Hemostasis bag, hemostasis pressing assembly and hemostasis device

A pressure and blood technology, applied in the field of medical devices, can solve problems such as human stimulation, allergy and inflammation, and application limitations, and achieve good hemostatic performance, reduce allergies, and accelerate the blood coagulation process.

Inactive Publication Date: 2014-12-24
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most hemostatic materials, such as collagen, chitosan, starch, fibrin, and cellulose are derived from biological sources, which may have potential risks of causing irritation, allergy, and inflammation in the human body
Zeolite or kaolinite is the main active ingredient of QuikClot. QuikClot or similar hemostatic materials can stop bleeding quickly, but there may be a potential risk of generating heat and causing secondary burns
In addition, traditional Chinese medicines that can be used to stop bleeding, such as Yunnan Baiyao, are usually used to coat trauma with small wounds, and the application occasions are relatively limited

Method used

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  • Hemostasis bag, hemostasis pressing assembly and hemostasis device
  • Hemostasis bag, hemostasis pressing assembly and hemostasis device
  • Hemostasis bag, hemostasis pressing assembly and hemostasis device

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Place the rabbit with a weight of about 2kg on the operating table on its back, and separate the two hind legs; cut the abdomen of the rabbit to expose the spleen, and set a wound with a depth of 1mm and a length of 5mm on the surface of the spleen.

[0061] The hemostatic pack provided by the present invention can be placed and fixed to the wound site by applying a 50 g weight (approximately 0.49 N) on the hemostatic pack. In the hemostatic bag, the semipermeable membrane is a nylon semipermeable membrane purchased from Sefar, the holes of the semipermeable membrane are regularly arranged, and the diameter of the holes of the semipermeable membrane is 11 μm; the hemostatic In the bag, the water-absorbing substance is polyacrylic acid powder (model SANFRESH YH-2) purchased from Sanyo Company.

[0062] Every 5 minutes, the hemostatic pack was removed and the wound site was checked for rupture and bleeding. Use a stopwatch to measure and calculate the hemostatic time, wi...

Embodiment 2

[0066] The same method as in Example 1 was used to carry out the rabbit spleen tear test in vivo, except that the diameter of the pores of the semipermeable membrane was 5 μm.

[0067] The test results are listed in Table 1 and Figure 6 , each test result is the mean value of the hemostasis time of six tests.

Embodiment 3

[0069] The same method as in Example 1 was used to carry out the rabbit spleen tear test in vivo, except that the diameter of the pores of the semipermeable membrane was 1 μm.

[0070] The test results are listed in Table 1 and Figure 4 , each test result is the mean value of the hemostasis time of six tests.

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Abstract

The invention provides a hemostasis bag, a hemostasis pressing assembly and a hemostasis device. The hemostasis bag comprises a semi-permeable membrane and a water-absorbing material, wherein the semi-permeable membrane is provided with holes for blocking blood platelets and / or blood cells and allowing water molecules to pass through, and the water-absorbing material is arranged on the opposite side of the side, for blocking the blood platelets and / or the blood cells, of the semi-permeable membrane and used for absorbing moisture in blood at a bleeding part through the holes of the semi-permeable membrane so that the effect of accelerating the hemostasis can be achieved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a hemostatic bag, a hemostatic pressing component and a hemostatic device for hemostasis. Background technique [0002] Typically, hemostasis is the first step in wound management. Hemostatics have been used to prevent bleeding for over a thousand years. With the rapid development of hemostatic technology, considerable progress has been made in hemostatic products. Most of the existing hemostatic materials usually adopt other materials such as collagen (gelatin or collagen), cellulose, chitosan (chitosan), porous material (zeolite) or traditional Chinese medicine (TCM). Most hemostatic materials, such as collagen, chitosan, starch, fibrin, and cellulose are derived from biological sources, which may have potential risks of causing irritation, allergy, and inflammation in the human body. Zeolite or kaolinite is the main active ingredient in QuikClot. QuikClot or similar hemostati...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12A61B17/12009A61B17/12109A61B17/12131A61B2017/12004
Inventor 刘恺鹏龚祖光范婷叶扬刘军钪刘杰白峰吴平凡
Owner 3M INNOVATIVE PROPERTIES CO
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