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:
Apr. 02, 1996
Filed:
May. 09, 1994
Applicant:
Inventor:
Milton H Goldrath, Franklin, MI (US);
Assignee:
BEI Medical Systems, Hackensack, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 65 ; 604 31 ; 604 27 ; 604 48 ;
Abstract
An open loop system for delivering fluid during hysteroscopic surgery. The system includes first and second fluid conduits in fluid communication with the uterine cavity of a patient. First and second measuring devices are provided for measuring the amount of fluid flowing into and out of the uterus. The measuring devices produce electronic signals which are communicated to a controller which uses them to calculate a value reflecting the difference in in-flow and out-flow. This difference is then compared with a preset value; if the preset value is exceeded, the surgeon knows the patient is absorbing too much fluid, and the procedure may be terminated.