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Bone orthodontic electronic prescription construction method based on six-axis external fixation support

An electronic prescription and construction method technology, applied in the field of skeletal deformity correction, can solve the problems of dependence, treatment redundancy, time-consuming, etc., and achieve the effect of correcting deformity, weakening influence, and reducing measurement

Pending Publication Date: 2022-05-13
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When deformity correction is performed clinically, the choice of treatment algorithm is often troubled by the correction mode, because it relies heavily on the diagnosis of the disease type, which is very time-consuming
At the same time, a variety of complex correction modes will also cause redundant treatment, and excessive manual diagnosis and manual measurement will affect the treatment accuracy

Method used

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  • Bone orthodontic electronic prescription construction method based on six-axis external fixation support
  • Bone orthodontic electronic prescription construction method based on six-axis external fixation support
  • Bone orthodontic electronic prescription construction method based on six-axis external fixation support

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Experimental program
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Effect test

Embodiment 1

[0135] Embodiment 1: The present invention is a method for constructing an electronic prescription for bone orthodontics based on a six-axis external fixator. It is characterized in that it is composed of two parts, including a measurement priority algorithm and a treatment priority algorithm.

[0136] The measurement priority algorithm, whose main parameters include bone deformity parameters, proximal ring displacement installation parameters, and distal ring displacement installation parameters, firstly calculate the pose relationship matrix of the distal and proximal bones through the bone deformity parameters, and then calculate The pose relationship matrix of the proximal bone and the proximal ring is calculated by shifting the installation parameters, and the pose relationship matrix of the distal bone and the distal ring is calculated by the displacement installation parameters of the distal ring. Calculate the vector relationship between the proximal ring coordinate sy...

Embodiment 2

[0138] Embodiment 2: A method for constructing an electronic orthodontic prescription based on a six-axis external fixator disclosed in the present invention consists of two parts: a measurement priority algorithm and a treatment priority algorithm. According to the actual clinical needs, the two provide skeletal deformity correction solutions under different usage modes.

[0139] The six-axis external fixation bracket uses a parallel mechanism as the main body. By adjusting the length of the six screw rods connecting the far and near fixing rings, the relative pose between the bone segments connected to the bracket can be changed, and the multi-plane including displacement, Simultaneous correction of deformities such as angulation and rotation.

[0140] The measurement priority algorithm measures the bone deformity parameters, the proximal ring displacement installation parameters and the distal ring displacement installation parameters, and then calculates the pose relations...

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Abstract

The invention discloses a bone orthodontic electronic prescription construction method based on a six-axis external fixation support, and the method comprises the following steps: collecting a first bone malformation parameter of a broken bone, a first displacement installation parameter of a near-end ring, and a second displacement installation parameter of a far-end ring, and obtaining a first pose relation between a near-end bone segment and a far-end bone segment; the first length of the screw is obtained according to the second pose relation between the near-end bone section and the near-end ring and the third pose relation between the far-end bone section and the near-end ring according to the inverse kinematics algorithm; target bone parameters after broken bone correction are collected, a plurality of continuous correction states and the second length of each screw corresponding to each correction state are obtained, and an electronic prescription used for conducting bone malformation treatment on the broken bone is constructed according to the malformation correction speed and the second length; according to the invention, the influence of manual measurement errors on prescription precision and deformity correction effect is weakened, and doctors can be effectively helped to correct the prescription in time in the treatment process of patients so as to avoid possible treatment risks.

Description

[0001] The invention relates to the technical field of skeletal deformity correction, in particular to a method for constructing an electronic prescription for skeletal orthodontics based on a six-axis external fixation bracket. Background technique [0002] As a typical advanced annular external fixator, the six-axis external fixator has been widely used by orthopedic surgeons around the world since the Taylor Brothers designed it in 1994. The six-axis external fixation bracket is a modified Ilizarov frame, which consists of two rings connected by six adjustable telescopic screws at the universal joint. This enables the external fixator to simultaneously correct complex multidimensional deformities like a hexapod. Physicians can precisely control the correction process with computer assistance. [0003] The treatment algorithm is the planning of the treatment process based on the six-axis external fixator. At present, there are few studies on the electronic prescription and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/20G16H20/40A61B34/10G06T7/00
CPCG16H50/20G16H20/40A61B34/10G06T7/0012G06T2207/10116G06T2207/30008
Inventor 张氢葛韵斐冯文宗孙远韬李雅华邱小红张海天施俊杰杨杰王俊雄王熙遴
Owner TONGJI UNIV