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公开(公告)号:US5282847A
公开(公告)日:1994-02-01
申请号:US914648
申请日:1992-07-15
CPC分类号: A61F2/06 , A61F2/07 , A61L27/14 , A61L27/507 , A61F2210/0076 , A61F2230/005 , A61M25/0043
摘要: A vascular graft having a pleated circumference accommodates blood pressure changes with minimal change in internal surface area. A highly compliant graft may be made from a wide variety of polymers including non-elastomeric materials.
摘要翻译: 具有褶皱圆周的血管移植物容纳血压变化,内表面积的变化最小。 高度柔顺的移植物可以由各种各样的聚合物制成,包括非弹性材料。
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公开(公告)号:US5180372A
公开(公告)日:1993-01-19
申请号:US763788
申请日:1991-09-23
申请人: Brett R. Vegoe , Richard L. Molacek
发明人: Brett R. Vegoe , Richard L. Molacek
CPC分类号: A61M25/0009 , B29C71/04 , A61M25/0662 , B29C2035/0827 , B29C2035/085 , B29C2035/0877 , B29C37/0057 , B29C47/00 , B29C47/0023 , B29C47/0026 , B29K2023/0625 , B29K2105/0085 , B29K2105/0088 , B29L2023/22 , B29L2031/7542
摘要: An improved placement catheter of the type having a longitudinal line of weakness whereby the catheter may be split longitudinally. The improved catheter is made with radiation cross-linked tubing to provide better splittability.
摘要翻译: 一种具有纵向弱线的类型的改进的放置导管,其中导管可纵向分开。 改进的导管由辐射交联管制成,以提供更好的分裂性。
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公开(公告)号:US5358517A
公开(公告)日:1994-10-25
申请号:US4389
申请日:1993-01-14
IPC分类号: A61N1/05
CPC分类号: A61N1/056
摘要: An implantable lead having a plastic stylet guide therein. A substantially cylindrical channel is provided in a flexible lead body made of silicone rubber, polyurethane, or the like. The cylindrical channel defines a lumen containing a stylet guide into which a stylet can be inserted during an implantation procedure. Texture on the inner wall of the stylet guide minimizes friction between the stylet and the stylet guide, facilitating easy insertion and removal of the stylet. One or more electrical conductors may also be provided.
摘要翻译: 一种其中具有塑料探针引导件的可植入引线。 在由硅橡胶,聚氨酯等制成的柔性引线体中设置大致圆筒形的通道。 圆柱形通道限定包含探针引导件的内腔,在注入过程期间可以插入探针。 在探针导向器内壁上的纹理可以最小化探针和探针引导件之间的摩擦力,便于插入和移除探针。 还可以提供一个或多个电导体。
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公开(公告)号:US5375609A
公开(公告)日:1994-12-27
申请号:US33529
申请日:1993-03-22
申请人: Richard L. Molacek , Kenneth E. Cobian , Michael J. Ebert , Allan H. Jevne , James R. Keogh , Paul C. Slaikeu
发明人: Richard L. Molacek , Kenneth E. Cobian , Michael J. Ebert , Allan H. Jevne , James R. Keogh , Paul C. Slaikeu
摘要: The present invention provides resistance to degradation from environmental stress cracking (ESC) and metal ion induced oxidation (MIO) for implantable, flexible pacing lead insulators having a body of polyether polyurethane elastomer material. A thin layer of a second polyurethane elastomer is applied as an overcoat to the lead insulator body. The second polyurethane is more resistant to ESC and MIO than the elastomer comprising the body of the insulator. Because ESC and MIO are surface phenomina, only a thin layer of the second material is required and the mechanical properties of the base material will determine the overall mechanical properties of the lead insulator.
摘要翻译: 本发明提供对具有聚醚聚氨酯弹性体材料体的可植入,柔性起搏引线绝缘子的环境应力开裂(ESC)和金属离子诱导氧化(MIO)的降解性。 将第二聚氨酯弹性体的薄层作为外涂层施加到引线绝缘体主体。 第二聚氨酯比包含绝缘体主体的弹性体更耐ESC和MIO。 因为ESC和MIO是表面的,所以仅需要第二材料的薄层,并且基材的机械性能将决定铅绝缘体的整体机械性能。
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公开(公告)号:US5419921A
公开(公告)日:1995-05-30
申请号:US312256
申请日:1994-09-26
申请人: Richard L. Molacek , Kenneth E. Cobian , Michael J. Ebert , Allan H. Jevne , James R. Keogh , Paul C. Slaikeu
发明人: Richard L. Molacek , Kenneth E. Cobian , Michael J. Ebert , Allan H. Jevne , James R. Keogh , Paul C. Slaikeu
摘要: The present invention provides resistance to degradation from environmental stress cracking (ESC) and metal ion induced oxidation (MIO) for implantable, flexible pacing lead insulators having a body of polyether polyurethane elastomer material. A thin layer of a second polyurethane elastomer is applied as an overcoat to the lead insulator body. The second polyurethane is more resistant to ESC and MIO than the elastomer comprising the body of the insulator. Because ESC and MIO are surface phenomina, only a thin layer of the second material is required and the mechanical properties of the base material will determine the overall mechanical properties of the lead insulator.
摘要翻译: 本发明提供对具有聚醚聚氨酯弹性体材料体的可植入,柔性起搏引线绝缘子的环境应力开裂(ESC)和金属离子诱导氧化(MIO)的降解性。 将第二聚氨酯弹性体的薄层作为外涂层施加到引线绝缘体主体。 第二聚氨酯比包含绝缘体主体的弹性体更耐ESC和MIO。 因为ESC和MIO是表面的,所以仅需要第二材料的薄层,并且基材的机械性能将决定铅绝缘体的整体机械性能。
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公开(公告)号:US5303704A
公开(公告)日:1994-04-19
申请号:US994756
申请日:1992-12-22
申请人: Richard L. Molacek , Allan H. Jevne , Peter J. Pohndorf , Kenneth E. Cobian , Joseph F. Lessar , James E. Upton
发明人: Richard L. Molacek , Allan H. Jevne , Peter J. Pohndorf , Kenneth E. Cobian , Joseph F. Lessar , James E. Upton
CPC分类号: A61B5/14542 , A61B5/0422 , A61B5/1473 , A61B5/6882 , A61N1/05 , A61N1/056
摘要: An implantable multi-lumen, multi-conductor lead for use with an implantable medical device. The completed lead is an assembly of a polymeric lead body with several coiled conductors inserted into the lead body. The lead body includes several lumens having a generally rounded-corner triangular or "pie-shaped" cross-section. The conductors do not fill the lumens, and only contact the inner walls of the lumens at discrete points, rather than for extended sections of or all of the circumference of the conductors. Preferably the coils are sized so that they fit loosely within the lumens.
摘要翻译: 一种可植入式多腔多芯导线,用于可植入医疗器械。 完成的导线是聚合物引线体的组件,其具有插入到引线主体中的多个线圈导体。 引线体包括具有大致圆角三角形或“饼形”横截面的多个腔。 导体不填充腔,并且仅在离散点处接触腔的内壁,而不是导体的延伸部分或全部圆周。 优选地,线圈的尺寸使得它们松散地配合在腔内。
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