Unlock instant, AI-driven research and patent intelligence for your innovation.

Semi-pelvic prosthesis

A technology of half pelvis and prosthesis, applied in the field of medical prosthesis, can solve the problems that the movement function of limbs cannot be better recovered, the prosthesis cannot serve as soft tissue attachment, and the prosthesis cannot serve as ligament, etc., so as to increase the interoperability, Guarantee the effect of strength and exercise function

Active Publication Date: 2020-12-04
BEIJING CHUNLIZHENGDA MEDICAL INSTR
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The surface of the hemipelvic prosthesis is machined and has no pores on the surface. After surgery, the prosthesis cannot serve as the soft tissue attachment, the prosthesis cannot serve as the fulcrum of the ligament, and the motor function of the limbs cannot be better restored.
[0005] (2) The hemipelvic prosthesis cannot be attached to the soft tissue, and there will be a cavity between the prosthesis and the soft tissue, which is prone to infection
[0006] (3) Some hemipelvic prostheses on the market are designed with bone trabecular structure on the bone contact surface, which is interconnected in a non-uniform state, but the interior of the trabecula is closed, and there are certain restrictions on the transportation of minerals and other nutrients. limitation

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
  • Semi-pelvic prosthesis
  • Semi-pelvic prosthesis
  • Semi-pelvic prosthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Please refer to the attached Figure 1-5 , the purpose of this embodiment is to provide a hemipelvic prosthesis, including: iliac crest wing 1 and metal outer cup 2, and iliac crest wing 1 and metal outer cup 2 are connected by a tapered connection structure 3; The bone support wing 1 can be connected with three metal outer cups 2 of different sizes through a tapered connection structure 3 . It is worth mentioning that the thickness of the trabecular bone body 4 on the surface of the hemipelvic prosthesis is 0.5mm, and the surface of the hemipelvic prosthesis is completely covered with trabecular bone, which facilitates the rapid and good growth of soft tissues and improves the motor function of the limbs. Better recovery.

[0033] In this embodiment, the trabecular bone structural body 4 has several interlaced trabeculae 8, and the wire diameter of the trabecular 8 is 0.1 mm. The interlaced trabeculae 8 form the trabecular structure holes 9 of the bone trabecular str...

Embodiment 2

[0039] Please refer to the attached Figure 1-5 , the purpose of this embodiment is to provide a trabecular bone structure, please refer to the attached Figure 1-5 , the purpose of this embodiment is to provide a hemipelvic prosthesis, including: iliac crest wing 1 and metal outer cup 2, and iliac crest wing 1 and metal outer cup 2 are connected by a tapered connection structure 3; The bone support wing 1 can be connected with three metal outer cups 2 of different sizes through a tapered connection structure 3 . It is worth mentioning that the thickness of the trabecular bone body 4 on the surface of the hemipelvic prosthesis is 5mm, and the surface of the hemipelvic prosthesis is completely covered with trabecular bone, which facilitates the rapid and good ingrowth of soft tissues and improves the motor function of the limbs. good recovery.

[0040] In this embodiment, the trabecular bone structural body 4 is composed of several interlaced trabeculae 8, and the wire diamet...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of medical prostheses, and provides a semi-pelvic prosthesis. The semi-pelvic prosthesis comprises an ilium supporting wing and a metal outer cup which areconnected through a taper connecting structure; bone trabecula structure bodies uniformly cover the outer surfaces of the ilium supporting wing and the metal outer cup, each bone trabecula structurebody is composed of a plurality of mutually-staggered trabeculae, and the mutually-staggered trabeculae form bone trabecula structure holes; a hole structure is arranged in each bone trabecula structure body, each hole structure comprises a plurality of side face holes and a plurality of transverse holes, and the multiple side face holes and the multiple transverse holes are mutually crossed; andpart of the multiple side face holes are perpendicular to the axis of each bone trabecula structure body, and part of the multiple side face holes are obliquely arranged. The semi-pelvic prosthesis has the advantages that the surfaces of the bone trabeculae are completely covered with the semi-pelvic prosthesis, so that soft tissue can grow inside fast and well, and the movement function of the limbs can be better recovered.

Description

technical field [0001] The invention relates to the technical field of medical prosthesis, in particular to a semi-pelvic prosthesis. Background technique [0002] At present, the surface of the hemipelvic prosthesis in the prior art has no pores for attachment to the soft tissue, and the prosthesis cannot grow together with the soft tissue. In addition, the existing pelvic prosthesis is integrally machined from forged titanium alloy and is fixed by screws. This fixing structure can only perform the function of mechanical fixation. [0003] The deficiencies of existing hemipelvic prostheses are as follows: [0004] (1) The surface of the hemipelvic prosthesis is machined and has no pores on the surface. After surgery, the prosthesis cannot serve as the soft tissue attachment, the prosthesis cannot serve as the fulcrum of the ligament, and the motor function of the limbs cannot be better restored. [0005] (2) The hemipelvic prosthesis cannot be attached to the soft tissue,...

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 Applications(China)
IPC IPC(8): A61F2/30A61F2/32A61F2/34
CPCA61F2/30942A61F2/30771A61F2/30734A61F2/34A61F2/32A61F2002/30329A61F2002/30985A61F2002/30772
Inventor 张朝锋许奎雪史春宝康树靖王振国
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR