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US 10,058,651 B1Granted
Safety needle device for accessing a medical port
OwnerDean H. Iwasaki, James V. Mercer +1inventors
InventorsDean H. Iwasaki, James V. Mercer, Thomas L. Taccini
Life of this patent
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Abstract
A Safety Huber needle assembly comprising a needle used to pierce the septum of an implanted venous port, a baseplate that rests against the insertion site and a pivotally displaceable housing that acts to remove the needle from the septum of the implanted port and to effectively enclose the needle to provide user safety when the housing is displaced to a needle securing state.
Claims16
A safety needle assembly for use in accessing an implanted venous infusion port comprising:
- a. a baseplate component which provides a stable interface for said safety needle assembly at a port access site;
- b. a housing comprising an elongated body pivotally affixed at one end to said baseplate and comprising a pair of gripping posts disposed on the other end, said housing being displaceable to two stable states comprising a first state in which said body is disposed parallel to said baseplate from which said body is displaced by application of digital force upon gripping posts of said body to pivot said body to a second state wherein said body is essentially orthogonal to said baseplate;
- c. a cam which is swivelly affixed to said housing, said cam comprising an orifice through which a segment of a needle is disposed, said cam and said orifice rotating to provide vertical displacement of the needle assembly, a portion of which slides within said orifice, as said housing is displaced from the first state to the second state;
- and
- d. the needle assembly comprising a first vertically disposed segment and a second segment residing in said orifice, said first segment being displaced to penetrate and access a port when the housing is disposed in a first state and being retracted from the access site to be enclosed for safety when the housing is displaced to the second state by action of said cam against said orifice residing segment.
2 more elements
A safety needle assembly for use in accessing an implanted venous infusion port comprising:
- a. a baseplate comprising an aperture through which a needle can freely pass;
- b. a housing comprising an elongated body and which is rotatably affixed to said baseplate, said housing comprising a fixture for the retention of a rotating cam, said housing further comprising hinged connecting structure whereby the housing is affixed to the baseplate for being angularly displaceable between a first state where the elongated portion is parallel with the baseplate and a second state where the elongated body is essentially orthogonal to the baseplate baseplate and gripping posts whereby the housing is digitally displaced from the first state to the second state;
- c. the cam comprising a hollow channel there-thru and two side projections which fit into the housing to provide an axis about which said cam pivots when said housing is rotated to the second state, said channel providing a pathway by which a segment of a needle is displaced
- d. a needle subassembly comprising an elongated cannula having a sharpened, tapered tip, a lumen of consistent size there-thru and an outflow orifice and being bent to form a plurality of segments comprising a vertical segment which ends at said tip, a non-vertical segment bent at an angle consistent with displacement via arcuate motion of said cam and a connecting segment for communicating with an extension set;
- e. an extension set affixed at the connecting segment of the needle assembly.
2 more elements
Dependencies are inferred from the claim text.