FIELD: traumatology; orthopaedic. SUBSTANCE: chisel has handle 1 with back edge 2, neck and working part 3 provided with removable movable guide in form of fixing pins 11. Pins 11 additionally have removable frame 8 with two and more clamping units and profiled slot 9 for working part 3. Working part 3 has groove-shaped cross-section, semi-round cutting edge 4 and longitudinal recess 5 for guiding screw 7 fastened to frame 8. One side of working part 3 is provided with protrusion 12 provided with inclined tooth-shaped teeth of file 13; protrusion 12 is placed along the slot. Teeth of file 13 is disposed for interaction with additional inclined teeth of file 14, which is made onto internal surface of profiled slot 9. Tooth of teeth of file 13 and 14 are made congruent and directed to opposite sides. Tooth of teeth of file 13, disposed on protrusion 12, may be made inclined and directed to handle 1. Flat spring 15 may be fixed inside profiled slot 9. Spring 15 is mounted for interaction with working part 3. EFFECT: improved efficiency of operation. 3 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CHISEL | 1993 |
|
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| CHISEL | 1993 |
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| GOUGE | 1993 |
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| DEVICE FOR CURING POST-OPERATIONAL AND PURULENT CAVITIES | 1991 |
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RU2026085C1 |
