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A method for determining the trajectory of condyle motion

A technology for determining methods and motion trajectories, applied in medical science, dentistry, etc., can solve problems such as poor practicability and failure to consider individual patient differences, and achieve the effect of precise trajectory curves

Active Publication Date: 2022-01-21
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The original method did not consider the individual differences of patients, so the practicability is poor

Method used

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  • A method for determining the trajectory of condyle motion
  • A method for determining the trajectory of condyle motion
  • A method for determining the trajectory of condyle motion

Examples

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Embodiment Construction

[0034] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0035] This embodiment discloses a method for determining the trajectory of the condyle. The transmitter transmits the detection signal and the receiver receives the detection signal to measure the position. The specific method is as follows: figure 1 shown, including the following steps:

[0036] Step S1. Coordinate definition: establish two sets of coordinate systems for trajectory measurement, including the launch coordinate system with the emitter as the origin and the front, top, and right of the emitter as the three-axis directions; the follow-up point with the jaw movement Be the origin, take the front, top and right of the receiver fixed on the...

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Abstract

The invention relates to a method for determining the trajectory of condyle motion, which includes: establishing a coordinate system: establishing a transmitting coordinate system and a receiving coordinate system for trajectory measurement; static measurement: measuring the left and right condyles and following them in the transmitting coordinate system Static position of the point, calculate the position difference between the left and right condyles and the follow-up point; perform coordinate transformation to obtain the position difference between the left and right condyles and the follow-up point in the receiving coordinate system; dynamic measurement: measure following the movement of the mandible A series of pose data of the follow-up points; according to the pose data and the position difference between the left and right condyles and the follow-up points in the receiving coordinate system, the dynamic trajectory of the left and right condyles is calculated. The method of the invention can determine the movement track of the condyle, and does not depend on the equilateral triangle and the included angle between the triangle and the occlusal surface under hypothetical conditions, and has the advantages of individuality and practicability.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a method for determining a condyle motion track. Background technique [0002] In the field of prosthodontics, on the model Frame is an indispensable step in the diagnosis and treatment process, through The simulation of the frame can ensure the coordination of form and function after the restoration made on the plaster model is brought into the mouth as much as possible. while using In order to obtain the simulation results with as little error as possible in the actual movement of the patient's oromandibular system, the positional relationship between the maxillary dentition and the mandibular joint can be recorded through facebow transfer. [0003] In the process of using the facebow, in order to obtain the condyle guide slope and the incisor guide slope, the patient needs to perform various movements of the mandible. First, the movement trajectory ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C19/05A61C19/04
CPCA61C19/052A61C19/04
Inventor 曹清华许振丰徐玉峰云峰
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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