Syringe

Details Syringe Syringe

1982-08-04

1984-08-28

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 500

Patent

active

044682239

ABSTRACT:
A syringe comprises a cylinder with a cannula embedded in the tip portion of the cylinder and a protector cap mounted on the tip portion for protecting the cannula. Prior art syringes in which the front end of the cylinder is in close contact with the rear end of the protector are difficult to gas-sterilize because the interior space between the protector and the tip portion is sealed. The cylinder tip portion is provided with at least one first rib or channel and the cylinder front end with at least one second rib or channel that together form a passage for fluid communication between the interior of the protector cap and the outside of the cylinder such that the syringe can be fully gas-sterilized with the protector cap mounted. The second rib(s) or channel(s) also functions to restrict the advance of the protector cap to prevent damage to the cannula.

REFERENCES:
patent: 3112747 (1963-12-01), Cowley
patent: 3370588 (1968-02-01), Burke
patent: 3381813 (1968-05-01), Coanda et al.
patent: 4240425 (1980-12-01), Akhaui

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