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Human sacral prosthesis fusion device and preparing method thereof

A fusion device and prosthesis technology, applied in the direction of prosthesis, additive manufacturing, manufacturing tools, etc., can solve the problems of rejection and poor fusion, poor treatment effect, short time consumption, etc., to achieve lightweight, weight reduction, Conducive to the effect of molding design

Active Publication Date: 2017-08-18
西安赛隆增材技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The human sacral prosthetic fusion device solves the problems of poor treatment effects such as postoperative loosening, fracture, rejection and poor fusion of the existing screw-rod reconstruction or bone graft reconstruction, and overcomes the inability of traditional techniques with the help of 3D printing technology. Personalized and precise manufacturing of sacral prosthesis and porous structure fusion surface, with short time consumption and strong applicability

Method used

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  • Human sacral prosthesis fusion device and preparing method thereof
  • Human sacral prosthesis fusion device and preparing method thereof
  • Human sacral prosthesis fusion device and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 , image 3 Figure 4 with Figure 5 As shown, the present invention includes a prosthesis shell 1 that is consistent with the contour and size of the patient's sacrum, and the prosthesis shell 1 has a bending portion that is consistent with the physiological curvature of the patient's sacrum. An autologous bone channel 2 for filling the patient's own bone is provided, a channel through hole 8 is opened on the channel wall of the autologous bone channel 2, a fixation nail channel 3 is provided on the prosthesis shell 1, and the prosthesis shell The body 1 is provided with a porous filler 5 , and the two sides of the prosthesis shell 1 are provided with fixing lugs 4 , and fixing holes 6 are opened on the fixing lugs 4 .

[0042] It should be noted that the setting of the prosthesis shell 1 that is consistent with the outline and size of the patient's sacrum is to be consistent with the patient's own sacrum. Since there are certain differe...

Embodiment 2

[0055] The preparation method of the human sacral prosthesis fusion device of the present embodiment comprises the following steps:

[0056] Step 1. Reconstruct the patient's sacral CT scan picture in the medical image software minics, measure the appearance size of the patient's sacrum (X: 67mm; Y: 43.1mm; Z: 42.2mm), and in the Solidworks modeling software, according to the measured The size of the patient's sacrum Create the original model of the sacral prosthesis, and then import the original model into the Magics software, design the prosthesis shell 1, the shell wall thickness is 1mm, the sharp corner chamfer R5mm, the length, width and height of the fixed ear plate 4 The wall thickness is 1mm, three fixing holes 6 are provided on the fixing ear plate 4, the diameter of the fixing holes 6 is 5mm, the three fixing holes 6 are distributed in the center, and the hole interval is 10mm; the small diameter of the solid pipe of the fixing nail channel 3 is 7.9mm, The major diam...

Embodiment 3

[0063] The preparation method of the human sacral prosthesis fusion device of the present embodiment comprises the following steps:

[0064] Step 1. Reconstruct the patient's sacral CT scan picture in the medical image software minics, measure the appearance size of the patient's sacrum (X: 69mm; Y: 44.6mm; Z: 44.1mm), and in the Solidworks modeling software, according to the measured The size of the patient's sacrum Create the original model of the sacral prosthesis, and then import the original model into the Magics software, design the prosthesis shell 1, the shell wall thickness is 1mm, the sharp corner chamfer R5mm, the length, width and height of the fixed ear plate 4 The wall thickness is 1mm, three fixing holes 6 are set on the fixing ear plate 4, the diameter of the fixing holes 6 is 2mm, the three fixing holes 6 are distributed in the center, and the interval between the three fixing holes 6 is 9mm; the fixing nail channel 3 is a solid tube The minor diameter is 7.9m...

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Abstract

The invention discloses a human sacral prosthesis fusion device. The device comprises a prosthetic housing according with the sacrum of a patient in contour and size. The prosthetic housing is provided with a bent portion according with the physiological curvature of the sacrum of the patient. An autogenous bone channel used for containing the autogenous bone of the patient is formed in the prosthetic housing, wherein a channel through hole is formed in the wall of the autogenous bone channel. A fixing nail channel is formed in the prosthesis housing. Porous filler is arranged in the prosthetic housing. Fixing ear plates are arranged on both sides of the prosthetic housing, and fixing holes are formed in each fixing ear plate. The invention also discloses a method for preparing the human sacral prosthesis fusion device. The human sacral prosthesis fusion device has the advantages of being high in strength, capable of achieving fusion easily, small in rejection risk and the like, solves the problems of postoperation looseness, rupture, rejection, poor fusion and the like in the prior art, and overcomes the defect of the traditional process that personalized and accurate manufacturing of a sacral prosthesis and porous structure fusion face can not be achieved by means of the 3D printing technique, time consumption is low, and applicability is high.

Description

technical field [0001] The invention belongs to the technical field of orthopedic surgery implants, and in particular relates to a human sacral prosthesis fusion device and a preparation method thereof. Background technique [0002] The sacrum is an important link in the transition from the spine to the pelvis. It plays an extremely important role in supporting the spine, maintaining the stability of the pelvis, transmitting physiological loads from the upper part of the body, and bearing external weights. Sacral tumors account for a certain proportion of spinal tumors, and surgical resection is currently the main method for the treatment of sacral tumors. However, due to the special location of the sacrum, the operation is difficult, and because the operation usually partially or even completely destroys the lumbosacral and sacroiliac joints, how to restore and reconstruct the stable lumbosacral mechanical function after surgery has always been of great concern to the medic...

Claims

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Application Information

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IPC IPC(8): A61F2/44A61F2/30
CPCA61F2/30771A61F2/30942A61F2/442A61F2/4455A61F2002/30719A61F2002/30772A61F2002/30985
Inventor 赵培贾文鹏全俊涛弋阳向长淑汤慧萍
Owner 西安赛隆增材技术股份有限公司
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