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. 12, 2000
Filed:
Jan. 28, 1999
Applicant:
Inventor:
Kent W Leyde, Redmond, WA (US);
Assignee:
Heartstream, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
607-5 ;
Abstract
An automatic external defibrillator ('AED') is described that includes a high voltage delivery circuit for producing a biphasic electrical pulse to defibrillate a patient. The delivery circuit includes a plurality of capacitors controlled by IGBTs. The bridge circuit has four SCRs which are selectively switched to produce, for example, a biphasic steering of current.