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.
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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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