Patent · US Active

Syringe needle sheath

US8617122B2 · kind B2 · utility

7Cited by

15References

7Claims

0Family size

Assignee

UNITRACT SYRINGE PTY LTD · AU

Inventors

Damien Judd · Melbourne, AU
Joseph Hermes Kaal · Maitland, AU
Craig Stephen Thorley · Maitland, AU

Key dates

Filing date	Apr 11, 2011
Grant date	Dec 31, 2013
Priority date	—
Expiry date	Aug 12, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3265
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A syringe is provided which comprises a barrel (11) and a needle sheath (30) slidably located within the barrel, a plunger (20) with a plunger seal (23), a needle, a needle sheath (30) and a sheath seal (50), arranged so that depression of the plunger forces the needle sheath to move into a position where it covers or at least partly encloses the needle after delivery of fluid contents of the syringe. The needle sheath may be manually actuated or may be actuated by decompression of a spring. The syringe may further comprise a plunger disabling means operable to impede, prevent or otherwise hinder withdrawal of the plunger during or following depression of the plunger. The syringe may be a pre-filled syringe or a syringe which is filled by a user.

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