Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2005-11-29
2005-11-29
Sirmons, Kevin C. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
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.
Konrad Peter
Krantz Heiko
Hager & Werken GmbH & Co. KG
Huckett Gudrun E.
Sirmons Kevin C.
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