Replaceable catheter system for physiological sensors, stimulating
electrodes and/or implantable fluid delivery systems
    21.
    发明授权
    Replaceable catheter system for physiological sensors, stimulating electrodes and/or implantable fluid delivery systems 失效
    用于生理传感器,刺激电极和/或可植入流体输送系统的可更换的导管系统

    公开(公告)号:US5651767A

    公开(公告)日:1997-07-29

    申请号:US587881

    申请日:1996-01-11

    IPC分类号: A61N1/05 A61M5/00

    CPC分类号: A61N1/05 A61B5/6865

    摘要: A replaceable catheter system provides a way to replace an implantable sensor, electrode system, and/or fluid delivery/receiving system. The replaceable catheter system includes an implantable shunt, such as an arteriovenous shunt, attached to an implantable introducer. The introducer and implantable shunt are adapted for surgical implantation within a patient such that it extends from immediately below the patient's skin to the implantable shunt site. The replaceable catheter system further includes a replaceable catheter that is adapted to be contained within the introducer and properly aligned such that an implantable sensor, electrode system, and/or fluid delivery system that is carried by the replaceable catheter is placed in operative association with the implantable shunt and exposed to any fluids passing through the implantable shunt.

    摘要翻译: 可替换的导管系统提供了替代可植入传感器,电极系统和/或流体递送/接收系统的方法。 可替换的导管系统包括可植入的分流器,例如静脉分流器,其附接到可植入导引器。 导引器和可植入分流装置适于在患者体内进行手术植入,使得其从患者皮肤的正下方延伸到可植入分流部位。 可替换的导管系统还包括可更换的导管,其适于容纳在导引器内并且适当对准,使得由可更换导管携带的可植入传感器,电极系统和/或流体输送系统与 可植入分流器并暴露于通过可植入分流器的任何流体。

    Stentless heart valve
    22.
    发明授权
    Stentless heart valve 失效
    无痛心脏瓣膜

    公开(公告)号:US5509930A

    公开(公告)日:1996-04-23

    申请号:US170002

    申请日:1993-12-17

    申请人: Jack W. Love

    发明人: Jack W. Love

    IPC分类号: A61F2/24 A61F2/76

    摘要: A stentless heart valve assembled from autologous tissue is provided. The tissue is cut into a rectangular shape, folded, and stapled at several locations to form the cusps of the valve. The outer walls of the valve are pinched at the midpoint of each cusp to prevent the cusps from adhering to the valve walls. The ends of the rectangle are then stapled to form the annular valve itself.

    摘要翻译: 提供从自体组织装配的无支架心脏瓣膜。 将组织切割成矩形,折叠并在几个位置装订以形成阀的尖端。 阀的外壁被夹在每个尖端的中点,以防止尖端附着在阀壁上。 然后将矩形的端部装订以形成环形阀本身。

    Tricuspid prosthetic tissue heart valve
    24.
    发明授权
    Tricuspid prosthetic tissue heart valve 失效
    三尖瓣假体组织心脏瓣膜

    公开(公告)号:US4470157A

    公开(公告)日:1984-09-11

    申请号:US486376

    申请日:1983-04-19

    申请人: Jack W. Love

    发明人: Jack W. Love

    IPC分类号: A61F2/24 A61F1/22

    摘要: A method and apparatus for providing a tricuspid heart valve that can be assembled with autogenous or foreign tissue using a prefabricated kit comprised of two stents that mate together and a sewing ring, one stent inside or below the other, with the tissue clamped between the stents. The inner or lower stent has a scalloped wall to provide three equally spaced peaks extending from an annular base. The stents may have interlocking means at or near their base to not only lock them together, but also to clamp the tissue in place more securely. In the case of having the one stent inside the other, both stents may have a scalloped wall. The tissue is first placed over the inner stent, then after the outer stent is placed over the tissue, excess tissue is trimmed. The mated stents secure the tissue securely in place. The outer stent may have a ledge along its upper edge overhanging the inner stent to clamp the tissue. In the case of having one stent below the other, the upper stent may be a short cylinder scalloped at both ends to fit as a cap over the lower stent. Alternatively, the upper stent may be formed from three sections of bent rods welded at the peaks. In either case, the upper stent fits closely as a cap over the lower stent, and the lower stent may have an annular base or a scalloped base. In each embodiment, the stents may be made of thermoplastic material and covered by fabric that is thermobonded, i.e., secured to the stents by applying heat and pressure to at least selected areas.

    摘要翻译: 一种用于提供三尖瓣心脏瓣膜的方法和装置,该三尖瓣心脏瓣膜可以使用由两个支架组合的预制套件组装在一起,缝合环,一个支架在另一个内部或之下,一个支架夹在支架之间 。 内支架或下支架具有扇形壁以提供从环形基部延伸的三个等间隔的峰。 支架可以在其底部或附近具有互锁装置,以便不仅将它们锁定在一起,而且还可以将组织更牢固地固定在适当位置。 在一个支架位于另一支架内的情况下,两个支架都可以具有扇形壁。 首先将组织放置在内支架上,然后在将外支架放置在组织上之后,修剪多余的组织。 配对的支架将组织牢固地固定到位。 外支架可以具有沿其上边缘突出的突出部,用于夹紧组织。 在一个支架低于另一支架的情况下,上支架可以是在两端扇形的短圆筒,以适合作为下支架上的盖。 或者,上支架可以由在峰顶焊接的三个弯曲杆部分形成。 在任一情况下,上支架在下支架上以盖子紧密配合,并且下支架可具有环形底座或扇形基座。 在每个实施例中,支架可以由热塑性材料制成并被热粘合的织物覆盖,即通过对至少选定的区域施加热量和压力而固定到支架上。