Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of medical composite antibacterial dressing and preparation method thereof

A composite antibacterial and antibacterial layer technology, which is applied in medical science, bandages, absorbent pads, etc., can solve secondary damage and other problems, and achieve the effects of increasing binding force, increasing air permeability, and significant hemostatic and bactericidal effects

Active Publication Date: 2021-06-11
ZHENGZHOU INST OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utility model is waterproof and breathable, the wound is visible, can prevent infection, and is beneficial to wound healing; however, after the structure absorbs the wound exudate, the solution sticks to the wound surface, causing secondary damage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of medical composite antibacterial dressing and preparation method thereof
  • A kind of medical composite antibacterial dressing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A medical composite antibacterial dressing, comprising an antibacterial layer 1 and a gauze layer 2 from inside to outside, the gauze layer is 2-3 layers of cotton gauze, the present embodiment is 2 layers, the bottom of the antibacterial layer 1 is evenly provided with protrusions 3, the protrusions 3 is water-absorbing gel, and its thickness is 1-1.5mm.

[0029] Among them, the water-absorbing gel is prepared from the following raw materials: 20 parts of sodium alginate, 15 parts of dimethylaminoethyl acrylate, 10 parts of polyvinyl alcohol, 5 parts of tetraethyl orthosilicate, 8 parts of polyalumina, sodium bicarbonate 3 parts, 5 parts of bentonite, 9 parts of N,N-methylenebisacrylamide, 0.2 parts of sodium persulfate.

[0030] Among them, the water-absorbing gel is prepared by the following steps: adding sodium alginate, dimethylaminoethyl acrylate, and polyvinyl alcohol to 10 times the weight of water and heating to dissolve, then adding tetraethyl orthosilicate, p...

Embodiment 2

[0037] The structure of embodiment 2 is the same as that of embodiment 1, the difference is:

[0038] Among them, the water-absorbing gel is prepared from the following raw materials: 22 parts of sodium alginate, 14 parts of dimethylaminoethyl acrylate, 11 parts of polyvinyl alcohol, 5.5 parts of ethyl orthosilicate, 7 parts of polyalumina, sodium bicarbonate 3 parts, 6 parts of bentonite, 8 parts of N, N-methylenebisacrylamide, 0.25 parts of sodium persulfate.

[0039] Among them, the water-absorbing gel is prepared by the following steps: adding sodium alginate, dimethylaminoethyl acrylate, and polyvinyl alcohol to 10 times the weight of water and heating to dissolve, then adding tetraethyl orthosilicate, polyaluminum oxide, carbonic acid Stir sodium hydrogen and bentonite evenly, then add N,N-methylenebisacrylamide and sodium persulfate, stir evenly, and cross-link at 60°C for 9 hours to obtain the product.

[0040] The antibacterial layer 1 is prepared from the following ...

Embodiment 3

[0046] The structure of embodiment 3 is the same as that of embodiment 1, the difference is:

[0047] Among them, the water-absorbing gel is prepared from the following raw materials: 24 parts of sodium alginate, 13 parts of dimethylaminoethyl acrylate, 12 parts of polyvinyl alcohol, 6 parts of tetraethyl orthosilicate, 6 parts of polyalumina, sodium bicarbonate 4 parts, 6 parts of bentonite, 7 parts of N, N-methylenebisacrylamide, 0.3 parts of sodium persulfate.

[0048] Among them, the water-absorbing gel is prepared by the following steps: adding sodium alginate, dimethylaminoethyl acrylate, and polyvinyl alcohol to 10 times the weight of water and heating to dissolve, then adding tetraethyl orthosilicate, polyaluminum oxide, carbonic acid Stir sodium hydrogen and bentonite evenly, then add N,N-methylenebisacrylamide and sodium persulfate, stir evenly, and cross-link at 65°C for 8 hours to obtain the product.

[0049] The antibacterial layer 1 is prepared from the followin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention discloses a medical composite antibacterial dressing, which belongs to the technical field of biomedical materials. It includes an antibacterial layer and a gauze layer from the inside out. The bottom of the antibacterial layer is uniformly provided with protrusions, and the protrusions are water-absorbing gels. The water-absorbing gel is prepared from the following raw materials: 20-30 parts of sodium alginate, 10-15 parts of dimethylaminoethyl acrylate, 10-15 parts of polyvinyl alcohol, 5-8 parts of tetraethyl silicate, polymerized oxidation 5-8 parts of aluminum, 3-6 parts of sodium bicarbonate, 5-8 parts of bentonite, 4-9 parts of N, N-methylene bisacrylamide, 0.2-0.5 parts of sodium persulfate. The special properties of the dressing can prevent it from sticking to the wound, prevent wound tissue adhesion, and have significant hemostatic and bactericidal effects, thereby speeding up wound healing.

Description

technical field [0001] The invention relates to a biomedical material, in particular to a medical composite antibacterial dressing and a preparation method thereof. Background technique [0002] In the process of traumatic surgery, it is necessary to use a large number of antibacterial dressings, mainly cotton gauze. Its main function is to stop bleeding, sterilize, and absorb exudate from the wound surface, but its disadvantage is that it is easy to stick to the wound surface and cause damage again. Moreover, the gauze has strong air permeability, and the probability of bacterial infection is relatively high. In addition, the usage is relatively large and needs to be replaced frequently; in order to improve the above shortcomings, synthetic polymer materials are used to replace the existing dressings in the prior art. [0003] Chinese Patent Publication No. CN105107009A discloses a medical dressing and a preparation method thereof. The medical dressing includes bacterial ce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/18A61L15/24A61L15/28A61L15/40A61L15/42A61L15/44A61L15/46
CPCA61L15/18A61L15/24A61L15/28A61L15/40A61L15/42A61L15/425A61L15/44A61L15/46A61L2300/102A61L2300/104A61L2300/30A61L2300/404A61L2300/41C08L5/04C08L5/08C08L29/04C08L33/20
Inventor 郭晓琴李钦奎王岚
Owner ZHENGZHOU INST OF TECH