Annular elastic ring for medical loop ligation device

A technology of elastic rings and ligation devices, applied in the field of annular elastic rings of medical ligation devices, can solve problems such as hindering the application and development of silicone rubber, poor mechanical strength, etc., to overcome poor mechanical strength, fast tissue shedding, and short ligation time Effect

Active Publication Date: 2016-03-30
GUANGZHOU SOFTLINK MEDICAL INNOVATION CO LTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its poor mechanical strength hinders the further application and development of silicone rubber as the annular elastic ring of hemorrhoid ligation device

Method used

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  • Annular elastic ring for medical loop ligation device
  • Annular elastic ring for medical loop ligation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] An annular elastic ring for a medical ligation device, including the following components in parts by mass: 100 parts of methyl vinyl silicone rubber, 2 parts of glycerin, 20 parts of precipitated white carbon black, and a coupling agent KH with a mass of 0.8% of white carbon black -560, 1 part of tert-butyl peroxybenzoate.

[0064] Its preparation method comprises the following steps:

[0065]Weigh the above raw materials according to the quality, and mix the medical grade methyl vinyl silicone rubber on the open mill; add precipitated silica, coupling agent KH-560 and glycerin in sequence, mix evenly, and the roller rotates at a low speed, controlled The roller temperature is below 40°C; the obtained product is thinly passed 4-8 times, and then placed in a 60°C oven for heat treatment for 12 hours. After the heat treatment of the silicone rubber, add 1 part of tert-butyl peroxybenzoate and knead evenly. The resulting product is thinly passed 5-8 times and parked over...

Embodiment 2

[0067] The annular elastic ring of the medical ligation device includes the following components in parts by mass: 100 parts of methyl vinyl phenyl silicone rubber, 5 parts of glycerin, 50 parts of precipitated white carbon black, and the mass is 2% of white carbon black. Agent Si69, 0.5 parts of di-tert-butyl peroxide.

[0068] Its preparation method comprises the following steps:

[0069] Weigh the above-mentioned raw materials according to the quality, and mix the medical grade methyl vinyl phenyl silicone rubber on an open mill; add precipitated silica, coupling agent Si69 and glycerin in sequence, first mix evenly on the open mill, roll The cylinder rotates at a low speed, and the temperature of the roller is controlled below 40°C. The obtained product is thinly passed 4-8 times, and then put into a 60°C oven for heat treatment for 12 hours. Add 0.5 parts of di-tert-butyl peroxide to the heat-treated silicone rubber, mix it evenly, pass through the product 5-8 times, and...

Embodiment 3

[0071] The annular elastic ring of the medical ligation device includes the following components in parts by mass: 100 parts of phenylene silicone rubber, 5 parts of glycerin, 30 parts of meteorological method hydrophilic white carbon black, and titanic acid with a mass of 1.5% white carbon black Ester coupling agent, 0.8 parts of dicumyl peroxide.

[0072] Its preparation method comprises the following steps:

[0073] Weigh the above raw materials according to the mass, and mix the medical grade phenylene silicone rubber on the open mill; add meteorological method hydrophilic white carbon black, titanate coupling agent and glycerin in sequence, and mix evenly on the open mill first , the roller rotates at a low speed, and the temperature of the roller is controlled below 40°C. The obtained product is thinly passed 4-8 times, and then put into a 60°C oven for heat treatment for 16 hours. After the heat treatment, add 0.8 parts of dicumyl peroxide and mix evenly for the heat-t...

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PUM

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Abstract

The invention discloses an annular elastic ring for a medical loop ligation device. The preparation method comprises the following steps: weighing, by mass, 100 parts of medical silicone rubber, 1 to 10 parts of glycerin, 20 to 80 parts of white carbon black and a coupling agent weighing 0 to 2% of the mass of the white carbon black; uniformly mixing the above-mentioned materials on an open mill and putting the obtained mixture in a baking oven for heat treatment; and remilling silicone rubber having undergone heat treatment, adding 0.5 to 5 parts of a cross-linking agent, carrying out uniform mixing, and then successively carrying out hot press molding in a flat vulcanizer and secondary sulfuration in an air blast drying box so as to obtain the annular elastic ring for the medical loop ligation device. The annular elastic ring for the medical loop ligation device overcomes the defect of poor mechanical strength of silicone rubber and provides a nontoxic and harmless annular elastic ring for loop ligation treatment of hemorrhoids. Meanwhile, the annular elastic ring guarantees firm loop ligation, short loop ligation time, a fast tissue shedding speed and no occurrence of infection and inflammations. The preparation method is simple in molding, has low cost and is suitable for large-scale promotion and application.

Description

technical field [0001] The invention relates to an annular elastic ring of a medical ligation device. Background technique [0002] The silicone rubber molecule is a chain structure formed by Si-O (silicon-oxygen) bonds, and its main component is linear polysiloxane. The Si-O-Si bond constitutes the main chain of the macromolecule, and the side chains are generally low-polar or non-polar groups, so the polarity of the entire macromolecule is very low, which makes the silicone rubber exhibit hydrophobicity, oxidation resistance and anti-oxidation properties. Aging. It can be used as a medical device, artificial organ, drug sustained-release system, etc., and has good biocompatibility with the human body. [0003] Hemorrhoids are a very common clinical anorectal disease. Although they are not fatal, they can occur at any time and affect people's lives and health. With the development of medical technology, the treatment means of hemorrhoids are becoming more and more mature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08K13/02C08K3/36C08K5/053C08K5/14
CPCC08K3/36C08K5/053C08K5/14C08K13/02C08L83/04
Inventor 阮镇祥任力刘卅高廷文刘三强
Owner GUANGZHOU SOFTLINK MEDICAL INNOVATION CO LTO
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