An invasive tubular surgical instrument designed to be connected to a biopsy gun handpiece (not included) for the automatic extraction of a small tissue sample from an anatomical structure (a biopsy), while causing minimal surrounding tissue damage, for tissue pathological examination/testing. It is a percutaneously-inserted needle with a side-notch cutter at the distal end which when activated causes a sharp, sliding cannula to slice a segment of tissue. It is typically used to obtain samples of soft tissue from the kidneys, prostate, pancreas, liver, and breast, often performed under image guidance. This is a single-use device.