Disposable shielded catheter-cannula insertion needle

Details Disposable shielded catheter-cannula insertion needle Disposable shielded catheter-cannula insertion needle

1988-12-19

1990-06-12

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604198, A61M 532

Patent

active

049329456

ABSTRACT:
A disposable, shielded catheter-cannula insertion needle wherein a catheter-cannula assembly is detachably connected to the distal end of a housing having a piston assembly slidably mounted therein. The insertion needle extends through the catheter-cannula and is connected to the piston assembly. A stem, including a cap, is detachably connected to the housing to provide a cover for the catheter-cannula and connectable to the piston assembly for drawing the contaminated insertion needle into a shielded position within the housing. The catheter-cannula assembly includes a self-sealing bushing for closing the flow-through passage in the catheter-cannula when the insertion needle has been removed therefrom.

REFERENCES:
patent: 1838039 (1931-12-01), Montuori
patent: 4710170 (1987-12-01), Haber et al.
patent: 4808169 (1989-02-01), Haber et al.

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