KR101788491B1 - Balloon catheter - Google Patents

Balloon catheter Download PDF

Info

Publication number
KR101788491B1
KR101788491B1 KR1020167008548A KR20167008548A KR101788491B1 KR 101788491 B1 KR101788491 B1 KR 101788491B1 KR 1020167008548 A KR1020167008548 A KR 1020167008548A KR 20167008548 A KR20167008548 A KR 20167008548A KR 101788491 B1 KR101788491 B1 KR 101788491B1
Authority
KR
South Korea
Prior art keywords
shaft
distal end
core wire
rear end
end shaft
Prior art date
Application number
KR1020167008548A
Other languages
Korean (ko)
Other versions
KR20160049546A (en
Inventor
야스히로 오카와
Original Assignee
니혼라이프라인 가부시키가이샤
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 니혼라이프라인 가부시키가이샤 filed Critical 니혼라이프라인 가부시키가이샤
Publication of KR20160049546A publication Critical patent/KR20160049546A/en
Application granted granted Critical
Publication of KR101788491B1 publication Critical patent/KR101788491B1/en

Links

Images

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
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port
    • 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
    • A61M2025/0183—Rapid exchange or monorail 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
    • A61M25/10—Balloon catheters

Abstract

The present invention relates to a method of manufacturing a core wire having a front end shaft 10 including a resin tube, a rear end shaft 20 including a metal tube, a balloon 30, an inner tube 40, And the core wire 50 including the straight portion 51 and the tapered portion 52 is fixed to the inner peripheral surface of the rear end shaft 20 on the rear end side of the straight portion 51 And is inserted between the inner peripheral surface of the distal end shaft 10 and the outer peripheral surface of the inner tube 40 at the distal end side of the straight portion 51. [ The balloon catheter having such a configuration is excellent in pushability when inserted into a blood vessel and can reliably prevent kinking in the rear end portion of the distal shaft, .

Figure R1020167008548

Description

Balloon Catheter {BALLOON CATHETER}

The present invention relates to a rapid-exchange type balloon catheter.

BACKGROUND ART Conventionally, a balloon catheter having an outer shaft and an inner tube is known (see, for example, Patent Document 1 and Patent Document 2).

In a rapid-exchange type balloon catheter as shown in Patent Documents 1 and 2, a balloon is attached to the distal end of the outer shaft, the distal end of the inner tube is fixed to the distal end of the balloon, And is opened at the side surface to form a guide wire port.

On the other hand, a rear end shaft including a metal tube is connected to the rear end of the outer shaft including the resin tube.

Here, the lumen of the outer shaft (leading-end shaft) and the trailing-end shaft is an extension lumen through which the fluid for expanding the balloon flows, and the lumen of the inner tube is a guide wire lumen for inserting the guide wire.

In a balloon catheter of a rapid-exchange type as shown in Patent Documents 1 and 2, a core wire is inserted as a reinforcing member in a lumen of an outer shaft including a resin tube.

The rear end portion of the core wire is fixed to the inner circumferential surface of the rear end shaft including the metal tube by welding or the like. This makes it possible to improve the rigidity of the rear end portion of the outer shaft (front end shaft) that needs reinforcement, more specifically, the rear end portion of the guide wire port than the formation position thereof, The occurrence of the kink (buckling) of the belt can be suppressed to some extent.

Here, the core wire usually has a straight portion having a constant diameter and a tapered portion (diameter-reduced portion) located at the tip side of the straight portion. The tapered portion of the core wire is reduced in diameter in the tip direction, whereby the hardness (rigidity) of the balloon catheter can be gradually lowered toward the distal end.

However, in the balloon catheter as shown in Patent Documents 1 and 2, since the distal end portion of the core wire is not fixed to the inner circumferential surface of the outer shaft (the distal end is the free end portion), sufficient pushability can not be exhibited .

That is, when the balloon catheter is inserted into the blood vessel and the pressure input is applied from the rear end shaft, the core wire moves (advances) in the axial direction with respect to the outer shaft (distal end shaft) Can not be transmitted sufficiently.

In the balloon catheter in which the distal end of the core wire is not fixed on the inner circumferential surface of the outer shaft, when the balloon catheter is inserted into the blood vessel (when pressure is applied), the rear end portion (I.e., a portion up to the tip end position of the side shaft) can not be surely prevented.

With respect to such a problem, Patent Document 3 below discloses a balloon catheter comprising a core wire fixed to the inner circumferential surface of the outer shaft at the rear end portion of the outer shaft (distal shaft).

The core wire secured to the inner circumferential surface of the rear end shaft is also fixed to the inner circumferential surface of the distal end shaft so that the pressure input from the rear end shaft can be reliably transmitted to the distal end shaft as in the balloon catheter described in Patent Document 3, It can show pushability. Further, the stiffness of the shaft at the rear end side of the core wire can be made sufficiently higher than the fixing position of the core wire, and the kink at that portion can be reliably prevented.

However, when the core wire is firmly fixed to the inner circumferential surface of the distal end shaft as in the balloon catheter described in Patent Document 3, the bending rigidity of the distal end shaft becomes excessive, and flexibility is remarkably impaired. As a result, there arises a problem that such a balloon catheter can not be smoothly inserted into a bent blood vessel (for example, a blood vessel in the heart).

In the case where the fixing position of the core wire on the inner circumferential surface of the shaft on the distal end side is largely spaced from the formation position of the guide wire port to the rear end side, in the portion from the formation position of the guide wire port to the fixing position of the core wire It is not possible to sufficiently increase the rigidity of the portion, and there is a possibility that a kink occurs in the portion.

Japanese Patent Application Laid-Open No. 2002-28243 Japanese Patent Application Laid-Open No. 2003-164528 Japanese Patent No. 5061614

The present invention has been made on the basis of the above-described circumstances.

SUMMARY OF THE INVENTION An object of the present invention is to provide a kink (buckling) in a rear portion of a distal end shaft (a portion from a position where a guide wire port is formed to a distal end position of a rear end shaft) A balloon catheter of a rapid-exchange type that can be surely prevented and can be smoothly inserted into a curved blood vessel.

(1) A balloon catheter of the present invention comprises: a distal shaft provided with a resin tube;

A rear end shaft including a metal tube connected to a rear end of the front end shaft,

A balloon connected to a distal end of the distal shaft,

Wherein the balloon is inserted into the lumen of the distal end shaft and inside the balloon to form a guide wire lumen. The distal end of the resin tube is opened at the side of the distal end shaft as a guide wire port, An inner tube whose tip is opened,

And a core wire having a straight portion and a diameter reduction portion and having the diameter reduction portion as a distal end side and being inserted into a lumen of the distal end shaft,

The rear end side of the core wire is fixed to the inner circumferential surface of the rear end shaft and the straight portion of the core wire is press-fitted between the inner circumferential surface of the distal end shaft and the outer circumferential surface of the inner tube,

(L1) in the axial direction from the forming position of the guide wire port to the tip of the straight portion of the core wire is 1.0 to 50.0 mm,

The straight portion of the core wire is press-fitted so that the cross-section of the distal end shaft in the portion where the straight portion is press-fitted becomes an elliptic shape, and the long diameter of the ellipse is D 11 and the short diameter is D 12 , The value of (D 11 ) / (D 12 ) is 1.02 to 1.30.

According to the balloon catheter having such a configuration, the straight portion of the core wire fixed to the inner circumferential surface of the rear end shaft is press-fitted between the inner circumferential surface of the distal end shaft and the outer circumferential surface of the inner tube to fix (The region including the portion from the position where the guide wire port is formed to the tip end position of the rear end shaft) than the fixing position of the core wire, The rigidity of the shaft at the front end of the shaft can be made sufficiently high, so that it is possible to reliably prevent the kink at the portion.

Further, the core wire is not fixed firmly to the inner circumferential surface of the distal end shaft, but the core wire is fixed by pressing the straight portion between the inner circumferential surface of the distal end shaft and the outer circumferential surface of the inner tube, When the bending stress is exerted on the distal end shaft, the core wire can move (slide) in the axial direction with respect to the distal end shaft, thereby ensuring good flexibility in the distal end shaft As a result, the distal end shaft can be smoothly inserted into the curved blood vessel.

(2) In the balloon catheter of the present invention, the inner diameter of the resin tube constituting the distal shaft is d 1 , the outer diameter of the inner tube is D 2 , the diameter of the straight portion of the core wire is D 3 ), It is preferable that the value of D 3 / (d 1 -D 2 ) is 1.05 to 1.95. Note that the inner diameter d 1 of the resin tube is an inner diameter in a state in which the core wire is not inserted.

According to the balloon catheter having such a configuration, it is possible to impart an appropriate pressure (fitting force) between the inner peripheral surface of the distal end shaft and the outer peripheral surface of the inner tube with respect to the outer peripheral surface of the straight portion of the core wire, It combines rigidity and flexibility in a balanced manner.

The balloon catheter of the present invention is excellent in pushability when inserted into a blood vessel, and is capable of reliably kinking in the rear end portion (the portion from the position where the guide wire port is formed to the distal end position of the rear end shaft) It is possible to smoothly insert the blood vessel into a bent blood vessel.

1 is a cross-sectional view schematically showing a longitudinal section of a balloon catheter according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view (aa sectional view, bb sectional view, cc sectional view, dd sectional view, and ee sectional view of Fig. 1) of a balloon catheter according to an embodiment of the present invention.

The balloon catheter 100 of this embodiment shown in Figs. 1 and 2 is used for percutaneous coronary angioplasty (PTCA) and the like.

The balloon catheter 100 includes a distal end shaft 10 including a resin tube, a rear end shaft 20 including a metal tube connected to the rear end of the distal end shaft 10, A balloon 30 connected to the distal end of the distal end shaft 10 and a lumen of the distal end shaft 10 and a balloon 30 to form a guide wire lumen. An inner tube 40 whose rear end is opened as a guide wire port and whose distal end is fixed to the distal end portion of the balloon 30 and whose distal end is opened and an inner tube 40 having a straight portion 51 and a tapered portion 52, And a core wire 50 which is inserted into the lumen of the shaft 10 at the distal end side with the tapered portion 52 as a tip end side and the core wire 50 includes a straight portion 51, the inner peripheral surface of the rear end shaft 20 is welded With that it is fixed, in the distal end side of the straight portion 51, and is press-fitted between the outer peripheral surface of the leading end side shaft 10, the inner peripheral surface and an inner tube 40 of.

1, reference numeral 60 denotes a hub mounted on the rear end of the rear end shaft 20, and reference numeral 70 denotes a strain relief.

The distal end shaft 10 of the balloon catheter 100 is formed of a resin tube. The distal end shaft 10 is provided with a lumen (expansion lumen) for allowing the fluid for expanding the balloon 30 to flow.

The outer diameter (D 1 ) of the resin tube constituting the distal end shaft 10 is usually 0.7 to 1.0 mm.

The inner diameter d 1 of the resin tube constituting the distal end shaft 10 is usually 0.65 to 0.95 mm.

The outer diameter D 1 and the inner diameter d 1 are diameters in a state where the core wire 50 is not inserted.

The length of the distal end shaft 10 is usually 150 to 450 mm, and 390 mm is a preferable example.

Examples of the constituent material of the front end shaft 10 (resin tube) include thermoplastic resins such as polyamide, polyether polyamide, polyurethane, polyester block amide (PEBAX) (registered trademark) and nylon, PEBAX is preferred.

It is preferable that the hardness of the tip side shaft 10 (resin tube) is 63 to 80 in hardness by the D type hardness meter.

A lumen (extension lumen) communicating with the lumen of the shaft 10 at the front end side is formed in the rear end shaft 20 connected to the rear end of the front end shaft 10.

The rear end shaft 20 is made of a metal tube (hypotube) such as stainless steel, a Ni-Ti alloy, a Cu-Mn-Al alloy or the like, and a spiral slit is formed at the tip of the metal tube .

As shown in Fig. 1, the metal tube constituting the rear end shaft 20 is inserted into the rear end portion of the resin tube constituting the front end shaft 10 and the rear end portion thereof is inserted into the hub 60, respectively.

The outside diameter of the metal tube constituting the rear end side shaft 20 is usually 0.5 to 0.8 mm.

The inner diameter of the metal tube constituting the rear end shaft 20 is usually 0.4 to 0.7 mm.

The length of the rear end side shaft 20 is usually 900 to 1500 mm.

A balloon 30 is mounted on the distal end of the distal shaft 10.

The balloon 30 is expanded by the liquid that flows through the lumens of the distal shaft 10 and the rear shaft 20. As the liquid, physiological saline and a contrast agent can be mentioned.

The diameter of the balloon 30 at the time of expansion is usually 1.0 to 5.0 mm, preferably 2.0 to 3.5 mm.

The length of the balloon 30 is usually 5 to 40 mm, preferably 15 to 30 mm.

As the constituent material of the balloon 30, the same material as the balloon constituting the conventionally known balloon catheter can be used, and a suitable material is PEBAX.

The inner tube 40 constituting the balloon catheter 100 extends to the lumen of the distal shaft 10 and the inside (lumen) of the balloon 30 and has a lumen (guide wire lumen) Is formed.

The rear end of the inner tube 40 is opened at the side of the distal shaft 10, and the opening 41 serves as a guide wire port.

The distal end of the inner tube 40 is fixed to the distal end of the balloon 30 and an opening 42 is formed at the distal end of the inner tube 40.

The outer diameter D 2 of the inner tube 40 is usually 0.48 to 0.60 mm.

The inner diameter (d 2 ) of the inner tube 40 is usually 0.35 to 0.45 mm.

The distance L3 in the axial direction from the formation position of the opening 41 of the inner tube 40 which is the guide wire port to the rear end position of the balloon 30 is usually 150 to 300 mm.

The distance L4 in the axial direction from the position where the opening 41 of the inner tube 40 is formed to the tip of the rear end side shaft 20 is usually from 0 to 50 mm and preferably from 5 to 50 mm. It is particularly effective to adopt the configuration of the present invention when the distance L4 is 5 mm or more.

As the constituent material of the inner tube 40, there may be mentioned the same synthetic resin as the constituent material of the tip side shaft 10, and PEBAX among them is preferable.

The hardness of the tip side shaft 10 is preferably 63 to 80 in terms of hardness by a D type hardness meter.

The core wire 50 constituting the balloon catheter 100 comprises a straight portion 51 and a tapered portion 52. The core wire 50 is inserted into the lumen of the distal end shaft 10 with the tapered portion 52 as the distal end side and a part of the rear end side of the core wire 50 is inserted into the lumen of the distal end shaft 20, Respectively.

The core wire 50 is disposed on the rear end side of the straight portion 51 at an inner circumferential surface of the rear end side shaft 20 (the inner circumferential surface at a position spaced by 10 to 150 mm from the tip end position of the rear end shaft 20 toward the proximal end side And is firmly fixed to the rear end shaft 20 by spot welding.

The core wire 50 is press-fitted between the inner circumferential surface of the distal end shaft 10 and the outer circumferential surface of the inner tube 40 at the distal end side of the straight portion 51 (The shaft 51 is inserted and supported).

The straight portion 51 of the core wire 50 fixed to the inner peripheral surface of the rear end shaft 20 is pressed and fixed between the inner peripheral surface of the front end shaft 10 and the outer peripheral surface of the inner tube 40 The pressure input from the rear end side shaft 20 can be reliably transmitted to the front end side shaft 10 and a good pushability can be exhibited.

The length of the portion extending from the position where the guide wire port is formed to the leading end position of the rear end shaft 20 (the length of the portion in FIG. 1) is smaller than the fixing position of the core wire 50 (straight portion 51) (Indicated by (L4) in the figure), the rigidity of the shaft 10 on the front end side can be made sufficiently high, and kinking in that portion can be reliably prevented.

The core wire 50 is not completely fixed to the inner circumferential surface of the shaft 10 at the front end but the straight portion 51 is inserted between the inner circumferential surface of the shaft 10 and the outer circumferential surface of the inner tube 40 When the bending stress is applied to the distal shaft 10, the core wire 50 is moved (slidably moved) relative to the distal shaft 10 with respect to the distal shaft 10 because the core wire 50 is fixed , It is possible to secure good flexibility in the distal shaft 10. As a result, the distal shaft 10 can be smoothly inserted into the curved blood vessel.

When the tapered portion 52 of the core wire 50 is pressed between the inner circumferential surface of the distal end shaft 10 and the outer circumferential surface of the inner tube 40 instead of the straight portion 51, The core wire 50 can not be moved in the tip direction with respect to the core wire 50. Therefore, it is not possible to ensure the flexibility in which the core wire 50 is secured by relative movement in the tip direction.

When the core wire 50 moves in the rear end direction with respect to the distal shaft 10 and the press fitting of the tapered portion 52 is released, the core wire 50 and the distal end shaft 10, The contact of the tube 40 disappears, so that good pushability can not be exerted and generation of kinks at the rear end portion of the distal shaft 10 can not be prevented.

The diameter D 3 of the straight portion 51 of the core wire 50 is determined depending on the inner diameter d 1 of the resin tube constituting the distal shaft 10 and the outer diameter D 2 of the inner tube 40 And it is necessary that at least the value of D 3 / (d 1 -D 2 ) is adjusted to be larger than 1.0. The diameter (D 3 ) of the straight portion 51 is usually 0.1 to 0.3 mm.

The diameter D 3 of the straight portion 51 is preferably adjusted such that the value of D 3 / (d 1 -D 2 ) is 1.05 to 1.95.

The diameter D 3 is adjusted so that the value of D 3 / (d 1 -D 2 ) is in the range of 1.05 to 1.95 to adjust the inner diameter of the inner tube of the inner tube 40). As a result, the front end shaft 10 has excellent balance of rigidity and flexibility.

When the value of D 3 / (d 1 -D 2 ) is less than 1.05, the straight portion of the core wire can not be sufficiently fixed to the distal shaft. On the other hand, when the value of D 3 / (d 1 -D 2 ) exceeds 1.95, the straight portion of the core wire can not be press-fit between the inner peripheral surface of the distal end shaft and the outer peripheral surface of the inner tube, or the shaft cross- And the operability may be deteriorated in some cases.

In the balloon catheter 100 of the present embodiment, the cross-section of the distal end shaft 10 at the portion where the straight portion 51 of the core wire 50 is press-fitted is fixed in an elliptical shape Deformed into an elliptical shape).

And, the value of this as the long diameter of the ellipse (D 11) and, when the short diameter to that (D 12), (D 11 ) / (D 12) is 1.02 to 1.30.

If the value of (D 11 ) / (D 12 ) in the ellipse is 1.02 to 1.30, the matching performance of the tip shaft 10 with respect to other devices is not impaired and the improvement effect of the pushability according to the present invention , The effect of improving the rigidity at the rear end portion of the front end shaft can be sufficiently exhibited.

When the value of (D 11 ) / (D 12 ) is less than 1.02, the straight portion of the core wire inserted into the lumen of the distal shaft is not sufficiently press-fitted and fixed, The effect of improving the rigidity at the rear end portion can not be sufficiently exhibited. Alternatively, there is a possibility that the lumen (guide wire lumen) of the inner tube is closed.

On the other hand, when the value of (D 11 ) / (D 12 ) is more than 1.30, it is impossible to accommodate the tip shaft of such a sectional shape in the guide shell, May fall.

The distance L1 in the axial direction from the formation position of the opening 41 of the inner tube 40 which is the guide wire port to the distal end of the straight portion 51 of the core wire 50 is usually 1.0 to 50.0 mm.

When the distance L1 is too short, the core wire 50 (the straight portion 51) can not be sufficiently fixed (fitted and supported), the pushing ability is improved, the rigidity at the rear end portion of the distal- It is not possible to sufficiently exhibit the effect of improving the adhesion.

On the other hand, when the distance L1 is excessively long, the "directionality of bending" appears in the distal shaft 10, and the operability (insertion property with respect to the blood vessel) of the balloon catheter may decrease.

The length L2 of the tapered portion 52 of the core wire 50 varies depending on the distance L3 in the axial direction from the formation position of the opening 41 to the rear end position of the balloon 30, 250 mm.

The balloon catheter 100 according to the present embodiment is excellent in pushability when inserted into a blood vessel and is provided at the rear end portion of the distal end shaft 10 (from the position where the guide wire port is formed to the distal end position of the rear end shaft 20) And the tip shaft 10 can be smoothly inserted into a bent blood vessel since the tip end shaft 10 has appropriate flexibility.

Although the embodiment of the present invention has been described above, the present invention is not limited to these embodiments, and various modifications are possible.

For example, the diameter-reduced portion of the core wire may be intermittently reduced in diameter in the tip direction.

Further, a plurality of straight portions having different diameters may be connected to the core wire through the diameter reduction portion. In this case, any one of the straight portions is press-fitted between the inner peripheral surface of the shaft at the front end side and the outer peripheral surface of the inner tube.

100: balloon catheter
10: Tip shaft
20: rear end shaft
30: Balloon
40: Inner tube
41: opening (guide wire port)
42: opening
50: core wire
51: Straight portion
52:
60: Hub
70: Strain Relief

Claims (2)

A front end shaft including a resin tube,
A rear end shaft including a metal tube connected to a rear end of the front end shaft,
A balloon connected to a distal end of the distal shaft,
Wherein the balloon is inserted into the lumen of the distal end shaft and inside the balloon to form a guide wire lumen, the rear end of the distal end shaft is opened as a guide wire port, An inner tube whose tip is opened,
And a core wire having a straight portion and a diameter reduction portion and having the diameter reduction portion as a distal end side and being inserted into a lumen of the distal end shaft,
The rear end side of the core wire is fixed to the inner circumferential surface of the rear end shaft and the straight portion of the core wire is press-fitted between the inner circumferential surface of the distal end shaft and the outer circumferential surface of the inner tube,
(L1) in the axial direction from the forming position of the guide wire port to the tip of the straight portion of the core wire is 1.0 to 50.0 mm,
The straight portion of the core wire is press-fitted so that the cross-section of the distal end shaft in the portion where the straight portion is press-fitted becomes an elliptic shape, and the long diameter of the ellipse is D 11 and the short diameter is D 12 , Wherein the value of (D 11 ) / (D 12 ) is from 1.02 to 1.30. The method according to claim 1,
When that the inner diameter of the resin tube constituting the distal end side shaft (1 d), the outer diameter of the inner tube (D 2), the diameter of the straight portion of the core wire (D 3),
Wherein the value of D 3 / (d 1 -D 2 ) is from 1.05 to 1.95.
KR1020167008548A 2013-11-14 2014-10-23 Balloon catheter KR101788491B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013236311A JP5631475B1 (en) 2013-11-14 2013-11-14 Balloon catheter
JPJP-P-2013-236311 2013-11-14
PCT/JP2014/078178 WO2015072300A1 (en) 2013-11-14 2014-10-23 Balloon catheter

Publications (2)

Publication Number Publication Date
KR20160049546A KR20160049546A (en) 2016-05-09
KR101788491B1 true KR101788491B1 (en) 2017-10-19

Family

ID=52144997

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020167008548A KR101788491B1 (en) 2013-11-14 2014-10-23 Balloon catheter

Country Status (4)

Country Link
JP (1) JP5631475B1 (en)
KR (1) KR101788491B1 (en)
CN (1) CN105473177B (en)
WO (1) WO2015072300A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024035786A1 (en) * 2022-08-12 2024-02-15 Boston Scientific Scimed, Inc. Catheter with rapid exchange guidewire port and method of manufacture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6304886B2 (en) * 2014-10-28 2018-04-04 日本ライフライン株式会社 Balloon catheter
JP6222763B1 (en) * 2017-01-31 2017-11-01 日本ライフライン株式会社 Balloon catheter
WO2018181315A1 (en) 2017-03-31 2018-10-04 テルモ株式会社 Balloon catheter and method for manufacturing medical elongated body
CN107736884B (en) * 2017-10-19 2018-10-12 深圳北芯生命科技有限公司 Intravascular pressure with supporting mechanism measures conduit
JP2020062320A (en) * 2018-10-19 2020-04-23 朝日インテック株式会社 catheter
JP7352390B2 (en) 2019-06-19 2023-09-28 朝日インテック株式会社 catheter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002204832A (en) 2001-01-10 2002-07-23 Kawasumi Lab Inc Coiled marker, catheter and balloon catheter
JP2005028118A (en) 2003-06-18 2005-02-03 Nipro Corp Balloon catheter suited to kissing technique
JP2012020077A (en) 2010-07-16 2012-02-02 Kaneka Corp Balloon catheter
WO2013140669A1 (en) 2012-03-23 2013-09-26 テルモ株式会社 Balloon catheter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156594A (en) * 1990-08-28 1992-10-20 Scimed Life Systems, Inc. Balloon catheter with distal guide wire lumen
DE69322008T2 (en) * 1992-02-10 1999-06-10 Scimed Life Systems Inc INTRAVASCULAR CATHETER WITH A DISTAL GUIDE WIRE LUMEN
JP4774144B2 (en) * 2000-07-18 2011-09-14 川澄化学工業株式会社 Balloon catheter
JP2003164528A (en) * 2001-11-29 2003-06-10 Nippon Sherwood Medical Industries Ltd Balloon catheter
US9289576B2 (en) * 2004-06-17 2016-03-22 W. L. Gore & Associates, Inc. Catheter assembly
JP5626731B2 (en) * 2011-03-04 2014-11-19 朝日インテック株式会社 Balloon catheter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002204832A (en) 2001-01-10 2002-07-23 Kawasumi Lab Inc Coiled marker, catheter and balloon catheter
JP2005028118A (en) 2003-06-18 2005-02-03 Nipro Corp Balloon catheter suited to kissing technique
JP2012020077A (en) 2010-07-16 2012-02-02 Kaneka Corp Balloon catheter
WO2013140669A1 (en) 2012-03-23 2013-09-26 テルモ株式会社 Balloon catheter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024035786A1 (en) * 2022-08-12 2024-02-15 Boston Scientific Scimed, Inc. Catheter with rapid exchange guidewire port and method of manufacture

Also Published As

Publication number Publication date
JP2015093173A (en) 2015-05-18
JP5631475B1 (en) 2014-11-26
WO2015072300A1 (en) 2015-05-21
KR20160049546A (en) 2016-05-09
CN105473177A (en) 2016-04-06
CN105473177B (en) 2018-07-17

Similar Documents

Publication Publication Date Title
KR101788491B1 (en) Balloon catheter
EP2143462A2 (en) Rapid exchange catheter having a support mandrel
EP2517749A1 (en) Catheter
EP2389973A1 (en) Balloon catheter
US11065423B2 (en) Balloon catheter
CN105358208B (en) Catheter tube
US10617855B2 (en) Balloon catheter
EP2399641A1 (en) Balloon catheter
JP6304711B2 (en) Balloon catheter
EP2399642A1 (en) Balloon catheter
JP5154188B2 (en) Balloon catheter
JP6799901B2 (en) catheter
US9446217B2 (en) Catheter
KR101997373B1 (en) Balloon catheter
JP6804802B2 (en) Balloon catheter
JP6906883B2 (en) Balloon catheter
JP6399809B2 (en) Medical guidewire
JP2013106797A (en) Balloon catheter

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right