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. 28, 1993
Filed:
Aug. 03, 1992
Robert Malenchek, Somerville, NJ (US);
Other;
Abstract
A safety syringe has a hollow shield with a plunger opening on one end and a needle opening on the other end. At least one locking lug is mounted at the plunger opening. The syringe also has a lumen that is telescopically mounted at least partially within the shield. The lumen has a catch for engaging the locking lug. A needle attached to the lumen is aligned with the needle opening of the shield. An urging means is mounted in the shield to urge the lumen and to retract the needle into the shield. A plunger has an inner end slidably mounted in the lumen and an outer end mounted through the plunger opening. The outer end of the plunger has an extension for engaging and deflecting the locking lug to release the catch, which allows the urging means to retract the needle into the shield.