WO2009125575A1 - Cathéter - Google Patents

Cathéter Download PDF

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Publication number
WO2009125575A1
WO2009125575A1 PCT/JP2009/001594 JP2009001594W WO2009125575A1 WO 2009125575 A1 WO2009125575 A1 WO 2009125575A1 JP 2009001594 W JP2009001594 W JP 2009001594W WO 2009125575 A1 WO2009125575 A1 WO 2009125575A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular member
lumen
catheter
distal end
central axis
Prior art date
Application number
PCT/JP2009/001594
Other languages
English (en)
Japanese (ja)
Inventor
森謙二
Original Assignee
日本ライフライン株式会社
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 日本ライフライン株式会社 filed Critical 日本ライフライン株式会社
Priority to CN200980103500.5A priority Critical patent/CN101932356B/zh
Publication of WO2009125575A1 publication Critical patent/WO2009125575A1/fr
Priority to HK11100818.7A priority patent/HK1146715A1/xx

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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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
    • 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
    • A61M25/0141—Tip steering devices having flexible regions as a result of using materials with different mechanical properties
    • 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
    • A61M25/0105—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
    • A61M2025/015—Details of the distal fixation of the movable mechanical means

Definitions

  • the present invention relates to a catheter. More specifically, the present invention relates to a catheter capable of easily changing the direction of the vicinity of the distal end inserted into the body cavity by operating the operation portion on the proximal end side arranged outside the body. .
  • the orientation of the distal end (tip) of the catheter inserted into the body is the proximal end (proximal end or proximal side) of the catheter placed outside the body. It is deflected by operating the operation unit mounted on the.
  • the vicinity of the distal end of the catheter is required to be bendable with a predetermined curve shape.
  • the operation wire is inserted into the eccentric lumen. For this reason, there is a possibility that an eccentric force is applied to the entire catheter by pulling the operation wire, and the vicinity of the proximal end of the catheter is also curved.
  • the present invention has been made in view of such problems, and an object of the present invention is to reduce the possibility that the vicinity of the proximal end of the catheter is curved and to bend the vicinity of the distal end in a predetermined curve shape. On offer.
  • One embodiment of the present invention is a catheter.
  • the catheter is composed of a relatively flexible member disposed on the distal end side and a relatively inflexible member disposed on the proximal end side.
  • a low-flexibility member is joined so that a highly flexible member has a tapered joining surface that narrows from the distal end side toward the proximal end side, and a plurality of lumens are formed along the axial direction.
  • an operation wire that is slidably inserted into a lumen formed at a position including the central axis of the tubular member among the plurality of lumens, and has one end connected to the vicinity of the distal end of the tubular member And.
  • the joint surface may be a plane inclined with respect to the central axis of the tubular member.
  • the lumen through which the operation wire is inserted may be formed at a position where the central axis thereof coincides with the central axis of the tubular member.
  • the tubular member includes an inner cylinder member having a plurality of lumens and an outer cylinder member that covers the inner cylinder member, and both the inner cylinder member and the outer cylinder member are joined by a plurality of members having different flexibility. And the position of each joint surface of an inner cylinder member and an outer cylinder member may shift
  • the present invention it is possible to reduce the risk of the vicinity of the proximal end of the catheter being curved and to curve the vicinity of the distal end with a predetermined curve shape.
  • FIG. 1 is a side view of a catheter according to Embodiment 1.
  • FIG. 1 is a top view of a catheter according to Embodiment 1.
  • FIG. 3 is a cross-sectional view of the catheter according to Embodiment 1 taken along the line BB in FIG.
  • FIG. 2 is a cross-sectional view taken along the line CC of FIG. 1 in the catheter according to the first embodiment.
  • FIG. 3 is a cross-sectional view taken along the line DD in FIG. 2 in the catheter according to the first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line EE of FIG. 1 in the catheter according to the first embodiment. In the cross-sectional view, only the tubular member is illustrated.
  • 6 is a side view of a catheter according to Embodiment 2.
  • FIG. 6 is a top view of a catheter according to Embodiment 2.
  • FIG. FIG. 8 is a cross-sectional view taken along the line FF in FIG. 7 in the catheter according to the second embodiment. In the cross-sectional view, only the tubular member is illustrated.
  • the catheter according to Embodiment 1 is an electrode catheter capable of tip deflection operation, and is suitably used for diagnosis or treatment of arrhythmia in the heart, for example.
  • FIG. 1 is a side view of a catheter according to the first embodiment.
  • FIG. 2 is a top view of the catheter according to the first embodiment.
  • the catheter 2 according to Embodiment 1 has a tip electrode 10 and ring-shaped electrodes 12 a, 12 b, and 12 c at the distal end of the tubular member 4.
  • the tip electrode 10 and the ring-shaped electrodes 12a, 12b, and 12c are fixed to the tubular member 4 using, for example, an adhesive.
  • a handle 6 is attached to the proximal end of the tubular member 4.
  • a lead wire electrically connected to the tip electrode 10 and the ring-shaped electrodes 12a, 12b, and 12c extends from the handle 6.
  • the handle 6 is equipped with a knob 7 for performing a deflection movement operation (swing operation) of the distal end portion of the tubular member 4.
  • the tubular member 4 has a hollow structure having a plurality of lumens formed along the axial direction as will be described later.
  • the vicinity of the distal end of the tubular member 4 is relatively flexible, and the vicinity of the proximal end of the tubular member 4 is relatively inflexible.
  • the main part of the tubular member 4 is made of a synthetic resin such as polyolefin, polyamide, polyether polyamide, or polyurethane.
  • the outer diameter of the tubular member 4 is generally about 0.6 to 3 mm, and the length is about 1150 to 1200 mm. In the present embodiment, the tubular member 4 has a diameter of about 2.4 mm and a length of about 1170 mm.
  • the lead wires connected to the tip electrode 10 and the ring electrodes 12a, 12b, and 12c shown in FIGS. 1 and 2 are insulated from each other. Passed in state. An operation wire is passed through the lumen.
  • the tip electrode 10 and the plurality of ring-shaped electrodes 12a, 12b, and 12c are made of a metal having good electrical conductivity, such as aluminum, copper, stainless steel, gold, or platinum. In order to provide a good contrast property for X-rays, the tip electrode 10 and the ring electrodes 12a, 12b, 12c are preferably made of platinum or the like.
  • the outer diameters of the tip electrode 10 and the ring-shaped electrodes 12a, 12b, 12c are not particularly limited, but are preferably about the same as the outer diameter of the tubular member 4, and are usually about 0.5 to 3 mm.
  • FIG. 3 is a cross-sectional view of the catheter according to Embodiment 1 taken along the line BB of FIG. 4 is a cross-sectional view taken along the line CC of FIG. 1 in the catheter according to the first embodiment.
  • 5 is a cross-sectional view of the catheter according to Embodiment 1 taken along the line DD in FIG.
  • the tubular member 4 includes an inner cylinder member 4a having a plurality of lumens and an outer cylinder member 4b covering the inner cylinder member 4a.
  • the inner cylinder member 4a has an axial direction.
  • a first lumen 20, a second lumen 22, a third lumen 24, a fourth lumen 26 and a fifth lumen 28 are formed.
  • the first lumen 20 is formed at a position including the central axis 21 of the tubular member 4.
  • the first lumen 20 is formed at a position where the central axis thereof coincides with the central axis 21 of the tubular member 4.
  • a second lumen 22, a third lumen 24, a fourth lumen 26 and a fifth lumen 28 are formed.
  • the second lumen 22 and the third lumen 24 are provided at positions facing each other across the central axis 21 of the tubular member 4, and the fourth lumen 26 and the fifth lumen 28 are tubular.
  • the members 4 are provided at positions facing each other across the central axis 21.
  • the number of lumens formed around the lumen is not particularly limited. However, it is preferable that the lumen is arranged so as to have a symmetrical structure with respect to the central axis 21 of the tubular member 4 in the molding of the tubular member 4.
  • the diameter of the inner cylinder member 4a in this embodiment is about 1.85 mm.
  • the diameter of the first lumen 20 is about 0.1R to 0.45R, where R is the diameter of the tubular member 4.
  • the diameters of the second lumen 22, the third lumen 24, the fourth lumen 26, and the fifth lumen 28 are about 0.1R to 0.45R, where R is the diameter of the tubular member 4.
  • the diameter of the first lumen 20 is about 0.45 mm
  • the diameters of the second lumen 22, the third lumen 24, the fourth lumen 26, and the fifth lumen 28 are about 0.47 mm. .
  • the operation wire 40 is slidably inserted into the first lumen 20.
  • a spherical anchor 42 having a diameter larger than that of the operation wire 40 in the first lumen 20 is formed at the distal end of the operation wire 40.
  • the proximal end of the operation wire 40 is connected to the knob 7 shown in FIGS. 1 and 2.
  • a recess 12 is formed inside the tip electrode 10.
  • This recess 12 is filled with solder 30.
  • the distal end of the operation wire 40 is embedded in the solder 12, and the distal end of the operation wire 40 is fixed to the solder 30 and the tip electrode 10, thereby connecting the distal end of the tubular member 4.
  • the proximal end of the operation wire 40 is fixed to the knob 7 of the handle 6. Accordingly, by operating the knob 7 shown in FIGS. 1 and 2, the operation wire 40 is pulled, and the distal end of the catheter 2 can be swung in the direction of arrow A in FIGS. 2, 4 and 6. ing.
  • the anchor 42 is provided at the distal end of the operation wire 40, the distal end of the operation wire 40 is difficult to come out of the solder 30. Thereby, the operation reliability of the catheter 2 can be improved.
  • a conducting wire 50 is inserted through the second lumen 22.
  • the distal end of the conductive wire 50 is embedded in the solder 30.
  • the conducting wire 50 and the tip chip electrode 10 are electrically connected via the solder 30.
  • Conductive wires 60 a, 60 b and 60 c are inserted through the third lumen 24.
  • the distal ends of the conducting wires 60a, 60b, 60c are fixed to the ring-shaped electrodes 12a, 12b, 12c by solder (not shown), respectively, and are thereby electrically connected to the ring-shaped electrodes 12a, 12b, 12c, respectively.
  • thermocouple 70 as a temperature sensor is inserted into the fourth lumen 26.
  • the thermocouple 70 can sense the temperature near the distal end of the catheter.
  • the fifth lumen 28 is a spare lumen. For example, when a ring-shaped electrode is added, a conductive wire connected to the increased ring-shaped electrode can be inserted into the fifth lumen 28.
  • FIG. 6 is a cross-sectional view of the tubular member 4 of the catheter according to the first embodiment, taken along the line EE of FIG. In the cross-sectional view, only the tubular member 4 is illustrated.
  • the inner cylindrical member 4a of the tubular member 4 is relatively flexible, which is disposed on the distal end side high member 4a 1 and the proximal end side of the deployed relatively flexible It is composed of a lower member 4a 2.
  • the Shore D hardness of the member 4a 1 is 35 to 72
  • the Shore D hardness of the member 4a 2 is 63 to 80.
  • the highly flexible member 4 a 1 and the low flexible member 4 a 2 are tapered such that the highly flexible member 4 a 1 becomes thinner from the distal end side to the proximal end side of the tubular member 4.
  • the joint surface 80 is a flat surface inclined with respect to the central axis 21 of the tubular member 4.
  • a region R1 a distance of about 4R when the diameter of the tubular member 4 is R
  • the joining surface 80 is tapered with respect to the axis of the tubular member 4. Therefore, in the region R1, in sectional view perpendicular to the central axis 21 of the tubular member 4, the proximal end ratio of the cross-sectional area of the high member 4a 1 of flexibility from the distal end side to total cross-sectional area of the tubular member 4 It is getting smaller toward the side.
  • the region R1 where the joining surface 80 exists is provided in a range of about 20 to 200 mm from the distal end, for example.
  • the operation wire 40 is located on the central axis 21 of the tubular member 4, when the operation wire 40 is pulled, a force in the contraction direction is applied to the tubular member 4.
  • the flexibility of the tubular member 4 is biased in a cross-sectional view orthogonal to the central axis 21 of the tubular member 4, a region having high flexibility on one side and low flexibility on the other side. An area exists. Therefore, when a force in the contraction direction is applied to the tubular member 4, in the region R ⁇ b> 1 where the joint surface 80 exists, the tubular member 4 tilts toward the side where the highly flexible region exists (upward in FIG. 6). Power is generated.
  • the tubular member 4 is curved to the side where the highly flexible region is present in the region R1, and the far end portion of the tubular member 4 is deflected in the direction of arrow A in FIGS.
  • the proportion of highly flexible members gradually increases from the proximal end side to the distal end side of the tubular member 4 in a cross-sectional view orthogonal to the central axis 21 of the tubular member 4, so In R1, it bends gradually.
  • the flexibility of the tubular member 4 is uniform and uniform, so that a force in the direction in which the tubular member 4 tilts does not occur and a force in the contraction direction parallel to the central axis 21 is applied. Only. Therefore, the tubular member 4 is not curved except in the region R1, and the linearity is maintained.
  • the curve shape of the tubular member 4 in the region R1 can be freely designed according to the taper angle of the joint surface 80 in the region R1. Moreover, since the joining surface 80 faces a certain direction, the direction in which the tubular member 4 bends is limited to a certain direction.
  • a blade 90 is embedded as a reinforcing member in the outer cylinder member 4b of the tubular member 4 from the proximal end side of the tubular member 4 to a predetermined position. Thereby, the rigidity in the proximal end side of the tubular member 4 can be improved.
  • the blade 90 may be formed of a metal such as stainless steel, tungsten, gold, titanium, silver, copper, platinum, or iridium, or an alloy of these metals.
  • the blade 90 may be formed of a non-metallic material, for example, polyparaphenylene terephthalamide fiber, liquid crystal polymer fiber, or glass fiber.
  • the operation wire 40 is slidably inserted through the first lumen 20 formed at a position including the central axis 21 of the tubular member 4.
  • the tubular member 4 is formed by joining the relatively flexible member 4a 1 disposed on the distal end side and the relatively inflexible member 4a 2 disposed on the proximal end side. The distance between the joint surface 80 and the proximal end of the tubular member 4 is shortened stepwise or continuously in a certain direction.
  • FIG. 7 is a side view of the catheter according to the second embodiment.
  • FIG. 8 is a top view of the catheter according to the second embodiment.
  • 9 is a cross-sectional view of the tubular member 4 of the catheter according to the second embodiment, taken along the line FF of FIG. In the cross-sectional view of FIG. 9, only the tubular member 4 is illustrated.
  • the inner cylinder member 4a of the tubular member 4 are formed by joining members having different flexibility. That is, in the inner cylindrical member 4a, a high member 4a 1 relatively flexible disposed on a distal end side and the lower member 4a 2 relatively flexible, which is disposed at the proximal end side is joined Yes.
  • the outer tubular member 4b, a high member 4b 1 with relatively flexible disposed at the distal end side, flexible than member 4b 1 which is disposed adjacent the proximal end of the member 4b 1 a member 4b 2 low, and low member 4b 3 flexible are joined than member 4b 2 disposed adjacent to the proximal end side of the member 4b 2.
  • the Shore D hardness of the member 4a 1 is 35 to 72
  • the Shore D hardness of the member 4a 2 is 63 to 80.
  • the Shore D hardness of the member 4b 1 is 20 to 48
  • the Shore D hardness of the member 4b 2 is 35 to 72
  • the Shore D hardness of the member 4b 3 is 63 to 80.
  • the members 4a 1 , 4b 1 , 4b 2 having high flexibility with respect to the members adjacent to the proximal end side are tapered such that each of the tubular members 4 becomes thinner from the distal end side toward the proximal end side.
  • the joint surfaces 80, 82, and 84 are provided. That is, the joint surface 80 of the members 4a 1 and 4a 2 having different flexibility, the joint surface 82 of the members 4b 1 and 4b 2, and the joint surface 84 of the members 4b 2 and 4b 3 are the proximal ends of the tubular member 4.
  • the distance from is shortened stepwise or continuously in a certain direction.
  • the joining surfaces 80, 82, 84 are flat surfaces inclined with respect to the central axis 21 of the tubular member 4.
  • predetermined distances R1, R2, and R3 from the respective starting points 80a, 82a, and 84a of the joining surfaces 80, 82, and 84 for example, when the diameter of the tubular member 4 is R, about 6R and 4R, respectively.
  • 6R to the end points 80b, 82b, 84b
  • regions R1, R2, R3, respectively the joining surfaces 80, 82, 84 are tapered with respect to the axis of the tubular member 4. It has become.
  • the proportion of the members 4a 1 , 4b 1 , and 4b 2 having relatively high flexibility is increased from the proximal end side to the distal end side.
  • the joining surfaces 80, 82, and 84 are arranged so as to be offset in the axial direction of the tubular member 4, and in this embodiment, the regions R1, R2, and R3 are about 20 to 40 mm, 30 from the distal end, respectively. It is provided in a range of ⁇ 60 mm and 40 ⁇ 200 mm.
  • a plurality of members 4b 1 , 4b 2 , 4b 3 having different outer cylinder members 4b are joined. And the position of each joint surface 80,82,84 of the inner cylinder member 4a and the outer cylinder member 4b has shifted
  • FIG. Therefore, when the operation wire 40 is pulled, a force in a direction in which the tubular member 4 tilts in a certain direction is generated in the regions R1, R2, and R3. As a result, the vicinity of the distal end can be curved with a more free curve shape, and the operability of the catheter 2 is further improved.
  • the inner cylinder member 4a of the tubular member 4 is formed of two types of members having different flexibility.
  • the outer cylinder member 4b is formed of three types of members having different flexibility.
  • the number of members having different flexibility forming the tubular member 4 is not particularly limited, and may be two or more types.
  • the flexibility of each member is not particularly limited as long as the distal end side is relatively flexible and the proximal end side is relatively low flexibility. In addition, it becomes possible to bend the tubular member 4 more freely, so that there are many kinds of members used for the tubular member 4.
  • the present invention can be used for a catheter.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (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)

Abstract

La présente invention concerne un cathéter doté d’un élément tubulaire flexible (4) dans lequel sont formées des lumières s’étendant le long de la direction axiale, ainsi que d’un fil métallique de commande inséré avec faculté de glissement dans l’une quelconque des lumières et ayant une extrémité raccordée à l’extrémité distale de l’élément tubulaire (4). La lumière par laquelle est inséré le fil métallique de commande est formée au niveau d’une position comprenant l’axe central de l’élément tubulaire (4). L’élément tubulaire (4) est formé par jonction entre un élément (4a1) monté sur le côté distal de l’élément tubulaire et ayant une flexibilité relativement élevée et un élément (4a2) monté sur le côté proximal de l’élément tubulaire et ayant une flexibilité relativement faible. La distance entre l’extrémité proximale de l’élément tubulaire (4) et une surface de jonction (80) entre les éléments ayant une flexibilité différente diminue par paliers ou en continu dans une direction spécifique.
PCT/JP2009/001594 2008-04-11 2009-04-06 Cathéter WO2009125575A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200980103500.5A CN101932356B (zh) 2008-04-11 2009-04-06 导管
HK11100818.7A HK1146715A1 (en) 2008-04-11 2011-01-26 Catheter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008104131A JP4362536B2 (ja) 2008-04-11 2008-04-11 カテーテル
JP2008-104131 2008-04-11

Publications (1)

Publication Number Publication Date
WO2009125575A1 true WO2009125575A1 (fr) 2009-10-15

Family

ID=41161712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/001594 WO2009125575A1 (fr) 2008-04-11 2009-04-06 Cathéter

Country Status (5)

Country Link
JP (1) JP4362536B2 (fr)
KR (1) KR101035748B1 (fr)
CN (1) CN101932356B (fr)
HK (1) HK1146715A1 (fr)
WO (1) WO2009125575A1 (fr)

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CN103124577A (zh) * 2010-09-28 2013-05-29 日本来富恩株式会社 探针
US8652129B2 (en) 2008-12-31 2014-02-18 Medtronic Ardian Luxembourg S.A.R.L. Apparatus, systems, and methods for achieving intravascular, thermally-induced renal neuromodulation
US8728075B2 (en) 2010-04-26 2014-05-20 Medtronic Ardian Luxembourg S.A.R.L. Multi-directional deflectable catheter apparatuses, systems, and methods for renal neuromodulation
US8774913B2 (en) 2002-04-08 2014-07-08 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for intravasculary-induced neuromodulation
US9044575B2 (en) 2012-10-22 2015-06-02 Medtronic Adrian Luxembourg S.a.r.l. Catheters with enhanced flexibility and associated devices, systems, and methods
US9125661B2 (en) 2002-04-08 2015-09-08 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for renal neuromodulation
US9131978B2 (en) 2002-04-08 2015-09-15 Medtronic Ardian Luxembourg S.A.R.L. Methods for bilateral renal neuromodulation
US9399115B2 (en) 2012-10-22 2016-07-26 Medtronic Ardian Luxembourg S.A.R.L. Catheters with enhanced flexibility and associated devices, systems, and methods
WO2016160694A1 (fr) 2015-03-27 2016-10-06 Shifamed Holdings, Llc Dispositifs médicaux orientables, systèmes et leurs procédés d'utilisation
US10188832B2 (en) 2009-06-24 2019-01-29 Shifamed Holdings, Llc Steerable delivery sheaths
US10433905B2 (en) 2013-03-15 2019-10-08 Medtronic Ardian Luxembourg S.A.R.L. Multi-electrode apposition judgment using pressure elements
US10548663B2 (en) 2013-05-18 2020-02-04 Medtronic Ardian Luxembourg S.A.R.L. Neuromodulation catheters with shafts for enhanced flexibility and control and associated devices, systems, and methods
EP3505213A4 (fr) * 2016-08-23 2020-09-02 Asahi Intecc Co., Ltd. Structure d'articulation et cathéter présentant ladite structure d'articulation
US10933221B2 (en) 2015-11-09 2021-03-02 Kalila Medical, Inc. Steering assemblies for medical devices, and methods of use
US11052226B2 (en) 2015-04-24 2021-07-06 Kalila Medical, Inc. Steerable medical devices, systems, and methods of use
WO2023044231A1 (fr) * 2020-03-10 2023-03-23 Imperative Care, Inc. Cathéter neurovasculaire à flexibilité améliorée
US11766539B2 (en) 2019-03-29 2023-09-26 Incept, Llc Enhanced flexibility neurovascular catheter
US11819228B2 (en) 2019-12-18 2023-11-21 Imperative Care, Inc. Methods and systems for treating a pulmonary embolism
US11850349B2 (en) 2018-07-06 2023-12-26 Incept, Llc Vacuum transfer tool for extendable catheter
US12042160B2 (en) 2018-05-01 2024-07-23 Incept, Llc Catheter having angled tip

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JP5561784B2 (ja) * 2011-02-28 2014-07-30 日本ライフライン株式会社 電極カテーテル
CA2931261A1 (fr) * 2013-12-06 2015-06-11 Shifamed Holdings, Llc Dispositifs et systemes medicaux orientables et leurs procedes d'utilisation
JP6541268B2 (ja) * 2016-02-25 2019-07-10 日本ライフライン株式会社 電極カテーテル
JP6570123B2 (ja) * 2016-02-29 2019-09-04 日本ライフライン株式会社 心腔内除細動カテーテル
KR102272935B1 (ko) 2020-09-28 2021-07-06 한국생산기술연구원 카테터 리플로우 공정용 직진성 개선장치
KR102309873B1 (ko) 2020-09-29 2021-10-08 주식회사 바스플렉스 멀티루멘 카테터 제조용 노즐 팁 어셈블리

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