WO2013084945A1 - Cathéter d'aspiration - Google Patents

Cathéter d'aspiration Download PDF

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Publication number
WO2013084945A1
WO2013084945A1 PCT/JP2012/081516 JP2012081516W WO2013084945A1 WO 2013084945 A1 WO2013084945 A1 WO 2013084945A1 JP 2012081516 W JP2012081516 W JP 2012081516W WO 2013084945 A1 WO2013084945 A1 WO 2013084945A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
catheter
suction
suction catheter
catheter shaft
Prior art date
Application number
PCT/JP2012/081516
Other languages
English (en)
Japanese (ja)
Inventor
畑優
中川雄司
本間康之
Original Assignee
テルモ株式会社
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 テルモ株式会社 filed Critical テルモ株式会社
Publication of WO2013084945A1 publication Critical patent/WO2013084945A1/fr

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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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0082—Catheter tip comprising a tool

Definitions

  • the liquid absorbing portion may be configured to be foldable at least before the liquid is absorbed.
  • the suction catheter 10 includes a hollow catheter shaft 16 and a liquid absorbing portion 18 provided (attached) at the distal end portion of the catheter shaft 16.
  • the catheter shaft 16 is a long tube-shaped member constituting the main body portion of the suction catheter 10, and a liquid absorbing portion 18 is coupled to a distal end portion thereof, and a base end portion thereof is configured to be detachable from the suction device 14.
  • a connector 17 detachably attached to the connection port 15 of the suction device 14 is provided at the proximal end portion of the catheter shaft 16.
  • the suction device 14 may have any configuration as long as it can continuously generate a negative pressure in the lumen 16a of the catheter shaft 16.
  • the suction device 14 includes a vacuum generating means and a liquid recovery unit (container). It may be configured.
  • the vacuum generating means may be a vacuum pump or a pressurized air supply source and an ejector.
  • the liquid absorbing portion 18 is not limited to the two-layer structure, but may be a single-layer structure, a multilayer structure of three or more layers, and the inner side regardless of the single-layer structure or the multilayer structure. A configuration in which the pore diameter gradually decreases toward the surface may be employed. Or the liquid absorption part 18 should just be the structure which can move a liquid to radial direction.
  • the dimensions of the liquid absorbing portion 18 are determined according to the dimensions of the catheter shaft 16, but are preferably 0.1 to 10 cm in total length and 1 to 5 cm in outer diameter.
  • the liquid absorbing portion 18 preferably has a pore diameter of 20 to 2000 ⁇ m and a porosity of 25 to 98%.
  • the thickness in the radial direction of the cylindrical wall portion constituting the liquid absorbing portion 18 is preferably 1 to 100 mm.
  • the dimensions of the operation elongated body 28 are determined according to the dimensions of the catheter shaft 16, but it is preferable that the total length is 5 to 35 cm and the outer diameter is 1 to 20 mm.
  • the dimensions of the tube 26 are determined in accordance with the part of the living body where the suction catheter 10 is used, the dimension of the catheter shaft 16, the dimension of the operation elongated body 28, and the like. For example, the total length is about 1 to 34 cm.
  • the outer diameter is preferably 2 to 22 mm.
  • the suction catheter 10 to which the operation elongate body 28 is connected from the lumen of the sheath 40 or the port, the distal end portion (the liquid absorbing portion 18) thereof is near the cartilage 38, preferably Insert until the cell transplantation site 32 is located (see FIG. 5B).
  • the proximal end portion of the catheter shaft 16 is connected to the suction device 14 (see FIG. 1), and suction is started. Further, after removing the dissection device 34, the suction catheter 10 may be inserted using the port used for the insertion of the dissection device 34.
  • the suction catheter 10 specifically operates as follows.
  • the liquid absorber 18 is brought into contact with the liquid 42 in the knee joint (see FIG. 5B)
  • the liquid 42 is absorbed by the liquid absorber 18 due to the liquid absorbability of the liquid absorber 18.
  • the pore diameter of the liquid absorbing portion 18 is smaller toward the inner layer
  • the absorbed liquid moves toward the radially inner side of the liquid absorbing portion 18 by capillary action.
  • the liquid permeable portion 24 has fine pores 24 a, and the liquid in the inner peripheral portion of the liquid absorbing portion 18 is formed by the negative pressure in the lumen 16 a of the catheter shaft 16 under the action of the suction device 14.
  • the liquid absorption part 18 can always absorb a liquid.
  • the liquid absorbing portion 50 before absorbing the liquid, the liquid absorbing portion 50 can be contracted by folding as shown in FIG. 6A to reduce the outer diameter, and when absorbing the liquid, the liquid absorbing portion 50 expands as shown in FIG. 6B. It is configured. Even when the liquid absorbing portion 50 has a single-layer structure, the outer peripheral portion of the liquid absorbing portion 50 is formed in the same shape as the protrusion 56 described above, so that the structure can be folded as described above. Can do. In the case where the liquid absorbing portion 50 is configured with a multilayer structure of three or more layers, the outermost layer may be formed in the same shape as the above-described protruding portion 56.

Abstract

La présente invention concerne un cathéter d'aspiration (10) muni d'une tige (16) de cathéter creuse et d'une unité d'aspiration de liquide (18) comprenant un corps d'absorption de liquide poreux et flexible situé à une extrémité distale de la tige (16) de cathéter. L'unité d'aspiration de liquide (18) comprend une couche extérieure (20) et une couche intérieure (22) et a un diamètre de pore qui devient de plus en plus petit vers l'intérieur des couches, adoptant par conséquent une structure dans laquelle l'action capillaire génère une force qui déplace le liquide vers le côté de la tige (16) de cathéter.
PCT/JP2012/081516 2011-12-07 2012-12-05 Cathéter d'aspiration WO2013084945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011267425 2011-12-07
JP2011-267425 2011-12-07

Publications (1)

Publication Number Publication Date
WO2013084945A1 true WO2013084945A1 (fr) 2013-06-13

Family

ID=48574303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/081516 WO2013084945A1 (fr) 2011-12-07 2012-12-05 Cathéter d'aspiration

Country Status (1)

Country Link
WO (1) WO2013084945A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015032866A1 (fr) * 2013-09-06 2015-03-12 Medaxis Ag Pièce à main pour le nettoyage de plaies
JP2015211828A (ja) * 2014-04-14 2015-11-26 国立大学法人 岡山大学 溶質および／または溶媒の局所での浸透および拡散を制御する装置、システム、および方法
JP2016510632A (ja) * 2013-03-14 2016-04-11 ケーシーアイ ライセンシング インコーポレイテッド 多微孔質導管
EP4289369A1 (fr) * 2022-06-07 2023-12-13 Hunt Developments (UK) Ltd. Cathéter d'échantillonnage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10108832A (ja) * 1996-10-08 1998-04-28 Asahi Optical Co Ltd 医療用分泌物吸収具
JP2000279514A (ja) * 1999-03-29 2000-10-10 Yutaka Yoshino 腹腔内留置カテーテルの目詰まり防止キャップ
JP3689202B2 (ja) * 1996-10-11 2005-08-31 ペンタックス株式会社 医療用分泌物吸収具
JP2009082455A (ja) * 2007-09-28 2009-04-23 Ai Matsuo 手術用吸引管

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10108832A (ja) * 1996-10-08 1998-04-28 Asahi Optical Co Ltd 医療用分泌物吸収具
JP3689202B2 (ja) * 1996-10-11 2005-08-31 ペンタックス株式会社 医療用分泌物吸収具
JP2000279514A (ja) * 1999-03-29 2000-10-10 Yutaka Yoshino 腹腔内留置カテーテルの目詰まり防止キャップ
JP2009082455A (ja) * 2007-09-28 2009-04-23 Ai Matsuo 手術用吸引管

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016510632A (ja) * 2013-03-14 2016-04-11 ケーシーアイ ライセンシング インコーポレイテッド 多微孔質導管
WO2015032866A1 (fr) * 2013-09-06 2015-03-12 Medaxis Ag Pièce à main pour le nettoyage de plaies
CN105611954A (zh) * 2013-09-06 2016-05-25 美达克西斯股份公司 用于清洁伤口的手持件
US10987463B2 (en) 2013-09-06 2021-04-27 Medaxis Ag Handpiece for cleaning wounds
JP2015211828A (ja) * 2014-04-14 2015-11-26 国立大学法人 岡山大学 溶質および／または溶媒の局所での浸透および拡散を制御する装置、システム、および方法
US10272208B2 (en) 2014-04-14 2019-04-30 Acemedic Inc. Apparatus and system for controlling permeation and diffusion of solute and/or solvent locally
EP4289369A1 (fr) * 2022-06-07 2023-12-13 Hunt Developments (UK) Ltd. Cathéter d'échantillonnage

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