Huber needle with safety sheath
First Claim
Patent Images
1. A safety needle assembly comprisinga housing;
- a hollow needle secured in and extending from said housing;
a cap having a bore receiving said needle and being movable relative to said housing from a first position on said housing to an extended second position spaced from said housing;
a collapsible sheath of frusto-conical shape concentrically disposed about said needle in a collapsed state with said cap in said first position, said sheath being secured to and between said housing and said cap and being longitudinally extendable from said collapsed state to an extended state in response to movement of said cap from said first position to said extended position.
1 Assignment
0 Petitions
Accused Products
Abstract
The Huber needle assembly employs a straight needle with a bent distal end and a sheath of frusto-conical shape that tethers a cap to the housing in which the Huber needle is secured. The cap is movable from the housing to have the sheath cover the needle and carries a torsion spring that has a leg that snaps across a bore in the cap through which the distal end of the needle passes to block a return movement of the needle through the bore.
184 Citations
21 Claims
-
1. A safety needle assembly comprising
a housing; -
a hollow needle secured in and extending from said housing; a cap having a bore receiving said needle and being movable relative to said housing from a first position on said housing to an extended second position spaced from said housing; a collapsible sheath of frusto-conical shape concentrically disposed about said needle in a collapsed state with said cap in said first position, said sheath being secured to and between said housing and said cap and being longitudinally extendable from said collapsed state to an extended state in response to movement of said cap from said first position to said extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A safety needle assembly comprising
a housing; -
a hollow needle extending from said housing in depending manned and having a bent distal end; a cap disposed over said needle and having a bore for passage of said needle therethrough, said cap being movable relative to said needle from first position with said needle extending therethrough to a second position with said end of said needle disposed therein; a sheath secured to and between said housing and said cap concentrically of said needle, said sheath being extendable from a collapsed state to an extended state in response to movement of said cap from said first position to said second position thereof; and a torsion spring disposed in said cap, said spring having a leg based against said needle with said cap in said first position and disposed to move between said bore in said cap and said end of said needle with said cap in said second position. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A safety needle assembly comprising
a housing having a bore for receiving a flexible line for the delivery of a fluid and a chamber communicating with said bore for receiving liquid from said line; -
a hollow needle secured in and extending from said chamber perpendicularly of said bore for transferring liquid therefrom, said needle having a bent distal end; a cap having a bore receiving said needle and being movable relative to said housing from a first position on said housing to an extended second position spaced from said housing and receiving said end of said needle therein; a sheath secured to and between said housing and said cap concentrically of said needle, said sheath being extendable from a collapsed state to an extended state in response to movement of said cap from said first position to said second position thereof; and means in said cap for closing over said bore after said cap has been moved over said end of said needle. - View Dependent Claims (21)
-
Specification