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:
Jan. 24, 1995
Filed:
Jan. 29, 1993
Brian M Mann, Beverly Hills, CA (US);
Siemens Pacesetter, Inc., Sylmar, CA (US);
Abstract
A rate-responsive pacemaker (10) generates stimulation pulses on demand at a rate determined by a sensor indicated rate (SIR) signal. The pacemaker includes, in a preferred embodiment, an activity sensor (26) that generates a raw sensor signal (27) as a function of sensed body motion. The raw sensor signal is processed by two parallel signal processing channels with each channel emphasizing a different aspect of the raw sensor signal. A first sensor processing channel (28) produces a first processed sensor signal (S.sub.A) that is more sensitive to arm motion than to pedal impacts. A second sensor processing channel (30) produces a second processed sensor signal (S.sub.B) that is more sensitive to pedal impacts than to arm motion. The first and second processed sensor signals are each weighted by a programmable amount, and are then combined to form the SIR signal.