Non-stick dressing and preparation method thereof

A technology of adhesive dressing and polymer materials, which is applied in the field of medical hygiene/nanomaterials, can solve the problems of decreased water absorption and liquid absorption speed of dressings, affecting the speed of wound healing, and easy residue of oily substances, so as to reduce the adhesion of dressings and wounds , Improve the absorption capacity of exudate and reduce the pain of dressing change

Pending Publication Date: 2022-01-11
长沙海润生物技术有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Medical cotton base materials (such as medical absorbent cotton gauze, surgical gauze dressing, absorbent cotton non-woven fabric) are non-toxic, non-irritating, and have good biocompatibility, and are widely used in medical dressings. For scalded wounds, this kind of dressing is easy to stick to the wound, and changing the dressing is easy to cause pain to the patient and cause secondary damage to the wound
[0003] At present, in order to overcome the above problems, the dressing is usually soaked in liquid paraffin oil or medical vaseline (such as medical vaseline gauze) and other grease-based hydrophobic substances to reduce wound adhesion, but soaking such oily substances will make the dressing water-absorbent. (Ability to absorb exudate) and the speed of liquid absorption is reduced. At the same time, oily substances are easy to remain on the wound surface, making it difficult to clean and clean, and also affect the speed of wound healing.

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
  • Non-stick dressing and preparation method thereof
  • Non-stick dressing and preparation method thereof
  • Non-stick dressing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A non-stick dressing is composed of pure cotton non-woven fabric and a hydrophilic anti-adhesion layer, and the hydrophilic anti-adhesion layer is composed of PVP (k90) and PU. The preparation method of this non-stick dressing is as follows:

[0039] (1) Preparation of superhydrophilic polymer solution: Add 2g of PVP (k90) to a mixed solvent of 30mL diacetone alcohol and 10mL butanone measured in advance and stir to dissolve it to obtain solution A. Add 2g PU to the pre-measured Stir in a mixed solvent of 30mL diacetone alcohol and 10mL butanone to dissolve it to obtain solution B; then mix the dissolved A and B solutions at a volume of 2:1 and mix well to form a superhydrophilic polymer solution;

[0040] (2) Substrate preparation and treatment: put the pure cotton non-woven fabric material into a vacuum drying oven, and vacuum dry for 30 minutes;

[0041] (3) Substrate coating treatment: soak the treated gauze in the superhydrophilic polymer solution, press to remov...

Embodiment 2

[0044] A non-stick dressing is composed of ordinary medical gauze and a hydrophilic anti-adhesion layer, and the hydrophilic anti-adhesion layer is composed of PEGMn4000. The preparation method of this non-stick dressing is as follows:

[0045] (1) Preparation of super-hydrophilic polymer solution: Take 2 g of PEG Mn4000 and add it into 500 mL of purified water and stir for 1 h to fully dissolve;

[0046] (2) Substrate preparation and treatment: ordinary medical gauze material, put it in a vacuum drying oven, dry it in vacuum for 30 minutes, take out the gauze, put it into a plasma cleaning machine, and plasma treat both sides for 3 minutes each (you can increase the amount of gauze and hydrophilic waterproof the binding effect of the adhesive layer);

[0047] (3) The treated yarn is placed in the superhydrophilic polymer solution and immersed for 30 minutes, then taken out, taken out and dried at 100°C to obtain the modified gauze;

[0048] (4) product, package, and sterilize...

Embodiment 3

[0050] A non-stick dressing is composed of medical absorbent cotton gauze and a hydrophilic anti-adhesion layer, and the hydrophilic anti-adhesion layer is composed of PVP and chlorhexidine acetate. The preparation method of this non-stick dressing is as follows:

[0051] (1) Preparation of superhydrophilic polymer solution: 3g of PVP (k90), 0.05g of chlorhexidine acetate were dissolved in 5000mL of alcohol;

[0052] (2) Substrate preparation and treatment: put medical absorbent cotton gauze into a vacuum drying oven, and vacuum dry for 30 minutes;

[0053] (3) Substrate coating treatment: soak the treated gauze in the superhydrophilic polymer solution, press to remove excess liquid, and dry to obtain the modified gauze;

[0054] (4) product, package, and sterilize to obtain a non-stick dressing.

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
concentrationaaaaaaaaaa
Login to view more

Abstract

The invention discloses a non-stick dressing. The non-stick dressing comprises a medical cotton base material and a hydrophilic anti-adhesion layer, the hydrophilic anti-adhesion layer is composed of a super-hydrophilic high polymer material, and the super-hydrophilic high polymer material comprises any one or more of polyvinylpyrrolidone, polyurethane, polyethylene glycol and polyvinylpyrrolidone. The non-stick dressing not only has hydrophilic and anti-adhesion effects, but also can improve the seepage absorption capacity of a medical cotton base material, reduce the adhesion of the dressing and the wound surface and relieve the dressing change pain of a patient, and meanwhile, no accidental substances are left on the wound and are easy to clean. The invention also discloses a preparation method of the non-stick dressing. The method comprises the following steps: firstly, dissolving the super-hydrophilic polymer material in a solvent to obtain a super-hydrophilic polymer solution; then drying the medical cotton base material, and soaking the medical cotton base material in the super-hydrophilic polymer solution; and after soaking is completed, squeezing to remove redundant liquid, airing or drying, and sterilizing to obtain the non-stick dressing. The method is simple to operate, low in cost, environmentally friendly and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of medical hygiene / nanometer materials, and in particular relates to a non-stick dressing and a preparation method. Background technique [0002] Medical cotton base materials (such as medical absorbent cotton gauze, surgical gauze dressing, absorbent cotton non-woven fabric) are non-toxic, non-irritating, and have good biocompatibility, and are widely used in medical dressings. For scalded wounds, this kind of dressing is easy to stick to the wound, and changing the dressing is easy to cause pain to the patient and cause secondary damage to the wound. [0003] At present, in order to overcome the above problems, the dressing is usually soaked in liquid paraffin oil or medical vaseline (such as medical vaseline gauze) and other grease-based hydrophobic substances to reduce wound adhesion, but soaking such oily substances will make the dressing water-absorbent. (Ability to absorb exudate) and the speed of liquid absor...

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 Applications(China)
IPC IPC(8): A61F13/02D06M15/356D06M15/564D06M15/53D06M15/59D06M11/00D06M101/06
CPCA61F13/0203A61F13/0286A61F13/0259A61F13/00987A61F13/00017A61F13/00034A61F13/00063D06M15/3562D06M15/564D06M15/53D06M15/59D06M11/00D06M16/00D06M2101/06
Inventor 何杰史丙华姜志华
Owner 长沙海润生物技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap