CN114432479A - Pulse type gas disinfection and sterilization method and system - Google Patents
Pulse type gas disinfection and sterilization method and system Download PDFInfo
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- CN114432479A CN114432479A CN202210164021.1A CN202210164021A CN114432479A CN 114432479 A CN114432479 A CN 114432479A CN 202210164021 A CN202210164021 A CN 202210164021A CN 114432479 A CN114432479 A CN 114432479A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 224
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 38
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 290
- 239000007789 gas Substances 0.000 claims abstract description 99
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 17
- 238000000889 atomisation Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004887 air purification Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000001574 biopsy Methods 0.000 description 5
- 230000000249 desinfective effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/208—Hydrogen peroxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/121—Sealings, e.g. doors, covers, valves, sluices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/123—Connecting means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/18—Aseptic storing means
- A61L2202/182—Rigid packaging means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Endoscopes (AREA)
Abstract
The invention provides a pulse type gas disinfection and sterilization method and a pulse type gas disinfection and sterilization system, which are applied to a soft endoscope sterilization system, and the method comprises the following steps: generating hydrogen peroxide gas by using a hydrogen peroxide atomizing chamber; generating a pressure environment through an internal cavity and/or an endoscope pipeline corresponding to any disinfection box in the multi-layer disinfection box shelf, and enabling the hydrogen peroxide gas to flow into the internal cavity and/or the endoscope pipeline so as to disinfect the internal cavity and/or the endoscope pipeline by utilizing the hydrogen peroxide gas; and the hydrogen peroxide gas passing through the sterilizing box flows into the hydrogen peroxide decomposition system, is decomposed and then is discharged out of the sterilizing system. The invention can place a plurality of special soft endoscope disinfection boxes in the disinfection system to simultaneously and independently disinfect the soft endoscope disinfection boxes, adopts hydrogen peroxide gas for disinfection, has no harmful residue, and greatly reduces the consumption of hydrogen peroxide compared with immersion disinfection.
Description
Technical Field
The invention relates to the technical field of soft endoscope sterilization, in particular to a pulse type gas sterilization method and a pulse type gas sterilization system.
Background
The soft endoscope is used as an extension of eyes and hands of doctors, and the modern endoscope not only can carry out accurate diagnosis, but also can carry out under-lens minimally invasive treatment and minimally invasive surgery, and is particularly widely applied to the digestive soft endoscope. Along with the higher and higher utilization rate of the soft endoscope, the disinfection requirement on the soft endoscope is more and more urgent, and the requirement on the disinfection efficiency is higher and higher. In addition, the unevenness of the surface of the endoscope pipeline directly causes the formation of bacterial biofilm, which causes great difficulty in the disinfection of the soft endoscope.
Disclosure of Invention
In view of the above, the present invention provides a pulsed gas sterilization method and sterilization system that overcomes, or at least partially solves, the above-mentioned problems.
The embodiment of the invention provides a pulse type gas disinfection and sterilization method, which is applied to a soft endoscope sterilization system, wherein the soft endoscope sterilization system comprises a multilayer disinfection box shelf, a hydrogen peroxide atomization chamber and a hydrogen peroxide decomposition system which are sequentially connected, the multilayer disinfection box shelf is provided with at least one soft endoscope sterilization box, and the method comprises the following steps:
generating hydrogen peroxide gas by using the hydrogen peroxide atomizing chamber;
generating a pressure environment through an inner cavity corresponding to any one of the multiple layers of disinfection box shelves and/or an endoscope pipeline of the soft endoscope, and enabling the hydrogen peroxide gas to flow into the inner cavity and/or the endoscope pipeline so as to disinfect the endoscope surface of the soft endoscope and/or the endoscope pipeline by utilizing the hydrogen peroxide gas;
and the hydrogen peroxide gas passing through the sterilizing box flows into the hydrogen peroxide decomposition system, is decomposed and then is discharged out of the sterilizing system.
Optionally, a micro compressed air pump is arranged between each disinfection box and the hydrogen peroxide atomization chamber;
a first air inlet valve is arranged between the miniature compressed air pump and the sterilizing box and used for controlling the hydrogen peroxide gas to flow into or stop flowing into the inner cavity of the sterilizing box; a second air inlet valve is arranged between the micro compressed air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow into or stop flowing into the endoscope pipeline;
a micro vacuum air pump is arranged between each disinfection box and the hydrogen peroxide decomposition system; a first exhaust valve is arranged between the micro vacuum air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow out or stop flowing out and flowing into the inner cavity of the disinfection box; and a second exhaust valve is arranged between the micro vacuum air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow out or stop flowing out and flowing into the endoscope pipeline.
Optionally, the generating a pressure environment through an internal cavity corresponding to any sterilization box in the multi-layer sterilization box shelf and/or an endoscope tube of the soft endoscope, so that the flowing of the hydrogen peroxide gas into the internal cavity and/or the endoscope tube includes:
closing the first exhaust valve correspondingly connected with any one of the disinfection boxes, and opening the first air inlet valve correspondingly connected with the disinfection box so as to generate a pressure environment in the internal cavity of the disinfection box, so that the hydrogen peroxide gas flows into the internal cavity;
and closing the second exhaust valve correspondingly connected with the disinfection box and opening the second air inlet valve so as to generate a pressure environment in the endoscope pipeline and enable the hydrogen peroxide gas to flow into the endoscope pipeline.
Optionally, after the pressure environment is generated by the internal cavity corresponding to any disinfection box in the multi-layer disinfection box shelf and/or the endoscope pipeline of the soft endoscope, the method further comprises:
and periodically opening or closing the first exhaust valve and/or the second exhaust valve so that the hydrogen peroxide gas can fully contact the internal cavity and the internal pipeline of the sterilizing box.
Optionally, a first control valve is arranged between the miniature compressed air pump and the hydrogen peroxide atomization chamber;
before the generating hydrogen peroxide gas using the hydrogen peroxide atomization chamber, the method further comprises: and opening the first control valve.
Optionally, the sterilization system further comprises an air filtration system, which is arranged at the air inlet of the sterilization system and is communicated with each sterilization box;
the air filtering system is connected with the miniature compressed air pumps correspondingly arranged on the disinfection boxes, and a second control valve is arranged on a connecting pipeline of the air filtering system and the miniature compressed air pumps;
the disinfection box is provided with a pressure sensor connected with the external connection of the internal cavity, and a sensor valve is arranged on a connecting pipeline of the pressure sensor and the disinfection box.
Optionally, after the sterilizing the endoscope surface and/or the endoscope channel of the soft endoscope with the hydrogen peroxide gas, the method further comprises: and carrying out leakage detection on the disinfection box.
Optionally, the performing leak testing on the sterilization cassette comprises:
closing the first exhaust valve, the second exhaust valve and the first control valve, and opening the sensor valve and the second control valve to keep the inside of the disinfection box at the same atmospheric pressure as the outside environment;
the micro compressed air pump is used for enabling the air purified by the air purification system to flow into the internal pipeline and/or the internal cavity of the disinfection box, the internal pressure of the disinfection box reaches a set value higher than the atmospheric pressure, and the second control valve is closed and kept still for a certain time;
if the pressure value inside the disinfection box is stabilized within the allowable difference value range, the disinfection box is indicated to be free of leakage.
Optionally, the sterilization system further comprises a heating air chamber, which is communicated with the hydrogen peroxide atomization chamber and is arranged between the hydrogen peroxide atomization chamber and the first control valve; said flowing said hydrogen peroxide gas into said internal cavity and/or endoscope channel comprises:
the hydrogen peroxide gas generated by the hydrogen peroxide atomization chamber is heated by the hot air heating chamber and then flows into the internal cavity and/or the endoscope pipeline;
the soft endoscope disinfection box is internally provided with a heating constant temperature device so as to keep the inner part of the soft endoscope disinfection box at a constant temperature.
Optionally, the endoscope tube of the soft endoscope comprises a water injection tube, an air injection tube, a biopsy tube and a suction tube.
According to another aspect of the present invention, there is also provided a soft endoscope sterilization system used in the above method, the sterilization system comprising: multilayer disinfection box shelf, hydrogen peroxide atomizer chamber and the hydrogen peroxide decomposition system that connect gradually, multilayer disinfection box shelf is equipped with at least one soft scope disinfection box.
The invention provides a pulse type gas disinfection and sterilization method, which is characterized in that a plurality of special soft endoscope disinfection boxes can be placed in a sterilization system to simultaneously and independently disinfect the soft endoscope disinfection boxes, hydrogen peroxide gas is adopted for disinfection, no harmful residue exists, the hydrogen peroxide consumption is greatly reduced by relative immersion disinfection, and the influence of other disinfection boxes can be avoided in the process of disinfecting and sterilizing each disinfection box. In addition, the soft endoscope sterilization system of the embodiment utilizes hydrogen peroxide gas to carry out high-level disinfection on the surface of the endoscope pipeline and the outer surface of the endoscope, and preserves the disinfected endoscope, thereby avoiding secondary pollution. Through putting into soft scope disinfection box with soft scope, both disinfection convenient and fast, the transport of being convenient for again, great improvement the cyclic utilization rate of scope.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart of a pulsed gas sterilization method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a soft endoscope sterilization system according to an embodiment of the present invention;
figure 3 is a schematic structural view of a flexible endoscope according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a soft endoscope disinfection box according to an embodiment of the present invention;
figure 5 is a schematic view of a flexible endoscope according to an embodiment of the present invention;
the system comprises a hydrogen peroxide atomization chamber, a first control valve, a multi-layer disinfection box shelf, a soft endoscope disinfection box, a hydrogen peroxide decomposition system, a miniature compressed air pump, a first air inlet valve, a second air inlet valve, a heating air chamber, a vacuum air pump, a first exhaust valve, a second exhaust valve, a pressure sensor, an air filtration system and a second control valve, wherein the hydrogen peroxide atomization chamber is 10, the first control valve is 11, the multi-layer disinfection box shelf is 20, the soft endoscope disinfection box is 21, the hydrogen peroxide decomposition system is 30, the miniature compressed air pump is 40, the first air inlet valve is 41, the second air inlet valve is 42, the heating air chamber is 50, the miniature vacuum air pump is 60, the first exhaust valve is 61, the second exhaust valve is 62, the pressure sensor is 70, the pressure sensor is 71, the pressure sensor valve is 80, and the second control valve is 81.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Fig. 1 is a schematic flow chart of a pulse gas sterilization method according to an embodiment of the present invention, which can be applied to the soft endoscope sterilization system shown in fig. 2.
As shown in fig. 2, the soft endoscope sterilization system of the present embodiment may include a hydrogen peroxide atomization chamber 10, a multi-layered sterilization cassette rack 20, and a hydrogen peroxide decomposition system 30. Wherein, the multi-layer disinfection box shelf 20 is provided with at least one soft endoscope disinfection box (disinfection box for short) 21. The hydrogen peroxide atomization chamber 10 is connected with the sterilization boxes 21 arranged on the multi-layer sterilization box shelf 20, and is used for generating hydrogen peroxide gas after atomization is performed on the basis of hydrogen peroxide liquid, so that the hydrogen peroxide gas is used for sterilizing the endoscope surface and/or the endoscope pipeline of the soft endoscope in each sterilization box 21. And the hydrogen peroxide decomposition system 30 is arranged at an air outlet of the sterilization system, and hydrogen peroxide gas passing through each disinfection box 21 is decomposed by the hydrogen peroxide decomposition system 30 and then is output to the sterilization system. The pulse type gas disinfection and sterilization method of the embodiment can comprise the following steps:
s1, generating hydrogen peroxide gas by using the hydrogen peroxide atomization chamber;
s2, generating a pressure environment through an inner cavity corresponding to any disinfection box in the multi-layer disinfection box shelf and/or an endoscope pipeline of the soft endoscope, and enabling the hydrogen peroxide gas to flow into the inner cavity and/or the endoscope pipeline so as to disinfect the endoscope surface and/or the endoscope pipeline of the soft endoscope by using the hydrogen peroxide gas;
and S3, the hydrogen peroxide gas passing through the disinfection box flows into the hydrogen peroxide decomposition system, is decomposed and then is discharged out of the sterilization system.
The soft endoscope sterilization system of this embodiment is inside can place a plurality of special soft endoscope disinfection boxes 21 to disinfect alone a plurality of soft endoscope disinfection boxes 21 simultaneously, adopt hydrogen peroxide gas body disinfection, there is not harmful residue, and relative submergence is disinfected simultaneously, and hydrogen peroxide consumption significantly reduces, and carry out the sterile in-process of disinfecting at each disinfection box 21, can not receive the influence of other disinfection boxes 21. In addition, this embodiment disinfection box 21 has an internal cavity, soft scope can set up in internal cavity, and each scope pipeline of soft scope can also connect the disinfection box, therefore, the soft scope sterilization system of this embodiment utilizes hydrogen peroxide gas to input when disinfecting the internal cavity of box 21, can disinfect the surface of soft scope, through with hydrogen peroxide gas input soft scope's scope pipeline after, can carry out high level disinfection to the endoscope pipeline, and preserve the scope after the disinfection, avoid its secondary pollution. Through putting into soft scope disinfection box 21 with soft scope in, both disinfect convenient and fast, be convenient for transport again, great improvement the cyclic utilization rate of scope. The sterilization system of this embodiment can utilize the orderly coordination cooperation between each cavity and each valve according to self internal frame framework, can carry out three operating function of malleation air blowing, negative pressure suction and blow/bleed circulation to the internal cavity of each soft scope disinfection box 21 and the scope pipeline of soft scope.
It should be noted that the soft endoscope placed in the soft endoscope sterilizing box 21 is cleaned and dried, as shown in fig. 3 and 4, the endoscope lines of the soft endoscope may include a water injection line, a gas injection line, a biopsy line and a suction line. Fig. 3 shows a schematic diagram of a biopsy pipeline and a suction pipeline in the soft endoscope, and fig. 4 shows a schematic diagram of switching between an air injection pipeline and an air injection pipeline in the soft endoscope. After the cleaned and dried soft endoscope is placed in the special soft endoscope disinfection box 21, the connection between each pipeline of the endoscope and the inside of the endoscope disinfection box 21 is as shown in fig. 5.
In the sterilization system of this embodiment, when the hydrogen peroxide atomization chamber can be connected to each soft endoscope sterilization box 21 through a quick-insertion loose-joint plug, optionally, the sterilization box 21 is provided with a soft lens external loose-joint plug for connecting an internal cavity of the sterilization box 21, that is, a female head of the quick-insertion loose-joint plug, the hydrogen peroxide atomization chamber is provided with a connection pipeline, the connection pipeline is provided with a male head of the quick-insertion loose-joint plug, and when the male head and the female head are connected together, the connection pipeline of the hydrogen peroxide atomization chamber is communicated with the internal cavity of the sterilization box 21; when the male head and the female head are disconnected, the pipeline is blocked, optionally, a layer of filter membrane is arranged in the female head end, and bacteria, viruses and the like with the outer diameter can be prevented from entering the disinfection box 21, so that secondary pollution caused by the endoscope is prevented. In a similar way, the soft lens inside that is provided with on the disinfection box 21 and is used for connecting the soft lens pipeline is inserted alive, and gas is female equally, and hydrogen peroxide atomizer chamber can be through another connecting line that has public head to realize hydrogen peroxide atomizer chamber 10 and the connection of the scope pipeline of soft scope. Each sterilization case 21 in this embodiment is attached in the same manner.
As shown in fig. 2, a micro compressed air pump 40 is disposed between each sterilizing box 21 and the hydrogen peroxide atomization chamber 10, and a first control valve 11 is disposed between the micro compressed air pump 40 and the hydrogen peroxide atomization chamber 10, and is used for controlling the hydrogen peroxide gas to control the hydrogen peroxide gas to be input or stop being input into the sterilizing box 21. In this embodiment, before the hydrogen peroxide gas is generated by using the hydrogen peroxide atomization chamber, the first control valve needs to be opened. That is, only when the control valve 11 is opened, the hydrogen peroxide gas generated in the hydrogen peroxide atomization chamber 10 can be supplied to the sterilization case 21.
A first air inlet valve 41 is arranged between the miniature compressed air pump 40 and the sterilizing box 21 and is used for controlling the input of the hydrogen peroxide gas or stopping the input of the hydrogen peroxide gas into the inner cavity of the sterilizing box 21; a second air inlet valve 42 is arranged between the micro compressed air pump 40 and the sterilizing box 21 and is used for controlling the hydrogen peroxide gas to be input or stopping inputting the hydrogen peroxide gas into an endoscope pipeline of the soft endoscope in the sterilizing box 21. A micro vacuum air pump 60 is arranged between each disinfection box 21 and the hydrogen peroxide decomposition system 30; a first exhaust valve 61 is arranged between the micro vacuum air pump 60 and the sterilizing box 21 and used for controlling the output or stopping the output and input of the hydrogen peroxide gas into the inner cavity of the sterilizing box 21; a second exhaust valve 62 is arranged between the micro vacuum air pump 60 and the sterilizing box 21 and is used for controlling the output or stopping the output of the hydrogen peroxide gas to the endoscope pipeline of the soft endoscope in the sterilizing box 21.
In the step S2, generating a pressure environment through the inner cavity corresponding to any one of the multiple layers of sterilizing boxes and/or the endoscope tube of the flexible endoscope, so that flowing the hydrogen peroxide gas into the inner cavity and/or the endoscope tube may include:
s2-1, closing the first exhaust valve correspondingly connected with any one of the disinfection boxes, and opening the first air inlet valve correspondingly connected with the disinfection box so as to generate a pressure environment in the internal cavity of the disinfection box, so that the hydrogen peroxide gas flows into the internal cavity;
and S2-2, closing the second exhaust valve correspondingly connected with the disinfection box and opening the second air inlet valve so as to generate a pressure environment in the endoscope pipeline and enable the hydrogen peroxide gas to flow into the endoscope pipeline.
The diameter of the biopsy pipeline and the suction pipeline of the soft endoscope is 3mm to 5mm or even smaller, the diameter of the water injection pipeline and the gas injection pipeline is 1/15 of the biopsy/gas suction pipeline, hydrogen peroxide gas is injected into the endoscope pipeline only by positive pressure, the disinfection inside the pipeline is incomplete, the hydrogen peroxide gas is pumped into the endoscope pipeline by negative pressure, and the endoscope pipeline can be thoroughly disinfected: the air inlet of the machine pressurizes the hydrogen peroxide gas through the miniature compression air pump 40, and then the air outlet forms certain vacuum through the miniature vacuum air pump 60, so that the hydrogen peroxide gas can sufficiently disinfect the tail end of a pipeline.
When soft endoscope sterilization system carries out disinfection and sterilization to each soft endoscope in disinfection box 21 based on this embodiment, can close first exhaust valve 61 and the second exhaust valve 62 of connecting the negative pressure vacuum cavity earlier, open first air inlet valve 41 and the second air inlet valve 42 and the first control valve 11 of connecting the positive pressure hydrogen peroxide gas, the hydrogen peroxide gas of positive pressure fills soft endoscope disinfection box 21 and the inside pipeline of soft endoscope rapidly, through opening and closing first exhaust valve 61 and the second exhaust valve 62 of certain frequency, make hydrogen peroxide gas can be to the inside pipeline surface abundant contact of soft endoscope, thoroughly carry out no dead angle disinfection and processing.
Optionally, in the step S2, after the pressure environment is generated by the internal cavity corresponding to any one of the multiple layers of sterilizing boxes and/or the endoscope tube of the flexible endoscope, the first exhaust valve and/or the second exhaust valve may be periodically opened or closed, so that the hydrogen peroxide gas fully contacts the internal cavity and the internal tube of the sterilizing box.
That is to say, this embodiment can utilize frequent pressurization simultaneously and aerify and the carminative mode of pressure release at the in-process of disinfecting to the disinfection box, forms the shock to the pipeline inner wall, avoids the formation of bacterial biofilm on the inner wall, is a soft scope disinfection solution that efficiency is higher, the sterilization effect is better.
Optionally, the sterilization system of the present embodiment further includes an air filtering system 80 disposed at an air inlet of the sterilization system and communicated with each of the sterilization cases 21. The air filtering system 80 is connected to the micro compressed air pumps 40 correspondingly arranged in each disinfection box 21, and a second control valve 81 is arranged on a connecting pipeline between the air filtering system 80 and the micro compressed air pumps 40 and used for controlling the input of the purified air gas or stopping the input of the purified air gas into the disinfection boxes 21.
After the soft endoscope disinfection process, the first control valve 11, the first air inlet valve 41 and the second air inlet valve 42 from the hydrogen peroxide to the micro compressed air pump 40 are closed, the second control valve 81 of the air filtering system 80 is opened, clean air is circularly introduced into the soft endoscope disinfection box 21, residual hydrogen peroxide and moisture are taken away, the drying of an internal pipeline is accelerated, and simultaneously the discharged gas containing the residual hydrogen peroxide is decomposed and harmlessly through a hydrogen peroxide analysis net (containing hydrogen peroxide decomposition enzyme).
The disinfection box 21 is provided with a pressure sensor 70 connected with the external connection of the internal cavity, and a sensor valve is arranged on the connecting pipeline of the pressure sensor 70 and the disinfection box 21 and used for assisting the disinfection box 21 in carrying out leakage detection.
In an embodiment of the present invention, after the step S2 is to sterilize the endoscope surface and/or the endoscope channel of the soft endoscope with the hydrogen peroxide gas, the method further includes: and carrying out leakage detection on the disinfection box. Specifically, the performing of the leakage detection on the sterilization box may include: closing the first exhaust valve, the second exhaust valve and the first control valve, and opening the sensor valve and the second control valve to keep the inside of the disinfection box at the same atmospheric pressure as the outside environment;
the micro compressed air pump is used for enabling the air purified by the air purification system to flow into the internal pipeline and/or the internal cavity of the disinfection box, the internal pressure of the disinfection box reaches a certain set value higher than the atmospheric pressure, and the second control valve is closed and kept still for a certain time;
if the pressure value inside the disinfection box is stabilized within the allowable difference value range, the disinfection box is indicated to be free of leakage.
That is, the sterilization system of the present embodiment can perform leak detection for each endoscope: form airtight pipeline through dedicated quick connector butt joint, after the sterilization process, close first exhaust valve 61 and second exhaust valve 62, open pressure sensor valve 71, pressure sensor 70 pressure numerical value should correspond normal atmospheric pressure this moment, inject into the inside pipeline of soft scope with clean cold air through miniature compression air pump 40, form certain malleation, close the air inlet valve, if keep the certain time pressure value unchanged, then the scope does not have the seepage.
Optionally, the sterilization system further includes a heating air chamber 50, which is communicated with the hydrogen peroxide atomization chamber 10 and is disposed between the hydrogen peroxide atomization chamber 10 and the first control valve 11, wherein the heating air chamber 50 is used for heating the hydrogen peroxide gas flowing to each of the sterilization cases 21. The hydrogen peroxide liquid forms hydrogen peroxide aerial fog less than 5 mu m in the hydrogen peroxide atomizer chamber 10, through compressed gas pump sending to soft scope disinfection box 21 and scope pipeline, designs the heating chamber simultaneously between the connecting line of hydrogen peroxide atomizer chamber 10 and soft scope disinfection box 21, heats hydrogen peroxide aerial fog in advance, prevents that condensate water in the pipeline from getting into disinfection box 21. In practical application, the heating air chamber 50 can be started in advance to heat the pipeline, the heating air chamber 50 can be started in the process of sterilizing the soft endoscope through preheating for a certain time, the temperature of the soft endoscope is kept between 40 and 50 degrees, and the condition of hydrogen peroxide gas condensing in the pipeline of the endoscope is greatly reduced, so that the corrosion to the inner wall of the pipeline is reduced, and the service life of the soft endoscope is prolonged.
In step S2, the flowing the hydrogen peroxide gas into the internal chamber and/or the endoscope channel includes: and heating the hydrogen peroxide gas generated by the hydrogen peroxide atomizing chamber by using the heating air chamber, and then flowing into the internal cavity and/or the endoscope pipeline.
In addition, the soft endoscope disinfection box of the embodiment is internally provided with a heating constant temperature device, so that the inside of the soft endoscope disinfection box is kept at a constant temperature. It should be noted that, when the heating thermostat device disposed inside the soft endoscope sterilization box operates, the temperature inside the sterilization box can be kept consistent with the heating temperature of the heating air chamber, so as to prevent the heated hydrogen peroxide gas from entering the inner pipeline of the sterilization box and condensing. Optionally, a temperature sensor can be arranged inside the disinfection box, the temperature sensor is connected with the heating and constant temperature device, and the temperature inside the disinfection box can be detected by the temperature sensor and the communication between the temperature sensor and the heating and constant temperature device, so that the inside of the soft endoscope disinfection box can be kept constant. In practical applications, electromagnetic heating, infrared heating, or resistance heating may be used, which is not limited in this embodiment.
According to the method provided by the embodiment, the vent valve of the sterilization box connected with the negative-pressure vacuum cavity is closed firstly, the valve of the sterilization box connected with the positive-pressure hydrogen peroxide gas is opened, the positive-pressure hydrogen peroxide gas is rapidly filled into the soft endoscope sterilization box and the inner pipeline of the soft endoscope, and the vent valve on the left side is opened and closed at a certain frequency, so that the hydrogen peroxide gas can fully contact the surface of the inner pipeline of the soft endoscope, dead-angle-free sterilization treatment is thoroughly performed, and meanwhile, the vibration impact is formed on the inner wall of the pipeline by using the modes of frequent pressurization inflation and pressure relief exhaust, and the formation of a bacterial biofilm on the inner wall is avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified or some or all of the technical features can be equivalently replaced within the spirit and principle of the present invention; such modifications or substitutions do not depart from the scope of the present invention.
Claims (10)
1. A pulsating gas sterilization method is applied to a soft endoscope sterilization system, the soft endoscope sterilization system comprises a multi-layer sterilization box shelf, a hydrogen peroxide atomization chamber and a hydrogen peroxide decomposition system which are sequentially connected, the multi-layer sterilization box shelf is provided with at least one soft endoscope sterilization box, and the method comprises the following steps:
generating hydrogen peroxide gas by using the hydrogen peroxide atomizing chamber;
generating a pressure environment through an inner cavity corresponding to any one of the multiple layers of disinfection box shelves and/or an endoscope pipeline of the soft endoscope, and enabling the hydrogen peroxide gas to flow into the inner cavity and/or the endoscope pipeline so as to disinfect the endoscope surface of the soft endoscope and/or the endoscope pipeline by utilizing the hydrogen peroxide gas;
and the hydrogen peroxide gas passing through the sterilizing box flows into the hydrogen peroxide decomposition system, is decomposed and then is discharged out of the sterilizing system.
2. The method of claim 1, wherein a micro-compressed air pump is disposed between each of said sterilization cases and said hydrogen peroxide nebulizing chamber;
a first air inlet valve is arranged between the miniature compressed air pump and the sterilizing box and used for controlling the hydrogen peroxide gas to flow into or stop flowing into the inner cavity of the sterilizing box; a second air inlet valve is arranged between the miniature compressed air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow into or stop flowing into the endoscope pipeline;
a micro vacuum air pump is arranged between each disinfection box and the hydrogen peroxide decomposition system; a first exhaust valve is arranged between the micro vacuum air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow out or stop flowing out and flowing into the inner cavity of the disinfection box; and a second exhaust valve is arranged between the micro vacuum air pump and the disinfection box and is used for controlling the hydrogen peroxide gas to flow out or stop flowing out and flowing into the endoscope pipeline.
3. The method of claim 2, wherein the generating a pressurized environment through an internal cavity of a corresponding sterilization case in the multi-layered sterilization case rack and/or an endoscope channel of a soft endoscope, and flowing the hydrogen peroxide gas into the internal cavity and/or the endoscope channel comprises:
closing the first exhaust valve correspondingly connected with any one of the disinfection boxes, and opening the first air inlet valve correspondingly connected with the disinfection box so as to generate a pressure environment in the internal cavity of the disinfection box, so that the hydrogen peroxide gas flows into the internal cavity;
and closing the second exhaust valve correspondingly connected with the disinfection box and opening the second air inlet valve so as to generate a pressure environment in the endoscope pipeline and enable the hydrogen peroxide gas to flow into the endoscope pipeline.
4. The method of claim 3, wherein after generating the pressurized environment through the internal cavity of the corresponding sterilization case in the multi-layered sterilization case rack and/or the endoscope channel of the soft endoscope, the method further comprises:
and periodically opening or closing the first exhaust valve and/or the second exhaust valve so that the hydrogen peroxide gas can fully contact the internal cavity and the internal pipeline of the sterilizing box.
5. The method of claim 2, wherein a first control valve is disposed between the micro compressed air pump and the hydrogen peroxide atomization chamber;
before the generating hydrogen peroxide gas using the hydrogen peroxide atomization chamber, the method further comprises: and opening the first control valve.
6. The method of claim 5, wherein the sterilization system further comprises an air filtration system disposed at an air intake of the sterilization system and in communication with each of the sterilization cases;
the air filtering system is connected with the miniature compressed air pumps correspondingly arranged on the disinfection boxes, and a second control valve is arranged on a connecting pipeline of the air filtering system and the miniature compressed air pumps;
the disinfection box is provided with a pressure sensor connected with the external connection of the internal cavity, and a sensor valve is arranged on a connecting pipeline of the pressure sensor and the disinfection box.
7. The method of claim 6, wherein after sterilizing the endoscope surface and/or the endoscope channel of the soft endoscope with the hydrogen peroxide gas, the method further comprises: and carrying out leakage detection on the disinfection box.
8. The method of claim 7, wherein said leak testing said sterilization case comprises:
closing the first exhaust valve, the second exhaust valve and the first control valve, and opening the sensor valve and the second control valve to keep the inside of the disinfection box at the same atmospheric pressure as the outside environment;
the micro compressed air pump is used for enabling the air purified by the air purification system to flow into the internal pipeline and/or the internal cavity of the disinfection box, the internal pressure of the disinfection box reaches a set value higher than the atmospheric pressure, and the second control valve is closed and kept still for a certain time;
if the pressure value inside the disinfection box is stabilized within the allowable difference value range, the disinfection box is indicated to be free of leakage.
9. The method of any one of claims 1-8, wherein the sterilization system further comprises a heating plenum in communication with the hydrogen peroxide nebulizing chamber and disposed between the hydrogen peroxide nebulizing chamber and the first control valve; said flowing said hydrogen peroxide gas into said internal cavity and/or endoscope channel comprises:
the hydrogen peroxide gas generated by the hydrogen peroxide atomization chamber is heated by the hot air heating chamber and then flows into the internal cavity and/or the endoscope pipeline;
the soft endoscope disinfection box is internally provided with a heating constant temperature device so as to keep the inner part of the soft endoscope disinfection box at a constant temperature.
10. A soft endoscope sterilization system for use in the method of claims 1-9, said sterilization system comprising:
multilayer disinfection box shelf, hydrogen peroxide atomizer chamber and the hydrogen peroxide decomposition system that connect gradually, multilayer disinfection box shelf is equipped with at least one soft scope disinfection box.
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