Retractable syringe

Details Retractable syringe Retractable syringe

1999-01-14

1999-10-26

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604110, A61M 500

Patent

active

059719648

ABSTRACT:
A syringe system is providing including a body and a needle assembly including an elongated hollow shaft slidably positioned within the body. Also included is a plunger assembly for expelling fluid from within the body out through the shaft of the needle assembly and further for engaging the needle assembly upon abutment therewith. This allows withdrawal of the shaft of the needle assembly into the body. Next provided is a locking mechanism for precluding reinsertion of the shaft of the needle assembly exterior of the body.

REFERENCES:
patent: 4838869 (1989-06-01), Allard
patent: 4874382 (1989-10-01), Lindemann et al.
patent: 5295973 (1994-03-01), Chen
patent: 5342310 (1994-08-01), Ueyama et al.
patent: 5496278 (1996-03-01), Buff

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