Novel lunate prosthesis, and design and preparation method thereof

A new type of lunate technology, applied in the medical field, can solve the problems of low mechanical strength and high surface roughness of products

Pending Publication Date: 2021-07-06
重庆熙科医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of lunate prosthesis and its design and preparation method, aiming to solve the problem that 3D printing in the prior art can prepare highly simulated lunate prosthesis, but its surface roughness is high and the product mechanics Low strength is a technical problem that restricts the popularization and application of this technology

Method used

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  • Novel lunate prosthesis, and design and preparation method thereof
  • Novel lunate prosthesis, and design and preparation method thereof
  • Novel lunate prosthesis, and design and preparation method thereof

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specific Embodiment approach

[0048] DETAILED DESCRIPTION OF THE INVENTION: Molding Molding Molding Design: Based on Monasuring Monastery: 1,3D Molding Reference Face Design: The horizontal plane placed on the maximum concave header of the month is a reference plane. 2, moon bone mold profile design: along the head, hook moon, triangle, the contour boundary of the boat "section of the contour boundary is molded; the division surface can be a surface; 3, moon bone mold Pouring System Design: The casting port is located in the non-joint center position in the middle of the moon.

[0049] 3D print prepared moon bone mold: 3D printing method is SLM, printing equipment is renishawam250, mold material is the import of 316L stainless steel powder, print parameters Table 1:

[0050] Table 1: Print Power and Speed ​​and Energy Density

[0051]

[0052] Injection Process Manufacturers Moon Bone Promoter:

[0053] Moonfront prosthesis material is PEEK, injection molding machine is Ruiming Technology SZS30, injection mo...

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Abstract

The invention discloses a novel lunate prosthesis, and a design and preparation method thereof. With overall consideration of the process constraint of a 3D printing molding technology and an injection molding technology, and through a mold design method based on a lunate geometry, the lunate can have contralateral lunate (lunate concave surface) and radiolunate joint (lunate convex surface), and targeted 3D forming reference surface selection and mold parting surface design can be performed on a lunate mold prepared through 3D forming. The mold includes an upper layer mold and a lower layer mold; an upper pouring port is manufactured in the upper layer mold; and a lower pouring port is manufactured in the lower layer mold, and the lower layer mold has a parting surface. Therefore, the injection molding quality of the lunate prosthesis can be guaranteed, and the lunate prosthesis can be conveniently taken out.

Description

Technical field [0001] The present invention relates to the field of medicine, and more particularly to a new type of monthly prosthesis and its design and preparation method thereof. Background technique [0002] At present, the bone fracture is a clinically common type of fracture, which has a high incidence. Due to direct violence, indirect violence, and mixed violence, the fracture is mainly caused by significant effects, and the moon bone fracture should be resumed to restore the flat surface, because the male bone and femur are formed in front of the femur. This reduces the occurrence of traumatic patellofematic arthritis to prevent knee flexion contracture. If the improper handling can cause non-healing, arthritis adhesion, traumatic arthritis, bone infection, etc. Surgical treatment is suitable for use in type II and type III month bone fractures. This type of branch is affecting the joint surface of the month. In the future, the risk of traumatic arthritis is very large,...

Claims

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Application Information

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IPC IPC(8): A61F2/42A61F2/30
CPCA61F2/4261A61F2/30942A61F2002/4292A61F2002/30948A61F2002/30985
Inventor 于宁黎万乔王森张凯飞刘飞谢海琼
Owner 重庆熙科医疗科技有限公司
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