A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
128/113
A61B 17/14 (2006.01)
Patent
CA 1044979
SURGICAL INSTRUMENT FOR OPERATION OF ANTERIOR FENESTRATED SPONDYLODESIS IN VERTEBRAL OSTEOCHONDROSIS Abstract of the Disclosure A surgical instrument for the surgical operation of anterior fenestrated spondylodesis comprising an elongated hollow body with a handle at one end, and a detachable hollow cylindrical cutter with a cutting edge, at the other. Incorpo- rated within the body is a shaft with a knife on the end situa- ted within the cavity of the cutter. The instrument has a de- vice for locking the shaft in the body in a position whereat the blades and cutting edge of the knife and the cutter lie in the same plane. The cutter is intended for excising two transplants in the shape of cylindrical segments from two adja- cent vertebrae, and the knife, for undercutting them, once they are formed by the cutter. Also situated in the cutter's cavity is a limit flange secured on the shaft, which comes in contact with the surface of the vertebral bodies and restricts the depth to which the knife descends into the intervertebral slit and, together with a stop on the rear end of the body interact- ing with the end of the shaft, ensures the right depth of the cutter's penetration into the adjacent vertebral bodies. The instrument is reliable, does not endanger, during surgery, nearby large vessels and nerve formations, and pre- cludes the penetration of the knife into the vertebral canal. The instrument permits the operation to be performed on any region of the spinal column. - 2 -
254230
Furman Motel K.
Jumashev Georgy S.
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