INSTRUMENT FOR BIOPSY AND DISPOSABLE SET OF INSTRUMENTS FOR BIOPSY Russian patent published in 2000 - IPC

FIELD: instruments and devices for taking of specimens of tissues of human-being or animals, in particular, by dissection of tissue segments. SUBSTANCE: the disposable set of instruments for biopsy has a cannula with a hole in the wall near the end, probe and a movable tube for installation on the cannula. The tube has an end with a projection in the form of a ring for insertion in the wall hole and retaining of the tissue specimen in the cannula. The probe is designed for installation in the cannula for sliding. On the ends of the cannula and tube provision is made for the respective first and second heads. The heads have means for mutual connection for moving apart. The instrument for biopsy has a tubular cannula with axial and lateral holes and a cylindrical tube. The tube has a front end with a hole that communicates with the tube duct and a projection, whose end is bent to the tube axis. The cannula is made for installation in the tube cannula, and the tube end is shaped for introduction in the hole in the cannula wall. EFFECT: reduced trauma inflicted to the patient in the process of extraction of tissue, extraction of a specimen preserving the microscopic and macroscopic properties of the extracted tissue. 6 cl, 12 dwg