Fixed-angle-rotation-center-parallel external fixator for malformation correction of shinbone
A technology of external fixator and rotation center, applied in the direction of external fixator, fixator, etc., can solve the problems of complex process, many branch chains, complex structure, etc., and achieve the effect of reducing complexity, reducing difficulty, and convenient adjustment
A technology of external fixator and rotation center, applied in the direction of external fixator, fixator, etc., can solve the problems of complex process, many branch chains, complex structure, etc., and achieve the effect of reducing complexity, reducing difficulty, and convenient adjustment
CN112120772APending Publication Date: 2020-12-25BEIJING UNIV OF TECH
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[0021] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structures of these implementations All equivalent transformations or substitutions are within the protection scope of the present invention.
[0022] ginseng Figure 1 to Figure 7 as shown, figure 1 It is an overall view of a fixed-angle rotation center parallel external fixator for tibial deformity correction of the present invention, figure 2 is the proximal ring structure diagram, image 3 is the overall view of the posterior branch, Figure 4 It is the structure diagram and section diagram of the short branched chain, Figure 5 is a C-shaped ring structure diagram, Figure 6 is the sidebar structure diagram, Figure 7 It is the structure diagram and section diagram of the f...
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The invention relates to a fixed-angle-rotation-center-parallel external fixator for malformation correction of a shinbone. The external fixator comprises a proximal cycle, a distal cycle, a front branched chain and a rear branched chain, wherein the rear branched chain is composed of two side bars, a C-shaped ring and a short branched chain. The upper part of the short branched chain is connectedwith the C-shaped ring to form a first revolving pair, and the C-shaped ring is connected with the two side bars to form a second revolving pair. During the malformation correction, axes of rotationof the first and second revolving pairs are converged to an angle center of rotation of a malformed bone, and then, a center of rotation of the external fixator and the angle center of rotation of themalformed bone can be superposed, so that doctors can conveniently observe clinical conditions of the current malformation correction in real time, and radiation intake resulting from X-ray film photographing is reduced. According to the external fixator, rotating deformity of two degrees of freedom of the malformed bone can be corrected, shortened malformation along a bone axis direction can also be corrected, and then, the malformed bone can be subjected to two-rotation-one-moving spatial 3-degree-of-freedom malformation correction.
Description
technical field [0001] The invention relates to an orthopedic parallel external fixator, in particular to a fixed-angle rotation center parallel external fixator for tibial deformity correction. Background technique [0002] External fixator is widely used in orthopedic surgery based on distraction osteogenesis technology. It is a minimally invasive tool with small trauma and wide indications. It provides stable and elastic fixation in the process of limb fracture reduction and deformity correction. Currently, the most commonly used external fixators for the correction of tibial deformities are Iraqi external fixators and Taylor external fixators. Among them, the Iraqi external fixator has many components, and each correction requires clinicians to configure corresponding configurations according to different indications. Clinicians need to have rich clinical experience. In practical applications, there are many components and the structure is more complicated. The Taylor e...
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Patent Timeline
25 Dec 2020
Publication
CN112120772A
- IPC
- A61B17/66
- CPC
- A61B17/66; A61B17/645
- Inventors
- ζει; ζε½ι