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. 22, 1976
Filed:
Mar. 03, 1975
Applicant:
Inventors:
Gordon S Reynolds, Bountiful, UT (US);
A Boyd Hansen, Bountiful, UT (US);
Assignee:
Sorenson Research Co., Inc., Salt Lake City, UT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ; A61M / ;
U.S. Cl.
CPC ...
128276 ; 128240 ;
Abstract
An aspiration wand assembly having an associated metering valve for metering liquid anticoagulant to blood aspirated by the wand. The metering valve includes a flexible diaphragm normally obstructing conduit which transmits anticoagulant from a remote source to the tip of the aspiration wand. An orifice communicates the diaphragm with the interior of the aspiration wand so that various negative pressures in the wand correspondingly draw the diaphragm into any one of a plurality of positions away from the obstructing position.