A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01) A61M 5/00 (2006.01) A61M 5/31 (2006.01)
Patent
CA 2178771
The invention relates to a prefill syringe provided with a cylindrical cartridge into which a rubber stopper is inserted, and having a needle holder at one end and a collar at the other end thereof, the needle holder being capable of receiving a needle assembly comprising a cannula and a needle. A cap for protecting the needle holder is attached to the needle holder, leaving a gap between the needle holder and the cap whereby vapor or gas can enter into the cartridge during vapor or gas sterilization performed prior to filling the cartridge with a drug. Alternatively, where a syringe needle is attached to the needle holder, a protector is attached in place of the cap to cover the needle. An elastic cylindrical member is externally engaged to span the needle holder and the cap (or the protector) so as to cover the gap provided between the needle holder and the cap (or protector) in order to seal the cartridge after it has been filled with the drug. One or more ring-shaped projections which contact the outer peripheral surface of the needle holder and the outer peripheral surface of the cap are formed on the inner periphery of the elastic cylindrical member.
Arte Corporation
Marks & Clerk
LandOfFree
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