Syringe having a retractable needle

Details Syringe having a retractable needle Syringe having a retractable needle

1990-05-25

1993-03-23

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604110, 604232, 604264, 604263, A61M 532

Patent

active

051959852

ABSTRACT:
This invention is directed to improved syringes and protected needle accessories for use in injecting or withdrawing fluids as well as catheter placement use. Needles are encapsulated for proper disposal after use is complete. Accessories include syringes, catheters, filters, guide wires, dental cartridge-needle combinations and medication-laden syringes, blood drawing needles, holders and biopsy needles. Devices help combat drug abuse and disease transmission by safely isolating the needle point. Containment shells, caps, case accessories, and self-annulling plugs are provided to protect the user and innocent bystander from needle and contaminating fluids. Superior sealing means are disclosed and a tactile securing means to fasten a needle or cap to a threaded hub or collar. Standard parts are used where possible. Self-aspirating capability is provided in some cases. In some medication-laden syringe containment systems, a coaxial cap-needle is first segregated from and later fastened to the eye opening of the eye cap cover of the containment means. A cap-handle device may be used to safely racap an exposed and unprotected needle.

REFERENCES:
patent: 4747830 (1988-05-01), Gloyer et al.
patent: 4804370 (1989-02-01), Haber et al.
patent: 4909794 (1990-03-01), Haber et al.
patent: 4919652 (1990-04-01), Alter et al.
patent: 4931040 (1990-06-01), Haber et al.
patent: 4932939 (1990-06-01), Magre et al.
patent: 4978340 (1990-12-01), Terrill et al.
patent: 4986813 (1991-01-01), Blake et al.
patent: 4995874 (1991-02-01), Strickland
patent: 5030208 (1991-07-01), Novacek et al.

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