WO2013080729A1 - 粥腫切除カテーテル - Google Patents
粥腫切除カテーテル Download PDFInfo
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- WO2013080729A1 WO2013080729A1 PCT/JP2012/078051 JP2012078051W WO2013080729A1 WO 2013080729 A1 WO2013080729 A1 WO 2013080729A1 JP 2012078051 W JP2012078051 W JP 2012078051W WO 2013080729 A1 WO2013080729 A1 WO 2013080729A1
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- WIPO (PCT)
- Prior art keywords
- tubular body
- tip
- internal space
- shaft
- tube
- Prior art date
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Classifications
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- 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
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320783—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions through side-hole, e.g. sliding or rotating cutter inside catheter
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- 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
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
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- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22071—Steering
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- 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
- A61B2017/320064—Surgical cutting instruments with tissue or sample retaining means
Definitions
- the present invention relates to a catheter that is inserted into a blood vessel in order to remove atheroma attached to the inner wall of the blood vessel.
- treatment has been performed to remove atheroma that has occurred in a blood vessel by inserting a catheter into the blood vessel.
- the catheter used for this treatment has an opening in the side wall. The catheter is inserted into the blood vessel until the opening faces the atheroma. When the balloon provided in the vicinity of the opening is expanded, the opening approaches the atheroma, and the atheroma enters the lumen of the catheter through the opening.
- a cutter is provided in the lumen of the catheter so as to be movable in the axial direction. The cutter is driven and transmitted from the motor and rotated in the lumen. The atheroma that has entered the lumen is removed by being moved through the lumen while the cutter is rotated. The excised atheroma is accommodated in the lumen of the catheter (Patent Documents 1 and 2).
- the catheter described above is inserted into the blood vessel while being guided by the guide wire.
- the blood vessel itself is often curved, and when the catheter is inserted into the blood vessel, the tip of the catheter often comes into contact with the inner wall of the blood vessel. Therefore, it is desired that the distal end of the catheter has flexibility so as to correspond to the shape of the blood vessel and does not damage the inner wall of the blood vessel.
- a nose cone is known as a catheter tip structure (Patent Document 3).
- the nose cone is provided inside a resin tube with a spiral wire rod as a core. Further, a marker that can be detected by X-rays is provided at the tip of the nose cone.
- the tip portion of the conventional catheter described above has a problem that it is easily bent when the catheter is inserted into a blood vessel.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide means that can flexibly change its posture upon insertion into a blood vessel and increase the amount capable of accommodating a resected atheroma. It is in.
- the atherectomy catheter according to the present invention has an opening in the side wall, and is positioned in the vicinity of the opening in the inner space of the first tube having the tip opened and the first tube, A cutter movable in the axial direction of the first tubular body; and a distal end portion connected to the distal end of the first tubular body.
- the distal end portion is connected to the distal end of the first tubular body with a continuous inner space, and is connected to the distal end of the second tubular body made of a resin having a higher rigidity than the first tubular body.
- the internal space is connected continuously, and the third tube made of resin that is reduced in diameter from the tip of the second tube to a tapered shape, and the outer diameter is smaller than the outer diameter of the tip of the second tube.
- the diameter is reduced to a tapered shape by the third tubular body and connected to the fourth tubular body having a smaller diameter than the second tubular body, even if the diameter of the second tubular body is increased to increase the volume of the internal space, It is easy to insert the tip of the tumor resection catheter into the blood vessel.
- the third tubular body and the fourth tubular body have a double tubular structure. Thus, the strength of the portion corresponding to the third tubular body is increased.
- the atherectomy catheter according to the present invention has an opening in the side wall and is positioned near the opening in the inner space of the first tube having the tip opened and the first tube, A cutter movable in the axial direction of the first tubular body; and a distal end portion connected to the distal end of the first tubular body.
- the distal end portion is connected to the distal end of the first tubular body with an internal space being continuous, the resin-made second tubular body reinforced by a core material, and the inner space at the distal end of the second tubular body.
- a third tube made of resin that is continuously connected and has a diameter reduced to a tapered shape from the tip of the second tube, and an outer diameter smaller than the outer diameter of the tip of the second tube,
- a resin-made fourth tube having one end projecting outward from the tip of the third tube and the second end extending through the internal space of the third tube to the internal space of the second tube. And having a body.
- the core material may be a tube formed by assembling a wire into a mesh.
- a cylindrical member connected to the first tubular body and a wire extending from the cylindrical member to the third tubular body side may be provided on the inner surface side of the second tubular body.
- the wire may have a spiral shape.
- the second end side of the fourth tubular body may be expanded in a tapered shape. Thereby, it becomes easy to insert the guide wire from the second end side of the fourth tubular body.
- the fourth tubular body may have a through hole in the side wall on the second end side.
- the first tubular body may have a balloon that bulges outward from the side wall.
- the distal end portion can be flexibly inserted into the blood vessel. Change posture. Moreover, since the diameter of a 2nd pipe body can be enlarged, the quantity which can accommodate the resected atheroma can be increased.
- FIG. 1 is a view showing an external configuration of the atherectomy catheter 10 in a state where the balloon 23 is deflated.
- FIG. 2 is an enlarged cross-sectional view showing an internal configuration in the vicinity of the distal end portion 13 of the atherectomy catheter 10.
- FIG. 3 is a schematic diagram showing a state where the balloon 23 is expanded in the blood vessel 50.
- FIG. 4 is a schematic diagram showing a state in which the atheroma 51 has been excised in the blood vessel 50.
- FIG. 5 is an enlarged cross-sectional view showing a modified example of the atherectomy catheter 10.
- the atherectomy catheter 10 includes a shaft 11, a cutter 12 provided in the shaft 11, a distal end portion 13 constituting the distal end of the shaft 11, and a proximal end of the shaft 11.
- the base end part 14 connected and the drive part 15 which provides rotational drive to the cutter 12 are comprised.
- the atherectomy catheter 10 is used as a medical instrument that is inserted into a blood vessel to remove the atheroma.
- the shaft 11 is a tube that can contain the cutter 12 inside.
- the shaft 11 is made of, for example, a circular tube made of medical stainless steel or a synthetic resin, and has the flexibility to bend elastically according to the curved shape of the blood vessel.
- the front end and the base end of the shaft 11 are open.
- the outer diameter of the shaft 11 is set according to the inner diameter of a blood vessel to be inserted, for example, a coronary artery.
- the inner diameter of the shaft 11 is set according to the outer diameter of the cutter 12.
- the outer diameter and inner diameter of the shaft 11 are substantially uniform over the axial direction 101 of the shaft 11.
- the length of the shaft 11 in the axial direction 101 is set in consideration of the length from a catheter insertion part such as a human limb to the affected part.
- an opening 20 is formed in the vicinity of the tip 13 of the shaft 11.
- the opening 20 is formed by cutting out a part of the side wall of the shaft 11.
- the shape and size of the opening 20 are set in consideration of the shape and size of the atheroma that will be formed in the affected area.
- the shaft 11 corresponds to the first tubular body.
- a cutter 12 is provided in the vicinity of the opening 20 in the internal space of the shaft 11.
- the cutter 12 has a blade portion 21 and a shaft 22.
- the blade portion 21 has a substantially cylindrical shape, and its outer diameter is slightly smaller than the inner diameter of the shaft 11.
- a plurality of blades are formed on the distal end side of the blade portion 21 so as to extend radially from the center.
- a through hole is formed in the center of the blade portion 21 along the axial direction 101.
- the shaft 22 extends from the base end of the blade portion 21 to the outside of the base end portion 14.
- the shaft 22 is an elongated tube, and its internal space communicates with the through hole of the blade portion 21.
- the internal space of the shaft 22 and the through hole of the blade portion 21 are for inserting a guide wire.
- the shaft 22 is connected to the drive unit 15.
- the blade 21 rotates as the shaft 22 rotates as a result of being transmitted from the drive unit 15. Further, when the shaft 22 is moved in the axial direction 101, the blade portion 21 moves in the axial direction 101 in the internal space of the shaft 11.
- a balloon 23 is provided at a position on the shaft 11 opposite to the opening 20.
- the balloon 23 can expand outward from the side wall of the shaft 11 and is folded and is in close contact with the side wall of the shaft 11 until the atherectomy catheter 10 is inserted into the blood vessel.
- the material of the balloon 23 is preferably a biocompatible material. Specific examples include polyurethane, polyethylene, polyester, polypropylene, polyamide, polyamide elastomer, polytetrafluoroethylene, and polyvinylidene fluoride.
- the base end side of the balloon 11 is connected to an outer tube 24 provided along the side wall of the shaft 11.
- the internal space of the outer tube 24 is in communication with the internal space of the balloon 11.
- the outer tube 24 extends to the base end portion 14, and the internal space of the outer tube 24 is connected to the port 41 of the base end portion 14.
- a liquid such as physiological saline injected from the port 41 of the proximal end portion 14 flows into the balloon 11, the balloon 23 is inflated in the blood vessel.
- the outer tube 24 is a molded body of soft plastic that can be elastically deformed, such as polyamide, polyamide elastomer, or polyetheramide.
- a tip portion 13 is connected to the tip of the shaft 11.
- the distal end portion 13 includes a blade tube 31, a reduced diameter portion 32, and a distal end tip 33.
- the blade tube 31 is a circular tube that is open on both sides.
- the blade tube 31 is connected to the tip of the shaft 11, and its internal space communicates with the internal space of the shaft 11.
- the blade tube 31 is made of a core material 34 reinforced by elastically deformable soft plastic such as polyamide, polyamide elastomer, or polyetheramide.
- the core material 34 is embedded in the side wall of the blade tube 31. More specifically, the blade tube 31 has a two-layer structure of an inner layer and an outer layer made of the soft plastic described above, and the core material 34 is sandwiched between the layers to be embedded in the blade tube 31. .
- the core material 34 is formed by forming a wire shape such as medical stainless steel into a mesh and forming a cylindrical shape.
- the rigidity of the side wall of the blade tube 31 is enhanced by the core material 34.
- the inner diameter of the blade tube 31 is about the same as the outer diameter of the shaft 11, and the blade tube 11 is fitted to the tip of the shaft 11 from the outside.
- the outer diameter and inner diameter of the blade tube 31 are substantially uniform over the axial direction 101.
- the blade tube 31 corresponds to a second tubular body. In FIG. 2, the core material 34 is not shown.
- the reduced diameter portion 32 is a circular tube that is open at both sides and has a tapered outer diameter.
- the reduced diameter portion 32 is connected to the tip of the blade tube 31, and its internal space is communicated with the internal space of the blade tube 31.
- the reduced diameter portion 32 is made of an elastically deformable soft plastic such as polyamide or polyetheramide.
- the inner diameter on the proximal end side of the reduced diameter portion 32 is approximately the same as the outer diameter at the distal end of the blade tube 31, and the reduced diameter portion 32 is fitted into the distal end of the blade tube 31 from the outside and thermally welded.
- the inner diameter on the distal end side of the reduced diameter portion 32 is approximately the same as the outer diameter of the central portion of the distal tip 33.
- the wall thickness decreases toward the distal end side.
- the reduced diameter portion 32 corresponds to a third tubular body.
- the distal tip 33 is a circular tube that is open on both sides and has a proximal end 36 that is tapered and has an outer diameter that is expanded.
- the distal tip 33 is connected to the distal end of the reduced diameter portion 32, and the internal space thereof is communicated with the internal space of the reduced diameter portion 32.
- the tip 35 of the tip tip 33 protrudes from the tip of the reduced diameter portion 32 to the outside in the axial direction 101.
- the proximal end 36 side of the distal tip 33 extends in the axial direction 101 in the internal space of the reduced diameter portion 32, and the proximal end 36 reaches the internal space of the blade tube 31.
- the diameter-reduced portion 32 from the tip side portion of the blade tube 31 has a double tube structure in which the blade tube 31 and the reduced-diameter portion 32 are outside and the tip tip 33 is inside.
- the distal tip 33 is enlarged in diameter on the base end 36 side, but the outer diameter and inner diameter of the other portions are substantially equal.
- the outer diameter of the uniform portion is smaller than the inner diameter of the blade tube 31 and is about the same as the inner diameter of the tip of the reduced diameter portion 32. Further, the diameter of the base end 36 is increased, but the maximum diameter is smaller than the inner diameter of the blade tube 31. Therefore, in the internal space of the blade tube 31 and the reduced diameter portion 32, there is a gap between the outer surface of the tip tip 33 and the inner surface of the blade tube 31 and the reduced diameter portion 32.
- the tip chip 33 is made of an elastically deformable soft plastic such as polyamide or polyether amide.
- the distal tip 33 is inserted and thermally welded to the distal end of the reduced diameter portion 32.
- the distal tip 33 corresponds to a fourth tubular body.
- a marker that can be confirmed by X-rays or the like may be provided at the tip of the tip chip 33.
- a proximal end portion 14 is provided at the proximal end of the shaft 11.
- the base end portion 14 is a cylindrical member having an internal space that is continuous with the internal space of the shaft 11.
- the base end portion 14 is a molded body of a resin such as polypropylene or ABS.
- the proximal end portion 14 can be a handle in operations such as when the shaft 11 is inserted into and removed from the blood vessel.
- the base end portion 14 is provided with a port 41 extending in a direction intersecting the axial direction 101. Another device such as a syringe is connected to the port 41, and a fluid such as physiological saline flowing in and out from the other device flows into and out of the outer tube 24 from the base end portion 14.
- the base end portion 14 may be provided with another port continuous with the internal space of the shaft 11. Such a port is used, for example, for the purpose of recovering a resected atheroma that has entered the shaft 11.
- the shaft 22 of the cutter 12 extends from the opening on the base end side of the base end portion 14, and the drive unit 15 is connected to the shaft 22.
- the drive unit 15 includes a motor and a battery. The rotation of the motor of the drive unit 15 is transmitted to the shaft 22.
- the atherectomy catheter 10 is used when the atheroma 51 formed on the inner wall of the blood vessel 50 is excised.
- the atherectomy catheter 10 is inserted into the blood vessel 50 from the distal end portion 13 with the balloon 23 deflated (see FIG. 1).
- a guide wire is inserted into the blood vessel 50 in advance.
- the guide wire is inserted into the blood vessel 50 by a known method.
- the atherectomy catheter 10 is inserted into the blood vessel 50 from the distal end portion 13.
- the distal end portion 13 is advanced to the atheroma 51 of the blood vessel 50 while being elastically curved along the guide wire. Since the distal end portion 13 is reduced in a tapered shape by the reduced diameter portion 32 and connected to the distal end tip 33 having a smaller diameter than the blade tube 31, the inner diameter of the blade tube 31 is increased to increase the volume of the internal space. However, since the distal tip 33 having a small diameter is flexible, it can be easily inserted into the blood vessel 50. Further, the blade tube 31 has a core member 34 and has higher rigidity than that of soft plastic. Further, the blade tube 31 has a double tube structure with the tip 33 at the tip side and the reduced diameter portion 32. Therefore, bending of the distal end portion 13 when the distal end portion 13 is inserted into the blood vessel 50 is suppressed.
- the deflated balloon 23 is expanded by the fluid flowing into the outer tube 24 from the port 41.
- the expanded balloon 23 abuts against the inner wall of the blood vessel 50 opposite to the atheroma 51, whereby the opening 20 is brought into close contact with the atheroma 51, and a part of the atheroma 51 enters the inner space of the shaft 11 from the opening 20. enter in.
- the motor of the drive unit 15 is driven, and the blade unit 21 is rotated through the shaft 22 of the cutter 12.
- the shaft 22 is advanced toward the distal end side in the axial direction 101 with respect to the shaft 11, so that the rotating blade portion 21 contacts the atheroma 51, and the atheroma 51 is excised by the blade portion 21. Is done.
- the excised piece 52 of the atheroma 51 enters the internal space of the blade tube 31 through the internal space of the shaft 11. Since the blade tube 31 is reinforced with soft plastic by the core material 34, the inner diameter of the blade tube 31 is increased to increase the volume of the internal space in which the piece 52 can be accommodated. There is no need to thicken. Thereby, it is suppressed that the outer diameter of the front-end
- the balloon 23 is deflated, and the atherectomy catheter 10 is pulled out of the blood vessel 50 and withdrawn.
- the blade tube 31 reinforced by the core member 34 is used so that the blade tube 31 has higher rigidity than the shaft 11, but the reinforcement by the core member 34 is not essential.
- a tube having higher rigidity than the shaft 11 may be used instead of the blade tube 31 depending on the type and composition of the synthetic resin.
- a cylindrical member 37 connected to the shaft 11 and a wire 38 extending from the cylindrical member 37 to the reduced diameter portion 32 side are provided on the inner surface side of the blade tube 31.
- the wire 38 has a spiral shape along the inner surface of the blade tube 31.
- the cylindrical member 37 and the wire 38 are made of, for example, medical stainless steel.
- the wire 38 may be formed integrally with the cylindrical member 37, or a member formed as a separate member from the cylindrical member 37 may be connected to the cylindrical member 37.
- a plurality of linear wires are arranged apart from each other in the radial direction of the blade tube 31, and the reduced diameter portion is formed from the cylindrical member 37. 32 may be extended.
- the rigidity does not change suddenly at the connecting portion between the shaft 11 and the blade tube 31, the bending does not occur at the connecting portion, and the shaft 11 and A smooth deformation of the blade tube 31 is realized.
- a through hole 39 may be formed on the side wall of the tip end 33 on the base end 36 side and covered with the reduced diameter portion 32.
- Two through holes 39 are formed at different positions in the axial direction 101 of the distal tip 33 and at positions facing the axis of the distal tip 33.
- the excised piece 52 of the atheroma 51 enters the internal space of the blade tube 31 through the internal space of the shaft 11.
- This piece 51 is taken out from the inside of the blade tube 31 in order to analyze its components after the treatment.
- the piece 51 is taken out by, for example, a method of causing the piece 51 to flow out of the opening 20 by injecting physiological saline from the tip 35 side of the tip chip 33.
- physiological saline flows out not only from the proximal end 36 of the distal tip 33 but also from the through hole 39
- the piece 51 accommodated in the space between the distal tip 33 and the reduced diameter portion 32 also opens the opening 20. It is spilled toward.
- the number of through holes 39 may be one, or three or more. Further, the through hole 39 may be arranged on the same side with respect to the axis of the tip tip 33.
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Abstract
Description
以下に、図3,4が参照されつつ粥腫切除カテーテル10の使用方法が説明される。
前述されたように、粥腫切除カテーテル10によれば、ブレードチューブ31から縮径部32によってテーパ形状に縮径されて先端チップ33へ接続されているので、血管50への挿入に際して先端部13が柔軟に姿勢変化する。また、ブレードチューブ31の径を大きくすることができるので、切除された粥腫50の欠片52を収容可能な量を増加することができる。
なお、本実施形態では、芯材34により補強されたブレードチューブ31が用いられることにより、ブレードチューブ31がシャフト11より剛性が高いものとされているが、芯材34による補強は必須ではなく、例えば、合成樹脂の種類や組成などによってシャフト11より剛性が高いチューブがブレードチューブ31の代わりに用いられてもよい。
11・・・シャフト(第1管体)
12・・・カッター
13・・・先端部
20・・・開口
23・・・バルーン
31・・・ブレードチューブ(第2管体)
32・・・縮径部(第3管体)
33・・・先端チップ(第4管体)
35・・・先端(第1端)
36・・・基端(第2端)
37・・・円筒部材
38・・・線材
39・・・貫通孔
Claims (8)
- 側壁に開口を有し、先端が開口された第1管体と、
上記第1管体の内部空間において上記開口付近に位置されており、上記第1管体の軸線方向に移動可能なカッターと、
上記第1管体の先端に接続された先端部と、を具備してなり、
上記先端部は、
上記第1管体の先端に内部空間を連続させて接続されており、上記第1管体より剛性が高い樹脂製の第2管体と、
上記第2管体の先端に内部空間を連続させて接続されており、第2管体の先端からテーパ形状に縮径された樹脂製の第3管体と、
上記第2管体の先端の外径より小径な外径であり、第1端側が上記第3管体の先端から外側へ突出されており、第2端側が上記第3管体の内部空間を通じて上記第2管体の内部空間に延出された樹脂製の第4管体と、を有する粥腫切除カテーテル。 - 側壁に開口を有し、先端が開口された第1管体と、
上記第1管体の内部空間において上記開口付近に位置されており、上記第1管体の軸線方向に移動可能なカッターと、
上記第1管体の先端に接続された先端部と、を具備してなり、
上記先端部は、
上記第1管体の先端に内部空間を連続させて接続されており、芯材により補強された樹脂製の第2管体と、
上記第2管体の先端に内部空間を連続させて接続されており、第2管体の先端からテーパ形状に縮径された樹脂製の第3管体と、
上記第2管体の先端の外径より小径な外径であり、第1端側が上記第3管体の先端から外側へ突出されており、第2端側が上記第3管体の内部空間を通じて上記第2管体の内部空間に延出された樹脂製の第4管体と、を有する粥腫切除カテーテル。 - 上記芯材は、線材が網目に組まれて筒形状にされたものである請求項2に記載の粥腫切除カテーテル。
- 上記第2管体の内面側に、上記第1管体に接続される円筒部材、及び当該円筒部材から上記第3管体側へ延出された線材が設けられたものである請求項1から3のいずれかに記載の粥腫切除カテーテル。
- 上記線材は、螺旋形状をなすものである請求項4に記載の粥腫切除カテーテル。
- 上記第4管体の第2端側は、テーパ形状に拡径されたものである請求項1から5のいずれかに記載の粥腫切除カテーテル。
- 上記第4管体は、上記第2端側の側壁に貫通孔を有するものである請求項1から6のいずれかに記載の粥腫切除カテーテル。
- 上記第1管体は、側壁から外側へ膨らむバルーンを有する請求項1から7のいずれかに記載の粥腫切除カテーテル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/360,715 US9572594B2 (en) | 2011-11-28 | 2012-10-30 | Atherectomy catheter |
JP2013547070A JP6048415B2 (ja) | 2011-11-28 | 2012-10-30 | 粥腫切除カテーテル |
EP12853660.4A EP2786712B1 (en) | 2011-11-28 | 2012-10-30 | Atherectomy catheter |
ES12853660T ES2864221T3 (es) | 2011-11-28 | 2012-10-30 | Catéter de aterectomía |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-258406 | 2011-11-28 | ||
JP2011258406 | 2011-11-28 |
Publications (1)
Publication Number | Publication Date |
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WO2013080729A1 true WO2013080729A1 (ja) | 2013-06-06 |
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ID=48535197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/078051 WO2013080729A1 (ja) | 2011-11-28 | 2012-10-30 | 粥腫切除カテーテル |
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US (1) | US9572594B2 (ja) |
EP (1) | EP2786712B1 (ja) |
JP (1) | JP6048415B2 (ja) |
ES (1) | ES2864221T3 (ja) |
WO (1) | WO2013080729A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015217216A (ja) * | 2014-05-20 | 2015-12-07 | ニプロ株式会社 | カテーテル |
WO2015185871A1 (fr) * | 2014-06-05 | 2015-12-10 | Bernard Pain | Dispositif de decoupe et d'evacuation de tissus calcifies d'une valve cardiaque |
WO2016152548A1 (ja) * | 2015-03-20 | 2016-09-29 | テルモ株式会社 | カテーテルシステム及び処置方法 |
WO2017141923A1 (ja) * | 2016-02-15 | 2017-08-24 | テルモ株式会社 | 医療デバイスおよび処置方法 |
EP3103403A4 (en) * | 2014-02-06 | 2017-12-20 | Nipro Corporation | Catheter |
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EP3103403A4 (en) * | 2014-02-06 | 2017-12-20 | Nipro Corporation | Catheter |
JP2015217216A (ja) * | 2014-05-20 | 2015-12-07 | ニプロ株式会社 | カテーテル |
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WO2017141923A1 (ja) * | 2016-02-15 | 2017-08-24 | テルモ株式会社 | 医療デバイスおよび処置方法 |
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Also Published As
Publication number | Publication date |
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JP6048415B2 (ja) | 2016-12-21 |
JPWO2013080729A1 (ja) | 2015-04-27 |
US20140343584A1 (en) | 2014-11-20 |
EP2786712B1 (en) | 2021-03-24 |
EP2786712A1 (en) | 2014-10-08 |
US9572594B2 (en) | 2017-02-21 |
ES2864221T3 (es) | 2021-10-13 |
EP2786712A4 (en) | 2015-07-01 |
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