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:
Dec. 29, 1987
Filed:
Nov. 07, 1986
Applicant:
Inventors:
Christopher Nowacki, Arlington Heights, IL (US);
Alfred G Brisson, Kildeer, IL (US);
Assignee:
Trutek Research, Inc., Lake Zurich, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128328 ; 367147 ; 128 / ;
Abstract
Kidney stones are disintegrated by extracorporeal apparatus generated shock waves. A reflector open at one end, has a liquid such as water therein and a resilient disphragm across the open end of the reflector. A spark gap is provided in the reflector, and a spark across this gap generates a shock wave and produces gas in the liquid. A flexible enclosure within the reflector about the spark gap isolates the spark gap from most of the liquid in the reflector. Gas formed as an incident to discharging a spark across the gap is removed from this enclosure.