Intradermal syringe and needle assembly
First Claim
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1. A needle assembly for an intradermal injection device comprising:
- a needle cannula having a needle tip; and
a limiter surrounding said needle cannula and having a skin engaging surface, wherein said limiter is moveable from a first position in which an elongate portion of said needle cannula is exposed, to a locked second position in which said limiter is not movable from said second position to said first position and in which said needle tip extends beyond said skin engaging surface a distance of about 3 mm or less.
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Abstract
A needle assembly for an intradermal injection device, and a drug delivery device, having a needle cannula having a needle tip and a limiter surrounding the needle cannula and having a skin engaging surface, wherein the limiter is moveable from a first position in which an elongate portion of the needle cannula is exposed, to a locked second position in which the limiter is not movable from the second position to the first position and in which the needle tip extends beyond the skin engaging surface a distance of about 3 mm or less.
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Citations
27 Claims
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1. A needle assembly for an intradermal injection device comprising:
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a needle cannula having a needle tip; and
a limiter surrounding said needle cannula and having a skin engaging surface, wherein said limiter is moveable from a first position in which an elongate portion of said needle cannula is exposed, to a locked second position in which said limiter is not movable from said second position to said first position and in which said needle tip extends beyond said skin engaging surface a distance of about 3 mm or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A drug delivery device for use in administering intradermal injections, comprising:
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a needle cannula having a needle tip;
a limiter surrounding said needle cannula and having a skin engaging surface, wherein said limiter is moveable from a first position in which an elongate portion of said needle cannula is exposed, to a locked position in which said limiter is not movable from said second position to said first position and in which said needle tip extends beyond said skin engaging surface a distance of about 3 mm or less; and
a container adapted to contain a substance for intradermal injection, said container being in fluid communication with said needle cannula. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification