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AU2013308838B2 - Dispensing applicator for fluids - Google Patents

Dispensing applicator for fluids Download PDF

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Publication number
AU2013308838B2
AU2013308838B2 AU2013308838A AU2013308838A AU2013308838B2 AU 2013308838 B2 AU2013308838 B2 AU 2013308838B2 AU 2013308838 A AU2013308838 A AU 2013308838A AU 2013308838 A AU2013308838 A AU 2013308838A AU 2013308838 B2 AU2013308838 B2 AU 2013308838B2
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AU
Australia
Prior art keywords
fluid
applicator
fracture
tongue
absorbent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU2013308838A
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AU2013308838A1 (en
Inventor
James Brown
Jack W. Kaufman
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Biomed Packaging Systems Inc
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Biomed Packaging Systems Inc
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Filing date
Publication date
Priority claimed from US13/601,755 external-priority patent/US9220881B2/en
Application filed by Biomed Packaging Systems Inc filed Critical Biomed Packaging Systems Inc
Publication of AU2013308838A1 publication Critical patent/AU2013308838A1/en
Application granted granted Critical
Publication of AU2013308838B2 publication Critical patent/AU2013308838B2/en
Ceased legal-status Critical Current
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M35/00Devices for applying media, e.g. remedies, on the human body
    • A61M35/003Portable hand-held applicators having means for dispensing or spreading integral media

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A band-held dispensing applicator comprising a source of fluid, a frangible applicator tip attached to the fluid source, and an absorbent member attached to the frangible applicator tip. The applicator may be applicable for a medical purpose. When the frangible applicator tip is broken, the fluid flows from the source to the absorbent member, spread on a surface. The frangible applicator tip may comprise a support element permanently connected to the fluid source, a relatively rigid tongue element, and a frangible region there between. The tongue element may comprise ribs for reinforcing the tongue element. The applicator tip may comprise a semi-permeable or non-permeable cover to control the speed and direction of the dispersion of the fluid.

Description

MFEHSING AFFLICATOE FOR «LpiBS cross mmRmm· το relate» applications
This application claims priority from US Set, Ho. 13/61)1,755 for a. DISPENSING APPLICATOR FOR FLUIDS, filed August 31, 2012:, which is a continuation-in-part of, and claims priority foom, U.S>: Sep, No. 13/306,681 for a DISPENSING APPLICATOR FOR FLUIDS, filed November 29, 2011, which is a cortrisuation of, and claims priority from, O.S. Set. No, lIU4fo910 for a DISPENSING APPLICATOR FOR FLUIDS,, filed April 26:, 2007,: and now ITS, Pat. No. 8,083,425, which Is a continuatipndn-part of, and claims priority from, U.S. Patent Application Serial No. 11/138,142 for a DISPENSING APPLICATOR FOR FLUIDS, filed May 26, 2005, and now U.S, Patent No, 7,614,811.. the entire contents of each of which are incorporated herein fully by reference, AND this application is a eontinuatfondu-part of, and claims priority fount, U.S. Ser, No, 12/596/1:03 for a DISPENSING APPLICATOR FOR FLUIDS, filed January 4, 2011, which is a continuation of, and claims priority from, U,S, Ser. No. 11/740,92:0 fora DISPENSING APPLICATOR FOR FLUIDS, filed April 27, 2007, and sow U,S. Patent No. 8,186,897, which is a continuation-in-'part ofi and claims priority from, U.S. Patent Application Serial No. 11/138,142 for a DISPENSING APPLICATOR FOR FLUIDS, filed May 26, 2005, and now U.S. Patent No, 7,614,811, the entire contents of each of which are incorporated herein fully by reference.
FIELD OF THE INVENTION
The present invention is directed in general to a device for swabbing a surface (e.g-,, skin) that is gripped by a user at one end and has a sponge or absorbent materia! at the other end. Further, the present invention is directed to such device for swabbing a surface having a source of a fluid (e,g< i: disinfectant of medicament) in eomnrunication with the sponge or absorbent material, Specifically, the present invention is directed to such a fluid-containing device lor swabbing a surface farther having an internal means that may be fractured or separated for the purpose of allowing the fluid to flow from; the fluid source to the sponge or absorbent material. Further, the present invention Is directed to such a fluid-containing means for swabbing a surface further having an anvil structure internal to the fluid-containing means with any of a variety of configurations for causing the: fracture of the fracture means.
BACRGROITO OF fm INVENTION
Applicators consisting of a wooden or piastre tube having a bad of cotton ou one or both ends, are widely used tor numerous purposes, such as the topical application of substances to the human body, A demand exists tor a product of this hind, which serves not only as an applicator, but also as a container for substances that are to be applied to the human body. To be practical, such a device would have to have a manually frangible portion that can readily be broken, while at the same time being so constructed so as to prevent inadvertent fracture, An applicator of this nature would be useful for numerous purposes.
Prior dispensing applicators allow an excess amount of fluid to flow too quickly, and tile fluid tends to pool on the surface. Depending upon the fluid being dispensed, such pooling can lead to patient discomfort, chemical burns, and even electrical shock if the dispensed fluid comes into contact with electrical leads attached to the patient's body.
Moreover, in prior art dispensing applicators, the dispensed fluid tends to accumulate at the rear-most portion of the absorbent member, which is closest to the fluid source, instead of preferably evenly spreading throughout the absorbent member.
As the volume of the dispensed fluid gradually increases at the rear portion of the absorbent member, the fluid begins to uncontrollably drip, thus, causing substantial inconvenience to a user. A need, therefore, exists for a dispensing applicator overcoming the above-identified drawbacks of the known related art, in particular, a further need exists for a hand-held dispensing applicator that has a simple structure allowing the practitioner'to deliver fluid to the surfaces to be treated in a controllable manner, Another need exists fob -a dispensing applicator that has an easily aetuaiable structure requiring minimal ipplication of manual force, Further, a need exists for a hand-held dispensing ippMcator that has a structure minimizing uncontrollable distribution of fluid, MJMMAM¥ OF THE ΪΜ¥ΕΝΤί0Μ
In light Of the foregoing, an: epibodimenf of the present invention provides a iand-held dispensing applicator comprising a source of fluid, a frangible applicator tip attached to the fluid source, and an absorbent member attached to the frangible applicator tip. When the frangible applicator tip is broken, fluid flows from the source U the absorbent member, whereby the fluid is applied and spread on a surface. Preferably, the fluid is: applied and spread on a surface in a controlled amount. Preforabiy, the fluid source is in the shape of a hollow tube container that is integrally formed, as a single piece, from a relatively rigid synthetic resinous material. Preferably, the frangible applicator tip comprises a support element permanently connected to the fluid source, a relatively rigid tongue element extending outwardly of foe support element at an end of the container, and a frangible region therebetween. Extending through the support element is a fluid conduit that is open at the end attached to the fluid source and sealed by the tongue element at the end attached to the absorbent member, By deflecting the tongue element relative to the support element, with a force of substantially predetermined magnitude, the frangible region between the tongue and support elements will fracture,: thereby permitting fluid to flow from the fluid source through the conduit, and Into the attached absorbent member. Preferably, the tongue element comprises ribs for reinforcing the tongue element to resist unintentional breaking of the frangible region. More preferably, the applicator tip comprises a semi-permeable or n©n~permeabie cover disposed around the frangible region to control the speed and direction of the dispersion of the fluid in the absorbent member,
In another embodiment, the dispensing applicator comprises a mounting body which has a stem piece extending from a mounting body top part, and a lower body part which carries at an underside of the latter, an absorbent applicator. An elongated fluid container having a first end that is attachable at a second opposite end thereof, and with a snap fit, in the stem pi ece, Optionally, threading of the first end of the fluid container may he used to secure to the stem piece. The container includes a frangible region remote from said first end, and a rigid tongue element extends longitudinally from tie frangible region, a tip end of the tongue element defining the container’s opposite second end. A fracture anvil is preferably disposed in the stem piece. To fracture the container frangible region ip order to release fluid therefrom and into the absorbent applicator, a relative movement between the container, i.e., the tongue element thereof, and the fracture anvil is effected. This is done with the tongue element in contact with the fracture anvil. The contact and relative movement produce the rupture of the frangible region, and, more specifically, at the joinder location of the tongue element and frangible region.
In one form, the fracture anvil is a cylindrical body having a cruciform passage extending therethrough and which receives the flat blade-like tongue element. In a second form, the fracture anvil is a cylindrical body having a partial or one-half cruciform passage extending therethrough and which receives the flat blade-like tongue element. By effecting a relative rotation between the fracture anvil and the container, the fracture of the frangible region results, Optionally, the cruciform passage may extend' completely through the fracture anvil, or may only extend partially through the fracture anvil.
In another form, the fracture anvil is a cylindrical body having a partial cruciform, partial semi-circular passage (e..g., see Figure 42A): extending therethrough and which receives the flat hlade-iike tongue element. By effecting a relative rotation: between the fracture anvil and the container, the partial fracture of the frangible region results. Optionally, the partial cruciform., partial semi-circular passage may extend completely through the fracture anvil, or may only extend partially through the fracture anvil.
In still another: form, the fracture anvil is a truncated cylinder received in the stem piece. By urging the container axially into the stem piece and: against an inclined end face of the fracture anvil, the tongue element is deflected laterally from its normal disposition to cause the rupture at the joinder location thereof with the remainder frangible- region. With the joinder structure ruptured, the fluid contents release from the container. Flow gutters or channels are defined in the fracture anvil to insure free contents flow from the container past or through the fracture anvil to the absorbent applicator. The arrangement of the tongue element and its structure is designed such as to allow retention of at least one ribbon residue material connecting the tongue element to the frangible region preelodini passing of the tongue element into a contents flow channel wherein it could impede or block flow to the absorbent applicator. A further feature provides a snap fit cap fitted on an Opposite contents filling end of the container opposite the tongue member end, and provided with a seal that excludes any possible and eonianfinatmg air presence in the contents at the container end. Optionally, the cap may be screwed on or permanently affixed with glue or some other adhesive.
The above ami other aspects, features and advantages of the present invention viil become apparent from the following description, read in conjunction with the amompanyiag drawings, in which like reference numerals: designate: the same elements.
MiEF DESCRIPTION OF THE: DRAWINGS A further understanding of the present invention can be obtained by reference to a preferred emhodimeni set forth in the illustrations of the accompanying drawings. Although the illustrated preferred embodiment is merely exemplary of methods, structures and compositions for carrying out the present invention, both the oiganixation and method of the invention, in general, together with further objectives ard advantages thereof, may be more easily understood fey reference to the drawings ard the following description. The drawings are not intended to limit the scope of this invention, Which: is set forth with particularity in the claims: as appended or as subsequently amended, hut merely to clarify and exemplify the invention.
For a more complete understanding of the present invention, reference is now made to the following drawings in which; FIG, I is a perspective view of a dispensing applicator according to the present invention; FIG. % is a side cross-sectional view of the dispensing applicator of Fig. 1; FIG, 3A is a top plan view of a preferred applicator tip for the dispensing applicator of Fig. 1; FIG. 3B is a side of the applicator tip of Fig. 3A wherein the frangible region is broken; FIG, 3C: is a top plan view of the applicator tip of Fig, 3B wherein apertures are formed In the broken frangible region; FIG, 4A. is a perspective view of a first preferred tongue .member for an asplkator tip for the dispensing applicator of Fig. 1; FIG. 4:B Is a perspective view of a second preferred tongue member for an applicator tip for the dispensing applicator of Fig, 1; FIG. 4C is a perspective view of a third preferred tongue member for an applicator tip for the dispensing applicator of Fig. 1; FIG.. 4D is a perspective view of a fourth preferred tongue member for an applicator tip for the dispensing applicator of Fig. 1; FIG 5A is a side cross-sectional view of a dispensing applicator constructed in accordance with a farther embodiment of the invention; FIG. 5B is a diagrammatic view illustrating two positions of the dispensing applicator of Fig. 5 A; FIG, 6 is a side cross-sectional view of a dispensing applicator structured in accordance with a further embodiment of the present invention and showing a side cross-seetlona! view of the applicator tip; FIG. 7 is a perspective detail, view of an applicator tip for use in a dispensing applicator according to the present invention having a semi-cover surrounding the fungible portion to control the speed and direction of the dispersion of the fluid Into the absorbent member. FIG. 8- is a top exoss-sectional view of a further aspect of an embodiment of an applicator according to the present invention; FIG, 9 is a side cross-sectional view of another aspect of an embodiment of the dispensing applicator configured with a collecting and guiding means for minimiang unintended evacuation of fluid via a proximal end of a fluid absorbent member enabling a preferred directional fluid flow; FIG. 10A is a side sectional view of still another embodiment of .the present invention;
FiG. FOB is a tear se.PtIo.nal view of the embodiment shown in FIG , If) A; FIG, 1.1 A is a side eross-seetional view of another dispensing applicator according to the present invention; FIG, 1 IB is a side cross-sectional view of a farther aspect of an embodiment of the dispensing applicator according to the present invention; FIG. 12 is a left front side perspective view of another embodiment of dispensing applicator wherein a fluid containing source is receivable attachable to an applicator mounting body stem piece in snap fit connection therewith, initiation of fluid flow feeing effected with a relative rotative movement between the fluid source container and a fracture anvil in the mounting body; FIG. 13 is a right side exploded view of the dispensing applicator shown in FIG. 12; FIG. 14 is a top plan view of the fluid source container, the container being closed at one end, an attachment body being located remote from said container at one end, a frangible length region including a tongue element extending longitudinally from said attachment body; FIG, 15 is an exploded perspective view of the applicator portion in the circle area 15 of FIG. 14, the tongue element being separated a distance from the attachment body frangible region so that the fluid container contents outflow apertures produced when the tongue element, is fractured from the frangible length region can he seen; FIG, 16 is a perspective view of an alternate embodiment of a fracture anvil shown in the circle area 16 in FIG, 13 of a fracture: anvil removably inserted in an applicator mounting: block part of the applicator head, the fracture anvil having a cruciform passage for reception of the fluid source container tongue element, the kacture anvil being' employed to effect fracture of the frangible region-tongue element joinder on a relative rotatable movement between said container and said fracture anvil; FIG, 17 is a side cross-sectional view of the fracture anvil taken along the line i?-17 in FIG.16; FIG. IS is an exploded left bottom side perspective view of the mounting block vhieh recei ves an absorbent applicator at a block bottom side; FIG. 19 is a left side view partly in section, partly in cross-section, of the nounting Mock, the absorbent applicator feeing affixed at the block bottom side, and an sbsorfeent swab member being affixed to a block front side adjacent to said bottom side, tae fluid source container being depicted in position just before the tongue carrying end taereof is inserted into the mounting block; FIG, 20 is a partial cross-sectional view of an upper inlet part of the mounting Mock stem piece indicated in the circle JO portion in FIG, 19, there being an annular slot inside and adjacent entry to the upper inlet, said slot defining a detest for retaining a Mange on the container to effect snap fit of the container to the applicator mounting body. FIG. 21 is a left side view similar to FIG, 19 showing the mounting block .with the tongue element positioned in the cruciform passage of the fracture anvil in pro-fraetare condition, the container being snap fitted to the mounting block; FIG, 22 is a cross-section view taken on the line 22-22 in FIG. 21; FIG, 23 is a view similar to FIG. 21 but showing the post fracture position of the fracture anvil, which has been rotated approximately ninety degrees from the position it occupied in FIG. 21; FIG. 24 is a cross-section view taken on the line 24-24 in FIG. 23; FIG. 25 Is a view similar to FIG, 23 except it is more broken away to depict bow on occurrence of fracture of the frangible piece fluid starts to flow from the apertures at the fracture point and disperses through the absorbent applicator; FIG, 26 is a view similar ίο FIG, 25 but showing a more profuse flow of fluid occurring following fracturing of the frangible piece; FIG, 27 is a left side view of the applicator dispenser depicting the orientation of the mounting block to present an absorbent swab to a position for use thereof; FIG, 28. is a right side exploded perspective view of another embodiment of a dispenser employing a fracture anvil for fracturing the tongue element at its joinder point with the frangible length thereby to initiate release of the container contents, into the absorbent applicator; FIG. 29 is a perspective view of a fragmentary length portion of the container in half section taken on line: 29-29 in FIG. 28 depleting the manner of the capping of the container contents filling end; FIG, 30 is an exploded fragmentary perspective view of several components embodied in the capped end structure of the container; FIG. 31 is a fragmentary perspective view of the applicator tongue element carrying end in circle portion 31 of FIG. 28, depicting the tongue element as fractured separated from the frangible section solely for the purpose of illustrating the apertures front which container fluid contents Issue therefrom into the absorbent applicator, ft being understood that in the embodiment where the tongue element is fractured with urging against a fracture anvil, it is preferable that the tongue element on fracturing? have retained structure by which it remains attached to the frangible length while stifr allowing meaningful .fluid contents flow;
FiCi . 32 is a perspective view of a fracture anvil sho wn in circle 32 of FIG. '28? depleting detail of a first form of truncated cylindrical fracture anvil wherein a chord face is formed in the anvil cylindrical periphery to define with an inner encircling wall face of the stem piece, a flow channel in the mounting block through which the .fluid contents communicate from the ruptured container to. the absorbent applicator; FIG. 33 is a perspective view of a second form of fracture anvil is provided with a gutter-like fluid contents flow channel at its cylindrical periphery; FIG, 34 is a perspective view of a third form of fracture anvil wherein its periphery is provided, with plural gutter-like fluid contests flow channels at its cylindrical periphery; FIGS, 35-37 are side views partly in sections of the applicator showing the urging direction travel of the container to engage the tongue element against the laciined end fracture faee of the fracture anvil to effect fracture of the tongue element &amp; its joinder to the frangible section, the moved fractured position of the tongue dement being depicted in dashed lines, and the release of fluid flow about the securely retained but fractured section; FIG. 38 shows a top cross-section view of an alternative construction of a dispenser system containing a head member secured to a dispensing fluid container and surrounded by a foam, dispersing member; FIG, 39 shows a side of the dispenser system of FIG, 38: daring use; FIG. 40: shows a side partial cross-section view of the dispenser system of FIG, 31;: FIG, 41A Is a top plan view of an alternative embodiment of a mounting block for a fluid dispensing applicator according to the invention which receives an absorbent applicator at a block bottom side; FIG, 41B is a cross-section view taken along the line 41B-4IB in FIG, 41 A; FIG, 410 is a cross-section view taken along the line 410-410 in FIG. 41 A; FIG, 42 A is a perspective view of an alternate embodiment of a fracture anvil for being removably inserted in an applicator mounting, block part of the applicator head, the fracture anvil having a partial cruciform, partial semi-circular passage for reception of the fluid source container tongue element, the fracture anvil being employed to -effect partial fracture of the frangible region-tongue element joinder on a relative rotatable movement between said container and said fracture anvil; FIG. 42B is a .cross-section view of the fracture anvil taken along the line 42B-42S in FIG, 42A; FIG. 43 1$ an exploded. lei! -front side perspective view of another embodiment of % dispensing applicator wherein a fluid containing source: is receivable attachable to an applicator mounting body stem piece in snap fit connection: therewith, initiation of fluid low being -effected with a relative rotative: movement between the fluid source container and a. fracture anvil in the mounting body;; FIG. 44 is a cross-section view taken along the line 44-44 in FIG. 43 showing Illative position of the tongue rnernber within the partial cruciform, partial semicircular passage of the fracture any#; FIG; 45 is an exploded left bottom: side perspective view of still another embodiment of a dispensing applicator wherein a fluid containing source is' receivable attachable to an; applicator mounting body stem piece in snap fit connection therewith, Initiation of fluid flow being effected with a relative rotative movement, between the fluid source container and a fracture anvil in the mounting hody, and further showing a dye packet assembly having top and bottom diffusers and a dye tablet; FIG. 46 is a cross-section view taken along the line 46-46 in FIG. 45- showing the partial cruciform, partial semi-circular passage of the fracture anvil therein; FIG, 47 is a top plan view of the assembled dispensing applicator shown in FIG. 45; FIG. 48 is a cross-section view of the assembled fluid dispensing applicator taken along the line 48-48 in FIG. 47; FIG. 49A is a top perspective view of a preferred embodiment of a diffuser element for the dye packet, assembly showing the internal configuration thereof; FIG. 49B -is a bottom plan view of the diffuser element shown in FIG. 49A; FIG, 49C is a cross-section view of the diffuser element taken along the line 49C-49C in: FIG, 49B; FIG, .SO is an exploded left front side perspective view of still another embodiment of a dispensing: applicator wherein a fluid containing source is receivable attachable to an applicator mounting body stem piece in snap fit connection therewith, initiation of fluid flow being effected with a relative rotative movement between the fluid source container and a fracture anvil in the mounting body; FIG. 51 is a cross-section view taken on the line 51-51 in FIG, 50 showing the partial cruciform, partial semi-circular passage of the fracture anvil; FIG, 52 is a side perspective view of the assembled dispensing applicator shown in FIG. 50; FIG, 53 is a cross-section view of the assembled fluid dispensing applicator taken along the line 53-53 in FIG, 52; PIG. 54A is an elevated perspective view of still another alternative embodiment of an assembled dispensing applicator wherein a fluid containing source is receivably attachable: to an applicator mounting body stem piece in snap fit connection therewith, initiation of fluid flow being effected with a relative downward movement between the fluid, source container and a fracture member in the mounting body; FIG, 54B is an exploded left front side perspective view of the. dispensing applicator shown in FIG, S4A wherein a fluid containing source is receivably attachable to an applicator mounting body stem piece: in snap Ft connection therewith, initiation of fluid flow being effected with a. relative downward movement between the fluid source container and a fracture member in the mounting body; .FIG, 54C is a side cross-section view of the assembled dispensing applicator of FIG, 54A taken along the line S4C-54C; FIG. 54D is a front cross-section view of the assembled dispensing applicator of FIG, 54A taken along the line 54D-S4D; FIG. 55 is an elevated perspective view of an embodiment of a fluid dispersing head for use with the fluid dispensing applicator according to an alternative embodiment of the invention; FIG. 36a is a side view of the fluid dispersing head of FIG. 55; FIG. 56B is a top plan view of the fluid dispersing head of FIG. 55; FIG. 56€ is a front cross-section view of the fluid dispersing head of FIG, 55 taken along the line 56C-56C in FIG. 56A further showing the relative position of an applicator tip member and fracture member within the fluid dispersing head; FIG. 560 is a left side cross-section view of the fluid dispersing head of FIG. 55 taken along the line 36D-50D in FIG, 56B further showing the relative position of an applicator tip member and fracture member within the fluid dispersing head; FIG- 57 is a bottom view of the fluid dispersing head of FIG, 55 ; FIG. 58A is a top end plan view of an alternative embodiment of an applicator mounting block according to the invention having an opening on one side for the dispersing of fluid to only one side of a fluid dispensing head;: FIG, 58B is a first side view of the applicator mounting block of FIG. 58'A showing no opening for dispersing fluid to the fluid dispersing head; FIG. 58C is a second side view of the applicator mounting block; of FIG, 58A; FIG. 58D is a third side view of the applicator mounting block of FIG. 5-8 A showing the opening for dispersing of fluid to the fluid dispersing head:; and FIG. 58E is a bottom end view of the-applicator mounting block of FIGs. 5SA-D showsing the partial cruci form, partial, semi-circular passage of the fracture anvil, DETAILED mwMmm of the preferred embodiments
As required, a detailed illustrative embodiment of the present invention is disclosed herein. However, techniques, systems, compositions and operating structures in accordance with the present invention may fee embodied in a wide variety of sizes, shapes, forms and modes, some of which may he quite different from those in the disclosed embodiment. Consequently, the specific structural and functional details disclosed herein are merely representative, yet in that regard, they are deemed to afford the best embodiment for purposes of disclosure and to provide a basis for the claims herein which, define the scope of the present invention.
Reference will mow be made in detail to several embodiments of the invention itat are illustrated in the accompanying drawings. Wherever possible, same or similar reference numerals- are used in the drawings and the description to refer to the same or like parts or steps. The drawings are in simplified form and are not to precise scale» Far purposes of convenience and clarity only, directional terms, such as top, bottom, up* down, over, above, and below may be used with respect to the drawings. These and similar directional terms should not be construed to limit the· scope of the invention in aay manner. The words “connect,” “couple,* and similar: terms with their inflectional morphemes do not necessarily denote -direct, and immediate connections:, but also Delude Connections, through mediate elements or devices.
Referring now to the drawings, Figs. 1 and .2: in .particular, Illustrate a dispensing applicator according to the present invention generally indicated as reference numeral 1, Dispensing applicator 1 comprises an absorbent applicator member 8, a fluid source it, and an applicator tip 15. Absorbent member 8 may be of any suitable shape, such as cubic, cylindrical, conical, -or wedgeriilee, and may comprise any suitable absorbent material, such as cotton or sponge, Fluid source 10, or handle, may have any suitable, shape. As shown in Fig. 1, fluid source 10: is preferably a hollow, generally cylindrical body. The end of fluid source body located adjacent to absorbent member 8 is preferably sealed thereto at a joint or seam 30, such as by heat sealing, to enclose the Hold substance contained within fluid source body 10. Applicator tip 15 comprises an attachment member 17 and tongue member 18 joined thereto by a tapered frangible region or juncture 19.
Tongue member 18 is preferably a flat and broad shape that extends a distance into absorbent member 8, such that tongue member 1-8 is longer than it is wide (see Figs, 4A to 4D). It should be noted that the attachment member .17 is relatively thick adjacent the fluid source body 10, and tapers toward frangible juncture 19. Absorbent member $ is preferably connected to attachment member IT and/or fluid source body 10,
The manner of utilmug dispensing applicator 1 will be self-evident»; add simply involves holding ihe dispensing applicator 1 with the absorbent application member 8 against « application surface. Dispensing applicator 1 is held such that tongue member Ib is at an acute angle (i.e,, substantially-parallel) to the 'application surface, Sufficient downward pressure of tongue member IS against the application surface will deflect tongue fhemher If from the central axis o (see Figs, \ 4A,: §4) bf the fluid source body 10. At a predetermined amount of deflection, the franglhie juncture 19 will fracture or break: proximate the intersection thereof but will not separate. Fracture of the frangible juncture 19 will desirably be achieved by the application of approximately 0.25 to 3 pounds of force of tongue member If against the application surface and will cause opening for fluid flow proximate junctures or apertures 12 as will be discussed more folly below.
Referring still to Fig. 1, a dip mold process may be used to make source body 10» applicator tip 15, Or both, The dip molding process begins with preheating of a male mold made from a material having relatively high heat capacity and coefficient of thermal conductivity. This, heated mold is then placed in a fluidized bed of meltable particulate resinous material for a time needed to provide a coating of a desired thickness. The mold with melted resinous material is then removed from the fluidized bed, heated a second time and cooled. Finally the tube component is stripped from the mold.
As noted above, it is important for the proper functioning of the applicator that the tube be fabricated from a material that is sufficiently rigid to enable manual fracture of the frangible end portion. If the material is too flexible, deflection of the stem will not produce the desired result. On the other hand, if the material is excessively rigid and brittle, the possibility of an inadvertent fracture will exist, and compression of the fedy portion ίο promote flow would be precluded due: to the likelihood of crackings or simply because excess force is required. A variety of synthetic resinous materials may h utilized, the selection of which, will he evident to those skilled in the art. The resin mist have a sufficiently low melt viscosity to permit coverage of all mold surfaces, and it must produce a nonporoiis and pinhole-free structure. The polymer will normally be a thermoplastic, and exemplary materials Include polypropylene, high density polyethylene, rigid polyvinyl chloride and nylon.
The tongue member of the applicator tip will preferably be elongated to facilitate atachmeut thereof to the absorbent member 8, However, it is not essential that the: ungue member 1.8 be of any specific shape and, for example, may be rectangular or cylindrical. Regardless of the shape of tongue member 18, It is essential that suitable reinforcing ribs, as described hereinabove, be included to prevent unintentional bnaking: or separation of frangible portion 19. Moreover, the shape: of tongue member If will dictate the shape of the orifice formed in applicator tip IS where the tongue member 18 is fractured for fluid release. Accordingly, the flow rate and overall amount of fluid applied to an application surface by dispensing applicator 1 is a function of several factors,: including the shape and strength of tongue member 18 (and the resulting orifice), the porosity of absorbent member 8, the density of the fluid, and the force employed by the user when breaking frangible portion 19 and pressing absorbent, member 8 against the application surface. Determining the optimal flow rate for a given application is well within the ability of one skilled in the art and, therefore, will not be elaborated upon herein.
As stated above, the porous member may be made of any suitable maierial(s), most notably open cell, soft, and pliant sponge-like foam, that may be, for example, a polyurethane composition, 'Die choice of material will depend largely upon the particular application and the characteristics of tongue member 18 and the fluid held in source body 10, la its normal form, source body 10 will be of circular cross-section. However, nher shapes are also believed to be feasible. The source body 10 may 'have a square, tiangolar, or rectangular cross-section, and the shape may indeed be asymmetrical in cross section and of dissimilar shapes at different points along its length, It will be ^predated there fore that, as used herein the term !! diameter** is to be construed in a head sense, so as to be 'applicable to non-circular elements corresponding to those dmwn, and to refer to the maximum cross-sectional dimension of the element, although normally completely hollow, the source body 10 may include appropriate mnforeemeni elements, such as internal support pillars, to provide adequate overall arength and rigidity, while permitting the source body 10 to have a thinner than would otherwise he possible. Likewise, source body 10 may include a solid portion, for esample, to be gripped while breaking frangible portion 10, so that source body 10 will net he prematurely compressed or squeezed, which might result in too much fluid flowing too quickly into absorbent member 8.
As shown in Figs. 3B and 3C, breaking frangible juncture 19 will result in the frrmation of one or more apertures 12 through which fluid from source body lb may flow into absorbent member 8 (not shown, but fluid flow is shown from apertures 12), such that tongue portion 18 may remain flexibly taxed to frangible: juncture member 19 and is preferably prohibited from separation. In other words, fracture of the region proximate apertures is required, but tongue portion 18 remains flexibly joined along a hinge line and Is strengthened by rib members 31, as will be discussed. in its most preferable form, all portions of the source body 10 will have a wall thickness that is substantially uniform at a value of about 0,005 Inch to about 0,025 inch (about 0.:127 mm to about 0.635 mm), but may become thinner proximate regions 12 to urge ready fracture. The source body 10 is preferably made of polypropylene having a density of 0.897 g/cm2 and a flexural modulus of about 15() Kpsi (about 1035 MPa), as determined by ASTM method 790B. The source body 10 is preferably about 6 inches to ibottt 10 inches in overall length, and about ().25 to about L0 inches in diameter, so as i) be convenient to grasp and still contain sufficient fluid for a single application.
The applicator tip in is about 1 to 3 inches long, and about #.325 inches in Mameter, The frangible juncture 19 will preferably have a thickness of about 0,0005 heir to about 0,002 inch (about 0,013 mm to about 0.050 mm). The one Or more tpertures 12, which are produced % the fracture of frangible juncture 19, but not the separation of tongue member 18, may be of any suitable size, but preferably have a vldih. and height that is substantially correlated to the width and thickness of large ribs 31, 32 (me Fig, 3).
Referring to Figs, 3 A and.S€, tongue, member 18 preferably comprises a plurality of reinforcing ribs 31, 32. Due to the reinforcing ribs and the resultant rigidity of tomgue member 18, there will be reduced ilex along the length of tongue 18, and an applied ifbree on tongue member 18 will be effectively entirely transferred to and concentrated at frangible juncture 19 proximate apertures .12, The result will be the reliable fracturing of frangible juncture 19 proximate apertures 12, which fracturing results in the formation of one or more apertures 12 of suitable size on the same side as tie force application to permit the fluid within the fluid source body 10 to be discharged therefrom and distributed across a predetermined area of absorbent application member 8 (Fig. 1), As noted above, it will generally he desirable for the material forming fluid source body 10 to he sufficiently thin to permit some compression of fluid source body 10, so as to enable discharge of a liquid therein at a. faster rate than would otherwise ocemy and/or to promote the flow of the fluid, especially if the fluid is relatively viscous. While in a. first use apertures 12 may only fracture along a portion of the aperture directing fluid flow along one side (the force application side) if force is directed in the opposite direction, apertures 12 will fracture along their remaining region, retaining tongue member 18 only by the flexible hinge between apertures 12 and strengthening ribs 31.
Fig, 4A illustrates a Hist -arrangement of ribs lor a tongue 18 a, As shown, tongue 18a is rectilinear in. shape with a bottom edge 40a, a top edge 41a, and side edges 42a, 43 a. Bottom, edge 40a is substantially linear with a central point 45a and corners 4ba, 4?a at which the proximate ends of respective side edge 42a, 43a meet. Top edge 41 a is curvilinear with m apex 48a and comers 49a, 50a at which the distal ends of respect side edges 42a, 43m terminate. Central point 45a and apex 48a Me along central axis e. The distance between central point 45a and apex 48a is the length of tongue 18a, while the distance between comers: 49a, 50a is the width of tongue 18a. The thickness 51a of tongue 18a is the distance between the top and bottom surfaces thereof Side edges 42a, 43a each haw; a respective large nib 31a, 30a extending along the entire length thereof It is notable that tongue 18a extends a distance: beyond the length of the large ribs 3 l a, 30a to apex 48a, whereby top edge 4 la is not reinforced. Ribs 31 a, 30a are each about 3 times fee thickness of tongue 18a and about. 1/5* fee width of tongue 18a. Small ribs 32 are disposed directly a%eerit to their respective: large rib 31a, 30a on the side thereof that is proximate to central: axis e, Each small rib 32 extends from bottom edge 40a for a distance that is about 3/10* the length of the large ribs 3 in, 32a. Each small rib 32 is about 2 times fee thickness of tongue 18a aid about 1/10* the width of tongue 18a,
Fig. 4B illustrates a second arrangement of ribs for a tongue 18b, As shown, tongue 18b is rectilinear in shape with a bottom edge 40b, a top edge 41b, and side: edges 42b, 43b, Bottom edge 40b Is substantially linear with a central point 45b and comers 46b, 4?b at which the proximate ends of respective side edge 42b, 43b meet. Top edge 41b is curvilinear with an. apex 48b and comers 49b, 50b at which the distal ends of respect side edges 42b, 43b terminate. Central point 45b and apex 48b lie along central axis σ (se&amp; Figs. 2. 4A). The distance between central point 45h and apex: 48b is the length of tongue 18b, while the distance between comers 49b, 50b is the width of tongue 18b. The thickness 51b of tongue 18b is the distance between the top and bottom surfaces thereof. Side edges 42b, 43b each has a respective large rib 31 h, 32b extending along the entire length thereof. Large ribs 31b are each about 3 times: fee thickness of tongue 18b and about 1/5* the width of tongue 1.8b, Small half-ribs 33h, 34b are disposed directly adjacent to their respective large ribs 31 h on the sides thereof that are proximate to central axis e. A small rib 35b Is disposed along central axis c, Bach smaiihali~rib 33b, 34b extends from bottom edge 40b a dietan.ee that is about 3/10 the length of the large ribs 3 lb. Each small haffrib 33b, 34b is about 2 times the thickness of tongue 18b and about 1/20® the width of tongue 18b, The small rib 35b extends Bona bottom edge 40b a distance that is about 3/10 the length, of the large ribs 3 lb. The: small rib 35b is about 2 times the thickness of tongue 18b and about 1/10^ the width of tongue 18b,:
Fig. 4C illustrates a third arrangement of ribs for a tongue 18e. As shown, tongue 18c is rectilinear in shape with a bottom edge 40e,: a top edge 41c, and side edges 42e, 43c. Bottom edge 40c is substantially linear with a central point 45e and corners 46c, 47c at which the proximate ends of respective side edge 42c, 43c meet. Top edge 41 els curvilinear with an apex 48c and corners 49e, 50c at which the distal ends of respect side edges 42e, 43c terminate. Central; point :45 c and apex 48e lie along central axis c ($m Figs, 2, 4A1. The distance between central point 45c and apex 48e is the length of tongue 18c, while the distance between corners 49c, 5'0c is the width of tongue 18e, The thickness 51 c of tongue 18e is the distance between the top and lottem surfaces thereof Side edges 42c, 43c each has a respective large rib 31c, 32e extending along the entire length thereof Large ribs 3Ic, 32e are each about 3 times the thickness of tongue 18e and about i/5ih the width of tongue 18c, A small rib 35c is disposed along central axis c. The small rib 35c extends from bottom edge 40c a distance that is about 3/10 the length of the large ribs 31, The small rib 35c is about 2 times the thickness of tongue 18c and abo ut the width of tong ue 18c.
Fig, 40 illustrates a fourth arrangement of ribs for a tongue ISd, As shown, tongue 18d is rectilinear in shape with a bottom edge 4G.d, a top edge 4Id, and. side edges 424, 43d. Bottom edge 40d Is: substantially linear with a central point 45d and corners 464, 47d at which the proximate ends of respective side edge 424, 43d meet. Top edge 4.14 is curvilinear with an apex 484 and corners 494, 504 at which the distal mds of respect side edges 42d, 434 template. Central point 454 and apex 484 both lie sio»g central axis c (see Figs, 2, 4A)< The distance between central point 454 and apex I8d is tire length of tongue 184, while the distance between corners 494, 304 Is the width of tongue 184. lie thickness 514 of tongue 184 is the distance between the top tnd bottom surfaces thereof. Side edges 42d, 43d each has a respective large rib 3id, 124 extending along the entire length thereof Large ribs 314,, 324 are each about 3 times the thickness of tongue 184 and biout 1/Sts the width of tongue 1 Ed, Spaced apart lorn each large rib 314, 324 is a respective small rib 33d, 34d. The small ribs 334, 344 are preferably, feta not aeoessariiw, spaced apart from each other and evenly spaced mm central axis c. The small ribs 334, 344 are closer to central axis c than to their iespective large ribs 314, 324, The small ribs 334, 344 extend from bottom edge; 40b a cistanee that is about 3-/10 the length of the large ribs 314, 324, The small ribs 334, 344 are about 2 times the thickness of tongue 18b and about l/lO* the width of tongue 18b. Each small rib 334, 344 is preferably spaced apart from the central axis e by a distance that is approximately equal to its respective width. The small ribs 334, 344 are spaced apart from each other by a distance that % approximately equal to 2 times the width of either small rib 334 or 344, Each small rib 334, 344 is preferably spaced apart from: its respective large rib 314, 324 by a distance that is approximately equal to 2 times its respective width, but other distances may he utilized.
Figs.. SA and SB illustrate a second dispensing applicator 100 according to the present invention. Dispensing applicator 100 comprises an applicator head 10E, a source of fluid, which is shown as a hollow, generally cylindrical body 110, and an applicator tip 115, which has an attachment member 117 and tongue member H8 joined thereto by a tapered frangible juncture member 119 having fracture sites as noted above at 12 (see Fig. 3C). Fluid source body 110 and applicator tip 11$ are respectively identical in form and function to fluid source body 10 and applicator tip 15 described hereinabove in reference to Figures 1 through 4J>.
In addition, dispensing applicator member 100 is provided with an absorbent swab member 201, and an inwardly projecting ridge-shaped member 215 provided within body Π0. A portion of body 110 is adapted to hold and/or support absorbent applicator member 105, As shown, absorbent applicator member 105 is held and supported on a surface 106. Surface 106 is provided with at least one aperture 107, such that the fluid may flow from the interior of body 110 into absorbent applicator member 105, as discussed in further detail herein below. Furthermore, a portion of body 110 is adapted to hold and/or support absorbent swab member 210.
As shown, absorbent swab member 210 is held and supported on a surface 203 that is connected to body 110 by a stock member 204, Absorbent swab member 210 is preferably not in fluid eommuhleation with the interior of body 110. Outer surface 201 of absorbent applicator member 105 is oriented relati ve to body 200 such that, when absorbent applicator member 105 Is substantially parallel to an (he,, in contact ·with the apphcation surface), die reotrai axis c of body 110 forms an angle of about 45° with the: application surf^ei which angle provides a comfortable grip for the user and faciiitates the flow of fluid through the inferior of eody '110 into absorbent application: member 105. Similarly* absorbent applicator member 105 uf absorbent swab member 210 is oriented relative to body 200, such that, when absorbent swab member 210 is substantially parallel to an application surface (i.e,, hi contact with the application surface), the central axis c of body 200 forms an angle of about 30° with the application surface, which angle provides a comfortable grip for the user and allows the user to spread the applied !Md over a relatively /large area with relatively less arm movement and/or extension.
The manner of utilizing dispensing applicator TOO involves holding the dispensing applicator TOO with the absorbent application member 105 against an applieation snrfaee. Downward pressure of applicator 100 against the applieation surface will displace head 108 upwardly and force ridge-shaped member 215 into contact with tongue member lit. Sufficient upward pressure of ridge-shaped member '2.15 against tongue member 118 will upwardly deflect the tongue member 118 from the central axis c of the fluid source body 110» At a predetermined amount of deflection, the frangible Juncture 119 will fracture or break at apertures 12 (see Fig, 3(¾ but not along the entire hinge region or at strengthening ribs (not shown) preventing unintended separation. Fracture of the frangible juncture 119 will desirably be achieved by the application of approximately 0.25 to 5 pounds of downward force of applicator 100 against the application surface. Breaking frangible juncture Iff will result fluid from fluid source body 110 flowing into head 108 via apertures 12 (not shown, but noted in Figs, 3A-3C), Comparable to breaking frangible region 19 of applicator tip 15, as discussed herein above in reference to Figures 3 A to 3G, breaking frangible region 119 af applicator tip 115 results in the formation of one or more apertures in applicator tip 115 through which fluid fiorn source body 110 may flow into head 108 without the unintended separation of the tip member 115, Thus, in general, applicator tip 15 is tomparable in form and structure to applicator tip 115. 9 Absorbent swab member 210 may be employed for a variety of purposes. Swab 110 may be Used to spread a fluid over the application surface after the application number 105 initially applies the fluid. Using swab 210 in ibis way would be priicularly advantageous if the amount of fluid that is desired to cover a relatively large surface area has been inadvertently applied to a relatively small area, which may eceur if application member 105 becomes over-saturated with fluid and can no longer effectively regulate the flow rate and amount of fluid being applied. Moreover, swab member :210 may be used to soak up fluid on the application surface, for example, when an excess of fluid has been applied or the fluid has been applied: over the wrong area.
As stated above, absorbent swab member 210 is preferably not in fluid communication, with the interior of body 200. However, a possible use for swab 210 is applying fluid to a second surface area that is separate and apart from the surface area over which used absorbent application member 105. In the critical interest of avoiding eross-contaminalion, it is desirable to use the application member 105 over only a single contiguous surface area that should foe relatively limited (e.g,, the upper front of the torso, instead of the entire front of the torso). Accordingly, after an initial application, any additional fluid in a given dispensing applicator may go vvastefnlly unutilized. Therefore, in another embodiment of absorbent applicator head 108, there is provided at least one aperture (no? shown) in surface 203, such that fluid may flow from the interior of foody 200 into absorbent swab member 210.
Head 108 may be detachable from fluid body 110. Fluid body 110 may contain an amount of fluid that is greater than is necessary for a given application, Accordingly, after an initial application, any additional fluid in a given dispensing applicator may go wastefully unutilized. Therefore, in another embodiment of applicator 100, fluid body '110 is removably attached to head 108 so that head 108 may be disposed of separately from: fluid body 110. if fluid body 110 contains residual fluid, after an initial application, other absorbent head may be attached to fluid body 110, thereby allowing the residual fluid to be applied to another application surface.
Referring to Fig, 6, as stated above, it is desirous to avoid cross-contamination by using a given absorbent applicator over only a single contiguous, relatively limited, surface area, Yet, using a given absorbent application in such a manner will often result in an amount of fluid therein being wasted, Accordingly, a dispensing applicator according to the present invention, generally indicated as reference numeral 300, may be provided with a relatively larger, multi-sided absorbent applicator member 308, such that different sides thereof may be used on different surface areas,
Referring to Fig. 7, there is shown an applicator tip having a semi-permeahie or non-perm cable cover 400 substantially surrounding frangible juncture 19. The purpose of cover 400 is to control the speed and direction of the dispersion of fluid in a surrounding absorbent member (not shown).
Preferably, a rearward edge 401 of cover 400 will be attached to applicator tip 15. More preferably, rearward edge 401 will be fully sealed around applicator tip 1.5 without gaps or holes so that fluid may not flow rearward under edge 401. If cover 400 is semi-permeable adjacent to rearward edge 401, fluid may flow rearward through cover 400, but: preferably will, not flow rearward under edge 401 given the more preferable fully sealed attachment thereof to applicator tip 15. In contrast, a forward or distal edge 402 of cover 400 is preferably free and unattached to applicator tip 15 so that fluid may flow forward· under cover 400 substantially without being impeded thereby.
Preferably, cover 400 is formed as a seamless, unitary cylindrical sleeve (e.g., having a circular, square, or rectangular cross-section). Nonetheless:, cover 400 may fee of any suitable- shape and construction. Depending upon its intended function, cover 400 inay be semi-permeable or impermeable to fluid. Cover 400 may be made of various materials, including' natural and/or synthetic rubbers, thermoplastics (e.g,, polyethylene), eelnlosie materials or similar fibers (Le,, natural polymerie fibers), and metallic materials.;: Cover 400 may he a contiguous sheet, a mesh, a felt, or another suitable form, with or without reinforcing fibers and/or seams (Le., “rip-stop'5 seams).
Preferably, cover 400 is pliable and flexible so that it does not impede deflection of tongue member 18. Is other words, it is preferable that cover 400 does not binder the breaking of tangible juncture 19.
However, surrounding frangible juncture 19 with a cover 400 having suitable thickness and/or stiffness will provide a level of reinforcement that prevents inadvertent breaking of frangible juncture 19, Accordingly, by employing a satiable thick, and/or stiff cover 400, tongue member 18 may fee provided without reinforcing ribs. Thus, employing cover 400 to reinforce frangible juncture 19 will advantageously simplify production of application tip 15, since tongue member 18 may be molded as a simple flat extension.
Controlling a rate of dispensing fluid is critical because a) over saturation of the absorbent member reduces: the collecting capability of this member, and b) back flow of the delivered fluid from the distal mid towards the proximal end of the absorbent member interferes with the physician’s work. Accordingly, Fig. E illustrates a further embodiment of the invention directed to a dispensing applicator 3SO which is configured to prevent fluid from uncontrollably entering an attachment member 354 that is coupled to tip 15. At least one, but preferably a multiplicity of capillary vessels 352 is provided within the attachment member. Being in fluid communication with a source body 360, vessels 352, by virtue of their cross-section, meter an amount of fluid penetrating into the absorbent member (not shown). Thus, a combination of the openings* which are formed as a result of breaking frangible region 19 and vessels 352, effectively limits oversaturation of the absorbent member.
Still another embodiment of a dispensing applicator 450 is illustrated in Fig- 9, As shown, applicator 450 does not have a frangible structure or region. Instead, an attachment member 452 is provided with at least one or more capillary vessels 454 COStrollably traversed by fluid from fluid source 464, Vessels 454 project into an applicator tip 465 while penetrating a proximal end of an absorbent member 456, The cross-section of the vessels is selected to provide a metered delivery of fluid.
However, absorbent member 456 ean still accumulate an excessive amount of fluid, which will eventually result In a backflow1' towards the proximal end of the absorbent member and subsequent voluntary evacuation of fluid via this end. To limit or minimize such a possibility, applicator 450 has a flow limiting component or cover 458. Formed within absorbent member 456 and, preferably, sealed to the proximal end thereof, cover 458 is able to collect fluid flowing towards the proximal end of absorbent member 456 and, thus, prevents uncontrollable evacuation of accumulated fluid.
As illustrated, cover 458 is provided With a body having a pair of concave sides 46(5 whose free or distal ends are spaced from one another at a distance that defines an open sxif/entrance tor fluid. The bottom portions 464 of cover 458 extend complementary to converging flanks 466 of attachment member 452, Stability of an applicator tip 465 is added by providing the distal end of attachment member 452 with a rib 470. Note that cover 458 does not completely prevent backflow of fluid leaving a space within the absorbent member which is sufficient to amply, but not excessively, wet tbs surfaces of ibis member. A further embodiment of dispensing applicator 479 is illustrated in Figs.lOA and 10®. Applicator 479 has a frangible region 19 structured substantially similar to the like configured regions which are discussed in detail above. To prevent uncontrollable evacuation of fluid via a proximal end 474 of an absorbent member 476, applicator 479 has a cover 472 functioning similarly to cover 458 of figure 9. However, cover 472 is configured with a pair of rectilinear flanks 478 and a bottom portion 480 that extends parallel to a flat distal end of attachment member 17. Cover 472 may also fee cone-like,
The applicator 479 is formed by inserting cover 472 Into and sealing it to the interior of absorbent member 476. The bottom portion 480 lies preferably flush with the proximal end of the absorbent member and is sealingly attached to frangible region 19.
Embodiments of a dispensing applicator 490 illustrated in Figs. HA and 11B are conceptually close to the embodiment illustrated la Figs. 5A and 5B and include an applicator head 492 which is formed with an absorbent member 494 and a swab member 496. The absorbent and swabmembers have a center axes A-A and B-B, respectively, which intersect one another forming an angle of about 80-100°.
The difference: between the embodiment of Figs. 5A and SB and the one in Figs, 11A and l IB includes utilization of one or more capillary vessels 498 provided instead of the frangible region. While, swab member 496 of Fig. 11A is prevented from, .fluid communication with an interior of a fluid source body, swab member 496 of Fig.1 I B is traversed by a capillary tube 499 and has an inner surface 497 in fluid communication with the interior via an opening 495:, for the reasons explained above in reference to Figs, 5 A and SB.
Another embodiment of the dispenser is depicted m Figs. 12-27. With reference to those Figures, dispensing applicator: 60 comprises a mounting: block 66 having; a base piece 61, a bottom side skirt part 62 to which, is affixed an absorbent sponge: type applicator 63, and a stem piece 64 upstanding front base piece 61. An absorbent swab 65 is carried at an adjacent side of the mounting block 66, for which purpose the mounting block 66 indudes a: mounting bracket 67 (depicted to advantage In Fig. 18} receptive of a skitt piece 68 to which swab 65 is affixed.
Stem piece 64 is preferably a tubular component and its interior space is in communication with the interior space 69 of base piece 61 (see Fig. 21), the last mentioned space ouiletting to absorbent applicator 63 so that a flow course in the mounting block 66 has inlet in the stem piece 64 and outlet at applicator 63. An elongated flnid container 70 is attachable to the mounting block, an end of the container being received in stem piece 64.
Referring in more detail to figs. 12-17, container 76 which is of tubular configuration is capped at a first end as at 71. At a distal opposite end length, an attachment member 72 has a length portion, as at 73, received inside the container' and, the length portion is affixed to the container as, for example, by beat sealing. The length portion has a flange 80 thereon and a continuing length portion 73a constituting a feangibie section, this section transitions into a tongue element, 74, The juncture of the tongue element 74 and the continuing length portion 73a defines a weakened joinder location: at which fee fracture and at feast partial separation of the tongue, element from the feangibie section will occur, enabling ontletting: of fluid from container 70,
Figs. 16 and 17 depict on© embodiment of a fracture an vil 76. The fracture anvil has a cruciform passage 77 extending therethrough, as well as a number of fluid pass-ferough passages 78 for enabling fluid released on fracture to flow toward absorbent applicator 63.
When the second opposite end of the container 70 is inserted into the stem piece 64, fee tongue dement is aligned such that it will enter and locate in the cross passage part 77a of cruciform passage 77, the fracture anvil having been inserted in the bore 72 of the stem piece. The second opposite end of the container 70: is snap fit connected to the steal piece 64. The arrangement is stick that with flange 80 received in annular internal groove or slot 154 m the stem piece (see Fig, 21), the tongue element "74 is properly positioned in cross passage: part 77a for effecting fracture.
External dimensioning of the annular flange: 80 and internal groove 154 is such that the container 70 can he rotated relative to the fracture anvil while the fracture anvil is held. This approximately ninety degree rotation of the container is effective to twist the tongue element: 74 at the weakened joinder location with length portion 73fi* fracturing it and effecting at least partial separation from length portion 73a, With this fracture, fluid releases from the container into the mounting block through: course. Figs 21, 22 and Figs. 23, 24 show, respectively, pro and post-fracture orientations of length portion 73».
Fig, 25 shows how fluid outlets the container in streams from apertures S3 at the fracture site of tongue element 74 and length portion 73a, the apertures; 83 being shower in Fig,15 as well. Fig. 26 shows the pattern of fluid flow to and distributed throughout the absorbent applicator 63, which distribution is promoted by the passages 84 formed in the applicator 63,:
Fig. 27 illustrates the orientation of the dispenser 60 when, e.g., it is desired to swab a large patient area, spreading out the quantity of fluid applied to the patient with absorbent swab.65.
Fig. 28 depicts an embodiment of dispensing applicator §0-2, which is identical with the Fig. 13 applicator 60 except wherein fracture arm! 76-1 is embodied as a truncated cylinder, The anvil 76-1 shown in more detail in Figs, 32 and 35 is provided with a flat inclined top face 132, and with a fiat chord face 1.77 at the cylindrical periphery thereof and extending between top face 132 and a bottom face 179, With the anvil 76-1 received in stem piece 64 as shown in Figs. 35-37, flat chord face 177 is disposed spaced from the cylindrical inner surface of the stem piece 64 and therewith defines a flow channel along which fluid contents of container 70 can flow from interior space 99 of the stem piece 64 to the interior space 69 of base piece 61.
Referring to Figs. 35-37, explanation of fracturing lor fluid flow '{but not separation) of the frangible weakened joint at which fee tongue element 74 is connected to the frangible length part 73a is now given. The circular inner surface of the stem piece 64 is shouldered or provided with a stop as at 139 to hold the fracture anvil 76-1 {Fig, 32) in stopped position so it cannot move lower in the stem piece passage. When the applicator is to be used, a fluid container 70 will be Inserted into the stem piece 64* tongue element 74 first. The tip end of the tongue element 74 will in course of insertion travel strike against the inclined top face 132 of the fracture anvil 76-1 in consequence of which the tongue eleinent 64 will he laterally displaced from the full line position thereof in Fig.. 35 to the position as shown in Ftp 36 and: 37. That displacement effects mptnre (but not separation) of the tongue element at Its joinder location with the frangible region and container fluid contents are released through orifices 83 (Fig. 15) into the stem piece interior space. It is specifically noted, that in Fig, 31 the separation is shown only for purposes of visualizing the openings accessed If fracture of the frangible regions, and it will he recognized that: the inner joining region of tongue member 74 remains firmly and securely attached to head member 80, and is merely displaced allowing a fluid-flow access to die openings noted. Thus, Fig, 31 is for illustrative purposes only and does not reflect a separation.
Additional: fracture anvil embodiments are shown in Figs. 33 and 34. In these embodiments, the truncated cylinder anvils 76-2; and 76-3 unlike .fracture anvil 76-1, retain their outer surface cylindrical envelopes. Like fracture anvil 76-1, these anvils· each have an inclined flat top face 132 and a flat bottom face 179, To provide: flow from: the inclined top face to the flat bottom face side of the fracture anvils, gutter-like flow channels 133 are formed in the cylindrical, periphery of each anvil, these flow channels 133 extending, front the inclined top lace 132 to the flat, bottom lace 179. Fracture anvil 76-2 has one flow channel or relatively large cross section area, whereas, fracture anvil: 76-3 has plural, L e,, three flow channels each of smaller cross section area but in total about the· same as the cross section area of fracture anvil 76-2. The flow channels 133 juxtapose with the inner encircling periphery of the stem piece and provide ample artery volume to insure proper fluid flow to the absorbent applicator 63
An important consideration in the dispensing applicator is (a) complete filling ©f container 70 during manufacture to' ensure maximum supply and (b) avoidance of cmiamlnaiion of the fluid contents in the container 70 both as to at initial filling of disinfectant and medicaments therein and as to post filling handling and storage until rued to use. It will be recognized by those of skill in the art, that achieving (a) will eliminate air pockets prior to use that will impact contamination in (b), In this regard aid with continuing reference to. Figs, 29 and 30» ihe: container 70 of dispensing applicator 60-2 is provided at its first or filling end with a capping assembly 240 (as shown) that includes a closure cap 241 having a central disc part 243 and an axially directed peripheral skirt 242 encircling the outer surface of the container 70 at its first erd. The first end tip part of container 70 has a radially inwardly directed annular flange 244 defining a central opening 245 (See Fig. 30) in the container tip end. A boss 248 projects axially from the inner face of central disc part 243 and with the cap in place on the container first end, the boss 24§ will locate a distance through central opening 243 upon assembly. The capping assembly also includes a, e.g., foil material gasket 250 constructed: from a suitable material which is used to intervene the inner side of the closure cap 241 and the first end face, i.e., the annular flange 244 outer face of the container 70.
Fig, 30 depicts the manner of container filling, A filling line 252 (shown as: a tube) in the sterile filling operation environment delivers disinfectant, or medicament fluid as discussed herein of any suitable kind through central opening 245 into the container until there is overflow of fluid at which point the filling is terminated. Gasket 250 Is then set on top of the outer face of flange 244, the gasket being of larger area expanse than flange 244 and makes liquid contact for sealing purposes, Further, gasket 250 is selected from materials which are liquid proof, stretchable or deformable to a certain degree so that when closure cap 241 is fitted over the first end of the container sandwiched between the elosure cap inner face and the outer face of flange 244, an air tight joint seal of the eontainer is effected without a bubble, since the gasket materia! will conform io the sandwiching- structure in intimate contact therewith. Fig. 29 illustrates this clearly and employs a formed main tube body 70 having only smaller opening 245. it is also to be noted from Fig. 29 that fluid fills the first end of the container 70 and is in air excluding contact with the gasket, and the apparent fluid gap in Fig. 29 is employed only to show depth of the fluid and not the existence of an unfilled portion of the tube. This arrangement assures absence of any possible contaminants-containing air within the container. It is preferred that, the closure cap 241 ones in place be not removable- from the container. This can be effected by sonic welding or other attachment means of the closure cap to the container and optionally of the foil closure itself, if it is thought expedient for any reason, the cap: can he removably snap fitted to the container. For example, an annular groove in. one of the structure inner skirt surface and outer surface of the container, and an annular bead on the other of said surfaces will allow removal the closure cap but only with deliberately Intended such action.
Referring now additionally to Figs. 38-40, an.-alternative construction is provided at. a dispenser system 500 containing a head member 501 secured to a dispensing fluid container 502 and surrounded by a foam dispersing member 50$. constructed id. a manner previously discussed. As earlier noted, flow shields and flow control devices may be particularly useful in preventing unintended fluid release, fluid spill back during application (from buildup within foam dispersing member 503} etc.
Similarly, a flexible tip or tongue member 505 is joined with reinforcing members 508 (shown in the first figure) joined to fracture member 506 on head member 501 so that the fracture about the stressed areas earlier noted (see for example Fig, 3C at 12, the discussion of Fig. 5A and the related discussions of flexible fracture upon movement of the tongue member while retaining and preventing separation of the tongue member) is directionally out the only side that .fractures - that facing the application surface as seen by flows in Fig. 39. As a consequence, fluid flow's 510 from the fracture or opening site may approach an application surface 511 upon actuation. &amp;%at is additionally appreciated here, is that, dual surfaces of foam member 503 is mbsimnially beneficial for- the reasons noted above, A flexible plastic card 525 is flexibly retained and fixed In foam applicator head )03 proximate fracture member 506 as shown, Card 525 is formed of a thin, flexible and fluid resistant (impermeable or semi-permeable) material (like a playing card), and «eludes preferably a plurality of peripheral protuberances or indentations 526 that •«tgage the foam or sponge bead to prevent lateral or longitudinal shifting relative to the fracture location for reasons that will be discussed. As will he appreciated, the protuberances 526, spikes, detents or other structures or chemical means (such as glue about the perimeter) may be employed to minimize or prohibit shifting of card shield 525 during manufacture or use applications.
Card 525 includes a bounded opening or slot 528 that is approximately 0,25 laches to approximately 0,75 inches in height and sufficiently wide to span the full width of tongue member 505 and the: connection: with fracture member 506 so as to position itself as shown generally in Fig, 39.
As an adaptive embodiment the fluid exiting slot on the inferior side of the sponge extends almost the full width of card 525 for a speedy delivery of fluid while protecting the superior side of the sponge from, unintended fluid dispersal or pooling. As noted earlier, during surgical preparation a sterile prep item may not be used again on the same patient following an initial removal as a consequence, the present embodiment minimizes loss or waste by preserving, a second foam side or superior foam side for second use by the same applicator. As a consequence, as noted in Fig. 39 fluid flow Is to the inferior portion of the sponge and directly applies to the contact surface and flows between the contact surface 511 and the surface of card 535 for distribution without penetrating card 525 to translate to the superior portion of the sponge. This action retains the superior side of the sponge in a substantially or completely dry condition for later sterile use (which may be achieved by merely flipping the applicator wer to the superior side and proceeding as discussed above and demonstrated in the Sgures.
Another alternative embodiment of the dispensing applicator In accordance with the present invention is depicted in Figs. 41-44, With, reference thereto. Figs. 41:A~C show different views of the alternative embodiment of a mounting block for a fluid dispensing applicator according to the invention which receives an absorbent applicator t a block bottom side. In particular, as shown, the dispensing applicator comprises a counting block 550 having a base piece 552, a bottom side skirt part to which is affixed a© absorbent sponge type applicator (see Fig. 43), and a stem piece 554 upstanding from base piece 552.. An absorbent swab may optionally be carried: at an adjacent side of the mounting block 550 (see Figs. SA-B, 1IA-B mid 12-13), for which purpose the mounting block 550 includes a counting bracket (e.g., similar to that shown in Fig. IS) receptive of a skirt piece to which the absorbent swah is affixed. Optionally, mounting block §50 may include projections 558 to aid in rotating mounting block 550 about the axis of stem piece 554 as indicated by arrow 556 to cause fracture of tongue 505 and fracture member 506 (see Fig. 40) while tongue 505 (see pig. 40) is positioned within fracture anvil 560 (see Fig. 41C).
Stem piece 554 is preferably a tubular component and its interior space is in communication with the interior space of base piece 552 (see Fig. 4IB), the last mentioned space nutletting to absorbent applicator 548 so that a flow course in the mounting block 550 has inlet in the stem piece 554 and outlet at applicator 548, An. elongated fluid container 574 (see Fig. 43) is attachable to the mounting block 550, an end of the container being received in stem piece 554.
Referring in more detail to Figs. 41 A~C and 43-44, container 574 which is of tubular configuration Is capped at a first end as at 576. At a distal opposite end length, an attachment member 568 has a length portion received inside the container 574, and the length portion being affixed to the container as, for example, by heat sealing or snap fit. The length portion optionally has a flange 572 thereon and a continuing length portion constituting a frangible section, this section transitions into a tongue element 570. The juncture of the tongue element 570 and the continuing length portion defines a weakened joinder location at which the fracture and at least partial separation of the tongue element 570 from the frangible section will occur, enabling outletfing of fluid from container 574.
Referring now to Fig. 42A, shown is a perspective view of an alternate embodiment of a fracture anvil for being removably inserted in an applicator mounting block part of the applicator head, the: fracture anvil having a partial cruciform, partial semi-circular passage for reception of the fluid source container tongue element, the fracture anvil being employed to effect partial fracture of; the frangible region-tongue element joinder on a relative rotatable movement between said container and said fracture anvil. Fig. 42B shows a cross-section view of the fracture anvil taken on the line 42B-42B of Fig. 42A,
Turning to Figs. 42A-B, depicted is yet another embodiment of a fracture amdl 566 for use with the dispensing applicator according to the invention. The fracture anvil 560 shown has a partial cruciform, partial semi-circular passage 562 extending therethrongh, as well as a number of fluid pass-through passages ibr enabling fluid released on fracture to flow toward absorbent applicator 548.
When, the second opposite end of the container 574 is Inserted into the stem piece 554, the tongue element 570 is aligned such that it will enter and locate in the vertical cross passage part of partial ernciform, partial semi-circular passage 562, the fracture anvil 560 having been inserted in the bore of the stem piece 554. The second opposite end of the container 574 is snap fit connected to the stem piece 554. The arrangement is such that with flange 572 received in annular internal groove in the: stem piece (see e.g., Fig. 21), the tongue element 570 is properly positioned in the vertical cross passage part Ibr effecting fracture.
External dimensioning of the annular flange and Internal groove is such that the eontainer 574 can he rotated relative to the fracture anvil 560 while the fracture anvil 560 is held in position. This approximately forty-five degree rotation, of the eontainer 574 is; effective to twist part of the tongue element 570 at tile weakened joinder location, .fracturing, a portion of it and effecting, at least partial separation from attachment member 568; With this fracture,, fluid releases from the container 574 into the mounting block 550 through course. deferring next to Fig, 43, shown is an. exploded left front side perspective view of still another embodiment of a dispensing applicator according to the invention wherein a fluid containing source 574 Is receivably attachable to an applicator mounting body stem piece 554 in snap fit. connection therewith. Initiation of fluid flow is then effectuated with a relative rotative movement, as indicated by arrow 556, between the fluid" source container 574 and a fracture anvil (see Fig, 44} in the stem piece 554 of mounting block 550. The first end 176 of container 574 has a central, opening. A capping assembly Is releasahly attached to the opening at end 576. The capping assembly afro includes a, e,g.s foil material gasket 582 constructed from a suitable material which is hsed to intervene the inner side of the closure cap 584 and the annular flange 578 which has a bore 580 therethrough. Gasket 582 is set on top of the outer face of flange 578, the gasket preferably being of larger area expanse than flange 578 and makes liquid contact for sealing purposes. Further, gasket 582 Is selected from materials which are liquid proof stretchable or deformable to a certain degree so that when closure cap 584 is titled over the first end of the container sandwiched between the closure cap inner face and the outer face of flange 578, an air tight joint seal of the container is effected without a bubble, since the gasket material will conform to the sandwiching structure in intimate contact, therewith:.
As seen in Fig. 44, depicted is a cross-section view taken on the line 44-44 in FIO. 43 showing relative position of the tongue member 563 within the partial cruciform, partial semfreirooiar passage of the fracture anvil. Additionally, the fracture anvil has a number of fluid pass-through passages 561. for enabling fluid released on fracture to flow toward'· absorbent applicator 548,
Referring next to Fig. 45, shown is an exploded left front side perspective view if still another embodiment of a dispensing applicator wherein a Raid containing source 574 is reeeivably attachable to an applicator mounting body 588 in snap fit connection herewith, initiation of fluid flow being effected with a relative rotative movement 55b tetween the fluid source container 574 and a fracture anvil 560 (see Fig, 46) in the uounting body 588, and further showing a dye packet assembly 591 having top and tettom diffusers 506 each preferably with a spiral-like pathway 595 leading to openings 5?2 (for passage of the fluid) and a dye tablet 594. The embodiment of the di spensing applicator of Fig. 5 is similar with the applicator shown in Fig. 43 except wherein dye prcket assembly 591 is provided in the mounting body 588,
Referring next to Fig, 46, shown is a eross-seetioh view taken along the line 46-4$. of the applicator of Fig. 45 showing the partial eruciforni, partial semi-circular passage 562 of the fracture anvil 560. When assembled, as shown in Fig, 47, the assembled disprensirag applicator of Fig. 45 is closed at one end with cap 584 dud at the other end with the removable attachment of fluid source 574 into mounting block 588 tfspugh rotatable connector 586. As can be seen in Fig. 48, which shows a cross-section view of the assembled fluid dispensing applicator taken along the lino 48-48 in Fig, 47, dispensing applicator comprises a mounting block 588 having a base piece 597 with an opening 598 (Fig. 45) or plurality of openings 599 for passage of the fluid, a bottom side skirt part to which is affixed an absorbent sponge 590 and a stem piece. Optionally, (not shown here, but see Fig, 12), an absorbent swab may be carried at an adjacent side of the mounting. Mock, for which purpose the mounting block includes a mounting bracket (depicted to advantage in Fig. 18) receptive of a skirt piece to which swab is affixed.
Stem piece is preferably a tubular component and its interior space is in communication with the interior space of base piece (see e,g. Fig, 21), the last mentioned space outletting to absorbent applicator so that a flow course in the mounting block has inlet in the stem piece and outlet at applicator, An elongated fluid container S24 h aitacbahle to tie mounting block, an end of the container being received m stem piece. deferring next to. Figs. 49A-C, shown are. respectively, enlarged perspective, bottom and cross-section (taken along line 49C-49C of Fig, 49B) views of a preferred embodiment of a diffuser element 596 for tie dye packet assembly 5 91,
Turning next to Figs. SG-51, shown is an exploded left front side perspective view and a oross-sectianal view (taken along line :51-51 in Fig;. 50), respectively, of still another embodiment of a dispensing applicator according to tie invention wherein a fluid containing source 606 is receivably attachable to an applicator moimting body stem piece 604 in snap fit connection therewith, initiation of Bold flow being effected with a relative rotative movement (as indicated by arrow 620) between the fin id source sontainer 606 and a fracture anvil 631 in the mounting body. Figs. 52-53 depict a side wrspeetive view and cross-section view taken along line 53-53 in Fig, 52, respectively, sf the assembled fluid dispensing applicator «hown is Fig. 50,
Turning now to Figs.; 54A-D, sho wn is still another alternative embodiment of an rssembled dispensing applicator wherein a fluid containing source is receivably ntaehable to an applicator mounting body stem piece In snap fit connection therewith, initiation of fluid flow being effected with a relative downward movement between the fluid source container and a fracture member in the mounting body. Fig. 54B is an exploded left front side perspective view of the dispensing applicator shown in Pig. 54A wherein a fluid containing source is receivably attachable to an applicator mounting body stem piece in snap fit connection therewith, initiation of fluid flow being effected -with a relative downward movement between the fluid source container and a fracture member in the mounting body. Fig, 54C is a side cross-section view of the assembled dispensing applicator of Fig. 54A taken on the line 54C-54C, and Fig. 54D is a front cross-section view of the assembled dispensing applicator of Fig, 54A taken on the line 54D-54D,
Figs. 55~5? depict various views; of an embodiment of a fluid dispersing head for use with the fluid dispensing applicator according to the invention, In particular, Figs. 56C-Q, which are cross-sectional views of the: fluid dispersing head of Fig, 55 taken on the line S6€~S6€ in Fig. 56A and line 560-561) in Fig, 56B, further show the relative: position of an applicator tip member and fracture member within the fluid dispersing head.
Similarly, Fig. 58A-8 depict various views of an alternative embodiment of an applicator mounting block according to the invention having an opening on one side for the dispersing of fluid to only one side of a. fluid dispensing head. In particular. Fig. 58B shows no opening for dispersing fluid to the fluid dispersing head, while Fig. S&amp;D, which shows another side of the applicator mounting block, depicts an opening for dispersing of fluid to the fluid dispersing head. Of course, opening could be positioned on either side or even both sides of the applicator head. Lastly, Fig. 5SE shows a bottom end view of the applicator mounting block of Figs. 5SA-D and depicts the inclusion of the partial cmcifomt, partial semi-circular fracture anvil discussed in detail above.
While the present invention is primarily directed to a dispensing applicator for the application of liquids to the surface of the head, limbs, and/or body for medical purposes (i.e,, pre-surgicai disinfection), dispensing applicators according to the present invention may be used in a wide variety of purposes and environments. For example, a dispensing applicator according to the present invention can be used for application of lubrlcant(s) or adhesiveCs). The range of sines can also vary widely, as long as the several wall thicknesses are controlled appropriately to afford the desired functional characteristics discussed herein. It should also be appreciated by those of skill in the art that the fluid reservoirs, in selected embodiments, are flexibly bounded and allow an operator to control volumetric application based on the amount of pressure applied to the exterior of the reservoir. As a consequence of this design, it should also be recognized by those of skill in the art, that an operator releasing a compressed nservoirs, may partially suction released fluid back into the reservoir and minimise fooling.
In the claims* means- or step'-plus-function clauses are intended to cover the structures described or suggested herein as performing the recited function and not only structural equivalents bid aisfc equivalent: structures. Thus, for example,, although a tail, a,screw, and a bolt may not fee structural equivalents in that a nail relies on friction between, a wooden part and a cylindrical surface, a screw's helical surface positively eigages: the wooden part, and a holt's head and nut compress opposite sides of a voodoo, part, In the environment of iasieniBg wooden parts, a nail, a screw, and a holt nay fee readily understood fey those skilled in the art as equivalent structures.
It will he understood that the present invention may be embodied in other specific forms without departing from the spirit or central characteristics thereof! The present examples and embodiments, therefore, are to fee considered in all respects as illustrative and not restrictive, and the invention is not to fee limited to the details given hire! n.

Claims (10)

  1. CLAIMS:
    1. A dispensing applicator comprising a frangible applicator tip, said frangible dispensing applicator further comprising: (a) an attachment member removably connected to a hand-held fluid source; (b) a substantially rigid tongue element extending outwardly from the attachment member into a mounting block having a fluid-absorbent member and wherein said rigid tongue element has side edges and a central portion; (c) a frangible region between the attachment member mounting block and said substantially rigid tongue element whereby intentional breaking of said frangible region allows partial fluid release proximate through at least one of at least two apertures formed at a nexus with said frangible region; and (d) a fracture anvil receivable in said mounting block, said fracture anvil embodying fluid flow through-passage means, a relative movement between said fracture anvil and said fluid source while maintaining engaging contact of said tongue element with said fracture anvil being effective to fracture said frangible region without separation thereby initiating fluid release from said fluid source to the fluid-absorbent member, wherein fracture of said frangible region is effected with relative rotatable movement between said tongue and said fracture anvil; wherein a first relative rotation of the fracture anvil and the tongue, in a first direction, of first number of degrees allows fluid release through a first of the at least two apertures; wherein a second relative rotation of the fracture anvil and the tongue, in a second direction opposite that of the first direction, of a second number of degrees allows fluid release through a second of the at least two apertures; wherein a third relative rotation of the fracture anvil and the tongue, in either the first or the second directions, of a third number of degrees allows fluid release through both of the at least two apertures; and wherein a portion of the tongue element that is positioned between the apertures remains secured to the attachment member when rotated.
  2. 2. The dispensing applicator according to claim 1, wherein said fracture anvil further comprises a partial cruciform and partial semi-circular passage passing therethrough in which said rigid tongue element locates with the mounting block, fracture of said frangible region being effected with relative rotatable movement between said tongue and said fracture anvil.
  3. 3. The dispensing applicator of either claim 1 or 2, wherein the rigid tongue element has side edges and is provided with the plurality of reinforcing ribs located between the side edges and configured to resist deflection, at least two of the plurality of reinforcing ribs each being disposed along a respective one of the side edges.
  4. 4. The dispensing applicator of claim 3, wherein at least a portion of the plurality of reinforcing ribs each is approximately 3 times thicker than the frangible region.
  5. 5. The dispensing applicator of claim 3, wherein the rigid tongue element has side edges and a central portion and is provided with the plurality of reinforcing ribs located between the side edges and configured to resist deflection, a pair of the plurality of reinforcing ribs each being disposed along a respective one of the side edges and at least additional two ribs flanking the central portion.
  6. 6. The dispensing applicator of claim 3, wherein the rigid tongue element has side edges and a central portion and is provided with the plurality of reinforcing ribs located between the side edges and configured to resist deflection, the plurality of ribs being non-uniformly dimensioned and having at least one pair of relatively long ribs each extending along a respective one of the side edges and at least one relatively short rib disposed along the central portion.
  7. 7. The dispensing applicator of claim 3, wherein the rigid tongue element has side edges and a central portion and is provided with the plurality of reinforcing ribs located between the side edges and configured to resist deflection, the plurality of ribs being non-uniformly dimensioned and having at least two relatively long ribs disposed along each side edge and at least one pair of relatively short ribs flanking the central portion.
  8. 8. The dispensing applicator of any one of the preceding claims, further comprising a semi-permeable or non-permeable cover substantially surrounding the frangible region to control the speed and direction of dispersion of fluid into the fluid-absorbent member.
  9. 9. The dispensing applicator of claim 8, wherein the cover comprises a rearward edge attached to said attachment member and a forward free edge.
  10. 10. The dispensing applicator of any one of the preceding claims, wherein the fluid-absorbent member further comprises a body defining a fluid conduit, an absorbent applicator member in fluid communication with the fluid conduit, and an absorbent swab member separate from the absorbent applicator member.
AU2013308838A 2012-08-31 2013-08-28 Dispensing applicator for fluids Ceased AU2013308838B2 (en)

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US13/601,755 US9220881B2 (en) 2005-05-26 2012-08-31 Dispensing applicator for fluids
US13/601,755 2012-08-31
PCT/US2013/057017 WO2014036100A1 (en) 2012-08-31 2013-08-28 Dispensing applicator for fluids

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3315164T3 (en) * 2015-06-25 2023-11-06 Otsuka Pharma Factory Inc Applicator for medical-use liquids
DE102018205105A1 (en) * 2018-04-05 2019-10-10 B. Braun Melsungen Ag Medical application arrangement for applying a liquid to a skin surface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6533484B1 (en) * 2001-09-13 2003-03-18 Allegiance Corporation Solution applicator
US20040240927A1 (en) * 2003-06-02 2004-12-02 Hoang Minh Quang Patient preparatory applicator with a back plug activator
US20060269355A1 (en) * 2005-05-26 2006-11-30 Kaufman Jack W Dispensing applicator for fluids
US20110142527A1 (en) * 2007-04-26 2011-06-16 Biomed Packaging Systems Inc. Dispensing applicator for fluids

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288159A (en) * 1992-12-04 1994-02-22 Minnesota Mining And Manufacturing Company Liquid applicator with frangible ampoule and support
US6991394B2 (en) * 2003-01-10 2006-01-31 Medi-Flex, Inc. Liquid applicator with a mechanism for fracturing multiple ampoules
US7540681B2 (en) * 2004-10-04 2009-06-02 3M Innovative Properties Company Surgical prep solution applicator
US8083425B2 (en) 2005-05-26 2011-12-27 Biomed Packaging Systems Inc. Dispensing applicator for fluids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6533484B1 (en) * 2001-09-13 2003-03-18 Allegiance Corporation Solution applicator
US20040240927A1 (en) * 2003-06-02 2004-12-02 Hoang Minh Quang Patient preparatory applicator with a back plug activator
US20060269355A1 (en) * 2005-05-26 2006-11-30 Kaufman Jack W Dispensing applicator for fluids
US20110142527A1 (en) * 2007-04-26 2011-06-16 Biomed Packaging Systems Inc. Dispensing applicator for fluids

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