Biopsy needle for sampling histological specimens

摘要

The biopsy instrument for removing histological specimens from the human or animal body consists of a cannula (11) whose cutting edge (12) is pointed at the front and which can be displaced on a sampling needle (1) by a distance which corresponds at least to the length of a sampling notch (2) which is arranged behind the tip of the sampling needle (1) and together with the cannula (11) forms a pocket for receiving the histological specimens. At the end remote from the tip, the notch (2) of the sampling needle (1) runs out in a relatively large radius extending from the circumferential line to the sampling notch base (2), and at its end near the tip a surface is cut in which is directed perpendicular to the axis of the sampling needle. IMAGE