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WO2018150772A1 - Cathéter d'aspiration - Google Patents

Cathéter d'aspiration Download PDF

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Publication number
WO2018150772A1
WO2018150772A1 PCT/JP2018/000679 JP2018000679W WO2018150772A1 WO 2018150772 A1 WO2018150772 A1 WO 2018150772A1 JP 2018000679 W JP2018000679 W JP 2018000679W WO 2018150772 A1 WO2018150772 A1 WO 2018150772A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
tube
guide wire
catheter
blood vessel
Prior art date
Application number
PCT/JP2018/000679
Other languages
English (en)
Japanese (ja)
Inventor
翠翠 李
Original Assignee
株式会社カネカ
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 株式会社カネカ filed Critical 株式会社カネカ
Priority to CN201880011891.7A priority Critical patent/CN110300611B/zh
Priority to JP2018568043A priority patent/JP7023875B2/ja
Publication of WO2018150772A1 publication Critical patent/WO2018150772A1/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
    • A61M25/00—Catheters; Hollow probes

Definitions

  • the present invention relates to a suction catheter.
  • a treatment method in which a thrombus is aspirated and removed is effective as a treatment method when a stenosis or occlusion occurs in a blood vessel such as a blood vessel, or when a blood vessel is occluded by a thrombus.
  • a catheter used for such treatment is called a suction catheter.
  • a suction catheter In treatment using a suction catheter, a guide wire is used to guide the suction catheter to the vicinity of the site to be suctioned in the blood vessel.
  • a suction catheter usually has a suction lumen having a suction port for sucking a suction target, and a guide wire lumen for inserting a guide wire. Therefore, when the surgeon inserts the suction catheter into the blood vessel and guides it to the target site for suction in the blood vessel, first, the operator inserts the guide wire into the blood vessel, and the distal end of the guide wire is the target site for suction. Hold in thrombus. Thereby, the route
  • the proximal side of the guide wire is passed through the distal end side of the guide wire lumen of the suction catheter, and the suction catheter is inserted into the blood vessel.
  • the suction catheter is moved in the blood vessel along the guide wire to reach the target site for suction, and the thrombus is sucked from the suction lumen. Therefore, the aspiration catheter is required to have reachability to a lesion site where a foreign object, which is a target to be suctioned, and suction performance for sucking as much of the target as possible.
  • Examples of conventional suction catheters include the suction catheters described in Patent Documents 1 and 2.
  • the suction catheter disclosed in Patent Document 1 has a configuration in which a suction port for sucking a suction target is formed to be inclined with respect to the axis of the suction lumen.
  • the suction catheter disclosed in Patent Document 2 has a configuration in which a distal end portion is curved.
  • the guide wire moves along the blood vessel wall, not the central portion of the blood vessel, and pierces the thrombus as the suction target site.
  • the distal end is retained by the thrombus.
  • the suction port of the suction catheter guided by the guide wire is often arranged close to the blood vessel wall and shifted from the center of the blood vessel. For this reason, when the suction operation is performed using the suction catheter, the thrombus in the vicinity of the suction port is satisfactorily sucked from the suction port.
  • An object of one embodiment of the present invention is to realize a suction catheter with improved suction performance of a suction target such as a thrombus.
  • a suction catheter is provided on the suction portion side of the first tube having a first lumen having a suction portion at a tip, and the first tube, A second tube having a second lumen through which the guide wire is inserted, wherein the suction part is a suction catheter having a suction port formed to be inclined with respect to an axis of the first tube, wherein the suction When the most distal end position in the section is the first position and the position farthest from the first position is the second position, at least the end portion on the suction port side of the second tube is curved toward the second position side It is characterized by having.
  • FIG. 6 is a front view showing a schematic configuration of the suction part of the suction tube as viewed from the distal end side along the long axis direction.
  • the aspiration catheter shows a state when it reaches a thrombus that is an object to be aspirated in the blood vessel
  • (a) is a cross-sectional view showing a schematic configuration when the aspiration catheter that is a premise of the embodiment of the present invention reaches the thrombus
  • (B) is a BB cross-sectional view of (a)
  • (c) is a cross-sectional view showing a schematic configuration when the suction catheter according to the embodiment of the present invention reaches a thrombus
  • (d ) Is a sectional view taken along the line CC of FIG.
  • the aspiration catheter which concerns on embodiment of this invention shows typically a mode that the blood vessel bent along a guide wire is moved
  • (a) is a case where the suction catheter contacts the blood vessel wall outside the bending part of the blood vessel. It is sectional drawing which shows a mode
  • (b) is a front view which shows the shape of the suction opening seen from the direction of the long axis in the state of (a)
  • (c) is a bent part of the blood vessel of the suction catheter It is sectional drawing which shows a mode in the case of contacting the blood vessel wall inside this
  • (d) is a front view which shows the shape of the suction opening seen from the direction of the long axis in the state of (c).
  • FIG. 1 shows a schematic configuration of an aspiration catheter 11 which is a premise of the present embodiment.
  • FIG. 1 (a) is a side view
  • FIG. 1 (b) is a sectional view.
  • the suction catheter 11 includes a suction tube 1 (first tube) constituting a suction lumen and a guide wire tube 2 (second tube) constituting a guide wire lumen.
  • a suction portion 3 is provided at the distal end of the suction tube 1.
  • the suction unit 3 has a suction port 3a for sucking a suction target such as a thrombus.
  • the suction port 3 a is provided to be inclined with respect to the axis of the suction tube 1.
  • the suction target side in the suction catheter is the distal end side or the distal side, and the opposite side is the proximal end side or the proximal side.
  • the guide wire tube 2 is provided on the suction part 3 side of the suction tube 1. Further, the distal end of the guide wire tube 2 is located on the distal side of the position 1 a on the most distal end side in the suction part 3. Moreover, the length of the guide wire tube 2 is 120 mm, for example.
  • the wall portion of the suction tube 1 has a laminated structure including an inner layer 12, a reinforcing layer 13, and a covering layer.
  • a fluorine-based resin or high-density polyethylene is used as the resin constituting the inner layer 12.
  • the resin constituting the inner layer 12 include polytetrafluoroethylene (PTFE), tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene / hexafluoropropylene copolymer (FEP), tetra Examples include fluoroethylene / ethylene copolymer (ETFE), polyvinylidene fluoride (PVDF), and polychlorotrifluoroethylene (PCTFE).
  • PTFE polytetrafluoroethylene
  • PFA perfluoroalkyl vinyl ether copolymer
  • FEP tetrafluoroethylene / hexafluoropropylene copolymer
  • ETDFE fluoroethylene / ethylene copolymer
  • PVDF polyvinylidene fluoride
  • PCTFE polychlorotrifluoroethylene
  • the reinforcing layer 13 has a braided shape in which strands are alternately knitted in a mesh shape.
  • Examples of the material of the strands of the reinforcing layer 13 include synthetic fibers such as nylon fibers, and metals such as Ti-Ni and stainless steel.
  • the covering layer 14 is a layer that covers the inner layer 12 and the braided reinforcing layer 13.
  • An elastomer is used as the resin constituting the coating layer 14.
  • Specific examples of the resin constituting the coating layer 15 include polyamide elastomer, polyester elastomer, polyolefin elastomer, and the like.
  • FIG. 2A is a diagram for explaining the relationship between the position 1a and the position 1b, and shows a schematic configuration of the suction part 3 of the suction tube 1 viewed from the distal end side along the long axis direction. It is a front view.
  • the suction tube 1 constitutes a suction lumen 1A (first lumen)
  • the guide wire tube 2 constitutes a guide wire lumen 2A (second lumen).
  • the tip position on the most distal end side in the suction port 3a of the suction unit 3 is defined as a position 1a (first position), and a position farthest from the position 1a is defined as a position 1b (second position).
  • the position 1a adjacent to the guide wire tube 2 is arranged at the most blood vessel wall side in the suction port 3a.
  • the position 1b is arranged at a position farthest from the blood vessel wall.
  • the position 1a is the upper side
  • the position 1b is arranged on the lower side. A portion between the position 1b and the position 1a is inclined upward from the position 1b toward the position 1a which is the tip position. If the position 1a is a nose, the position 1b can be regarded as a jaw.
  • the suction force at the position 1b in the suction port 3a is the largest. .
  • the position farthest from the position 1a will be described in more detail with reference to FIG.
  • the “position farthest from the position 1a” is considered based on the shape of the suction port 3a when the suction part 3 of the suction tube 1 is viewed from the distal end side as shown in FIG. That is, “the position farthest from the position 1a” means that a straight line connecting the position 1a and the arbitrary position P of the wall constituting the suction port 3a in the shape of the suction port 3a shown in FIG.
  • the position where the length D of the straight line is the longest. In the shape shown in FIG. 2B, the length Dm when the straight line connecting the position 1b and the position 1a is drawn is the longest.
  • the suction port 3 a is formed in the suction portion 3 of the suction tube 1 so as to be inclined with respect to the axis X.
  • the suction part 3 has a position 1a that is a position on the most distal end side and a position 1b that is a position on the most proximal end side. Therefore, it can be said that the positions 1a and 1b are the most distal end position and the most proximal end position of the suction part 3, respectively.
  • the suction catheter 10 has a curved portion 4 whose distal end is curved, as shown in FIG.
  • the bending portion 4 has a configuration in which at least the end portion on the suction portion 3 side (that is, the distal side) is bent toward the position 1b side.
  • the shape of the side wall constituting the suction port 3a (hereinafter simply referred to as the shape of the suction port 3a) is a substantially perfect circle shape. .
  • the bending portion 4 is configured to be curved so as to intersect the axis X of the suction tube 1.
  • the intersection point 4a is arranged at least on the distal end side from the position 1b.
  • the angle formed between the straight line connecting the position 1a and the position 1b and the axis X is preferably 5 degrees to 45 degrees, and more preferably 7 degrees to 30 degrees. .
  • the suction catheter 10 shown in FIG. 2A has a natural configuration in which the guide wire is not inserted into the guide wire tube 2.
  • the suction catheter 10 having the curved portion 4 in such a natural state has a shape that follows the shape of the guide wire that moves along the blood vessel wall when the guide wire is inserted into the guide wire tube 2.
  • FIG. 3 shows a state when the suction catheter reaches a thrombus as a suction target in the blood vessel.
  • FIG. 3A is a cross-sectional view showing a schematic configuration when the suction catheter 11 which is a premise of the present embodiment reaches a thrombus.
  • FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3A of FIG.
  • FIG. 3C is a cross-sectional view showing a schematic configuration when the suction catheter 10 according to the present embodiment reaches a thrombus.
  • FIG. 3D is a cross-sectional view taken along the line CC of FIG.
  • the guide wire 5 moves along the blood vessel wall in the blood vessel 6. Then, when the distal end of the guide wire 5 is hooked on the thrombus 6A, which is a site to be aspirated, a route by the guide wire 5 for the suction catheter 10 or 11 to reach the thrombus 6A is secured.
  • the suction catheter 10 or 11 is inserted into the blood vessel along the guide wire 5 by passing the guide wire 5 through the guide wire lumen.
  • the blood vessel wall on the side close to the guide wire tube 2 is the upper blood vessel wall 6c
  • the blood vessel wall on the opposite side is the lower blood vessel wall 6b.
  • the distal end portion of the guide wire 5 (for example, a portion of about 15 cm from the distal end to the proximal end side) is more flexible than the proximal end portion so that the blood vessel is not damaged.
  • the guide wire 5 becomes more flexible as it goes toward the distal end.
  • the guide wire tube 2 follows the shape of the guide wire 5 passing through the guide wire tube 2. Further, when the suction catheter 10 or 11 moves along the distal end portion of the guide wire 5, the guide wire 5 is flexible, so that the followability of the shape of the guide wire tube 2 with respect to the guide wire 5 is far away. It becomes smaller as it goes to the end. For example, a portion of 3 cm from the distal end of the guide wire 5 has flexibility such that the shape of the guide wire 5 follows the shape of the guide wire tube 2.
  • the suction tube 1 moves along the guide wire 5 and reaches the thrombus 6A. 1b is positioned from the lower vessel wall 6b at a distance D 2 apart level P 2.
  • the portion of the guide wire 5 on the distal end side near the thrombus 6A is flexible, the followability of the shape of the guide wire tube 2 with respect to the guide wire 5 becomes smaller toward the distal end. Since the suction catheter 10 has the bending portion 4 at least in the guide wire tube 2, the state in which the action of the guide wire 5 following the shape of the bending portion 4 and the action of the bending portion 4 following the shape of the guide wire 5 are antagonized.
  • the distance D 2 between the position 1b and the lower blood vessel wall 6b in aspiration catheter 10 is smaller than the distance D 1 of the the position 1b and the lower blood vessel wall 6b in the suction catheter 11. For this reason, according to the suction catheter 10 according to the present embodiment, the performance of sucking the thrombus 6A attached to the lower blood vessel wall 6b is improved.
  • the thrombus 6A contains a fibrous material. For this reason, when the suction force with respect to the thrombus 6A attached to the lower blood vessel wall 6b is insufficient, the relatively large thrombus 6A is sucked from the suction port 3a while being dragged by the fiber. Therefore, the suction tube 1 may be blocked by the large thrombus 6A. In contrast, in the aspiration catheter 10, the suction force it is possible to reduce the distance D 2 between the highest position 1b and the lower vessel wall 6b, sufficient to finely divided thrombus 6A including fibrous A suction force can be realized. Therefore, the suction tube 1 can be prevented from being blocked by the thrombus 6A.
  • the bending portion 4 may be bent at least at a position where the guide wire tube 2 is bent.
  • the bending allowable portion Z of the bending portion 4 is from the tip of the guide wire tube 2 to the position c of the guide wire tube 2 from the position 1 b ′ to the opposite side of the position 1 a, that is, to the position c of 5 mm at the maximum.
  • the portion may be curved.
  • the position c is preferably a position of a maximum of 2 mm from the position 1b 'to the hand side.
  • the position 1 b ′ of the guide wire tube 2 is a point where a line that passes through the position 1 b and is perpendicular to the axis X of the suction tube 1 intersects the guide wire tube 2 in FIG.
  • FIG. 4 is a diagram schematically showing how the suction catheter 10 moves along the blood vessel 6 bent along the guide wire 5.
  • 4A is a cross-sectional view showing a state where the suction catheter 10 contacts the blood vessel wall 6d outside the bent portion of the blood vessel 6.
  • FIG. 4B is a diagram illustrating the shape of the suction port 3a in the state of FIG.
  • FIG. 4C is a cross-sectional view showing a state where the suction catheter 10 contacts the blood vessel wall 6e inside the bent portion of the blood vessel 6.
  • FIG. 4B is a diagram illustrating the shape of the suction port 3a in the state of FIG.
  • the bending portion 4 is positioned so as to be separated from the axis X of the suction tube 1. It curves to the position 1a side opposite to 1b.
  • the shape of the suction port 3a extends in the vertical direction as shown in FIG. 4D, and changes from a perfect circle shape to a vertical ellipse shape.
  • the position 1b portion (jaw) of the suction catheter 10 extends toward the position 1a. For this reason, it is possible to suppress the catch between the position 1b portion (jaw portion) and the blood vessel wall 6d outside the bent portion of the blood vessel 6.
  • the manufacturing method of the suction catheter 10 according to the present embodiment is not particularly limited as long as it includes a bending step of bending at least the end portion of the guide wire tube 2 on the suction port 3a side toward the position 1b.
  • the suction tube 1 and the guide wire tube 2 are welded by a conventionally known manufacturing method to manufacture the suction catheter 11 shown in FIG. 3A, and the suction catheter 11 is bent. Is mentioned.
  • a method for bending the suction catheter 11 for example, first, a bent metal core material is inserted into the guide wire tube 2 of the suction catheter 11. Thereafter, heat processing and cooling are performed below the melting points of the suction tube 1 and the guide wire tube 2. Finally, by pulling out the metal core material from the guide wire tube 2, the suction catheter 10 in which the curved portion 4 is formed is obtained.
  • a guide wire tube 2 having a curved portion 4 and a suction tube 1 that is curved along the curved portion 4 are prepared in advance, and both the tubes are welded by a conventionally known method. It is done.
  • a suction catheter 10 includes a suction tube 1 as a first tube provided with a suction lumen 1A as a first lumen having a suction portion 3 at a distal end, and a suction portion 3 side of the suction tube 1.
  • a guide wire tube 2 as a second tube having a guide wire lumen 2A as a second lumen through which the guide wire 5 is inserted, and the suction part 3 is inclined with respect to the axis X of the suction tube 1
  • the most distal position in the suction part 3 is defined as position 1a (first position), and the position farthest from the first position is defined as position 1b (second position).
  • the guide wire tube 2 includes a curved portion 4 that is curved toward the position 1b at least at the end on the suction port 3a side.
  • the bending portion 4 has a configuration in which the position 1a as the farthest near end position in the suction portion 3 is curved toward the position 1b as the nearest end position.
  • the end of the guide wire tube 2 on the suction port 3a side is provided with the curved portion 4 curved toward the position 1b, so that the suction tube 1 moves along the guide wire 5 and becomes a thrombus.
  • the position reaches the position 1b having the highest suction force in the suction catheter 10 approaches the lower blood vessel wall, and the distance between the position 1b and the lower blood vessel wall decreases.
  • the thrombus adhering to the lower blood vessel wall can be attracted
  • the curved portion 4 intersects the axis X of the suction tube 1 as the first tube.
  • the suction tube 1 moves along the guide wire 5 and reaches the thrombus, the position 1b in the suction catheter 10 can be brought closer to the lower blood vessel wall.
  • the suction tube 1 as the first tube and the guide wire tube 2 as the second tube are arranged such that their axes X and Y are parallel over the entire length.
  • the curved portion 4 is preferably formed with a recess 2a that is recessed toward the position 1b (second position).
  • the recessed part 2a hollowed in the position 1b (2nd position) side is formed in the curved part 4.
  • the position 1b of the suction catheter 10 is shifted downward by the recess 2a. Therefore, according to the above configuration, when the suction tube 1 moves along the guide wire 5 and reaches the thrombus, the position 1b in the suction catheter 10 can be brought closer to the lower blood vessel wall more reliably.
  • the guide wire tube 2 as the second tube has a position 1b (in the suction portion 3 of the suction tube 1 as the first tube from the tip thereof.
  • a portion from the second position) to the position opposite to the position 1a (first position) up to a position of 2 mm may be curved.
  • the manufacturing method of the suction catheter 10 includes a suction tube 1 as a first tube having a suction lumen 1A as a first lumen having a suction portion 3 at the tip, and a suction portion of the suction tube 1 3, and a guide wire tube 2 as a second tube having a guide wire lumen 2 ⁇ / b> A as a second lumen through which the guide wire 5 is inserted, and the suction unit 3 is arranged with respect to the axis X of the suction tube 1.
  • the distal end position in the suction part 3 is defined as a position 1a (first position), and the position farthest from the first position is defined as a position 1b. (Second position), characterized in that it includes a bending step of bending at least the end of the guide wire tube 2 on the suction port 3a side toward the position 1b. To have.
  • the suction catheter 10 with improved suction performance can be manufactured.
  • Suction tube 1A Suction lumen (first lumen) 1a position (first position) 1b position (second position) 2 Guide wire tube (second tube) 2A Guide wire lumen (second lumen) 2a Concave part 3 Suction part 3a Suction port 4 Bending part 5 Guide wire 6 Blood vessel 6A Thrombus 10 Suction catheter

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  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
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  • External Artificial Organs (AREA)
  • Surgical Instruments (AREA)

Abstract

Le but de la présente invention est de réaliser un cathéter d'aspiration ayant une capacité améliorée pour aspirer des objets à aspirer (par exemple, des caillots sanguins). Ce cathéter d'aspiration (10) est pourvu d'une section incurvée (4) au niveau de laquelle au moins une partie d'extrémité sur un côté d'ouverture d'aspiration (3a) d'un tube de fil de guidage (2) est incurvée vers un second côté de position (1b).
PCT/JP2018/000679 2017-02-17 2018-01-12 Cathéter d'aspiration WO2018150772A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880011891.7A CN110300611B (zh) 2017-02-17 2018-01-12 抽吸导管
JP2018568043A JP7023875B2 (ja) 2017-02-17 2018-01-12 吸引カテーテル

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-028224 2017-02-17
JP2017028224 2017-02-17

Publications (1)

Publication Number Publication Date
WO2018150772A1 true WO2018150772A1 (fr) 2018-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/000679 WO2018150772A1 (fr) 2017-02-17 2018-01-12 Cathéter d'aspiration

Country Status (3)

Country Link
JP (1) JP7023875B2 (fr)
CN (1) CN110300611B (fr)
WO (1) WO2018150772A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847119A (zh) * 2019-02-26 2019-06-07 胡涛 微导管及微导管组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105240A (ja) * 2005-10-13 2007-04-26 Kaneka Corp 体外循環用カテーテル
JP2007202901A (ja) * 2006-02-03 2007-08-16 Unitika Ltd トリプルルーメンカテーテル
JP2009261767A (ja) * 2008-04-28 2009-11-12 Unitika Ltd バスキュラーアクセスカテーテル
JP2010017211A (ja) * 2008-07-08 2010-01-28 Nipro Corp 吸引カテーテル
WO2014147815A1 (fr) * 2013-03-22 2014-09-25 テルモ・クリニカルサプライ株式会社 Cathéter pour aspiration de matière étrangère dans un vaisseau sanguin

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449010B1 (en) * 2002-07-15 2008-11-11 Motoya Hayase Material removal catheter and method
JP4321019B2 (ja) * 2002-08-01 2009-08-26 株式会社カネカ 吸引カテーテル
ITMI20022666A1 (it) * 2002-12-17 2004-06-18 N G C Medical S P A Catetere a due lumi per la protezione distale e rimozione di trombi, particolarmente studiato per interventi coronarici periferici e percutanei.
JP4409179B2 (ja) * 2003-01-22 2010-02-03 ニプロ株式会社 吸引性とクロス性の改良された血栓吸引カテーテル
US7938820B2 (en) * 2005-08-18 2011-05-10 Lumen Biomedical, Inc. Thrombectomy catheter
JP2007236632A (ja) * 2006-03-08 2007-09-20 Kaneka Corp カテーテルシャフト
JP5381703B2 (ja) * 2007-04-03 2014-01-08 ニプロ株式会社 血栓吸引カテーテル
JP5777936B2 (ja) * 2010-07-16 2015-09-09 テルモ株式会社 吸引カテーテル
US9554822B2 (en) * 2011-09-02 2017-01-31 Abbott Cardiovascular Systems Inc. Thrombectomy catheter with aspiration and guidewire lumens defining an asymmetrical taper and cutting edge with offset tip
CN103252014B (zh) * 2012-02-17 2016-12-14 株式会社戈德曼 医疗用器具
JP6039199B2 (ja) * 2012-03-12 2016-12-07 株式会社グッドマン カテーテル
CN202637572U (zh) * 2012-05-21 2013-01-02 张魁正 防贴血管壁血液透析导管
JP6391910B2 (ja) * 2012-12-14 2018-09-19 株式会社グッドマン 吸引カテーテル
CN203935256U (zh) * 2014-04-29 2014-11-12 天津德岩科技有限公司 一次性流产吸引管
GB2530389B (en) * 2014-08-11 2019-11-27 Bissell Homecare Inc Vacuum cleaner
CN104586470A (zh) * 2015-01-28 2015-05-06 湖南埃普特医疗器械有限公司 血栓抽吸装置及血栓抽吸导管
DE202015002060U1 (de) * 2015-03-17 2015-11-25 Gerhard-Friedrich Horak Infusions- und Aspirations- Catheter (IAC) (Katheter zur Entfernung von Thromben und Applikation von Medikamenten)
CN104758029B (zh) * 2015-04-16 2016-03-16 黄经春 一种血栓抽吸导管及其应用

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105240A (ja) * 2005-10-13 2007-04-26 Kaneka Corp 体外循環用カテーテル
JP2007202901A (ja) * 2006-02-03 2007-08-16 Unitika Ltd トリプルルーメンカテーテル
JP2009261767A (ja) * 2008-04-28 2009-11-12 Unitika Ltd バスキュラーアクセスカテーテル
JP2010017211A (ja) * 2008-07-08 2010-01-28 Nipro Corp 吸引カテーテル
WO2014147815A1 (fr) * 2013-03-22 2014-09-25 テルモ・クリニカルサプライ株式会社 Cathéter pour aspiration de matière étrangère dans un vaisseau sanguin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109847119A (zh) * 2019-02-26 2019-06-07 胡涛 微导管及微导管组件

Also Published As

Publication number Publication date
CN110300611B (zh) 2022-03-04
CN110300611A (zh) 2019-10-01
JPWO2018150772A1 (ja) 2019-12-12
JP7023875B2 (ja) 2022-02-22

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