Injection syringe and disposal container for injection...

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Reexamination Certificate

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Details

C604S187000

Reexamination Certificate

active

06969374

ABSTRACT:
An injection syringe has a housing for a medicament ampule and a plunger movable longitudinally in the housing. A holder is connected to the syringe housing for detachably mounting an injection needle unit having a cannula support. The cannula support has a rearward end provided with a radial outer flange ring. A spreading sleeve is provided that is fastened with a cylinder ring on the syringe housing and has several elastic spreading tongues provided with forward ends remote from the cylinder ring and forming an annular cage. The spreading tongues have radial inner noses engaging the flange ring when the injection needle unit is inserted into the holder. An outer sliding sleeve surrounds the spreading sleeve and is movable against a spring force rearwardly. The front end of the sliding sleeve has an annular adjusting element that, upon rearward movement of the sliding sleeve, pushes the spreading tongues radially outwardly.

REFERENCES:
patent: 4664653 (1987-05-01), Sagstetter et al.

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