Improved syringe with retractable needle

Details Improved syringe with retractable needle Improved syringe with retractable needle

A - Human Necessities

61

M

A61M 5/50 (2006.01)

Patent

CA 2566726

A syringe retraction arrangement including a retaining means (70) mounted on the syringe barrel to retain the syringe within a sleeve assembly (40) on retraction of the hypodermic needle into the sleeve assembly (40). The retaining means (70) includes at least one extension (76, 77), the extension (76, 77) extending outwardly in a radial direction and towards a needle end of the sleeve assembly (40) where he needle (45) resides and wherein the free end of the at least one extension (76, 77) engages an abutment (78, 79) in the sleeve assembly (40) with the abutment (78, 79) acting as a bearing surface for the at least one extension (76, 77) thereby retaining the syringe within the sleeve assembly (40) after retraction.

La présente invention concerne un ensemble de rétraction pour seringue comprenant un moyen de rétention (70) monté sur le corps de seringue de manière à retenir la seringue à l'intérieur un ensemble manchon (40) au moment de la rétraction de l'aiguille hypodermique dans ledit ensemble manchon (40). Le moyen de rétention (70) comprend au moins une extension (76, 77) qui s'étend vers l'extérieur de manière radiale et vers une extrémité aiguille de l'ensemble manchon (40) où l'aiguille (45) se trouve; l'extrémité libre de ladite extension (76, 77) entrant en contact avec une butée (78, 79) à l'intérieur de l'ensemble manchon (40), la butée (78, 79) servant de surface de support pour ladite extension (76, 77), ce qui permet de retenir la seringue à l'intérieur de l'ensemble manchon (40) après la rétraction.

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