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Jawbone tractor

A retractor and jawbone technology, applied in fractures, medical science, surgery, etc., can solve problems such as being vulnerable to accidental collisions, inconvenient to use, and unsightly

Inactive Publication Date: 2007-05-16
沈国成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned mandibular distractor has the advantages of simple structure and convenient fixing and adjustment, but the adjusting rod in the mandibular distractor is relatively long, and the adjusting part of the adjusting rod on it is only arranged on one side of the mandibular distractor, so it only It is suitable for adjusting the relative length in one direction. The adjustment direction should be opposite to the direction of the gap formed by the jaws to facilitate adjustment. Therefore, there is only one installation method, which is quite inconvenient to use.
Another point is that the above-mentioned jaw retractor is in a straight shape, exposed on the cheek during installation, and is easily subject to accidental collision, resulting in interruption of treatment, causing pain to the patient, and the exposure is not beautiful, seriously affecting the normal life of the patient

Method used

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] A jaw distractor as shown in Figures 1-2, includes an adjustment rod 1 and a movable traction frame 2, the adjustment rod 1 is in the shape of a strip with a certain thickness, and the adjustment rod 1 is shaped to match the shape of the human jaw The arc shape makes the lower surface of the adjustment rod conform to the jawbone. Due to individual differences, we can customize the arc-shaped adjustment rod 1 with different curved arcs according to different patients, so as to match the shape of the jawbone of each patient. For the purpose, the entire upper surface of the adjustment rod 1 is provided with a row of helical teeth 11 with the same inclination direction, so the shape of the adjustment rod 1 is similar to the shape of the rack. We are still adjusting the upper and lower ends of the adjustment rod 1 Each is provided with a fix...

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Abstract

The invention relates to a jaw drawer, which comprises an adjusting rod (1) and a movable drawing support (2), wherein the upper surface of rod (1) is arranged with incline teeth (11); the upper and lower ends of rod (1) are arranged with fixed positioning plates (3); the movable drawing support (2) sheathes the rod (1) to slide along it; the support (2) is arranged with movable positioning plate (221); one screw (4) is rotationally through the support (2); the screw (4) is limited on the support (2) to mesh the incline teeth (11); the adjusting rod (1) is in arc shape to match the jaw shape. The invention has simple structure and small volume.

Description

technical field [0001] The invention belongs to the technical field of medical instruments used in oral and maxillofacial surgery and plastic surgery, and in particular relates to a jaw retractor. Background technique [0002] Mandibular retractors are widely used in oral and maxillofacial surgery and plastic surgery. The technical principle of the retractor can be summarized as follows: After the mandible is completely or partially cut off, the broken ends of the mandible are gradually stretched by external force to form The mandible can be filled with the traction force to induce the osteogenic ability of the jaw bone to continuously form new bone to fill the gap, so as to achieve the purpose of lengthening the mandible. [0003] There are also many patents related to jaw retractors, such as a Chinese utility model patent "a jaw retractor extender" with a patent number of ZL95200175.6 (announcement number CN2205709Y), which discloses a structure such as a jaw retractor. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/24A61B17/56A61F5/04
Inventor 沈国成方葵川沈国芳王兴
Owner 沈国成
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