Needle tip guard for percutaneous entry needles
First Claim
1. A needle protective device comprising:
- (a) an elongate needle having proximal and distal ends and a change in axis formed intermediate said proximal and distal ends;
(b) a needle guard mounted on said needle and slidable along a portion of said needle between said proximal end and said change in axis, said needle guard being engageable with said change in axis such that the distal advancement of said needle guard is stopped at said change in axis, said needle guard having a needle trap for covering said sharpened distal end of said needle substantially coincident with when said needle guard engages said change in axis.
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Reexamination
Accused Products
Abstract
A needle tip protective device for use with percutaneous entry needles. In one embodiment, the needle tip protective device includes a needle guard slidably mounted on a hypodermic needle, the latter having a needle tip located at the distal end thereof, and a change of profile formed medially there along. The needle guard is movable along the hypodermic needle and engageable with the change in profile formed thereon. The engagement with the change in profile is configured to correspond with the ability of the needle trap to entrap the needle tip once the needle trap has advanced the sufficient distance distally along the hypodermic needle. In further refinements, the needle trap may be biased toward the distal needle tip of the needle.
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Citations
10 Claims
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1. A needle protective device comprising:
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(a) an elongate needle having proximal and distal ends and a change in axis formed intermediate said proximal and distal ends;
(b) a needle guard mounted on said needle and slidable along a portion of said needle between said proximal end and said change in axis, said needle guard being engageable with said change in axis such that the distal advancement of said needle guard is stopped at said change in axis, said needle guard having a needle trap for covering said sharpened distal end of said needle substantially coincident with when said needle guard engages said change in axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification