DRILL FOR PASSING BLOOD-VESSEL OCCLUSIONS Russian patent published in 2010 - IPC A61B17/22 A61M29/00 A61M39/00 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices and methods for recovering blood flow in occluded blood vessels and for passing occlusions. Drill for passing in distal direction of occlusion in vessel contains working part of drill, which has flexible and elastic arch located on tangent line to rod and longitudinally superposed with distal end of rod. Arc has proximal end, rigidly connected with rod, arc back and distal end. Working part of drill is made with possibility to perform non-traumatic repeated operation in sequence, including bending of arc into arch-like condition with radial outward widening and release into unbent and straightened state, and vice versa. Arc of drill working part has convex surface, when it is bent in arch-like way, and working tip. In arch-like state working tip and convex surface of arc back are made with possibility to form, respectively, fixation of tip and fixation of arc in occlusion tissue, which are placed opposite to each other with space separation. Arc is made with possibility of asymmetric extension in radial direction outwards.

EFFECT: passing occlusion irrespective of operator's qualification and skill, as well as prevention of traumatic injury of vessels.

25 cl, 26 dwg