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half pelvic prosthesis

A technology of half pelvis and prosthesis, applied in the field of medical prosthesis, can solve the problems such as the inability to recover the movement function of the limbs, the inability of the half pelvis prosthesis to attach to the soft tissue, and the inability of the prosthesis to attach to the soft tissue. Sex, Guaranteed Strength, Reduced Infection Effects

Active Publication Date: 2022-03-25
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • 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 hemi-pelvic 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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 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.

[0029] 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 trabecular structur...

Embodiment 2

[0035] 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.

[0036] In this embodiment, the trabecular structure body 4 is composed of several interlaced trabeculae 8, and the wire diameter of ...

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Abstract

The invention relates to the technical field of medical prosthesis and provides a half-pelvic prosthesis. It includes: the ilium support wing and the metal outer cup, the ilium support wing and the metal outer cup are connected through a taper connection structure; the outer surfaces of the ilium support wing and the metal outer cup are all uniformly covered with a trabecular structure body, The trabecular structure body is composed of a number of interlaced trabeculae, and the interlaced trabeculae form a trabecular structure hole; the trabecular bone structure body is provided with a hole structure inside, and the hole structure includes several side surfaces hole and several transverse holes, several of the side holes intersect with several of the transverse holes; wherein, some of the several of the side holes are arranged perpendicular to the axis of the trabecular structure body, and some of the several of the side holes are arranged obliquely. The beneficial effect of the present invention is that: the hemipelvic prosthesis is completely covered with the surface of the trabecular bone, which facilitates fast and good ingrowth of the soft tissue and better recovery of the motor function of the limbs.

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

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Application Information

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Patent Type & Authority Patents(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