Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1998-04-08
1999-03-23
Coggins, Wynn Wood
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604110, 604240, A61M 532, A61M 500
Patent
active
058852565
ABSTRACT:
A safety syringe is particularly equipped with a needle receiving tube which safely facilitates the mounting and dismounting of a disposed needle. The safety syringe has a container, an injection rod, a needle and a needle receiving tube. The needle can be withdrawn into the container via rotation of the injection rod after being used for disposal so as to protect hospital personnel from being accidentally punctured by a disposed needle which can cause fatal contagion of various diseases. The container is provided with a protruded needle mounting neck having a lid attached to the edge thereof. The injection rod housed in the container has a rubber piston head which is provided with a plunger end. The plunger end is made up of 4 symmetric plane extensions each having a round projection on the edge of each plane extension. The needle has a slantly cut shot end and a threaded engagement bottom end which is internally provided with 4 symmetric plane lugs and a protruded ring at the edge thereof for retaining purpose. The plunger end of the injection rod can firmly engage with the bottom end of the needle in the mounting and dismounting of a needle housed in a needle receiving tube so as to protect a hospital personnel from being accidentally punctured by a disposed needle.
REFERENCES:
patent: 4883471 (1989-11-01), Braginetz et al.
patent: 5098402 (1992-03-01), Davis
patent: 5242401 (1993-09-01), Colsky
patent: 5273543 (1993-12-01), Bell et al.
patent: 5554126 (1996-09-01), Filley
patent: 5634903 (1997-06-01), Kurose et al.
patent: 5687740 (1997-11-01), Sheridan
patent: 5688240 (1997-11-01), Novacek et al.
Chern Jinq-Shing
Han Yuh-Lin
Chern Jinq-Shing
Coggins Wynn Wood
Hayes Michael J.
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