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A kind of retractor and retractor system

A technology of stretching and rotating shafts, which is applied in the field of stretchers and stretcher systems, and can solve problems such as easy infection, stretcher falling off, and affecting patients' normal life

Active Publication Date: 2020-12-25
MICROPORT SINICA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only affects the normal life of the patient, but also easily causes infection, and even the retractor falls off.

Method used

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  • A kind of retractor and retractor system
  • A kind of retractor and retractor system
  • A kind of retractor and retractor system

Examples

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Embodiment Construction

[0087] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, ...

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Abstract

The invention relates to a distraction device and a distraction device system, the distraction device is used for implementing distraction osteogenesis, and the distraction device comprises a shell comprising an accommodating cavity; a rotating shaft extending along the axial direction of the shell and rotatably accommodated in the accommodating cavity; a moving part comprising a first end and a second end which are opposite to each other, wherein the first end is contained in the containing cavity and arranged on the rotating shaft in a sleeving mode, and the second end is located outside theshell and used for being connected with human bones or tissue; and a magnetic rotor arranged on the rotating shaft and used for driving the rotating shaft to rotate around the central axis of the rotating shaft under the action of a first external magnetic field, so that the moving part moves relative to the shell along the axial direction of the shell. The distraction device can be integrally implanted into the body of a patient, the influence on the daily life of the patient is reduced, and the possibility of infection and falling is reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a stretcher and a stretcher system. Background technique [0002] As children grow and develop, there are various types of hypoplasia, bony defects, or bone loss in the upper and lower jaws, which lead to facial deformities. In this regard, distraction osteogenesis (DO) is usually used for correction. The specific method is: the underdeveloped bone is cut open through surgery, and distractors are placed on both sides of the osteotomy line. The extension of the distractor The end is exposed to the outside of the body, so that artificial force can be applied later, so that the distractor can be extended, the regeneration potential of the body tissue can be stimulated, and new bone can be formed in the gap. [0003] The correction period includes a delay period, a stretch period and a fixation period. Among them, the extended period is about 5-7 days, during wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/56
CPCA61B17/56A61B2017/564
Inventor 张立争戴雯婕张兵陈政伟张劼常兆华罗七一
Owner MICROPORT SINICA CO LTD
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