Orthopedic intramedullary ultrasonic locking nail aiming aid

Abstract

The invention relates to the field of medical devices, in particular to an orthopedic intramedullary ultrasonic locking nail aiming aid. The orthopedic intramedullary ultrasonic locking nail aiming aid comprises a first adjusting part and a second adjusting part, wherein the first adjusting part comprises a fixing sleeve, the fixing sleeve is provided with a semicircular arc-shaped strip hole, thefixing sleeve is internally provided with a rotating shaft, the end of the rotating shaft is connected with a first micro-rotary motor, the portion, corresponding to the semicircular arc-shaped striphole, on the rotating shaft is provided with a positioning block, the positioning block penetrates through the arc-shaped strip hole and is connected with a rotating sleeve slidably arranged at the outer side face of the fixing sleeve, the rotating sleeve is fixedly provided with a transmission rod perpendicular to the axis of the rotating shaft, the transmission rod is fixedly provided with thesecond adjusting part, the end, away from the second adjusting part, of the positioning rod is square, the square end of the positioning rod is provided with a locking nail positioning sleeve, and thelocking nail positioning sleeve is detachably connected with an ultrasonic aiming device. The orthopedic intramedullary ultrasonic locking nail aiming aid firstly performs coarse tuning and then performs fine tuning, which can achieve accurate aiming, and the operation errors can be reduced through automatic control.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an orthopedic intramedullary ultrasonic locking nail aiming auxiliary device. Background technique [0002] Intramedullary nails are widely used in long tubular bone joints, and intramedullary nails with locking nails can fix bone tissue and intramedullary nails together so that bone tissue can maintain alignment. This surgical method has the advantages of small trauma, The advantages of firm fixation, high fracture healing rate and low infection rate. At present, the method of implanting the intramedullary nail into the long tubular bone for osseointegration is to first connect the intramedullary nail with the U-shaped handle and the positioning rod to form the intramedullary nail fixing device, and then adjust the positioning through hole and the medullary positioning hole at the distal end of the positioning rod. The keyhole at the distal end of the inner nail is in a straight ...

AI Technical Summary

Problems solved by technology

[0006] However, although the above-mentioned ultrasonic positioning device can realize multi-angle positioning, the adjustment method is single, and the adjustment of the general angle requires manual adjustment, and the error of manual adjustment is relatively large, which may easily lead to positioning failure, thereby affecting the placement of the locking nail, or even failing to insert the locking pin. nail

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