Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1994-03-17
1995-03-07
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
053953460
ABSTRACT:
The present invention relates to a disposable syringe construction including a retractable or withdrawing needle, which comprises a cylindric body defining, at one end thereof, an end piece for the connection of the needle, and being open, at the other end thereof, for receiving a piston therein, provided with a sealing gasket.
The main feature of the invention is that the end piece is provided in its inside with a cutout for coupling with abutment legs of a hub element to which the point of the needle is connected, an outer collar being moreover provided, which can be applied to the end of the end piece so as to prevent the hub and related needle to be outwardly ejected.
REFERENCES:
patent: 4950241 (1990-08-01), Ranford
patent: 5047016 (1991-07-01), Dolgin et al.
patent: 5084029 (1992-01-01), Nacci et al.
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