公开(公告)号：US5003992A

公开(公告)日：1991-04-02

申请号：US398350

申请日：1989-08-23

申请人： Timothy W. Holleman ,  Phong D. Doan ,  Kenneth R. Brennen ,  John M. Swoyer

发明人： Timothy W. Holleman ,  Phong D. Doan ,  Kenneth R. Brennen ,  John M. Swoyer

IPC分类号： A61N1/05

CPC分类号： A61N1/0568 ,  A61N1/0575 ,  A61N2001/0578

摘要： An electrical stimulation lead incorporating an electrode assembly which dispenses a drug adjacent the stimulation site. The lead is provided with a fixation helix located at the distal end of the lead. An electrode may be extended distally within the helix. When extended, the electrode serves as a guard against perforation or other damage to tissue by the helix. In its retracted position, the electrode is located roughly adjacent the distal end of the lead body, and lies against the tissue to be stimulated. Advancing and retraction of the electrode is accomplished by means of a stylet which is removably engageable with the proximal end of the electrode. In one embodiment, the stylet functions to both advance and retract the electrode. In an alternative embodiment, the stylet is used only to advance the electrode, and retraction of the electrode is accomplished by a resilient conductor.

公开(公告)号：US4971070A

公开(公告)日：1990-11-20

申请号：US279755

申请日：1988-12-05

申请人： Timothy W. Holleman ,  Richard Sandstrom ,  Roger Rugland ,  Terrell M. Williams

发明人： Timothy W. Holleman ,  Richard Sandstrom ,  Roger Rugland ,  Terrell M. Williams

IPC分类号： A61N1/05

CPC分类号： A61N1/0587

摘要： An epicardial defibrillation electrode employing an elongated, coil electrode embedded in the surface of a flexible electrode pad. The coil electrode provides increased flexibility and superior electrode flex life. The arrangement of the coil electrode provides uniform current distribution.

摘要翻译： 使用嵌入柔性电极垫表面的细长线圈电极的心外膜除颤电极。 线圈电极提供增加的灵活性和优异的电极弯曲寿命。 线圈电极的布置提供均匀的电流分布。

公开(公告)号：US4951687A

公开(公告)日：1990-08-28

申请号：US304756

申请日：1989-01-31

申请人： Keith A. Ufford ,  Timothy W. Holleman

发明人： Keith A. Ufford ,  Timothy W. Holleman

IPC分类号： A61N1/375 ,  H01R24/58

CPC分类号： H01R24/58 ,  A61N1/3752 ,  H01R2103/00

摘要： A connector for use in conjunction with implantable, medical electrical leads, such as cardiac pacing leads. The connector is of the type known in the pacing industry as "in-line", and includes an elongated connector pin and a cylindrical connector ring, spaced longitudinally from one another, and separated by an insulative segment. The connector pin is adapted to rotate within the connector, in order to transmit torque down the body of the electrical lead to activate a fixation device or other apparatus. Surrounding the connector pin is an elongated bearing sleeve which engages an elongated, reduced diameter segment of the connector pin. The connector pin is provided with circumferential shoulders at the proximal and distal ends of the reduced diameter portion of the pin, which in turn engage the bearing sleeve.

摘要翻译： 用于与植入式医疗电引线（例如心脏起搏引线）结合使用的连接器。 该连接器在起搏行业中已知为“直列式”，并且包括细长连接器销和圆柱形连接器环，其彼此纵向间隔开并且由绝缘段分隔开。 连接器针适于在连接器内旋转，以便将扭矩向下传导到电引线的主体以激活固定装置或其它装置。 围绕连接器销的是细长的轴承套筒，其接合连接器销的细长的直径较小的部分。 连接器销在销的减小直径部分的近端和远端处设置有周向肩部，其又接合轴承套筒。