Patent · US Active

Retractable syringe needle

US9604010B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

UNITRACT SYRINGE PTY LTD · AU

Inventors

Craig Stephen Thorley · Maitland, AU
Joseph Hermes Kaal · Maitland, AU
Christopher Charles Rafferty · Maitland, AU
Huw Wallis · Chatswood, AU
Ernesto Hueso-Monis · Sydney, AU
Kamman Law · Sydney, AU
Richard Sokolov · Parramatta, AU

Key dates

Filing date	Nov 9, 2012
Grant date	Mar 28, 2017
Priority date	—
Expiry date	Jun 6, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2270/041
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A retractable needle is provided for a syringe comprising a barrel and a plunger that comprises a portion capable of engaging the retractable needle for retraction. The retractable needle comprises a cannula, a needle body having a plunger-engaging member, at least one aperture and an elongate portion which houses the cannula, the cannula comprising an end which is in fluid communication with the at least one aperture, wherein the at least one aperture is located between the plunger-engaging member and the elongate portion. The positioning of the at least one aperture distal to the plunger-engaging member maximizes the efficiency of fluid delivery.

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