Sternum-clavicle integrated piece and manufacture method thereof

A one-piece, sternlock technology, applied in prostheses, medical science, bone implants, etc., can solve problems such as poor mechanical properties, autogenous osteocompatibility, loosening or dislocation of implants, and delayed bone healing, etc., to improve biological Compatibility, improved bonding ability, effects of high tensile modulus

Active Publication Date: 2020-01-14
HUNAN TANKANG BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used sternoclavicular materials in the prior art are replaced with metal materials such as titanium, titanium alloys, nickel-titanium alloys, and stainless steel, which have poor mechanical properties and compatibility with autogenous bone, loosening or dislocation of implants, and local osteoporosis ...

Method used

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  • Sternum-clavicle integrated piece and manufacture method thereof
  • Sternum-clavicle integrated piece and manufacture method thereof
  • Sternum-clavicle integrated piece and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) Twisting two bundles of 6k carbon fibers into a carbon fiber rope with a twist of 200 twists / m; then weaving 24 twisted carbon fiber ropes into a strip-shaped continuous carbon fiber braid. The area density is 30g / m2 by needle needle 2 The carbon fiber nonwoven fabric is riveted on the continuous carbon fiber braid, and the riveting point density is 10 points / cm 2 , to obtain the prefabricated body of carbon fiber sternum slice. Weave 2 bundles of 6k carbon fiber twisted ropes with a twist of 200 twists / m, and 10 twisted carbon fiber ropes into a strip to obtain a prefabricated carbon fiber clavicle strip. Two bundles of 6k carbon fiber twisted ropes with a twist of 200 twists / m are braided into strips, and then spirally wound into a spring through a rod-shaped carbon material mold with one coil to obtain a carbon fiber joint prefabricated body. Extend the carbon fiber at both ends of the joint prefabricated body into the carbon fiber at the connecting end of the c...

Embodiment 2

[0053] 1) Twisting 3 bundles of 12k carbon fibers into a carbon fiber rope with a twist of 300 twists / m; then weaving 12 twisted carbon fiber ropes into a strip-shaped continuous carbon fiber braid. The area density is 20g / m2 by needle needle 2 The carbon fiber non-woven fabric is riveted on both surfaces of the continuous carbon fiber braid to form a sandwich structure, and the riveting point density is 10 points / cm 2 , to obtain the prefabricated body of carbon fiber sternum slice. Three bundles of 12k carbon fiber twisted ropes with a twist of 500 twists / m were braided into a strip to obtain a prefabricated carbon fiber clavicle strip. Three bundles of 12k carbon fiber twisted ropes with a twist of 200 twists / m were braided into a strip, and then spirally wound into a spring through a rod-shaped carbon material mold with 2 coils to obtain a carbon fiber joint prefabricated body. Extend the carbon fiber at both ends of the joint prefabricated body into the carbon fiber at ...

Embodiment 3

[0062] 1) Twisting two bundles of 24k carbon fibers into a carbon fiber rope with a twist of 100 twists / m; then weaving 12 twisted carbon fiber ropes into a strip-shaped continuous carbon fiber braid. The area density is 25g / m2 by needle needle 2 The carbon fiber non-woven fabric is riveted on the two surfaces of the continuous carbon fiber braid to form a sandwich structure, and the riveting point density is 12 points / cm 2 , to obtain the prefabricated body of carbon fiber sternum slice. Two bundles of 24k carbon fiber twisted ropes with a twist of 100 twists / m were braided into a strip to obtain a prefabricated carbon fiber clavicle strip. Two bundles of 24k carbon fiber twisted ropes with a twist of 100 twists / m are braided into strips, and then spirally wound into a spring through a rod-shaped carbon material mold with 2 coils to obtain a carbon fiber joint prefabricated body. Extend the carbon fiber at both ends of the joint prefabricated body into the carbon fiber at t...

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Abstract

The invention discloses a sternum-clavicle integrated piece. The sternum-clavicle integrated piece comprises a sternum plate, a clavicle strip and a joint connecting the sternum plate and the claviclestrip. The sternum plate is in a sheet shape and comprises a layered object formed by twisted carbon fiber rope braid and carbon fiber nonwoven fabric through superposition and carbon matrix and/or silicon carbide arranged between carbon fibers in a filling mode; the clavicle strip is in a strip shape and comprises the twisted carbon fiber rope braid and carbon matrix and/or silicon carbide arranged between the carbon fibers in a filling mode, or comprises the layered object formed by the twisted carbon fiber rope braid and the carbon fiber nonwoven fabric through superposition and carbon matrix and/or silicon carbide arranged between the carbon fibers in a filling mode; and the joint is in a spring shape and comprises a spring body formed by weaving a twisted carbon fiber rope and the carbon matrix and/or silicon carbide arranged between the carbon fibers in a filling mode. The sternum-clavicle integrated piece has the characteristics of light weight, good biocompatibility, good chemical stability, mechanical properties close to human bones, good fatigue, high designability, no artifacts and the like, and is particularly suitable for reconstruction use.

Description

technical field [0001] The invention relates to a chest lock integrated part, in particular to a carbon fiber composite material chest lock integrated part and a preparation method thereof, belonging to the technical field of biomedical materials. Background technique [0002] Due to tumor and trauma, a large area around the sternoclavicular joint was resected. In order to maintain the integrity and function of the chest wall, sternoclavicular joint reconstruction was required. The commonly used sternoclavicular materials in the prior art are replaced with metal materials such as titanium, titanium alloys, nickel-titanium alloys, and stainless steel, which have poor mechanical properties and compatibility with autogenous bone, loosening or dislocation of implants, and local osteoporosis , bone resorption, fracture, delayed bone healing and many other problems. Carbon materials have good biocompatibility and have been applied in many aspects of biomedicine. However, there ar...

Claims

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Application Information

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IPC IPC(8): A61F2/28A61F2/30A61L27/40A61L27/08A61L27/02A61L27/12A61L27/50A61L27/56
CPCA61F2/28A61F2/30771A61F2/30942A61L27/08A61L27/025A61L27/12A61L27/50A61L27/56A61F2002/30546A61F2002/30784A61F2002/30996
Inventor 谭周建
Owner HUNAN TANKANG BIOTECH CO LTD
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