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3D printing equipment and method for preparing medical porous tantalum metal implant material using the equipment

A technology of 3D printing and implanting materials, applied in medical science, additive processing, prosthesis, etc., can solve the problems of large material waste and low precision, and achieve the effect of saving manufacturing cost, improving applicability and high precision

Active Publication Date: 2020-10-16
武汉三迪创为科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is still an indirect 3D printing method to make porous tantalum metal, which is to use an adhesive to bond tantalum metal powder into shape. This method is relatively wasteful of materials and the accuracy is not high.

Method used

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  • 3D printing equipment and method for preparing medical porous tantalum metal implant material using the equipment
  • 3D printing equipment and method for preparing medical porous tantalum metal implant material using the equipment
  • 3D printing equipment and method for preparing medical porous tantalum metal implant material using the equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A 3D printing device, such as Figure 1-3 As shown, it includes a first support 1, a workbench 2, a lifting mechanism, a heating mechanism, a 3D printing unit 4 and a planar transmission mechanism 5. The workbench 2 is horizontally arranged above the first support 1, and the heating mechanism is set At the upper end of the workbench 2, the lifting mechanism is arranged in the first support 1 and is connected to the workbench 2 by transmission. The lifting mechanism drives the workbench 2 to move up and down, and also includes a recovery tank 6 , the recovery tank 6 is a cuboid with a hollow interior and an open upper end, the recovery tank 6 is horizontally arranged on the upper end of the first support 1, and a gap for the workbench 2 to pass is opened on the bottom wall thereof , the planar transmission mechanism 5 is arranged above the first bracket 1, and is connected to the 3D printing unit 4 arranged above the recovery tank 6, and the planar transmission mechanism...

Embodiment 2

[0074] A 3D printing device, using the same 3D printing device as in Example 1 to print and manufacture porous tantalum medical implant materials.

[0075] A preparation method for printing a medical porous tantalum metal implant material based on the 3D printing device described in any of the above embodiments, which mainly includes the following steps:

[0076] Step 1, ink making: configure 35 parts by weight of nano-metal tantalum powder, 3 parts by weight of polyurethane modified epoxy resin, 2 parts by weight of silicon dioxide, and ultrapure water of 60 parts by weight, for subsequent use;

[0077] Step 2. Stirring: Add ultrapure water in advance to the vacuum reactor and stir at 250 r / min at a low speed, then add the raw materials in step 1 at 200 r / min, and stir at 60°C for 3 hours. Get the ink containing metal tantalum and set aside.

[0078] Step 3. Import the STL file: Import the STL file of the designed porous tantalum three-dimensional model into the 3D printing ...

Embodiment 3

[0086] A 3D printing device, using the same 3D printing device as in Example 1 to print and manufacture porous tantalum medical implant materials.

[0087] A preparation method for printing a medical porous tantalum metal implant material based on the 3D printing device described in any of the above embodiments, which mainly includes the following steps:

[0088] Step 1, ink making: configure 42 parts by weight of nano-metal tantalum powder, 5 parts by weight of polyurethane modified epoxy resin, 3 parts by weight of silicon dioxide, and ultrapure water of 50 parts by weight, for subsequent use;

[0089] Step 2. Stirring: Add ultrapure water in advance to the vacuum reactor and stir at 300 r / min at a low speed, then add the raw materials in step 1 at 300 r / min, and stir at 65°C for 3 hours. Obtain the ink that contains metal tantalum, standby;

[0090] Step 3. Import the STL file: Import the STL file of the designed porous tantalum three-dimensional model into the 3D printing...

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Abstract

The invention relates to 3D (three-dimensional) printing equipment. The 3D printing equipment comprises a support, a worktable, a lifting mechanism, a heating mechanism, a 3D printing unit, a planar transmission mechanism and a recovery tank, the worktable is horizontally arranged above the support, the heating mechanism is arranged on the worktable, the lifting mechanism is arranged in the support and in transmission connection with the worktable, the worktable is driven to move up and down by the lifting mechanism, the recovery tank is a cuboid with a hollow interior and an opening upper endand is horizontally arranged at the upper end of the support, a gap allowing the worktable to penetrate through is formed in a bottom wall of the recovery tank, the planar transmission mechanism is arranged above the support and is in transmission connected with the 3D printing unit above the recovery tank, the 3D printing unit is driven by the planar transmission mechanism to move on the recovery tank along a length direction or a width direction of the recovery tank, and through the 3D printing unit, a preparation sample is printed in the worktable.

Description

technical field [0001] The invention relates to the field of medical porous metal materials and a preparation method thereof. More specifically, the present invention relates to a 3D printing device and a method for preparing a medical porous tantalum metal implant material using the device. Background technique [0002] At present, with the aging of the population, common orthopedic diseases such as bone tissue damage, femoral head tissue necrosis, and hip joint damage have increased significantly. Larger, and the surgical effect of most implants is time-sensitive. After reaching a certain service life, some patients also need to carry out surgical revision to the implant, which increases pain and financial burden to the patient. [0003] Facing the problem of poor mechanical and osteoinductive properties in the treatment of bone tissue trauma and femoral tissue necrosis, as the importance of porous materials in the body is revealed, this problem has been better resolved....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/22B22F3/11B22F3/24A61L27/06A61L27/56B33Y10/00B33Y30/00
CPCA61L27/06A61L27/56B22F3/003B22F3/1007B22F3/11B22F3/22B22F3/24B22F2003/248B33Y10/00B33Y30/00
Inventor 李军超胡宁鄢然李彦法杜江涛
Owner 武汉三迪创为科技有限公司
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