A kind of medical hygiene bandage and preparation method thereof

A hygienic and medical technology, applied in the field of medical materials, can solve the problems of unfavorable wound repair and high production cost, and achieve the effect of promoting wound healing, convenient clinical use, and good biocompatibility

Active Publication Date: 2018-08-31
ZHEJIANG SUNDOC PHARMA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among the existing products, in terms of sterility protection, most of them are isolated from the outside world. Once bacteria invade, it is not conducive to wound repair; some of them are artificially added chemical antibacterial drugs, which have certain side effects and high production costs.

Method used

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  • A kind of medical hygiene bandage and preparation method thereof
  • A kind of medical hygiene bandage and preparation method thereof
  • A kind of medical hygiene bandage and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see figure 1 , a kind of medical health care wound dressing, is made up of base layer 1, protects wound layer 2 and two peeling layers 3, and protects wound layer 2 to be closely attached to the central position of one side of base layer 1, and two peeling layers 3 One end is partially overlapped and covered on the wound-protecting layer 2 to protect the wound-protecting layer. The other ends of the two peeling layers 3 are bonded to the two ends of the base layer 1 for easy peeling during use. The base layer 1 and the wound-protecting layer 2. A corrugated non-woven medical air-permeable adhesive tape with a glue-carrying layer on the surface of one side to be fitted, the wound-protecting layer 2 is a silk fibroin porous biological material prepared by the method of the present invention, and the peeling layer 3 is a release paper, such as glassine paper .

Embodiment 2

[0021] Embodiment 2 The preparation method of the wound protection layer in the product of the present invention, the main steps are:

[0022] (1) Raw silk degumming: configure 1% soapy water washing solution, which contains NaHCO with a mass concentration of 0.5% 3 , Soak raw silk in it, the weight ratio of silk to solution is 1:25, the soaking temperature is 70°C, the soaking time is 40 minutes, washed with deionized water, the water temperature is 70°C, soaked at constant temperature for 40 minutes, loosen the silk, and air-dry at room temperature, to spare;

[0023] (2) Preparation of silk fibroin porous biological material: The material obtained in step (1) is roughly opened; the speed is 0.20 and the feeding transmission method is mixed; the speed is 0.20 fine opening; through the vacuum transfer box with a metering pump Transfer, the conditions for controlling the vacuum transfer box are: main cylinder speed: 20Hz, doffer speed: 20Hz, messy speed: 14Hz; double-layer ca...

Embodiment 3

[0026] Embodiment 3 The preparation method of the wound protection layer in the product of the present invention, the main steps are:

[0027] (1) Raw silk degumming: configure 1% soapy water washing solution, which contains NaHCO with a mass concentration of 0.5% 3 , Soak raw silk in it, the weight ratio of silk to solution is 1:25, the soaking temperature is 90°C, the soaking time is 60 minutes, washed with deionized water, the water temperature is 90°C, soaked at constant temperature for 60 minutes, loosen the silk, and air-dry at room temperature, to spare;

[0028] (2) Preparation of silk fibroin porous biological material: The material obtained in step (1) is roughly opened; the speed is 0.40Hz feeding and transmission mode mixed with cotton; the speed is 0.40Hz fine opening; through the vacuum with metering pump Transfer box transfer, the conditions for controlling the vacuum transfer box are: the main cylinder speed is 30Hz, the doffer speed is 30Hz, and the messy spe...

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Abstract

The invention provides a medical healthy wound-protecting plaster, comprising a substrate layer, a wound-protecting layer and two release layers, wherein the wound-protecting layer is tightly attached to the center position at one side of the substrate layer; the release layers cover the wound-protecting layer in an overlapping manner; the wound-protecting layer is a porous silk fibroin biomaterial prepared by adopting a specific method; the wound-protecting layer is prepared by a combined method of opening, carding, lapping and spunlace. The wound-protecting plaster provided by the invention belongs to a natural biological material wound-protecting application product, has good biocompatibility, is applicable to various wounds, good in air permeability and flexible to apply, and can be effectively used for resisting bacteria, diminishing inflammation, sterilizing and stopping bleeding, and a favorable growth environment is provided to the wound.

Description

technical field [0001] The invention belongs to the field of medical materials, and relates to a novel medical sanitary bandage and a preparation method. The main component is silk fibroin bioporous material obtained after degumming raw silk. It is suitable for wound protection of various wounds. Because of its antibacterial effect, it can inhibit the growth of bacteria while protecting the wound surface, which is beneficial to wound repair. Background technique [0002] One of the most important items in wound care is to ensure that the wound is repaired in a sterile environment as much as possible. [0003] The wound protection products in the existing medical hygiene materials mainly include: medical cotton balls, cotton swabs, bandages, band-aids, first aid kits, absorbent cotton, absorbent gauze, gauze pads, etc., generally there are two types: non-sterile and sterile. [0004] Among them, the medical gauze packaged in a sterile way can be used directly, while the gauz...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A61L15/32A61L15/44A61L15/42D04H1/4266D04H1/74D04H1/492
Inventor李大为
OwnerZHEJIANG SUNDOC PHARMA SCI & TECH CO LTD