Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-06-07
1996-08-06
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604192, 604263, A61M 500
Patent
active
055429270
ABSTRACT:
Method and apparatus associated with safe retraction of used medical needles. Embodiments are disclosed for self-retracting needle systems for medical syringe, blood withdrawal and catheter insertion systems. Invention manufacture requires only a small number and complexity of parts such that 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 blood withdrawal, syringe and catheter embodiments are disclosed. Energy storing retracting mechanisms comprise elastic tubing and vacuum generating piston parts. Triggerable release mechanisms generally comprise two parts or two frangible segments of one part disposed about a medical needle. Each release mechanism involves one part or segment which is securely affixed to the needle and one part or segment which is free to slide and rotate about the needle. The medical syringe is a self-retracting needle apparatus which may be releasibly affixed to a standard medical syringe having a luer lock fitting. 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 provide a sterile barrier and be used as a transport container to reduce costs.
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Patricia Seremet, "Small Tolland Company Takes Jab at Safety Needle Market," The Hartford Courant, Sep. 13, 1995, pp. F1 and F3.
Thorne David L.
Thorne Gale H.
Specialized Health Products Inc.
Thorne Gale H.
Yasko John D.
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