U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system

Patent 6442434 Issued on August 27, 2002. Estimated Expiration Date: Icon_subject August 9, 2020. 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

3195540

3756246

Transcutaneous signal transmission system and methods
Patent #: 4441210
Issued on: 04/03/1984
Inventor: Hochmair ,   et al.

Power supply for body implant and method of use
Patent #: 4665896
Issued on: 05/19/1987
Inventor: LaForge ,   et al.

Biocompatible ventricular assist and arrhythmia control device
Patent #: 4925443
Issued on: 05/15/1990
Inventor: Heilman, et al.

Electrohydraulic ventricular assist device
Patent #: 5569156
Issued on: 10/29/1996
Inventor: Mussivand

Transcutaneous energy and information transmission apparatus
Patent #: 5630836
Issued on: 05/20/1997
Inventor: Prem, et al.

Transcutaneous energy transmission circuit for implantable medical device
Patent #: 5690693
Issued on: 11/25/1997
Inventor: Wang, et al.

Enhanced transcutaneous recharging system for battery powered implantable medical device
Patent #: 5702431
Issued on: 12/30/1997
Inventor: Wang, et al.

Data communication system for control of transcutaneous energy transmission to an implantable medical device
Patent #: 5713939
Issued on: 02/03/1998
Inventor: Nedungadi, et al.

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Inventors

Assignee

Application

No. 635050 filed on 08/09/2000

US Classes:

607/61, Energy source outside generator body607/33Energy source external of generator or body

Examiners

Primary: Jastrzab, Jeffrey R.
Assistant: Oropeza, Frances P.

Attorney, Agent or Firm

International Class

A61N 001/08

Abstract

Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system that transfers energy from one side of a physical boundary to another side of the boundary. In one example, a power supply and a primary winding are located on a first side of a physical boundary (e.g., external to a body), and a secondary winding and the load are located on a second side of the physical boundary (e.g., internal to the body). A primary voltage across the primary winding is regulated so as to provide a sufficiently stable output power to the load notwithstanding changes in the load and/or changes in a relative position of the primary winding and the secondary winding. One aspect of the invention relates to energy transfer methods and apparatus for use in connection with the human body. In particular, one example of the invention includes a transcutaneous energy transfer (TET) system for transferring power from a power supply external to the body to a device implanted in the body.

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