A syringe or ampoule sealing device

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/31 (2006.01) A61J 1/06 (2006.01) A61M 5/24 (2006.01)

Patent

CA 2254686

The more particularly pre-filled syringe or ampoule is intended for medical purposes and displays a syringe barrel and as required a syringe plunger that can be moved by means of a plunger actuating rod. On the end of the syringe barrel where the cannula is inserted, a cover piece is axially fitted so that it enclasps the end of the syringe barrel in which the cannula is inserted. As well, a sealing element is provided, which is interposed between the face of the syringe barrel and the cover piece, and whose face on the one side abuts the syringe barrel, and on the other side the inner face of the cover piece. The cover piece is at the same time provided with a central recess for penetration by a cannula or needle, as well as with a security cap enclosing the cover piece, and which is conformably fitted onto the cover piece and held in the installed position on the cover piece. In the interior of the security cap is arranged an elastic sealing piece which projects into the central recess of the cover piece and which abuts the surface of the sealing element.

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