DEVICE FOR TAKING SAMPLES OF EMBRYO TISSUE OF NERVOUS SYSTEM Russian patent published in 1998 - IPC

FIELD: medical engineering. SUBSTANCE: device has hollow needle with operation end cut at an angle of $$$ and sharp edge formed as intersection of cylindrical and conical surface, and locking member. External surface of needle operation end has conical shape and cut angle is in the interval of 75< $$$ 80 deg. The needle has introduction depth stopper designed as hollow tube w union and arresting screw. EFFECT: enhanced accuracy in taking samples with retained morphological structure. 8 dwg