Patent · US Expired

Spring launched needle safety clip

US6623458B2 · kind B2 · utility

109Cited by

41References

46Claims

0Family size

Assignee

B. Braun Melsungen AG · DE

Inventors

Kevin Woehr · Fritzlar, DE
Juergen Fuchs · Flörsheim, DE
Helmut Freigang · Körle, DE
Klaus Siemon · Münster, DE

Key dates

Filing date	Sep 26, 2001
Grant date	Sep 23, 2003
Priority date	—
Expiry date	Sep 26, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S128/919
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A hypodermic needle assembly configured such that the movement of a needle shield into position to block the needle tip occurs as a direct consequence of a longitudinal force applied by insertion of a syringe plunger is provided. The hypodermic needle assembly according to the present invention comprises a needle, a needle hub, and a safety spring clip assembly, the safety spring clip assembly being configured to automatically launch from the needle hub and slide along the needle until the spring clip meets a needle stop at the needle tip, thus preventing the guard from being removed from the needle shaft. A method of using the hypodermic needle assembly according to the present invention is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.