Steam ablation equipment

Abstract

The present invention provides a steam ablation device, including a steam generator, a water level detection device, an ion water detection device, a pressure detection device, a first temperature sensor, a second temperature sensor, a condensation device and a controller, wherein the ion water detection device is arranged between a water source and the water inlet of the steam generator, and the feedback end of the ion water detection device is electrically connected to the controller; the water level detection device is connected to the steam generator, and the feedback end of the water level detection device is electrically connected to the controller; the pressure detection device is connected to the interior of the steam generator, and the feedback end of the pressure detection device is electrically connected to the controller; the first temperature sensor is arranged in the steam generator, and the feedback end of the first temperature sensor is electrically connected to the controller; the second temperature sensor is connected between the condensation device and the steam outlet of the steam generator, and the feedback end of the second temperature sensor is electrically connected to the controller.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a steam ablation device. Background Art

[0002] Steam ablation is an emerging technology that generates high-temperature steam and then applies it to target areas within the patient's body. It can be used to treat local tissue inflammation, repair injuries, and more. Steam ablation can be applied to the bronchi, for example, but is not limited to this application.

[0003] A steam generator may be provided in the steam ablation device. During the steam ablation and its preparation process, water needs to be supplied to the steam generator. During the use of the equipment, it is very important to control the water level inside the steam generator. In the existing related technologies, the control of the steam generator is achieved through manual operation. As a result, the manual operation process is inefficient, and the control effect (for example, whether it can accurately and timely meet the various needs of steam ablation and its preparation work, as well as the specific accuracy and timeliness) depends on the subjective experience of the operator and the reaction during the operation, which is difficult to guarantee. Summary of the Invention

[0004] The present invention provides a steam ablation device to solve the problems of low efficiency and difficulty in ensuring the control effect.

[0005] The present invention provides a steam ablation device, comprising a steam generator, a water level detection device, an ionized water detection device, a pressure detection device, a first temperature sensor, a second temperature sensor, a condensation device and a controller.

[0006] The first end of the ionized water detection device is connected to a water source, the second end of the ionized water detection device is connected to the water inlet of the steam generator, and the feedback end of the ionized water detection device is directly or indirectly electrically connected to the controller to feed back the current ionized water state to the controller;

[0007] The water level detection device is connected to the steam generator, and a feedback end of the water level detection device is directly or indirectly electrically connected to the controller to feed back the current water level of the steam generator to the controller;

[0008] The pressure detection device is connected to the interior of the steam generator, and a feedback end of the pressure detection device is directly or indirectly electrically connected to the controller to feed back the current pressure of the steam generator to the controller;

[0009] The first temperature sensor is provided in the steam generator, and a feedback end of the first temperature sensor is directly or indirectly electrically connected to the controller to feed back the current temperature inside the steam generator to the controller;

[0010] The second temperature sensor is connected between the condensing device and the steam outlet of the steam generator, and a feedback end of the second temperature sensor is directly or indirectly electrically connected to the controller to feed back the current return steam temperature of the condensing device to the controller.

[0011] As can be seen, since the device also includes an ionized water detection device, a temperature sensor, and a pressure detection device, it can accurately and comprehensively monitor the device's operating status in real time, providing an accurate, timely, and effective basis for device control, facilitating device control. On this basis, the present invention can automatically and accurately meet the various requirements of steam ablation and its preparation work in a timely, efficient manner.

[0012] Optionally, the steam ablation device further includes a water pump, a first end of the water pump being connected to a second end of the ionized water detection device, a second end of the water pump being connected to a water inlet of the steam generator, and the water pump being configured to be controllable by the controller.

[0013] Optionally, the steam ablation device further includes a water pump drive circuit, the controlled end of the water pump is electrically connected to the water pump drive circuit, and the water pump drive circuit is electrically connected to the controller.

[0014] The water pump driving circuit is used to respond to the water pump control signal sent by the controller and send a corresponding water pump driving signal to the water pump to drive the water pump to be turned on and off.

[0015] In the above optional solutions, a water pump driving circuit is used to control the water pump, and the water pump driving circuit receives a water pump driving signal sent by the controller to realize automatic control of the water pump.

[0016] Optionally, the water pump drive circuit includes a motor drive chip and a first field effect transistor, the input end of the motor drive chip is electrically connected to the first electrode of the first field effect transistor, the second electrode of the first field effect transistor is grounded, and the gate of the first field effect transistor is electrically connected to the controller.

[0017] The first output end of the motor driver chip is electrically connected to the controlled end of the water pump to drive the water pump to be turned on and off, and the second output end of the motor driver chip is electrically connected to the controller to feed back the water pump driving signal to the controller.

[0018] Optionally, the steam ablation device further includes a heating device, which is provided in the steam generator to heat the environment inside the steam generator, and the heating device is electrically connected to the controller.

[0019] In the above optional scheme, the environment inside the steam generator is heated by a heating device to realize the change of water into water vapor in the steam generator. At the same time, the heating device is electrically connected to the controller. On this basis, combined with a suitable monitoring device, the controller can automatically control the heating device according to the current state of the generator, such as temperature, pressure, etc., to ensure that the equipment works accurately and efficiently.

[0020] Optionally, the steam ablation device further includes an ionized water determination circuit, wherein a first end of the ionized water determination circuit is electrically connected to a feedback end of the ionized water detection device to obtain a resistance detection signal fed back by the ionized water detection device, wherein the resistance detection signal matches the ion content of water in the ionized water detection device.

[0021] The ionized water determination circuit is used to determine whether the water in the detection tube is ionized water according to the resistance detection signal, obtain the current ionized water state, and feed back the current ionized water state to the controller.

[0022] In the above optional scheme, the water transmitted to the steam generator is tested for ion water through the ion water judgment circuit. Therefore, it is convenient to timely monitor the amount of ions in the water entering the steam generator. In addition, it does not rely on manual sampling and testing, which simplifies the procedure of ion water detection and is more efficient.

[0023] Optionally, the ionized water judgment circuit includes a voltage comparator and a reference voltage access module, the first input end of the voltage comparator is electrically connected to the feedback end of the ionized water detection device, the reference voltage access module is electrically connected to the second input end of the voltage comparator to provide a reference voltage to the voltage comparator, and the output end of the voltage comparator is electrically connected to the controller.

[0024] Optionally, the ionized water judgment circuit further includes: a voltage conversion module, which is electrically connected between the feedback end of the ionized water detection device and the first input end of the voltage comparator, and is used to convert the resistance detection signal into voltage and send it to the voltage comparator.

[0025] Optionally, the steam ablation device further includes a water level conversion circuit, the feedback end of the water level detection device is electrically connected to the first end of the water level conversion circuit, and the second end of the water level conversion circuit is electrically connected to the controller.

[0026] The water level conversion circuit obtains the water level detection signal of the water level detection device and feeds back the processed water level detection signal to the controller.

[0027] Optionally, the water level detection device includes a cavity, and a first water level sensor and a second water level sensor provided in the cavity, the cavity is connected to the steam generator, and the water level of the cavity matches the water level of the steam generator.

[0028] The first water level feedback terminal of the first water level sensor is electrically connected to the first input terminal of the water level conversion circuit, and the second water level feedback terminal of the first water level sensor is electrically connected to the second input terminal of the water level conversion circuit;

[0029] The first water level sensor is used for:

[0030] When the current water level reaches a first water level, a first water level detection signal is fed back to the water level conversion circuit; when the current water level reaches a second water level, a second water level detection signal is fed back to the water level conversion circuit;

[0031] The first water level feedback terminal of the second water level sensor is electrically connected to the third input terminal of the water level conversion circuit, and the second water level feedback terminal of the second water level sensor is electrically connected to the fourth input terminal of the water level conversion circuit;

[0032] When the current water level reaches the third water level, the third water level detection signal is fed back to the water level conversion circuit; when the current water level reaches the fourth water level, the fourth water level detection signal is fed back to the water level conversion circuit;

[0033] The first water level is the anti-dry boiling water level, the second water level is the minimum normal water level, the third water level is the maximum normal water level, and the fourth water level is the top filling water level; the anti-dry boiling water level is lower than the minimum normal water level, the minimum normal water level is lower than the maximum normal water level, and the maximum normal water level is lower than the top filling water level.

[0034] In the above scheme, the actual water level in the steam generator can be indirectly reflected by detecting the water level in the cavity, avoiding the need to directly set the water level sensor in the steam generator, thereby avoiding the influence of steam in the steam generator on the water level detection, and ensuring the accuracy of water level detection.

[0035] Optionally, the water level conversion circuit includes a first inverter, a second inverter, a third inverter, a fourth inverter and a port expansion module.

[0036] The input end of the first inverter is electrically connected to the first water level feedback end of the first water level sensor, and the output end of the first inverter is electrically connected to the first input end of the first side of the port expansion module;

[0037] An input end of the second inverter is electrically connected to a second water level feedback end of the first water level sensor, and an output end of the second inverter is electrically connected to a second input end of the first side of the port expansion module;

[0038] The input end of the third inverter is electrically connected to the first water level feedback end of the second water level sensor, and the output end of the third inverter is electrically connected to the third input end of the first side of the port expansion module;

[0039] The input end of the fourth inverter is electrically connected to the second water level feedback end of the second water level sensor, and the output end of the fourth inverter is electrically connected to the fourth input end of the first side of the port expansion module;

[0040] The output end of the second side of the port expansion module is electrically connected to the controller to feed back the current water level of the steam generator to the controller.

[0041] Optionally, the steam ablation device further includes a pressure signal conversion circuit, and the feedback end of the pressure detection device is electrically connected to the first end of the pressure signal conversion circuit to feed back a first pressure electrical signal to the pressure signal conversion circuit, wherein the voltage of the first pressure electrical signal matches the current pressure in the steam generator;

[0042] The second end of the pressure signal conversion circuit is electrically connected to the controller. The pressure conversion circuit is used to convert the first pressure electrical signal into a second pressure electrical signal that can characterize the current pressure, and feed the second pressure electrical signal back to the controller.

[0043] In the above embodiment, the pressure in the steam generator detected by the pressure detection device is fed back to the controller through the pressure signal conversion circuit, thereby achieving real-time monitoring of the pressure in the steam generator. The monitoring is not dependent on manual operation and is more efficient.

[0044] Optionally, the pressure signal conversion circuit includes an analog-to-digital converter, the input end of the analog-to-digital converter is electrically connected to the output end of the pressure detection device, the output end of the analog-to-digital converter is electrically connected to the controller, the analog-to-digital converter is used to convert the first pressure electrical signal into a digital second pressure electrical signal, and the enable end of the analog-to-digital converter is electrically connected to the controller to obtain an enable signal from the controller.

[0045] Optionally, the pressure conversion circuit further includes a buffer, an input end of the buffer is electrically connected to an output end of the analog-to-digital converter, and an output end of the buffer is electrically connected to the controller.

[0046] Optionally, it further includes a first temperature processing circuit and a second temperature processing circuit,

[0047] The feedback terminal of the first temperature sensor is electrically connected to the first terminal of the first temperature processing circuit to feed back a first temperature signal to the first temperature signal conversion circuit, wherein the voltage of the first temperature signal matches the current internal temperature of the steam generator;

[0048] The second end of the first temperature processing circuit is electrically connected to the controller, and the first temperature processing circuit is used to obtain a second temperature signal capable of representing the current temperature in the generator according to the first temperature signal, and feed the second temperature electrical signal back to the controller;

[0049] A feedback terminal of the second temperature sensor is electrically connected to a first terminal of the second temperature processing circuit to feed back a third temperature signal to the second temperature processing circuit, wherein the third temperature signal matches a current return steam temperature of the steam flowing between the steam generator and the condensing device;

[0050] The second end of the second temperature processing circuit is electrically connected to the controller. The second temperature processing circuit is used to obtain a fourth temperature signal that can represent the current return steam temperature based on the third temperature signal, and feed the fourth temperature signal back to the controller.

[0051] In the above embodiment, the temperature inside the steam generator and the temperature of the water vapor discharged from the steam generator are collected by the first temperature sensor and the second temperature sensor, converted into a first temperature signal and a third temperature signal, and fed back to the temperature processing circuit for temperature signal processing, and then fed back to the controller to achieve real-time monitoring of the temperature. It does not rely on manual operation detection, simplifies the temperature detection procedure, and is more efficient.

[0052] Optionally, the first temperature processing circuit includes a first temperature conversion module, wherein a first input end of the first temperature conversion module is electrically connected to the second end of the first temperature sensor, the first input end of the first temperature conversion module is grounded, an output end of the first temperature conversion module is electrically connected to the controller, and a power supply end of the first temperature conversion module is electrically connected to a first power supply;

[0053] The second temperature processing circuit includes a second temperature conversion module, a first input end of the second temperature conversion module is electrically connected to the second end of the second temperature sensor, a second input end of the second temperature conversion module is grounded, an output end of the second temperature conversion module is electrically connected to the controller, and a power supply end of the second temperature conversion module is electrically connected to the first power supply.

[0054] Optionally, a plurality of controlled valve components are further included, wherein the controlled valve components are connected to the steam generator to control the flow of steam and / or water in the steam generator to the outside, and the controlled ends of the controlled valve components are electrically connected to the controller.

[0055] Optionally, the steam ablation device further includes a valve driving circuit, the two ends of which are electrically connected to the controller and the controlled end of the controlled valve, respectively, for driving the controlled valve to open and close under the control of the controller.

[0056] Optionally, the valve driving circuit includes a signal amplification module and a relay;

[0057] The input end of the signal amplifying module is electrically connected to the controller, the output end of the signal amplifying module is electrically connected to the first side of the relay, and the second side of the relay is electrically connected to the controlled end of the controlled valve element.

[0058] In the above optional solutions, the controller generates a driving signal, which is amplified by the signal amplification module and fed back to the relay. The relay controls the controlled valve to open, thereby realizing automatic control of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0060] Figure 1 This is a schematic diagram of the structure of a steam ablation device in one embodiment of the present invention. Figure 1 ;

[0061] Figure 2 This is a schematic diagram of the structure of a steam ablation device in one embodiment of the present invention. Figure 2 ;

[0062] Figure 3 is a schematic diagram of a water pump driving circuit in one embodiment of the present invention;

[0063] Figure 4 is a schematic diagram of an ionized water determination circuit according to an embodiment of the present invention;

[0064] Figure 5 is a circuit diagram of an ionized water determination circuit in one embodiment of the present invention;

[0065] Figure 6 is a schematic diagram of a water level conversion circuit in one embodiment of the present invention;

[0066] Figure 7 is a circuit diagram of a water level conversion circuit in one embodiment of the present invention;

[0067] Figure 8is a schematic diagram of a pressure signal conversion circuit in one embodiment of the present invention;

[0068] Figure 9 is a circuit diagram of a pressure signal conversion circuit in one embodiment of the present invention;

[0069] Figure 10 is a schematic diagram of a first temperature processing circuit in one embodiment of the present invention;

[0070] Figure 11 is a schematic diagram of a second temperature processing circuit in one embodiment of the present invention;

[0071] Figure 12 is a circuit diagram of a first temperature processing circuit in one embodiment of the present invention;

[0072] Figure 13 is a circuit diagram of a second temperature processing circuit in one embodiment of the present invention;

[0073] Figure 14 is a schematic diagram of a valve drive circuit in one embodiment of the present invention;

[0074] Figure 15 is a circuit diagram of a valve drive circuit in one embodiment of the present invention; DETAILED DESCRIPTION

[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0076] In the description of the specification of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper part", "lower part", "upper end", "lower end", "lower surface", "upper surface", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0077] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0078] In the description of the present invention, “plurality” means multiple, such as two, three, four, etc., unless otherwise clearly defined.

[0079] In the description of the present invention, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, or mutual communication; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0081] Please refer to Figure 1 The steam ablation device 1 provided in the embodiment of the present invention includes a steam generator 11, a water level detection device 14, an ionized water detection device 3, a pressure detection device 61, a first temperature sensor 71, a second temperature sensor 72, a condensation device 8 and a controller 12.

[0082] The first end of the ionized water detection device 3 is connected to a water source, the second end of the ionized water detection device 3 is connected to the water inlet of the steam generator 11 through a first three-way structure, and the feedback end of the ionized water detection device 3 is directly or indirectly electrically connected to the controller to feedback the current ionized water state to the controller;

[0083] The water level detection device 14 is connected to the steam generator 11, and a feedback end of the water level detection device 14 is directly or indirectly electrically connected to the controller to feed back the current water level of the steam generator 11 to the controller;

[0084] The pressure detection device 61 is connected to the interior of the steam generator 11 , and a feedback end of the pressure detection device 61 is directly or indirectly electrically connected to the controller to feed back the current pressure of the steam generator 11 to the controller;

[0085] The first temperature sensor 71 is provided in the steam generator 11 , and a feedback end of the first temperature sensor 71 is directly or indirectly electrically connected to the controller 12 to feed back the current temperature inside the steam generator 11 to the controller;

[0086] The second temperature sensor 72 is connected between the condensing device and the steam outlet of the steam generator 11 , and a feedback end of the second temperature sensor 72 is directly or indirectly electrically connected to the controller to feed back the current return steam temperature of the condensing device to the controller.

[0087] The water source 2 can be any device or combination of devices that can accommodate water. Figure 1 In the example shown, it can be independent of the steam ablation device and externally connected to the steam ablation device. In other examples, the water source can also be loaded into the steam ablation device and serve as a part of the steam ablation device.

[0088] The controller 12 can be understood as any device with data processing and communication capabilities, and the program and / or hardware therein can be configured as needed.

[0089] also, Figure 1 In the example shown, the controller 12 is a part of the steam ablation device 1 . In other examples, the controller 12 may be a device independent of the steam ablation device 1 , for example, a host computer capable of communicating with the steam ablation device 1 .

[0090] The steam generator 11 may be understood as any device or combination of devices capable of generating steam based on supplied water, and may include, for example, a steam generating container containing water and water vapor.

[0091] The ion water detection device 3 is disposed between the water source 2 and the steam generator 11 . It first determines the amount of ions in the water source 2 and then transmits the water to the steam generator 11 .

[0092] The condensing device 8 can be understood as a device that converts water vapor into liquid based on the received water vapor, and can be, for example, a spray condenser, a filling condenser, a water spray plate or a sieve plate condenser.

[0093] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. It can be, for example, a thermometer, a non-contact temperature measuring instrument, or a thermocouple. Taking a thermocouple as an example, it is composed of two different conductors or semiconductors forming a loop with their two ends connected to each other. Depending on the temperature difference between the two nodes, an electromotive force (voltage) is generated. This electromotive force is the measured temperature signal.

[0094] It can be seen that the factors that need to be considered for water pump control in the present invention may include the current water level, and the water supply of the steam generator 11 can match the current actual water level. Since the equipment also includes an ion water detection device 3, a temperature sensor, and a pressure detection device 61, the operating status of the equipment can be monitored accurately and comprehensively in real time, providing an accurate, timely and effective basis for the control of the equipment, thereby facilitating the control of the equipment.

[0095] In addition, the control and monitoring of the equipment are automatically implemented by the controller, which does not rely on manual operation and is highly efficient. Moreover, the control results are stable and will not change with the operator's status, cognition, and experience.

[0096] Therefore, the present invention can automatically meet various requirements of steam ablation and its preparation work accurately, timely and efficiently, and the control result has better stability.

[0097] Please refer to Figure 2 In one embodiment, the steam ablation device 1 further includes a water pump driving circuit 16, the controlled end of the water pump 13 is electrically connected to the water pump driving circuit 16, and the water pump driving circuit 16 is also electrically connected to the controller 12.

[0098] The water pump driving circuit 16 is used to respond to the water pump control signal sent by the controller 12 and send a corresponding water pump driving signal to the water pump 13 to drive the water pump 13 to be turned on and off.

[0099] In the above embodiment, the water pump drive circuit 16 is used to control the water pump 13. The water pump drive circuit 16 receives the water pump drive signal sent by the controller 12 to realize automatic control of the water pump 13. It does not rely on manual operation and has high efficiency. In addition, the control result is stable and will not change with the operator's state, cognition, and experience.

[0100] Please refer to Figure 3 The water pump drive circuit 16 includes a motor drive chip U16 and a first field effect transistor Q1. The input end of the motor drive chip U16 is electrically connected to the first electrode of the first field effect transistor Q1. The second electrode of the first field effect transistor Q1 is grounded. The gate of the first field effect transistor Q1 is electrically connected to the controller 12.

[0101] The first output end of the motor driver chip U16 is electrically connected to the controlled end of the water pump 13 to drive the water pump 13 to be turned on and off. The second output end of the motor driver chip U16 is electrically connected to the controller 12 to feed back the water pump driving signal to the controller 12.

[0102] In one embodiment, the water pump drive circuit 16 further includes a voltage regulator diode Dz and a first drive resistor R161, wherein the voltage regulator diode Dz is electrically connected between the gate and the second electrode of the first field effect transistor Q1, and the first drive resistor R161 is electrically connected between the gate and the second electrode of the first field effect transistor Q1.

[0103] In one embodiment, the water pump drive circuit 16 further includes a second drive resistor R162, a third drive resistor R163, a first diode D161, a second diode D162 and a drive capacitor C16, wherein the second drive resistor R162 is electrically connected between the second output terminal of the motor drive chip U16 and the ground;

[0104] The third driving resistor R163 is electrically connected between the second output terminal of the motor driving chip U16 and the controller 12;

[0105] The anode of the first diode D161 is electrically connected to the ground, and the cathode of the first diode D161 is electrically connected to the first output terminal of the motor driver chip U16;

[0106] The anode of the second diode D162 is electrically connected to the first output terminal of the motor driver chip U16, and the cathode of the second diode D162 is electrically connected to the second power supply Vcc2;

[0107] The driving capacitor C16 is electrically connected between the second power supply Vcc2 and ground.

[0108] In one embodiment, the steam ablation device 1 further includes a heating device 111 . The heating device 111 is provided in the steam generator 11 to heat the internal environment of the steam generator 11 . The heating device 111 is electrically connected to the controller 12 .

[0109] In the above embodiment, the environment inside the steam generator 11 is heated by the heating device 111 to realize the change from water to water vapor in the steam generator 11. At the same time, the heating device 111 is electrically connected to the controller. On this basis, the controller 12 can automatically control the heating device 111 according to the current state of the generator, such as temperature, pressure, water level, etc., to ensure that the equipment works accurately and efficiently.

[0110] The heating device 111 can be any device capable of heating the environment within the steam generator 11. Specifically, the heating device 111 can be fixedly mounted on the steam generator 11 (e.g., within the steam generator 11) and / or connected to the steam generator via a heat-conducting material. As long as heating is achieved, any method of mounting the heating device or any configuration of the heating device remains within the scope of the present invention. The heating device 111 can be located at the bottom of the steam generator.

[0111] In one example, the heating device 111 may include at least two heaters. The different heaters may be the same component or different components. For example, the heater may be a heating rod or a heating coil. The at least two heaters may include at least one heating rod and at least one heating coil. The heating capacity (e.g., maximum heating power) of the heating rod may be higher than that of the heating coil. Thus, the corresponding heater may be selected for heating according to needs.

[0112] In one embodiment, the steam ablation device 1 further includes an ionized water determination circuit 33, a first end of which is electrically connected to a feedback end of the ionized water detection device 3 to obtain a resistance detection signal fed back by the ionized water detection device 3, wherein the resistance detection signal matches the ion content of the water in the ionized water detection device 3.

[0113] The ionized water determination circuit 33 is used to determine whether the water in the ionized water detection device 3 is ionized water according to the resistance detection signal, obtain the current ionized water state, and feed the current ionized water state back to the controller 12 .

[0114] In the above embodiment, the water transmitted to the steam generator 11 is detected for ion water by the ion water judgment circuit 33, so that the amount of ions in the water entering the steam generator can be monitored in a timely manner. In addition, manual sampling and detection are not required, which simplifies the procedure of ion water detection and is more efficient.

[0115] Please refer to Figure 4 In one embodiment, the ionized water judgment circuit 33 includes a voltage comparator U33 and a reference voltage access module 331. The first input end of the voltage comparator U33 is electrically connected to the second end of the detection probe 32. The reference voltage access module 331 is electrically connected to the second input end of the voltage comparator U33 to provide a reference voltage to the voltage comparator U33. The output end of the voltage comparator U33 is electrically connected to the controller 12.

[0116] In the above implementation, the reference voltage can reflect the voltage signal threshold when the ion amount is at a normal level. By introducing the reference voltage and adopting a physical method, the judgment of ionized water is achieved, avoiding the tedious steps of manual detection and being simpler and faster.

[0117] Please refer to Figure 5 In one embodiment, the reference voltage access module 331 includes: a first reference resistor R331 and a second reference resistor R332.

[0118] The second input terminal of the voltage comparator U33 is electrically connected to the power supply Vcc3 through the first reference resistor R331.

[0119] One end of the second reference resistor R332 is electrically connected to the second input end of the voltage comparator U33 , and the other end of the second reference resistor R332 is grounded.

[0120] In one embodiment, the ionized water judgment circuit 33 also includes: a voltage conversion module 332, which is electrically connected between the second end of the detection probe 32 and the first input end of the voltage comparator U33, and is used to convert the resistance detection signal into voltage and send it to the voltage comparator U33.

[0121] In the above embodiment, the resistance detection signal detected by the detection probe 32 is converted into a voltage so that the voltage comparator U33 can perform voltage comparison to obtain the judgment result of the current ionized water state.

[0122] Specifically, when the water to be detected is pure water, the sensor resistance is large (for example, infinite), the resistance detection signal is also large, the input voltage of the positive terminal (i.e., the first input terminal) of the voltage comparator U33 is greater than the voltage of the negative terminal (i.e., the second input terminal), and the voltage comparator U33 outputs a high level;

[0123] When the water to be detected is ionized water, the sensor resistance decreases due to the increase of electrolytes in the water, and the corresponding resistance detection signal also becomes smaller. The input voltage of the positive end (i.e., the first input end) of the voltage comparator U33 is less than the voltage of the negative end (i.e., the second input end), and the voltage comparator U33 outputs a low level.

[0124] In one embodiment, the voltage conversion module 332 includes: a first conversion resistor R333, a second conversion resistor R334 and a third conversion resistor R335;

[0125] A first end of the first conversion resistor R333 is electrically connected to a first end of the second conversion resistor R334 , and a second end of the first conversion resistor R333 is electrically connected to the power supply Vcc3 ;

[0126] A first end of the second conversion resistor R334 is electrically connected to the second end of the detection probe 32 , and a second end of the second conversion resistor R334 is electrically connected to the first input end of the voltage comparator U33 ;

[0127] A first end of the third conversion resistor R335 is electrically connected to the first end of the first conversion resistor R333 , and a second end of the third conversion resistor R335 is grounded.

[0128] In one embodiment, the ionized water determination circuit 33 further includes a feedback resistor R336 and a pull-up resistor R337;

[0129] The feedback resistor R336 is electrically connected between the first input terminal of the voltage comparator U33 and the output terminal of the voltage comparator U33;

[0130] One end of the pull-up resistor R337 is electrically connected to the output end of the voltage comparator U33 , and the other end of the pull-up resistor R337 is electrically connected to the power supply Vcc3 .

[0131] Among them, the function of the feedback resistor R336 is to generate hysteresis to prevent the circuit from oscillating. The principle is similar to that of the Schmitt trigger, that is, when the compared voltage changes from low to high, the comparator has a higher flip level; and when the compared voltage changes from high to low, it has a lower flip level. The difference in flip voltage is commonly known as hysteresis, and the size of the feedback resistor determines the size of the hysteresis voltage.

[0132] In one embodiment, the steam ablation device 1 further includes a water level conversion circuit 15, the feedback end of the water level detection device 14 is electrically connected to the first end of the water level conversion circuit 15, and the second end of the water level conversion circuit 15 is electrically connected to the controller 12.

[0133] The water level conversion circuit 15 obtains the water level detection signal from the water level detection device 14 and feeds back the processed water level detection signal to the controller 12 .

[0134] In one embodiment, the water level detection device 14 includes a cavity, and a first water level sensor 141 and a second water level sensor 142 provided in the cavity. The cavity is connected to the steam generator 11, and the water level of the cavity matches the water level of the steam generator 11.

[0135] The first water level feedback terminal of the first water level sensor 141 is electrically connected to the first input terminal of the water level conversion circuit 15, and the second water level feedback terminal of the first water level sensor 141 is electrically connected to the second input terminal of the water level conversion circuit 15;

[0136] The first water level sensor 141 is used to:

[0137] When the current water level reaches a first water level, a first water level detection signal is fed back to the water level conversion circuit; when the current water level reaches a second water level, a second water level detection signal is fed back to the water level conversion circuit;

[0138] The first water level feedback terminal of the second water level sensor 142 is electrically connected to the third input terminal of the water level conversion circuit 15 , and the second water level feedback terminal of the second water level sensor 142 is electrically connected to the fourth input terminal of the water level conversion circuit 15 ;

[0139] When the current water level reaches the third water level, the third water level detection signal is fed back to the water level conversion circuit 15; when the current water level reaches the fourth water level, the fourth water level detection signal is fed back to the water level conversion circuit;

[0140] The first water level is the anti-dry boiling water level, the second water level is the minimum normal water level, the third water level is the maximum normal water level, and the fourth water level is the top filling water level; the anti-dry boiling water level is lower than the minimum normal water level, the minimum normal water level is lower than the maximum normal water level, and the maximum normal water level is lower than the top filling water level.

[0141] In the above scheme, the actual water level in the steam generator 11 can be indirectly reflected by detecting the water level in the cavity, avoiding the need to directly set the water level sensor in the steam generator, thereby avoiding the influence of steam in the steam generator on the water level detection, and ensuring the accuracy of water level detection.

[0142] Please refer to Figure 6 The water level conversion circuit 15 includes a first inverter U151, a second inverter U152, a third inverter U153, a fourth inverter U154 and a port expansion module 151.

[0143] The input end of the first inverter U151 is electrically connected to the first water level feedback end of the first water level sensor 141 , and the output end of the first inverter U151 is electrically connected to the first input end of the first side of the port expansion module 151 ;

[0144] The input end of the second inverter U152 is electrically connected to the second water level feedback end of the first water level sensor 141 , and the output end of the second inverter U152 is electrically connected to the second input end of the first side of the port expansion module 151 ;

[0145] The input end of the third inverter U153 is electrically connected to the first water level feedback end of the second water level sensor 142 , and the output end of the third inverter U153 is electrically connected to the third input end of the first side of the port expansion module 151 ;

[0146] The input end of the fourth inverter U154 is electrically connected to the second water level feedback end of the second water level sensor 142 , and the output end of the fourth inverter U154 is electrically connected to the fourth input end of the first side of the port expansion module 151 ;

[0147] The output end of the second side of the port expansion module 151 is electrically connected to the controller 12 .

[0148] In the above embodiment, the water level detection signals detected at both ends of the first water level sensor 141 and the second water level sensor 142 are processed (for example, amplified) by an inverter, and a standard voltage signal is fed back to the port expansion module 151, and the water level detection result is fed back to the controller 12 via the port expansion module 151. At the same time, based on the port expansion module, it can also play a positive effect of saving controller ports.

[0149] Please refer to Figure 7 The water level conversion circuit 15 further includes four filter modules 152 , and the filter modules 152 are electrically connected between the corresponding water level feedback terminals and the inverters.

[0150] In the above implementations, the filtering module may filter the received water level detection signal to reduce interference from other frequency signals.

[0151] In one embodiment, the filter module includes a filter resistor Rf and a filter capacitor Cf, the filter resistor Rf is electrically connected between the corresponding water level feedback terminal and the inverter, and the filter capacitor Cf is electrically connected between the corresponding inverter and ground.

[0152] In one embodiment, the water level conversion circuit further includes a first pull-up resistor R151, a second pull-up resistor R152, a third pull-up resistor R153 and a fourth pull-up resistor R154;

[0153] One end of the first pull-up resistor R151 is electrically connected to the first power supply Vcc1, and the other end of the first pull-up resistor R151 is electrically connected to the first water level feedback end of the first water level sensor 141;

[0154] One end of the second pull-up resistor R152 is electrically connected to the first power supply Vcc1, and the other end of the second pull-up resistor R152 is electrically connected to the second water level feedback end of the first water level sensor 141;

[0155] One end of the third pull-up resistor R153 is electrically connected to the first power supply Vcc1, and the other end of the third pull-up resistor R153 is electrically connected to the first water level feedback end of the second water level sensor 142;

[0156] One end of the fourth pull-up resistor R154 is electrically connected to the first power supply Vcc1 , and the other end of the fourth pull-up resistor R154 is electrically connected to the second water level feedback end of the second water level sensor 142 .

[0157] In one embodiment, the steam ablation device 1 further includes a pressure signal conversion circuit 62, and a feedback end of the pressure detection device 61 is electrically connected to a first end of the pressure signal conversion circuit 62 to feed back a first pressure electrical signal to the pressure signal conversion circuit 62, wherein the voltage of the first pressure electrical signal matches the current pressure in the steam generator 11;

[0158] The second end of the pressure signal conversion circuit 62 is electrically connected to the controller 12 , and the pressure signal conversion circuit 62 is used to convert the first pressure electrical signal into a second pressure electrical signal that can characterize the current pressure, and feed the second pressure electrical signal back to the controller 12 .

[0159] Among them, the first pressure electrical signal matches the pressure in the steam generator 11. It can be understood that the first pressure electrical signal is the pressure in the steam generator 11 detected by the pressure detection device 61, and the pressure value in the steam generator 11 is converted into an electrical signal, that is, the first pressure electrical signal. The first pressure electrical signal is a simulated pressure electrical signal.

[0160] The pressure detection device 61 detects the pressure inside the steam generator 11, converts the current pressure inside the steam generator 11 into an outputtable first pressure electrical signal, and feeds the first pressure electrical signal back to the pressure signal conversion circuit 62. The pressure signal conversion circuit 62 processes the obtained first pressure electrical signal (for example, analog-to-digital conversion, filtering, amplification, etc.) to obtain a second pressure electrical signal, and feeds the second pressure electrical signal back to the controller 12.

[0161] The pressure detection device 61 can be any device capable of monitoring the gas pressure in the steam generator 11. In another example, the pressure detection device 61 can be located outside the steam generator, for example, at any outlet or pipe of the steam generator that can be used for gas discharge. Accordingly, monitoring the current pressure can be performed to determine whether the pressure has reached a specified pressure.

[0162] The pressure detection device 61 may be, for example, a pressure sensor or a pressure detector. Taking the pressure sensor as an example, multiple pressure sensors may be used to monitor pressure signals at different positions in the steam generator 11 and / or monitor the pressure at the steam generator outlet and pipeline.

[0163] In the above embodiment, the pressure in the steam generator 11 detected by the pressure detection device 61 is fed back to the controller 12 through the pressure signal conversion circuit 62, thereby achieving real-time monitoring of the pressure in the steam generator 11 and providing a basis for pressure-based automatic control.

[0164] Therefore, the pressure in the steam generator can be controlled in real time and accurately, and the control implemented based on this (such as heating control, exhaust control, etc.) can be more accurate and safe.

[0165] Please refer to Figure 8 In one embodiment, the pressure signal conversion circuit 62 includes an analog-to-digital converter U621, the input end of the analog-to-digital converter U621 is electrically connected to the output end of the pressure detection device 61, and the output end of the analog-to-digital converter U621 is electrically connected to the controller 12. The analog-to-digital converter U621 is used to convert the first pressure electrical signal into a digital second pressure electrical signal.

[0166] In one embodiment, the enable terminal of the analog-to-digital converter U621 is electrically connected to the controller 12 to obtain an enable signal from the controller 12 .

[0167] In the above embodiment, the enable terminal of the analog-to-digital converter U621 is electrically connected to the controller 12 , and the working state of the analog-to-digital converter U621 can be controlled by the controller 12 .

[0168] In one embodiment, the pressure signal conversion circuit 62 further includes a buffer U622 , an input end of the buffer U622 is electrically connected to an output end of the analog-to-digital converter U621 , and an output end of the buffer U622 is electrically connected to the controller 12 .

[0169] In the above embodiment, a buffer U622 is provided between the output end of the analog-to-digital converter U621 and the controller 12 to increase the data bus driving capability and reduce the bus load capacitance, while also playing an isolation role.

[0170] In one embodiment, the enable terminal of the buffer U622 is electrically connected to the enable terminal of the analog-to-digital converter U621 to obtain the enable signal.

[0171] In the above embodiment, the buffer U622 and the analog-to-digital converter U621 use the same enable signal to achieve synchronous operation of the buffer U622 and the analog-to-digital converter U621.

[0172] Please refer to Figure 9 In one embodiment, the pressure signal conversion circuit 62 further includes a connector J62, and the analog-to-digital converter U621 is electrically connected to the pressure detection device 61 through the connector J62.

[0173] In one example, the connection relationship and working process of the pressure signal conversion circuit are as follows:

[0174] Pin 1 of the first side of the analog-to-digital converter U621 is electrically connected to the controller 12 to receive a serial clock signal from the controller 12. Pin 2 of the first side of the analog-to-digital converter U621 is electrically connected to a first end of the crystal oscillator Y62. Pin 3 of the first side of the analog-to-digital converter U621 is electrically connected to a second end of the crystal oscillator Y62. The crystal oscillator Y62 generates a clock signal and inputs it into the analog-to-digital converter U621.

[0175] Pin 4 of the first side of the analog-to-digital converter U621 is connected to ground via the first pressure resistor R621. Pin 5 of the first side of the analog-to-digital converter U621 is electrically connected to a first end of a second pressure resistor R622. A second end of the second pressure resistor R622 is electrically connected to one end of a third pressure capacitor C623 and a power supply Vcc4. The other end of the third pressure capacitor C623 is grounded.

[0176] Pin 9 on the first side of the analog-to-digital converter U621 is electrically connected to the connector J62, the first end of the inductor L62, and the first end of the fourth pressure capacitor C624. The second end of the fourth pressure capacitor C624 is grounded.

[0177] Pins 10 and 11 of the first side of the analog-to-digital converter U621 are electrically connected to the connector J62 to receive the first pressure electrical signal from the pressure detection device 61;

[0178] Pin 14 of the second side of the analog-to-digital converter U621 is electrically connected to a first end of the inductor L62 and a first end of the fourth pressure capacitor C624;

[0179] Pins 18 and 23 on the second side of the analog-to-digital converter U621 are electrically connected to the power supply Vcc4, and pins 19 and 22 on the second side of the analog-to-digital converter U621 are electrically connected to the controller 12 to receive the enable signal and input signal from the controller. Pin 21 on the second side of the analog-to-digital converter U621 is electrically connected to the input end of the buffer U622 to feed back the second pressure electrical signal obtained after the analog-to-digital conversion to the buffer U622.

[0180] One end of the first pressure capacitor C621 is electrically connected to the first end of the crystal oscillator Y62, and one end of the first pressure capacitor C621 is grounded;

[0181] One end of the second pressure capacitor C622 is electrically connected to the second end of the crystal oscillator Y62, and one end of the second pressure capacitor C622 is grounded;

[0182] A second end of the inductor L62 is electrically connected to the power supply Vcc5 and a first end of the fifth pressure capacitor C625 , and a second end of the fifth pressure capacitor C625 is grounded;

[0183] The first ends of the sixth pressure capacitor C626 and the seventh pressure capacitor C627 are electrically connected to the first end of the inductor L62 , and the second ends of the sixth pressure capacitor C626 and the seventh pressure capacitor C627 are grounded.

[0184] The fifth pressure capacitor C625 and the seventh pressure capacitor C627 are polar capacitors, and correspondingly, the first ends are positive electrodes.

[0185] In one embodiment, the steam ablation device 1 further includes a first temperature processing circuit 73 and a second temperature processing circuit 74.

[0186] The first temperature sensor 71 is provided in the steam generator 11. A feedback terminal of the first temperature sensor 71 is electrically connected to a first terminal of the first temperature processing circuit 73 to feed back a first temperature signal to the first temperature signal conversion circuit 73. The voltage of the first temperature signal matches the current internal temperature of the steam generator 11.

[0187] The second end of the first temperature processing circuit 73 is electrically connected to the controller 12. The first temperature processing circuit 73 is used to obtain a second temperature signal that can represent the current temperature in the steam generator 11 according to the first temperature signal, and feed the second temperature signal back to the controller 12.

[0188] The steam outlet of the steam generator 11 is connected to the condensing device 8, and the second temperature sensor 72 is provided between the steam outlet of the steam generator 11 and the condensing device 8;

[0189] A feedback terminal of the second temperature sensor 72 is electrically connected to a first terminal of the second temperature processing circuit 74 to feed back a third temperature signal to the second temperature processing circuit 74, wherein the third temperature signal matches the current return steam temperature of the steam flowing between the steam generator 11 and the condensing device 8;

[0190] The second end of the second temperature processing circuit 74 is electrically connected to the controller 12 . The second temperature processing circuit 74 is used to obtain a fourth temperature signal that can represent the current return steam temperature based on the third temperature signal, and feed the fourth temperature signal back to the controller 12 .

[0191] In the above embodiment, the temperature inside the steam generator 11 and the temperature of the water vapor discharged from the steam generator 11 are collected by the first temperature sensor 71 and the second temperature sensor 72, converted into a first temperature signal and a third temperature signal, and fed back to the temperature processing circuit for temperature signal processing, and then fed back to the controller 12, thereby realizing real-time monitoring of the temperature, and does not rely on manual operation, simplifying the temperature detection procedure and improving efficiency.

[0192] Please refer to Figures 10 to 11 In one embodiment, the first temperature processing circuit 73 includes a first temperature conversion module U73, a first input end of the first temperature conversion module U73 is electrically connected to the second end of the first temperature sensor 71, the first input end of the first temperature conversion module U73 is grounded, an output end of the first temperature conversion module U73 is electrically connected to the controller 12, and a power supply end of the first temperature conversion module U73 is electrically connected to a power supply Vcc6;

[0193] The second temperature processing circuit 74 includes a second temperature conversion module U74, a first input end of the second temperature conversion module U74 is electrically connected to the second end of the second temperature sensor 72, a second input end of the second temperature conversion module U74 is grounded, an output end of the second temperature conversion module U74 is electrically connected to the controller 12, and a power supply end of the second temperature conversion module U74 is electrically connected to the power supply Vcc7.

[0194] Please refer to Figures 12 to 13 In one embodiment, the first temperature processing circuit 73 further includes a first filter capacitor C731 and a second filter capacitor C732;

[0195] The first filter capacitor C731 is electrically connected between the first input terminal and the second input terminal of the first temperature conversion module U73; the second filter capacitor C732 is electrically connected between the first input terminal and the second input terminal of the first temperature conversion module U73;

[0196] The second temperature processing circuit 74 further includes a third filter capacitor C741 and a fourth filter capacitor C742;

[0197] The third filter capacitor C741 is electrically connected between the first input terminal and the second input terminal of the second temperature conversion module U74; the fourth filter capacitor C742 is electrically connected between the first input terminal and the second input terminal of the second temperature conversion module U74.

[0198] In the above implementation, the first filter capacitor C731, the second filter capacitor C732, the third filter capacitor C741, and the fourth filter capacitor C742 filter the first temperature signal and the third temperature signal, reduce interference from other frequency signals, and prevent false triggering of the sensor during shaking of the device.

[0199] In one embodiment, the first temperature processing circuit 73 further includes a first voltage stabilizing capacitor C733 and a second voltage stabilizing capacitor C734;

[0200] The two ends of the first voltage-stabilizing capacitor C733 are electrically connected to the power supply terminal of the first temperature conversion module U73 and the ground respectively; the two ends of the second voltage-stabilizing capacitor C734 are electrically connected to the power supply terminal of the first temperature conversion module U73 and the ground respectively;

[0201] The second temperature processing circuit 74 further includes a third voltage stabilizing capacitor C743 and a fourth voltage stabilizing capacitor C744;

[0202] Two ends of the third voltage-stabilizing capacitor C743 are electrically connected to the power supply terminal and the ground of the second temperature conversion module U74 respectively; two ends of the fourth voltage-stabilizing capacitor C744 are electrically connected to the power supply terminal and the ground of the second temperature conversion module U74 respectively.

[0203] In one embodiment, the first temperature processing circuit 73 further includes a first voltage-stabilizing resistor R73, one end of the first voltage-stabilizing resistor R73 is electrically connected to the power supply Vcc6, and the other end of the first voltage-stabilizing resistor R73 is electrically connected to the output end of the first temperature conversion module U73;

[0204] The second temperature processing circuit 74 further includes a second voltage-stabilizing resistor R74 , one end of which is electrically connected to the power supply Vcc7 , and the other end of which is electrically connected to the output end of the second temperature conversion module U74 .

[0205] In one embodiment, an enable terminal of the first temperature conversion module U73 is electrically connected to the controller 12 ; an enable terminal of the second temperature conversion module U74 is electrically connected to the controller 12 .

[0206] In the above embodiment, the enable end of the first temperature conversion module U73 is electrically connected to the controller 12 , and the enable end of the second temperature conversion module U74 is electrically connected to the controller 12 , and the operations of the first temperature conversion module U73 and the second temperature conversion module U74 can be controlled by the controller 12 .

[0207] In one embodiment, the steam ablation device 1 further includes a plurality of controlled valve components, which are connected to the steam generator to control the flow of steam and / or water in the steam generator to the outside, and the controlled ends of the controlled valve components are electrically connected to the controller.

[0208] In some examples, the controlled valve element 41 may be, for example:

[0209] a first controlled valve disposed between the water pump 13 and the condensing device 8 , wherein a controlled end of the first controlled valve is electrically connected to the controller 12 ;

[0210] a second controlled valve element provided at the heat exhaust outlet 113 of the steam generator 11 , wherein a controlled end of the second controlled valve element is electrically connected to the controller 12 ;

[0211] a third controlled valve disposed between the first interface of the second three-way structure 17 and the cold discharge outlet 112 of the steam generator 11, wherein the controlled end of the third controlled valve is electrically connected to the controller 12; the second interface of the second three-way structure 17 is connected to the water level detection device 14, and the third interface of the second three-way structure 17 is connected to the steam generator 11;

[0212] a fourth controlled valve element provided between the steam outlet of the steam generator 11 and the condensing device 8, wherein a controlled end of the fourth controlled valve element is electrically connected to the controller;

[0213] A fifth controlled valve component is provided between the steam outlet of the steam generator 11 and the nozzle of the steam ablation handle, and a controlled end of the fifth controlled valve component is electrically connected to the controller.

[0214] The specific controlled valve components used are not limited to the above examples, and any use of the controlled valve components does not depart from the scope of the embodiments of the present invention.

[0215] Please refer to Figure 14 In one embodiment, the steam ablation device 1 further includes a valve driving circuit 42, the two ends of which are electrically connected to the controller 12 and the controlled end of the controlled valve component 41, respectively, for driving the controlled valve component 41 to open and close under the control of the controller 12.

[0216] The controlled valve component 41 may be any one of the first controlled valve component, the second controlled valve component, the third controlled valve component and the fourth controlled valve component.

[0217] For example, when the fourth controlled valve is controlled to be open, steam can be discharged to the steam outlet of the steam ablation handle, and when the third controlled valve is controlled to be open, steam can be discharged to the condensation device. The number of controlled valves, as well as other components and pipelines between the controlled valves and the steam generator, the steam outlet, and the condensation device, can be varied without departing from the scope of the embodiments of the present invention.

[0218] In the above embodiment, the discharge of water and / or steam in the steam generator can be controlled by the controlled valve component, wherein the discharge process is automatically implemented by the controller without the need for manual operation, which is more efficient. At the same time, since the controlled valve component and the pressure detection device are both connected to the control device, on this hardware basis, it can help to realize pressure-based valve component control, providing a basis for the control of processes such as heat exhaust, pressure relief, jet injection, and cold exhaust.

[0219] Please refer to Figure 7 In one embodiment, the valve driving circuit 42 includes a signal amplifying module 421 and a relay 422;

[0220] In the above embodiment, the controller 12 generates a driving signal, which is processed by the signal amplification module 421 (for example, but not limited to amplification) and fed back to the relay 422. The relay 422 controls the controlled valve to open, thereby achieving the discharge of water vapor.

[0221] An input end of the signal amplifying module 421 is electrically connected to the controller 12 , an output end of the signal amplifying module 421 is electrically connected to a first side of the relay 422 , and a second side of the relay 422 is electrically connected to a controlled end of the valve element 41 .

[0222] Please refer to Figure 8 In one embodiment, the signal amplification module 421 includes a power amplifier chip U42, a first power amplification resistor R42, a capacitor C42, and a power supply Vcc. The input end of the power amplifier chip U42 is electrically connected to the controller 12, the output end of the power amplifier chip U42 is electrically connected to the input side of the relay 422, and the power supply end of the power amplifier chip U42 is electrically connected to the power supply Vcc.

[0223] A first end of the first power amplifying resistor R42 is electrically connected to the controller 12 , and a second end of the first power amplifying resistor R42 is electrically connected to the ground end of the power amplifying chip U42 ;

[0224] Capacitor C42 is connected between the power supply Vcc and ground to achieve a filtering function.

[0225] In the above embodiment, the controller generates a driving signal, which is amplified by the signal amplification module and fed back to the relay. The relay controls the controlled valve to open, thereby realizing automatic control of the pipeline.

[0226] Based on the detection of the water level and the control of the water pump, in one embodiment, the controller can be used to control the water pump according to the current water level.

[0227] In one embodiment, when the controller controls the water pump according to the current water level, it is specifically configured to:

[0228] If the vapor ablation device is in a filled state, then:

[0229] Controlling the water pump to start and shut down the water pump after the set water pump stop time ends;

[0230] According to the current water level, and the specified anti-dry boiling water level, minimum normal water level and maximum normal water level, the water pump is controlled to start again or remain closed, wherein the anti-dry boiling water level is lower than the minimum normal water level, and the minimum normal water level is lower than the maximum normal water level.

[0231] According to the current water level, and the specified anti-dry boil water level, minimum normal water level, and maximum normal water level, controlling the water pump to restart or remain shut down includes:

[0232] If the current water level is higher than the dry boil prevention water level and lower than the minimum normal water level, the water pump is controlled to restart, and after restarting, the water pump is controlled according to the accumulated water pump startup time and the current water level;

[0233] If the current water level is higher than the minimum normal water level and lower than the maximum normal water level, controlling the water pump to start again;

[0234] If the current water level is higher than or equal to the maximum normal water level, the water pump is controlled to remain closed.

[0235] Furthermore, controlling the water pump according to the accumulated water pump start time and the current water level includes:

[0236] If the current water level is higher than or equal to the maximum normal water level, controlling the water pump to shut down;

[0237] After the accumulated water pump start time reaches the set filling time threshold, if the current water level is still lower than the minimum normal water level, an error is reported;

[0238] When the accumulated water pump filling time does not reach the filling time threshold, if the current water level is higher than or equal to the minimum normal water level and lower than the maximum normal water level, the water pump is controlled to remain started.

[0239] In another embodiment, when the controller controls the water pump according to the current water level, it is specifically configured to:

[0240] If the steam ablation device is in the preheating state or the standby state, then:

[0241] When the current water level is higher than or equal to the minimum normal water level and lower than the maximum normal water level, controlling the water pump to be in a starting state;

[0242] When the current water level is higher than or equal to the maximum normal water level, the water pump is controlled to be in a closed state.

[0243] In another embodiment, when the controller controls the water pump according to the current water level, it is specifically configured to:

[0244] If the steam ablation device is in the ablation preparation state, then:

[0245] If the current water level is higher than or equal to the minimum normal water level and lower than the maximum normal water level, the water pump is controlled to be in an off state and maintained for a set water pump off time, and then the water pump is started and maintained for a set water pump start time;

[0246] If the current water level is higher than or equal to the maximum normal water level, the water pump is controlled to be in an off state.

[0247] In one embodiment, the control device controls the heating device based on the current water level, the current pressure, and the current temperature within the generator. This control process can be used when the steam ablation device is in a heating state, such as preheating, standby, or ablation preparation.

[0248] Wherein, when the control device controls the heating device according to the current water level, the current pressure and the current temperature in the generator, it is specifically used to:

[0249] Controlling the heating device to turn on or off according to the current water level and a designated anti-dry boiling water level and / or a minimum normal water level;

[0250] After the heating device is turned on, the heating power of the heating device is controlled according to the current pressure and the current temperature in the generator.

[0251] When the control device controls the heating device to be turned on or off according to the current water level and the specified anti-dry boiling water level and / or the minimum normal water level, it is specifically used to:

[0252] If the current water level is higher than or equal to a specified minimum normal water level, turning on the heating device;

[0253] If the current water level is lower than the minimum normal water level and higher than or equal to the anti-dry boiling water level, the heating device is turned off.

[0254] When the control device controls the heating power of the heating device according to the current pressure and the current temperature in the generator, it is specifically used to:

[0255] When the current pressure or the current temperature in the generator is within a set first range, controlling the turned-on heating device to heat at a target power; the target power matches the heating power when all heaters in the heating device are turned on;

[0256] When the current pressure or the current temperature in the generator is in the second range, the heating power of the heating device is adjusted according to the current temperature in the generator, the current pressure, and the set target parameters. The value of the second range is higher than the first range. The target parameters include target temperature and target pressure. The target temperature or the target pressure is in the second range.

[0257] The aforementioned multiple operating states of the steam ablation device can be understood as follows: different operating states correspond to different working processes of the steam ablation process, and corresponding working processes can be implemented in corresponding operating states. A brief description of each is provided below.

[0258] The filling state may refer to a state in which the steam generator can be filled with water but not preheated; specifically, it may refer to a state in which the steam generator is filled with water but not preheated after the steam ablation device is powered on for self-test (or after steam ablation is performed, or after any other state), and the water level in the steam generator reaches at least the minimum normal water level.

[0259] The preheating state may refer to a state in which the environment inside the steam generator is preheated; specifically, it may refer to a state in which the environment inside the steam generator is preheated after the filling state (or after steam ablation is implemented, or after any other state), and the steam in the steam generator is allowed to exceed the temperature required for disinfection and the temperature required for steam ablation.

[0260] In addition, when in the filling state and the preheating state, the steam generating device can be controlled to be connected to the condensing device, or can be controlled not to be connected to the condensing device.

[0261] The standby state may refer to a state in which the steam generator meets the requirements of steam ablation, and specifically may refer to a state in which the steam ablation device is sterilized after the preheating state (or after steam ablation is implemented, or after any other state), and the steam generator meets the requirements of steam ablation.

[0262] Furthermore, during at least part of the disinfection process, the steam generator can be controlled to connect to the steam ablation handle, thereby delivering steam (steam above the disinfection temperature threshold) to the disinfection handle for disinfection. After the set disinfection time, the disinfection process can be considered complete. After disinfection, the steam generator can be controlled to connect to the condensing device, thereby continuously generating steam for recycling.

[0263] The ablation preparation state may refer to a state in which the steam generator is kept able to always meet the steam ablation requirements, specifically, a state in which the steam generator is kept able to always meet the steam ablation requirements after the standby state (or after steam ablation is performed).

[0264] In addition, when the steam ablation device is in the ablation preparation state, the steam generator can be controlled to be connected to the condensation device, thereby continuously generating steam and then recycling it. By repeating this process, the steam required for steam ablation is maintained. When it needs to be discharged through the steam ablation handle, the steam is discharged from the steam ablation handle, and at this time the steam does not return to the condensation device.

[0265] The steam ablation requirements may include, for example: disinfection has been completed and the current water level is higher than the maximum normal water level. They may also include, for example: the interval time from the last steam ablation (which can be understood as steam ejection) exceeds the time threshold, the current steam temperature is higher than a certain threshold, the current pressure is higher than a certain threshold, etc.

[0266] Throughout this specification, references to terms such as "one embodiment" or "an example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0267] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steam ablation device, characterized in that: It includes a steam generator, a water level detection device, an ionized water detection device, a pressure detection device, a first temperature sensor, a second temperature sensor, a condensation device, a steam ablation handle, and a controller. The steam generator can be controlled to connect to the steam ablation handle. The first end of the ionized water detection device is connected to a water source, the second end of the ionized water detection device is connected to the water inlet of the steam generator, and the feedback end of the ionized water detection device is directly or indirectly electrically connected to the controller to feed back the current ionized water state to the controller; The water level detection device is connected to the steam generator, and a feedback end of the water level detection device is directly or indirectly electrically connected to the controller to feed back the current water level of the steam generator to the controller; The pressure detection device is connected to the interior of the steam generator, and a feedback end of the pressure detection device is directly or indirectly electrically connected to the controller to feed back the current pressure of the steam generator to the controller; The first temperature sensor is provided in the steam generator, and a feedback end of the first temperature sensor is directly or indirectly electrically connected to the controller to feed back the current temperature inside the steam generator to the controller; The second temperature sensor is connected between the condensing device and the steam outlet of the steam generator, and a feedback end of the second temperature sensor is directly or indirectly electrically connected to the controller to feed back the current return steam temperature of the condensing device to the controller; When the steam ablation device is in the ablation preparation state, the steam generator is controlled to be connected to the condensation device, thereby continuously generating steam and then recycling it. By repeating this process, the steam required for steam ablation is maintained. When it needs to be discharged through the steam ablation handle, the steam is discharged from the steam ablation handle, and the steam does not return to the condensation device.

2. The steam ablation device according to claim 1, characterized in that: It also includes a water pump, a first end of the water pump is connected to the second end of the ionized water detection device, a second end of the water pump is connected to the water inlet of the steam generator, and the water pump is configured to be controllable by the controller.

3. The steam ablation device according to claim 2, characterized in that: It also includes a water pump drive circuit, the controlled end of the water pump is electrically connected to the water pump drive circuit, and the water pump drive circuit is electrically connected to the controller, The water pump driving circuit is used to respond to the water pump control signal sent by the controller and send a corresponding water pump driving signal to the water pump to drive the water pump to be turned on and off.

4. The steam ablation device according to claim 3, characterized in that: The water pump drive circuit includes a motor drive chip and a first field effect transistor, wherein the input end of the motor drive chip is electrically connected to the first electrode of the first field effect transistor, the second electrode of the first field effect transistor is grounded, and the gate of the first field effect transistor is electrically connected to the controller. The first output end of the motor driver chip is electrically connected to the controlled end of the water pump to drive the water pump to be turned on and off, and the second output end of the motor driver chip is electrically connected to the controller to feed back the water pump driving signal to the controller.

5. The steam ablation device according to claim 1, characterized in that: It also includes a heating device, which is arranged in the steam generator to heat the environment inside the steam generator. The heating device is electrically connected to the controller.

6. The steam ablation device according to claim 1, characterized in that: The system further includes an ionized water determination circuit, wherein a first end of the ionized water determination circuit is electrically connected to a feedback end of the ionized water detection device to obtain a resistance detection signal fed back by the ionized water detection device, wherein the resistance detection signal matches the ion content of the water in the ionized water detection device. The ionized water determination circuit is used to determine whether the water in the detection tube is ionized water according to the resistance detection signal, obtain the current ionized water state, and feed back the current ionized water state to the controller.

7. The steam ablation device according to claim 6, characterized in that: The ionized water judgment circuit includes a voltage comparator and a reference voltage access module. The first input end of the voltage comparator is electrically connected to the feedback end of the ionized water detection device. The reference voltage access module is electrically connected to the second input end of the voltage comparator to provide a reference voltage to the voltage comparator. The output end of the voltage comparator is electrically connected to the controller.

8. The steam ablation device according to claim 7, characterized in that: The ionized water determination circuit further includes: a voltage conversion module, which is electrically connected between the feedback end of the ionized water detection device and the first input end of the voltage comparator, and is used to convert the resistance detection signal into a voltage and then send it to the voltage comparator.

9. The steam ablation device according to claim 1, characterized in that: It also includes a water level conversion circuit, the feedback end of the water level detection device is electrically connected to the first end of the water level conversion circuit, and the second end of the water level conversion circuit is electrically connected to the controller. The water level conversion circuit obtains the water level detection signal of the water level detection device and feeds back the processed water level detection signal to the controller.

10. The steam ablation device according to claim 9, characterized in that: The water level detection device includes a cavity, and a first water level sensor and a second water level sensor disposed in the cavity. The cavity is connected to the steam generator, and the water level of the cavity matches the water level of the steam generator. The first water level feedback terminal of the first water level sensor is electrically connected to the first input terminal of the water level conversion circuit, and the second water level feedback terminal of the first water level sensor is electrically connected to the second input terminal of the water level conversion circuit; The first water level sensor is used for: When the current water level reaches a first water level, a first water level detection signal is fed back to the water level conversion circuit; when the current water level reaches a second water level, a second water level detection signal is fed back to the water level conversion circuit; The first water level feedback terminal of the second water level sensor is electrically connected to the third input terminal of the water level conversion circuit, and the second water level feedback terminal of the second water level sensor is electrically connected to the fourth input terminal of the water level conversion circuit; When the current water level reaches the third water level, the third water level detection signal is fed back to the water level conversion circuit; when the current water level reaches the fourth water level, the fourth water level detection signal is fed back to the water level conversion circuit; The first water level is the anti-dry boiling water level, the second water level is the minimum normal water level, the third water level is the maximum normal water level, and the fourth water level is the top filling water level; the anti-dry boiling water level is lower than the minimum normal water level, the minimum normal water level is lower than the maximum normal water level, and the maximum normal water level is lower than the top filling water level.

11. The steam ablation device according to claim 10, characterized in that: The water level conversion circuit includes a first inverter, a second inverter, a third inverter, a fourth inverter and a port expansion module. The input end of the first inverter is electrically connected to the first water level feedback end of the first water level sensor, and the output end of the first inverter is electrically connected to the first input end of the first side of the port expansion module; An input end of the second inverter is electrically connected to a second water level feedback end of the first water level sensor, and an output end of the second inverter is electrically connected to a second input end of the first side of the port expansion module; The input end of the third inverter is electrically connected to the first water level feedback end of the second water level sensor, and the output end of the third inverter is electrically connected to the third input end of the first side of the port expansion module; The input end of the fourth inverter is electrically connected to the second water level feedback end of the second water level sensor, and the output end of the fourth inverter is electrically connected to the fourth input end of the first side of the port expansion module; The output end of the second side of the port expansion module is electrically connected to the controller to feed back the current water level of the steam generator to the controller.

12. The steam ablation device according to claim 1, characterized in that: The device further comprises a pressure signal conversion circuit, wherein a feedback end of the pressure detection device is electrically connected to a first end of the pressure signal conversion circuit to feed back a first pressure electrical signal to the pressure signal conversion circuit, wherein a voltage of the first pressure electrical signal matches a current pressure in the steam generator; The second end of the pressure signal conversion circuit is electrically connected to the controller. The pressure conversion circuit is used to convert the first pressure electrical signal into a second pressure electrical signal that can characterize the current pressure, and feed the second pressure electrical signal back to the controller.

13. The steam ablation device according to claim 12, characterized in that: The pressure signal conversion circuit includes an analog-to-digital converter, the input end of the analog-to-digital converter is electrically connected to the output end of the pressure detection device, the output end of the analog-to-digital converter is electrically connected to the controller, the analog-to-digital converter is used to convert the first pressure electrical signal into a digital second pressure electrical signal, and the enable end of the analog-to-digital converter is electrically connected to the controller to obtain an enable signal from the controller.

14. The steam ablation device according to claim 13, characterized in that: The pressure conversion circuit further includes a buffer, an input end of the buffer is electrically connected to an output end of the analog-to-digital converter, and an output end of the buffer is electrically connected to the controller.

15. The steam ablation device according to claim 1, characterized in that: Also includes a first temperature processing circuit and a second temperature processing circuit, A feedback terminal of the first temperature sensor is electrically connected to a first terminal of the first temperature processing circuit to feed back a first temperature signal to the first temperature processing circuit, wherein a voltage of the first temperature signal matches a current internal temperature of the steam generator; The second end of the first temperature processing circuit is electrically connected to the controller, and the first temperature processing circuit is used to obtain a second temperature signal capable of representing the current temperature in the generator according to the first temperature signal, and feed the second temperature signal back to the controller; A feedback terminal of the second temperature sensor is electrically connected to a first terminal of the second temperature processing circuit to feed back a third temperature signal to the second temperature processing circuit, wherein the third temperature signal matches a current return steam temperature of the steam flowing between the steam generator and the condensing device; The second end of the second temperature processing circuit is electrically connected to the controller. The second temperature processing circuit is used to obtain a fourth temperature signal that can represent the current return steam temperature based on the third temperature signal, and feed the fourth temperature signal back to the controller.

16. The steam ablation device according to claim 15, characterized in that: The first temperature processing circuit includes a first temperature conversion module, a first input end of the first temperature conversion module is electrically connected to the second end of the first temperature sensor, the first input end of the first temperature conversion module is grounded, an output end of the first temperature conversion module is electrically connected to the controller, and a power supply end of the first temperature conversion module is electrically connected to a first power supply; The second temperature processing circuit includes a second temperature conversion module, a first input end of the second temperature conversion module is electrically connected to the second end of the second temperature sensor, a second input end of the second temperature conversion module is grounded, an output end of the second temperature conversion module is electrically connected to the controller, and a power supply end of the second temperature conversion module is electrically connected to the first power supply.

17. The steam ablation device according to claim 2, characterized in that: It also includes a plurality of controlled valve components, which are connected to the steam generator to control the flow of steam and / or water in the steam generator to the outside, and the controlled ends of the controlled valve components are electrically connected to the controller.

18. The steam ablation device according to claim 17, characterized in that: It also includes a valve drive circuit, the two ends of which are electrically connected to the controller and the controlled end of the controlled valve, respectively, for driving the controlled valve to open and close under the control of the controller.

19. The steam ablation device according to claim 18, characterized in that: The valve drive circuit includes a signal amplification module and a relay; The input end of the signal amplifying module is electrically connected to the controller, the output end of the signal amplifying module is electrically connected to the first side of the relay, and the second side of the relay is electrically connected to the controlled end of the controlled valve element.

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