The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 1984
Filed:
May. 05, 1982
Applicant:
Inventor:
Robert DeCote, Jr, Miami Beach, FL (US);
Assignee:
Cordis Corporation, Miami, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
1284 / ;
Abstract
To prevent crosstalk between atrial and ventricular channels in a dual chamber cardiac pacer with bipolar leads, the atrial and ventricular leads are multiplexed at about 2 kHz. This chopping rate is well above the sense amplifier's upper frequency response. Solid state switches provide that during stimulation on a given channel, only the corresponding leads are connected. Between output pulses, only one of the bipolar lead pairs is connected to the pacer at any instant of time. Circuitry is included to provide break-before-make action. Thus, at no instant of time are both channel lead pairs connected to the pacer.