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Degradable porous iron-based bone fracture plate with pore-forming agent and additional material manufacturing method of bone fracture plate

A pore-forming agent and bone plate technology, used in additive manufacturing, additive processing, outer plates, etc., can solve the problems of high elastic modulus, slow degradation rate, inertness, etc., and achieve accelerated degradation and good biocompatibility , the effect of increasing the specific surface area

Pending Publication Date: 2019-08-23
南通罗伯特医疗科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

316L stainless steel is currently the most widely used material. It has good corrosion resistance, inertness in the body, and good safety, but the nickel element in it has potential toxicity.
However, pure iron as a bone plate material needs to solve the problems of high elastic modulus and slow degradation rate

Method used

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  • Degradable porous iron-based bone fracture plate with pore-forming agent and additional material manufacturing method of bone fracture plate
  • Degradable porous iron-based bone fracture plate with pore-forming agent and additional material manufacturing method of bone fracture plate
  • Degradable porous iron-based bone fracture plate with pore-forming agent and additional material manufacturing method of bone fracture plate

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Embodiment Construction

[0035] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0036] Embodiments of the present invention relate to a degradable porous iron-based bone plate added with a pore-forming agent, such as Figure 1-Figure 3 As shown, it includes a main body part 6 and a side wing part 5. The main body part 5 is a porous unit cell structure array composed of a plurality of fine cylinders, which is used to fit the bones of the fracture site; as figure 1 As shown, the porous unit cell struct...

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Abstract

The invention relates to a degradable porous iron-based bone fracture plate with a pore-forming agent and an additional material manufacturing method of the bone fracture plate. The bone fracture plate comprises a main plate body part and side wing parts, and the main plate body part is a porous unit cell structure array composed of multiple micro fine cylinders and is used for fitting the skeleton of a fractured part; the whole porous unit cell structure is of a hexahedral structure, the centers of the adjacent faces of the hexahedral structure are connected through the first micro fine cylinders, the diagonals of all the faces in the hexahedral structure are connected through the second micro fine cylinders, and vertical lines of the hexahedral structure are connected through the third micro fine cylinders; the side wing parts are arranged at the two sides of the main plate body part and used for fixing the main plate body part and the skeleton of the fractured part; micro holes withthe diameter of 1-50 microns are distributed in the main plate body part and the side wing parts. The bone fracture plate has proper in-vivo degradation speed and mechanical properties.

Description

technical field [0001] The invention relates to the technical field of medical bone plates, in particular to a degradable porous iron-based bone plate added with a pore-forming agent and an additive manufacturing method thereof. Background technique [0002] Bone plates are currently the most common way to fix limb fractures, and metal materials are the most commonly used materials for bone plates, and their safety and effectiveness have been extensively verified. At present, the metal materials successfully used in clinic include stainless steel, titanium alloy, etc., and degradable magnesium alloy bone plate is under research. 316L stainless steel is currently the most widely used material. It has good corrosion resistance, inertness in the body, and good safety, but the nickel element in it has potential toxicity. Ti-6Al-4V is currently the main material for titanium bone plates, with an elastic modulus of about 100 GPa. Under the same strength, the density of bone plate...

Claims

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Application Information

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IPC IPC(8): A61L31/02A61L31/08A61L31/14A61B17/80B22F3/105B33Y10/00B33Y50/00B33Y70/00B33Y80/00
CPCA61L31/148A61L31/146A61L31/022A61L31/08A61B17/8061B33Y10/00B33Y50/00B33Y70/00B33Y80/00B22F10/00B22F10/62B22F10/28B22F10/80Y02P10/25
Inventor 张超群胡瑞淇叶欣王纯怡柴岗张艳徐海淞
Owner 南通罗伯特医疗科技有限公司
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