Pacing lead with piezoelectric power generating means
Patent 4690143 Issued on September 1, 1987. Estimated Expiration Date: 
January 24, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 24, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2976865 3421512 3456134 3563245 3657615 3815611 3835864 3906960 Self powered pacers and stimulators Demand pacemaker with self-adjusting threshold and defibrillating feature InventorAssigneeApplicationNo. 06/822694 filed on 01/24/1986US Classes:607/5Cardioverting/defibrillatingExaminersPrimary: Kamm, William E.Attorney, Agent or FirmInternational ClassesH01L 41/113 (20060101)H01L 41/08 (20060101) A61N 1/372 (20060101) A61N 1/378 (20060101) A61N 1/05 (20060101) AbstractThe pacing lead includes a catheter distal end portion which has a piezoelectric device therein and which is adapted to be inserted into a human heart. The device can be a ceramic bimorph or can be made of polyvinylidene fluoride film for generation of electrical energy upon contraction of the heart. The piezoelectric device is designed to generate electrical energy in response to movement of the implanted pacing lead and in the preferred embodiment is incorporated into the wall of the catheter of the lead as a longitudinal or spiral configured strip of film having piezoelectric properties.Other References
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