Double-layered foaming hydrocolloid dressing and preparation method thereof

A technology of foaming water and hydrocolloid, which is applied in the medical field, can solve the problems of peripheral skin damage, no antibacterial properties, and low absorption efficiency, etc., and achieve the effect of reducing anti-inflammatory effects, reducing scar formation, and promoting wound healing

Active Publication Date: 2015-01-28
GUANGDONG TAIBAO MEDICAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional hydrocolloid dressings generally cannot be used for wounds with a lot of exudate, because the absorption efficiency of traditional hydrocolloid dressings for exudate is not very fast, so that it is too late to absorb completely when dealing with wounds with a lot of exudate, causing exu...

Method used

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  • Double-layered foaming hydrocolloid dressing and preparation method thereof
  • Double-layered foaming hydrocolloid dressing and preparation method thereof
  • Double-layered foaming hydrocolloid dressing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The foamed hydrocolloid is prepared as follows: Weigh 17.5g of SIS copolymer, 8.1g of polyisobutylene, 10.9g of rosin pentaerythritol ester, 1.3g of antioxidants and 17.4g of mineral oil and add them to a blade mixer for banburying at 115°C. 2h, then lower the temperature to 100℃ and banbury for 30min to obtain a liquid mixture. Then add 20g sodium carboxymethylcellulose, 8g cross-linked sodium carboxymethylcellulose and 0.05g silver nitrate into it and keep it at 100℃ Stir for 30 min to obtain a homogeneous mixture. After the last process is over, remove the mixture from the stirrer to cool down. At the same time, add 15g of ethylene propylene rubber to the stirrer and banbury for 10 minutes, then add the cooled mixture and stir with it, and banbury at 115°C for 30 minutes or Until a uniform hydrocolloid is formed.

[0023] Then the above-mentioned hydrocolloid glue slurry was stirred in an internal mixer at 80°C for 30 minutes, and sodium bicarbonate: citric acid = 2; 1...

Embodiment 2

[0034] The foamed hydrocolloid is prepared as follows: Weigh 17.5g of SIS copolymer, 8.1g of polyisobutylene, 10.9g of rosin pentaerythritol ester, 1.3g of antioxidants and 17.4g of mineral oil and add them to a blade mixer for banburying at 115°C. 2h, then cool down to 100℃ and banbury for 30min to obtain a liquid mixture, then add 22g sodium carboxymethylcellulose, 10g cross-linked sodium carboxymethylcellulose and 0.10g silver nitrate into it, keep it at 100℃ Stir for 30 min to obtain a homogeneous mixture. After the last process is over, remove the mixture from the stirrer to cool down. At the same time, add 15g of ethylene propylene rubber to the stirrer and banbury for 10 minutes, then add the cooled mixture and stir with it, and banbury at 115°C for 30 minutes or Until a uniform hydrocolloid is formed.

[0035] Then the above-mentioned hydrocolloid glue slurry was stirred in an internal mixer at 80°C for 30 minutes, and sodium bicarbonate: citric acid = 2; 1 foaming agent...

Embodiment 3

[0046] The foamed hydrocolloid is prepared as follows: Weigh 17.5g of SIS copolymer, 8.1g of polyisobutylene, 10.9g of rosin pentaerythritol ester, 1.3g of antioxidants and 17.4g of mineral oil and add them to a blade mixer for banburying at 115°C. 2h, then cool to 100℃ and banbury for 30min to obtain a liquid mixture, then add 23g of sodium carboxymethylcellulose, 9g of cross-linked sodium carboxymethylcellulose and 0.5g of silver nitrate into it and keep it at 100℃ Stir for 30 min to obtain a homogeneous mixture. After the last process is over, remove the mixture from the stirrer to cool down. At the same time, add 15g of ethylene propylene rubber to the stirrer and banbury for 10 minutes, then add the cooled mixture and stir with it, and banbury at 115°C for 30 minutes or Until a uniform hydrocolloid is formed.

[0047] Then the above-mentioned hydrocolloid glue slurry was stirred in an internal mixer at 80°C for 30 minutes, and sodium bicarbonate: citric acid = 2; 1 foaming ...

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Abstract

The invention provides double-layered foaming hydrocolloid dressing and a preparation method thereof. The double-layered foaming hydrocolloid dressing comprises a contact layer, a moisture absorption layer and a backing layer; the moisture absorption layer is arranged on the backing layer; the contact layer is arranged on the moisture absorption layer and made of foaming hydrocolloid; the foaming hydrocolloid comprises the following components: polyisobutene, sodium carboxymethylcellulose, croscarmellose sodium, SIS copolymers, pentalyn, antioxidant, ethylene propylene rubber, silver nitrate and mineral oil; the moisture absorption layer is made of hydrocolloid which comprises polyisobutene, sodium carboxymethylcellulose, croscarmellose sodium, SIS copolymers, pentalyn, antioxidant, ethylene propylene rubber and mineral oil. The foaming hydrocolloid layer provided by the invention can accelerate absorption of seepage and form a tendency of vertical conduction and has the effects of resisting bacteria, promoting wound healing in wet environment, reducing the probability of scar formation and eliminating inflammation.

Description

technical field [0001] The invention relates to the field of medical technology, more specifically, to a double-layer foaming hydrocolloid dressing and a preparation method thereof. Background technique [0002] Under the precursor of the moisture healing theory, modern wound care requires dressings with high hygroscopicity and moisture retention, so that dressings are conducive to wound healing. Dressings with this function mainly include chitosan wound dressings, alginate wound dressings, hydrocolloid wound dressings and hydrogel wound dressings. [0003] Compared with the other dressings mentioned above, hydrocolloid wound dressings perform better in terms of self-adhesiveness, moisture retention and water absorption. [0004] Traditional hydrocolloid dressings generally cannot be used for wounds with a lot of exudate, because the absorption efficiency of traditional hydrocolloid dressings for exudate is not very fast, so that when dealing with wounds with a lot of exuda...

Claims

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Application Information

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IPC IPC(8): A61L15/60A61L15/24A61L15/28A61L15/34A61L15/30A61L15/18A61L15/42A61L15/44
Inventor 卢亢陈泽楚卢钊浩陈锦涛
Owner GUANGDONG TAIBAO MEDICAL SCI TECH
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