Low-adhesion sterilized gauze preparation device and preparation method

Abstract

The invention provides a low-adhesion sterilized gauze preparation device which comprises a workbench, and the top of the workbench is fixedly connected with a disinfection assembly, a vacuumizing pump, a right air pump, a steam generator, a heat preservation box, a left air pump and a cold air box. The disinfection assembly comprises an outer barrel, a heating plate, an inner barrel, a stirring shaft, a stirring blade, a spring son hasp, a side hole, a filter screen, a barrel cover, a temperature and humidity sensor, a pressure relief pipe, a pressure relief valve, a spring mother hasp and an air pressure sensor. A workbench, a disinfection assembly, a vacuumizing pump, a rear air pipe, a right air pump, a right air pipe, a rear connecting pipe, a steam generator, a rear valve, a right connecting pipe, a right valve, a heat preservation box, a heating disc, a temperature sensor, a left air pump, a left air pipe, a left connecting pipe, a left valve, a cold air box, a refrigerator, an ultraviolet lamp tube and an air inlet pipe are arranged; the high-temperature and high-pressure steam and cold air used in the manufacturing process can be recycled, sustainable cyclic utilization is achieved, energy consumption is reduced, and the production efficiency of gauze can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical gauze, in particular to a low-adhesion sterilized gauze preparation device and a preparation method. Background Art

[0002] Medical gauze is usually made of natural fibers or artificial fibers, mainly pure cotton, with good water absorption and breathability. It is mainly used for bandaging wounds, stopping bleeding, disinfecting and protecting wounds.

[0003] Existing gauze generally has no stickiness. When it needs to be adhered to other objects, medical tape needs to be used for bonding, which makes the use of medical tape very large. In addition, the existing medical gauze needs to be repeatedly sterilized and dried during the production process, which consumes a lot of energy. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a low-adhesion sterilized gauze preparation device and preparation method, which solves the problem that the prior gauze does not have adhesion and needs to be sterilized repeatedly during the production process, resulting in high energy consumption.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-adhesion sterilized gauze preparation device and preparation method, including a workbench, the top of the workbench is fixedly connected with a disinfection component, a vacuum pump, a right air pump, a steam generator, an insulation box, a left air pump and a cold air box, the disinfection component includes an outer barrel, a heating plate, an inner barrel, a stirring shaft, a stirring blade, a spring buckle, a side hole, a filter, a barrel cover, a temperature and humidity sensor, a pressure relief pipe, a pressure relief valve, a spring buckle and an air pressure sensor, the bottom of the outer barrel is fixedly connected to the workbench, the inner circumferential surface of the outer barrel is fixedly connected with a heating plate, the inner circumferential surface of the heating plate is fixedly connected with an inner barrel, the inner barrel is rotatably provided with a stirring shaft, the circumferential surface of the stirring shaft is fixedly connected with a stirring blade, the number of the stirring blades There are multiple spring sub-clasps which are evenly distributed on the stirring shaft, a spring sub-clasp is fixedly connected on the circumferential surface of the outer barrel, a plurality of the spring sub-clasps are arranged and are evenly distributed on the outer barrel, a side hole is arranged on the circumferential surface of the outer barrel, two of the side holes are arranged and are symmetrically distributed on the outer barrel, the side hole passes through the outer barrel, the heating plate and the inner barrel, a filter is fixedly arranged inside the side hole, and the filter is located on the circumferential surface of the inner barrel, a temperature and humidity sensor and an air pressure sensor are fixedly connected to the bottom of the barrel cover, a pressure relief pipe is fixedly connected to the top of the barrel cover, a pressure relief valve is fixedly connected to the circumferential surface of the pressure relief pipe, a spring female buckle is fixedly connected on the circumferential surface of the barrel cover, a plurality of the spring female buckles are arranged and are evenly distributed on the barrel cover.

[0006] Preferably, a rear air pipe, a right air pipe and a left air pipe are fixedly connected to the circumferential surface of the outer barrel, a right air pump is fixedly connected to the right side of the right air pipe, a rear connecting pipe is fixedly connected to the rear side wall of the right air pump, a rear valve is fixedly connected to the circumferential surface of the rear connecting pipe, a steam generator is fixedly connected to the rear side wall of the rear connecting pipe, a right connecting pipe is fixedly connected to the right side wall of the right air pump, a right valve is fixedly connected to the circumferential surface of the right connecting pipe, an insulation box is fixedly connected to the right side wall of the right connecting pipe, a heating plate is fixedly connected to the inner bottom surface of the insulation box, and a temperature sensor is fixedly connected to the inner top surface of the insulation box.

[0007] Preferably, a left air pump is fixedly connected to the left side wall of the left air pipe, a left connecting pipe is fixedly connected to the left side wall of the left air pump, a left valve is fixedly connected to the circumferential surface of the left connecting pipe, a cold air box is fixedly connected to the left side wall of the left connecting pipe, a refrigerator is fixedly connected to the rear side wall of the cold air box, an ultraviolet lamp is fixedly connected to the inner top surface of the cold air box, and an air intake pipe is fixedly connected to the top of the cold air box.

[0008] Preferably, the vacuum pump is located behind the disinfection component, the right air pump is located on the right side of the disinfection component, the steam generator is located behind the right air pump, the insulation box is located on the right side of the right air pump, the left air pump is located on the left side of the disinfection component, and the cold air box is located on the left side of the left air pump.

[0009] Preferably, a main motor is fixedly connected to the bottom of the workbench, and a top output end of the main motor is fixedly connected to the stirring shaft.

[0010] Preferably, the right trachea and the left trachea are both located inside the side hole.

[0011] Preferably, the spring sub-clasp and the spring female buckle are arranged correspondingly.

[0012] Preferably, the bottom of the workbench is fixedly connected with pillars, and the number of the pillars is set to four and symmetrically distributed at the four corners of the bottom of the workbench.

[0013] A method for preparing low-adhesion sterilized gauze comprises the following steps: S1. Take the absorbent gauze and put it into the inner barrel, then cover the barrel lid and lock the spring buckle and the spring buckle; S2, start the vacuum pump to evacuate the gas in the inner barrel, then start the steam generator to continuously inject high-temperature steam into the inner barrel through the right air pump; S3, start the main motor to rotate the stirring shaft, and the stirring blade sterilizes the internal absorbent gauze with high temperature and high pressure; S4. After a period of time, start the right air pump to inject the high-temperature and high-pressure steam in the inner barrel into the insulation box to complete the recycling and facilitate the next use. Start the left air pump to inject the cold air in the cold air box that has been sterilized by the ultraviolet lamp into the inner barrel to quickly cool the absorbent gauze. After completion, start the left air pump to extract the cold air in the inner barrel back to the cold air box; S5. Open the lid of the barrel, take out the absorbent gauze, and cut the absorbent gauze into small pieces of 5cm*5cm.

[0014] S6, add 1 mol of ethylenediamine to a 500 mL three-necked flask, add 20 mL of ethanol, and then add 1 mol of methyl acrylate dropwise to the three-necked flask using a constant pressure dropping funnel, and react at room temperature for 2 h; S7, heat the three-necked flask to 60 °C, remove the solvent in vacuo, then heat it to 100 °C and continue the reaction for 2 h; S8, after the solution in the three-necked flask is cooled to room temperature, 1 mol of propylene oxide is added, and the three-necked flask is heated again, and the reaction is carried out at 100° C. for 2 h to obtain a hyperbranched polyamide, and then the hyperbranched polyamide is prepared into a 10 g / L aqueous solution; S9, blending a saturated aqueous solution of silver acetate with an aqueous solution of a hyperbranched polyamide amine, adding 2% triethyl glycerol, stirring for 1 hour to obtain a hyperbranched polyamide amine / Ag+ composite solution, and then soaking a 5*5 cm gauze in the composite solution, taking it out after 3 seconds, to obtain an antibacterial gauze with low tissue adhesion and effective bactericidal activity; S10, putting the gauze obtained in S9 into the inner barrel again, starting the vacuum pump to extract the air in the inner barrel, starting the heating plate to heat the inner barrel, starting the vacuum pump to extract the internal gas after heating for a period of time, completing the sterilization and drying of the gauze, and then injecting cold air from the cold air box, and taking out the gauze for packaging after cooling.

[0015] (III) Beneficial effects The present invention provides a low-adhesion sterilized gauze preparation device and preparation method, which has the following beneficial effects: 1. By setting up a workbench, a disinfection component, a vacuum pump, a rear air pipe, a right air pump, a right air pipe, a rear connecting pipe, a steam generator, a rear valve, a right connecting pipe, a right valve, an insulation box, a heating plate, a temperature sensor, a left air pump, a left air pipe, a left connecting pipe, a left valve, a cold air box, a refrigerator, an ultraviolet lamp and an air intake pipe, the high-temperature and high-pressure steam and cold air used in the production process can be recycled to form a sustainable recycling method, which not only reduces energy consumption but also improves the production efficiency of gauze.

[0016] 2. The present invention can produce low-adhesion gauze, reduce the amount of medical tape used during use, and reduce the cost of medical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a low-adhesion sterilized gauze preparation device proposed by the present invention; Figure 2 A cross-sectional view of a sterilization barrel of a low-adhesion sterilized gauze preparation device proposed by the present invention; Figure 3 This is a cross-sectional view of a barrel cover of a low-adhesion sterilized gauze preparation device proposed by the present invention; Figure 4 A cross-sectional view of an incubator box of a low-adhesion sterilized gauze preparation device proposed by the present invention; Figure 5 A top view of a low-adhesion sterilized gauze preparation device proposed by the present invention; Figure 6 This is a cross-sectional view of a cold air box of a low-adhesion sterilized gauze preparation device proposed by the present invention.

[0018] Among them, 1. workbench; 2. disinfection component; 3. vacuum pump; 4. rear air pipe; 5. right air pump; 6. right air pipe; 7. rear connecting pipe; 8. steam generator; 9. rear valve; 10. right connecting pipe; 11. right valve; 12. insulation box; 13. heating plate; 14. temperature sensor; 15. left air pump; 16. left air pipe; 17. left connecting pipe; 18. left valve; 19. cold air box; 20. refrigeration device; 21, ultraviolet lamp; 22, air inlet pipe; 23, pillar; 201, outer barrel; 202, heating plate; 203, inner barrel; 204, stirring shaft; 205, stirring blade; 206, spring buckle; 207, side hole; 208, filter; 209, barrel cover; 210, temperature and humidity sensor; 211, pressure relief pipe; 212, pressure relief valve; 213, spring buckle; 214, air pressure sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-6As shown, the embodiment of the present invention provides a low-adhesion sterilized gauze preparation device and preparation method, including a workbench 1, the top of the workbench 1 is fixedly connected with a disinfection component 2, a vacuum pump 3, a right air pump 5, a steam generator 8, an insulation box 12, a left air pump 15 and a cold air box 19, and the disinfection component 2 includes an outer barrel 201, a heating plate 202, an inner barrel 203, a stirring shaft 204, a stirring blade 205, a spring buckle 206, a side hole 207, a filter screen 208, a barrel cover 209, and a temperature and humidity sensor 210. , a pressure relief pipe 211, a pressure relief valve 212, a spring buckle 213 and an air pressure sensor 214, the bottom of the outer barrel 201 is fixedly connected to the workbench 1, a heating plate 202 is fixedly connected to the inner circumference of the outer barrel 201, an inner barrel 203 is fixedly connected to the inner circumference of the heating plate 202, a stirring shaft 204 is rotatably arranged inside the inner barrel 203, a stirring blade 205 is fixedly connected to the circumference of the stirring shaft 204, and a plurality of stirring blades 205 are arranged and are evenly distributed on the stirring shaft 204 A spring buckle 206 is fixedly connected to the circumferential surface of the outer barrel 201. The number of the spring buckles 206 is set to be multiple and evenly distributed on the outer barrel 201. A side hole 207 is set on the circumferential surface of the outer barrel 201. The number of the side holes 207 is set to two and symmetrically distributed on the outer barrel 201. The side holes 207 penetrate the outer barrel 201, the heating plate 202 and the inner barrel 203. A filter screen 208 is fixedly set inside the side hole 207. The filter screen 208 is located on the circumferential surface of the inner barrel 203. A temperature and humidity sensor 210 and an air pressure sensor 214 are fixedly connected to the bottom of the cover 209, a pressure relief pipe 211 is fixedly connected to the top of the barrel cover 209, a pressure relief valve 212 is fixedly connected to the circumferential surface of the pressure relief pipe 211, a spring female buckle 213 is fixedly connected to the circumferential surface of the barrel cover 209, and there are multiple spring female buckles 213 that are evenly distributed on the barrel cover 209. The spring sub-buckles 206 and the spring female buckles 213 are correspondingly arranged, so that the barrel cover 209 can be sealed and fixed to the outer barrel 201.

[0021] The outer barrel 201 is fixedly connected to the circumferential surface of the rear air pipe 4, the right air pipe 6 and the left air pipe 16, the right side of the right air pipe 6 is fixedly connected to the right side of the right air pump 5, the rear connecting pipe 7 is fixedly connected to the rear side wall of the right air pump 5, the rear valve 9 is fixedly connected to the circumferential surface of the rear connecting pipe 7, the steam generator 8 is fixedly connected to the rear side wall of the rear connecting pipe 7, the right connecting pipe 10 is fixedly connected to the right side wall of the right air pump 5, the right valve 11 is fixedly connected to the circumferential surface of the right connecting pipe 10, and the right connecting pipe 10 is fixedly connected to the right side wall of the right air pump 5. 0 is fixedly connected to the right side wall of the heat preservation box 12, the inner bottom surface of the heat preservation box 12 is fixedly connected to the heating plate 13, and the inner top surface of the heat preservation box 12 is fixedly connected to the temperature sensor 14. When the right air pump 5 is started, the high-temperature and high-pressure steam in the inner barrel 203 can be recycled into the heat preservation box 12. At the same time, the heating plate 13 can maintain the temperature of the high-temperature steam. When it is reused, the right air pump 5 can be directly started to inject the high-temperature steam in the heat preservation box 12 into the inner barrel 203 again, saving energy.

[0022] A left air pump 15 is fixedly connected to the left side wall of the left air pipe 16, a left connecting pipe 17 is fixedly connected to the left side wall of the left air pump 15, a left valve 18 is fixedly connected to the circumferential surface of the left connecting pipe 17, a cold air box 19 is fixedly connected to the left side wall of the left connecting pipe 17, a refrigerator 20 is fixedly connected to the rear side wall of the cold air box 19, an ultraviolet lamp tube 21 is fixedly connected to the inner top surface of the cold air box 19, and the gas entering the cold air box 19 is sterilized by ultraviolet light, and an air intake pipe 22 is fixedly connected to the top of the cold air box 19. When the left air pump 15 is started, the gas in the inner barrel 203 can be recovered to facilitate subsequent reuse and reduce energy consumption.

[0023] The vacuum pump 3 is located at the rear of the disinfection component 2, the right air pump 5 is located at the right side of the disinfection component 2, the steam generator 8 is located at the rear of the right air pump 5, the insulation box 12 is located at the right side of the right air pump 5, the left air pump 15 is located at the left side of the disinfection component 2, the cold air box 19 is located at the left side of the left air pump 15, and the right air pipe 6 and the left air pipe 16 are both located inside the side hole 207.

[0024] A main motor is fixedly connected to the bottom of the workbench 1, and the top output end of the main motor is fixedly connected to the stirring shaft 204. A pillar 23 is fixedly connected to the bottom of the workbench 1. There are four pillars 23, which are symmetrically distributed at the four corners of the bottom of the workbench 1.

[0025] A method for preparing low-adhesion sterilized gauze comprises the following steps: S1, take absorbent gauze, put it into the inner barrel 203, then cover the barrel cover 209, and lock the spring sub-buckle 206 and the spring female buckle 213; S2, start the vacuum pump 3 to evacuate the gas in the inner barrel 203, then start the steam generator 8 to continuously inject high-temperature steam into the inner barrel 203 through the vacuum pump 5; S3, start the main motor to rotate the stirring shaft 204, and the stirring blade 205 sterilizes the internal absorbent gauze with high temperature and high pressure; S4, after a period of time, start the right air pump 5, inject the high-temperature and high-pressure steam in the inner barrel 203 into the heat preservation box 12, complete the recycling, and facilitate the next use, start the left air pump 15, inject the cold air in the cold air box 19 that has been sterilized by the ultraviolet lamp 21 into the inner barrel 203, so that the absorbent gauze is quickly cooled, and after completion, start the left air pump 15 to extract the cold air in the inner barrel 203 and return it to the cold air box 19; S5, open the barrel cover 209, take out the absorbent gauze, and cut the absorbent gauze into small pieces of 5cm*5cm; S6, add 1 mol of ethylenediamine to a 500 mL three-necked flask, add 20 mL of ethanol, and then add 1 mol of methyl acrylate dropwise to the three-necked flask using a constant pressure dropping funnel, and react at room temperature for 2 h; S7, heat the three-necked flask to 60 °C, remove the solvent in vacuo, then heat it to 100 °C and continue the reaction for 2 h; S8, after the solution in the three-necked flask is cooled to room temperature, 1 mol of propylene oxide is added, and the three-necked flask is heated again, and the reaction is carried out at 100° C. for 2 h to obtain a hyperbranched polyamide, and then the hyperbranched polyamide is prepared into a 10 g / L aqueous solution; S9, blending a saturated aqueous solution of silver acetate with an aqueous solution of a hyperbranched polyamide amine, adding 2% triethyl glycerol, stirring for 1 hour to obtain a hyperbranched polyamide amine / Ag+ composite solution, and then soaking a 5*5 cm gauze in the composite solution, taking it out after 3 seconds, to obtain an antibacterial gauze with low tissue adhesion and effective bactericidal activity; S10, put the gauze obtained in S9 into the inner barrel 203 again, start the vacuum pump 3, extract the air in the inner barrel 203, start the heating plate 202 to heat the inner barrel 203, after heating for a period of time, start the vacuum pump 3 to extract the internal gas, after completing the sterilization and drying of the gauze, inject the cold air in the cold air box 19, and take out the gauze for packaging after cooling.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-adhesion sterilized gauze preparation device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with a disinfection assembly (2), a vacuum pump (3), a right air pump (5), a steam generator (8), an insulation box (12), a left air pump (15) and a cold air box (19). The disinfection assembly (2) comprises an outer barrel (201), a heating plate (202), an inner barrel (203), a stirring shaft (204), a stirring blade (205), a spring buckle (206), a side hole (207), a filter (208), a barrel cover (209), a temperature and humidity sensor (210), a pressure relief pipe (211), and a pressure relief valve (212). ), a spring female buckle (213) and an air pressure sensor (214), the bottom of the outer barrel (201) is fixedly connected to the workbench (1), the inner circumferential surface of the outer barrel (201) is fixedly connected to a heating plate (202), the inner circumferential surface of the heating plate (202) is fixedly connected to an inner barrel (203), a stirring shaft (204) is rotatably arranged inside the inner barrel (203), stirring blades (205) are fixedly connected to the circumferential surface of the stirring shaft (204), and a plurality of stirring blades (205) are arranged and are evenly distributed on the stirring shaft ( 204), a spring buckle (206) is fixedly connected on the circumferential surface of the outer barrel (201), the number of the spring buckles (206) is multiple and evenly distributed on the outer barrel (201), a side hole (207) is provided on the circumferential surface of the outer barrel (201), the number of the side holes (207) is two and symmetrically distributed on the outer barrel (201), the side holes (207) penetrate the outer barrel (201), the heating plate (202) and the inner barrel (203), and a filter screen (207) is fixedly provided inside the side hole (207) 08), the filter screen (208) is located on the circumferential surface of the inner barrel (203), the bottom of the barrel cover (209) is fixedly connected to a temperature and humidity sensor (210) and an air pressure sensor (214), the top of the barrel cover (209) is fixedly connected to a pressure relief pipe (211), the circumferential surface of the pressure relief pipe (211) is fixedly connected to a pressure relief valve (212), and the circumferential surface of the barrel cover (209) is fixedly connected to a spring female buckle (213), and the number of the spring female buckles (213) is provided and is evenly distributed on the barrel cover (209).

2. The low-adhesion sterilized gauze preparation device according to claim 1, characterized in that: The outer barrel (201) is fixedly connected to a rear air pipe (4), a right air pipe (6) and a left air pipe (16) on the circumferential surface thereof; the right side of the right air pipe (6) is fixedly connected to a right air pump (5); the rear side wall of the right air pump (5) is fixedly connected to a rear connecting pipe (7); the circumferential surface of the rear connecting pipe (7) is fixedly connected to a rear valve (9); the rear side wall of the rear connecting pipe (7) is fixedly connected to a steam generator (8); the right side wall of the right air pump (5) is fixedly connected to a right connecting pipe (10); the circumferential surface of the right connecting pipe (10) is fixedly connected to a right valve (11); the right side wall of the right connecting pipe (10) is fixedly connected to an insulation box (12); the inner bottom surface of the insulation box (12) is fixedly connected to a heating plate (13); and the inner top surface of the insulation box (12) is fixedly connected to a temperature sensor (14).

3. The low-adhesion sterilized gauze preparation device according to claim 2, characterized in that: A left air pump (15) is fixedly connected to the left side wall of the left air pipe (16), a left connecting pipe (17) is fixedly connected to the left side wall of the left air pump (15), a left valve (18) is fixedly connected to the circumferential surface of the left connecting pipe (17), a cold air box (19) is fixedly connected to the left side wall of the left connecting pipe (17), a refrigerator (20) is fixedly connected to the rear side wall of the cold air box (19), an ultraviolet lamp (21) is fixedly connected to the inner top surface of the cold air box (19), and an air inlet pipe (22) is fixedly connected to the top of the cold air box (19).

4. The low-adhesion sterilized gauze preparation device according to claim 3, characterized in that: The vacuum pump (3) is located at the rear of the disinfection component (2), the right air pump (5) is located at the right side of the disinfection component (2), the steam generator (8) is located at the rear of the right air pump (5), the heat preservation box (12) is located at the right side of the right air pump (5), the left air pump (15) is located at the left side of the disinfection component (2), and the cold air box (19) is located at the left side of the left air pump (15).

5. The low-adhesion sterilized gauze preparation device according to claim 1, characterized in that: A main motor is fixedly connected to the bottom of the workbench (1), and a top output end of the main motor is fixedly connected to a stirring shaft (204).

6. The low-adhesion sterilized gauze preparation device according to claim 3, characterized in that: The right trachea (6) and the left trachea (16) are both located inside the side hole (207).

7. The low-adhesion sterilized gauze preparation device according to claim 1, characterized in that: The spring sub-buckle (206) and the spring female buckle (213) are arranged correspondingly.

8. The low-adhesion sterilized gauze preparation device according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected with pillars (23), and the number of the pillars (23) is four and they are symmetrically distributed at the four corners of the bottom of the workbench (1).

9. A method for preparing low-adhesion sterilized gauze, based on a low-adhesion sterilized gauze preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, take absorbent gauze, put it into the inner barrel (203), then cover the barrel cover (209), and lock the spring sub-buckle (206) and the spring female buckle (213); S2, starting the vacuum pump (3) to evacuate the gas in the inner barrel (203), then starting the steam generator (8) to continuously inject high-temperature steam into the inner barrel (203) through the right air pump (5); S3, starting the main motor to rotate the stirring shaft (204), and the stirring blade (205) sterilizes the internal absorbent gauze at high temperature and high pressure; S4, after a period of time, the right air pump (5) is started to inject the high-temperature and high-pressure steam in the inner barrel (203) into the heat preservation box (12), and the recovery is completed for the convenience of next use. The left air pump (15) is started to inject the cold air in the cold air box (19) that has been sterilized by the ultraviolet lamp tube (21) into the inner barrel (203), so that the absorbent gauze is quickly cooled. After completion, the left air pump (15) is started to extract the cold air in the inner barrel (203) and return it to the cold air box (19); S5, open the barrel cover (209), take out the absorbent gauze, and cut the absorbent gauze into small pieces of 5cm*5cm; S6, add 1 mol of ethylenediamine to a 500 mL three-necked flask, add 20 mL of ethanol, and then add 1 mol of methyl acrylate dropwise to the three-necked flask using a constant pressure dropping funnel, and react at room temperature for 2 h; S7, heat the three-necked flask to 60 °C, remove the solvent in vacuo, then heat it to 100 °C and continue the reaction for 2 h; S8, after the solution in the three-necked flask is cooled to room temperature, 1 mol of propylene oxide is added, and the three-necked flask is heated again, and the reaction is carried out at 100° C. for 2 hours to obtain a hyperbranched polyamide, and then the hyperbranched polyamide is prepared into a 10 g / L aqueous solution; S9, blending a saturated aqueous solution of silver acetate with an aqueous solution of a hyperbranched polyamide amine, adding 2% triethyl glycerol, stirring for 1 hour to obtain a hyperbranched polyamide amine / Ag+ composite solution, and then soaking a 5*5 cm gauze in the composite solution, taking it out after 3 seconds, to obtain an antibacterial gauze with low tissue adhesion and effective bactericidal activity; S10, the gauze obtained in S9 is put into the inner barrel (203) again, the vacuum pump (3) is started to extract the air in the inner barrel (203), the heating plate (202) is started to heat the inner barrel (203), after heating for a period of time, the vacuum pump (3) is started to extract the internal gas, after the gauze is sterilized and dried, the cold air in the cold air box (19) is injected, and after cooling, the gauze is taken out for packaging.

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