Femoral intramedullary nail guiding needle orientator

Abstract

The invention discloses a femoral intramedullary nail guiding needle orientator. The orientator mainly comprises an orientation scale main body, one end of the orientation scale main body is connectedwith a orientation scale far-end limit buckle in an integrally forming manner, an external thread is arranged at the other end of an orientator scale near-end limit buckle, and the external thread ismovably connected with the orientator scale near-end limit buckle with an internal thread in a screw manner; and the orientation scale main body is of a hollow structure mutually matched with an intramedullary nail guide needle. The surgical instrument certainly transforms the guide needle, and blocking of hip muscle and ilium is skillfully avoided, so that the guide needle can be accurately aligned to a medullary cavity and placed smoothly.

Description

technical field [0001] The invention relates to the related technical field of medical devices, in particular to a femoral intramedullary nail guide needle orientator. Background technique [0002] Intramedullary nailing is often used for femoral trochanteric fractures, and the main difficulties in intramedullary nailing are: 1. Accurate selection of puncture points, and 2. Accurate insertion of the guide needle into the medullary cavity. Accurate selection of the puncture point is a prerequisite for the smooth insertion of the intramedullary nail, which has been solved by C-arm X-ray machine fluoroscopy. However, the accurate insertion of the guide needle has not been solved for a long time. The main difficulty is that it is blocked by the buttock muscles above the greater trochanter of the femoral head and the anterior wing of the ilium. It is difficult to accurately insert into the femoral medullary cavity below the greater trochanter of the femur. It often either penetr...

AI Technical Summary

Problems solved by technology

However, the accurate insertion of the guide needle has not been solved for a long time. The main difficulty is that it is blocked by the buttock muscles above the greater trochanter of the femoral head and the anterior wing of the ilium. It is difficult to accurately insert into the femoral medullary cavity below the greater trochanter of the femur, and often either stabs the inner side of the hip joint, causing damage to nearby nerves and blood vessels, causing unnecessary damage, or pierces through the vicinity of the lesser trochanter of the femur

In this way, it is difficult for the conventional guide needle to accurately open the nail channel, and it is also impossible to accurately place the intramedullary nail into the femoral medullary cavity.

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