Novel reset fixing frame used in orthopedic department

Abstract

The invention provides a novel reset fixing frame used in the orthopedic department. The novel reset fixing frame is provided with two fixing under plates (1) and (3) and six supporting rods (2), wherein the two ends of each supporting rod are hinged to the two fixing under plates (1) and (3) respectively, and the effective length of each supporting rod (2) is adjustable. Each supporting rod (2) and the two fixing under plates (1) and (3) are connected at a certain angle. Each supporting rod (2) comprises a sleeve (4) and a sliding rod (5) inserted in the sleeve (4), one end of the sleeve (4) is provided with an outer thread and is matched with a pressure cap (7) with an inner thread so that spherical hinges (5) can be installed onto the end portion of the sleeve (4), each spherical hinge (5) is connected with a locking screw (6), each locking screw (6) comprises an independent screw tail and a screw rod, the spherical hinges (5) are connected to the fixing under plate (1) and (3) through the locking screws, and accordingly the sleeve (4) is hinged to the fixing under plate (1) and (3).

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to a novel orthopedic reduction and fixation frame. Background technique [0002] In recent years, orthopedic fixation devices have developed rapidly, and various fracture orthopedic reduction devices have appeared clinically. For example, the universally adjustable fracture external fixer designed by the inventor can adjust the position and direction of the fixing nail hole arbitrarily, so that the distance and direction of the drilled hole in the operation are no longer strictly limited by the fixer, thereby reducing the difficulty of operation , but the translation and rotation of the device must be operated separately, and the accuracy is low. Other three-dimensional external fixators, such as the Irizanov frame and the Basini frame, etc., also cannot simultaneously satisfy all movements such as translation and rotation required for fracture reduction. Paten...

AI Technical Summary

Problems solved by technology

For example, the universally adjustable fracture external fixer designed by the inventor can adjust the position and direction of the fixing nail hole arbitrarily, so that the distance and direction of the drilled hole in the operation are no longer strictly limited by the fixer, thereby reducing the difficulty of operation , but the translation and rotation of the device must be operated separately, and the accuracy is low

Other three-dimensional external fixators, such as the Irizanov frame and the Basini frame, etc., also cannot simultaneously satisfy all movements such as translation and rotation required for fracture reduction.

Patent No. ZL96193657.6 is a three-dimensional fixation frame that is clinically used Taylor's frame to solve the above problems. It can perform translation and angle adjustment at the same time only by changing the effective lengths of six struts, but its struts are all The threaded connection structure, that is, the effective length is adjusted by the relative rotation of the screw nut. During the operation, X-ray measurement of the deformed limb is required first, and the adjustment position of each rod is calculated by computer according to the movement value of the broken bone end. Although the accuracy is high, the operation is cumbersome. , the high cost of use limits its popularization and application

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