Simulation method for funnel breast orthopaedic surgery

A simulation method and technology of orthopedic surgery, applied in image data processing, medical science, internal bone synthesis, etc.

Inactive Publication Date: 2010-10-13
NORTHWESTERN POLYTECHNICAL UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nuss operation has the following disadvantages: (1) The fixed position of the support plate mainly depends on the doctor's clinical experience, and there is no scientific and accurate analysis system for auxiliary positioning, thus In some children, the support plate shifted due to the compression of the thorax after operation, causing damage to the heart and great vessels; The direction and magnitude of the force also vary widely
If only relying on the doctor's experience, it is easy to cause pressure on the viscera in the thoracic cavity and produce complications; (3) the success rate of the first operation is about 70-90%. burden

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Simulation method for funnel breast orthopaedic surgery
  • Simulation method for funnel breast orthopaedic surgery
  • Simulation method for funnel breast orthopaedic surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] 2) To test the triangles in the three-dimensional mesh model, the ratio of the height of the triangle to the base (height / base) is used as a parameter, the triangle with a height / base value approximately 0 is an inferior triangle, and the triangle with a height / base value approximately 1 It is an excellent triangle, and the quality of each triangle is measured by this standard, so as to evaluate the quality of preliminary mesh division. If the number of inferior triangles is greater than 0.05% of the total, mesh optimization must be performed. Change the meshing method during the optimization process, re-mesh the surface, keep the superior triangles, remove the inferior triangles and redundant model surfaces, and check the re-divided triangles again until the number of inferior triangles is less than 0.05% of the total triangle number . After mesh optimization, in areas with smoother bones, the size of triangle units is larger and the number of meshes is less; in areas...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a funnel chest orthopaedic surgery simulation method; chest three-dimension visualization bone models and costal cartilage models are respectively processed by face mesh division, and the mesh is optimized; a mesh conversion is used on the basis of mesh optimization, and a chest model is converted into a body mesh from a face mesh; rib, costal cartilage and breast bone arerespectively material-evaluated, and skeleton body mesh model of each part is assembled so as to obtain a complete chest three-dimensional mechanical model; boundary conditions and loading force moment are determined, and the chest model is processed by finite element analysis so as to obtain the stress, strain and displacement conditions of each skeleton part under the action of different external forces; the incision position, support plate material, fixing method and supporting force moment of funnel chest surgery are simulated so that the success ratio of funnel chest surgery is increasedto over 98% from 70-90% of the prior art.

Description

technical field [0001] The invention relates to an orthopedic surgery simulation method, in particular to a pectus pectus orthopedic simulation method. Background technique [0002] Funnel chest is a congenital thoracic deformity in which the sternum part is sunken inward, and the adjacent costal cartilage is also sunken with it, and the appearance is funnel. [0003] The well-known deformed sternum correction surgery is Nuss minimally invasive orthopedic surgery, and the objects are mostly children whose costal cartilage has not yet been calcified. Diagnose the degree of sternal depression of the child before operation, determine the pectus excavatum index, select a suitable support plate according to the doctor’s experience, bend it to a certain degree, and implant it into the patient’s body through minimally invasive surgery under thoracoscopic surgery. The cartilage lifts up. [0004] The Nuss operation has the following shortcomings: (1) The fixed position of the sup...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/40A61B17/68A61B5/00G06T19/00
Inventor 史仪凯王萑袁小庆卫延斌张华
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap