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Pelvis model-based parturition axis construction method

A pelvic model and construction method technology, applied in 3D modeling, medical simulation, image data processing, etc., can solve the problems of inconvenience, complex production axis, difficult popularization and application, and achieve the effect of high accuracy and simple operation

Pending Publication Date: 2021-01-26
GUANGZHOU SUNRAY MEDICAL APP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, this method needs to obtain the production axis corresponding to the pelvis of the test subject. Using such complicated and cumbersome production axis construction steps will inevitably bring a lot of inconvenience to the actual operation, and it will also make it difficult to be widely used in clinical practice.

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  • Pelvis model-based parturition axis construction method

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Experimental program
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Embodiment 1

[0037] A method for constructing a production axis based on a pelvic model, comprising the following steps:

[0038] S1: Establish a standard pelvis model based on the three-dimensional measurement data of several female pelvises, and construct a three-dimensional coordinate system of the standard three-dimensional model of the pelvis;

[0039] S2: Perform three-dimensional measurement of the pelvis of the subject to obtain the three-dimensional coordinates of the upper edge of the pubic symphysis, the lower edge of the pubic symphysis, and the lumbosacral reference point;

[0040] S3: Register the three-dimensional coordinates of the upper edge of the pubic symphysis, the lower edge of the pubic symphysis, and the reference point of the lumbosacral region of the subject's pelvis acquired in S2 with the three-dimensional coordinate system of the standard three-dimensional pelvis model to obtain the three-dimensional coordinate system of the subject's pelvis The three-dimension...

Embodiment 2

[0047] A method for constructing a production axis based on a pelvic model, comprising the following steps:

[0048] S1: Establish a standard pelvis model based on the three-dimensional measurement data of several female pelvises, and construct a three-dimensional coordinate system of the standard three-dimensional model of the pelvis;

[0049] S2: Perform three-dimensional measurement of the pelvis of the subject to obtain the three-dimensional coordinates of the upper edge of the pubic symphysis, the lower edge of the pubic symphysis, and the lumbosacral reference point;

[0050] S3: Register the three-dimensional coordinates of the upper edge of the pubic symphysis, the lower edge of the pubic symphysis, and the reference point of the lumbosacral region of the subject's pelvis acquired in S2 with the three-dimensional coordinate system of the standard three-dimensional pelvis model to obtain the three-dimensional coordinate system of the subject's pelvis The three-dimension...

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Abstract

The invention discloses a pelvis model-based parturition axis construction method, which comprises the following steps of: obtaining three-dimensional coordinates of a pubic symphysis upper edge, a pubic symphysis lower edge and a lumbosacral datum point of a pelvis of a to-be-tested person, and registering the three-dimensional coordinates with a three-dimensional coordinate system of a standardpelvis three-dimensional model to effectively and quickly obtain the three-dimensional coordinate system; obtaining three-dimensional coordinates of a pelvis entrance plane center point, a middle pelvis plane center point and a pelvis exit plane center point; and converting the three-dimensional coordinates of the pubic symphysis upper edge, the pubic symphysis lower edge, the pelvis inlet plane center point, the middle pelvis plane center point and the pelvis outlet plane center point into the coordinates of the three-dimensional coordinates on the ultrasonic image to obtain the coordinates of the production axis corresponding to the three-dimensional coordinate system of the pelvis three-dimensional model of the to-be-tested person on the ultrasonic image. The parturition axis construction method has the advantages of being easy to operate, high in accuracy, free of harm to pregnant women and fetuses and the like, and clinical application and popularization are facilitated.

Description

technical field [0001] The invention relates to the field of obstetrical monitoring, in particular to a method for constructing an obstetric axis based on a pelvis model. Background technique [0002] The birth axis is the trajectory of the center of the fetal head during natural childbirth, and it is also an imaginary axis connecting the midpoints of the pelvic planes. Accurately constructing the birth axis can provide a more convenient and accurate representation method for the digital and precise measurement of fetal position, and can also make up for the inadequacy of traditional fetal head position measurement methods that cannot be combined with modern monitoring equipment during labor. [0003] The Chinese invention patent application (Application No. 201910848455.1) discloses a production axis construction method. This method only roughly mentions the determination of the center point of the pelvic section, but it is difficult to achieve in actual operation and canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G16H50/50
CPCG06T17/00G16H50/50
Inventor 赵凯歌李丽李铭恒李晓婉陈剑梅刘志洪
Owner GUANGZHOU SUNRAY MEDICAL APP
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