Design and use method of personalized patella fracture surgery navigation template

A technology for surgical navigation and patella fracture, applied in the field of medical devices, can solve the problems of not fully revealing the patella and fitting, and achieve the effect of reducing the damage of blood supply and the occurrence of adhesion, and reducing the probability of infection

Pending Publication Date: 2021-04-02
董谢平
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A mask with the bone surface as the fitting surface can usually overlap and match the fitting surface with the real bone surface seen during the operation to obtain a precise fit; however, the thickness of the anterior surface of the patella that can be seen directly varies from person to person The quadriceps aponeurosis and other soft tissues must be protected during the operati

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
  • Design and use method of personalized patella fracture surgery navigation template
  • Design and use method of personalized patella fracture surgery navigation template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The specific implementation of the present invention is as follows: preoperatively use multi-slice spiral CT thin layer to scan the bilateral patella of the injured, the scanning layer thickness is 1mm, and the collected CT data is imported into the computer in DICOM or JPG or BMP or Tiff format, through Mimics or E3d Or 3D Slicer or ORS visual and other software to establish the original 3D digital model of the fracture (such as figure 1 ); use the mirrored 3D digital model of the uninjured patella as a template to virtually reset the patella on the affected side, that is, splicing and comminuted bone fragments by cutting, moving, and rotating in the computer, and virtually reset the fragments of the patella on the affected side into a complete patella and upper and lower patella. 3D digital models of the lower halves of the patella (see figure 2 ), and based on this, the navigation templates for the full patella and the upper and lower half patellas were respectively...

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 design and use method of a personalized patella fracture surgery navigation template. The design and use method is used for improving fracture reduction quality and efficiency of comminuted patella. The method comprises the following steps of importing bilateral patella CT scanning data into a computer, respectively establishing 3D models of bilateral patella, mirroring a3D model of a healthy side patella, assisting virtual restoration of an affected side patella, and on the basis of the virtual restored 3D model of the subchondral bone of the patella, thickening thesubchondral bone of the patella to reach the thickness of a cartilage surface to form a cartilage surface morphology 3D model; and on the basis of the artificial virtual cartilage surface 3D model, thickening the cartilage surface of the patella to the thickness required by the surgical navigation template in a thickening manner, and finally, enabling the patella and the virtual cartilage surfaceto be subtracted in a Boolean subtraction manner, so that the design of the navigation template is completed. For displaced comminuted patella fractures, an upper half patella reduction navigation template, a lower half patella reduction navigation template and a full patella reduction navigation template need to be designed respectively, printed and formed by a 3D printer, disinfected and then used in an operation.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a method for designing and using a personalized patella fracture surgery navigation template. Background technique [0002] 3D printed surgical navigation templates have been widely used in orthopedic clinical operations to guide positioning, drilling, osteotomy, reduction and other surgical operations; the basis of its guidance is to establish a unique fit between the bone surface and the bone surface The surface mask is used as a reference for positioning or reset, or a guiding device for drilling or osteotomy is established on this mask; therefore, the accuracy of the mask is the basis for the application of surgical navigation templates. [0003] A mask with the bone surface as the fitting surface can usually overlap and match the fitting surface with the real bone surface seen during the operation to obtain a precise fit; however, the thickness of the anterior surf...

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
IPC IPC(8): A61B34/20A61B17/17
CPCA61B17/17A61B34/20A61B2034/108
Inventor 董谢平王哲牛高峰艾子政李京娜
Owner 董谢平
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