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

Programmer for implanted pacer

Patent 4211235 Issued on July 8, 1980. Estimated Expiration Date: Icon_subject June 19, 1998. 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

3833005

Multifrequency drive clock
Patent #: 3932816
Issued on: 01/13/1976
Inventor: MacGregor

Command atrial cardioverting device
Patent #: 3952750
Issued on: 04/27/1976
Inventor: Mirowski ,   et al.

Device for non-invasive programming of implanted body stimulators
Patent #: 4024875
Issued on: 05/24/1977
Inventor: Putzke

Implantable digital cardiac pacer having externally selectible operating parameters and "one shot" digital pulse generator for use therein
Patent #: 4049004
Issued on: 09/20/1977
Inventor: Walters

Complex pulse repetition frequency generator Patent #: 4049953
Issued on: 09/20/1977
Inventor: Evans, Jr.

Inventors

Application

No. 05/917139 filed on 06/19/1978

US Classes:

607/30Remotely changing, (e.g., programming, pacer) parameters or operation

Examiners

Primary: Kamm, William E.

Attorney, Agent or Firm

International Classes

G08C 19/22 (20060101)
A61N 1/372 (20060101)
A61N 1/362 (20060101)
A61N 1/37 (20060101)
G08C 19/16 (20060101)

Foreign Application Priority Data

1977-08-19 GB

Abstract

A plurality of programming bits are placed into a parallel in-serially out register. When the programmer is activated, a monostable resets a counter, and energizes an oscillator which clocks the counter. Three subintervals from the counter are utilized for pulse width modulation of the programming signals. Once for each bit, the output is energized and begins transmitting pulses at the lowest subinterval rate. Depending upon the logic state of each bit, the transmission pulse is terminated either at the second or the third subinterval time.

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