Personalized assembled semi-pelvic prosthesis

A half-pelvis and assembly technology, applied in the fields of prosthesis, medical science, acetabular socket, etc., can solve the problems of only cement-type acetabular cups, large half-pelvis prosthesis, limited mobility, etc., and achieve the goal of reducing screw breakage Risk, small size of prosthesis, effect of increased stability

Pending Publication Date: 2020-09-01
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the hemipelvic prosthesis in the prior art still has the following defects: (1) the hemipelvic prosthesis does not have the pubic connection assembly, which makes the acetabular cup suspended and has poor stability; (2) although the hemipelvic prosthesis has The pubic connector, but the acetabular cup is only cement type, and the mobility is limited; (3) The taper locking a

Method used

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  • Personalized assembled semi-pelvic prosthesis
  • Personalized assembled semi-pelvic prosthesis
  • Personalized assembled semi-pelvic prosthesis

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Embodiment Construction

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly or indirectly located on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, and is only for conv...

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Abstract

The invention relates to the technical field of medical instruments, and provides a personalized assembled semi-pelvic prosthesis, which comprises a personalized pelvis support, an assembled acetabular cup, a fixing bolt and a pubis plate. A plurality of personalized nail holes, a plurality of through holes and two universal nail threaded holes are formed in the personalized pelvis support; an inner conical hole and an inner threaded structure are arranged in the middle cylindrical part of the personalized pelvis support; a first anti-rotation tooth structure is arranged at the tail end of themiddle cylindrical part of the personalized pelvis support; the assembled acetabular cup is provided with an outer cone and a pubis plate fixing hole; an inner hole is formed in the outer cone; and the assembled acetabular cup is further provided with a second anti-rotation tooth structure or a third anti-rotation tooth structure. The personalized assembled semi-pelvic prosthesis has the beneficial effects that the personalized pelvis support is connected with the assembled acetabular cup through the conical matching structure, locking is conducted through fixing bolts, and rotation prevention is conducted through the tooth structures at the connector, so that the purpose that the angle of the assembled acetabular cup is adjustable is achieved, and the anti-rotation effect is achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, relates to a personalized assembled semi-pelvic prosthesis. Background technique [0002] The prior art CN2017108039234 discloses an iliac bone ingrowth compound fixed hemipelvic prosthesis, including the ilium fixed component, the ilium fixed component, the ilium fixed flank, the ilium fixed platform and the taper post, and the ilium fixed flank It is integrally connected with the iliac bone fixation platform to form an L-shaped structure; multiple locking cortical bone screw holes and sacroiliac joint screw holes are opened on the ilium fixed side, and the cortical bone screws are locked to the inner and outer cortical bone of the ilium through the locking cortical bone screw holes. The sacroiliac joint screw is locked in the sacroiliac joint through the screw hole of the sacroiliac joint; the taper column is cylindrical, and its upper end is integrally connected ...

Claims

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Application Information

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IPC IPC(8): A61F2/32A61F2/34
CPCA61F2/32A61F2/34A61F2/30749A61F2002/30662A61F2002/30528
Inventor 史春生叶招明史春宝李明洋康树靖许奎雪王建超王振国
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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