Implanting device for femoral intertrochanteric fracture conformal nail

Abstract

The invention discloses an implanting device for a femoral intertrochanteric fracture conformal nail, which comprises a positioning handle and a kirschner wire calibration rod; the positioning handle is connected with the upper end of an intramedullary nail through an intramedullary nail connecting rod at the upper end of the positioning handle; a pull nail drill sleeve, an anti-rotation locking nail guide hole and a pressure nail drill sleeve are sequentially arranged on the positioning handle from top to bottom; a kirschner wire guide sleeve is sleeved with the pressure nail drill sleeve; a kirschner wire for guiding a pressure nail to be implanted into a bone is driven into a femoral head through the kirschner wire guide sleeve and a pressure nail hole in the intramedullary nail; the kirschner wire calibration rod penetrates through a through hole in the intramedullary nail connecting rod and is matched with the intramedullary nail connecting rod through threads; and the lower end of the kirschner wire calibration rod is inserted into the centre hole of the intramedullary nail and abuts against the kirschner wire driven into the pressure nail hole. According to the invention, the kirschner wire calibration rod is used for preventing the kirschner wire from shifting upwards when the kirschner wire is driven into a cortical bone; it can be guaranteed that the pressure nail is smoothly implanted into the bone according to the preset direction under the guidance of the kirschner wire; and therefore, the operation quality and the treatment effect are improved.

Description

technical field [0001] The invention relates to a device for implanting various internal fixation nails for treating femoral intertrochanteric fractures into bones, and belongs to the technical field of medical instruments. Background technique [0002] Intertrochanteric fracture, also known as intertrochanteric fracture, is a common orthopedic disease in clinical practice. The incidence rate also shows an increasing trend year by year, accounting for about 50% of hip fractures. If patients with this disease fail to receive timely and effective treatment and intervention, it can lead to the occurrence of various structural dysfunctions, and more seriously, even loss of lower limb mobility. Conservative treatment requires long-term bed rest, which will lead to more complications and threaten the life of the patient in severe cases. Therefore, surgical treatment is the best treatment for intertrochanteric fractures. [0003] The mainstream direction of surgical treatment fo...

AI Technical Summary

Problems solved by technology

However, in clinical use, due to the influence of the flexibility of the Kirschner wire itself, the front end of the Kirschner wire often deviates upwards after entering the cortical bone, so that the pointing of the Kirschner wire deviates from the predetermined direction, thus causing more trouble to the installation of the pressure nail. big difficulty

Images