DEVICE FOR BIOPSY Russian patent published in 2002 - IPC

FIELD: medical equipment, more specifically, devices for percutaneous biopsy of internal organs, particularly, kidneys. SUBSTANCE: device has a hollow body accommodating coaxial external cannula and internal stilet. Sliders of cannula and stilet are made in the form of two lengthened members installed for longitudinal motion relative to each other and to the body. Lengthened members have springy parts and keys. There are limiters of longitudinal motion of cannula and stilet and locks located on springy members to exclude spontaneous motion of cannula and stilet sliders from initial position. Sliders have common surface of joint having two parallel planes. Stilet and cannula inoperative ends are provided with inserts for installation in corresponding fixing members made on parallel planes of sliders. Stilet slider key is installed for sliding over plane of joint and located in front of cannula slider key with its overlapping. EFFECT: reliable and simple in use device with extended functional potentialities ensuring quick removal of stilet and cannula and their replacement in taking several samples from the same patient. 3 cl, 4 dwg