Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-02-11
1994-03-08
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, A61M 532, A61M 500
Patent
active
052923142
ABSTRACT:
A syringe has a needle mounted in the lower end of a tubular mount. A protective cover, in the form of a sleeve, fits over this lower end of the tubular mount, and extends to fully cover the sharp end of the needle. The tubular mount has a pair of elongated, axial slots for the entry and exit of a cog or lug on the inside of the sleeve. Pressure on the sleeve slides the lug up the entry slot and exposes the needle. A cross over slot carries the lug to the exit slot, where it slides down to the lower end of the mount, and over a locking ridge to automatically and securely recover the needle. A spring, coupled between the mount and the sleeve has an axial force urging the sleeve down in either slot, and a rotary force urging the cog towards the exit slot. The lug must be in the entry slot to depress and use the needle, but the lug is then rotated to the exit slot and returned by the spring, automatically, to lock the lug in the safe, covering position of the sleeve.
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patent: 5201708 (1993-04-01), Martin
D'Alessio Larry M.
Romano John F.
Crowley Judith C.
Gunderson Charles F.
Hayes Paul J.
International Medical Consultants, Inc.
Rosenbaum C. Fred
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