Polyetheretherketone variable modulus artificial bone prepared by fused deposition 3D printing and preparation method thereof
A 3D printing and fused deposition technology applied in the medical field to reduce stress shielding effects, stimulate growth, and reduce toxicity hazards
Active Publication Date: 2018-10-12
陕西聚康高博医疗科技有限公司
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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
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[0033] The present invention will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific examples described here are only used to explain the present invention, but not to limit the present invention.
[0034] In order to obtain figure 1 As shown in the multi-modulus artificial replacement of the ribs, it is first necessary to obtain the three-dimensional data of the patient's rib diseased part, such as through a CT scan. According to the results of the CT scan, the relevant software (such as MIMICS17.0) is used to construct a skeleton model of the patient's part of the rib and its surroundings. The partial skeleton model of the patient obtained here includes the patient's ribs and surrounding bones and bone tumors. Then, according to the guidance of expert doctors, bone tumor resection is performed on the established three-dimensional model of the patient’s ribs, accompanied by certain bone resection if nec...
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Abstract
The invention discloses a polyetheretherketone variable modulus artificial bone prepared by fused deposition 3D printing and preparation method thereof. The preparation method adopts a fused deposition molding technology as a processing method and uses polyetheretherketone and a derivative thereof as raw materials, thereby preparing a poly modulate artificial bone for bone transplantation surgery.According to the biomechanical environment and geometric features of the prosthesis, the method rationally designs the modulus gradient structure of the prosthesis, so that the prosthesis is more matched with the autologous bone modulus, the stress is more effectively transmitted to the human bone tissue, and the stress shielding is reduced to enhance biocompatibility of the prosthetic implant. The variable modulus artificial bone is integrally formed by adopting the fused deposition 3D printing technology, which realizes the natural transition and the connection of different modulus parts. The biomechanical property of the artificial bone is good, wherein the stress shielding effect of the prosthesis can be effectively avoided. The artificial bone prepared by the method is more in line with and the human bone mechanics environment and the functional requirements.
Description
Technical field [0001] The invention belongs to the field of medical technology, and relates to an artificial prosthesis, and more specifically, to a polyetheretherketone variable modulus artificial bone substitute prepared by fused deposition 3D printing and a preparation method. Background technique [0002] Artificial bone substitutes are widely used in human bone transplantation operations. In order to ensure that the bone substitute has sufficient strength, the bone substitute currently used for bone transplantation is mainly metal. However, the rigidity of metal materials is much greater than that of human bones. After being implanted in the human body, significant stress shielding effects will occur, causing bone atrophy, which in turn triggers the long-term loosening of bone substitutes. Therefore, to avoid the problems caused by stress shielding, the artificial bone substitute implanted in the human body should have similar strength and material mechanical properties to...
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IPC IPC(8): A61F2/28B33Y10/00B33Y80/00
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 陕西聚康高博医疗科技有限公司