Medical first aid rapid condensation hemostatic gauze and preparation method thereof

A kind of hemostatic gauze, fast technology, applied in the field of medical emergency materials, can solve problems such as unfavorable hemostasis, increased pain, blood-sucking, poor hemostatic effect, etc., to achieve the effect of improving blood-sucking and hemostasis, and relieving pain.

Inactive Publication Date: 2018-07-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] According to the above, in the existing method of using a hemostatic agent for hemostasis, the hemostatic agent has a serious exothermic phenomenon, which makes the wound temperature increase significantly, which is not only unfavorable for hemostasis, but also c...

Method used

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  • Medical first aid rapid condensation hemostatic gauze and preparation method thereof
  • Medical first aid rapid condensation hemostatic gauze and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] (1) Immerse the yarn in an aqueous solution of acrylamide, add an initiator under the protection of nitrogen, and generate polyacrylamide by initiating polymerization, so that the polyacrylamide is completely covered on the inner and outer surfaces of the yarn; among them: yarn 82.2 parts by weight , 17 parts by weight of acrylamide, 0.8 parts by weight of initiator; the yarn is absorbent cotton yarn; the initiator is potassium sulfate; the temperature of the polymerization reaction is 42°C;

[0036] (2) Add a foaming agent, heat and dry, and loosen the polyacrylamide through the foaming agent; wherein: 98 parts by weight of polyacrylamide-coated yarn, 2 parts by weight of the foaming agent; the foaming agent is n-pentyl alkyl;

[0037] (3) The yarn is spun to obtain a gauze loaded with loose polyacrylamide; the warp and weft density of the gauze is 40 threads / inch, and the grammage is 70g / m 2 ;

[0038] (4) Mix nonanol, n-pentadecane, and graphene evenly to make a ph...

Embodiment 2

[0043](1) Immerse the yarn in an aqueous solution of acrylamide, add an initiator under the protection of nitrogen, and generate polyacrylamide by initiating polymerization, so that the polyacrylamide is completely coated on the inner and outer surfaces of the yarn; among them: 84.5 parts by weight of yarn , 15 parts by weight of acrylamide, 0.5 parts by weight of an initiator; the yarn is an ultra-high molecular weight polyethylene yarn; the initiator is potassium sulfate; the temperature of the polymerization reaction is 35° C.;

[0044] (2) Add a foaming agent, heat and dry, and loosen the polyacrylamide through the foaming agent; wherein: 97 parts by weight of polyacrylamide-coated yarn, 3 parts by weight of the foaming agent; the foaming agent is n-hexane ;

[0045] (3) The yarn is spun to obtain a gauze loaded with loose polyacrylamide; the warp and weft density of the gauze is 30 threads / inch, and the grammage is 60g / m 2 ;

[0046] (4) Mix nonanol, n-pentadecane, and ...

Embodiment 3

[0051] (1) Immerse the yarn in an aqueous solution of acrylamide, add an initiator under the protection of nitrogen, and generate polyacrylamide by initiating polymerization, so that the polyacrylamide is completely coated on the inner and outer surfaces of the yarn; among them: yarn 79 parts by weight , 20 parts by weight of acrylamide, 1 part by weight of initiator; the yarn is absorbent cotton yarn; the initiator is potassium sulfate; the temperature of the polymerization reaction is 45°C;

[0052] (2) Add a foaming agent, heat and dry, and loosen polyacrylamide through the foaming agent; wherein: 99 parts by weight of polyacrylamide-coated yarn, 1 part by weight of foaming agent; the foaming agent is n-heptyl alkyl;

[0053] (3) The gauze loaded with loose polyacrylamide is obtained by weaving the yarn; the warp and weft density of the gauze is 50 threads / inch, and the grammage is 90g / m 2 ;

[0054] (4) Mix nonanol, n-pentadecane, and graphene evenly to make a phase-chan...

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Abstract

The invention relates to the field of medical first aid materials, and discloses a medical first aid rapid condensation hemostatic gauze and a preparation method thereof. A gauze loaded with loose polyacrylamide is prepared; nonanol, n-pentadecane and graphene are mixed evenly to prepare a phase change refrigeration material; the phase change refrigeration material is mixed with aspirin, Pudilan fine powder, alginic acid and gelatin to prepare a paste material; the surface of the gauze loaded with the loose polyacrylamide is coated with the paste material, and packaging is conducted to obtainthe rapid condensation hemostatic gauze. Compared with an ordinary hemostatic material, according to the hemostatic gauze, yarns coated with the loose polyacrylamide have excellent blood sucking and hemostasis effects, the coated phase change refrigeration material decelerates the blood flow to achieve rapid hemostasis, and the hemostatic gauze can effectively stop bleeding, reduce inflammation and relieve pain by adding auxiliary aspirin and Pudilan.

Description

technical field [0001] The invention relates to the field of medical first aid materials, and discloses a medical first aid rapid condensation hemostatic gauze and a preparation method thereof. Background technique [0002] Bleeding is the main complication after trauma, and excessive bleeding will inevitably cause shock, which is life-threatening. Therefore, timely and effective hemostasis is of great significance to save the lives of patients. Effective hemostasis is not only an important issue to be solved in surgical operations, but also a key issue to improve the survival rate of the wounded in war and trauma. How to stop bleeding after bleeding has always puzzled human beings. With the continuous development of science and technology, more and more attention has been paid to the development and application of various hemostatic materials and corresponding hemostatic techniques. [0003] The earliest hemostasis technology mainly used bandaging, but the hemostatic eff...

Claims

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Application Information

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IPC IPC(8): A61L15/24A61L15/20A61L15/18A61L15/44A61L15/28A61L15/32A61L15/42
CPCA61L15/24A61L15/18A61L15/20A61L15/28A61L15/325A61L15/42A61L15/44A61L2300/21A61L2300/30A61L2300/402A61L2300/41A61L2300/418A61L2400/04C08L33/26C08L5/04
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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