Automatically actionable sharpened needle-tip protection

Details Automatically actionable sharpened needle-tip protection Automatically actionable sharpened needle-tip protection

1987-06-03

1988-10-04

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604198, A61M 532

Patent

active

047753692

ABSTRACT:
This invention provides a protector for a sharpened tip of a needle of conventional construction. Preferably, foam rubber or plastic is used, with the rear of this foam material secured to the hub containing the needle and with the fore end of the foam material secured to a molded tubular guide end member. An inner sleeve is provided with the foam material. This foam material is shown as an extrusion or as a strip with adhesive on one side. This protector is accordionized when the needle is advanced into the patient. Bias may also be provided by a spring. The spring is shown as an integral part of a tubular length, with the interstice portions extending between convolutions of the spring. Three embodiments of spring placement are shown. In all embodiments, it is anticipated that the needle and protector will be brought to the patient, and with the needle advancement the protector accordionizes as the needle is inserted. The bias moves the end member to a tip-protecting condition and position as the needle is withdrawn.

REFERENCES:
patent: 2847995 (1958-08-01), Adams
patent: 3134380 (1964-05-01), Armao
patent: 3380448 (1968-04-01), Sadove

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