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WO2013083964A1 - Cathéter - Google Patents

Cathéter Download PDF

Info

Publication number
WO2013083964A1
WO2013083964A1 PCT/GB2012/052996 GB2012052996W WO2013083964A1 WO 2013083964 A1 WO2013083964 A1 WO 2013083964A1 GB 2012052996 W GB2012052996 W GB 2012052996W WO 2013083964 A1 WO2013083964 A1 WO 2013083964A1
Authority
WO
WIPO (PCT)
Prior art keywords
lumen
catheter
distal portion
locking mechanism
flexible
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/GB2012/052996
Other languages
English (en)
Inventor
John Norman WALTERS
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.)
Kimal PLC
Original Assignee
Kimal PLC
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 Kimal PLC filed Critical Kimal PLC
Publication of WO2013083964A1 publication Critical patent/WO2013083964A1/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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • 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
    • A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
    • 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
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M2025/0163—Looped catheters
    • 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
    • A61M25/0097—Catheters; Hollow probes characterised by the hub
    • 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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains

Definitions

  • the present invention relates to catheters, in particular to catheters for draining fluids from a body cavity or injecting fluids into a body cavity.
  • Catheters may be used for the drainage of fluids from body cavity or injecting fluids into a body cavity.
  • catheters comprise a single lumen coupled to one or more holes in a distal portion. The catheters are guided into the correct position, where fluids drain through the holes into the catheter lumen and then out of the body, or drain through the catheter into the body cavity.
  • catheters also comprise deformable distal portions that may be deformed into, for example, a pigtail configuration to aid the drainage or injection of fluids.
  • the distal portions are often deformed by the use of a flexible filament, such as a suture, that is threaded through the drainage/injection lumen from the operator's end of the catheter to the distal portion. By pulling on an end of the suture, the distal portion may be deformed.
  • the present invention provides a catheter for draining fluids from a body cavity or for injecting fluids into a body cavity, comprising: a flexible catheter sleeve; a releasably deformable distal portion connected to the catheter sleeve; a first lumen for receiving a fluid, the first lumen extending through the flexible catheter sleeve and deformable distal portion; a first hole in the distal portion in fluid communication with the first lumen; a second lumen for receiving a flexible filament, the second lumen extending through the flexible catheter sleeve and deformable distal portion, and the second lumen being separate from the first lumen; a second hole adjacent the distal end of the distal portion and connected to the second lumen; a third hole connected to the second lumen; and a flexible filament having a first end anchored adjacent a proximal end of the flexible catheter sleeve and a second free end, the flexible filament extending from the anchored end through
  • threading the suture through a separate, second, lumen means that there is no cross-leakage between the first (i.e. drainage/injection) lumen and the second (i.e. suture) lumen, thereby reducing the risk of the suture being contaminated by the fluid being drained from the body cavity or the suture contaminating the fluid being injected into the body cavity.
  • the catheter further comprises a plurality of holes in fluid communication with the first lumen for draining fluids from a body cavity or for injecting fluids into a body cavity. This enables a greater volume of fluid to be drained from the body cavity or injected into the body cavity.
  • the flexible filament is a suture.
  • the releasably deformable distal portion is releasably deformable into a pigtail configuration.
  • the pigtail configuration is a shape that is efficient for the removal of fluids from a body cavity or for injection of fluids into a body cavity.
  • the catheter comprises a releasable locking mechanism to releasably lock the second free end of the flexible filament in position.
  • the releasable locking mechanism comprises a clamping portion and a releasably moveable clamping device, and wherein the clamping device is releasably moveable to releasably clamp a portion of the flexible filament against the clamping portion when the locking mechanism is locked, and wherein the clamping device releases the flexible filament when the locking mechanism is unlocked.
  • the releasably moveable clamping device is slidably moveable against the clamping portion.
  • the locking mechanism comprises an inlet coupled to the second lumen for receiving the flexible filament into the locking mechanism.
  • the locking mechanism comprises a guide hole through which the second free end of the flexible filament is threadable to guide the second free end of the flexible filament.
  • the locking mechanism comprises a releasable locking member for locking the clamping device in position when the locking mechanism is locked.
  • the releasable locking member comprises a deformable protrusion arranged to abut a surface of the clamping device to prevent the clamping device from returning to position in which the locking mechanism is unlocked.
  • the abutted surface of the clamping device is a recessed surface.
  • the deformable protrusion is deformable so as to release the clamping device from the position in which the locking mechanism is locked.
  • the releasable locking mechanism is coupled to the proximal end of the catheter sleeve. Furthermore, a portion of the locking mechanism coupled to the catheter sleeve may be less flexible than the catheter sleeve.
  • the anchored end of the flexible filament is anchored adjacent the locking mechanism.
  • the present invention also provides a catheter for draining fluids from a body cavity or for injecting fluids into a body cavity, comprising: a flexible catheter sleeve; a releasably deformable distal portion connected to the catheter sleeve; a first lumen for receiving a fluid, the first lumen extending through the flexible catheter sleeve and deformable distal portion; a first hole in the distal portion in fluid communication with the first lumen; a flexible filament having a first end anchored adjacent a proximal end of the flexible catheter sleeve and a second free end, and extending through the first lumen to the distal portion; and a releasable locking mechanism to releasably lock the second free end of the flexible filament in position.
  • the catheter comprises: a second hole adjacent the distal end of the distal portion and connected to the first lumen; and a third hole connected to the first lumen, wherein the flexible filament extends from the anchored end through the first lumen towards the distal portion, exiting the first lumen via the second hole, entering the first lumen via the third hole and returning to the proximal end of the catheter sleeve via the first lumen, and wherein the flexible filament and second and third holes are arranged such that the distal portion is deformed when the free end of the flexible filament is pulled.
  • Figure 1 shows a catheter
  • Figure 2 shows a close-up of the distal portion of the catheter of Figure 1 ;
  • Figure 3 shows a cut-through view of the proximal end of the catheter of Figure 1 when the locking mechanism is in the unlocked position;
  • Figure 4 shows a cut-through view of the proximal end of the catheter of Figure 1 when the locking mechanism is in the locked position; and Figure 5 shows a see-through view of the proximal end of the catheter of Figure 1 .
  • the present invention provides a catheter having a first lumen for draining fluids from a body cavity or injecting fluids into a body cavity, and a separate, second lumen through which a flexible filament, such as a suture, is threaded.
  • the suture is anchored at the proximal end of the catheter, extends through the second lumen to the distal portion, exits and re-enters the second lumen via second and third holes respectively, and returns to the proximal end of the catheter, terminating in a free end.
  • the suture is threaded such that pulling on the free end deforms the deformable distal portion into a pigtail configuration.
  • the present invention also provides a catheter having a locking mechanism in which the flexible filament used to deform the deformable distal portion, such as a suture, may be locked in position.
  • the suture is clamped between a clamping portion and a clamping device to lock the suture in position.
  • Both of the above aspects may be used in isolation or in combination with one another. Preferably they are used in combination.
  • a catheter 1 comprising a flexible catheter sleeve 2, and a releasably deformable distal portion 3 connected to the catheter sleeve 2.
  • a first lumen 10 extends along the length of the catheter sleeve 2 and the distal portion 3.
  • the first lumen is coupled to at least one hole 6, here shown in the distal portion (although it is to be understood that additional holes may be provided along the length of the distal portion 3 and/or the catheter sleeve), which is configured to drain fluids from a body cavity into the first lumen, or to inject fluids into a body cavity from the catheter.
  • a second lumen 1 1 is also provided along the length of the catheter sleeve 2 and the distal portion 3.
  • the second lumen is configured to receive a flexible filament 4, such as a suture.
  • a second hole 7 is provided in the distal portion 3, and a third hole 8 is provided adjacent the distal portion 3.
  • Each of the second 7 and third 8 holes are connected to the second lumen 1 1 .
  • the suture 4 has a first, anchored end, which is anchored 16 within or to the catheter, and a second free end 5, which terminates in a suture handle.
  • the suture 4 extends from the anchored end 16 through the second lumen 1 1 , exits the second lumen via the first hole 7, re-enters the second lumen 1 1 via the third hole 8 and returns to proximal end of the catheter sleeve 2 via the second lumen 1 1 , terminating in the free end 5.
  • the distal portion 3 is formed of a material that is releasably deformable, and more flexible than the catheter sleeve, pulling on the free end 5 of the suture 4 enables the distal portion 3 of the catheter 1 to be releasably deformed.
  • the distal portion 3 may be deformed into a pigtail configuration. This configuration is useful, for example, during the drainage of fluids from a body cavity, or injection of a fluid into a body cavity once the catheter 1 is in place. Releasing the free end 5 of the suture 4 enables the distal portion 3 to relax into its original form for safe removal from a body cavity.
  • threading the suture 4 through a separate, second, lumen 1 1 means that there is no cross-leakage between the first (i.e. drainage/injection) lumen 10 and the second (i.e. suture) lumen 1 1 , which reduces the risk of the suture being contaminated by the fluid being drained from the body cavity or the suture contaminating the fluid being injected into the body cavity.
  • the catheter may also be provided with a locking mechanism 9, which is shown in the figures as a luer hub.
  • the locking mechanism 9 comprises a clamping portion 12, over which the free end 5 of the suture 4 may pass, and a clamping device 13.
  • the clamping device 13 is slideable on a rail across the surface of the clamping portion 12. Moving the clamping device 13 from the unlocked position (shown in figure 3) to the locked position (shown in figure 4) causes the suture 4 to be clamped between the clamping device 13 and the clamping portion 12. The frictional forces between these two surfaces and the suture 4 cause the suture to be locked in position.
  • the suture 4 reaches the clamping portion 12 via an inlet, which is coupled to the second lumen.
  • the inlet is coupled to the first lumen.
  • the locking mechanism 9 is also provided with a releasable locking member 14, which prevents the clamping device 13 from sliding accidentally from the locked to the unlocked positions.
  • the releasable locking member 14 comprises a deformable protrusion 14 that abuts a recessed surface of the clamping member 13 once the clamping member 13 is in the locked position. In order to release the clamping member 13 from its locked position, an operator must apply pressure to the protrusion in order to deform the protrusion so that the clamping member 13 may pass over the protrusion to reach the unlocked position.
  • the catheter 1 may also be provided with a guide hole 15, which may be used to guide the free end 5 of the suture 4 away from the catheter.
  • a tubing strain relief is provided adjacent the locking mechanism 9 to help prevent kinking of the tube at the hub.
  • the suture is anchored 16 at the same end of the catheter 1 as the locking mechanism 9.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • External Artificial Organs (AREA)

Abstract

La présente invention concerne des cathéters et, notamment, des cathéters de drainage de fluide hors d'une cavité de l'organisme ou d'injection de fluides à l'intérieur d'une cavité de l'organisme. Un cathéter (1), selon la présente invention, comporte une première lumière permettant de drainer des fluides hors d'une cavité de l'organisme ou d'injecter un fluide à l'intérieur d'une cavité de l'organisme et une seconde lumière, distincte, dans laquelle un filament souple (4), par exemple un fil de suture, est enfilé. Ledit fil de suture est fixé à l'extrémité proximale du cathéter, se prolonge à travers la seconde lumière jusqu'à l'extrémité distale du cathéter, sort et pénètre à nouveau dans la seconde lumière par des deuxième (7) et troisième (8) orifices pour retourner jusqu'à l'extrémité proximale du cathéter et se terminer par une extrémité libre (5). Le fil de suture est enfilé de façon à ce que, lorsque l'on tire sur l'extrémité libre, on déforme la partie distale déformable pour lui donner la forme d'une queue de cochon. La présente invention concerne également un cathéter comportant un mécanisme de verrouillage (9) dans lequel le filament souple utilisé pour déformer la partie distale déformable, par exemple un fil de suture, peut être maintenu en place. Le fil de suture est, de préférence, clampé entre une partie de clampage et un dispositif de clampage afin de le maintenir en place.
PCT/GB2012/052996 2011-12-05 2012-12-04 Cathéter Ceased WO2013083964A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1120797.4 2011-12-05
GB1120797.4A GB2497286B (en) 2011-12-05 2011-12-05 Catheter

Publications (1)

Publication Number Publication Date
WO2013083964A1 true WO2013083964A1 (fr) 2013-06-13

Family

ID=45509100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/052996 Ceased WO2013083964A1 (fr) 2011-12-05 2012-12-04 Cathéter

Country Status (2)

Country Link
GB (1) GB2497286B (fr)
WO (1) WO2013083964A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104225760A (zh) * 2014-10-08 2014-12-24 张西坤 一种引流管套组
CN105343990A (zh) * 2015-12-07 2016-02-24 湖北康泉医疗科技有限责任公司 带锁定装置可密闭循环冲洗的多功能引流导管
CN106730268A (zh) * 2016-12-30 2017-05-31 湖北康泉医疗科技有限责任公司 带锁定线系统双腔猪尾巴引流管

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10456565B2 (en) * 2015-01-13 2019-10-29 Cook Medical Technologies Llc Locking loop catheter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586923A (en) * 1984-06-25 1986-05-06 Cordis Corporation Curving tip catheter
US6508789B1 (en) * 2000-06-05 2003-01-21 Merit Medical Systems, Inc. Systems and methods for coupling a drainage catheter to a patient and decoupling the drainage catheter from the patient
US20050107739A1 (en) * 2003-11-17 2005-05-19 Angiodynamics, Inc. Locking catheter hub
US20060206096A1 (en) * 2005-03-11 2006-09-14 Accisano Nicholas G Iii Drainage catheter hub with welded suture and sidewall stylet
US20070032779A1 (en) * 2005-08-05 2007-02-08 Accisano Nicholas G Iii Drainage catheter with lockable hub
WO2009120518A2 (fr) * 2008-03-28 2009-10-01 Uresil, Llc Cathéter médical à blocage
WO2010062796A1 (fr) * 2008-11-26 2010-06-03 Cook Incorporated Mécanisme de verrouillage pour un cathéter
US20110098682A1 (en) * 2009-10-22 2011-04-28 Mahfuza Ahmed Locking Assembly for a Drainage Catheter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730724A (en) * 1995-11-24 1998-03-24 Manan Medical Products, Inc. Drainage catheter apparatus
US6454740B1 (en) * 2000-01-05 2002-09-24 Cook Incorporated Double-loop catheter
US7824367B2 (en) * 2005-08-17 2010-11-02 Merit Medical Systems, Inc. Drainage catheter with locking hub

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586923A (en) * 1984-06-25 1986-05-06 Cordis Corporation Curving tip catheter
US6508789B1 (en) * 2000-06-05 2003-01-21 Merit Medical Systems, Inc. Systems and methods for coupling a drainage catheter to a patient and decoupling the drainage catheter from the patient
US20050107739A1 (en) * 2003-11-17 2005-05-19 Angiodynamics, Inc. Locking catheter hub
US20060206096A1 (en) * 2005-03-11 2006-09-14 Accisano Nicholas G Iii Drainage catheter hub with welded suture and sidewall stylet
US20070032779A1 (en) * 2005-08-05 2007-02-08 Accisano Nicholas G Iii Drainage catheter with lockable hub
WO2009120518A2 (fr) * 2008-03-28 2009-10-01 Uresil, Llc Cathéter médical à blocage
WO2010062796A1 (fr) * 2008-11-26 2010-06-03 Cook Incorporated Mécanisme de verrouillage pour un cathéter
US20110098682A1 (en) * 2009-10-22 2011-04-28 Mahfuza Ahmed Locking Assembly for a Drainage Catheter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104225760A (zh) * 2014-10-08 2014-12-24 张西坤 一种引流管套组
CN105343990A (zh) * 2015-12-07 2016-02-24 湖北康泉医疗科技有限责任公司 带锁定装置可密闭循环冲洗的多功能引流导管
CN106730268A (zh) * 2016-12-30 2017-05-31 湖北康泉医疗科技有限责任公司 带锁定线系统双腔猪尾巴引流管

Also Published As

Publication number Publication date
GB2497286B (en) 2017-05-24
GB201120797D0 (en) 2012-01-11
GB2497286A (en) 2013-06-12

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