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:
Sep. 15, 1992
Filed:
Mar. 01, 1991
Daniel A Talonn, University City, MO (US);
Alan B Ranford, St. Louis, MO (US);
Sherwood Medical Company, St. Louis, MO (US);
Abstract
A safety syringe of the type having a needle shield that is slidable between a needle exposing retracted position and a needle protecting extended position and wherein the needle shield is rotatable in the extended position to a locked and extended position. The safety syringe includes a collar mounted on the distal end of the syringe and a plurality of elongate keys on the interior surface of the needle shield. The keys are slidably received in various protrusions and slots on the collar to releasably retain the needle shield in the retracted and extended positions and to retain the needle shield in the locked and extended position. A needle sheath is also removably mounted on the distal end of the needle shield to cover the needle of the syringe when the needle shield is in the initial retracted position.