Disposable safety syringe and method of making the same

Details Disposable safety syringe and method of making the same Disposable safety syringe and method of making the same

1997-10-02

1999-04-06

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604198, 604263, A61M 500

Patent

active

058910921

ABSTRACT:
A medication delivery device for delivering medication using a piercing member. The medication delivery device includes a housing, a piercing member holder, a delivery actuator and a sealing diaphragm. The housing is for holding medication to be delivered, and includes a piercing member end and a delivery actuator end. The piercing member holder is coupled to the housing at the piercing member end and is adapted to secure the piercing member to the housing. The piercing member holder includes a sealing member that contacts the housing, a slideable protective cover coupled to the sealing member that slides over and contains the piercing member after a delivery of medication is delivered, and a disabling member for holding the piercing member, which is coupled to the housing at the piercing member end and configured to contact the sealing member to form a sealed passage for medication contained in the housing. The delivery actuator member is coupled to the delivery actuator end of the housing and adapted to expel the medication from the housing. The sealing diaphragm is coupled to one end of the delivery actuator to minimize contact of the medication with the delivery actuator and to substantially prevent leakage of medication through the delivery actuator. As an injection is completed, the disabling member of the piercing member holder contacts the sealing diaphragm and breaks it so that it is rendered incapable of performing future injections, and the delivery actuator member displaces the sealing member of the piercing member holder to slide the slidable cover over the piecing member to cover the piercing member and render it incapable of performing future injections.

REFERENCES:
patent: 5254100 (1993-10-01), Huband
patent: 5267977 (1993-12-01), Feeney
patent: 5279584 (1994-01-01), Dillard, III et al.
patent: 5330430 (1994-07-01), Sullivan
patent: 5342309 (1994-08-01), Hausser
patent: 5445620 (1995-08-01), Haber et al.
patent: 5713873 (1998-02-01), Jehle

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