公开(公告)号：US07785274B2

公开(公告)日：2010-08-31

申请号：US11013384

申请日：2004-12-17

申请人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

发明人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

IPC分类号： A61M25/00

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end thereof and a second wire joined to a proximal end of the first wire. The first wire and the second wire are preferably joined to each other by welding, providing a layer joint therebetween. The joint is of a curved shape, particularly a convex curved shape that is convex toward the proximal end of the wire body. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section. This region of the wire body possesses characteristics such that the region is fracturable near a terminal end of the straight section at a fracture position on other than the joint.

摘要翻译： 引导线包括具有设置在其远端处的第一线的线主体和连接到第一线的近端的第二线。 第一线和第二线优选通过焊接彼此连接，在它们之间提供层接合。 接头是弯曲形状，特别是凸起的弯曲形状，其朝向线体的近端凸出。 在接头中，第一线材料的至少一个部件（例如Ti）朝向近端减小，并且第二线材料的至少一个部件（例如，Fe）朝向远端减小。 当在包括接头的线体的区域上进行拉伸试验时，线体的区域在拉伸载荷和延伸率图中具有基本向上向右延伸的弹性部分，基本上水平地延伸的屈服部分 或从弹性部分向上或向右的右侧，以及从屈服部分向右向上延伸的基本上直的部分。 线体的该区域具有这样的特性，使得该区域在除了接头之外的断裂位置处在直线部分的终端附近是可断裂的。

公开(公告)号：US20120310218A1

公开(公告)日：2012-12-06

申请号：US13585319

申请日：2012-08-14

申请人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

发明人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

IPC分类号： A61M25/01

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end and a second wire joined to a proximal end of the first wire at a joint by welding. The joint is curved. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section.

摘要翻译： 引导线包括具有设置在远端的第一线的线主体和通过焊接在接头处连接到第一线的近端的第二线。 关节弯曲。 在接头中，第一线材料的至少一个部件（例如Ti）朝向近端减小，并且第二线材料的至少一个部件（例如，Fe）朝向远端减小。 当在包括接头的线体的区域上进行拉伸试验时，线体的区域在拉伸载荷和延伸率图中具有基本向上向右延伸的弹性部分，基本上水平地延伸的屈服部分 或从弹性部分向上或向右的右侧，以及从屈服部分向右向上延伸的基本上直的部分。

公开(公告)号：US09033004B2

公开(公告)日：2015-05-19

申请号：US13477616

申请日：2012-05-22

申请人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

发明人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

IPC分类号： B21F15/02 ,  A61B5/00 ,  A61M25/09

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end and a second wire joined to a proximal end of the first wire at a joint by welding. The joint is curved. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section.

摘要翻译： 引导线包括具有设置在远端的第一线的线主体和通过焊接在接头处连接到第一线的近端的第二线。 关节弯曲。 在接头中，第一线材料的至少一个部件（例如Ti）朝向近端减小，并且第二线材料的至少一个部件（例如，Fe）朝向远端减小。 当在包括接头的线体的区域上进行拉伸试验时，线体的区域在拉伸载荷和延伸率图中具有基本向上向右延伸的弹性部分，基本上水平地延伸的屈服部分 或从弹性部分向上或向右的右侧，以及从屈服部分向右向上延伸的基本上直的部分。

公开(公告)号：US08313445B2

公开(公告)日：2012-11-20

申请号：US12842458

申请日：2010-07-23

申请人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

发明人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

IPC分类号： A61M25/00

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end and a second wire joined to a proximal end of the first wire at a joint by welding. The joint is curved. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section.

摘要翻译： 引导线包括具有设置在远端的第一线的线主体和通过焊接在接头处连接到第一线的近端的第二线。 关节弯曲。 在接头中，第一线材料的至少一个部件（例如Ti）朝向近端减小，并且第二线材料的至少一个部件（例如，Fe）朝向远端减小。 当在包括接头的线体的区域上进行拉伸试验时，线体的区域在拉伸载荷和延伸率图中具有基本向上向右延伸的弹性部分，基本上水平地延伸的屈服部分 或从弹性部分向上或向右的右侧，以及从屈服部分向右向上延伸的基本上直的部分。

公开(公告)号：US20050152731A1

公开(公告)日：2005-07-14

申请号：US11013384

申请日：2004-12-17

申请人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

发明人： Katsuro Mishima ,  Yutaka Itou ,  Hiraku Murayama ,  Hideo Satou

IPC分类号： A61M25/01 ,  A61M25/09 ,  B41J2/25

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end thereof and a second wire joined to a proximal end of the first wire. The first wire and the second wire are preferably joined to each other by welding, providing a layer joint therebetween. The joint is of a curved shape, particularly a convex curved shape that is convex toward the proximal end of the wire body. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section. This region of the wire body possesses characteristics such that the region is fracturable near a terminal end of the straight section at a fracture position on other than the joint.

摘要翻译： 引导线包括具有设置在其远端处的第一线的线体和连接到第一线的近端的第二线。 第一线和第二线优选通过焊接彼此连接，在它们之间提供层接合。 接头是弯曲形状，特别是凸起的弯曲形状，其朝向线体的近端凸出。 在接头中，第一线材料的至少一个部件（例如Ti）朝向近端减小，并且第二线材料的至少一个部件（例如，Fe）朝向远端减小。 当在包括接头的线体的区域上进行拉伸试验时，线体的区域在拉伸载荷和延伸率图中具有基本向上向右延伸的弹性部分，基本上水平地延伸的屈服部分 或从弹性部分向上或向右的右侧，以及从屈服部分向右向上延伸的基本上直的部分。 线体的该区域具有这样的特性，使得该区域在除了接头之外的断裂位置处在直线部分的终端附近是可断裂的。

公开(公告)号：US20120228273A1

公开(公告)日：2012-09-13

申请号：US13477616

申请日：2012-05-22

申请人： Katsuro MISHIMA ,  Yutaka Itou ,  Hiraku Maruyama ,  Hideo Satou

发明人： Katsuro MISHIMA ,  Yutaka Itou ,  Hiraku Maruyama ,  Hideo Satou

IPC分类号： B23K11/00

CPC分类号： A61M25/09 ,  A61M2025/09091 ,  A61M2025/09133 ,  A61M2025/0915

摘要： A guide wire includes a wire body having a first wire disposed at a distal end and a second wire joined to a proximal end of the first wire at a joint by welding. The joint is curved. In the joint, at least one component (e.g., Ti) of the material of the first wire decreases toward the proximal end and at least one component (e.g., Fe) of the material of the second wire decreases toward the distal end. When a tensile test is conducted on a region of the wire body including the joint, the region of the wire body has, in a tensile load and elongation diagram, an elastic section extending substantially straight upwardly to the right, a yield section extending substantially horizontally or upwardly to the right from the elastic section, and a substantially straight section extending upwardly to the right from the yield section.

公开(公告)号：US20070265552A1

公开(公告)日：2007-11-15

申请号：US11878140

申请日：2007-07-20

申请人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

发明人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

IPC分类号： A61M25/09

CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09108

摘要： A method of making a guide wire involves butting a connection end face at a proximal end of a first wire against a connection end face at a distal end of a second wire while applying voltage and a pressing force to weld together the first and second wires at a welded portion. The welded portion forms a projection that projects outwardly in an outer peripheral direction relative to portions of the first and second wire adjacent the projection. The outer dimension of the projection at the welded portion is adjusted so that upon completing adjusting the outer dimension of the projection the projection still projects outwardly in the outer peripheral direction relative to the portions of the first and second wire adjacent the projection.

公开(公告)号：US20070232957A1

公开(公告)日：2007-10-04

申请号：US11797328

申请日：2007-05-02

申请人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

发明人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

IPC分类号： A61M25/01

CPC分类号： A61M25/09033 ,  A61M25/09 ,  A61M2025/09083 ,  A61M2025/0915 ,  B21F15/08

摘要： A guide wire includes a first wire disposed on the distal side, and a second wire disposed on the proximal side and made from a material having an elastic modulus larger than that of the first wire. The first wire and the second wire are joined to each other by welding. The second wire has, in the vicinity of the welded portion, a small cross-sectional area portion having a cross-sectional area smaller than that of a proximal end portion of the first wire. The outer diameter of the small cross-sectional area portion is gradually reduced in the direction toward the distal end. The first wire may be made from a superelastic alloy, whereas the second wire may be made from a stainless steel. The first wire and the second wire may be welded to each other by a butt resistance welding process. Since the change in rigidity of the guide wire becomes smooth in the longitudinal direction, the operationality and kink resistance of the guide wire are improved.

摘要翻译： 引导线包括设置在远侧的第一线，以及设置在近侧的由具有大于第一线的弹性模量的材料制成的第二线。 第一线和第二线通过焊接彼此接合。 第二线在焊接部附近具有截面积小于第一线的基端部的截面积的小截面积部。 小横截面积部分的外径在朝向远端的方向上逐渐减小。 第一线可以由超弹性合金制成，而第二线可以由不锈钢制成。 第一线和第二线可以通过对接电阻焊接方法彼此焊接。 由于导丝的刚性的变化在长度方向上变得平滑，所以导丝的操作性和抗扭结性提高。

公开(公告)号：US07892187B2

公开(公告)日：2011-02-22

申请号：US11878140

申请日：2007-07-20

申请人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

发明人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

IPC分类号： A61M25/00

CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09108

摘要： A method of making a guide wire involves butting a connection end face at a proximal end of a first wire against a connection end face at a distal end of a second wire while applying voltage and a pressing force to weld together the first and second wires at a welded portion. The welded portion forms a projection that projects outwardly in an outer peripheral direction relative to portions of the first and second wire adjacent the projection. The outer dimension of the projection at the welded portion is adjusted so that upon completing adjusting the outer dimension of the projection the projection still projects outwardly in the outer peripheral direction relative to the portions of the first and second wire adjacent the projection.

摘要翻译： 制造导丝的方法包括将第一线的近端处的连接端面与第二线的远端处的连接端面对接，同时施加电压和压力以将第一和第二线焊接在一起 焊接部分。 焊接部形成相对于邻近突起的第一和第二线的部分在外周方向向外突出的突起。 调整焊接部分处的突起的外部尺寸，使得在完成调整突起的外部尺寸后，突出部相对于邻近突起的第一和第二线的部分在外周方向上仍向外突出。

公开(公告)号：US20070199607A1

公开(公告)日：2007-08-30

申请号：US11797073

申请日：2007-04-30

申请人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

发明人： Hiraku Murayama ,  Akihiko Umeno ,  Jun Iwami ,  Yutaka Itou ,  Youki Aimi

IPC分类号： F16L11/14

CPC分类号： A61M25/09 ,  A61M2025/09083 ,  A61M2025/09108

摘要： A method of making a guide wire involves butting a connection end face at a proximal end of a first wire against a connection end face at a distal end of a second wire while applying voltage and a pressing force to weld together the first and second wires at a welded portion. The welded portion forms a projection that projects outwardly in an outer peripheral direction relative to portions of the first and second wire adjacent the projection. The outer dimension of the projection at the welded portion is adjusted so that upon completing adjusting the outer dimension of the projection the projection still projects outwardly in the outer peripheral direction relative to the portions of the first and second wire adjacent the projection.