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Polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and its preparation method

A 3D printing and fused deposition technology, applied in the medical field, to reduce the stress shielding effect, stimulate growth, and reduce the risk of toxicity

Active Publication Date: 2021-05-07
维度(西安)生物医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In response to the above-mentioned requirements for human bone substitutes, the purpose of the present invention is to provide a polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and its preparation method, which solves the problems existing in the prior art

Method used

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  • Polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and its preparation method
  • Polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and its preparation method
  • Polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and its preparation method

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0034] to get as figure 1 For the multi-modal artificial replacement of ribs shown, firstly, it is necessary to obtain the three-dimensional data of the affected part of the patient's ribs, such as through CT scanning and other means. According to the results of CT scanning, relevant software (such as MIMICS 17.0) is used to construct a skeleton model of the rib diseased part and its surroundings. The patient's local skeleton model obtained here includes the patient's ribs, surrounding bones and bone tumor. Then, according to the guidance of expert doctors, bone tumor resection is performed on the established three-dimensional model of the patient's ribs, and a certain amount of bone resection ...

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Abstract

The invention discloses a polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and a preparation method thereof. A variable modulus artificial bone substitute for bone grafting; this invention rationally designs the modulus gradient structure of the prosthesis according to the actual biomechanical environment and geometric characteristics of the prosthesis, so that the modulus of the prosthesis and the autogenous bone can be more matched , to transmit the stress to the human bone tissue more effectively, reduce the stress shielding to improve the biocompatibility of the prosthetic implant; The transition and connection have good biomechanical properties, can effectively avoid the stress shielding effect of the prosthesis, and are more in line with the mechanical environment and functional requirements of the human bone.

Description

technical field [0001] The invention belongs to the field of medical technology, and relates to an artificial prosthesis, more specifically, to a polyether ether ketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and a preparation method thereof. Background technique [0002] Artificial bone substitutes are widely used in human bone grafting operations. In order to ensure that the bone substitute has sufficient strength, the bone substitutes currently used for bone grafting are mainly metal. However, the stiffness of metal materials is much greater than that of human bones. After implantation in the human body, there will be a significant stress shielding effect, resulting in bone atrophy, which in turn leads to long-term loosening of bone substitutes. Therefore, to avoid the problems caused by stress shielding, the artificial bone substitutes implanted in the human body should have the strength and material mechanical properties sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20A61F2/28B33Y10/00B33Y80/00
CPCA61F2/28A61F2002/2835A61F2002/30943A61F2002/30985B33Y10/00B33Y80/00
Inventor 王玲单存清李涤尘康建峰曹毅杨春成
Owner 维度(西安)生物医疗科技有限公司