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Segmented porous implant and design and manufacturing method thereof

A manufacturing method and implant technology, applied in the fields of implantology, medical science, dentistry, etc., can solve the problems of porous structure damage, failure to consider porous structure, implant fracture, etc., to ensure strength and use safety, facilitate ingrowth, unbreakable effect

Active Publication Date: 2017-04-26
宁波创导三维医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the patent has the following problems: 1. The patent does not consider the impact of the porous structure on the strength of the implant. When the porous structure occupies a large volume, the implant may break; 2. The entire implant body and The threads are all porous structures, and the porous structure may be damaged during the implantation process or when the implant is subjected to a large lateral force after implantation

Method used

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  • Segmented porous implant and design and manufacturing method thereof
  • Segmented porous implant and design and manufacturing method thereof

Examples

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Embodiment 1

[0043] Embodiment 1: The body porous segment 3 and the threaded porous segment 4 of the segmented porous implant each occupy 3 sector-shaped areas. The body porous section 3 is divided into two parts radially from the inner surface to the outer surface, and the pore diameter gradient increases to 150 μm and 350 μm respectively. The pore diameter of the threaded porous section 4 is 60 μm, and the thickness of the threaded porous section 4 is 0.3 mm. The thickness of the porous section 3 is 0.5 mm, and the main body roughness of the body 2 is 4 μm.

Embodiment 2

[0044] Embodiment 2: The body porous segment 3 and the threaded porous segment 4 of the segmented porous implant each occupy 4 fan-shaped areas. The body porous section 3 is divided into three parts along the radial direction from the inside to the outside surface, the pore diameter gradient increases, respectively 150 μm, 200 μm and 250 μm, the pore diameter of the threaded porous section 4 is 100 μm, and the thickness of the threaded porous section 4 is 0.6 mm , the thickness of the body porous section 3 is 1 mm, and the main body roughness of the body 2 is 10 μm.

Embodiment 3

[0045] Embodiment 3: The body porous segment 3 and the threaded porous segment 4 of the segmented porous implant each occupy 5 sector-shaped areas. The body porous section 3 is divided into three parts along the radial direction from the inside to the outside surface, and the pore diameter gradient increases, respectively 150 μm, 200 μm and 400 μm, the pore diameter of the threaded porous section 4 is 140 μm, and the thickness of the threaded porous section 4 is 0.9mm , the thickness of the body porous section 3 is 1.3 mm, and the main body roughness of the body 2 is 20 μm.

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Abstract

The invention relates to a segmented porous implant and a design and manufacturing method thereof. The segmented porous implant comprises a head portion and a body portion, the body portion is axially provided with a thread structure distributed around the body portion, the body portion and the thread structure are provided with porous structures distributed at intervals peripherally along the body portion, and the porous structures axially extend along the body portion to partition the body portion into main sections of the body portion and porous sections of the body portion and further partition the thread structure into thread body sections and thread porous sections, and the thread porous sections and the porous sections of the body portion are in a same sector section. By adoption of the segmented porous implant and the design and manufacturing method thereof, the problem of proneness to damages of porous structures of existing implants is solved, and high strength and safety in use are realized.

Description

technical field [0001] The invention relates to a medical implant biomaterial and a design and manufacture method thereof, in particular to a segmented porous implant and a design and manufacture method thereof. Background technique [0002] The rough surface of the porous implant is conducive to the integration with the surrounding bone after implantation, forming a stable fixation. Most of the existing implants have rough surfaces produced by plasma spraying or sandblasting, and the rough surfaces obtained by these methods are likely to cause particle shedding or contamination in structure. Using 3D printing to manufacture porous implants can solve the above problems. And the 3D printed porous implant can pre-design the shape, size and distribution of holes to meet the requirements of bone growth and the strength of the implant itself. [0003] The existing patent application number for manufacturing porous implants by 3D printing is 201410691945.2, and its publication n...

Claims

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Application Information

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IPC IPC(8): A61C8/00B22F3/00B33Y10/00
CPCA61C8/0037B22F3/00B33Y10/00
Inventor 秦勉宫海波刘亚雄王玲
Owner 宁波创导三维医疗科技有限公司
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