Steam ablation system applied to interventional therapy of respiratory system

Abstract

The invention discloses a steam ablation system applied to interventional therapy of a respiratory system, and relates to the technical field of medical instruments, the steam ablation system comprises a host, the host comprises a shell, and a steam generation unit and a control unit are arranged in the shell; the steam generation unit comprises a liquid inlet pipe, a liquid pump, a steam generator, a gas-liquid separator, a first main gas outlet pipe, a second main gas outlet pipe, a first branch gas outlet pipe and a second branch gas outlet pipe; the touch screen is fixedly arranged on the side wall of the shell and is in signal connection with the control unit; a steam release pipe is fixedly arranged in the handle, one end of the steam release pipe is communicated with the steam outlet through a hose, and a steam release button is arranged on the handle and used for controlling opening and closing of the first electromagnetic valve; an air inlet of the balloon catheter is used for being communicated with the other end of the steam release tube; the tumor is ablated by generating high-temperature steam, and the device is particularly suitable for eliminating peripheral nodule lung cancer, and is accurate, low in side effect, simple and quick in treatment and good in patient recovery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a steam ablation system used for interventional treatment of respiratory system. Background Art

[0002] Lung cancer is the malignant tumor with the highest incidence rate. As health examinations are increasingly valued, nearly half of the patients clinically suffer from small peripheral nodular lung cancer. Existing treatments include surgical resection and transthoracic ablation (for example: argon-helium knife cryoablation, microwave and radiofrequency high-temperature ablation, etc.).

[0003] However, these treatments have their inherent disadvantages: surgical treatment is more traumatic and is not suitable for elderly patients or patients with more serious underlying diseases; the recurrence rate of lung cancer treated by transthoracic ablation is over 50%. The reason for the high recurrence rate of the above ablation treatments is that the lungs themselves are an organ filled with gas, and gas is a good heat insulator. Most of the lungs are gases with low thermal conductivity, which is similar to the warmth of down jackets. Argon-helium cryoablation, microwave and radiofrequency high-temperature ablation are limited, with fast energy attenuation, incomplete ablation treatment and omissions. Therefore, the temperature of killing cancer cells cannot be reached for the tiny metastatic lesions around lung cancer lesions, resulting in a high recurrence rate for patients treated by transthoracic intervention. Summary of the invention

[0004] The purpose of the present invention is to provide a steam ablation system for respiratory system interventional treatment, so as to solve the problems existing in the above-mentioned prior art and improve the ablation effect of respiratory system tumors.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a steam ablation system for respiratory system interventional treatment, comprising:

[0007] A host, the host includes a shell, and a steam generating unit and a control unit are arranged in the shell; the steam generating unit includes a liquid inlet pipe, a liquid pump, a steam generator, a gas-liquid separator, a first main air outlet pipe, a second main air outlet pipe, a first branch air outlet pipe and a second branch air outlet pipe, one end of the liquid inlet pipe is connected to the sterile water inlet on the shell, and the other end is connected to the liquid inlet of the liquid pump, the liquid outlet of the liquid pump is connected to the liquid inlet of the steam generator, the air outlet of the steam generator is connected to the air inlet of the gas-liquid separator, the air outlet of the gas-liquid separator is connected to one end of the first main air outlet pipe, one end of the first branch air outlet pipe and the second branch air outlet pipe are respectively connected to the other end of the first main air outlet pipe, and the other end of the first branch air outlet pipe and the other end of the second branch air outlet pipe is respectively connected with one end of the second main air outlet pipe, and the other end of the second main air outlet pipe is connected with the steam outlet on the shell; a drain valve is arranged on the water outlet of the gas-liquid separator, and the drain valve is connected with the liquid storage tank through the water outlet pipe; a first solenoid valve is arranged on the first branch air outlet pipe, and a second solenoid valve is arranged on the second branch air outlet pipe; an air pressure sensor is arranged on the connecting pipe between the steam generator and the gas-liquid separator, and a temperature sensor is arranged on the second main air outlet pipe; the electromagnetic pump, the steam generator, the air pressure sensor, the gas-liquid separator, the drain valve, the first solenoid valve, the second solenoid valve and the temperature sensor are respectively connected with the control unit signal;

[0008] A touch screen, which is fixed on the side wall of the housing and is signal-connected to the control unit;

[0009] A handle, wherein a steam release pipe is fixedly disposed in the handle, one end of the steam release pipe is connected to the steam outlet through a hose, and a steam release button is disposed on the handle, and the steam release button is used to control the opening and closing of the first solenoid valve;

[0010] A balloon catheter, wherein the air inlet of the balloon catheter is used to communicate with the other end of the steam release tube.

[0011] Preferably, it also includes a trolley, the bottom end of the shell is detachably connected to the support plate at the top of the trolley; the top of the trolley is also provided with a bottle hanging rack, the bottle hanging rack is used to hang a sterile water bag; the sterile water bag is connected to the sterile water inlet through a connecting pipe;

[0012] A drawer cabinet is arranged at the bottom of the trolley, and the liquid storage tank is arranged in the drawer cabinet.

[0013] Preferably, the control unit is separated from the steam generating unit by a thermal insulation board.

[0014] Preferably, a water collecting tank is further provided in the shell and is located directly below the steam generating unit.

[0015] Preferably, an explosion-proof mesh cover is further provided in the shell, and the liquid pump and the steam generator are both provided in the explosion-proof mesh cover.

[0016] Preferably, the handle comprises an outer shell and a thermal insulation tube, the thermal insulation tube is sleeved on the steam release tube, the thermal insulation tube passes through the outer shell and is fixedly connected to the outer shell, and a cavity is formed between the thermal insulation tube and the outer shell.

[0017] Preferably, the material of the hand-held portion of the shell is silicone, and the material of other parts of the shell except the hand-held portion is engineering plastic.

[0018] Preferably, the control unit is used to switch the gas circuit operating state according to the real-time temperature of the temperature sensor and the real-time pressure of the air pressure sensor, and enter the preheating completed and releasable state when the real-time temperature of the temperature sensor is within the expected temperature range and the real-time pressure of the air pressure sensor is within the expected air pressure range.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The steam ablation system for interventional treatment of the respiratory system of the present invention ablates tumors by generating high-temperature steam, and is particularly suitable for eliminating peripheral small nodule lung cancer. Compared with traditional ablation methods such as argon-helium knife low-temperature ablation, microwave and radiofrequency high-temperature ablation, it is more suitable for treating lungs with dense airways and low thermal conductivity where conventional energy transmission is difficult. The steam method naturally utilizes the dense airways of the lungs and can completely ablate designated lung segments. It is accurate and has low side effects, the treatment is simple and fast, and the patient recovers well.

[0021] Furthermore, the internal operating conditions of the host are monitored through built-in temperature sensors and air pressure sensors, and the system status is dynamically adjusted based on these data to maintain the air path conditions within the expected temperature and pressure range.

[0022] Furthermore, by adopting a high-power steam generator (such as a 3KW steam generator), the required steam can be generated in a short time, which is convenient to use.

[0023] Furthermore, the design of the thermal insulation tube and the cavity in the handle can both play a heat insulation role, which can prevent the high temperature of the steam release tube from being transmitted to the user's hands, thereby protecting the user from the influence of high-temperature steam.

[0024] Furthermore, a pull-out cabinet is provided at the bottom of the trolley, and the liquid storage tank is arranged in the pull-out cabinet. Since the liquid storage tank is usually heavy, the center of gravity of the whole system can be lowered, thereby improving the stability of the system.

[0025] Furthermore, the bottle rack on the top of the trolley is convenient for hanging sterile water bags and is easy to use.

[0026] Furthermore, steam ablation has the characteristics of non-carbonization ablation (the tissue temperature of the treated area is 60-90°C, which is far from the 200°C-300°C condition of carbonization of human tissue) and has low side effects.

[0027] Furthermore, during the operation, after the pipelines are in place, one only needs to input the values ​​through the touch screen and press the steam release button to complete the steam ablation treatment within half a minute.

[0028] Furthermore, during treatment, the balloon on the balloon catheter expands and contacts the inner wall of the designated airway, thereby sealing the airway, while the released steam fills the airway and the subordinate branch airway areas, and the steam will not affect the upper-level airways. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of the steam ablation system applied to respiratory system interventional treatment of the present invention;

[0031] Figure 2 It is a partial structural schematic diagram of the steam ablation system applied to respiratory system interventional treatment of the present invention;

[0032] Figure 3 It is a structural schematic diagram of a handle in the steam ablation system for interventional treatment of the respiratory system of the present invention;

[0033] Figure 4 It is a schematic diagram of the FSM framework of the main unit of the steam ablation system for interventional treatment of the respiratory system of the present invention.

[0034] In the figure: 1. Shell; 2. Trolley; 3. Touch screen; 4. Bottle rack; 5. Support plate; 6. Liquid pump; 7. Steam generator; 8. Air pressure sensor; 9. Gas-liquid separator; 10. First main air outlet pipe; 11. First branch air outlet pipe; 12. First solenoid valve; 13. Second branch air outlet pipe; 14. Second solenoid valve; 15. Second main air outlet pipe; 16. Temperature sensor; 17. Explosion-proof mesh cover; 18. Drain valve; 19. Water collecting tank; 20. Handle; 21. Hand-held part; 22. Shell; 23. Thermal insulation pipe; 24. Steam release pipe; 25. Steam release button. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The purpose of the present invention is to provide a steam ablation system for respiratory system interventional treatment, so as to solve the problems existing in the above-mentioned prior art and improve the ablation effect of respiratory system tumors.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 3 As shown, this embodiment provides a steam ablation system for respiratory system interventional treatment, including:

[0039] The host comprises a shell 1, in which a steam generating unit and a control unit are arranged; the steam generating unit comprises a liquid inlet pipe, a liquid pump 6, a steam generator 7, a gas-liquid separator 9, a first main air outlet pipe 10, a second main air outlet pipe 15, a first branch air outlet pipe 11 and a second branch air outlet pipe 13, one end of the liquid inlet pipe is connected to the sterile water inlet on the shell 1, and the other end is connected to the liquid inlet of the liquid pump 6, the liquid outlet of the liquid pump 6 is connected to the liquid inlet of the steam generator 7, the air outlet of the steam generator 7 is connected to the air inlet of the gas-liquid separator 9, the air outlet of the gas-liquid separator 9 is connected to one end of the first main air outlet pipe 10, one end of the first branch air outlet pipe 11 and the second branch air outlet pipe 13 are respectively connected to the other end of the first main air outlet pipe 10, and the other end of the first branch air outlet pipe 11 is connected to the other end of the The other end of the second branch air outlet pipe 13 is respectively communicated with one end of the second main air outlet pipe 15, and the other end of the second main air outlet pipe 15 is communicated with the steam outlet on the shell 1; a drain valve 18 is provided on the water outlet of the gas-liquid separator 9, and the drain valve 18 is communicated with the liquid storage tank through the water outlet pipe; a first solenoid valve 12 is provided on the first branch air outlet pipe 11, and a second solenoid valve 14 is provided on the second branch air outlet pipe 13; an air pressure sensor 8 is provided on the connecting pipe between the steam generator 7 and the gas-liquid separator 9, and a temperature sensor 16 is provided on the second main air outlet pipe 15; the electromagnetic pump, the steam generator 7, the air pressure sensor 8, the gas-liquid separator 9, the drain valve 18, the first solenoid valve 12, the second solenoid valve 14 and the temperature sensor 16 are respectively connected to the control unit signal;

[0040] A touch screen 3, which is fixed on the side wall of the housing 1 and is connected to the control unit by signal;

[0041] A handle 20, wherein a steam release pipe 24 is fixedly disposed in the handle 20, wherein one end of the steam release pipe 24 is connected to a steam outlet through a hose, and a steam release button 25 is disposed on the handle 20, wherein the steam release button 25 is used to control the opening and closing of the first solenoid valve 12, and the first solenoid valve 12 is opened only when the steam release button 25 is pressed, and when the steam release button 25 is released, the first solenoid valve 12 is closed again;

[0042] The balloon catheter has an air inlet for communicating with the other end of the steam release tube 24 ; the balloon catheter is a commercially available product well known in the art, and the specific structure and working principle of the balloon catheter will not be elaborated in this embodiment.

[0043] In this embodiment, the control unit specifically adopts a mainboard, and the model of the mainboard is: Zhengdian Atom MP157 development board; the liquid pump 6 adopts an electromagnetic pump.

[0044] The specific method of using the steam ablation system for respiratory system interventional treatment in this embodiment is as follows:

[0045] First, the water outlet of the sterile water bag is connected to the sterile water inlet on the shell 1 through a connecting pipe, and the balloon catheter is connected to the steam release pipe 24 on the handle 20. Then the user presses the preheating button on the touch screen 3, and the control unit controls the electromagnetic pump, the steam generator 7, the gas-liquid separator 9 and the second electromagnetic valve 14 to open. The steam generator 7 heats the steam generated by the sterile water to preheat the entire gas pipeline. The purpose of preheating is to prevent the high-temperature steam generated during the treatment from flowing in the pipeline with lower temperature, which causes the temperature of the high-temperature steam itself to decrease, thereby affecting the treatment effect; the temperature in the second main air outlet pipe 15 is monitored by the temperature sensor 16. When the value fed back by the temperature sensor 16 reaches the set value, it means that the preheating is completed. The control unit controls the second electromagnetic valve 14 to close and controls the buzzer to sound to remind the user that the preheating is completed;

[0046] Then the user guides the balloon catheter into the designated target airway position through the bronchoscope, and then presses the steam release button 25 on the handle 20, the first solenoid valve 12 is opened, and the high-temperature steam separated in the gas-liquid separation device enters the balloon catheter through the first main air outlet pipe 10, the first branch air outlet pipe 11, the second main air outlet pipe 15, and the steam release pipe 24. The balloon in the balloon catheter is in a contracted state in the initial state. When the steam enters the balloon catheter, the balloon is inflated and expanded to block the airway. At this time, when the steam is released, the ablated part fills the released airway and its subordinate branch airway area, and the steam will not affect the upper-level airway.

[0047] In an optional scheme of this embodiment, the control unit is used to: switch the gas circuit operating state according to the real-time temperature of the temperature sensor 16 and the real-time pressure of the air pressure sensor 8, and when the real-time temperature of the temperature sensor 16 is within the expected temperature range and the real-time pressure of the air pressure sensor 8 is within the expected air pressure range, the preheating is completed and can be released.

[0048] The steam ablation system used for interventional treatment of the respiratory system in this embodiment uses a finite state machine (FSM) architecture. FSM is a mathematical model that represents a finite number of states and behaviors such as transitions and actions between these states. It can decouple the multi-state and transition conditions between the multi-states of the model, reduce the coupling degree of the program, and make the system easy to develop and maintain; all possible input signals have been traversed and considered, and no processing of different combinations of input conditions is omitted, which can improve the stability and safety of the system.

[0049] In order to dynamically maintain the working conditions of the gas circuit in the steam host within the specified air pressure and temperature range, the steam ablation system for respiratory interventional treatment in this embodiment dynamically adjusts the state switching based on the real-time data fed back by the temperature sensor 16 and the air pressure sensor 8 in the FSM framework, thereby maintaining the working conditions of the internal gas circuit within the expected temperature range and the expected air pressure range. The steam equipment mainly involves the 10 states in Table 1 under the FSM framework, and the state jump diagram corresponding to each condition of the whole is shown in Table 1. Figure 4 . Figure 4 In the figure, the output port temperature sensor T0 is the temperature sensor 16, and the gas path pressure sensor P0 refers to the pressure sensor 8.

[0050] Table 1 Steam host FSM status description

[0051]

[0052] Before the host is powered on, it is in the shutdown N0 state and there is no screen display; when it is just powered on, the system starts running, the touch screen switches to the on state, waiting for the user to press the touch screen "start" button. At this time, it is in the normal standby S0 state with all valves closed and no water absorption and heating. When the user presses the touch screen start button, it first enters the S1 state to initially empty the device. When the emptying is completed, the control unit will jump between the S2-S6 gas circuit working states based on the real-time feedback of the real-time temperature of the temperature sensor 16 and the real-time pressure of the air pressure sensor 8. At this time, it belongs to the preheating and preparation state after startup, until it jumps to the S6 state where preheating is completed. The system issues a prompt sound that the preparation is complete and the therapeutic steam can be released, waiting for the user to release it. The user presses the steam release button to perform the steam release operation.

[0053] Below Figure 4The jump process of the preheating and preparation states is further explained. The preset expected lower and upper limits of air pressure are P_MIN and P_MAX respectively, and the expected lower and upper limits of temperature pressure are T_MIN and T_MAX respectively. Therefore, the real-time temperature value T0 fed back by the temperature sensor 16 will have 5 situations compared with its corresponding expected temperature range: T0 is lower than T_MIN (recorded as T_LOW), T0 is equal to T_MIN (recorded as T_MIN), T0 is between the upper and lower limits (recorded as T_MID), T0 is equal to T_MAX (recorded as T_MAX), and T0 is greater than T_MAX (recorded as T_EXCEED). Similarly, the real-time value of the air pressure sensor 8 will also have 5 situations compared with its corresponding expected air pressure range. All the combinations of the air pressure sensor 8 and the temperature sensor 16 correspond to the 25 conditions in Table 2.

[0054] Table 2 Temperature and pressure state combination table

[0055]

[0056]

[0057] When the S1 gas circuit working state is emptied, if the real-time pressure of the air pressure sensor 8 is between the upper and lower limits (or equal to the upper and lower limits), that is, the pressure meets the expected air pressure range, but the temperature sensor 16 value is higher than the maximum limit value T_MAX, it means that the environment in the gas circuit needs to be cooled down by standing, then the corresponding V, W, and X situations in Table 2 jump to Figure 4 Further, after the S4 gas circuit working state cools down for a period of time, if the real-time temperature of the temperature sensor 16 falls within the expected temperature range and the real-time pressure value of the air pressure sensor 8 falls within the expected air pressure range, that is, corresponding to the nine cases of G, H, I, L, M, N, Q, R and S in Table 2, then it should jump to Figure 4 The S6 gas circuit working state indicates that the working state is ready and emits a prompt tone for releasing therapeutic steam. Similarly, the jump between other states is similar. When the corresponding conditions in Table 2 are met, it jumps to the gas circuit working state corresponding to the conditions.

[0058] After a few minutes, the whole system reaches the expected pressure and temperature conditions, and finally jumps to the S6 gas circuit condition state where preheating is completed, and the system waits for the user to release. After the user releases, continue the preparation operation, so that the air pressure and temperature of the host are automatically adjusted to the expected pressure range and expected temperature range, and re-enter the S6 gas circuit condition state. If an abnormal signal is detected during the intermediate process, it will enter the abnormal alarm E0 state and prompt the corresponding alarm reason.

[0059] The E0 gas circuit working state is an abnormal alarm state. The following is a further explanation of the jump of the E0 gas circuit working state. During the operation of the system, when the air pressure value of the air pressure sensor 8 exceeds P0_Over, it jumps to the abnormal alarm state E0; if the temperature sensor T1 in the steam generator exceeds T1_Over, it jumps to the abnormal alarm state E0. In addition, when an abnormal value (such as a negative value, a meaningless coded value) appears in any temperature or air pressure sensor 8, that is, when T0_Error appears in the temperature sensor 16, T1_Error appears in the temperature sensor in the steam generator, or P0_Error appears in the air pressure sensor 8, it will also jump to the abnormal alarm state E0. When in the alarm E0 state, an alarm sound will be issued until the user presses the alarm reason information confirmation button on the screen to eliminate the alarm, and the system re-enters the standby gas circuit working state S0. T1_Over can be 130°C and P0_Over can be 2.5bar.

[0060] In the optional scheme of this embodiment, it is more preferred that the steam ablation system for interventional treatment of the respiratory system of this embodiment further includes a trolley 2, which is a movable vehicle body with wheels well known in the art. In this embodiment, the bottom end of the shell 1 is detachably connected to the support plate 5 at the top of the trolley 2; a bottle hanging rack 4 is also provided at the top of the trolley 2, and the bottle hanging rack 4 is used to hang a sterile water bag; the sterile water bag is connected to the sterile water inlet through a connecting pipe; the bottle hanging rack 4 on the top of the trolley 2 is convenient for hanging a sterile water bag, and is easy to use;

[0061] A pull-out cabinet is provided at the bottom of the trolley 2, and the liquid storage tank is arranged in the pull-out cabinet; since the drain valve 18 is connected to the liquid storage tank through the water outlet pipe, a through hole is provided on the support plate 5 at the top of the trolley 2 corresponding to the water outlet pipe to facilitate the water to pass through the support plate 5 and connect to the liquid storage tank; a pull-out cabinet is provided at the bottom of the trolley 2, and the liquid storage tank is arranged in the pull-out cabinet. Since the liquid storage tank usually has a large weight, the center of gravity of the whole system can be lowered, thereby improving the stability of the system.

[0062] In the optional scheme of this embodiment, it is more preferred that the control unit and the steam generating unit are separated by a thermal insulation board. The provision of the thermal insulation board can reduce the impact of the high temperature of the steam generating unit when it is working on the control unit.

[0063] In the optional scheme of this embodiment, it is more preferred that a water collecting tank 19 is further provided in the shell 1 and is located directly below the steam generating unit. The function of the water collecting tank 19 is to collect leaked water after the steam generating unit leaks due to long-term use or other reasons. A liquid leakage sensor is provided in the water collecting tank 19, and the liquid leakage sensor is electrically connected to the control unit. When the liquid leakage sensor detects that there is liquid in the water collecting tank 19, it will send a signal to the control unit. The control unit controls the buzzer to sound an alarm and controls the touch screen 3 to display an alarm message to remind the user that the steam generating unit is leaking and needs maintenance.

[0064] In the optional scheme of this embodiment, preferably, an explosion-proof mesh cover 17 is further provided in the housing 1, and the liquid pump 6 and the steam generator 7 are both provided in the explosion-proof mesh cover 17. During the operation of the steam generator 7, if the internal pressure is too high or the temperature is out of control, the device may rupture or even explode. The explosion-proof mesh cover 17 can prevent debris from flying and reduce damage to surrounding personnel and equipment.

[0065] In the optional scheme of this embodiment, it is more preferred that the handle 20 includes an outer shell 22 and a thermal insulation tube 23, the thermal insulation tube 23 is sleeved on the steam release tube 24, the thermal insulation tube 23 passes through the outer shell 22 and is fixedly connected to the outer shell 22, and a cavity is formed between the thermal insulation tube 23 and the outer shell 22; the thermal insulation tube 23 and the cavity can both play a heat insulation role, which can prevent the high temperature of the steam release tube 24 from being transmitted to the user's hands, thereby protecting the user from the influence of high-temperature steam.

[0066] In the optional scheme of this embodiment, it is more preferred that the material of the hand-held part 21 of the shell 22 is silicone, and the material of other parts of the shell 22 except the hand-held part 21 is engineering plastic. The silicone material of the hand-held part 21 can play the role of heat insulation and improving the stability of the grip feel.

[0067] In this embodiment, a placement rack is further provided on the outer wall of the housing 1 of the host, and the handle 20 can be snapped onto the placement rack. When the handle 20 is not in use, the handle 20 can be snapped onto the placement rack to facilitate the placement of the handle 20.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A steam ablation system for respiratory system interventional treatment, characterized in that: include: A host, the host includes a shell, and a steam generating unit and a control unit are arranged in the shell; the steam generating unit includes a liquid inlet pipe, a liquid pump, a steam generator, a gas-liquid separator, a first main air outlet pipe, a second main air outlet pipe, a first branch air outlet pipe and a second branch air outlet pipe, one end of the liquid inlet pipe is connected to the sterile water inlet on the shell, and the other end is connected to the liquid inlet of the liquid pump, the liquid outlet of the liquid pump is connected to the liquid inlet of the steam generator, the air outlet of the steam generator is connected to the air inlet of the gas-liquid separator, the air outlet of the gas-liquid separator is connected to one end of the first main air outlet pipe, one end of the first branch air outlet pipe and the second branch air outlet pipe are respectively connected to the other end of the first main air outlet pipe, and the other end of the first branch air outlet pipe and the other end of the second branch air outlet pipe is respectively connected with one end of the second main air outlet pipe, and the other end of the second main air outlet pipe is connected with the steam outlet on the shell; a drain valve is arranged on the water outlet of the gas-liquid separator, and the drain valve is connected with the liquid storage tank through the water outlet pipe; a first solenoid valve is arranged on the first branch air outlet pipe, and a second solenoid valve is arranged on the second branch air outlet pipe; an air pressure sensor is arranged on the connecting pipe between the steam generator and the gas-liquid separator, and a temperature sensor is arranged on the second main air outlet pipe; the electromagnetic pump, the steam generator, the air pressure sensor, the gas-liquid separator, the drain valve, the first solenoid valve, the second solenoid valve and the temperature sensor are respectively connected with the control unit signal; A touch screen, which is fixed on the side wall of the housing and is signal-connected to the control unit; A handle, wherein a steam release pipe is fixedly disposed in the handle, one end of the steam release pipe is connected to the steam outlet through a hose, and a steam release button is disposed on the handle, and the steam release button is used to control the opening and closing of the first solenoid valve; A balloon catheter, wherein the air inlet of the balloon catheter is used to communicate with the other end of the steam release tube.

2. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: It also includes a trolley, the bottom end of the shell is detachably connected to the support plate at the top of the trolley; the top of the trolley is also provided with a bottle hanging rack, the bottle hanging rack is used to hang a sterile water bag; the sterile water bag is connected to the sterile water inlet through a connecting pipe; A drawer cabinet is arranged at the bottom of the trolley, and the liquid storage tank is arranged in the drawer cabinet.

3. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: The control unit is separated from the steam generating unit by a heat-insulating plate.

4. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: A water collecting tank is also provided in the shell and is located directly below the steam generating unit.

5. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: An explosion-proof mesh cover is also arranged in the shell, and the liquid pump and the steam generator are both arranged in the explosion-proof mesh cover.

6. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: The handle comprises an outer shell and a thermal insulation pipe, wherein the thermal insulation pipe is sleeved on the steam release pipe, passes through the outer shell and is fixedly connected to the outer shell, and a cavity is formed between the thermal insulation pipe and the outer shell.

7. The steam ablation system for respiratory system interventional treatment according to claim 6, characterized in that: The material of the hand-held part of the shell is silicone, and the material of other parts of the shell except the hand-held part is engineering plastic.

8. The steam ablation system for respiratory system interventional treatment according to claim 1, characterized in that: The control unit is used to switch the gas circuit working state according to the real-time temperature of the temperature sensor and the real-time pressure of the air pressure sensor, and enter the preheating completed and releasable state when the real-time temperature of the temperature sensor is within the expected temperature range and the real-time pressure of the air pressure sensor is within the expected air pressure range.

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