FIELD: medicine. SUBSTANCE: device has parallel rods 3, 6 with threaded ends 7 on which rod holders 1 in the form of plates with holes are mounted as spring-loaded. The holes are located in the polygon vertexes in which sharpened rods 2 with threaded fastening ends 5 are placed. EFFECT: simpler design. 2 dwg
Authors
Dates
1995-01-09—Published
1990-05-17—Filed