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:
May. 22, 1990
Filed:
May. 30, 1989
Applicant:
Inventors:
Joel R Dufresne, St. Paul, MN (US);
Alan P Dieken, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
128421 ;
Abstract
A biological tissue stimulator having a time-shared logic element alternately supplying switching signals to a step-up voltage circuit powered from a low-voltage power source and supplying a plurality of amplitude timing signals to an output circuit utilizing the high-voltage output from the step-up voltage circuit. A high-voltage storage device is utilized to store the voltage generated in the step-up voltage circuit until it can be utilized by the output circuit.