A kind of integrated carbon fiber composite material artificial bone and its preparation method

A technology of composite materials and carbon fiber prefabrication, applied in the field of artificial bone, to achieve the effect of reducing connection parts, good biocompatibility, and convenient use

Active Publication Date: 2019-09-17
HUNAN TANKANG BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects of the existing artificial bone prepared by carbon / carbon composite materials, an object of the present invention is to provide a light weight, good biocompatibility, good mechanical properties, no artifacts in medical images, and especially high elasticity Deformation and good toughness, the integrated carbon fiber composite artificial bone that can realize the partial function and bending shape of cartilage

Method used

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  • A kind of integrated carbon fiber composite material artificial bone and its preparation method
  • A kind of integrated carbon fiber composite material artificial bone and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1) First twist the 12k polyacrylonitrile-based carbon fiber into a carbon fiber rope, then weave five 12k carbon fiber ropes into a carbon fiber braid (about 20mm), reduce the number of carbon fiber ropes, and weave a carbon fiber braid with 3 carbon fiber ropes , and then increase the number of carbon fibers, weave a section of carbon fiber braid (about 20mm) with 5 carbon fiber ropes, and obtain a carbon fiber braid with thick ends and a thin middle. A spring-like carbon fiber prefabricated body is formed on a carbon material mold with a rectangular shape (the cross-sectional size is the same as that of a human rib), and the length of the entire prefabricated body is similar to that of an artificial rib. The thicker section of the carbon fiber braid is punched mechanically as a stitching hole.

[0043] 2) The tubular carbon fiber preform is placed in a natural gas atmosphere, and chemical vapor deposition is carried out at a temperature of 1100°C for 200 hours, and th...

Embodiment 2

[0049] 1) Twist 12k polyacrylonitrile-based carbon fiber and 6k polyacrylonitrile-based carbon fiber into carbon fiber rope respectively, and weave a section of carbon fiber braid (about 20mm) with one 12k polyacrylonitrile-based carbon fiber rope and four 6k polyacrylonitrile-based carbon fiber rope , and then use one 12k polyacrylonitrile-based carbon fiber rope and two 6k carbon fiber braids to braid a section of carbon fiber braid, and wind the thinner end of the carbon fiber braid clockwise in parallel and tightly on a carbon material mold with a D-shaped cross-section (the size of the cross-section Similar to human ribs), forming a spring-like carbon fiber prefabricated body, the length of the entire prefabricated body is similar to the length of artificial ribs. The thicker section of the carbon fiber braid is punched mechanically as a stitching hole.

[0050] 2) The carbon fiber spring-like carbon fiber prefabricated body uses phenolic resin as the impregnating agent, ...

Embodiment 3

[0055] 1) First twist three 3k polyacrylonitrile-based carbon fibers into a carbon fiber rope, then weave five carbon fiber ropes into a carbon fiber braid, and wind one end of the three carbon fiber braids counterclockwise in parallel and tightly around a carbon material mold with a rectangular cross section (The cross-sectional size is similar to that of human ribs), forming a spring-like carbon fiber prefabricated body, and the length of the entire prefabricated body is similar to that of artificial ribs. The thicker section of the carbon fiber braid is punched mechanically as a stitching hole.

[0056] 2) The tubular carbon fiber prefabricated body first uses propylene as a carbon source and nitrogen as a dilution gas, and conducts chemical vapor deposition at a temperature of 900° C. for 120 hours. Then use phenolic resin as impregnant, after vacuum pressure impregnation, curing treatment, carbonization and other densification processes, the main parameters are: impregnat...

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Abstract

An integrated carbon fiber composite artificial bone and preparation method thereof, the artificial bone comprising a carbon fiber composite spring-shaped frame main body and a carbon fiber composite pin member provided at one end or two ends thereof. The preparation method comprises: using carbon fiber as raw material, performing a knitting process to prepare a spring-shaped carbon fiber pre-fab, then by means of densification, high-temperature purification and preparation of a wear-resistant coating layer, obtaining the carbon fiber composite artificial bone. The artificial bone is light, has good biocompatibility and good mechanical performance, and particularly has high elastic deformability and favorable toughness, and can realize the function and curved shape of a soft bone portion, thus having high practical utility.

Description

technical field [0001] The invention relates to an artificial bone, in particular to an integrated carbon fiber composite artificial bone and a method for preparing the carbon fiber composite artificial bone by using carbon fiber weaving technology and profiling technology, and belongs to the field of biomedical materials. Background technique [0002] Bone defects caused by trauma, tumors, infections, and abnormal development have always been a difficult problem for medical scientists. Artificial bone grafting is a common method for the treatment of clinical bone defects. At present, the artificial bone biomaterials clinically used in the field of orthopedics mainly include metal materials, ceramics, and polymer materials, and there are many literature reports in this regard. For example, the patent (application number CN02807099.2) applied by Japan in China discloses a porous ceramic artificial bone material formed by β-calcium phosphate, which can be implanted into bone ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/28A61L27/08A61L27/30
Inventor 谭周建易旭
Owner HUNAN TANKANG BIOTECH CO LTD
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