High-toughness super-wear-resistance artificial bone for repairing bone defects and preparation method thereof

An artificial bone, high toughness technology, applied in medical science, prosthesis, coating, etc., can solve the problems of high cost, troublesome revision surgery, etc., and achieve the effect of good biocompatibility

Active Publication Date: 2016-08-03
NANNING YUEYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many scientific research institutes have been researching and improving on this problem, there is still no good solution so far. Therefore, every year, a considerable number of orthopedic cases in various countries in the world undergo revision surgery due to aseptic loosening of artificial bones. Revision surgery is more troublesome and more expensive than primary surgery

Method used

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  • High-toughness super-wear-resistance artificial bone for repairing bone defects and preparation method thereof
  • High-toughness super-wear-resistance artificial bone for repairing bone defects and preparation method thereof
  • High-toughness super-wear-resistance artificial bone for repairing bone defects and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment one: when artificial bone of the present invention is made into artificial bone hip joint figure 1 As shown, the artificial bone hip joint includes an artificial acetabular 1 and an artificial femur 2. The bracket 1.1 of the artificial acetabular 1 is made of a composite material of PEEK resin, barium glass fiber and calcium carbonate whiskers. The barium glass fiber is added for X-ray Development and adjustment adjust the modulus of elasticity, and calcium carbonate whiskers are added to increase wear resistance. The bracket 1.1 of the artificial acetabulum 1 is wrapped with a layer of artificial acetabular dense layer 1.2 formed by sintering hardened bioactive glass ceramics, and an artificial acetabular layer made of bioactive glass ceramics is attached to the surface of the artificial acetabular dense layer 1.2 The porosity layer 1.3 has a porosity of 30-60VOL%, and a cell diameter of 100-1000μm, which facilitates the growth of Harvard's nutrient tubes an...

Embodiment 2

[0034] Embodiment two: when artificial bone of the present invention is made into artificial intramedullary nail image 3 As shown, the bracket of the artificial intramedullary nail 4 is made of a composite material of PEEK resin, barium glass fiber and calcium carbonate whiskers, and the outside of the artificial intramedullary nail 4 is wrapped with a dense layer formed by sintering hardened bioactive glass ceramics. A porous layer made of bioactive glass ceramics is also attached on the surface of the dense layer, with a porosity of 30-60VOL% and a cell diameter of 10-200μm. The outside of the artificial intramedullary nail 4 is provided with trapezoidal screw teeth 4.1, the front slope of the trapezoidal screw teeth is a 60° slope, and the outside of the artificial intramedullary nail 4 is also provided with 6 longitudinal grooves, and the 6 longitudinal grooves are evenly distributed along the outer circumference. Cut off the trapezoidal thread.

[0035] The use of this ...

Embodiment 3

[0036] Embodiment three: when artificial bone of the present invention is made femoral intramedullary nail Figure 5 with Image 6 As shown, the bracket of the femoral intramedullary nail 5 is made of a composite material of PEEK resin, barium glass fiber and calcium carbonate whiskers. The surface of the dense layer is also attached with a porous layer made of bioactive glass ceramics, with a porosity of 30-60VOL% and a cell diameter of 10-200μm. Both ends of the femoral intramedullary nail 5 are provided with pin holes 5.1, and pin holes 5.1 are equipped with pins 5.2.

[0037] The application of this femoral intramedullary nail in femur comminuted fracture is as follows: Figure 7 As shown, the specific operation is: general anesthesia, lie supine on the orthopedic traction bed, with the affected limb at 15°, use C-arm X-ray fluoroscopy, it is best to achieve alignment, find the entrance of the apex of the greater trochanter, and place the guide needle to enter After the...

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Abstract

The invention provides a high-toughness super-wear-resistance artificial bone for repairing bone defects. The artificial bone has a structure of inner and outer layers, wherein the inner layer is an artificial bone rack made of PEEK resin, and is compounded with barium glass fibers and calcium carbonate whiskers; the outer layer the outer layer of the artificial bone rack is coated with a hardened compact layer which is sintered by bio-active glass ceramics; and a porous layer formed by bioactive glass ceramics is attached to the surface of the compact layer. The bonding performing of bioactive glass ceramics with bone is higher than that of hydroxyapatite, and the bonding performance of PEEK resin with bioactive glass ceramics is better than that of carbon fibers with hydroxyapatite, so that the artificial bone has enough mechanical performance and good biocompatibility, and has the mechanical performance, biocompatibility and bone bonding strength is superior than those of a conventional artificial bone product.

Description

technical field [0001] The invention relates to an artificial bone for repairing bone defects and a preparation method thereof, in particular to a high-toughness and super wear-resistant artificial bone for repairing bone defects and a preparation method thereof, belonging to the technical field of orthopedic medical devices. Background technique [0002] Bone tissue defects caused by various traumas, tumors, infections and aging are a serious threat to human health. With the development of science and technology, a series of substitute materials for bone repair and transplantation have been derived in the field of biomaterials. Biomaterials have become a key topic of contemporary research. Human bones are mainly composed of 60% hydroxyapatite and 30% collagen, so hydroxyapatite (HA) has naturally become the focus of research on artificial bone materials. Hydroxyapatite is a bioactive And osteoinductive biomaterials, the current clinical artificial bone materials mostly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/44A61L27/30A61L27/50A61L27/56
Inventor 王玉元王粤凡
Owner NANNING YUEYANG TECH
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