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Surgical dressing bandage

A hemostatic patch and surgical technology, applied in the field of medical assistance, can solve the problems of not very strong absorption capacity, affecting the debridement process, and poor ability to absorb exudate, achieve excellent antibacterial properties and thermal stability, inhibit bacterial growth, prevent The effect of wound infection

Active Publication Date: 2016-12-07
SHAOXING RUIKAI PROTECTION PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Advantages: 1. Powerful and fast absorption of wound exudate 2. The production and processing process is relatively simple; Disadvantages: 1. Too high permeability, easy to dehydrate the wound 2. Adhering to the wound surface, it will cause mechanical damage again when replaced 3 1. Microorganisms in the external environment are easy to pass through, and the chance of cross-infection is higher. 4. The dosage is large, the replacement is frequent, time-consuming, and the patient suffers. Due to the reduction of natural resources, the cost of gauze is gradually increasing. Therefore, in order to avoid excessive use of natural resources, appear In order to process the application of polymer materials (synthetic fibers) into surgical dressings, this is synthetic fiber dressings
Advantages: 1. Block environmental microbes from invading the wound surface and prevent cross-infection 2. Moisturizing, making the wound surface moist and not sticking to the wound surface, so that there will be no mechanical damage during replacement 3. Self-adhesive, easy to use, and Transparent, easy to observe the wound. Disadvantages: 1. Poor ability to absorb exudate. 2. Relatively high cost. 3. There is a high chance of skin impregnation around the wound. Therefore, this type of dressing is mainly used for postoperative wounds with little exudation, or as a dressing. Adjunctive Dressings to Other Dressings
Disadvantages: 1. Due to the strong absorption performance, it may affect the self-debridement process for low-exudation wounds. 2. The cost is relatively high. 3. It is not convenient to observe the wound due to opacity. (5) Surgical medical dressing hydrocolloid dressing : Its main component is a kind of hydrocolloid carboxymethylcellulose sodium particles (CMC) with very strong hydrophilic ability, which together with hypoallergenic medical adhesive, elastomer and plasticizer constitute the main body of the dressing. It is a layer of semi-permeable polymer membrane structure
Disadvantages: 1. The absorption capacity is not very strong, so for highly exudative wounds, it is often necessary to use other auxiliary dressings to enhance the absorption performance 2. The product cost is high 3. Individual patients may be allergic to ingredients
Advantages: 1. Strong and fast absorption of exudate 2. Forming gel, which can keep the wound surface moist and non-sticky, protect exposed nerve endings and relieve pain 3. Promote wound healing; 4. Biodegradable and environmentally friendly Good performance; 5. Reduce scar formation; Disadvantages: 1. Most products are not self-adhesive and need auxiliary dressings to fix them. 2. The cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Take 4wt% of discarded or recycled sodium alginate fibers, add sodium hyaluronate with 3% of the mass of sodium alginate fibers to it, adjust the pH to 5.5 with an organic acid solution with a mass fraction of 30%, and then heat, Set the temperature to 65°C, keep the temperature for 50 minutes, cool to room temperature naturally, and collect the filtrate by filtration;

[0030] (2) Put the above-mentioned filtrate into an oven, dry at 90°C for 3 hours, then put the dried filtrate into a pulverizer for crushing, pass through a 60-mesh sieve, and mix the powder with a solid-to-liquid mass ratio of 1.5:3 Mix with water, and use 10wt% acetic acid solution to adjust the pH of the mixed solution to 4.0, leave it to stand for acidification treatment for 3 hours, filter, collect the filtrate, put the filtrate into an air dryer to air dry, put it into a pulverizer after air drying, and pass 240 mesh sieve to obtain acidified sodium alginate powder;

[0031] (3) Mix 40 mesh ...

Embodiment 2

[0035] (1) Take 6wt% of the discarded or recycled sodium alginate fiber, add sodium hyaluronate with 3% of the weight of sodium alginate fiber to it, use an organic acid solution with a mass fraction of 40% to adjust the pH to 5, and then heat, Set the temperature to 65°C, keep the temperature for 40 minutes, cool to room temperature naturally, and collect the filtrate by filtration;

[0036] (2) Put the filtrate obtained above into an oven, dry at 70°C for 1 hour, then put the dried filtrate into a pulverizer for crushing, pass through a 90-mesh sieve, and mix the powder with a solid-to-liquid mass ratio of 2.5: 1 Mix with water, and use 50wt% acetic acid solution to adjust the pH of the mixed solution to 4.5, leave it to stand for acidification treatment for 3 hours, filter, collect the filtrate, put the filtrate into an air dryer to air dry, and put it into a pulverizer after air drying, Pass through a 240-mesh sieve to obtain acidified sodium alginate powder;

[0037] (3)...

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Abstract

Provided is a surgical dressing bandage. The surgical dressing bandage is characterized in that one face of a surgical dressing is coated with a medical adhesive and bonded with release paper, and when used, the surgical dressing bandage adheres to the surface of a wound after the release paper is torn off; the dressing is made of sodium alginate fiber, and biodegradability and high water absorption are achieved.

Description

technical field [0001] The invention relates to a surgical medical dressing, which can be used in the field of medical assistance. Background technique [0002] Surgical dressings are wound-wrapping supplies used to cover sores, wounds or other damaged medical materials. With the in-depth study of the pathophysiology of the wound healing process, people's understanding of the wound healing process has become more and more profound, which has led to the continuous improvement and development of medical wound dressings. Today, the new dressings for wound care have undergone revolutionary changes compared to the early days, and a variety of surgical dressings with different performances are available for clinical nurses to choose. At present, alginate dressing is a relatively advanced surgical medical dressing in the world. Various surgical dressings have their own advantages and disadvantages. (1) Natural gauze is the earliest and most widely used type of dressing. Advant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/62A61L15/42A61L15/46A61L15/28A61L15/20
CPCA61L15/20A61L15/28A61L15/42A61L15/46A61L15/62A61L2300/216A61L2300/232A61L2300/404C08L5/08C08L5/04
Inventor 耿云花
Owner SHAOXING RUIKAI PROTECTION PROD CO LTD
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