Bone rehabilitation external fixing frame with stepless adjusting jig

Abstract

The invention discloses a bone rehabilitation external fixing frame with a stepless adjusting jig. The external fixing frame comprises telescopic fixing ring modules, detachable connecting rod mechanisms and stepless adjusting needle threading jigs, wherein the telescopic fixing ring modules are connected through the six detachable connecting rod mechanisms, and the stepless adjusting needle threading jigs are fixed on the telescopic fixing ring modules; and each telescopic fixing ring module comprises corner kits, linear inserts, fixing bolts and tightening nuts, and each stepless adjusting needle threading jig comprises an adjusting upright post, a steel needle sleeve, a fixing nut, an upper-lower locking bolt, a front-rear locking bolt and an adjusting slide block. According to the invention, the size of the fixing ring can be adjusted by adjusting the position of the nuts and removing connecting pieces, so that the applicability and the compatibility of the device are improved; andthe invention provides a design of a detachable electric push rod, and the design comprises the following steps: firstly, connecting a replacement connecting device to two ends of a linear push rod through bolts, keeping the positions of the two ends unchanged, then dismantling the electric push rod, and replacing the electric push rod with an alternative screw rod device.

Description

technical field [0001] The present invention relates to the field of orthopedic correction and rehabilitation, and more specifically, relates to an external fixator for bone rehabilitation with stepless adjustable clamps. Background technique [0002] During bone surgery, fixation devices are indispensable. Traditional fixation methods generally use internal fixation with steel plates, and now there are also external fixation treatment methods with less trauma. Commonly used external fixation devices are mainly Ilizarov external fixator and Taylor frame. The Ilizarov technique uses multiplanar thin Kirschner wires to penetrate the limb and bone tissue and connect to a ring fixator. Dr. Taylor improved the Ilizarov external fixation system by connecting six telescopic extension rods obliquely to the proximal and distal rings, and they can rotate freely at the connection point. As long as the length of one of the extension rods is adjusted, one ring will Change position rela...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that in the existing field of orthopedic rehabilitation, a series of fixed rings must be selected according to the patient’s condition. The size of the fixed rings is difficult to adjust and the traditional clamps cannot perfectly match the position of the needle. When the steel needle is nailed into the patient's bone, it is easy to miss the steel needle and need to be nailed again, causing secondary or even multiple injuries, which makes the operation difficult, high threshold, and brings great pain to the patient. , proposed a bone rehabilitation external fixator with stepless adjustable clamps. The size of the fixator can be adjusted by adjusting the position of the nut and removing the connector, which can realize fine-tuning fixation and needle-guiding, which can not only improve clinical fracture The accuracy and safety of the reset, and reduce the operating intensity of the clinician, greatly improving the success rate of the operation, and the length of the rod can be adjusted by driving the electric push rod, or the length can be adjusted by the screw. After the motor adjustment is completed Can also be easily disassembled

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