FIELD: medical engineering. SUBSTANCE: device comprises two articulated arms with their working parts made in the form of half-cones whose narrower ends have rigidly-secured jaws with cutting edges sharpened at 45 deg. When closed, the jaws form a blind endpiece with a pointed working end. The inactive part of one arm has a T-shaped section. The active part of the other arm has a groove to receive the first one. A flat spring is secured between handles. EFFECT: improved design. 4 dwg
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