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3D printed hyperelastic artificial bone and preparation method thereof

A 3D printing, super-elastic technology, applied in the field of orthopedic 3D printing, can solve the problems of patient disability, deformity, affect the quality of life and physical and mental health of patients, and achieve the promotion of new bone formation, good compatibility, and surface biological pore treatment. Effect

Inactive Publication Date: 2020-09-11
成都大学附属医院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For a long time, the repair of bone defects caused by trauma or tumors has not been effectively solved, often resulting in disability or deformity of patients, seriously affecting the quality of life and physical and mental health of patients, which is a common clinical treatment problem faced by orthopedics.

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  • 3D printed hyperelastic artificial bone and preparation method thereof
  • 3D printed hyperelastic artificial bone and preparation method thereof
  • 3D printed hyperelastic artificial bone and preparation method thereof

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In describing the present invention, it is to be understood that the terms "center", "centerline", "longitudinal", "transverse", "length", "width", "thickness", "depth", "upper", "Down", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", The orientation or positional relationship indicated by "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is on...

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Abstract

The invention provides a preparation method of a 3D printed hyperelastic artificial bone. The preparation method comprises the following steps of step S1, drying nano-hydroxyapatite powder and polycaprolactone particles in a drying oven at 40 DEG C for 24 hours for later use; step 2, preparing a nano-hydroxyapatite / polycaprolactone blend by adopting a melt blending method; step 3, putting blend particles into a 3D printed wire dedicated extruder to be processed into filaments, wherein the extrusion temperature is 80 DEG C and a 3D printed wire having a diameter of 1.75 + / - 0.2mm is obtained; step 4, designing a bone tissue engineering scaffold model with Solidworks software; and step 5, preparing a nano-hydroxyapatite / polycaprolactone bone tissue engineering scaffold with good mechanical properties and biocompatibility.

Description

technical field [0001] The invention relates to the field of orthopedic 3D printing technology, in particular to a 3D printed superelastic artificial bone and a preparation method thereof. Background technique [0002] Originally, traditional chemical and physical methods were used to manufacture material scaffolds, and the prepared porosity could not control the size, and the physical, chemical and biocompatibility could not meet the clinical needs. Now 3D printing technology can control the porosity of superelastic material bone, so that the printed superelastic bone material tissue has precise porosity to meet clinical needs. However, some low-end 3D printing devices do not have a casing, and their material disks are also exposed, which will accumulate dust and affect the porosity of the printed product. In view of this, we propose a new type of superelastic bone material 3D printing device. [0003] Contributes to bone repair in patients with bone defects. For a long ...

Claims

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Application Information

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IPC IPC(8): B29C64/118B29C64/20B29C64/35B29C64/393B33Y30/00B33Y40/20B33Y50/02A61F2/28A61L27/18A61L27/12A61L27/50A61L27/56A61L27/58
CPCA61F2/28A61F2/30942A61F2/4644A61F2002/30092A61F2002/30985A61F2250/0023A61L27/12A61L27/18A61L27/50A61L27/56A61L27/58A61L2430/02B33Y30/00B33Y40/00B33Y50/02B29C64/118B29C64/20B29C64/35B29C64/393C08L67/04
Inventor 兰海王晓东龙旭东
Owner 成都大学附属医院
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