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Endocardial defibrillation lead with looped cable conductor
| Details |
Inventors: Conger, Steven; Goldman, Stephen L.; Reddy, G. Shantanu;
Assignee: Intermedics Inc. (Angleton, TX)
Primary Examiner: Getzor; Scott M.
Assistant Examiner:
Attorney, Agent or Firm: Schwegman, Lundberg, Woessner & Kluth, P.A.
An implantable endocardial defibrillation lead having a looped cable conductor for conducting at least high voltage defibrillation shocks. A coil electrode is connected to an elongated, flexible, electrically non-conductive lead body and is supplied with electrical power for delivering electrical shocks to the heart through a looped cable conductor that extends through the lead body and is associated with a power source. |
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DETAILED DESCRIPTION In accordance with the present invention, there is provided an implantable endocardial defibrillation lead having a looped cable conductor for conducting at least high voltage defibrillation shocks.
A coil electrode is connected to an elongated, flexible, electrically non-conductive lead body and is supplied with electrical power for delivering electrical shocks to the heart through a looped cable conductor that extends through the lead body and is associated with a power source.
Depending upon the desired application for the lead, the invention may also be used with a pacer and, thus, include any of a variety of pacer electrodes and sensors that are presently available or may become available.
Such devices, if used, would be disposed upon the lead, insulated from the defibrillator electrode segments and electrically connected with a second electrical conductor that extends through the lead body and provides electrical power to the pacer electrode.
The lead may also include a ground electrode disposed upon the lead a distance from the other electrodes to receive the pulses delivered to the heart tissue and transmit them back through a third electrical conductor extending through the lead.
The coil electrode and looped cable conductor may also serve a dual function as a ground electrode and conductor.
The invention may also be adapted for fixation of the distal end of the lead to the heart to achieve selective positioning of the electrode or electrodes.
A variety of currently available passive and active fixation mechanisms, or that may become available, may be used with the invention.
For example, the lead may include tines.
A small fixation screw for securing the distal end of the lead within the heart could also be used.
The present invention also provides a system for regulating the beating of a heart.
The system includes the lead, as previously discussed, attached to a pulse generator at the proximal end of the lead.
In the preferred embodiment, the pulse generator includes a processor, a defibrillator circuit, and a pacer circuit
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Metal Working 
