Low-temperature therapeutic apparatus

Abstract

The utility model relates to the technical field of low-temperature therapeutic instruments, in particular to a low-temperature therapeutic instrument. The low-temperature therapeutic apparatus provided by the embodiment of the utility model is provided with the low-temperature gas supply module, the shunting module, the refrigerating and unfreezing module, the switch valve module, the flow control module, the temperature detection module, the circuit control module, the user interface module and the probe module, so that the real-time temperature of the probe module can be displayed through the user interface module; the purpose of controlling the temperature of the probe module is achieved by controlling the flow control module, so that the temperature of the probe module is adjusted in time, and the accuracy of the output temperature of the low-temperature therapeutic apparatus is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic therapeutic apparatus, in particular to a cryogenic therapeutic apparatus. Background Art

[0002] Cryotherapy is the use of cryogenic media to rapidly freeze local tissues, thereby achieving the purpose of successfully removing diseased tissues. Since its invention, cryotherapy has been widely used in surgical operations, and has the advantages of small wounds and low pain for patients, becoming the main method of targeted treatment. In recent years, lung cancer, liver cancer, prostate cancer, kidney cancer, etc. have begun to use cryotherapy technology for surgical treatment, and have been highly praised by doctors and patients.

[0003] As cryogenic cryotherapy equipment becomes more and more popular, different cryogenic treatment temperatures will be different, and thus the requirements for the temperature regulation accuracy of cryogenic cryotherapy equipment are becoming higher and higher. Summary of the invention

[0004] According to the utility model, a cryogenic therapeutic apparatus is provided, comprising: a cryogenic gas supply module, a flow distribution module, a refrigeration and thawing module, a switch valve module, a flow control module, a temperature detection module, a circuit control module, a user interface module and a probe module.

[0005] Wherein: the low-temperature gas supply control module is connected to the diversion module through a pipeline, and the diversion module is used to divert the gas supplied by the low-temperature gas supply module;

[0006] The refrigeration and thawing module is connected to the diversion module and the flow control module respectively through a conduit, and the refrigeration and thawing module realizes refrigeration or thawing of the probe module by controlling the gas flowing through the refrigeration and thawing module;

[0007] The switch valve module is connected to the diversion module and the refrigeration and thawing module respectively, and the switch valve module is used to control the opening or closing of the refrigeration and thawing module;

[0008] The flow control module is connected to the probe module, and the flow control module is used to detect and control the gas flow passing through the flow control module;

[0009] The temperature detection module is connected to the probe module and is used to detect the real-time temperature of the probe module;

[0010] The circuit control module is electrically connected to the refrigeration and thawing module, the flow control module, and the temperature detection module, respectively, and is used to control the flow control module according to the temperature detected by the temperature detection module;

[0011] The user interface module is electrically connected to the circuit control module and is used to display the working status of each module.

[0012] In an exemplary embodiment, the refrigeration and thawing module includes a pressure reducing valve, a first control valve and a second control valve, wherein the pressure reducing valve is connected to the low-temperature gas supply module, the flow control module and the first control valve respectively, the first control valve is connected to the flow control module and the second control valve, and the second control valve is connected to the switch valve module;

[0013] Wherein, when the probe module is in a cooling state, the gas enters the pressure reducing valve after passing through the diversion module, enters the probe module in one way, and enters the first control valve in the other way for pre-storage; when the switch valve module is opened, the gas enters the second control valve through the diversion module, the valve stem of the second control valve retracts, and the gas rapidly expands at the probe end of the probe module to perform cooling;

[0014] In an exemplary embodiment, when the probe module is in a thawing state, the switch valve module is closed, the valve stem of the second control valve is reset, and the high-pressure gas pre-stored in the first control valve body enters the exhaust line of the probe module to the probe of the probe module, thereby achieving thawing.

[0015] In an exemplary embodiment, the flow control module includes a flow sensor, and the flow sensor is used to detect the flow of gas flowing through the flow control module.

[0016] In an exemplary embodiment, the flow control module further includes a regulating valve, and the regulating valve is used to adjust the gas flow passing through the flow control module.

[0017] In an exemplary embodiment, the temperature detection module includes a temperature sensor, and the temperature sensor is disposed on the probe module.

[0018] In an exemplary embodiment, a temperature threshold is preset in the temperature sensor, and the temperature sensor is used to generate an alarm signal and transmit it to the circuit control module when detecting that the temperature of the probe module exceeds the temperature threshold.

[0019] In an exemplary embodiment, the circuit control module includes a data acquisition module, and the data acquisition module is used to collect real-time data of the flow sensor and the temperature sensor.

[0020] In an exemplary embodiment, the user interface module includes an alarm indicator light, and the alarm indicator light is used to issue an indication according to the data collected by the data collection module.

[0021] In an exemplary embodiment, the user interface module includes a display screen and an operation button, wherein the display screen is used to display the real-time temperature of the probe module, and the operation button is used to control the gas flow through the flow control module.

[0022] The cryogenic therapy device provided in the embodiment of the utility model has a cryogenic gas supply module, a diversion module, a refrigeration and thawing module, a switch valve module, a flow control module, a temperature detection module, a circuit control module, a user interface module and a probe module, so that the real-time temperature of the probe module can be displayed through the user interface module, and the temperature of the probe module can be controlled by controlling the flow control module, thereby timely adjusting the temperature of the probe module, thereby improving the accuracy of the output temperature of the cryogenic therapy device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Further details, features and advantages of the present invention are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0024] Figure 1 An overall structural schematic diagram provided for an exemplary embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the structure of a refrigeration and thawing module provided for an exemplary embodiment of the utility model.

[0026] 1- low temperature gas supply module, 2- diversion module, 3- refrigeration and thawing module, 31- pressure reducing valve, 32- first control valve, 33- second control valve, 4- switch valve module, 5- flow control module, 6- temperature detection module, 7- circuit control module, 8- user interface module, 9- probe module. DETAILED DESCRIPTION

[0027] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0028] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0029] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] It should be noted that the modifications of “one” and “plurality” mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as “one or more”.

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Figure 1 An overall structural schematic diagram provided for an exemplary embodiment of the utility model; Figure 2 A schematic diagram of the structure of a refrigeration and thawing module provided for an exemplary embodiment of the utility model.

[0033] from Figure 1 As can be seen from the structural schematic diagram, the cryogenic treatment instrument of this embodiment includes: a cryogenic gas supply module 1, a diversion module 2, a refrigeration and thawing module 3, a switch valve module 4, a flow control module 5, a temperature detection module 6, a circuit control module 7, a user interface module 8 and a probe module 9.

[0034] The low-temperature gas supply control module 1 can provide liquid carbon dioxide to provide a stable gas source for the entire cryotherapy instrument. The air inlet end of the diverter module 2 is connected to the gas supply module 1 through a pipeline, and the air outlet end of the diverter module 2 is respectively connected to the refrigeration and thawing module 8 and the switch valve module 4. The diverter module 2 diverts the carbon dioxide provided by the gas supply module to the refrigeration and thawing module 8 and the switch valve module 4. The switch valve module 4 is used to control the opening or closing of the refrigeration and thawing module 8.

[0035] The output end of the refrigeration and thawing module 8 is connected to the flow control module 5 through a conduit, and the output end of the flow control module 5 is connected to the probe module 9. The refrigeration or thawing of the working end of the probe module is achieved by controlling the gas flowing through the refrigeration and thawing module. The flow control module 5 is used to detect and control the gas flow flowing through the flow control module, so as to adjust the temperature of the working end of the probe module. The temperature detection module 6 is connected to the working end of the probe module 9 and is used to detect the real-time temperature of the working output end of the probe module.

[0036] The above-mentioned circuit control module 7 is electrically connected to the refrigeration and thawing module 3, the flow control module 5, and the temperature detection module 6 respectively. The circuit control module 7 controls the actions of the refrigeration and thawing modules, the flow control module, and the temperature detection module 6 and records the data during the working process of each module.

[0037] The user interface module 8 is connected to the circuit control module 7 and is used to display the temperature, time, working gas pressure and the working status of each module of the working end of the cryotherapy instrument.

[0038] By using the above-mentioned cryotherapy instrument, the temperature accuracy of the probe end can be improved, and the gas flow through the flow control module 5 can be timely adjusted through the user interface module to achieve the purpose of accurately controlling the temperature of the working end.

[0039] In practical applications, the refrigeration and thawing module 3 includes a pressure reducing valve 31, a first control valve 32 and a second control valve 33, wherein the pressure reducing valve 31 is respectively connected to the low-temperature gas supply module, the flow control module 5 and the first control valve 32, the first control valve 32 is connected to the flow control module 5 and the second control valve 33, and the second control valve 33 is connected to the switch valve module 4. The refrigeration and thawing of the output end of the probe module are realized through the linkage between the pressure reducing valve 31, the first control valve 32 and the second control valve 33.

[0040] In an exemplary embodiment, the refrigeration mode of the refrigeration and thawing module 3 includes the following steps: opening the pressure reducing valve 31, and the low-temperature gas flowing in from the input end of the pressure reducing valve 31 enters the probe module 9 and the first control valve 32 respectively for pre-storage; opening the switch valve module 4, and the low-temperature gas enters the second control valve 33 through the switch valve 4, and the second control valve 33 is opened, thereby driving the exhaust circuit of the probe module to open, and the low-temperature gas entering the probe module flows back from the exhaust circuit through the end of the probe module, and the end of the probe module rapidly expands and works to cool due to the change in the size of the space, thereby achieving the purpose of cooling. Using the Joule-Thomson effect, the pressure of the high-pressure gas will decrease during the flow from the small space to the large space, absorbing the heat of the surrounding air, causing the temperature of the working end to change rapidly for cooling.

[0041] In an exemplary embodiment, the thawing mode of the refrigeration thawing module 3 includes the following steps: closing the switch valve module 4, resetting the valve stem of the second control valve 33, and allowing the high-pressure gas pre-stored in the first control valve 32 to enter the exhaust pipe of the probe module 9 to the working end of the probe module 9, thereby thawing the probe module. Through the thawing mode of the present application, the probe module can be thawed quickly to avoid maintaining a low temperature state all the time and reduce energy loss.

[0042] In an alternative embodiment, a plurality of the above-mentioned refrigeration and thawing modules may be arranged in parallel, and a plurality of probe modules may be correspondingly arranged at the ends of the plurality of refrigeration and thawing modules, so that a plurality of groups of probe modules can work simultaneously.

[0043] In the actual cryotherapy apparatus, the first control valve 32 and the switch valve module 4 can be solenoid valves, such as two-position three-way valve solenoid valves. In the actual operation of the above-mentioned low-temperature cryotherapy apparatus, the output refrigeration temperature of the working end probe module 9 can reach -75°C, and refrigeration and thawing can be completed within 5 seconds, that is, the refrigeration temperature is low, the refrigeration and thawing time is short, and the working efficiency is high. It has stable freezing capacity, high accuracy and controllability, and can cool and recover quickly.

[0044] In an exemplary embodiment, the flow control module 5 includes a flow sensor, which is used to detect the gas flow passing through the flow control module 5. The flow sensor is arranged between the refrigeration and thawing module 3 and the probe module 9. In actual work, the flow sensor can use a V-cone flowmeter to measure liquid carbon dioxide.

[0045] In an exemplary embodiment, the flow control module 5 further includes a regulating valve, which is used to regulate the gas flow through the flow control module 5. The regulating valve is disposed between the flow sensor and the probe module, and the signal feedback from the flow meter is the signal after the regulating valve is regulated to avoid measurement errors.

[0046] In an exemplary embodiment, the temperature detection module 6 includes a temperature sensor, which is disposed on the probe module 9. The temperature sensor is disposed at the working end of the probe module, and the temperature collected by the temperature sensor is consistent with the actual working temperature, and the temperature is displayed in the user section module.

[0047] In an exemplary embodiment, a temperature threshold is preset in the temperature sensor. The temperature sensor is used to generate an alarm signal and transmit it to the circuit control module 7 when it detects that the temperature of the working end of the probe module 9 exceeds the temperature threshold. The circuit control module displays the alarm signal on the user interface module.

[0048] In an exemplary embodiment, the circuit control module 7 includes a data acquisition module, which is used to collect real-time data from the flow sensor and the temperature sensor. The data acquisition module is electrically connected to the flow sensor and the temperature sensor through the control circuit, and records data such as temperature, pressure, and flow in real time, which facilitates subsequent analysis of the differences in treatment effects achieved at different temperatures and optimizes the use parameters of the treatment instrument.

[0049] In an exemplary embodiment, the user interface module 8 includes an alarm indicator light, which is used to issue an indication based on the data collected by the data collection module. The setting of the alarm indicator light can promptly remind the staff that when the temperature of the probe exceeds the temperature threshold, the operation needs to be stopped or shut down to avoid irreversible consequences caused by abnormal temperature for a long time.

[0050] In an exemplary embodiment, the user interface module 8 includes a display screen and operation buttons, wherein the display screen is used to display the real-time temperature of the probe module 9, and the operation buttons are used to control the gas flow through the flow control module 5. In addition, the gas pressure, the duration at a certain temperature, and a warning indicator light may also be displayed on the user interface module 8. In some alternative embodiments, the display screen may be made of a full touch screen material, and the staff may adjust the temperature and pressure through the touch screen.

[0051] In actual applications, the low-temperature cryotherapy instrument provided in the embodiment of the utility model, by adding a temperature sensor at the working end of the probe module, cooperates with the flow control module between the probe module and the refrigeration and thawing module, to timely regulate the flow of low-temperature gas entering the probe module, thereby achieving the purpose of adjusting the temperature of the working end of the probe module and improving the control accuracy of the working temperature.

[0052] The above description is only some embodiments of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0053] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cryotherapy apparatus, characterized in that: include: Cryogenic gas supply module, diversion module, refrigeration and thawing module, switch valve module, flow control module, temperature detection module, circuit control module, user interface module and probe module, Wherein: the low-temperature gas supply control module is connected to the diversion module through a pipeline, and the diversion module is used to divert the gas supplied by the low-temperature gas supply module; The refrigeration and thawing module is connected to the diversion module and the flow control module respectively through a conduit, and the refrigeration and thawing module realizes refrigeration or thawing of the probe module by controlling the gas flowing through the refrigeration and thawing module; The switch valve module is connected to the diversion module and the refrigeration and thawing module respectively, and the switch valve module is used to control the opening or closing of the refrigeration and thawing module; The flow control module is connected to the probe module, and the flow control module is used to detect and control the gas flow passing through the flow control module; The temperature detection module is connected to the probe module and is used to detect the real-time temperature of the probe module; The circuit control module is electrically connected to the refrigeration and thawing module, the flow control module, and the temperature detection module, respectively, and is used to control the flow control module according to the temperature detected by the temperature detection module; The user interface module is electrically connected to the circuit control module and is used to display the working status of each module.

2. The cryotherapy apparatus according to claim 1, characterized in that: The refrigeration and thawing module includes a pressure reducing valve, a first control valve and a second control valve, wherein the pressure reducing valve is connected to the low-temperature gas supply module, the flow control module and the first control valve respectively, the first control valve is connected to the flow control module and the second control valve, and the second control valve is connected to the switch valve module; Among them, when the probe module is in a cooling state, the gas enters the pressure reducing valve after passing through the diversion module, one way enters the probe module, and the other way enters the first control valve for pre-storage; the switch valve module is in an open state, the gas enters the second control valve through the diversion module, the valve stem of the second control valve retracts, and the gas rapidly expands at the probe end of the probe module to perform cooling.

3. The cryotherapy apparatus according to claim 2, characterized in that: When the probe module is in a thawing state, the switch valve module is in a closed state, the valve stem of the second control valve is reset, and the high-pressure gas pre-stored in the first control valve body enters the exhaust pipe of the probe module to the probe of the probe module, thereby achieving thawing.

4. The cryotherapy apparatus according to claim 3, characterized in that: The flow control module includes a flow sensor, and the flow sensor is used to detect the gas flow passing through the flow control module.

5. The cryotherapy apparatus according to claim 4, characterized in that: The flow control module further includes a regulating valve, and the regulating valve is used to regulate the gas flow passing through the flow control module.

6. The cryotherapy apparatus according to claim 4, characterized in that: The temperature detection module includes a temperature sensor, and the temperature sensor is arranged on the probe module.

7. The cryotherapy apparatus according to claim 6, characterized in that: A temperature threshold is preset in the temperature sensor, and the temperature sensor is used to generate an alarm signal and transmit it to the circuit control module when detecting that the temperature of the probe module exceeds the temperature threshold.

8. The cryotherapy apparatus according to claim 6, characterized in that: The circuit control module includes a data acquisition module, and the data acquisition module is used to collect real-time data of the flow sensor and the temperature sensor.

9. The cryotherapy apparatus according to claim 8, characterized in that: The user interface module includes an alarm indicator light, and the alarm indicator light is used to issue an indication according to the data collected by the data collection module.

10. The cryotherapy apparatus according to claim 8, characterized in that: The user interface module includes a display screen and an operation button, wherein the display screen is used to display the real-time temperature of the probe module, and the operation button is used to control the gas flow passing through the flow control module.

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