Portable sterilization device for surgical instruments

Abstract

The application discloses a portable surgical instrument sterilization device suitable for field operation and belongs to the technical field of field sterilization devices. The device solves the problem that existing sterilization devices are not suitable for field operation due to the need of power supply. The device comprises a back box and a steam assembly. A sterilization partition chamber is arranged in the back box. A plurality of air holes are formed in the sterilization partition chamber and used for placing surgical instruments. The steam assembly comprises at least one pull-out box used for storing a heating bag. Each pull-out box is sealingly and pullably arranged on the back box. Each pull-out box is in communication with a water storage tank and a rotary spray head. The device relies on the heat released by the reaction of the heating bag and water to boil water to form water vapor. The surgical instruments are sterilized by the water vapor. The whole process does not need power supply. The device avoids carrying large-capacity and heavy batteries, reduces the load, and is convenient to carry due to the arrangement of the back box. Field workers can directly carry the back box on their bodies, which is convenient for walking and suitable for remote areas in the field.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of field sterilization device, and particularly relates to a portable surgical instrument sterilization device suitable for field use. BACKGROUND

[0002] Bacteria, viruses and other pathogenic microorganisms are important pathogenic microorganisms causing diseases of the body, and with the increasing protection of wild animals, the autopsy of wild animals becomes more and more frequent, however, the surgical instruments after field autopsy are usually taken back to the laboratory for disinfection, which may directly bring unknown pathogenic microorganisms carried on the instruments back to the laboratory, which may pose a threat to the laboratory and captive animals, and there is a certain risk.

[0003] The conventional sterilization device, such as the high-pressure sterilization pot, works by placing the sterilization objects into the pot body, heating the water by the heating wire to generate water vapor, and using the closed space to increase the pressure in the sterilization pot to a certain value and keep it for a period of time to achieve the purpose of sterilization. The high-pressure sterilization pot must be connected to the power supply to heat the water by electric energy, and the high-pressure sterilization pot is large in size and heavy in weight, which is not convenient to move and carry, and thus is not suitable for field operation. SUMMARY

[0004] In view of the above problems in the prior art, the present application provides a portable surgical instrument sterilization device suitable for field use, which solves the problem that the existing sterilization device is not suitable for field operation due to the need for power supply.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A portable surgical instrument sterilization device suitable for field use is provided, which comprises a back box and a steam assembly. A sterilization partition chamber is arranged in the back box, and a plurality of air holes are formed in the sterilization partition chamber and used for placing surgical instruments. The steam assembly comprises at least one pull-out box for storing a heating bag. Each pull-out box is sealingly and pullably arranged on the back box. Each pull-out box is unidirectionally communicated with a water storage tank and a rotary spray head, respectively. The spray angle of the rotary spray head is adjustably arranged. The rotary spray head is fixed in the interior of the back box and located at the bottom center of the sterilization partition chamber. The water storage tank is used for unidirectionally communicating water into the pull-out box to contact with the heating bag. The heating bag releases heat when contacting with water to boil the water to form water vapor. The water vapor enters the sterilization partition chamber through the rotary spray head to sterilize the surgical instruments.

[0007] The working principle of the scheme is that when surgery is needed, the water in the water storage tank is unidirectionally conducted into the pull-out box to contact the heating bag. The heating bag releases heat when it encounters water to boil the water to form water vapor. The water vapor enters the sterilization partition chamber through the rotating nozzle to sterilize the surgical instruments. Among them, the heat released by the reaction of the heating bag and water is used to boil the water to form water vapor, and the surgical instruments are sterilized by high-temperature water vapor. The whole process does not need power supply, avoids carrying large-capacity and large-weight batteries, reduces the load, and at the same time, the setting of the back box facilitates carrying. The field workers can directly carry the back box on their bodies, which is convenient for walking. The setting of the pull-out box facilitates the replacement of the heating bag, and the unidirectional conduction setting of the water storage tank and the rotating nozzle and the pull-out box avoids the backflow of water vapor. The setting of the rotating nozzle makes the water vapor enter the sterilization partition chamber in the form of multiple gas streams. The water vapor converges into multiple gas streams and is sprayed out, so that the temperature is more concentrated and the sterilization effect is improved.

[0008] Further, the steam assembly includes two pull-out boxes, two water storage tanks and a rotating nozzle; the two pull-out boxes are respectively and sealingly pulled out and arranged on the bottom of the outer end face of the back box; the two water storage tanks are respectively arranged on the two sides of the inside of the back box, and the water outlets at the bottoms of the two water storage tanks are communicated with the two pull-out boxes through the pipes. The first gas one-way check valve and the water filling valve switch are arranged on each pipe, and the button end of each water filling valve switch is arranged on the back box; the gas inlets of the rotating nozzle are respectively communicated with one ends of the two gas pipes, the other ends of the two gas pipes are respectively communicated with the gas outlets of the two water storage tanks, and the second gas one-way check valve is arranged on each gas pipe. The setting of the two pull-out boxes and the two water storage tanks not only can be used together, but also can be used separately, which widens the applicable scenarios. When the field workers need to quickly sterilize multiple surgical instruments, the water in the two water storage tanks is respectively injected into the two pull-out boxes, and the two heating bags in the two pull-out boxes react and release heat at the same time, so that a large amount of water vapor can be formed in a short time, which is convenient for quick sterilization. When the field workers only need to sterilize a small amount of surgical instruments, the heating bags in the two pull-out boxes can be used respectively, the sterilization times are increased, and the number of water and heating bags that need to be carried additionally is reduced. The first gas one-way check valve and the second gas one-way check valve avoid the flow of water vapor in the two pull-out boxes.

[0009] Further, considering that the heating bag in the pull box has low speed and low amount of water vapor formation in the initial reaction with water, if the low speed and small amount of water vapor enters the sterilization partition chamber from the rotary spray head at the first time, the low speed and small amount of water vapor has low heat, not only does not have the heat energy to drive the rotary spray head, but also does not have the sterilization ability due to the contact with the surgical instruments to form condensed water at the first time. The existence of condensed water can lead to a certain time for bacterial growth before a large amount of water vapor is generated, so a pressure safety valve is arranged on each of the two air pipes close to the air inlet of the rotary spray head. The pressure safety valve does not serve as a conventional safety valve, but serves to increase the pressure of the pull box. The pressure safety valve is set to open quickly and completely only when the pressure of the water vapor in the pull box exceeds the preset threshold pressure, thereby avoiding the situation that the heating bag releases low speed and small amount of water vapor in the initial reaction with water. Only when a large amount of water vapor is accumulated in the heating bag in the exothermic reaction with water, sterilization is performed. In this way, the high pressure and large amount of water vapor not only has the heat energy to drive the rotary spray head, but also improves the sterilization effect.

[0010] Further, the rotary spray head includes a rotary head fixed on the bottom of the backpack through a universal support. The rotary head is in communication with a vertical pipe and a plurality of curved pipes in streamline shape, respectively. The gas outlets of the plurality of curved pipes are distributed along the circumference and are arranged obliquely upward. The arrangement of the plurality of curved pipes divides the water vapor into multiple streams to be sprayed upward in spiral trajectories, which is beneficial to quickly distribute the water vapor in the sterilization partition chamber. The universal support can be a flexible support, a ball head support, and a multi-axis support. Through the arrangement of the universal support, the angle of the rotary spray head can be adjusted so that the vertical pipe of the rotary spray head can face the larger surgical instruments directly, thereby improving the sterilization effect on the larger surgical instruments and facilitating the unified sterilization time of the larger surgical instruments and the smaller surgical instruments.

[0011] Further, a containing space is arranged in the backpack, and the sterilization partition chamber includes a horizontal partition plate detachably arranged in the middle of the containing space. A plurality of vertical partition plates are detachably arranged on the horizontal partition plate, and each vertical partition plate is provided with buckles for buckling connection with surgical instruments. The surgical instruments are vertically fixed on the vertical partition plates through the buckles, thereby avoiding the stacking of the surgical instruments and improving the contact area between the surgical instruments and the water vapor.

[0012] Further, the top of the back box is hingedly provided with a box cover, a recovery chamber is arranged on the middle of the bottom surface of the box cover, a condensing plate is arranged on the inner top plate of the recovery chamber, a water outlet on the condensing plate is communicated with two water storage boxes through two return pipes respectively, a pressure relief valve is arranged on the bottom plate of the recovery chamber, and the box cover comprises a closed state and an open state, and the recovery chamber is in sealing connection with the top opening of the containing space in the closed state. Considering that the intensity of the heat release reaction of the heating bag and water is not easy to control, the pressure in the containing space is easy to be too high during the violent reaction of the heating bag and water, and if the water vapor is directly released, the heat and water are wasted, so the recovery chamber is arranged, the pressure relief valve is opened when the pressure in the containing space exceeds a set value, and the water vapor enters the recovery chamber through the pressure relief valve, so that the recovery chamber not only has the effect of reducing the pressure in the containing space, but also has the function of recovering the water vapor through the internal condensing plate, the direct discharge of the water vapor is avoided, the water circulation rate is increased, and the amount of water that needs to be additionally carried is reduced.

[0013] Further, return switches are arranged on the two return pipes, and the two return switches are fixed on the top of the box cover. The return switches are arranged to facilitate the control of the flow of the return pipes, provide the use conditions of the condensate water of the recovery chamber for field workers, and avoid the direct mixing of the condensate water and the water in the storage box.

[0014] Further, in order to avoid excessive pressure, even if the recovery chamber exists, the pressure cannot be reduced to a safe value, a vent hole is arranged on the top plate of the box cover and communicated with the recovery chamber, and a vent switch is arranged on the vent hole. The vent hole can vent at high pressure, and the field workers can also use the condensate water of the recovery chamber through the vent hole.

[0015] Further, the bottom plate of the recovery chamber is sealingly and slidingly connected to the side wall of the recovery chamber. The size of the containing space can be adjusted by adjusting the height of the bottom plate of the recovery chamber, generally, the bottom plate of the recovery chamber is in contact with the longest surgical instrument, so that the water vapor heat is more concentrated by reducing the height of the containing space. When only a single surgical instrument needs to be sterilized, the vertical partition plate can be directly disassembled, the single surgical instrument is only placed on the horizontal partition plate, the height of the bottom plate of the recovery chamber is appropriately reduced, and thus the pressure in the containing space is conveniently and rapidly increased.

[0016] Further, pressure gauges and thermometers for detecting the pressure and temperature of the sterilization partition chamber are arranged on the outer end surface of the back box. The pressure gauges and thermometers facilitate the field workers to monitor the pressure and temperature of the sterilization partition chamber.

[0017] The application discloses a portable surgical instrument sterilization device suitable for field use, and has the following beneficial effects:

[0018] This invention relies on the heat released by the reaction of a heating pack with water to boil the water and form steam. The steam is then used to sterilize surgical instruments at high temperatures. The entire process requires no power supply, avoiding the need to carry large-capacity and heavy batteries, thus reducing the load. At the same time, the backpack design makes it easy to carry, allowing field workers to carry the backpack directly on their backs for easy movement. It is suitable for remote areas in the field. Attached Figure Description

[0019] Figure 1 A schematic diagram of a portable surgical instrument sterilization device;

[0020] Figure 2 This is a schematic diagram of the internal structure of a portable surgical instrument sterilization device.

[0021] Figure 3 This is a top view of the rotating nozzle;

[0022] Figure 4 This is a schematic diagram showing the downward movement of the bottom plate of the recycling chamber;

[0023] The components include: 1. Back box; 11. Pressure gauge; 12. Thermometer; 2. Box lid; 21. Reflux switch; 22. Exhaust vent; 3. Sterilization partition chamber; 31. Horizontal partition; 32. Vertical partition; 33. Buckle; 4. Pull-out box; 41. Air pipe; 42. Second gas one-way check valve; 43. Pressure safety valve; 5. Heating pack; 6. Water tank; 61. Conduit; 62. Water injection valve switch; 63. First gas one-way check valve; 7. Rotary nozzle; 71. Rotary head; 72. Vertical pipe; 73. Bend; 8. Recovery chamber; 81. Condensation plate; 82. Reflux pipe; 83. Base plate; 84. Pressure relief valve. Detailed Implementation

[0024] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0025] refer to Figure 1 This is a schematic diagram of a portable surgical instrument sterilization device. Its purpose is to solve the problem that existing sterilization devices are not suitable for field operations because they require a power supply. It will be shown in detail below.

[0026] refer to Figure 1 and Figure 2 This embodiment provides a portable surgical instrument sterilization device suitable for field use, including a back box 1 and a steam assembly.

[0027] The back box 1 is provided with a containing space, and the sterilization partition chamber 3 comprises a horizontal partition 31 detachably arranged in the middle of the containing space, and the horizontal partition 31 is arranged on a step in the containing space. A plurality of vertical partitions 32 are clamped on the horizontal partition 31, and each vertical partition 32 is provided with a buckle 33 for buckling connection with surgical instruments. A plurality of ventilation holes are formed in the horizontal partition 31 and each vertical partition 32. The surgical instruments are vertically fixed on the vertical partitions 32 through the buckles 33, so that the surgical instruments are prevented from being stacked, and the contact area of the surgical instruments with water vapor is increased.

[0028] The steam assembly comprises two pull-out boxes 4, two water storage tanks 6 and a rotating spray head 7.

[0029] The two pull-out boxes 4 are used for placing heating bags 5, and the two pull-out boxes 4 are sealingly and pullably arranged on the bottom of the outer end face of the back box 1. One end face of the back box 1 provided with a back strap is an inner end face, and the other end face of the back box 1 is an outer end face. The arrangement of the two pull-out boxes 4 and the two water storage tanks 6 can not only be used together, but also be used separately, thereby widening the applicable scenarios. When field workers need to quickly sterilize a plurality of surgical instruments, the water in the two water storage tanks 6 is respectively injected into the two pull-out boxes 4, the two heating bags 5 in the two pull-out boxes 4 react and release heat at the same time, a large amount of water vapor can be formed in a short time, and the sterilization is convenient and fast. When the field workers only need to sterilize a small amount of surgical instruments, the heating bags 5 in the two pull-out boxes 4 can be used respectively, the sterilization frequency is increased, and the number of water and heating bags 5 that need to be carried additionally is reduced.

[0030] The two water storage tanks 6 are arranged on the two sides of the inside of the back box 1 respectively, the water inlets of the two water storage tanks 6 are arranged on the top faces of the water storage tanks, the water outlets at the bottoms of the two water storage tanks 6 are communicated with the two pull-out boxes 4 through the conduits 61, the first gas one-way check valves 63 and the water injection valve switches 62 are arranged on each conduit 61, and the button ends of each water injection valve switch 62 are arranged on the back box 1.

[0031] The spraying angle of the rotating spray head 7 is adjustable, the rotating spray head 7 is fixed in the inside of the back box 1 and located at the bottom center of the sterilization partition chamber 3, the water storage tank 6 is used for unidirectionally conducting water to the pull-out box 4 to contact with the heating bag 5, the heating bag 5 releases heat to boil water to form water vapor when meeting water, and the water vapor enters the sterilization partition chamber 3 through the rotating spray head 7 to sterilize the surgical instruments.

[0032] As a communication structure of the rotating spray head 7 and the pull-out box 4, the air inlets of the rotating spray head 7 are respectively communicated with one ends of the two air tubes 41, the other ends of the two air tubes 41 are respectively communicated with the air outlets of the two water storage tanks 6, and the second gas one-way check valves 42 are arranged on each air tube 41. The first gas one-way check valves 63 and the second gas one-way check valves 42 avoid the water vapor from flowing in the two pull-out boxes 4.

[0033] As a specific structure of the rotating nozzle 7, refer to Figure 2 and Figure 3 The rotating nozzle 7 includes a rotating head 71 fixed on the inner bottom of the backpack through a universal support, and the rotating head 71 is communicated with the two air pipes 41 through a three-way hose respectively. The rotating head 71 is communicated with a vertical pipe 72 and a plurality of streamline elbow pipes 73 respectively, and the gas outlets of the plurality of elbow pipes 73 are distributed along the circumference and arranged obliquely upward. The arrangement of the plurality of elbow pipes 73 makes the water vapor split into multiple streams and sprayed upward along a spiral trajectory, which is beneficial to quickly distribute the water vapor in the sterilization partition chamber 3. The universal support can be a flexible support, a ball head support and a multi-axis support. Through the arrangement of the universal support, the angle of the rotating nozzle 7 can be adjusted, so that the vertical pipe 72 of the rotating nozzle 7 can face the larger surgical instruments directly, thereby improving the sterilization effect of the larger surgical instruments, and facilitating the unified sterilization time of the larger surgical instruments and the smaller surgical instruments.

[0034] As a further scheme of the embodiment, considering that the heating bag 5 in the pull-out box 4 has low formation speed and low generation amount of water vapor in the initial reaction with water, if the low-speed and small-amount water vapor enters the sterilization partition chamber 3 from the rotating nozzle 7 at the first time, the low-speed and small-amount water vapor has low heat, not only does not have the heat energy to drive the rotating nozzle 7, but also forms condensed water by contacting the surgical instruments at the first time, which not only does not have the sterilization ability, but also the existence of the condensed water will lead to a certain time for bacteria breeding before a large amount of water vapor is generated, so the pressure safety valve 43 is arranged at the air inlet of each of the two air pipes 41 close to the rotating nozzle 7. The pressure safety valve 43 does not serve as a conventional safety valve, but serves to increase the pressure of the pull-out box 4. The pressure safety valve 43 is arranged to be opened quickly and completely only when the pressure of the water vapor in the pull-out box 4 exceeds the preset threshold pressure, thereby avoiding the situation that the heating bag 5 releases low-speed and small-amount water vapor in the initial reaction with water. Only when a large amount of water vapor is accumulated in the heat release reaction of the heating bag with water, the sterilization is performed, so that the high-pressure and large-amount water vapor not only has the heat energy to drive the rotating nozzle 7, but also improves the sterilization effect.

[0035] As a further solution of the present embodiment, considering that the intensity of the exothermic reaction between the heating bag 5 and water is not easy to control, and the pressure of the accommodating space is easy to be too high during the violent reaction between the heating bag 5 and water, if the water vapor is directly released, the heat and water are wasted, therefore, the box cover 2 is hingedly arranged on the top of the back box 1, the recovery chamber 8 is arranged on the middle bottom of the box cover 2, the condensing plate 81 is arranged on the inner top of the recovery chamber 8, the water outlet on the condensing plate 81 is communicated with the two water storage tanks 6 through two return pipes 82 respectively, the pressure relief valve 84 is arranged on the bottom plate 83 of the recovery chamber 8, the box cover 2 comprises a closed state and an open state, and the recovery chamber 8 is in sealing connection with the top opening of the accommodating space in the closed state. When the pressure of the accommodating space exceeds the set value, the pressure relief valve 84 will be opened, and the water vapor will enter the recovery chamber 8 through the pressure relief valve 84. The recovery chamber 8 not only has the function of reducing the pressure of the accommodating space, but also has the function of recovering the water vapor through the internal condensing plate 81, avoiding the direct discharge of the water vapor, increasing the water circulation rate, and thus reducing the amount of water that needs to be carried additionally.

[0036] The two return pipes 82 are each provided with a return switch 21, and the two return switches 21 are fixed on the top of the box cover 2. The return switch 21 is arranged to facilitate the control of the flow of the return pipe 82, to provide the use condition of the condensate water of the recovery chamber 8 for the field worker, and to avoid the direct mixing of the condensate water and the water in the storage tank.

[0037] In order to avoid the pressure being too high, even if the recovery chamber 8 exists, the pressure cannot be reduced to a safe value, and the top plate of the box cover 2 is provided with an exhaust hole 22 communicated with the recovery chamber 8, and the exhaust hole 22 is provided with an exhaust switch. The exhaust hole 22 can exhaust at high pressure, and also facilitates the field worker to use the condensate water of the recovery chamber 8 through the exhaust hole 22.

[0038] As a specific structure of the recovery chamber 8, reference is made to Figure 2 and Figure 4 The bottom plate 83 of the recovery chamber 8 is sealingly and slidingly connected to the side wall of the recovery chamber 8. By adjusting the height of the bottom plate 83 of the recovery chamber 8, the size of the accommodating space can be adjusted. Generally, the bottom plate 83 of the recovery chamber 8 is in contact with the longest surgical instrument. In this way, by reducing the height of the accommodating space, the water vapor heat can be more concentrated. When only a single surgical instrument needs to be sterilized, the vertical partition plate 32 can be directly disassembled, and the single surgical instrument can be placed flat on the horizontal partition plate 31, and the height of the bottom plate 83 of the recovery chamber 8 is appropriately reduced, so as to facilitate the rapid increase of the pressure in the accommodating space.

[0039] In order to facilitate the field worker to monitor the pressure and temperature of the sterilization partition chamber 3, the pressure gauge 11 and the thermometer 12 with detection ends located in the sterilization partition chamber 3 are arranged on the outer end face of the back box 1, and the two water valve switches 62 are also arranged on the outer end face of the back box 1.

[0040] The working principle of the present scheme is:

[0041] When surgery is needed, water in the water storage tank 6 is unidirectionally conducted into the pull-out box 4 to contact the heating bag 5. The heating bag 5 releases heat to boil water to form water vapor when it meets water. The water vapor enters the sterilization partition chamber 3 through the rotating nozzle 7 to sterilize surgical instruments.

[0042] In order to deal with the situation that multiple surgical instruments need to be quickly sterilized, the water in two water storage tanks 6 is simultaneously injected into two pull-out boxes 4. The two heating bags 5 in the two pull-out boxes 4 simultaneously react to release heat, so that a large amount of water vapor can be formed in a short time, facilitating rapid sterilization.

[0043] In order to deal with the situation that a single surgical instrument needs to be quickly sterilized, the vertical partition 32 is disassembled, and the single surgical instrument is placed on the horizontal partition 31. The height of the bottom plate 83 of the recovery chamber 8 is appropriately reduced, so as to facilitate the rapid increase of the pressure in the containing space, and realize rapid sterilization.

[0044] After the completion of the surgery, in order to reduce the breeding of bacteria, the condensate water of the recovery chamber 8 can be used to clean the surgical instruments, facilitating subsequent surgical disinfection.

[0045] Although the specific embodiments of the invention are described in detail with reference to the accompanying drawings, it should not be understood as limiting the protection scope of the present patent. Various modifications and variations made by those skilled in the art within the scope described in the claims are still within the protection scope of the present patent.

Claims

1. A portable sterilization device for surgical instruments for field use, characterized in that, The utility model provides a steam sterilization box, which comprises a back box (1) and a steam assembly; a sterilization partition chamber (3) is arranged in the back box (1); a plurality of air holes are formed in the sterilization partition chamber (3) and used for placing surgical instruments; The steam assembly comprises at least one pull-out box (4) used for storing a heating bag (5); each pull-out box (4) is sealingly and pullably arranged on the back box (1); each pull-out box (4) is unidirectionally communicated with a water storage tank (6) and a rotary nozzle (7); the spraying angle of the rotary nozzle (7) is adjustably arranged; the rotary nozzle (7) is fixed in the back box (1) and located at the bottom center of the sterilization partition chamber (3); the water storage tank (6) is used for unidirectionally communicating water into the pull-out box (4) to contact with the heating bag (5); the heating bag (5) releases heat when contacting with water to boil water to form water vapor; the water vapor enters the sterilization partition chamber (3) through the rotary nozzle (7) to sterilize the surgical instruments; The steam assembly comprises two pull-out boxes (4), two water storage tanks (6) and one rotary nozzle (7); the two pull-out boxes (4) are sealingly and pullably arranged on the bottom of the outer end face of the back box (1); The two water storage tanks (6) are arranged on the two sides of the inside of the back box (1); the bottom water outlets of the two water storage tanks (6) are communicated with the two pull-out boxes (4) through two pipes (61); a first gas one-way check valve (63) and a water filling valve switch (62) are arranged on each pipe (61); the button end of each water filling valve switch (62) is arranged on the back box (1); The gas inlets of the rotary nozzle (7) are communicated with one ends of two gas pipes (41); the other ends of the two gas pipes (41) are communicated with the gas outlets of the two water storage tanks (6); a second gas one-way check valve (42) is arranged on each gas pipe (41); Pressure safety valves (43) are arranged on the two gas pipes (41) near the gas inlets of the rotary nozzle (7); A box cover (2) is hingedly arranged on the top of the back box (1); a recovery chamber (8) is arranged on the middle of the bottom face of the box cover (2); a condensation plate (81) is arranged on the inner top plate of the recovery chamber (8); the water outlet of the condensation plate (81) is communicated with the two water storage tanks (6) through two return pipes (82); a pressure relief valve (84) is arranged on the bottom plate (83) of the recovery chamber (8); The box cover (2) comprises a closed state and an open state; the recovery chamber (8) is sealingly connected with the top opening of the containing space in the back box (1) in the closed state; Two return switches (21) are arranged on the two return pipes (82); the two return switches (21) are fixed on the top of the box cover (2); An exhaust hole (22) is arranged on the top plate of the box cover (2) and communicated with the recovery chamber (8); an exhaust switch is arranged on the exhaust hole (22).

2. The portable surgical instrument sterilization device of claim 1, wherein, The rotating head (7) comprises a rotating head (71) arranged on the inner bottom of the backpack through a universal support, the rotating head (71) is communicated with a vertical pipe (72) and a plurality of streamline elbow pipes (73) respectively, the gas outlets of the plurality of streamline elbow pipes (73) are distributed along the circumference and are arranged upwardly and obliquely.

3. The portable surgical instrument sterilization device of claim 1, wherein, The back box (1) is internally provided with a containing space, the sterilization partition chamber (3) comprises a horizontal partition (31) which is detachably arranged in the middle of the containing space, a plurality of vertical partitions (32) are detachably arranged on the horizontal partition (31), and each vertical partition (32) is provided with a buckle (33) for buckling connection with surgical instruments.

4. The portable surgical instrument sterilization device of claim 1, wherein, The bottom plate (83) of the recovery chamber (8) is sealingly and slidingly connected to the side wall of the recovery chamber (8).

5. The portable surgical instrument sterilization device of claim 1, wherein, The outer end surface of the back box (1) is provided with a pressure gauge (11) and a thermometer (12) for detecting the pressure and temperature of the sterilization partition chamber (3).

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