Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions

A fixation device and proximal technology, applied in the field of medical devices, can solve the problems of metal particles affecting rigidity, increasing infection, blocking X-ray penetration, etc., to reduce the occurrence of complications, avoid local stress concentration, and increase the fixation effect Effect

Inactive Publication Date: 2016-10-26
朱文川
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Metal internal fixation has the following disadvantages: (1) Electrolytic corrosion in the body, and some metal particles are produced to affect the surrounding normal tissue; (2) Too rigid, easy to produce stress shielding, and easy to fracture again after the internal fixation is removed; (3) Blocking X-ray penetration interferes with nuclear magnetic resonance imag

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  • Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions
  • Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions
  • Degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions

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[0020] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0021] Such as Figure A1 to Figure A3 As shown, the present invention is a biodegradable and visualizable proximal tibia posterior external locking internal fixation device, comprising: an integrally formed top 1, waist 2 and body 3, the internal fixation device and the proximal tibia posterior external contact surface The top 1 is provided with a number of first locking screw holes 4 for fixing the top 1 behind the proximal tibia, and the body 3 is provided with a number of second locking screw holes 6. The direction of a locking screw hole 4 is at an angle of 75°-100° with the top plane of the internal fixation device. After the screw is implanted, the screw can avo...

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Abstract

The invention discloses a degradable proximal tibia posterior-lateral locking internal fixation apparatus with development functions. The degradable proximal tibia posterior-lateral locking internal fixation apparatus is made of degradable biological materials with development functions. The degradable biological materials comprise biodegradable materials and developers. The degradable proximal tibia posterior-lateral locking internal fixation apparatus comprises a top, a waist and a body which are integrally formed. The degradable proximal tibia posterior-lateral locking internal fixation apparatus is matched with space geometric shapes of proximal tibia posterior-lateral contact surfaces. A plurality of first locking screw holes are formed in the top, a plurality of second locking screw holes are formed in the body, and angles of 75-100 degrees are formed by the first locking screw holes in certain directions and a plane of the top of the degradable proximal tibia posterior-lateral locking internal fixation apparatus, so that screws can avoid proximal tibia posterior-lateral articular surfaces after being implanted. The degradable proximal tibia posterior-lateral locking internal fixation apparatus has the advantages that the degradable proximal tibia posterior-lateral locking internal fixation apparatus can excellently cling to bone surfaces, accordingly, the problem of possible local stress concentration due to that fact that an existing internal fixation apparatus poorly clings to bone surfaces can be solved, fixation effects of the degradable proximal tibia posterior-lateral locking internal fixation apparatus can be effectively improved, and the degradable proximal tibia posterior-lateral locking internal fixation apparatus is favorable for fixing fracture bone blocks; the degradable proximal tibia posterior-lateral locking internal fixation apparatus does not need to be taken out by means of second surgery, internal fixation apparatus absorption procedures can be dynamically monitored, and accordingly the degradable proximal tibia posterior-lateral locking internal fixation apparatus is favorable for guiding functional exercise.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a degradable and developable rear lateral locking internal fixation device for the proximal end of the tibia. Background technique [0002] With the improvement of socio-economic level and the rapid development of transportation, tibial plateau fractures caused by high-energy injuries are increasing day by day. Clinically, the treatment of such load-bearing intra-articular fractures is relatively complicated, among which the treatment of posterolateral fractures of the proximal end of the tibia is particularly difficult, and it is prone to fracture redisplacement, nonunion, internal fixation failure, and joint function due to improper selection of fracture fixation methods. Movement disorders and other complications. Due to the irregular anatomical contour behind the platform and the large curvature of the transition zone of the metaphysis, there is no intern...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61L31/14A61L31/18
CPCA61B17/80A61B17/8004A61B17/8057A61B17/8061A61B17/808A61B2017/00831A61L31/148A61L31/18
Inventor 朱文川
Owner 朱文川
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