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:
Jun. 17, 1986
Filed:
May. 04, 1984
Applicant:
Inventors:
William R Shene, Plattsburgh, NY (US);
Glen Brisson, Kildeer, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128734 ; 128328 ;
Abstract
An instrument for attacking calculi of a patient by hydraulic impacts formed by electrical discharges in a liquid medium surrounding the calculi by detecting if the discharge end of the lithotrite of the instrument is adjacent to tissue of the patient and detecting by measuring the conductivity of the liquid medium and determining whether the measured conductivity falls within predetermined levels.