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3D printed porous polyether-ether-ketone stent and preparation method and application of stent

A 3D printing, polyetheretherketone technology, applied in medical science, tissue regeneration, prosthesis and other directions, can solve problems such as elastic modulus mismatch, achieve the effect of enhancing integration, improving practical application value, and facilitating growth

Inactive Publication Date: 2021-02-05
RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the prior art, provide a 3D printed porous polyetheretherketone scaffold and its preparation method and application, and solve the problem of insufficient elastic modulus when using non-degradable materials for soft tissue repair at bone joints. matching problem

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  • 3D printed porous polyether-ether-ketone stent and preparation method and application of stent
  • 3D printed porous polyether-ether-ketone stent and preparation method and application of stent

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] refer to figure 1 , the present invention provides a 3D printed porous polyether ether ketone scaffold and its preparation method and application, which are mainly used for repairing damage to soft tissues such as cartilage, bone-cartilage, meniscus and tendon-bone at bone joints. The present invention Polyetheretherketone is used as the 3D printing material, and a porous scaffold is made by 3D printing. Compared with the purely injected polyetheretherketone material, the compressive elastic modulus can be greatly reduced, and it can be compatible with such as cartilage and bone-cartilage. The biomechanical properties of soft tissues such as meniscus, tendon and bone are matched, and the difficulties existing in the application of polyether ether ketone materials in the repair of soft tissue injuries in the prior art are solved. In addi...

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Abstract

The invention relates to a 3D printed porous polyether-ether-ketone stent and a preparation method and application of the stent. The method comprises the following steps: scanning a damaged area at abone joint to obtain corresponding three-dimensional data; conducting modeling according to the obtained three-dimensional data to obtain a filler model capable of filling the damaged area; and performing 3D printing according to the filler model to prepare and obtain the stent. The stent with a porous structure is manufactured by a 3D printing technology, so that the elasticity modulus and hardness of the stent can be reduced, the stent can be matched with biomechanical properties of soft tissues such as cartilage, bone-cartilage, meniscus and tendon bone at bone joints, and the difficulty ofapplying a polyether-ether-ketone material to soft tissue injury repair is solved.

Description

technical field [0001] The invention relates to the technical field of polymer 3D printing, in particular to a 3D printed porous polyetheretherketone scaffold and its preparation method and application. Background technique [0002] Bone joints are connected by a capsule formed by connective tissue between adjacent bones, and the indirect connection between bones is called a bone joint. There is a cavity between the opposite bone surfaces, which contains a small amount of synovial fluid, and its range of motion is relatively large. Every joint has an articular surface, a joint capsule, and a joint cavity, and some joints also have ligaments, articular discs, and menisci and other auxiliary structures. [0003] Soft tissues at bone joints, such as cartilage, bone-cartilage, meniscus and tendon-bone, etc., are often difficult to self-heal after injury due to their unique tissue structure properties. With the development of tissue engineering regenerative medicine, tissue eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/56A61L27/18B33Y10/00B33Y80/00B33Y70/00
CPCA61L27/56A61L27/18B33Y10/00B33Y80/00B33Y70/00A61L2430/34
Inventor 王友苑志国张珏龙腾吕卓诚
Owner RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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