Injection needle
First Claim
1. A needle assembly comprising an injection needle mounted in a needle hub and having first and second needle portions extending therefrom, wherein said needle hub is designed to fit onto an injection device containing a cartridge sealed by a membrane such that said first needle portion penetrates such membrane, and wherein said second needle portion may be inserted into a patient such that preset doses of a medicine from such cartridge may be administered, wherein said second needle portion projects from said hub by a distance which is less than 9 mm, and wherein said needle has an outer diameter and a bore diameter which comply with one of the following conditions:
- a) the outer diameter is smaller than 0.320 mm and the diameter of the bore is larger than 0.165 mm, orb) the outer diameter is smaller than 0.298 mm and the diameter of the bore is larger than 0.133 mm.
1 Assignment
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Accused Products
Abstract
The present invention relates to a needle mounted in a needle hub fitting onto an injection device from which preset doses of a medicine from a cartridge accommodated in the device is administered through the needle comprises a back needle penetrating a closure membrane of the cartridge and a free injection part shorter than 9 mm, the outer diameter of the needle and the diameter of its bore complying with one of the conditions: a) the outer diameter is smaller than 0.320 mm and the diameter of the bore is larger than 0.165 mm, or b) the outer diameter is smaller than 0.298 mm and the diameter of the bore is larger than 0.133 mm.
219 Citations
8 Claims
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1. A needle assembly comprising an injection needle mounted in a needle hub and having first and second needle portions extending therefrom, wherein said needle hub is designed to fit onto an injection device containing a cartridge sealed by a membrane such that said first needle portion penetrates such membrane, and wherein said second needle portion may be inserted into a patient such that preset doses of a medicine from such cartridge may be administered, wherein said second needle portion projects from said hub by a distance which is less than 9 mm, and wherein said needle has an outer diameter and a bore diameter which comply with one of the following conditions:
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a) the outer diameter is smaller than 0.320 mm and the diameter of the bore is larger than 0.165 mm, or b) the outer diameter is smaller than 0.298 mm and the diameter of the bore is larger than 0.133 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification