First-aid bleeding stopping dressing and preparing method thereof

Abstract

The invention relates to a first-aid bleeding stopping dressing and a preparing method thereof. The bleeding stopping dressing comprises of a first layer, a second layer, a third layer and a fourth layer, wherein spunlace non-woven fabric containing chitosan fibers serves as the first layer, a non-woven fabric water absorbing pad with low water absorption capacity serves as the second layer, a non-woven fabric water absorbing pad with high water absorption capacity serves as the third layer, and a breathable and moisture nonpermeable isolation layer serves as the fourth layer. The second layer and the third layer are wrapped in the first layer and the fourth layer with the method of hot pressing on the peripheral edges of the first layer and the fourth layer. The first-aid bleeding stopping dressing has the quick bleeding stopping effect; meanwhile, the first-aid bleeding stopping dressing has the advantages that blood and wound percolate can be sealed in the dressing and prevented from staining the periphery skin and clothes, and good breathability is achieved.

Description

technical field

[0001] The invention relates to the technical field of medical hemostatic materials, in particular to an emergency hemostatic dressing and a preparation method thereof. Background technique

[0002] First aid treatment of sudden accidents in daily life, trauma hemostasis in the operation of patients in the hospital, rescue of wounded soldiers in war and local effective and rapid hemostasis of patients are very important, because uncontrolled bleeding It is the main cause of sudden accidents, hemorrhage in medical operations, or death on the battlefield.

[0003] The main purpose of wound first aid is to temporarily control bleeding, cover and bandage the wound as soon as possible, isolate the wound from the outside world to reduce the chance of infection, and create good wound conditions for debridement. Traditional wound hemostatic materials are mainly first aid kits, four-head bands, tourniquets and bandages, etc., and sometimes a large number of sterile d...

Examples

preparation example Construction

[0032] The preparation method of the non-woven absorbent pad of the second layer with low water absorption multiple: viscose fiber spunlace non-woven fabric, and the processing technology is the same as above.

[0033] The preparation method of the third layer of non-woven fabric absorbent pad with high water absorption multiple: mix viscose fiber and polyacrylate super absorbent fiber evenly, and then comb and spread it into a fiber web, and through the puncture effect of the needle of the acupuncture machine, the fluffy The fiber web is strengthened and entangled to obtain strength, thereby preparing a non-woven fabric.

Embodiment 1

[0035] The first layer: spunlace non-woven fabric prepared by mixing chitosan fiber and cotton fiber, the non-woven fabric has a large number of meshes, the proportion of chitosan fiber is 20%, and the proportion of cotton fiber is 80%;

[0036] The second layer is a non-woven absorbent pad with a low water absorption rate, which is made of viscose fiber, and its absorption rate for pure water is 5-10 times;

[0037] The third layer: non-woven absorbent pad with high water absorption rate, made of viscose fiber and polyacrylate superabsorbent fiber, the proportion of viscose fiber is 30%, and the proportion of polyacrylate superabsorbent fiber is 70%. The absorption factor of pure water is about 52 times (W / W);

[0038] The fourth layer of isolation layer is coated paper;

[0039] The surrounding edges of the first layer and the fourth layer adopt the method of hot pressing to wrap the second layer and the third layer inside.

Embodiment 2

[0041]The first layer: spunlace non-woven fabric prepared by mixing chitosan fiber and cotton fiber, the non-woven fabric has a large number of meshes, the proportion of chitosan fiber is 20%, and the proportion of cotton fiber is 80%;

[0042] The second layer is a non-woven absorbent pad with a low water absorption rate, which is made of viscose fiber, and its absorption rate for pure water is 5-10 times (W / W);

[0043] The third layer: non-woven absorbent pad with high water absorption rate, made of viscose fiber and polyacrylate superabsorbent fiber, the proportion of viscose fiber is 40%, and the proportion of polyacrylate superabsorbent fiber is 60%. The absorption factor of pure water is about 41 times (W / W);

[0044] The fourth layer of isolation layer is coated paper;

[0045] The surrounding edges of the first layer and the fourth layer adopt the method of hot pressing to wrap the second layer and the third layer inside.

technical field

[0001] The invention relates to the technical field of medical hemostatic materials, in particular to an emergency hemostatic dressing and a preparation method thereof. Background technique

[0002] First aid treatment of sudden accidents in daily life, trauma hemostasis in the operation of patients in the hospital, rescue of wounded soldiers in war and local effective and rapid hemostasis of patients are very important, because uncontrolled bleeding It is the main cause of sudden accidents, hemorrhage in medical operations, or death on the battlefield.

[0003] The main purpose of wound first aid is to temporarily control bleeding, cover and bandage the wound as soon as possible, isolate the wound from the outside world to reduce the chance of infection, and create good wound conditions for debridement. Traditional wound hemostatic materials are mainly first aid kits, four-head bands, tourniquets and bandages, etc., and sometimes a large number of sterile d...

Examples

preparation example Construction

[0032] The preparation method of the non-woven absorbent pad of the second layer with low water absorption multiple: viscose fiber spunlace non-woven fabric, and the processing technology is the same as above.

[0033] The preparation method of the third layer of non-woven fabric absorbent pad with high water absorption multiple: mix viscose fiber and polyacrylate super absorbent fiber evenly, and then comb and spread it into a fiber web, and through the puncture effect of the needle of the acupuncture machine, the fluffy The fiber web is strengthened and entangled to obtain strength, thereby preparing a non-woven fabric.

Embodiment 1

[0035] The first layer: spunlace non-woven fabric prepared by mixing chitosan fiber and cotton fiber, the non-woven fabric has a large number of meshes, the proportion of chitosan fiber is 20%, and the proportion of cotton fiber is 80%;

[0036] The second layer is a non-woven absorbent pad with a low water absorption rate, which is made of viscose fiber, and its absorption rate for pure water is 5-10 times;

[0037] The third layer: non-woven absorbent pad with high water absorption rate, made of viscose fiber and polyacrylate superabsorbent fiber, the proportion of viscose fiber is 30%, and the proportion of polyacrylate superabsorbent fiber is 70%. The absorption factor of pure water is about 52 times (W / W);

[0038] The fourth layer of isolation layer is coated paper;

[0039] The surrounding edges of the first layer and the fourth layer adopt the method of hot pressing to wrap the second layer and the third layer inside.

Embodiment 2

[0041]The first layer: spunlace non-woven fabric prepared by mixing chitosan fiber and cotton fiber, the non-woven fabric has a large number of meshes, the proportion of chitosan fiber is 20%, and the proportion of cotton fiber is 80%;

[0042] The second layer is a non-woven absorbent pad with a low water absorption rate, which is made of viscose fiber, and its absorption rate for pure water is 5-10 times (W / W);

[0043] The third layer: non-woven absorbent pad with high water absorption rate, made of viscose fiber and polyacrylate superabsorbent fiber, the proportion of viscose fiber is 40%, and the proportion of polyacrylate superabsorbent fiber is 60%. The absorption factor of pure water is about 41 times (W / W);

[0044] The fourth layer of isolation layer is coated paper;

[0045] The surrounding edges of the first layer and the fourth layer adopt the method of hot pressing to wrap the second layer and the third layer inside.

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