Punch biopsy device

摘要

A punch biopsy device is disclosed with an integrated tissue base cutting component. In an embodiment, the punch biopsy device includes a cutting blade with first and second arms operatively coupled to a handle. The punch biopsy device includes a prong flexible and integral to the cutting blade, the prong comprising top and lateral sharp edges configured to pierce and cut tissue, respectively. The prong is configured to be inserted into a body in a neutral position with the prong parallel with the first and second arms. The prong is configured to move to a position perpendicular to the first and second arms when the cutting blade is withdrawn to allow for the prong to catch and pierce the tissue. The prong is configured to cut the tissue while in the position perpendicular to the first and second arms when the cutting blade is rotated manually via the handle.

主权项

1. A punch biopsy device comprising:
a cutting blade with first and second arms operatively coupled to a handle, and the cutting blade being circular in shape; and a prong flexible and integral to the cutting blade, the prong comprising a top sharp edge and lateral sharp edges configured to pierce and cut tissue, respectively, each of the lateral sharp edges extending from the cutting blade to the top sharp edge of the prong; wherein the prong is configured to be inserted into a body in a neutral position with the prong parallel with the first and second arms; wherein the prong is configured to move to a position perpendicular to the first and second arms as the cutting blade is pulled out of a patient to allow for the prong to catch and pierce the tissue; and wherein the prong is configured to cut the tissue along a distance from the cutting blade to the top sharp edge of the prong while in the position perpendicular to the first and second arms when the cutting blade is rotated manually via the handle.