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WO2011044296A1 - Ensemble de prolongement extensible - Google Patents

Ensemble de prolongement extensible Download PDF

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Publication number
WO2011044296A1
WO2011044296A1 PCT/US2010/051709 US2010051709W WO2011044296A1 WO 2011044296 A1 WO2011044296 A1 WO 2011044296A1 US 2010051709 W US2010051709 W US 2010051709W WO 2011044296 A1 WO2011044296 A1 WO 2011044296A1
Authority
WO
WIPO (PCT)
Prior art keywords
adaptor
medical tube
catheter
extension set
length
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/US2010/051709
Other languages
English (en)
Inventor
Rafael V. Andino
Chris Brooks
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.)
Venetec International Inc
Original Assignee
Venetec International Inc
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 Venetec International Inc filed Critical Venetec International Inc
Publication of WO2011044296A1 publication Critical patent/WO2011044296A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1586—Holding accessories for holding infusion needles on the body
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/006—Catheters; Hollow probes characterised by structural features having a special surface topography or special surface properties, e.g. roughened or knurled surface
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M2025/0266—Holding devices, e.g. on the body using pads, patches, tapes or the like

Definitions

  • This invention relates to an extension set for connecting to a catheter or a medical line. More particularly, this invention relates to an expandable extension set having a variable length.
  • the catheter In intravenous applications, the catheter is generally short and includes a luer connector at one end that is designed for attachment to another medical line. Such a connector may also include a spin nut to lock the medical line to the catheter. In this way the same catheter may be connected to and released from different medical lines in order to exchange the medical lines without the need to introduce multiple intravenous catheters.
  • an extension set comprising a medical tube with a spin nut at one end can be connected to the catheter, so that the free end of the extension set can be attached to another medical line or system as desired, at a location further away from the insertion site than the catheter hub.
  • an extension set comprises a connector fitting, an adaptor, and a medical tube disposed between the connector fitting and the adaptor, the medical tube having an accordion-fold configuration so as to be extendable from a first length to a second length, the second length being longer than the first length.
  • a catheter system comprises a catheter hub, an adaptor, and a medical tube having an accordion-fold configuration and a first and second end, the medical tube being connected at the first end to the catheter hub and connected at the second end to the adaptor, the medical tube having a varying length between a collapsed position and an extended position.
  • a medical tube has an internal lumen for use with a catheter, and at least a portion of the medical tube has an accordion-fold configuration so as to be extendable from a first length to a second length, the second length being longer than the first length.
  • a method of starting a medical line in a patient comprises providing a catheter system comprising a catheter, a catheter hub, an adaptor, and a medical tube having an accordion-fold configuration and a first and second end, the medical tube being connected at the first end to the catheter hub and connected at the second end to the adaptor.
  • the method also comprises inserting the catheter in the skin of the patient at an insertion site and moving the adaptor away from the catheter hub by extending the medical tube from a collapsed position to an extended position.
  • FIGURE 1 is a perspective view of an extendable extension set according to a preferred embodiment of the present invention in a collapsed or shortened state.
  • FIGURE 2 is a perspective view of the extendable extension set of FIGURE 1, shown in an extended or lengthened state.
  • FIGURE 3 is a perspective view of the extendable extension set of FIGURE 1, shown in an extended or lengthened state and connected to an exemplary catheter secured in an exemplary retainer to a patient.
  • FIGURE 4 is a perspective view of a catheter having an integrated extendable extension set, according to another embodiment. The integral extension set is shown in a collapsed or shortened state and received within a handpiece.
  • FIGURE 5 is a perspective view of the integrated catheter and extendable extension set of FIGURE 4, shown in a collapsed state with the handpiece pulled away from the extension set.
  • FIGURE 6 is a perspective view of the integrated catheter and extendable extension set of FIGURE 4, shown apart from the handpiece and in a collapsed or shortened state.
  • FIGURE 7 is a perspective view of the integrated catheter and extendable extension set of FIGURE 4, shown in an extended or lengthened state and apart from the handpiece.
  • FIGURE 8 is a perspective view of the integrated catheter and extendable extension set of FIGURE 4, shown with the catheter portion inserted into a patient and secured to the patient's skin by a retainer, and with the extension set portion in an extended state with the handpiece removed.
  • an extension set can take to include various aspects and features of the invention.
  • Some of the illustrated embodiments are shown with either one or both of an illustrative example of a medical article, such as a catheter hub, and an illustrative example of a retainer configured to secure a medical article to the skin of a patient.
  • the illustration of the extension set in these contexts is not intended to limit the disclosed aspects and features of the invention to the specified embodiments or to usage only with the illustrated medical article or retainer.
  • extension sets which include one or more of the inventive aspects and features herein described can be designed for use with a variety of medical articles and/or retainers.
  • the preferred embodiments of the present invention advantageously provide an extension set having an extendable and or collapsible configuration that allows a healthcare provider to change the length of the extension set as desired for a particular application.
  • An extension set 100 according to an embodiment is illustrated in FIG. 1, which shows the extension set 100 in a shortened or collapsed configuration. At its proximal end, the extension set 100 includes a connector fitting 102 that is configured to connect to a hub of a catheter (not shown).
  • the connector fitting 102 has a generally elongated body that includes one or more radially-extending protrusions 106.
  • the radially-extending protrusions 106 in the illustrated embodiment comprise annular ridges, embodiments can also include one or more radially-extending protrusions that project from the elongated body at one or more discrete radial directions.
  • a male luer connector 108 is disposed at a proximal end of the connector fitting 102, along with a spin nut 110 which is rotatable about and slidable along at least a portion of the length of the elongated body of the connector fitting 102.
  • the extension set 100 includes an adaptor 112, which can comprise another connector fitting or other adaptor configured to connect to a corresponding fitting on a medical line, such as a fluid supply line.
  • the adaptor 1 12 comprises a female fitting 130 including radially-extending tabs 132.
  • the connector fitting 102 includes a flange 114 at its distal end which, in the fully collapsed position, abuts a corresponding flange 118 of the adaptor 112.
  • the connector fitting 102 and the adaptor 112 can include interengaging structures which, when in the collapsed configuration illustrated in FIG. 1, cooperate to releasably lock the two parts together and limit longitudinal separation of the connector fitting 102 and the adaptor 112.
  • the interengaging structures can include, for example, a radially-extending protrusion of the adaptor 112 and a thread on an inner surface of the connector fitting 102 configured to receive the radially-extending protrusion.
  • the interengaging structure is configured to release when the adaptor 112 is axially rotated by about 90° (as indicated by the arrow 113 in FIG. 1).
  • the adaptor 112 can include one or more axial protrusions or ridges 116 that extend for at least a portion of the length of the adaptor 112. Once the interengaging structure is released, the adaptor 112 can be moved in a longitudinal direction (as indicated by the arrow 115) relative to the connector fitting 102.
  • FIG. 2 illustrates the extension set 100 in a lengthened or extended position, with a medical tube 120 having an accordion-like configuration extending between the connector fitting 102 and the adaptor 112.
  • the medical tube 120 has a lumen which is in fluid communication with a lumen of the connector fitting 102 and with a lumen of the adaptor 112.
  • the medical tube 120 Prior to being extended, the medical tube 120 is in a collapsed, shortened configuration and is housed, partially or entirely, in an inner channel of the connector fitting 102 and/or an inner channel of the adaptor 112.
  • FIG. 3 illustrates the extension set 100 in an extended position and connected to an exemplary catheter hub 122, which is secured in an exemplary securement device 124 including a retainer 126.
  • the accordion-shaped medical tube can comprise any suitable material with any suitable configuration that gives it sufficient rigidity to avoid occlusion of its lumen when bent, stretched, or pressed upon, while retaining its shape when in a collapsed configuration or when pulled into an extended configuration, and sufficient flexibility to allow a healthcare provider to easily pull on an end of the tube and lengthen it from a collapsed to an extended position.
  • the tube can be configured to be extendable, but not collapsible, so that the tube can be lengthened but not shortened.
  • the tube can be configured to be both extendable and collapsible so that a healthcare provider can lengthen or shorten the tube as desired, before or after connection to a medical line.
  • embodiments of the invention allow a healthcare provider to easily adjust the length of the set to meet the requirements of a particular application, without resulting in excessive loose tubing that might interfere with medical procedures or patient movement, and which would otherwise require securement.
  • the accordion-fold configuration of embodiments also provides a more easily manipulated medical tube, which can be bent and guided in desired directions and thereby avoid interference with medical procedures or patient movement.
  • FIG. 4 illustrated a catheter system 200 comprising a catheter 202 having an integral extendable extension set 204 (shown in hidden lines in FIG. 4).
  • the system 200 includes a handpiece 206 having an inner receptacle configured to receive at least a portion of the extendable extension set 204.
  • the catheter 202 includes a hub 208 having a generally elongated body with radially-extending protrusions or ridges 210.
  • the ridges 210 can be configured to cooperate with corresponding structure of a retainer to secure the hub 208 against the skin of a patient and inhibit longitudinal, lateral, and/or transverse movement of the hub 208.
  • the hub 208 abuts against a surface of an elongated housing 212 that surrounds a medical tube 214 (not visible in FIG. 4) having an accordion-fold configuration in a collapsed or compressed state.
  • the distal end of the housing 212 is connected to an adaptor 216, which can be configured as desired to connect to a variety of medical articles, including other connector fittings, syringes, fluid supply lines, and the like.
  • the hub 208 can include a radially-extending tab 218 which cooperates with a corresponding slot 220 in the handpiece 206 to prevent axial rotation of the handpiece 206 with respect to the hub 208, at least when a force is applied to push the handpiece 206 in the proximal direction and engage the tab 218 in the slot 220.
  • the handpiece 206 also includes one or more contoured surfaces 222a, 222b to facilitate proper gripping of the handpiece 206. By such a configuration, the handpiece and the hub can cooperate to assist a healthcare provider in handling and placing the catheter system 200 in a patient, while avoiding accidental release and/or extension of the extension set 204.
  • the handpiece 206 can also include an internal receptacle for retracting and receiving a needle after insertion of the catheter 202 into the patient.
  • the handpiece 206 including the retracted needle can be separated and removed from the extension set 204 by simply pulling the handpiece 206 back in a distal direction. Removal of the handpiece 206 exposes the housing 212 and the adaptor 216 of the extension set 204. After removal of the handpiece 206, the extension set 204 remains in a collapsed configuration, with interengaging structure securing the longitudinal position of the housing 212 with respect to the hub 208.
  • FIGS. 6 and 7 when a healthcare provider decides to extend the extension set 204, he or she can rotate the housing 212 and/or the adaptor 216 by about 90° (see arrow 224 in FIG. 6) to release the interengaging structure that, in the collapsed and locked position, secures the longitudinal position of the housing 212 with respect to the hub 208. The healthcare provider can then pull back on the housing 212 and/or the adaptor 216 (in the direction indicated by the arrow 226 in FIG. 6) to release the medical tube 214 from within the housing 212 and extend it to the desired length (see FIG. 7).
  • the medical tube 214 is connected to the hub 208 at a shaft portion 228 that extends in a distal direction from the hub 208.
  • the hub 208 includes a radially-extending flange 230. In the collapsed position illustrated in FIG. 6, the shaft portion 228 of the hub 208 cooperates with an inner surface of a receiving channel in the adaptor to resist bending of the extension set 204 (including the housing 212 and the adaptor 216) with respect to the hub 208.
  • the flange 230 cooperates with a corresponding surface of the housing 212 (such as a proximally-facing surface of the housing 212 or of the tab 218) to prevent advancement of the housing 212 in a proximal direction over or past the hub 208.
  • a lumen of the medical tube 214 is in fluid communication with a lumen of the catheter 202, so as to allow fluid to flow freely from the medical tube 214 into the catheter 202 in both the collapsed and extended configurations.
  • FIG. 8 illustrates the catheter system 200 in place on a patient's hand, with the extension set 204 in an extended position, and with the hub 208 secured in an exemplary securement device 234 including a retainer 232.
  • the retainer 232 includes a channel sized to receive at least a portion of the elongated body of the catheter hub 208, as well as ridges 236 that cooperate with the ridges 210 on the hub 208 to inhibit motion of the hub 208 in lateral, longitudinal, and transverse directions.
  • a healthcare provider can insert the catheter 202 into the patient's vasculature at an insertion site, with the catheter system 200 in a collapsed or compressed state, using known procedures. For example, prior to insertion, a needle, stylus, or trocar can be slidably received within a portion or portions of the catheter and then removed after the medical line has been inserted into the patient's vasculature.
  • the catheter is primed with sterile fluid to ensure the flow of fluid through the system.
  • the healthcare provider can release the catheter system 200 from its collapsed state and extend the length of the medical tube 214 to the extent desired.
  • the healthcare provider can also connect the adaptor 216 to a fluid supply line.
  • the healthcare provider can also use the securement device 234 to secure at least a portion of the catheter system 200 relative to the patient.
  • an extension set having a user- variable length allowing a healthcare provider to adjust the length of the set as needed for a particular application.
  • an extension set having an accordion-shaped foldable configuration provides a length of medical tubing that can be guided in particular curvatures or directions in order to avoid interference with other medical articles, with other medical procedures, or with patient movement.
  • an expandable and/or collapsible medical tube having an accordion-fold configuration can be incorporated into an extension set along with a wide variety of medical articles, such as connector fittings, catheters, hubs, catheter adaptors, medical tubing, and/or fluid supply lines, or a combination of one or more such medical articles, alternatively or in addition to the illustrated fittings, adaptors, hubs, and medical lines, in order to provide an extension set particularly adapted for the intended application.
  • Embodiments of the invention can also be adapted for use with a variety of medical articles and a wide variety of medical procedures.
  • an extendable extension set can form a component of a medical line extension system, catheterization system, or securement system that includes one or more medical articles, such as connector fittings, catheters, hubs, catheter adaptors, fluid supply lines, or other articles suitable for connecting fluid pathways and/or connecting medical articles and/or medical lines together.
  • medical articles such as connector fittings, catheters, hubs, catheter adaptors, fluid supply lines, or other articles suitable for connecting fluid pathways and/or connecting medical articles and/or medical lines together.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne un ensemble de prolongement comportant un tube médical présentant une forme en accordéon qui permet à un prestataire de soins médicaux d'allonger et/ou de raccourcir le tube comme requis pour une application particulière. L'ensemble de prolongement comporte des premier et second articles médicaux aux première et seconde extrémités du tube médical. Les premier et second articles médicaux peuvent inclure, par exemple, un ou des accessoires de connecteur, des embases de cathéter, et des adaptateurs; à l'état raccourci (affaissé), au moins une partie du tube médical peut être renfermée dans un boîtier faisant partie de l'ensemble de prolongement.
PCT/US2010/051709 2009-10-06 2010-10-06 Ensemble de prolongement extensible Ceased WO2011044296A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24922309P 2009-10-06 2009-10-06
US61/249,223 2009-10-06

Publications (1)

Publication Number Publication Date
WO2011044296A1 true WO2011044296A1 (fr) 2011-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/051709 Ceased WO2011044296A1 (fr) 2009-10-06 2010-10-06 Ensemble de prolongement extensible

Country Status (1)

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WO (1) WO2011044296A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112439105A (zh) * 2019-08-28 2021-03-05 贝克顿·迪金森公司 导管系统
US20210299403A1 (en) * 2020-03-31 2021-09-30 Becton, Dickinson And Company Pediatric catheter system and related devices and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185151A (en) * 1962-06-19 1965-05-25 Sorenson Res Corp Catheter placement unit
US3703174A (en) * 1970-07-14 1972-11-21 Medidyne Corp Method and apparatus for catheter injection
US4327723A (en) * 1980-05-13 1982-05-04 Arrow International, Inc. Catheter shield
US4664661A (en) * 1984-08-17 1987-05-12 E. R. Squibb & Sons, Inc. Modified accordion flange
US4854349A (en) * 1987-04-28 1989-08-08 Dennis Foreman Sewage draining device for recreational vehicles or the like
US5149326A (en) * 1990-09-21 1992-09-22 Baxter International Inc. Adjustable catheter contamination shield
US20080287862A1 (en) * 2007-05-18 2008-11-20 Boston Scientific Scimed, Inc. Drive systems and methods of use

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185151A (en) * 1962-06-19 1965-05-25 Sorenson Res Corp Catheter placement unit
US3703174A (en) * 1970-07-14 1972-11-21 Medidyne Corp Method and apparatus for catheter injection
US4327723A (en) * 1980-05-13 1982-05-04 Arrow International, Inc. Catheter shield
US4664661A (en) * 1984-08-17 1987-05-12 E. R. Squibb & Sons, Inc. Modified accordion flange
US4854349A (en) * 1987-04-28 1989-08-08 Dennis Foreman Sewage draining device for recreational vehicles or the like
US5149326A (en) * 1990-09-21 1992-09-22 Baxter International Inc. Adjustable catheter contamination shield
US20080287862A1 (en) * 2007-05-18 2008-11-20 Boston Scientific Scimed, Inc. Drive systems and methods of use

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112439105A (zh) * 2019-08-28 2021-03-05 贝克顿·迪金森公司 导管系统
US11660423B2 (en) * 2019-08-28 2023-05-30 Becton, Dickinson And Company Catheter system with extendable extension tube
CN112439105B (zh) * 2019-08-28 2025-05-27 贝克顿·迪金森公司 导管系统
US20210299403A1 (en) * 2020-03-31 2021-09-30 Becton, Dickinson And Company Pediatric catheter system and related devices and methods
CN113456985A (zh) * 2020-03-31 2021-10-01 贝克顿·迪金森公司 小儿导管系统以及相关的装置和方法
WO2021202165A1 (fr) * 2020-03-31 2021-10-07 Becton, Dickinson And Company Système de cathéter pédiatrique
JP2023520011A (ja) * 2020-03-31 2023-05-15 ベクトン・ディキンソン・アンド・カンパニー 小児用カテーテルシステムおよび関連機器および方法
US11883608B2 (en) 2020-03-31 2024-01-30 Becton, Dickinson And Company Pediatric catheter system and related devices and methods

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