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Prosthesis fixing structure for mandible repair and three-dimensional model design method

A technology of fixing structure and three-dimensional model, applied in the direction of fixator, internal bone synthesis, outer plate, etc., can solve problems such as falling off, loosening of titanium plate, operation failure, etc., to reduce the difference in elastic modulus, improve facial features, and improve fixation. effect of effect

Pending Publication Date: 2021-08-31
SHENZHEN EXCELLENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the restoration is fixed with a titanium plate, the titanium plate is directly attached to the outer surface of the mandibular residual bone and fixed by screws. Due to the elasticity of the titanium plate and human bone tissue The modulus has a large difference, and this fixation method is prone to loosening, displacement, falling off or breaking of the titanium plate at the initial stage of prosthetic implantation, resulting in surgical failure

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  • Prosthesis fixing structure for mandible repair and three-dimensional model design method
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  • Prosthesis fixing structure for mandible repair and three-dimensional model design method

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[0035] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0036] figure 1 It is a schematic structural diagram of the fixation structure of the prosthetic body for mandible repair in this embodiment, figure 2 It is a structural schematic diagram of the prosthesis fixing structure for mandibular bone repair provided in this embodiment without screw installation holes. Such as figure 1 an...

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Abstract

The invention relates to the technical field of mandible defect repair, and discloses a prosthesis fixing structure for mandible repair and a three-dimensional model design method. The prosthesis fixing structure for mandible repair comprises a first fixing piece and a second fixing piece; the first fixing piece comprises two connecting parts, the connecting parts are located at the two ends of the first fixing piece, and screw mounting holes are formed in the connecting parts in a penetrating mode; and the second fixing piece is of a porous structure, the second fixing piece is arranged between the connecting part and the surface of the mandible, the second fixing piece and the first fixing piece are integrally formed, and avoiding holes which are in one-to-one correspondence with the screw mounting holes and are coaxial are formed in the second fixing piece. According to the invention, the second fixing piece with the porous structure is arranged between the connecting parts of the first fixing piece and the mandible, so that the elastic modulus difference between the prosthesis fixing structure and the mandible is reduced, and the ingrowth of a mandible binding face bone is facilitated, the problem that a titanium plate is loosened and displaced in the initial stage of prosthesis implantation and further operation fails due to direct attachment and fixation of the titanium plate and the outer surface of the mandible is solved, and the effect of improving facial features of a patient is achieved.

Description

technical field [0001] The invention relates to the technical field of mandibular defect repair, in particular to a prosthesis fixing structure for mandibular repair and a three-dimensional model design method. Background technique [0002] The human mandible, as the lower 1 / 3 bony support of the face, is the main support structure of the face and the only movable bone in the face. It is the key to maintaining the shape of the face and maintaining chewing and other functions. At present, mandibular defects are relatively common in craniofacial defects. Clinically, human mandibular defects will have a great impact on functional actions such as mastication and facial appearance. Reconstructing the physiological function and anatomical shape of the defective mandible is a challenging topic in this field. [0003] The prosthesis fixation structure for mandibular repair refers to the structure that can help patients reconstruct the appearance, restore occlusal function, and conn...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/8071A61B17/8004
Inventor 尹宇
Owner SHENZHEN EXCELLENT TECH
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