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    Steerable Catheter Using Flat Pull Wires and Having Torque Transfer Layer Made of Braided Flat Wires
    12.
    发明申请
    Steerable Catheter Using Flat Pull Wires and Having Torque Transfer Layer Made of Braided Flat Wires 审中-公开
    使用扁平拉线的导向导管，并具有由编织扁平线制成的扭矩传递层

    公开(公告)号：US20140303599A1

    公开(公告)日：2014-10-09

    申请号：US14284026

    申请日：2014-05-21

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Wayne Heideman ,  Allan M. Fuentes ,  Richard E. Stehr ,  Sarah Cumming ,  Mark Dustrude

    IPC: A61M25/01

    CPC classification number: A61M25/01 ,  A61M25/0012 ,  A61M25/0045 ,  A61M25/0053 ,  A61M25/0147 ,  A61M2025/015

    Abstract: A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly may also be provided in the outer layer, and may be formed by braiding a plurality of flat wires into a wire mesh. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.

    Abstract translation: 导管组件包括由柔性材料制成的内衬和具有转向机构的外层。 转向机构包括至少一个扁平线和相应的内管，扁平线可以通过该内管行进。 转向机构还可以包括至少一个牵引环，扁平线连接到该拉环上。 一层热收缩材料可以包围外层。 编织线组件也可以设置在外层中，并且可以通过将多根扁平线编织成丝网而形成。 导管组件的整个横截面优选地基本上是圆形的。 导管轴可以包括具有不同硬度特性的多个部分。 外层通常包括熔融加工聚合物，使得导管组件可以使用热层压。

    Catheter shaft and method of its manufacture
    14.
    发明授权
    Catheter shaft and method of its manufacture 有权

    公开(公告)号：US11511076B2

    公开(公告)日：2022-11-29

    申请号：US17183640

    申请日：2021-02-24

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Xiaoping Guo ,  Richard E. Stehr

    IPC: A61M25/00 ,  B29C48/151 ,  B29C61/00 ,  B29D23/00 ,  A61M25/01 ,  B29C63/00 ,  B29L31/00 ,  B29K27/18 ,  B29K105/16

    Abstract: A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

    Catheter Shaft and Method of Its Manufacture
    15.
    发明申请
    Catheter Shaft and Method of Its Manufacture 有权

    公开(公告)号：US20210236766A1

    公开(公告)日：2021-08-05

    申请号：US17183640

    申请日：2021-02-24

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Xiaoping Guo ,  Richard E. Stehr

    IPC: A61M25/00 ,  B29C48/151 ,  B29C61/00 ,  B29D23/00 ,  A61M25/01 ,  B29C63/00

    Abstract: A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

    Catheter shaft and method of its manufacture
    16.
    发明授权
    Catheter shaft and method of its manufacture 有权

    公开(公告)号：US10960180B2

    公开(公告)日：2021-03-30

    申请号：US15963813

    申请日：2018-04-26

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Xiaoping Guo ,  Richard E. Stehr

    IPC: A61M25/00 ,  B29C48/151 ,  B29C61/00 ,  B29D23/00 ,  A61M25/01 ,  B29C63/00 ,  B29L31/00 ,  B29K27/18 ,  B29K105/16

    Abstract: A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

    Auto lock for catheter handle
    17.
    发明授权
    Auto lock for catheter handle 有权

    公开(公告)号：US10737062B2

    公开(公告)日：2020-08-11

    申请号：US15615255

    申请日：2017-06-06

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Clint Schneider ,  Joshua L. Dudney ,  Richard E. Stehr ,  Troy T. Tegg ,  Michael C. Bednarek ,  Guy P. Vanney ,  James A. Jensen ,  Michael W. Stine

    IPC: A61M25/01

    Abstract: The present invention is a catheter actuation handle for deflecting a distal end of a tubular catheter body, the handle including an auto-locking mechanism. The handle comprises upper and lower grip portions, an actuator, and an auto-locking mechanism. The auto-locking mechanism is adapted to hold a deflected distal end of the catheter in place without input from the operator. When the distal end of the catheter is deflected from its zero position, it typically will seek a return to its zero position, and as a result exerts a force on the actuator. The auto-locking mechanism acts by providing a second force that resists this force from the distal end and holds the distal end in place. As a result, the operator does not need to maintain contact with the buttons to maintain the distal end 18 in a set position once placed there by actuating the actuator.

    Body for a catheter or sheath
    18.
    发明授权
    Body for a catheter or sheath 有权

    公开(公告)号：US10076639B2

    公开(公告)日：2018-09-18

    申请号：US14818633

    申请日：2015-08-05

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Xiaoping Guo ,  Richard E. Stehr

    IPC: A61M5/178 ,  A61M31/00 ,  A61M37/00 ,  A61M25/06 ,  A61M25/00 ,  A61M25/01

    CPC classification number: A61M25/0668 ,  A61M25/0009 ,  A61M25/0023 ,  A61M25/005 ,  A61M25/0108

    Abstract: A body (2) for a catheter or sheath is disclosed. The body (2) includes strips (8, 10) formed longitudinally from the proximal (6) portion of the body (2) to the distal (4) portion of the body (2). The strips are formed of different materials. The strips can have different radiopacities, or can be splittable/peelable. The splittable/peelable body comprises a peel mechanism longitudinally extending along its respective length. The peel mechanism can be formed by longitudinally extending regions of interfacial bonding between first and second longitudinally extending strips of polymer material. A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the body (2) along its peel mechanism. The polymer material of the first strip (8) can have a greater amount of radiopaque filler than the polymer material of the second strip (10). Each strip forms at least a portion of an outer circumferential surface of the body (2).

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