Auxiliary device and method for repositioning displaced joint disc
An auxiliary device and articular disc technology, which is applied in the fields of medical science, surgery, surgical instruments, etc., can solve the problems of unreliable long-term effect of joint disc reduction and fixation, limited metal anchoring nails, and insufficient comprehensiveness of the device, so as to facilitate collection and Effects of long-term follow-up observation, economic burden reduction, and cost reduction
Inactive Publication Date: 2019-01-15
HOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV
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Problems solved by technology
[0003] In the prior art, the anchor nail is made of metal, which will have more or less influence on the patient's subsequent CT or MRI examination.
In addition, the anchor nail itself is a foreign implant relative to the body. Although the material compatibility is very good, for some patients with greater psychological pressure, they often require the removal of the implant in the body, which limits the Application of Metal Anchors
With the advancement of materials, absorbable anchors have appeared clinically, but this material itself is gradually degraded and absorbed in the body, and the long-term effect on the reduction and fixation of the articular disc has not yet been verified.
At the same time, the existing devices for assisting surgery in the reduction operation of the articular disc are not comprehensive enough, and multiple medical staff are usually required to assist during the operation. In view of the above situation, there is a need for an auxiliary device and method for resetting the displaced articular disc. to solve the above problems
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[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0028] see Figure 1-Figure 8 , the present invention provides a technical solution: an auxiliary device for resetting a displaced articular disc, comprising a clip bar 1, a telescopic rod 2 and an auxiliary retractor mechanism 3, the right end of the clip bar 1 is fixed with a telescopic rod 2, and the telescopic rod 2 The bottom is provided with an auxiliary retractor mechanism 3 .
[0029] Auxiliary retraction mechanism 3 comprises retraction strip 31, movable sleeve 32, fixed sleeve 33, movable rod 34 and button 35, fixed sleeve 33 is fixed on telescopic rod 2 bottom, fixed sleeve 33 interior is provided with movable sleeve 32, movable sleeve The left end surface of the tube 32 is equipped with a retraction bar 31, the movable sleeve 32 is pr...
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The invention provides an auxiliary device and a method for repositioning a displaced joint disc. The device includes a clamp bar, Telescopic bar, retracting bar, movable casing, Retaining sleeve, movable lever and button, A telescopic rod is fix on that right end face of the clamping bar, A fix sleeve is fixed at that bottom of the telescopic rod, The fixing sleeve is internally provided with a movable sleeve, the left end surface of the movable sleeve is provided with a retracting strip, the movable lever is internally provided with a movable lever, and the right end surface of the movable lever is provided with a button. The design can retract and support the incision part, and solves the problem that the original auxiliary device is incomplete in the joint disc reduction operation. Theinvention has the advantages of less consumable materials, low cost, complete auxiliary functions and good operation effect.
Description
technical field [0001] The invention relates to an auxiliary device and method for resetting a displaced articular disc, belonging to the technical field of oral and maxillofacial surgery. Background technique [0002] At present, many patients with condyle fractures or articular disc diseases need to undergo reduction and anchoring of the articular disc. The commonly used clinical method is to fully free the ligament of the articular disc, so that the articular disc covers the cartilage surface above the condyle. In order to prevent the disc from being displaced again, two anchors need to be implanted on the surface of the condyle, and the sutures used to suture the disc are tied above the anchors. In this way, with the help of the antagonism of the anchor nails, the articular disc will not be displaced again, but will remain in the reset position. [0003] In the prior art, the anchor nail is made of metal, which will have more or less influence on the patient's subseque...
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IPC IPC(8): A61B17/02A61B17/04A61B17/56
CPCA61B17/02A61B17/0401A61B17/56
Inventor颜光启杨鸣良啜文钰张然
OwnerHOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV