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Tantalum support

A support and support part technology, applied in the direction of bone implants, joint implants, joint implants, etc., can solve the problem of inability to satisfy bone tissue growth and cell proliferation, failure to eliminate stress shielding, and prone to stress Avoid problems such as occlusion, achieve the effect of benefiting initial stability, reliable bone ingrowth effect, and achieving initial stability

Pending Publication Date: 2021-05-07
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the porous tantalum support rod structure has relatively single pore diameter and wire diameter. Using tantalum rods to fill femoral head necrosis or bone defect parts cannot place small broken bones in the prosthesis, so that it cannot meet the requirements of better bone tissue. Ingrowth and cell proliferation
The trabecular bone wire diameter and pore diameter are single, which is not conducive to satisfying bone ingrowth and soft tissue ingrowth and cell proliferation, and cannot eliminate stress shielding phenomena; 3D printing pads are microporous structures with small pore diameters. Bone grafting is not possible, and the bone ingrowth effect is relatively poor; the spacer prosthesis is relatively heavy; the elastic modulus is high, and stress shielding is prone to occur after surgery

Method used

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, a tantalum support of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0023] The invention provides a tantalum support,

[0024] Including a support body 1, the support body is irregular, such as irregular spherical, ellipsoid, potato shape common in life, etc., the support body 1 is a multi-layer structure, each bone of the support body is small The voids formed between the beams are irregularities. The pore diameter of each layer of the main body of the support, the diameter of the bone trabecula and the porosity are all different;

[0025] Each trabecular bone in each layer of the support body 1 has a connection structure without broken wires, which increases the strength of the support body. In this example, the diameter of the trabecular bone in the outermost layer of the suppor...

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Abstract

The invention provides a tantalum support. The tantalum support comprises a support body, wherein the support body is in an irregular shape, the support body is of a multi-layer structure, and pores of the support body are irregular. According to a bone trabecula structure, on the basis of a trabecula with burrs, the pores are additionally formed in the transverse direction and the vertical direction, on the basis of ensuring the strength of the trabecula, the original advantages are reserved, the adhesion, proliferation and differentiation capacities of osteoblasts are improved, bone ingrowth is facilitated, the friction force is large, and the initial stability is facilitated. Compared with the prior art, interconnection and intercommunity are higher, nutrients and other substances can be transported more smoothly, the metabolic site area is enlarged, the bone ingrowth progress is quicker, and the bone ingrowth effect is firmer.

Description

technical field [0001] The invention relates to a medical device, in particular to a tantalum support. Background technique [0002] In the prior art, the porous tantalum support rod structure has relatively single pore diameter and wire diameter. Using tantalum rods to fill femoral head necrosis or bone defect parts cannot place small broken bones in the prosthesis, so that it cannot meet the requirements of better bone tissue. ingrowth and cell proliferation. The trabecular bone wire diameter and pore diameter are single, which is not conducive to satisfying bone ingrowth and soft tissue ingrowth and cell proliferation, and cannot eliminate stress shielding phenomena; 3D printing pads are microporous structures with small pore diameters. Bone grafting is not possible, and the bone ingrowth effect is relatively poor; the spacer prosthesis is relatively heavy; the elastic modulus is high, and postoperative stress shielding is prone to occur. [0003] Therefore, there is an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28A61F2/30A61F2/36
CPCA61F2/28A61F2/30771A61F2/30942A61F2/3609A61F2002/30784A61F2002/30985A61F2002/2828A61F2002/2835A61F2002/3611A61F2310/00023A61F2310/00131
Inventor 许奎雪任宏志史文超史春宝王振国
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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