Proximal femoral reaming position indicator

Abstract

The invention discloses a proximal femoral reaming position indicator. The proximal femoral reaming position indicator comprises a locating pin, a guide pin sleeve, a guide pin sleeve frame, a second rotation shaft, a third adjusting lever, a kirschner wire sleeve, a first guide pin, a sleeve frame, a first turn table, a second turn table, a third turn table and a fourth turn table, wherein the locating pin is sleeved by the guide pin sleeve and can be conveniently taken out; the guide pin sleeve sleeves the guide pin sleeve frame, and can be fixed by a fastening bolt fixed on the guide pin sleeve frame; the guide pin sleeve frame is fixed on a bracket, and is adjusted on the bracket vertically by rotating a first round nut; the fourth turn table is in rigid connection with an expansion link; the sleeve sleeves the first guide pin, and the sleeve is axially located through a locknut; the first guide pin is in sleeving connection with the sleeve frame. With the adoption of the proximal femoral reaming position indicator, the surgical opening of an intramedullary nail becomes small, and the minimally invasive surgery is realized; the locating is accurate, so that the surgical effect is good; the operation is simple, so that the surgical efficiency is greatly improved; the remote operation is realized, so that the ray injury caused to a doctor is avoided.

Description

technical field [0001] The invention relates to the medical field, in particular to a proximal femur reaming locator. Background technique [0002] Intramedullary nails are orthopedic internal fixation devices in medical devices. The structure has an intramedullary nail rod, a proximal locking screw hole is arranged at the proximal end of the intramedullary nail rod, and a decompression plane is arranged on the surface of the intramedullary nail rod. There is more than one strip-shaped decompression plane on the surface of the intramedullary nail rod, and the decompression plane can be from the proximal end of the intramedullary nail rod to the distal end of the intramedullary nail rod. The proximal end of the intramedullary nail rod is provided with a locking screw rod positioning screw hole and a connecting sleeve positioning groove. Intramedullary nailing is the first choice for internal fixation of femoral shaft fractures. The insertion point of the femoral intramedul...

AI Technical Summary

Problems solved by technology

[0003] With the popularity of intramedullary nails, intramedullary nails are widely used, but the installation of intramedullary nails requires reaming of the proximal femur, so the position of reaming is extremely important to the success of the operation, and now due to the lack of corresponding positioning tools , so that the operation efficiency is low, the difficulty is high, and the wound is large, which leads to many operation failures or poor postoperative recovery. Therefore, an instrument that is convenient for reaming and positioning is urgently needed to reduce the risk of surgery.

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