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High-efficiency absorption hemostatic dressing and preparation method thereof

A hemostatic dressing, high-efficiency technology, applied in dressings, adhesive dressings, non-adhesive dressings, etc., can solve the problems of edge fibers and surface fibers that are easy to fall off, cannot prevent leakage, and is not conducive to long-term use of trauma patients, and achieves strong absorption. , promote rapid healing, low production cost

Active Publication Date: 2019-02-01
GUANGZHOU UNIVERSITY OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its edge fibers and surface fibers are easy to fall off, and it cannot prevent leakage, which is not conducive to long-term use by trauma patients.

Method used

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  • High-efficiency absorption hemostatic dressing and preparation method thereof
  • High-efficiency absorption hemostatic dressing and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] A high-efficiency absorption hemostatic dressing, the dressing sequentially includes a hemostatic layer, an absorbent core layer, an antibacterial layer, a waterproof layer and a bottom layer, the absorbent core layer is composed of fluff pulp and superabsorbent resin, and the mass ratio of fluff pulp to superabsorbent resin is 1:1, the superabsorbent resin is polyacrylate superabsorbent resin, and the antibacterial layer is a network structure film made of ethylene-vinyl acetate polymer and polystyrene with a mass ratio of 50:9 to stop bleeding The layer is composed of sodium alginate film, the waterproof layer is waterproof non-woven fabric, the bottom layer is elastic bandage, the areas of the hemostatic layer, absorbent core layer, antibacterial layer and waterproof layer are equal and smaller than the area of ​​the bottom layer.

[0025] A kind of preparation method of efficient absorption hemostatic dressing, the concrete steps of its preparation method are as foll...

experiment example 1

[0031] The high-efficiency absorption hemostatic dressing embodiment 1 provided by the present invention and the common active carbon fiber absorbent core layer are measured according to the following test methods for water absorption rate, water absorption rate, liquid retention capacity, and moisture permeability. The test is carried out 3 times and the average value is obtained. As shown in Table 1.

[0032] Water absorption rate:

[0033] Put about 10ml of physiological saline (0.9% NaCl) in a stainless steel container, cut the test material into 4*4cm test pieces, seal them in the container and store them for 8 hours, the weight of the test piece before putting into the container is m1 (g) , The weight of the test piece taken out after 8 hours is m2 (g), and the water absorption rate Q=(m2-m1) / m1.

[0034] Water absorption rate:

[0035] 500 µl of physiological saline (0.9% NaCl) was dropped on the surface of the test piece, and the time until the liquid was completely ...

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Abstract

The invention relates to a high-efficiency absorption hemostatic dressing and a preparation method thereof, and belongs to the technical field of medical consumables. The high-efficiency absorption hemostatic dressing of the invention includes a hemostatic layer, an absorption core layer, an antibacterial layer, a waterproof layer and a bottom layer in order. Preparation raw materials of the absorption core layer include fluff pulp and super absorbent resin. The absorption core layer of the invention adopts an absorption structure composed of the super absorbent resin and the fluff pulp, and so a large amount of blood can be quickly and fully absorbed and effectively coagulated without leaking back, thereby ensuring anti-seepage and anti-leakage. Meanwhile, the high-efficiency absorption hemostatic dressing has waterproof, breathable, antibacterial and hemostatic effects, promotes rapid healing of wounds, and is widely used in patients with moderate and severe bleeding.

Description

technical field [0001] The invention relates to the technical field of medical consumables, in particular to a high-efficiency absorption hemostatic dressing and a preparation method thereof. Background technique [0002] The use of medical dressings can control wound exudate in a timely manner, and at the same time prevent microbial invasion and infection of the wound, maintain a slightly humid environment on the wound, and thus promote rapid wound healing. According to clinical experience, the early bleeding volume of ordinary wounds in orthopedic patients can be as high as 100ml, and the bleeding and exudate from the wound can be in a state of continuous exudation. Currently, sterile gauze, cotton pads, common bandages, and activated carbon fibers are commonly used in such dressings, but none of the sterile gauze, cotton pads, and common bandages has the function of preventing liquid extravasation. It is weak, and the edge fibers and surface fibers are easy to fall off, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/02
CPCA61F13/00063A61F13/02A61F2013/00604A61F2013/00463A61F13/01042A61F13/01029
Inventor 李春钟淑贤胡佩欣申倩
Owner GUANGZHOU UNIVERSITY OF CHINESE MEDICINE
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