Built-in arc-shaped distraction osteogenesis device

A distraction osteogenic device, built-in technology, applied in the direction of fixator, external fixator, medical science, etc., can solve the problems of prolonging the treatment period and increasing the medical cost, so as to reduce the pain, reduce the number of operations, and reduce the cost. Effect

Active Publication Date: 2010-03-03
FOURTH MILITARY MEDICAL UNIVERSITY +1
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Problems solved by technology

This will prolong the treatment cycle, increase medical costs, and bri

Method used

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  • Built-in arc-shaped distraction osteogenesis device
  • Built-in arc-shaped distraction osteogenesis device

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 1 As shown, according to the curve requirements of the patient's mandibular bone formation direction, an arc-shaped curved inner garden column guide groove 2 is set, and the left fixed wing 1 and the right fixed wing 5 are fixedly set at both ends. The movable wing 3 fixedly connected with the frontmost roller 4 can be slidably connected with the inner cylindrical guide groove 2 between the left and right fixed wings 1 and 5 along the preset arc of the inner cylindrical guide groove 2 . The inner garden column guide groove 2 between the movable wing 3 and the force transmission screw 8 is filled with at least 8 or more rollers 4 that are closely fitted and slidably connected with it. Removable threaded sleeve 6 is threadedly connected with inner garden column guide groove 2 right-hand ends, and is threadedly connected with force transmission screw rod 8....

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Abstract

The invention relates to a medical distraction osteogenesis device, in particular a built-in arc-shaped distraction osteogenesis device which has the key technology that both ends of an internal cylindrical guide path bent in an arc way are fixedly provided with a left fixed wing and a right fixed wing; a movable wing fixedly connected with a roller at the leftmost end is matched with and connected with the internal cylindrical guide path in a slide way between the left fixed wing and the right fixed wing along the preset arc of the internal cylindrical guide path; and the internal cylindricalguide path is filled with a plurality of rollers closely matched and connected with the internal cylindrical guide path in a slide way. In a distraction osteogenesis operation, the invention can carry out distraction osteogenesis along any directions, enhances the efficiency of the operation, relieves pains of patients and reduces the cost of the operation.

Description

technical field [0001] The invention relates to a medical distraction osteogenesis device, in particular to a built-in arc-shaped distraction osteogenesis device. Background technique [0002] Distraction Osteogenesis (DO) is to apply a special traction device after osteotomy and slowly pull to form new bone in the osteotomy gap so as to achieve the purpose of bone elongation. Distraction osteogenesis is most commonly used to lengthen the jaw to treat micrognathia caused by various causes, and it can lengthen the jaw by 10-30mm. At present, the commercially available and clinically used distraction osteogenesis devices are all realized by the principle of helical force transmission. Due to the characteristics of the screw drive structure, it can only be distracted in a single direction, that is, linear distraction. The mandibular osteogenesis needs of patients are varied and vary from person to person. A considerable number of patients often need to change the direction of...

Claims

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Application Information

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IPC IPC(8): A61B17/56
CPCA61B17/663
Inventor 商洪涛何黎升刘彦普闫俊中周雁麓
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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