Patent ID: 6108582
Filing Date: 2000-08-22
Classification: A61N

Abstract:
A cardiac stimulator lead, comprising:a connector for connecting to a cardiac stimulator, and having a pin member rotatably coupled thereto;a tubular insulating sleeve having a first end coupled to the connector and a second end;an electrode coupled to the second end having a longitudinal bore, and a corkscrew coupled to the electrode and being projectable from and retractable into the bore, a portion of the electrode being radiopaque;a torque coil coupled between the pin member and the corkscrew;a radiopaque member coupled to the torque coil;a conductor wire disposed in the sleeve and coupled between the connector and the electrode for transmitting electric signals between the cardiac stimulator and the electrode; andthe pin member comprising a notch formed in a distal end thereof, the connector further comprising a tubular connector insulating sleeve and a tubular contact sleeve coupled to the tubular connector insulating sleeve, the contact sleeve having a distally facing annular surface, the pin member being rotatably journaled in the insulating sleeve and being prevented from withdrawing from the insulating sleeve by engagement between the annular surface and the notch.