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. 16, 1985
Filed:
Sep. 28, 1983
Chester D Slocum, Miami, FL (US);
Cordis Corporation, Miami, FL (US);
Abstract
An apparatus and a process are disclosed for communicating an electrogram from a patient. An enclosure having a tuned coil mounted therein is implanted in the patient. The tuned coil is adapted to reradiate a signal in the presence of an externally generated carrier signal. A variable impedance device is provided across the tuned coil. The resistance of the variable impedance device can be altered linearly and it is set at a reference level that is approximately the center of its linear range. An analog signal, representative of the electrogram, is coupled to the input of the variable impedance device. In this manner, the variable impedance device will be modulated in response to the electrogram.