FIELD: medical engineering. SUBSTANCE: device has ring-shaped supports with needles and bar pivotally connected with the supports. The bar has tubular casing with longitudinal slot and threaded stem at one of the ends, threaded rod with slide block mounted in the casing. The slide block has projection placed into the slot in the tubular casing of union engageable with the projection so that the threaded stem and the union are pivotally connected to the supports by means of strips. EFFECT: enhanced effectiveness in distracting nerve trunks. 5 dwg
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Authors
Dates
1996-06-10—Published
1993-06-23—Filed