Core bite biopsy needle

Details Core bite biopsy needle Core bite biopsy needle

A - Human Necessities

61

B

A61B 10/00 (2006.01)

Patent

CA 2389972

A biopsy needle that is based upon an opening at the tip of the needle, not the side, that permits the entire sample to be cut from the patient yet has smooth sides to reduce injury to the patient when the needle is inserted. The needle of the invention has a coaxial inner needle or tube that allows the opening at the tip to be completely closed and the sample or specimen to be cut off at its point of attachment after insertion of the needle. The needle of the invention samples tissue in front of the needle as it is pushed forward, rather than scraping tissue from the edges of the needle track. In accordance with the invention, the coaxial inner needle can be withdrawn and the sample obtained without moving the outer needle or tube. Several samples can thus be obtained with minimal need for repositioning the needle avoiding pain, tissue damage and risks associated with such repositioning.

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