05616135 is referenced by 161 patents and cites 36 patents.

Method and apparatus associated with safe retraction of medical needles after use. Embodiments are disclosed for self-retracting needle systems for both blood draw, syringe and catheter insertion systems. Invention manufacture requires only a minimal number and complexity of parts such that a projected manufacturing cost is potentially low enough to permit the apparatus to be cost competitive with contemporary non-self retracting needle systems. Methods for making and assembling each of the disclosed the embodiments is also disclosed. One blood draw embodiment can be made with as few as three molded parts. Energy-storing, needle-retracting mechanisms comprise elastic tubing and vacuum generating piston parts. In an elastic tubing embodiment, selective, constrictive control of stretched tubing volumes effectively inhibits regurgitant flow from the needle. In all embodiments, needle retraction is a single handed operation permitting a technicians other hand to be used in wound care. Use of frangible parts permits the apparatus housing to be attached to a needle cover, which, in combination, are used as a transport container to further reduce apparatus costs.

Title
Self retracting medical needle apparatus and methods
Application Number
370728
Publication Number
5616135
Application Date
December 1, 1995
Publication Date
April 1, 1997
Inventor
Charles V Owen
Highland
UT, US
David L Thorne
Kaysville
UT, US
Gale H Thorne
Bountiful
UT, US
Agent
Gale H Thorne
Assignee
Specialized Health Products
UT, US
IPC
A61M 5/00
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