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WO1992020281A1 - Dispositif de prelevement de sang - Google Patents

Dispositif de prelevement de sang Download PDF

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Publication number
WO1992020281A1
WO1992020281A1 PCT/DK1992/000162 DK9200162W WO9220281A1 WO 1992020281 A1 WO1992020281 A1 WO 1992020281A1 DK 9200162 W DK9200162 W DK 9200162W WO 9220281 A1 WO9220281 A1 WO 9220281A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
holder
finger grip
shield
blood taking
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
PCT/DK1992/000162
Other languages
English (en)
Inventor
Stig Eric Weibel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1992020281A1 publication Critical patent/WO1992020281A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • A61B5/150656—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496—Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150885—Preventing re-use
    • A61B5/150916—Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150885—Preventing re-use
    • A61B5/150923—Preventing re-use by means for destroying components or parts, e.g. by cutting or piercing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150305—Packages specially adapted for piercing devices or blood sampling devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058—Joining techniques used for protective means
    • A61B5/150587—Joining techniques used for protective means by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694—Procedure for removing protection means at the time of piercing
    • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3228—Constructional features thereof, e.g. to improve manipulation or functioning the needle being retracted by a member protruding laterally through a slot in the barrel, e.g. double-ended needles

Definitions

  • the invention relates to a blood taking device of the kind set forth in the introductory clause of claim 1.
  • Such devices are usually made from plastic materials (apart from the needles).
  • plastic materials as an example of a material, which is widely used in the medico-plastic industry owing to its favourable hygienic and envi ⁇ ronmental properties, polypropylene may be mentioned.
  • a blood taking device of the kind referred to is known from PCT/DK88/00186, published on 18th May 1989 under publication number WO 89/04141.
  • the finger grip element comprises a resilient tongue formed in the wall of the holder and carrying both the finger grip and the locking nose.
  • the locking nose engages the first and the second widened slot, respectively, from inside under the influence of the resiliency of the tongue, and can be pressed inwardly out of this engagement by depressing the finger grip, which can thereafter be freely retracted or advanced along the length of the longitudinal slot of the shield.
  • the device is delivered by the manufacturer with the finger grip in the holding position and with the resilient tongue flush with the wall of the holder.
  • the operator takes the device in his hand, depresses the finger grip and advances it to the blood taking position.
  • the tongue assumes an inwardly bent position, and when the locking nose arrives at the location of the first widened slot, and the operator lifts his finger from the finger grip, there is a risk that the tongue will not spring back fully to its original position flush with the wall of the holder.
  • the front end of the tongue will assume a position inside the circumference of the wall of the holder. This may give rise to serious difficulties when a sampling tube is later to be introduced into and pressed home in the holder. It is the object of the invention to provide a device of the kind referred to, in which the drawback described above is avoided without requiring the use of plastic materials having a particularly high degree of elasticity, or of supplemental spring means embedded in the resilient finger grip element.
  • a blood sampling tube can always be slid smoothly into the holder and further forwards to an end position in which its front end closure is pierced by the rear needle, and moreover, since the resilient elements activating the locking nose are located outside the shield, there is a considerable freedom to design these elements in such a manner as always to preserve a satisfactory resiliency of these elements for proper function, even if they are made from a plastic material having a relatively poor degree of elasticity.
  • Fig. 1 shows a device according to a first embodiment of the invent- ion, as viewed in vertical section, with the finger grip in the blood taking position,
  • FIG. 2 a similar view of the same device with a screwed-in double needle and with the finger grip set free by finger pressure
  • Fig. 3 a similar view of the same device with a blood sampling tube in position for blood taking
  • Fig. 4 a similar view of the same device with a blood sampling tube of a different type in position for blood taking
  • FIG. 5 a similar view of the same device with the finger grip in an intermediate position between the blood taking position and the holding position
  • Fig. 6 a top view corresponding to Fig. 5,
  • Fig. 7 a vertical section through the same device with the finger grip in the holding position
  • Fig. 8 a vertical section through the same device, but with the finger grip in the definitive locking position
  • Fig. 9 a vertical section through the holder alone, with screwed-in double needle
  • Fig. 11 a vertical section through a device according to a second embodiment of the invention, with the holder in an intermediate position
  • Fig. 12 a longitudinal section through a standard sterilized double needle that may be used for the devices of Figs. 1-10 and 11,
  • Fig. 13 a vertical section through a device according to a third embodiment of the invention, with the finger grip in the holding position,
  • Fig. 14 the device of Fig. 13 with the finger grip in the definitive locking position
  • Fig. 15 a vertical section through a device according to a fourth embodiment of the invention, with the finger grip in the definitive locking position, and
  • Fig. 16 a section along the line XVI-XVI in Fig. 15.
  • the blood taking device illustrated in Figs. 1-10 has a substantial- ly cylindrical needle holder 1 with an inner space 2 which is open at its rear end for receiving an evacuated blood sampling tube, and is closed by a bottom 3 at its front end.
  • the holder 1 In front of the bottom the holder 1 has a solid tapering portion 5.
  • an undercut recess 3a In the bottom 3 there is formed an undercut recess 3a that may be used for the fixation of a reduction holder for receiving sampling tubes having a smaller diameter than that for which the device is primarily designed, or the fixation of other auxiliary equipment.
  • the holder 1 is slidably mounted in a cylindrical safety shield 4 which is open at its rear end, and at its front end has a tapering wall portion 9 within which the tapering portion 5 of the holder fits in the front ost position of the holder.
  • the cylindrical wall of the holder is unbroken and directly carries a resilient finger grip 13 comprising a stem 73 which extends out through a longitudinal slot 15 of the shield 4 and outside the shield carries a forwardly directed tongue 74 and a rearwardly directed tongue 75, the outer faces of which are shaped for engage ⁇ ment by a finger for retracting and advancing the finger grip 13 along the slot 15.
  • Both tongues have a width exceeding that of the slot 15 and are resiliently urged towards the shield from 4 outside.
  • the forwardly directed tongue 74 has on its underside a locking nose 76, which is likewise wider than the slot 15, but is engageable in a first and a second widened portion 19 and 20, respectively, of the slot, in the following referred to as widened slots, thereby defin ⁇ ing an advanced blood taking position and a retracted holding position, respectively, of the finger grip 13 and thereby of the holder 1.
  • widened slots a first and a second widened portion 19 and 20, respectively, of the slot
  • the solid end portion 5 of the holder 1 has a hole 71 with an internal thread 72 for screwing in a sterilized standard double needle 6,7 with a pierceable and self-closing bag-shaped membrane 21 in well-known manner.
  • the device of Figs. 1-10 can advantageously be used in the following manner.
  • the device is delivered with the finger grip in the holding position (Fig. 7), but without a screwed-in double needle.
  • the finger grip 13 When the device is to be made ready for use, the finger grip 13 is set free by pressing the rearwardly directed tongue 75 and is advanced to the blood taking position (Fig. 1), and a sterilized double needle 6,7 is screwed in in well-known manner.
  • the needle which has just been screwed in is immediately stuck into a vein of the patient, and an evacuated blood sampling tube 22, Fig. 3, or 51, Fig. 4, is intro ⁇ quizd through the open end of the shield 4 and pushed forwards into the holder and pressed home to an end position in which its end closure is pierced by the rear needle 7, while the bag-shaped membrane 21, after having been pierced first, is axially compressed into accordion-like folds around the rear needle 7, as illustrated in Figs. 3 and 4. Now blood is sucked from the vein into the sampl ⁇ ing tube 22, 51 under the influence of the vacuum therein.
  • the finger grip 13 is tilted free (Fig. 2) and retracted to the holding position (Fig. 7) and remains there, until blood taking is to be performed. It is then again advanced to the blood taking position (Figs. 3 and 4), and blood taking is commenced in the same manner as described above. In the meantime the front needle 6 has been held in a shielded position within the safety shield 4.
  • the device is constructed for receiving two different well-known types of blood sampling tubes, viz. a tube 22, Fig. 3, with an end closure in the form of a pierceable and self-closing stopper 23 having a recess 24 in its front end, and a tube 51, Fig. 4, having an end closure in the form of a metal foil 53 glued to a collar 52 at the front end of the tube and provided at its middle with a pierceable pad 54 of self-locking membrane material, such as natural rubber.
  • the latter type of sampling tube could not be pressed home against the bottom 3 of the inner space 2 of the holder 1, because the metal foil 53 would then be destroyed by the compressed bag-sha ⁇ ped membrane 21.
  • the wall of the holder is therefore constructed with an annular shoulder 55, against which the collar 52 can be pressed.
  • the wall of the holder is constructed with a slightly protruding, flatly rounded internal bead 56 behind the position occupied by the collar 52 in the blood taking position.
  • the tube 22 or 51 is ready for analyzing or testing the blood sample by well-known methods.
  • the bag-shaped membrane 21 expands to its original shape and is automatically re-closed. If a further sample is to be taken from the same vein, a new sampling tube is pushed into and pressed home in the holder 1 and is again extracted when the new sample has been taken. This procedure can be repeated any number of times, until the desired number of samples has been taken from the same vein.
  • the finger grip is retracted to the holding position and remains there until the device has been brought into position above a standard tool for unscrewing the needle above a waste container.
  • the device can thereafter be made ready for use in the same manner as previously described.
  • PCT/DK88/00186 discloses how a definitive locking in a further retracted position can be obtained by means of recesses in the wall of the holder and corresponding locking hooks on the inner wall of the shield. Definitive locking means of this or similar kind could also be used in combination with the novel finger grip structure of the present invention. However, the invention also provides for definitive locking means, by which a considerably increased safety is obtained in the disposal of the device, such as will be apparent from the following description.
  • the shield 4 has a third widened slot 77 at the end of the longitu ⁇ dinal slot 15 extending beyond the second widened slot 20.
  • the rearwardly directed tongue 75 has at least at its rear end a width such that it cannot engage the second widened slot 20.
  • the third widened slot 77 is wider than the first and second widened slots 19,20, and its front edge is so located that in the holding position the end of the rearwardly directed tongue 75 can be receiv ⁇ ed in the slot with the tongue 75 in a substantially relaxed state, as illustrated in Fig. 7.
  • the finger grip 13 When the device is to be finally disposed of, the finger grip 13 is retracted beyond the holding position, and by finger pressure on the forwardly directed tongue 74 the finger grip 13 is tilted inwards, so that the rearwardly directed tongue 75 is pressed inwards through the third widened slot to a shielding position behind the rear needle 7, as illustrated in Fig. 8, while at the same time an abutment 78 on the stem 73 is brought into definitive locking engagement with the front edge of the third enlarged slot 77 from below.
  • the device is now secured against re-use, and both the front needle 6 and the rear needle 7 are fully encapsulated, so that the device can be dropped into a waste container or bag without any risk of spreading infection.
  • FIG. 11 differs from that of Figs. 1-10 in that the front end of the shield is constructed with a cylindrical extension 81 having an inner diameter sufficiently great for permitting the front cap 87 of a standard sterilized double needle to be pushed in through the cylindrical extension 81.
  • a standard sterilized double needle such as delivered by the manufacturer, is illsutrated in Fig. 12. It consists of a front needle 6 and a rear needle 7 forming a unit which is fixedly mounted in a hub 83 having a forwardly directed hexagonal head 84 and rearwardly of that an externally threaded portion 85 and an extension 86 on which a bag-shaped membrane 21 is held in position by its elasticity so as to form an enclosure around the rear needle, as previously explained.
  • the double needle 6,7 is encapsulated in a sterile manner between a front cap 87 with an internally hexagonal head 88 frictionally engaged with the hexagonal head 84 of the hub 83, and a rear cap which is frictionally engaged with the rear end of the front cap and rests against an annular projection 90 of the front cap.
  • the device of Fig. 11 can be used in exactly the same manner as that of Figs. 1-10, but it can also be used under more primitive condit ⁇ ions where an unscrewing tool with associated waste container is not available.
  • the finger grip 13 is advanced to the blood taking position.
  • the rear cap 89 is pulled off and put aside for easy retrieval, and the rear needle with the surrounding bag-shaped membrane 21 is introduced through the cylindrical extension 81 of the shield 4 and pushed further rearwards until the external thread 85 of the hub 83 meets the front end of the internally threaded hole of the holder.
  • the needle assembly is then screwed home by turning the front cap 87, which is still accessible in front of the shield. Thereafter the front cap 87 is pulled off the hexagonal head 84 and out of the shield 4 and is put aside for easy retrieval, so that the front needle is now denuded in its advanced position and the device is thus ready for blood-taking. If the device is not to be used immediately, the finger grip 13 may in the meantime be retracted to the holding position where the front needle 6 is protected against touching.
  • the finger grip 13 is moved to the holding position, if it is not already in that position.
  • the front cap 87 which was earlier put aside, is gripped and pushed in through the front end of the cylin ⁇ drical extension 81 of the shield so as to loosely surround the front needle 6.
  • the finger grip 13 is set free and is advanced to an intermediate position, corresponding to that illustrated in Fig. 11, where the front end of the holder 1 meets the rear end of the cap 87, and the front end of the latter still extends out of the front end of the shield extension 81.
  • the internally hexagonal head 88 of the front cap 87 is driven in on the hexagonal head 84 of the needle hub, as illustrated in Fig. 11.
  • the whole needle assembly including the rear needle 7 and the bag-shaped membrane 21 can now be unscrewed from the threaded hole at the front end of the holder and pulled out of the front end of the shield 4.
  • the rear cap 89 which was earlier put aside, can be re-applied around the rear needle 7 and the membrane.
  • the double needle 6,7 is no longer sterile, but since it is entirely encapsulated between the front and rear caps, it can safely be dropped into a waste container or bag.
  • Figs. 13 and 14 differs from that of Figs. 1-10 in that the double needle 6,7 is fixedly mounted in the solid front portion 5 of the holder 1.
  • the struc ⁇ tural arrangement and the operation of the holder, the finger grip and the shield are the same, and the parts are denoted by the same reference characters.
  • the front needle 6 of the device is enclosed in a needle sheath 40, which is connected with the holder 1 by the engagement of a rounded bead on an extension 42 of the holder 1 in a correspondingly rounded annular recess 43 in the wall of the needle sheath 40 close to its rear end.
  • the head 41 and the recess 43 form a snap-lock, that can be broken by an energetic pull.
  • the needle sheath 40, the needle 6,7, the bag-sha ⁇ ped membrane 21, and the holder 1 are sterilized, and the needle can thereby be maintained sterile during storage, transportation and handling right up to the moment when the needle is advanced to the blood-taking position and contact with the surrounding air is anyhow unavoidable.
  • the shield 4 is not to be sterilized, steriliza ⁇ tion costs are reduced, and it becomes redundant to pack each device in a sterile bag, whereby many practical advantages are obtained.
  • a number of devices can be packed tightly together in a box whereby shipment costs are considerably reduced. The same applies to space requirements for internal storage and transportation.
  • the user can take the device directly in his hand without first having to peel off a sterile bag, which is an irksome and time consuming step.
  • the needle sheath 40 is provided at its front end with a gripping portion 44 which in the holding position of the holder 1 (Fig. 13) extends out of the front end of the shield 4, while the front needle 6 itself is still located entirely inside the shield 4.
  • the user takes it in one hand without pressing the finger grip 13, and with his other hand grips the gripping portion 44 and pulls the needle sheath 40 out through the front end of the shield 4. This can be done without risk of touching the front needle 6, because the holder 1 is withheld in the holding position by the engagement of the locking nose 76 in the second widened slot 20.
  • the needle sheath 40 In the region inside the front end of the shield 4 the needle sheath 40 has a bead or collar 45 with a sloping front side and a steep rear side. This acts like a barb which permits extraction of the needle sheath through the front end of the shield, but prohibits re-insertion of the needle sheath. Thus, when the needle sheath 40 is present in correct position, this is the user's guarantee that the needle is sterile.
  • the colour of the gripping portion 44 extend ⁇ ing out of the holder may be utilized for indicating the needle dimension in accordance with an internationally standardized colour code system.
  • Figs. 15 and 16 corresponds to that of Figs. 13 and 14, but illustrates the additional feature of arranging the rearwardly directed tongue 75 in such a manner that when pressed inwards through the third widened slot 77, it will strike the rear end of the rear needle 7 so as to distort the rear needle 7 away from its axially aligned position.
  • the rearwardly directed tongue 75 may be constructed on its inner side with a rib-like projection 91, which will exert a direct perpendi- cular pressure on the needle 7.
  • the projection 91 is narrower than the longitudinal slot 15 of the shield 4, so that it will not interfere with the relaxed condition of the rearwardly extending tongue 75 in the holding position of the finger grip 13, cf. Figs. 7 and 13.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Un dispositif de prélèvement de sang comprend un support (1) d'aiguille cylindrique, portant ou conçu pour porter une double aiguille (6, 7), et monté coulissant dans un élément de protection et de sûreté (4). Un élément élastique (13) destiné à la préhension, est fixé à la paroi ininterrompue du support (1) d'aiguille et s'étend hors d'une fente longitudinale (15) de l'élément de protection (4). A l'extérieur de celui-ci, l'élément de préhension comporte des parties (74, 75) qui sont poussées de manière élastique de l'extérieur vers l'élément de protection (4), ces parties étant pourvues d'un bec de blocage (76) pouvant s'engager de l'extérieur dans une première fente élargie (19) et dans une seconde fente élargie (20) de l'élément de protection afin de définir respectivement une position de prélèvement où l'élément de préhension (13) est avancé, et une position de préhension où cet élément est en retrait. La fente longitudinale (15) s'étend en arrière au-delà de la fente élargie afin de permettre à l'élément de préhension (13) de reculer davantage vers une position de blocage définitive. De préférence, l'élément de protection (4) comporte une troisième fente (77) à travers laquelle une languette (75) de l'élément de préhension (13), dirigée vers l'arrière, peut être enfoncée vers une position de protection à l'arrière de l'aiguille postérieure (7) afin de fixer le dispositif en une position de blocage définitive. Dans un dispositif comportant une double aiguille fixe (6, 7), l'aiguille antérieure (6) peut être enfermée de manière avantageuse dans une enveloppe (40) pour aiguille, laquelle est reliée amovible à l'extrémité avant du support d'aiguille (1) de manière à éviter toute contamination.
PCT/DK1992/000162 1991-05-15 1992-05-14 Dispositif de prelevement de sang Ceased WO1992020281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK919/91 1991-05-15
DK91919A DK91991D0 (da) 1991-05-15 1991-05-15 Blodproevetagningsredskab

Publications (1)

Publication Number Publication Date
WO1992020281A1 true WO1992020281A1 (fr) 1992-11-26

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AU (1) AU1799492A (fr)
DK (1) DK91991D0 (fr)
WO (1) WO1992020281A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
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EP0698372A1 (fr) * 1994-08-18 1996-02-28 Becton, Dickinson and Company Porte-aiguille de sécurité pré-assemblé
US5569210A (en) * 1995-11-06 1996-10-29 Moen; Michael Multiple draw syringe
DE19645514A1 (de) * 1996-11-05 1998-05-14 Sarstedt Walter Geraete Verfahren und Vorrichtung zum Entsorgen der Kanüle einer Blutentnahmevorrichtung
EP1221302A3 (fr) * 2001-01-05 2002-07-17 Becton Dickinson and Company Ensemble aiguille
JP3325558B2 (ja) 2000-06-06 2002-09-17 呉順 黄 針筒を具えた安全注射器
WO2002062223A3 (fr) * 2001-02-05 2002-12-27 Sherwood Serv Ag Dispositif de prelevement de fluide
WO2004030539A1 (fr) * 2002-10-02 2004-04-15 Greiner Bio-One Gmbh Dispositif de reception pourvu d'un element de recouvrement ajustable
EP1442706A1 (fr) 2003-01-31 2004-08-04 Sarstedt AG & Co. Dispositif de prélèvement sanguin avec un support comportant une canule
EP1570784A1 (fr) * 2004-03-02 2005-09-07 Ming-Jeng Shue Dispositif médical de prélèvement de sang avec une canule rétractable
WO2005089650A1 (fr) * 2004-03-17 2005-09-29 Sarstedt Ag & Co. Dispositif de prelevement d'echantillons de sang pour nouveaux nes et jeunes enfants
AU2004202203B2 (en) * 2003-11-07 2006-06-15 Deborah Huang Cannula retractable medical collection device
US7294118B2 (en) 2001-10-24 2007-11-13 Becton, Dickinson And Company Retractable needle assembly
WO2008107199A1 (fr) * 2007-03-07 2008-09-12 Novo Nordisk A/S Aiguille à rétraction
WO2008146033A1 (fr) * 2007-05-25 2008-12-04 Iden Shams Aiguille de sécurité
US8632503B2 (en) 2008-03-13 2014-01-21 Becton, Dickinson And Company Safety pen needle assembly having shielding for patient and non-patient ends
US8801673B2 (en) 2008-03-13 2014-08-12 Becton Dickinson & Company Safety pen needle assembly having shield for non-patient end
US9623194B2 (en) 2013-12-10 2017-04-18 Becton, Dickinson And Company Passive safety pen needle assembly
US9642971B2 (en) 2008-03-13 2017-05-09 Becton, Dickinson And Company Safety needle assembly
US9649452B2 (en) 2013-12-10 2017-05-16 Becton, Dickinson And Company Active safety pen needle assembly

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Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5817065A (en) * 1994-08-18 1998-10-06 Becton, Dickinson And Company Pre-assembled safety needle holder
EP0698372A1 (fr) * 1994-08-18 1996-02-28 Becton, Dickinson and Company Porte-aiguille de sécurité pré-assemblé
US5569210A (en) * 1995-11-06 1996-10-29 Moen; Michael Multiple draw syringe
DE19645514A1 (de) * 1996-11-05 1998-05-14 Sarstedt Walter Geraete Verfahren und Vorrichtung zum Entsorgen der Kanüle einer Blutentnahmevorrichtung
DE19645514C2 (de) * 1996-11-05 2000-04-13 Sarstedt Ag & Co Verfahren und Vorrichtung zum Entsorgen der Kanüle einer Blutentnahmevorrichtung
US6096006A (en) * 1996-11-05 2000-08-01 Sarstedt Ag & Co. Blood-collection needle-disposal system
JP3325558B2 (ja) 2000-06-06 2002-09-17 呉順 黄 針筒を具えた安全注射器
US6659983B2 (en) 2001-01-05 2003-12-09 Becton Dickinson And Company Needle assembly
EP1221302A3 (fr) * 2001-01-05 2002-07-17 Becton Dickinson and Company Ensemble aiguille
CN1294877C (zh) * 2001-02-05 2007-01-17 舍伍德服务股份公司 液体收集器
US6595931B2 (en) 2001-02-05 2003-07-22 Sherwood Services Ag Fluid collection holder
WO2002062223A3 (fr) * 2001-02-05 2002-12-27 Sherwood Serv Ag Dispositif de prelevement de fluide
AU2002241847B2 (en) * 2001-02-05 2006-08-03 Cardinal Health 529, Llc Fluid collection holder
US7294118B2 (en) 2001-10-24 2007-11-13 Becton, Dickinson And Company Retractable needle assembly
WO2004030539A1 (fr) * 2002-10-02 2004-04-15 Greiner Bio-One Gmbh Dispositif de reception pourvu d'un element de recouvrement ajustable
US7521022B2 (en) 2002-10-02 2009-04-21 Greiner Bio-One Gmbh Receiving device comprising an adjustable covering element
AT413648B (de) * 2002-10-02 2006-04-15 Greiner Bio One Gmbh Aufnahmevorrichtung mit verstellbarem abdeckelement
EP1442706A1 (fr) 2003-01-31 2004-08-04 Sarstedt AG & Co. Dispositif de prélèvement sanguin avec un support comportant une canule
US7204813B2 (en) 2003-11-07 2007-04-17 Ming-Jeng Shue Cannula retractable medical collection device
AU2004202203B2 (en) * 2003-11-07 2006-06-15 Deborah Huang Cannula retractable medical collection device
EP1570784A1 (fr) * 2004-03-02 2005-09-07 Ming-Jeng Shue Dispositif médical de prélèvement de sang avec une canule rétractable
EP1829480A3 (fr) * 2004-03-02 2009-04-22 Ming-Jeng Shue Dispositif médical de prélèvement de sang avec une canule rétractable
CN100450439C (zh) * 2004-03-17 2009-01-14 萨斯特德特股份有限两合公司 用于新生儿和儿童的采血装置
WO2005089650A1 (fr) * 2004-03-17 2005-09-29 Sarstedt Ag & Co. Dispositif de prelevement d'echantillons de sang pour nouveaux nes et jeunes enfants
US8096958B2 (en) * 2004-03-17 2012-01-17 Sarstedt Ag & Co Blood-collection device for newborn babies and infants
WO2008107199A1 (fr) * 2007-03-07 2008-09-12 Novo Nordisk A/S Aiguille à rétraction
US9125601B2 (en) 2007-03-07 2015-09-08 Novo Nordisk A/S Back needle
JP2010519989A (ja) * 2007-03-07 2010-06-10 ノボ・ノルデイスク・エー／エス 後方針
WO2008146033A1 (fr) * 2007-05-25 2008-12-04 Iden Shams Aiguille de sécurité
US8801673B2 (en) 2008-03-13 2014-08-12 Becton Dickinson & Company Safety pen needle assembly having shield for non-patient end
US8632503B2 (en) 2008-03-13 2014-01-21 Becton, Dickinson And Company Safety pen needle assembly having shielding for patient and non-patient ends
US9162030B2 (en) 2008-03-13 2015-10-20 Becton, Dickinson And Company Safety pen needle assembly having shielding for patient and non-patient ends
US9642971B2 (en) 2008-03-13 2017-05-09 Becton, Dickinson And Company Safety needle assembly
US10322250B2 (en) 2008-03-13 2019-06-18 Becton, Dickinson And Company Safety needle assembly
US10398858B2 (en) 2008-03-13 2019-09-03 Becton, Dickinson And Company Safety needle assembly
US9623194B2 (en) 2013-12-10 2017-04-18 Becton, Dickinson And Company Passive safety pen needle assembly
US9649452B2 (en) 2013-12-10 2017-05-16 Becton, Dickinson And Company Active safety pen needle assembly

Also Published As

Publication number Publication date
AU1799492A (en) 1992-12-30
DK91991D0 (da) 1991-05-15

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