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Biological membrane capable of inducing bone regeneration and preparation method of biological membrane

A biofilm and bone regeneration technology, applied in tissue regeneration, medical science, prosthesis, etc., can solve the problems of incomplete removal of immunogenic substances and destruction of biological tissue structure, achieving small damage to components and three-dimensional structure, and strong repair ability , The preparation method is simple and effective

Inactive Publication Date: 2020-07-17
山东隽秀生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has great damage to the structure of biological tissues, and there may be a risk of incomplete removal of immunogenic substances

Method used

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  • Biological membrane capable of inducing bone regeneration and preparation method of biological membrane
  • Biological membrane capable of inducing bone regeneration and preparation method of biological membrane

Examples

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Embodiment 1

[0034]Take fresh calf peritoneum tissue, place it at -20°C, freeze and thaw it repeatedly for 3 times, take it out, flatten the peritoneum and place it on an ice pack with the fat side facing up, add 0.5 grams per square centimeter to the fat side Sprinkle sodium bicarbonate powder on the side, scrub to remove fat and excess serosa, and rinse with running water for 12 hours. The above is the pretreatment step. Transfer the membrane into 0.5mol / L EDTA solution, shake at 25°C for 15h, then transfer to 3% NaOH solution, shake at room temperature for 2h, transfer the membrane into 0.5mol / L EDTA solution, 25 Under the condition of ℃, after shaking for 2 hours, transfer to 3% NaOH solution, shake at room temperature for 2 hours, transfer the membrane to 0.1% NaOH solution and shake, and change the NaOH solution 3 times during each shaking for 30 minutes. The treatment after the above pretreatment steps was repeated 3 times. Put the above treated membrane into 0.5%HCl-1%NaCl solutio...

Embodiment 2

[0036] Take fresh porcine peritoneum tissue, place it at -20°C, freeze and thaw it repeatedly for 3 times, take it out, flatten the peritoneum on an ice pack, with the fat side facing up, and add 0.5 grams per square centimeter to the side of the fat side Sprinkle with sodium bicarbonate powder, scrub with your hands to remove fat and excess serosa, and rinse with running water for 12 hours. The above is the pretreatment step. Transfer the membrane into 0.5mol / L EDTA solution, shake at 25°C for 15h, transfer to 2% NaOH solution, shake at room temperature for 2h, transfer the membrane into 0.5mol / L EDTA solution, 25 Under the condition of ℃, after shaking for 2 hours, transfer to 2% NaOH solution, shake at room temperature for 2 hours, transfer the film to 0.5% NaOH solution and shake, and change the NaOH solution 3 times during the period, shaking for 30 minutes each time. The treatment after the above pretreatment steps was repeated 3 times. Put the above treated membrane in...

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Abstract

The invention discloses a biological membrane capable of inducing bone regeneration and a preparation method of the biological membrane. The biological membrane is obtained by removing a series of immunogen substances from mammal peritoneum. The preparation method comprises the following steps: performing pretreatment: performing repeated freezing and thawing, and performing scrubbing by using sodium bicarbonate powder to remove fat and redundant serosas; removing the immunogenic substances: performing repeated shaking by using an EDTA solution, an alkaline solution and an acid solution in sequence to remove the immunogenic substances; performing neutralizing: neutralizing the membrane by using a sodium bicarbonate solution until the pH value is neutral, and performing cleaning; and performing sterilizing: performing cobalt-60 sterilizing for standby application. The biological membrane capable of inducing bone regeneration provided by the invention has a smooth surface / hair surface double-sided structure, the tissue barrier effect and the bone defect tissue regeneration promoting function can be exerted at the same time, the biological membrane obtained after treatment eliminatesimmunogenicity of heterologous animal peritoneal tissue, activity of tissue extracellular matrix mechanisms and components is reserved to the maximum extent, and structure and function bases are provided for inducing bone regeneration. The preparation process is simple, easy to implement and environmentally friendly, and harmless emission of waste reagents can be achieved through inorganic acid-base neutralization.

Description

technical field [0001] The invention relates to the preparation of human tissue regenerative medical materials, in particular to a biofilm capable of inducing bone regeneration and a new preparation method thereof, belonging to the field of medical biomaterials. Background technique [0002] Membrane-guided bone tissue regeneration technology is a new biological concept, which was originally produced in the treatment of periodontal disease. Its theoretical basis is that in the process of bone trauma repair, different tissue cells grow and migrate to the wound at different speeds. A mechanical barrier that prevents the growth of other tissue cells, thereby providing a guiding space for the growth of bone cells, enhancing the regeneration ability of bone tissue, accelerating the metabolism of bone tissue, effectively avoiding the fibrous healing of bone defects, and promoting bone healing, so as to achieve the ideal The purpose of tissue regeneration and repair. [0003] The ...

Claims

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Application Information

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IPC IPC(8): A61L27/36A61L27/58
CPCA61L27/3604A61L27/3687A61L27/3691A61L27/3633A61L27/365A61L27/58A61L2430/02
Inventor 高秀岩郑红霞姜红任孝敏董平格王京燕
Owner 山东隽秀生物科技股份有限公司