FIELD: medical engineering. SUBSTANCE: device has a tapping sampling cone having conically sharpened end area of 40-45 deg with two flat facets each forming a cutting edge. The edges are sharpened and connected to each other with a cross-member. The sampling cone has teeth for cutting buttress thread profile, threaded area and tail part. Rod area covered with buttress thread has thread profile of parabolic shape. EFFECT: increased contact area; increased fixation rigidity. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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RU2222282C2 |
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| WIRE FOR OSTEOSYNTHESIS | 0 |
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|
RU2136243C1 |
| SCREW TAP | 0 |
|
SU1585162A1 |
