| 摘要 |
FIELD: medical engineering. ^ SUBSTANCE: device has notched handle, bearing rod manufactured as a whole with the handle, working part and stop nut. External surface of the stop nut has convex notches. The internal surface is double-staged. One stage is threaded. Diameter of the other one is greater than working part diameter. Bearing rod part is smoothly curved at an angle of 90° on the opposite end relative to the handle. It has an opening which axis is parallel to handle axis. The working part has measurement hairlines and shaped as bluntly rounded cylinder on one end and threaded on the other end. Tail part is rigidly fixed in hole by means of threaded connection. The nut is axially movably screwed over the tail part along the cylindrical body of the working part and its end surface is fixable at each hairline level. ^ EFFECT: high accuracy in selecting working part height. ^ 1 dwg |
