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. 02, 1996
Filed:
Dec. 29, 1994
Applicant:
Inventors:
Helge Fossan, Stavanger, NO;
Jonathan M Benson, Oregon City, OR (US);
Assignee:
Laerdal Manufacturing Corp., Tualatin, OR (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
607-7 ; 607-5 ;
Abstract
A defibrillator utilizes at least one flash tube for switching electrical energy from an energy source to a heart patient. The flash tube has a high impedance state in which the patient is isolated from the energy. In response to a triggering pulse, the flash tube enters a low impedance state in which energy is delivered to the patient. An additional switching element in the defibrillator operates to interrupt energy delivery through the flash tube so that a truncated defibrillation pulse having a desired energy level is produced.