Sterilizing device of positive pressure protective hood

Abstract

The utility model provides a disinfection device for a positive pressure protection hood. The disinfection device comprises a delivery window, a hydrogen peroxide disinfector, a plurality of brackets and an air pump. A closed space is formed in the delivery window, and the aerosol generator is used for converting disinfection liquid into aerosol for disinfection, so that the interior of the delivery window is filled with the aerosol for disinfection. The support is used for installing the positive pressure protection hood. The sucking pump is connected with the breathing tube of the positive pressure protection hood to form negative pressure in the breathing tube, so that aerosol for disinfection enters the positive pressure protection hood and is sucked out through the breathing tube of the positive pressure protection hood. According to the application, the outer surface and the inner surface of the positive pressure protection hood can be fully disinfected.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory disinfection, and in particular to a disinfection device for a positive pressure protective hood. Background Art

[0002] Personal protective equipment (PPE) is the last line of defense to isolate laboratory personnel from pathogenic microorganisms. The use of personal protective equipment is considered one of the most important measures for medical staff and biosafety laboratory workers to protect themselves from infectious pathogenic microorganisms. The positive pressure protective hood can isolate droplets and aerosols in the working environment, greatly reducing the risk of infection for workers. It is an important personal biological protective equipment in high-level biosafety laboratories and is widely used in the biosafety protection of workers in high-risk biological hazard environments. At the same time, the positive pressure protective hood is also a must-have equipment for high-risk operations such as surgery on infectious patients and endotracheal intubation. After one use, the positive pressure protective hood needs to be cleaned and disinfected before the next use.

[0003] In the prior art, surface disinfection methods are usually used, such as spraying or wiping disinfection with 75% ethanol, mixed quaternary ammonium salts, chlorine-containing disinfectants, etc. However, when using chlorine-containing disinfectants for surface disinfection, it is only suitable for disinfecting the outer surface of the positive pressure protective hood. After the inner surface is disinfected, there will be a pungent smell, which will affect the next use of the experimenter. When using organic solvents such as alcohol for disinfection, the face shield of the positive pressure protective hood will become blurred during the spraying and wiping process, which introduces unsafe factors into the experiment. In the prior art, ultraviolet irradiation disinfection or hydrogen peroxide vapor fumigation is also used for disinfection. Because the positive pressure protective hood has a complex structure and a limited surface coverage, it is only suitable for disinfecting the outer surface during daily use, and the disinfection effect is limited. It is also impossible to disinfect the inner surface of the hood, which poses a potential risk.

[0004] Due to the complex structure of the positive pressure protective hood and the limited surface coverage, only the outer surface is disinfected during daily use, which has limited disinfection effect and cannot disinfect the inner surface of the hood, which poses potential risks. Due to the structural limitations of the positive pressure protective hood, it cannot be cleaned and disinfected by soaking.

[0005] In summary, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0006] The purpose of the embodiments of the present application is to provide a disinfection device for a positive pressure protective head cover, which can fully disinfect the inner surface and the outer surface of the positive pressure protective head cover.

[0007] The present application provides a disinfection device for a positive pressure protective hood, comprising:

[0008] The transfer window comprises a box body and a door; the box body is used to place a positive pressure protective hood, and after the door is closed, a closed space is formed in the transfer window;

[0009] A hydrogen peroxide sterilizer is disposed in the transfer window, and is used to convert the sterilizing liquid into a sterilizing aerosol, so that the sterilizing aerosol fills the interior of the transfer window;

[0010] At least one bracket is arranged in the transfer window; the bracket includes a base, a first connecting rod and a first supporting part, the first connecting rod is used to connect the base and the first supporting part, the first supporting part includes a plurality of first supporting rods, one end of each of the first supporting rods is fixedly connected to the top end of the first connecting rod, and the other end of the first supporting rod extends outward and then bends downward, so that the top surfaces of the plurality of first supporting rods jointly form a circular arc supporting surface, and the circular arc supporting surface is used to support the positive pressure protective head cover;

[0011] The vacuum pump is arranged in the transfer window and includes a vacuum pipe, which is used to be connected to the breathing tube of the positive pressure protective hood; the vacuum pump is used to form a negative pressure inside the breathing tube so that the disinfection aerosol enters the inside of the positive pressure protective hood and is extracted through the breathing tube of the positive pressure protective hood.

[0012] The transfer window is an auxiliary equipment for biosafety laboratories and negative pressure wards. It is mainly used for the transfer of small items between protection areas and protection areas, and between non-protection areas and protection areas, so as to reduce the number of times the door of the protection area is opened and maximize the pressure difference between the protection area and the adjacent area. The transfer window is widely used in micro-technology, biological laboratories, pharmaceutical factories, hospitals, food processing industries, LCDs, electronics factories and other places that need to maintain pressure difference and (or) maintain air cleanliness.

[0013] In an practicable manner, the air extraction pipe is connected to a multi-way valve, the multi-way valve comprises an air outlet and a plurality of air inlets, and the air extraction pipe is connected to the air outlet.

[0014] In one practicable manner, the bracket includes a second support portion for supporting the lower part of the positive pressure protective head cover, the second support portion includes a second connecting rod, one end of the second connecting rod is obliquely connected to the first connecting rod, and a second support rod is arranged at the other end of the second connecting rod.

[0015] In one practicable manner, the position of the second supporting portion on the first connecting rod is adjustable.

[0016] In an practicable manner, the other end of the second connecting rod is connected to the first connecting rod via a sliding sleeve, the sliding sleeve is sleeved on the first connecting rod, a fastener is provided on the sliding sleeve, and the sliding sleeve is releasably connected to the first connecting rod via the fastener.

[0017] In an operative manner, the second support rod is arc-shaped, and a middle portion of the second support rod is fixedly connected to an end portion of the second connecting rod.

[0018] In an practicable manner, an articulated seat is provided on the sliding sleeve, and the second connecting rod is connected to the sliding sleeve via the articulated seat in an angle-adjustable manner.

[0019] In one practicable manner, the first connecting rod is a pull-out rod.

[0020] In an operative manner, the base is a ring-shaped base, and a diameter of the ring-shaped base is larger than a diameter of a circular surface of an orthographic projection of the first support portion.

[0021] In one practicable manner, a ball valve is provided at the air inlet of the multi-way valve.

[0022] Compared with the prior art, the beneficial effects of this application are:

[0023] In the technical solution of the present application, the outer surface and the inner surface of the positive pressure protective hood can be fully disinfected.

[0024] By using the transfer window as the disinfection chamber, the laboratory space and equipment expenses can be saved while ensuring the disinfection effect.

[0025] By setting the bracket, the positive pressure protective hood can be placed at a predetermined position for disinfection, avoiding contact between the positive pressure protective hood and the inner wall of the transfer window and between two adjacent positive pressure protective hoods, thereby ensuring the disinfection effect.

[0026] By arranging the hydrogen peroxide sterilizer and the transfer window, the positive pressure protective hood is immersed in the sterilization environment, thereby ensuring the sterilization effect of the outer surface of the positive pressure protective hood.

[0027] By setting the second supporting part, the hem of the positive pressure protective hood is propped up to ensure that the disinfection aerosol can enter the interior of the positive pressure protective hood through the bottom of the positive pressure protective hood for complete disinfection, thereby ensuring the disinfection effect.

[0028] By setting the sliding sleeve, the height and the inclination angle of the second supporting part can be adjusted to meet the use requirements of various models of positive pressure protective head covers.

[0029] By setting the vacuum pump, negative pressure is formed inside the breathing tube, which enables the disinfection aerosol to dynamically disinfect the inside of the positive pressure protective hood, thereby ensuring the disinfection effect of the inner surface of the positive pressure protective hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a structural schematic diagram of a disinfection device for a positive pressure protective head cover according to an embodiment of the utility model.

[0031] Figure 2 It is a structural schematic diagram of a bracket in a disinfection device of a positive pressure protective head cover according to an embodiment of the utility model.

[0032] Figure 3 It is a usage state diagram of the disinfection device of the positive pressure protective head cover according to the embodiment of the utility model.

[0033] The reference numerals are described as follows:

[0034] 1. Bracket; 11. First supporting part; 12. Second supporting part; 13. Sliding sleeve; 14. Base; 2. Positive pressure protective hood; 3. Breathing tube; 4. Three-way valve; 5. Air pump; 6. Aerosol generator. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0039] See also Figures 1 to 3 The present application provides a positive pressure protective head cover disinfection device, comprising:

[0040] The transfer window comprises a box body and a door; the box body is used to place the used positive pressure protective hood 2, and after closing the door, the positive pressure protective hood 2 is disinfected in the confined space in the transfer window;

[0041] It should be noted that the transfer window is an auxiliary equipment for biosafety laboratories and negative pressure wards, mainly used for the transfer of small items between protection areas and protection areas, non-protection areas and protection areas, so as to reduce the number of times the protection area is opened and maximize the pressure difference between the protection area and the adjacent area. Transfer windows are widely used in micro-technology, biological laboratories, pharmaceutical factories, hospitals, food processing industries, LCDs, electronics factories and other places that need to maintain pressure differences and / or maintain air cleanliness.

[0042] It should also be noted that a transparent viewing window is provided on the box door to facilitate observation of the situation inside the transfer window.

[0043] an aerosol generator 6, disposed in the transfer window, and used to convert the disinfection liquid into an aerosol so that the aerosol fills the interior of the transfer window;

[0044] At least one bracket 1 is arranged in the transfer window and is used to install the positive pressure protective head cover 2; each of the brackets 1 includes a base 14, a first connecting rod and a first supporting part 11, the first connecting rod is used to connect the base 14 and the first supporting part 11, the first supporting part 11 includes at least a plurality of first supporting rods, one end of each of the first supporting rods is fixedly connected to the top end of the first connecting rod, the other end of the first supporting rod extends outward and then bends downward, so that the top surfaces of the plurality of first supporting rods jointly form an arc supporting surface, and the arc supporting surface is used to support the positive pressure protective head cover 2, so that the positive pressure protective head cover 2 is sleeved on the arc supporting surface, and is arranged to fit with the inner surface of the positive pressure protective head cover 2 to ensure the stability of the positive pressure protective head cover 2 during the disinfection process.

[0045] The air pump 5 is arranged in the transfer window and includes an air extraction pipe, and the air extraction pipe is used to be connected to the breathing tube 3 of the positive pressure protective hood 2. The air extraction pump 5 is used to form a negative pressure inside the breathing tube 3, so that the disinfection aerosol enters the inside of the positive pressure protective hood 2 for disinfection and is extracted through the breathing tube 3. The air extraction pipe is connected to a multi-way valve, and the multi-way valve includes an air outlet and multiple air inlets, and the air extraction pipe is connected to the air outlet.

[0046] It should be noted that the wireless vacuum pump 5 is used in this embodiment. By turning on the vacuum pump 5, the aerosol flows in the transfer window, and the outer surface of the positive pressure protective hood 2 is completely immersed in the aerosol. At the same time, the inner surface of the positive pressure protective hood 2 is disinfected by the flowing aerosol.

[0047] It should also be noted that if Figure 1 and Figure 3 As shown, in this embodiment, two brackets 1 are provided to sterilize two positive pressure protective head covers 2, and the multi-way valve is set as a three-way valve 4.

[0048] Specifically, Figure 1 As shown, the air inlet of the three-way valve 4 includes a first air inlet and a second air inlet, and ball valves are respectively arranged at the first air inlet and the second air inlet. By respectively controlling the ball valves on the pipeline where the first air inlet or the second air inlet is located, the opening and closing of the pipeline where the first air inlet or the second air inlet is located is controlled to meet the usage scenario where only one positive pressure protective hood 2 needs to be disinfected.

[0049] In an practicable manner, the disinfection time of the present application is less than or equal to 4 hours. The disinfection time in this embodiment is 1.5-3 hours, which can ensure the disinfection effect.

[0050] In an operative manner, the support 1 further comprises a second support portion 12 for supporting the lower hem portion of the positive pressure protective hood 2. The second support portion comprises a second connecting rod, one end of which is obliquely connected to the first connecting rod, and a second supporting rod is arranged at the other end of the second connecting rod. By setting the second support portion 12, it is ensured that the disinfection aerosol can smoothly enter the interior of the positive pressure protective hood 2 and be drawn out through the breathing tube 3, ensuring that there is no disinfection dead corner inside the positive pressure protective hood 2, so that the disinfection aerosol flows smoothly and the disinfection effect is ensured.

[0051] In one practicable manner, the position of the second supporting portion 12 on the first connecting rod is adjustable.

[0052] Specifically, Figure 2 As shown, the second connecting rod is connected to the first connecting rod through a sliding sleeve 13, the sliding sleeve 13 is sleeved on the first connecting rod, a fastener is arranged on the sliding sleeve 13, and the sliding sleeve 13 is releasably connected to the first connecting rod through the fastener.

[0053] In one practicable manner, the second support rod is arc-shaped, and the middle portion of the second support rod is fixedly connected to the end portion of the second connecting rod. By setting the second support rod to be arc-shaped, it is possible to prevent the second support rod from puncturing the lower hem of the positive pressure protective headgear during the supporting process, thereby avoiding damage.

[0054] In an practicable manner, a hinge seat is provided on the sliding sleeve 13, and the second connecting rod is connected to the sliding sleeve 13 through the hinge seat in an adjustable angle. After adjusting the inclination angle of the second connecting rod through the hinge seat, the second connecting rod is fixed to the hinge seat, and the inclination angle of the second connecting rod is adjusted to support different types of positive pressure protective head covers 2, so as to ensure that the lower part of the positive pressure protective head cover 2 can be fully propped up, and ensure that the disinfection aerosol can smoothly enter the interior of the positive pressure protective head cover 2 for disinfection.

[0055] In this embodiment, two brackets 1 are provided, so that two positive pressure protective hoods 2 can be disinfected at the same time, ensuring that the positive pressure protective hoods 2 are not in contact with the transfer window or with each other.

[0056] In an practicable manner, the base 14 is a circular base 14, which can reduce its own weight while ensuring stability; three reinforcing ribs are evenly distributed in the circular base 14, and each reinforcing rib starts from the center of the circular base 14, extends to the edge of the circular base 14 and is fixed. The angle between two adjacent reinforcing ribs is 120°, which can ensure stability.

[0057] In an practicable manner, the diameter of the annular base 14 is larger than the diameter of the orthographic circular surface of the first support portion 11, so as to ensure that the positive pressure protective head cover 2 can remain stable during the disinfection process after being covered on the first support portion 11.

[0058] Specifically, Figure 2 As shown, each of the first supporting parts 11 includes 6 arc-shaped first supporting rods, and the 6 first supporting rods are evenly distributed at the top end of the first connecting rod.

[0059] In one practicable manner, the length of the first connecting rod is adjustable. The first connecting rod is a pull-out rod, and the length can be adjusted according to different requirements to support positive pressure protective head covers 2 of different models.

[0060] It should be noted that the disinfectant added into the aerosol generator 6 is a hydrogen peroxide solution.

[0061] In summary, the positive pressure protective hood disinfection device provided by the present application can fully disinfect the outer surface and inner surface of the positive pressure protective hood 2. By using the transfer window as the disinfection chamber, the space of the laboratory is saved and the equipment cost is saved under the premise of ensuring the disinfection effect. Through the setting of the bracket 1, the positive pressure protective hood 2 can be set at a predetermined position for disinfection, avoiding the positive pressure protective hood 2 and the inner wall of the transfer window, and contact between two adjacent positive pressure protective hoods 2, and ensuring the disinfection effect. Through the setting of the aerosol generator 6 and the transfer window, the positive pressure protective hood 2 is immersed in the disinfection environment to ensure the disinfection effect of the outer surface of the positive pressure protective hood 2. Through the setting of the second support part 12, the hem of the positive pressure protective hood 2 is propped up to ensure that the disinfection aerosol can enter the interior of the positive pressure protective hood 2 through the lower part of the positive pressure protective hood 2 for no dead angle disinfection, and ensure the disinfection effect. Through the setting of the sliding sleeve 13, the height and inclination angle of the second support part 12 are adjusted to meet the use needs of various models of positive pressure protective hoods 2. By providing the suction pump 5 , negative pressure is formed inside the breathing tube 3 , so that the disinfection aerosol can be dynamically disinfected inside the positive pressure protective hood 2 , thereby ensuring the disinfection effect of the inner surface of the positive pressure protective hood 2 .

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A positive pressure protective head cover disinfection device, characterized in that: include: The transfer window comprises a box body and a door; the box body is used to place a positive pressure protective hood, and after the door is closed, a closed space is formed in the transfer window; A hydrogen peroxide sterilizer is disposed in the transfer window, and is used to convert hydrogen peroxide disinfectant into a disinfection aerosol, so that the disinfection aerosol fills the interior of the transfer window; At least one bracket is arranged in the transfer window; the bracket includes a base, a first connecting rod and a first supporting part, the first connecting rod is used to connect the base and the first supporting part, the first supporting part includes a plurality of first supporting rods, one end of each of the first supporting rods is fixedly connected to the top end of the first connecting rod, and the other end of the first supporting rod extends outward and then bends downward, so that the top surfaces of the plurality of first supporting rods jointly form a circular arc supporting surface, and the circular arc supporting surface is used to support the positive pressure protective head cover; The vacuum pump is arranged in the transfer window and includes a vacuum pipe, which is used to be connected to the breathing tube of the positive pressure protective hood; the vacuum pump is used to form a negative pressure inside the breathing tube so that the disinfection aerosol enters the inside of the positive pressure protective hood and is extracted through the breathing tube of the positive pressure protective hood.

2. The disinfection device for the positive pressure protective head cover according to claim 1, characterized in that: The air extraction pipe is connected to a multi-way valve, the multi-way valve comprises an air outlet and a plurality of air inlets, and the air extraction pipe is connected to the air outlet.

3. The disinfection device for the positive pressure protective head cover according to claim 1, characterized in that: The bracket includes a second supporting portion for supporting the lower part of the positive pressure protective head cover, the second supporting portion includes a second connecting rod, one end of the second connecting rod is obliquely connected to the first connecting rod, and the other end of the second connecting rod is provided with a second supporting rod.

4. The disinfection device for the positive pressure protective head cover according to claim 3, characterized in that: The position of the second supporting portion on the first connecting rod is adjustable.

5. The disinfection device for the positive pressure protective head cover according to claim 4, characterized in that: The second connecting rod is connected to the first connecting rod via a sliding sleeve, the sliding sleeve is sleeved on the first connecting rod, a fastener is arranged on the sliding sleeve, and the sliding sleeve is releasably connected to the first connecting rod via the fastener.

6. The disinfection device for the positive pressure protective head cover according to claim 3, characterized in that: The second support rod is arc-shaped, and the middle portion of the second support rod is fixedly connected to the end portion of the second connecting rod.

7. The disinfection device for the positive pressure protective head cover according to claim 5, characterized in that: An articulated seat is arranged on the sliding sleeve, and the second connecting rod is connected to the sliding sleeve via the articulated seat in an angle-adjustable manner.

8. The disinfection device for the positive pressure protective head cover according to claim 1, characterized in that: The first connecting rod is a pull-out rod.

9. The disinfection device for the positive pressure protective head cover according to claim 1, characterized in that: The base is a circular ring-shaped base, and the diameter of the circular ring-shaped base is larger than the diameter of the orthographic projection circular surface of the first supporting portion.

10. The disinfection device for the positive pressure protective head cover according to claim 2, characterized in that: A ball valve is arranged at the air inlet of the multi-way valve.

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