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公开(公告)号：US5782809A
公开(公告)日：1998-07-21
申请号：US646965
申请日：1996-05-08
申请人： Akihiko Umeno , Takahiro Kugo
发明人： Akihiko Umeno , Takahiro Kugo
CPC分类号： A61M25/0045 , A61M29/02 , A61M25/0054 , A61M25/0138
摘要： A vascular catheter includes a catheter body which is made up of an inner tube formed of a metal or an alloy and an outer tube formed of a synthetic resin covering the outside surface of the inner tube. The inner tube has one or more spiral slits in the distal end portion. A vascular dilatation instrument includes an inner tube, an outer tube disposed coaxially around the inner tube, and an inflatable member having one end attached to the inner tube and another end attached to the outer tube. At least one of the inner tube and the outer tube includes a main body section based on a tube formed of a metal or alloy and a distal section made of a synthetic resin. The tube made of the metal or the alloy has one or more spiral slits in the distal end portion. The metal is selected from the group consisting of steel, tungsten and copper. The alloy is selected from the group consisting of steel alloy, tungsten alloy and copper alloy.
摘要翻译： 血管导管包括由金属或合金形成的内管构成的导管体和由覆盖内管外表面的合成树脂形成的外管。 内管在远端部分具有一个或多个螺旋狭缝。 血管扩张器包括内管，同轴地设置在内管周围的外管，以及可膨胀构件，其一端连接到内管，另一端连接到外管。 内管和外管中的至少一个包括基于由金属或合金形成的管的主体部分和由合成树脂制成的远端部分。 由金属或合金制成的管在远端部分具有一个或多个螺旋狭缝。 金属选自钢，钨和铜。 该合金选自钢合金，钨合金和铜合金。
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公开(公告)号：US5569200A
公开(公告)日：1996-10-29
申请号：US492396
申请日：1995-06-19
申请人： Akihiko Umeno , Takahiro Kugo
发明人： Akihiko Umeno , Takahiro Kugo
CPC分类号： A61M25/0045 , A61M29/02 , A61M25/0054 , A61M25/0138
摘要： A vascular catheter includes a catheter body which is made up of an inner tube formed of a metal or a alloy and an outer tube formed of a synthetic resin covering the outside surface of the inner tube. The inner tube has one or more spiral slits in the distal end portion. A vascular dilatation instrument includes an inner tube, an outer tube disposed coaxially around the inner tube, an inflatable member having one end attached to the inner tube and another end attached to the outer tube. At least one of the inner tube and the outer tube includes a main body section based on a tube formed of a metal or alloy and a distal section made of a synthetic resin. The tube made of the metal or the alloy has one or more spiral slits in the distal end portion. The metal is selected from the grope consisting of steel, tungsten and copper. The alloy is selected from the grope of steel alloy, tungsten alloy and copper alloy.
摘要翻译： 血管导管包括由金属或合金形成的内管构成的导管体和由覆盖内管的外表面的合成树脂形成的外管。 内管在远端部分具有一个或多个螺旋狭缝。 血管扩张器包括内管，同轴地设置在内管周围的外管，可膨胀构件，其一端连接到内管，另一端连接到外管。 内管和外管中的至少一个包括基于由金属或合金形成的管的主体部分和由合成树脂制成的远端部分。 由金属或合金制成的管在远端部分具有一个或多个螺旋狭缝。 金属选自钢，钨和铜组成的。 该合金选自钢合金，钨合金和铜合金。
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公开(公告)号：US5507766A
公开(公告)日：1996-04-16
申请号：US186563
申请日：1994-01-26
CPC分类号： A61M25/104 , A61M25/0053 , A61M25/0119 , A61M2025/0004 , A61M2025/1079 , A61M25/005 , A61M25/0051 , A61M25/0054 , A61M25/0662
摘要： A vascular dilatation instrument 1 includes an outer tube 2, an inner tube 5 extending through the outer tube 2, and an inflatable member 3 having one end attached to the inner tube 5 and another end attached to the outer tube 2. The outer tube 2 includes a superelastic or pseudoelastic metal tube 2b and a synthetic resin tube 2a covering the metal tube, the metal tube 2b having a distal zone provided with a slit or perforations 2e so that the distal zone is more flexible and deformable than the remainder of the metal tube. Also provided is a catheter 100 comprising a main body section which includes a superelastic metal tube 101 and a synthetic resin layer 104 covering the metal tube, the metal tube 101 having a distal zone provided with a slit or perforations 106 so that the distal zone is more flexible and deformable than the remainder of the metal tube.
摘要翻译： 血管扩张器具1包括外管2，延伸穿过外管2的内管5和一端连接在内管5上的可膨胀件3，另一端连接在外管2上。外管2 包括超弹性或假弹性金属管2b和覆盖金属管的合成树脂管2a，金属管2b具有设置有狭缝或穿孔2e的远端区域，使得远端区域比金属的其余部分更具柔性和可变形性 管。 还提供了一种导管100，其包括主体部分，其包括超弹性金属管101和覆盖金属管的合成树脂层104，金属管101具有设置有狭缝或穿孔106的远端区域，使得远端区域 比金属管的其余部分更灵活和可变形。
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公开(公告)号：US5522832A
公开(公告)日：1996-06-04
申请号：US186594
申请日：1994-01-26
CPC分类号： A61M25/065 , A61M25/09041
摘要： A blood vessel piercing instrument includes an outer tube assembly and an inner needle assembly. The outer tube assembly has an outer tube and an outer tube hub attached to the rear end portion of said outer tube. The outer tube has a metal tubular member made of a superelastic metal and a resin tubular member which covers the outside surface of the metal tubular member and has the front end portion extending beyond the front end of the metal tubular member. The inner needle assembly includes an inner needle which is extractably inserted in said outer tube assembly and has a piercing edged surface formed at the front end protruding from said outer tube and an inner needle hub which is attached to the rear end portion of said inner needle and engages with the rear end of said outer tube hub. An inside diameter of said front end portion of said resin tubular member is smaller than the inside diameter of said metal tubular member and substantially equal to an outside diameter of said inner needle.
摘要翻译： 血管穿刺器具包括外管组件和内针组件。 外管组件具有附接到所述外管的后端部的外管和外管毂。 外管具有由超弹性金属制成的金属管状构件和覆盖金属管状构件的外表面的树脂管状构件，并且其前端部延伸超过金属管状构件的前端。 内针组件包括内针，该内针可抽出地插入到所述外管组件中，并且具有形成在从所述外管突出的前端的刺入边缘表面，以及内针毂，所述内针毂连接到所述内针的后端部 并与所述外管毂的后端接合。 所述树脂管状构件的所述前端部的内径小于所述金属管状构件的内径，并且基本上等于所述内针的外径。
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公开(公告)号：US5304140A
公开(公告)日：1994-04-19
申请号：US465164
申请日：1990-02-26
申请人： Takahiro Kugo , Kazuhito Ishihara
发明人： Takahiro Kugo , Kazuhito Ishihara
CPC分类号： A61M25/0045 , A61M25/0009 , A61M2025/0063 , A61M25/005
摘要： Disclosed is a catheter which is introduced into a blood vessel for the treatment or inspection of a diseased portion in the blood vessel. For facilitating the introducing operation of the catheter, a super-elastic wire is housed in the catheter body in a manner to extend in the longitudinal direction of the catheter body. The super-elastic wire may be fixed within the lumen of the catheter body, may be detachably provided, or may be embedded in a part of the catheter body. The exposed surface of the catheter body or the super-elastic wire may be covered with a layer of a watersoluble high molecular weight material. Also, an X-ray intransmissible material may be applied to the exposed surface of the catheter body or the super-elastic wire.
摘要翻译： PCT No.PCT / JP88 / 00851 Sec。 371日期1990年2月26日 102（e）日期1990年2月26日PCT提交1988年8月26日PCT公布。 出版物WO89 / 01799 日期为1989年3月9日。公开是导入血管中用于治疗或检查血管中病变部位的导管。 为了促进导管的引入操作，超弹性线以在导管体的长度方向延伸的方式容纳在导管体内。 超弹性线可以固定在导管主体的内腔内，可以可拆卸地设置，或者可以嵌入在导管主体的一部分中。 导管体或超弹性线的暴露表面可以被一层水溶性高分子量材料覆盖。 此外，可以将X射线不透性材料施加到导管体或超弹性线的暴露表面。
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公开(公告)号：US5069226A
公开(公告)日：1991-12-03
申请号：US515591
申请日：1990-04-27
申请人： Kiyoshi Yamauchi , Takahiro Kugo , Yasuo Miyano
发明人： Kiyoshi Yamauchi , Takahiro Kugo , Yasuo Miyano
IPC分类号： A61L31/02
CPC分类号： A61M25/09 , A61L31/022 , A61L2400/16 , A61M2025/09083 , A61M2025/09141 , A61M2205/0266
摘要： A catheter guide wire is for use in guiding of a catheter to a destination position in vessels in body and comprises a solid core wire of a Ti-Ni shape memory alloy and an outer jacket covering the core wire. In order to provide a plasticity to one end portion of the core wire, at least one end portion is made of a 45.0-51.0 at % Ni-0.5-5.0 at % Fe-Ti shape memory alloy and is heat treated at 400.degree.-500.degree. C. The end portion is provided with a pseudo elasticity at a temperature about 37.degree. and a plasticity at a temperature below 80.degree. C. Alternatively, the end portion may be made of a 50.3-52.0 at % Ni-Ti alloy and is heat treated at a temperature of 700.degree. C. In order to improve operability of the catheter guide wire, the remaining portion other than the end portion is made of provided with a comparatively high rigidity by a usual Ti-Ni shape memory alloy which is not heat treated. Alternatively, the remaining portion is covered with an inorganic layer. The inorganic layer is a coating and alternatively is a cladding. The solid core wire is covered with a synthetic resin layer to form the catheter guide wire.
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