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T-shaped/inclined T-shaped degradable pure magnesium distal radius bone plate

A technology of distal radius bone plate, which is applied in the field of T-shaped/oblique T-shaped degradable pure magnesium distal radius bone plate, can solve the problems of low hardness of pure magnesium material and cannot prepare bone plate, and achieve good holding and fixation, Low cost, the effect of increasing mechanical strength

Active Publication Date: 2017-12-12
赵德伟 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention solves the problem that the pure magnesium material cannot be used for clinical bone plate due to its low hardness. At present, there is no pure magnesium material with the structure of the present invention, especially the distal radius bone plate with a purity of more than 99.99%.

Method used

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  • T-shaped/inclined T-shaped degradable pure magnesium distal radius bone plate
  • T-shaped/inclined T-shaped degradable pure magnesium distal radius bone plate
  • T-shaped/inclined T-shaped degradable pure magnesium distal radius bone plate

Examples

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Embodiment 1

[0036] Such as Figure 1~2 As shown, a T-shaped degradable pure magnesium distal radius bone plate includes a transverse part and a longitudinal part, the transverse part is provided with 4 fixing screw holes, and the longitudinal part is provided with 6 fixing screw holes. One of the included angles between the central axis of the transverse part and the central axis of the longitudinal part is 90°, and the upper surface of the longitudinal part is provided with rib protrusions, wherein the upper surface of the longitudinal part adjacent to the transverse part There is no reinforcing rib protrusion on the top, the fixing screw hole of the longitudinal part is located on the inner side of the reinforcing rib protrusion, and a pair of side wings protruding outward are respectively fixedly connected to the two sides of the longitudinal part, and the side wings A screw fixing hole is respectively provided on the top, and the transverse part is upturned 12° relative to the longitu...

Embodiment 2

[0041] In the T-shaped degradable pure magnesium distal radius osteosynthesis plate described in the above-mentioned embodiment 1, the transverse part is upturned by 15° relative to the longitudinal part, and has a downward curved arc-shaped structure, and the transverse part The length ratio of the section and the longitudinal section is 1:2.5. The screw fixing hole is reversed to the lower surface of the longitudinal part, and its chamfering angle is 12°, and the height of the rib protrusion is 1 / 2 of the thickness of the longitudinal part.

Embodiment 3

[0043] A T-shaped degradable pure magnesium distal radius bone plate, comprising a transverse part and a longitudinal part, the transverse part is respectively provided with fixing screw holes, the central axis of the transverse part and the central axis of the longitudinal part One of the included angles is 90°, the upper surface of the longitudinal part is provided with reinforcing rib protrusions, wherein the upper surface of the longitudinal part adjacent to the transverse part is not provided with reinforcing rib protrusions, the fixing screw of the longitudinal part The hole is located on the inner side of the protrusion of the reinforcing rib, and a pair of side wings protruding outward are respectively fixedly connected to both sides of the longitudinal part. The side wings are semicircular arc-shaped plates bent toward the lower surface of the longitudinal part. Symmetrically distributed on both sides of the longitudinal part, there is a screw fixing hole on the flanks...

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Abstract

The invention discloses a degradable pure magnesium distal radius bone plate which comprises a transverse portion and a longitudinal portion. Reinforcing rib projections are arranged on the upper surface of the longitudinal portion, fixing screw holes formed in the longitudinal portion are positioned inside the reinforcing rib projections, two sides of the longitudinal portion are fixedly connected with side wings projecting outwards, screw fixing holes are formed in the side wings, the transverse portion is warped upwards by 10-15 degrees relative to the longitudinal portion and is of a downward bent circular arc structure, and the length ratio of the transverse portion to the longitudinal portion is 1:(2-3). The bone plate is prepared from pure magnesium with purity of 99.99% or more, is simple in structure and good in fixing effect, and has excellent mechanical strength, bone induction functions and degradability.

Description

technical field [0001] The invention relates to a medical internal fixation device, in particular to a T-shaped / oblique T-shaped degradable pure magnesium distal radius bone plate. Background technique [0002] Fracture of the distal radius is a multiple fracture, accounting for about 1 / 6 of all fractures in the whole body, and it is also the most common fracture of the upper extremity. At present, the method of treating distal radius fractures is still mostly traditional manipulative reduction and plaster external fixation. This method can obtain a relatively satisfactory effect on the simple extra-articular fractures of the distal radius, but for unstable comminuted fractures of the distal radius, especially intra-articular fractures, it is difficult to achieve a good alignment of the articular surface with simple plaster external fixation. Position and stable fixation, resulting in bony joints of the radiocarpal and radioulnar joints. With the improvement of internal fi...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61L27/04A61L27/58A61L27/54
CPCA61L27/047A61L27/54A61L27/58A61B17/8061A61B17/808A61L2300/412A61L2300/604A61L2430/02A61L2300/102
Inventor 赵德伟王本杰谢辉刘保一马志杰王威
Owner 赵德伟
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