Patent ID: 11918253
Assignee: SHANGHAI UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 4:
5. The active variable stiffness clamping device for pelvic fracture reduction robot according to claim 4, wherein the second-stage cylinder is provided with a second-stage spiral hole, the second-stage spiral hole is in fit with a third-stage adjusting boss arranged on the third-stage cylinder, an affected side pin in clearance fit with the second-stage cylinder and the third-state cylinder is nested in the first-stage cylinder, the affected side pin is in running fit with a ball bushing nested in the third-stage cylinder, and the top end of the affected side pin is in fit with the elastic collet; an inner cylinder straight groove in fit with the third-stage adjusting boss is arranged on the inner cylinder holder; and the first-stage cylinder is provided with a gearbox casing in fit with the gear.