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Special-shaped hydrogel functional dressing and preparation method thereof

A hydrogel and functional technology, applied in the direction of dressings, viscous dressings, sports accessories, etc., can solve the problems of massage therapy that cannot perform functional exercises in time, hand function rehabilitation and auxiliary treatment, hand wounds and equipment adhesion, etc., to achieve The effect of preventing hand joint stiffness, reducing scar hyperplasia, and promoting wound healing

Active Publication Date: 2015-01-07
长春吉原生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since massage can only be performed after the wound has healed to a certain extent, passive massage therapy cannot perform functional exercises in time
At present, the rehabilitation equipment for the hand is mainly elastic gloves, elastic balls and other similar products, and these equipment are mainly made of plastic or silicone. Due to their dry surface, if they are directly used on the hand with unhealed wounds, it will cause hand damage. Adhesion occurs between the wound surface of the hand and the device, causing secondary damage to the wound surface, so it can only be used after the skin is completely healed, and cannot be used for functional rehabilitation of the hand in time

Method used

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  • Special-shaped hydrogel functional dressing and preparation method thereof
  • Special-shaped hydrogel functional dressing and preparation method thereof

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preparation example Construction

[0030] The preparation method of the above-mentioned special-shaped hydrogel functional dressing is as follows: inject the aqueous solution of hydrophilic high molecular polymer with a mass percentage of 5% to 70% into the mold, and make it by physical cross-linking method and / or chemical cross-linking method The shaped hydrogel functional dressing.

[0031] The physical crosslinking method is any one or a combination of two or more of freezing treatment, freezing partial dehydration, repeated freezing and melting, and freezing low temperature crystallization.

[0032] The chemical crosslinking method is any one or a combination of two or more of thermal polymerization crosslinking, initiator-induced crosslinking, photopolymerization crosslinking, radiation crosslinking, plasma-induced polymerization crosslinking and electrolytic polymerization crosslinking use.

Embodiment 1

[0035] According to the mass fraction of 10% polyvinyl alcohol (PVA), 2% gelatin aqueous solution is injected into a hemispherical mold with a diameter of 5 cm and a smooth surface, and the cobalt 60 radioactive source is subjected to radiation process with a radiation dose of 15 kgy. Special-shaped hydrogel functional dressing for burns and scalds on hands.

Embodiment 2

[0037] According to the mass fraction of 10% polyethylene glycol (PEG), 5% polyvinylpyrrolidone (PVP) aqueous solution is injected into the diameter of 5cm, and the surface is uniformly divided into 15 hemispherical convex molds with a diameter of 2mm, which are fixed and placed. Freeze in a freezer to -18°C for 20 hours. After freezing, place it indoors to raise it to room temperature, and then place it with a cobalt source for radiation treatment. The radiation dose is 15kgy. Shaped hydrogel functional dressing.

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Abstract

The invention relates to special-shaped hydrogel functional dressing and a preparation method thereof. The special-shaped hydrogel functional dressing comprises a hydrogel functional dressing body, wherein the hydrogel functional dressing body is sphere or hemisphere-shaped; the surface of the hydrogel functional dressing body is smooth or a bulge is formed on the surface of the hydrogel functional dressing body. The preparation method comprises the following steps: injecting hydrophilic high-molecular polymer aqueous solution with the mass content percentage being 5 to 7 percent into a mold, and preparing the special-shaped hydrogel functional dressing through a physical crosslinking method or a chemical crosslinking method. The special-shaped hydrogel functional dressing has good biocompatibility, and is non-irritative and non-sensitized to skin; the dressing has good transparency, and the condition of wound healing can be directly observed through the dressing; the dressing can provide wet environment for promoting wound healing, and does not adhere the wound, reduces scar hyperplasia and accelerates wound healing.

Description

technical field [0001] The invention relates to a special-shaped hydrogel functional dressing and a preparation method thereof. Background technique [0002] Among all kinds of burns and scalds, injuries to the hands account for a large proportion. Since the muscles and nerve tissues of the hands are the most delicate, the scars and scar contractures caused by burns and scalds can affect the shape of the hands in mild cases, resulting in an ugly appearance , in severe cases, it can completely lose its function. The wound healing process of hand burns is also the process of forming new tissue and epidermis growth on the wound surface. It has been clinically proven that timely rehabilitation and adjuvant treatment during the wound healing process can most effectively reduce scars, tissue adhesions and muscle contractures. At present, there are no domestic reports of wound care products that are suitable for the wound care of hand burns and can realize functional rehabilitatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/10A61L15/42A61L15/24A61L15/32A61L15/26A61L15/28A61F13/02A63B23/16
Inventor 于家傲余航于春暖王栗王靖哲宋青青周志
Owner 长春吉原生物科技有限公司
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