Unilateral two-arm adjustable two-way dual-power bone lengthening pressurized locking external fixator

An external fixator and dual-power technology, which is applied in the field of bone extension external fixator, unilateral double-arm adjustable bidirectional dual-power bone extension compression locking external fixator, can solve the problems of large space occupation, difficult needle penetration, and physiological problems. Anatomical inconsistencies and other issues, to achieve the effect of small space, easy care, and easy to carry
CN104970871AActive Publication Date: 2015-10-14哈尔滨杰瑞斯医疗科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
哈尔滨杰瑞斯医疗科技有限公司
Publication Date
2015-10-14

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Abstract

The invention provides a unilateral two-arm adjustable two-way dual-power bone lengthening pressurized locking external fixator and belongs to the technical field of bone treatment instruments. The external fixator aims at solving the problem of limb shortening caused by lower limb thighbone large-segment splintered fracture long treatment concurrent large-segment bone defects. The external fixator comprises two or three or four steel nail splint linked clamps arranged between a main arm threaded rod and an auxiliary arm threaded rod side by side. The positions of upper steel nail splints and lower steel nail splints of the steel nail splint linked clamps on vertical adjustment threaded rods are adjusted through nuts. Upper end holes of connecting plates are connected with the auxiliary arm threaded rod, the positions of the connecting plates on the auxiliary arm threaded rod are adjusted through nuts on the two sides, lower end holes of the connecting plates are connected with the vertical adjustment threaded rods, chutes are formed in the main arm threaded rod, and convex plates are in sliding fit with the chutes. A power nut is arranged between every two adjacent convex plates. The positions of the convex plates on the main arm threaded rod are adjusted through the power nuts. The convex plates are fixed to the main arm threaded rod through screws after the positions are adjusted. The external fixator is mainly used for bone injury treatment.
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Description

technical field

[0001] The present invention relates to a bone lengthening external fixator, in particular to a single-sided double-arm adjustable bidirectional dual-power bone lengthening pressurized locking external fixator, which is used for the treatment of bone defects, bone lengthening and deformity correction of lower limbs. It belongs to the technical field of bone therapy equipment. Background technique

[0002] At present, there is no unilateral double-arm adjustable dual-power two-way femoral extension compression locking external fixator for the treatment of large comminuted fractures of the femur, long-term treatment, bone fracture bone resorption, and large bone defects. Internal fixation or existing external fixation bone extension (bone transfer) brackets are not applicable, and some have been cured for as long as 8 years, causing pain to the patient, and some require amputation. In order to solve this problem, a single-arm external fixation appears on the ma...

Claims

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