Patent ID: 9743915
Date: 2017-08-29
CPC Classifications: A61B,A61M

Claim:
1. An Advanced Biopsy Needle comprising: an outer needle comprising a hollow metal wire having a shaft, a sharp end, a fastening end, a first cutting slot and a second cutting slot, each cutting slot comprising a fenestration opening having lateral walls wherein at least one lateral wall has a sharp cutting surface; the at least one lateral wall of each cutting slot being generally parallel to the axis of the outer needle to remove tissue at a specific needle insertion depth when the outer needle is rotated; an outer needle hub affixed to the fastening end of the outer needle; an inner needle comprising a hollow metal wire having a shaft, a sharp end and a fastening end; and an inner needle hub affixed to the fastening end of the inner needle; wherein the outer needle and the inner needle are arranged coaxial with each other such that the outer needle and the inner needle penetrate tissue together and wherein the inner needle can be removed from the outer needle once inner needle fluidic cellular aspiration is performed; the sharp end of the hollow metal wire of the inner needle being configured to pass through the sharp end of the hollow metal wire of the outer needle when the outer needle and the inner needle are arranged coaxial with each other to allow for inner needle fluidic cellular aspiration with the outer needle in place; and wherein the inner needle prevents tissue from entering the cutting slots of the outer needle until a specific needle insertion depth is achieved and the inner needle is then removed from the outer needle.