发明名称 COILED, CLOSED-LOOP RF CURRENT ATTENUATOR CONFIGURED TO BE PLACED ABOUT AN IMPLANTABLE LEAD CONDUCTOR
摘要 A coiled, closed-loop RF current attenuator is configured to be placed about an implantable lead conductor. A coiled conductor extends in a coiled shape defining a longitudinal axis from a first coil end to a second coil end. The first coil end is electrically connected to the second coil end. An insulator is disposed about the coiled conductor. The closed loop attenuator can also include in series a short, a capacitor and/or a resistor. In some embodiments the closed loop attenuator can be resonant at an MRI RF-pulsed frequency. The closed loop attenuator can be integrated as a permanent part of an implantable lead conductor, or alternatively, be a stand-alone device that is placed about a premade implantable lead conductor.
申请公布号 US2016193461(A1) 申请公布日期 2016.07.07
申请号 US201614986647 申请日期 2016.01.01
申请人 Greatbatch Ltd. 发明人 Johnson Robert Shawn;Stevenson Robert A.
分类号 A61N1/08;A61N1/05 主分类号 A61N1/08
代理机构 代理人
主权项 1. An implantable medical lead having a lead length extending from a proximal lead end to a distal lead end, wherein the proximal lead end is configured to be removably connectable to electronic circuits of an active implantable medical device, the lead comprising: a) a first electrode contactable with biological cells, wherein the first electrode is disposed at the distal lead end; b) a first lead conductor extending from an electrical connection at the first electrode to or adjacent to the proximal lead end; and c) a first coiled conductor extending in a coiled shape from a first coil end to a second coil end, wherein the first coiled conductor is coiled around at least a portion of the first lead conductor, wherein the first coiled conductor is insulated from the first lead conductor, and wherein the first coil end is electrically connected to the second coil end.
地址 Clarence NY US