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US 2001/0044608 A1Published application
Needle shield for a prefillable syringe
OwnerRobert B. Odell, Sandor Gyureinventors
Life of this patent
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Abstract
A syringe assembly includes a needle sheath that has a cavity that receives a needle cannula. The needle sheath can be formed of materials such as thermoplastic elastomers or plastics yet still be utilized with conventional gas sterilizing processes. The needle sheath includes a passage that permits the sterilizing gases to enter the cavity while preventing entry of microorganisms into the cavity. Thus, a syringe assembly is provided that facilitates sterilizing a needle after the needle sheath has been placed over the needle.
Claims20
A needle sheath for a syringe comprising:
- a body portion having a cavity with an opening at a first end and being closed at a second end opposite said first end;
- and
- a passage in communication with said first end of said cavity, said passage having a shape that permits gas from the external atmosphere to flow into said cavity and simultaneously prevents entry of microorganisms from the external atmosphere into said cavity.
A syringe assembly comprising:
- a syringe body;
- a needle cannula supported by said syringe body;
- a needle sheath having a body portion, said body portion having a cavity with an opening at a first end and being closed at a second end opposite said first end, said cavity receiving said needle cannula, said cavity being supported on and sealingly engaging said syringe body;
- and
- a passage in communication with said first end of said cavity, said passage having a shape that permits gas from the external atmosphere to flow into said cavity and simultaneously prevents entry of microorganisms from the external atmosphere into said cavity.
2 more elements
Dependencies are inferred from the claim text.