Tantalum support

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...

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

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