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:
Sep. 22, 1981
Filed:
Jun. 05, 1980
Daniel Bihn, Aptos, CA (US);
Pat L Gordon, West Columbia, TX (US);
Intermedics, Inc., Freeport, TX (US);
Abstract
A method and apparatus are provided for determining the compatibility between a selected implantable pacer and a patient within which the pacer is to be implanted wherein the pacer does not have to be directly connected to the patient during the compatibility check.Actual cardiac signals from the patient are digitized and a storage frame is established about a complete cardiac waveform. This cardiac waveform can be reproduced in analog form for presentation to the pacer. Further, the amplitude of the reproduced cardiac waveform may be varied in a manner determined by an active search routine wherein the threshold response of the cardiac pacer can be determined. In a preferred embodiment, the threshold response determination is also used to provide an output signal indicative of the degree of compatibility between the selected cardiac pacer and the actual patient selected to receive the pacer.