发明名称 |
ROBUST NOSE TORQUE-LIMITING DEVICE |
摘要 |
A torque-limiting driver is disclosed, having a handle, a body, a torque-limiting assembly and a work-piece engaging tip. The torque-limiting assembly includes an upper and lower shank that have a plurality of teeth circumferentially spaced. The teeth have a vertical face, an inclined face, and a flat peak. There is a spring for applying pressure across the upper and lower shank with multiple washers interposed between the lower shaft and spring. In some instances, there is a round-square drive with arched catches having preselected radii to assure operation over certain cycles at selected torque and to reduce nose cone damage and breakage at a predetermined measurement of inch-pounds of torque. |
申请公布号 |
WO2012112812(A3) |
申请公布日期 |
2012.11.08 |
申请号 |
WO2012US25514 |
申请日期 |
2012.02.16 |
申请人 |
ECA MEDICAL INSTRUMENTS;NINO, JOHN;IVINSON, DAVID |
发明人 |
NINO, JOHN;IVINSON, DAVID |
分类号 |
B25B23/14;A61B17/16;A61B19/00 |
主分类号 |
B25B23/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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