A personalized β‑ti‑15mo alloy‑al 2 o 3 Ceramic tibial plateau artificial bone scaffold

A tibial plateau, -ti-15mo technology, applied in the field of medical devices, can solve problems such as research gaps in the application of bone defects around joints, and achieve the effects of low surface friction coefficient, high wear resistance, and long-term wear resistance

Inactive Publication Date: 2017-07-28
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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  • Claims
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Problems solved by technology

However, the application research on periarticular bone defects containing load-bearing articular surfaces is still blank

Method used

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  • A personalized β‑ti‑15mo alloy‑al <sub>2</sub> o <sub>3</sub> Ceramic tibial plateau artificial bone scaffold
  • A personalized β‑ti‑15mo alloy‑al <sub>2</sub> o <sub>3</sub> Ceramic tibial plateau artificial bone scaffold
  • A personalized β‑ti‑15mo alloy‑al <sub>2</sub> o <sub>3</sub> Ceramic tibial plateau artificial bone scaffold

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Embodiment 1

[0014] Embodiment 1: Carry out thin-slice CT scanning to tibial plateau fracture area, obtain the thin-slice CT image that contains fracture defect part, apply MIMCS software to design CAD three-dimensional model, input final design parameter into 3D printer, 15wt%Mo, 1wt%TiO 2 and 84wt% Ti powder and Al 2 o 3 The powders are respectively added to the powder tank of the selective laser sintering system, using selective laser sintering technology, heated to 1200°C under the protection of inert gas, and the heating rate is 5°C / min~10°C / min, and the integrated porous β- Ti-15Mo Alloy Trabecular Bone 3 and Al 2 o 3 The main part of the ceramic articular surface 2 is annealed after being kept warm for 2 hours and gradually cooled with the furnace at a cooling rate of 5°C / min to 10°C / min. The printed 3 porous β-Ti-15Mo alloy trabecular bone and Al 2 o 3 The ceramic articular surface 2 is implanted in the tibial plateau fracture area, and fixed in the fracture area with two scre...

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Abstract

The invention belongs to the field of medical devices, and in particular provides to a customized beta-Ti-15Mo alloy-Al2O3 ceramic tibial plateau artificial bone scaffold. According to the mechanism of a fracture defect site of a patient's tibia plateau, the invention uses the reverse engineering and CAD technology to design a customized beta-Ti-15Mo alloy -Al2O3 ceramic tibial plateau artificial bone scaffold matching the defect site and uses a selective laser sintering technology to produce the scaffold, which comprises porous beta-Ti-15Mo alloy artificial bone trabecula and Al2O3 ceramic articular surfaces. The present invention fills the blank of tibial plateau artificial bone scaffold with the articular surfaces, is more in line with tibial plateau fracture anatomical characteristics, and provides a feasible scheme for customized treatment.

Description

technical field [0001] The invention belongs to the field of medical equipment, specifically a personalized β-Ti-15Mo alloy-Al 2 o 3 Ceramic tibial plateau artificial bone scaffold. Background technique [0002] In orthopedic surgery, bone repair, bone filling, and bone support are commonly used treatments. Because tibial plateau fractures involve the articular surface, there are higher requirements for the mechanical strength and biocompatibility of the replacement implant materials, as well as the surface friction coefficient and wear resistance of the articular surface. In addition, due to the irregular shape of the defect structure, the mismatch between the implant and the defect area requires the operator to reshape and repeatedly match the traditional implant during the operation, which prolongs the operation time and increases the intraoperative cost. The amount of bleeding will ultimately affect the effect of the operation. There are many medical implants, such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/06A61L27/10A61L27/56A61L27/50
Inventor 谢杨金光辉孙晓飞章云童马兵李超董薇夏琰李刚
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
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