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:
Nov. 26, 1991
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Richard A Jaffe, Palo Alto, CA (US);
A Christopher Allison, Pacifica, CA (US);
Assignee:
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604110 ; 604240 ; 604215 ;
Abstract
A single use needle assembly includes a needle extending through a base with a hub extending from the base for engaging a syringe. The end of the needle within the hub has a port which is covered by a retractable sheath. When the needle assembly and a syringe are assembled, two separable tabs held within a basket force the sheath to retract and expose the port in the needle whereby a fluid can flow through the needle. Upon disassembly of the needle syringe, the tabs separate from the basket and are effectively destroyed for further use in retracting the sheath.