Body cavity hot irrigation therapeutic machine

Abstract

A body cavity hot irrigation therapy machine comprises a driving pump, a control module, a liquid speed measurement module, a heating module and a temperature monitoring module assembly. The driving pump, the second container, the to-be-detected object and the first container are sequentially connected to form a circulation path; the temperature monitoring module assembly is used for monitoring the temperature of one or more preset sites in the circulation path and outputting a temperature feedback signal to the control module; the liquid velocity measurement module is used for monitoring the flow velocity of one or more preset sites in the circulation path and outputting a flow velocity feedback signal to the control module. When the temperature of the liquid medicine is controlled, the control module further adjusts the heating power of the heating module according to the temperature feedback signal and the flow speed feedback signal. Therefore, when the body cavity hot irrigation therapeutic machine controls the temperature of the liquid medicine, the power is not constant, but the heating power of the heating module is automatically adjusted according to actual conditions, so that the control precision of the temperature of the liquid medicine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a body cavity hot irrigation therapy machine. Background Art

[0002] The body cavity hyperthermia therapy machine is a commonly used device for perfusion therapy. During perfusion therapy, the perfused liquid is heated by setting a constant power to ensure the temperature of the liquid during perfusion.

[0003] At present, although the method of heating the perfused liquid with constant power can ensure the temperature of the liquid during perfusion to a certain extent, the temperature of the liquid is easily affected by the environment (for example: long connecting pipes, climate, region, pipe resistance, etc.), and it is impossible to accurately control the temperature of the perfusion liquid. Summary of the Invention

[0004] The main technical problem solved by the present invention is how to accurately control the temperature of the perfusion liquid when the body cavity hot perfusion treatment machine perfuses the liquid.

[0005] In one embodiment, a body cavity hot irrigation therapy machine is provided, characterized in that it includes: a driving pump for driving the flow of liquid medicine, a control module, a liquid speed measurement module, a heating module for heating the liquid medicine, and a temperature monitoring module assembly;

[0006] The input end of the driving pump is used to connect to a first container, and the output end of the driving pump is used to connect to a second container. The driving pump, the second container, the object to be tested, and the first container are connected in sequence to form a circulation path;

[0007] The temperature monitoring module assembly is used to monitor the temperature of one or more preset locations in the circulation path and output a temperature feedback signal to the control module;

[0008] The liquid velocity measurement module is used to monitor the flow velocity of one or more preset locations in the circulation path and output a flow velocity feedback signal to the control module;

[0009] The control module is provided with a first control parameter and a second control parameter, wherein the first control parameter includes at least the driving pump speed, and the second control parameter includes at least the heating power. The control module is used to output a first control signal according to the first control parameter to control the driving pump, and the control module is also used to output a second control signal according to the second control parameter to control the heating module. The control module is also used to adjust the second control parameter according to the temperature feedback signal and the flow rate feedback signal, and output a second control signal according to the adjusted second control parameter.

[0010] Optionally, the temperature of the preset site includes the temperature of the liquid medicine in the second container;

[0011] When the temperature of the medicine liquid in the second container is lower than the preset target temperature and the difference is greater than the first preset value, the control module is used to control the heating module to heat in a manner of alternating heating with the first preset heating power and the second preset heating power, wherein the heating time for each heating with the first preset heating power is the first preset time, and the heating time for each heating with the second preset heating power is the second preset time.

[0012] Optionally, the temperature of the preset site includes the temperature of the liquid medicine at the liquid inlet side of the object to be tested, and the flow rate of the preset site includes the flow rate of the liquid medicine at the liquid inlet side of the object to be tested;

[0013] When the temperature of the medicinal liquid in the second container is lower than the preset target temperature, and the difference is lower than or equal to the first preset value, the control module is used to calculate a first heating power based at least on the medicinal liquid temperature on the liquid inlet side, the medicinal liquid temperature in the second container, and the medicinal liquid flow rate on the liquid inlet side, and control the heating module to heat at the first heating power.

[0014] Optionally, the control module is configured to calculate a first heating power based at least on the temperature of the liquid medicine on the liquid inlet side, the temperature of the liquid medicine in the second container, and the flow rate of the liquid medicine on the liquid inlet side, and control the heating module to perform heating at the first heating power, including:

[0015] The control module calculates the first heating power according to the liquid temperature at the liquid inlet side, the liquid temperature in the second container, the liquid flow rate at the liquid inlet side, and the multiplication factor;

[0016] The heating rate coefficient is determined based on the temperature of the liquid in the second container and the preset target temperature.

[0017] Optionally, the first heating power = (temperature of the liquid medicine in the second container - temperature of the liquid medicine on the liquid inlet side) × specific heat capacity of the liquid medicine × flow rate of the liquid medicine on the liquid inlet side + (temperature of the liquid medicine in the second container - temperature of the liquid medicine on the liquid inlet side) × specific heat capacity of the liquid medicine × volume of the second container × rate coefficient.

[0018] Optionally, the temperature of the preset site also includes the temperature of the liquid at the liquid outlet side of the object to be measured;

[0019] When the temperature of the medicinal liquid in the second container is initially equal to or greater than the preset target temperature, the control module is used to calculate a second heating power based at least on the preset target temperature, the medicinal liquid temperature on the liquid outlet side, and the medicinal liquid flow rate on the liquid inlet side, and control the heating module to heat at the second heating power.

[0020] Optionally, the control module is configured to calculate a second heating power based on at least the preset target temperature, the liquid medicine temperature at the liquid outlet side, and the liquid medicine flow rate at the liquid inlet side, and control the heating module to perform heating at the second heating power, including:

[0021] The control module calculates the second heating power according to the preset target temperature, the liquid temperature at the liquid outlet, the liquid flow rate at the liquid inlet, and at least one of a first fine-tuning value, a second fine-tuning value, and a third fine-tuning value;

[0022] Among them, the control module calculates the first fine-tuning value based on the preset target temperature and the temperature of the liquid medicine on the liquid inlet side, calculates the second fine-tuning value based on the temperature of the liquid medicine on the liquid inlet side, and calculates the second fine-tuning value based on the preset target temperature and the temperature of the liquid medicine in the second container.

[0023] Optionally, the second heating power = (preset target temperature - liquid medicine temperature at the liquid outlet) × liquid medicine specific heat capacity × liquid medicine flow rate at the liquid inlet + first fine-tuning value + second fine-tuning value + third fine-tuning value;

[0024] The first fine-tuning value takes t1 as a detection period. When the average value of the sum of the liquid temperatures of all the liquid inlet sides within t1 is greater than the preset target temperature, the current first fine-tuning value is increased by n. When the average value is less than the preset target temperature, the current first fine-tuning value is reduced by m, where n is not 0 and m is not 0.

[0025] The second fine-tuning value is calculated by subtracting the temperature of the liquid on the liquid inlet side at the previous moment from the current liquid temperature of the liquid on the liquid inlet side by the interval t2, and dividing the difference by two to obtain a first calculation result. The first calculation result is multiplied by a first preset coefficient to obtain a second calculation result. The second calculation result is the current second fine-tuning value.

[0026] The third fine-tuning value is calculated by subtracting the current liquid temperature of the second container from the preset target temperature with an interval time of t3. When the third calculation result is greater than or equal to the second preset value, the current third fine-tuning value is the third calculation result minus the second preset value. When the third calculation result is less than or equal to the negative second preset value, the current third fine-tuning value is the third calculation result plus the second preset value. When the third calculation result is less than the second preset value and greater than the negative second preset value, the third fine-tuning value is the current third fine-tuning value multiplied by a third preset coefficient.

[0027] Optionally, when the difference between the temperature of the liquid inlet side and the preset target temperature is within a first preset range, the control module is used to control the heating module to perform heating according to a first preset heat preservation power;

[0028] When the difference between the temperature of the liquid inlet side and the preset target temperature is within a second preset range, the control module is configured to perform heating according to a second preset heat preservation power.

[0029] Optionally, the control module is further configured to adjust the first control parameter according to the flow rate feedback signal, and output a first control signal according to the adjusted first control parameter;

[0030] Wherein, the temperature monitoring module assembly includes:

[0031] A first temperature sensor, used to monitor the temperature of the liquid at the liquid inlet side;

[0032] a second temperature sensor, configured to monitor the temperature of the liquid medicine in the second container;

[0033] a third temperature sensor, for monitoring the liquid temperature at the liquid outlet side;

[0034] The liquid speed measurement module includes:

[0035] The ultrasonic liquid velocity sensor is used to monitor the flow rate of the liquid medicine on the liquid inlet side.

[0036] According to the body cavity hyperthermia treatment device of the above embodiment, when controlling the temperature of the medical solution, the control module further adjusts the second control parameter based on the temperature feedback signal and the flow rate feedback signal. The second control signal is output based on the adjusted second control parameter to control the heating module, thereby adjusting the heating power of the heating module according to actual conditions. This shows that when controlling the temperature of the medical solution, the body cavity hyperthermia treatment device does not maintain a constant power, but rather automatically adjusts the heating power of the heating module according to actual conditions, thereby improving the control accuracy of the medical solution temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is the principle block diagram of the body cavity hot irrigation therapy machine;

[0038] Figure 2 The figure is a working flow diagram of a body cavity hot irrigation therapy machine according to an embodiment.

[0039] Figure numerals: 100, touch display module; 101, control module; 1011, upper computer; 1012, lower computer; 102, drive pump; 1021, centrifugal pump; 1022, centrifugal pump head; 103, heating module; 104, second container; 105, first container; 106, liquid speed measurement module; 107, object to be measured; 108, temperature monitoring module assembly; 109, current conversion circuit. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0041] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0042] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0043] In an embodiment of the present application, when controlling the temperature of the medicinal liquid, the control module 101 further adjusts the second control parameter according to the temperature feedback signal and the flow rate feedback signal, and outputs the second control signal through the adjusted second control parameter to control the heating module 103, thereby improving the control accuracy of the medicinal liquid temperature.

[0044] Some embodiments provide a body cavity hot irrigation therapy machine, please refer to Figure 1 The body cavity hyperthermia treatment machine may include a driving pump 102 , a control module 101 , a liquid velocity measurement module 106 , a heating module 103 for heating the medical solution, and a temperature monitoring module assembly 108 .

[0045] The driving pump 102 is used to drive the flow of the liquid medicine. The input end of the driving pump 102 is connected to a first container 105, and the output end of the driving pump 102 is connected to a second container 104. The driving pump 102, the second container 104, the test object 107, and the first container 105 are sequentially connected to form a circulation path. The temperature monitoring module assembly 108 is used to monitor the temperature of one or more predetermined locations in the circulation path and output a temperature feedback signal to the control module 101. The liquid velocity measurement module 106 is used to monitor the flow velocity of one or more preset locations in the circulation path and output a flow velocity feedback signal to the control module 101; the control module 101 is provided with a first control parameter and a second control parameter, the first control parameter includes at least the rotational speed of the driving pump 102, and the second control parameter includes at least the heating power. The control module 101 is used to output a first control signal according to the first control parameter to control the driving pump 102, and the control module 101 is also used to output a second control signal according to the second control parameter to control the heating module 103. The control module 101 is also used to adjust the second control parameter according to the temperature feedback signal and the flow velocity feedback signal, and output a second control signal according to the adjusted second control parameter.

[0046] The control module 101 may include a host computer 1011 and a slave computer 1012, wherein the host computer 1011 and the slave computer 1012 are connected, and the host computer 1011 is provided with a first control parameter and a second control parameter, and the host computer is connected to the temperature monitoring module component 108, the driving pump 102, the heating module 103 and the liquid testing module. When specifically controlling the driving pump 102 and the heating module 103, the host computer 1011 sends the first control parameter and the second control parameter to the slave computer 1012, and the slave computer 1012 outputs a first control signal according to the first control parameter and outputs a second control signal according to the second control parameter; further, the slave computer 1012 receives a temperature feedback signal and a flow rate feedback signal and transmits them to the host computer 1011; the host computer 1011 further adjusts the second control parameter according to the temperature feedback signal and the flow rate feedback signal, and sends the adjusted second control parameter to the slave computer 1012, so that the slave computer 1012 outputs a second control signal according to the adjusted second control parameter. Of course, the control module 101 may also be other terminal devices, such as industrial computers, laptop computers, tablet computers and other terminal devices.

[0047] When the body cavity hyperthermia treatment device is used, first and second control parameters can be pre-set in the host computer 1011. The pre-set first and second control parameters can also be understood as initial startup parameters. That is, the drive pump 102 and the heating module 103 are started according to the first and second control parameters. After the drive pump 102 is started, the drive pump 102 provides power to drive the flow of the liquid medicine, so that the liquid medicine in the second container 104 is perfused into the subject to be tested 107. At the same time, the liquid medicine in the body of the subject to be tested 107 flows into the first container 105, and the liquid medicine in the first container 105 is replenished into the second container 104, thereby forming a circulation path for the liquid medicine to circulate. The subject to be tested 107 can be a patient to be treated.

[0048] Among them, the heating module 103 heats the liquid medicine in the circulation path, and further monitors the liquid medicine temperature at one or more preset points in the circulation path through the temperature monitoring module component 108, and transmits the temperature feedback signal to the slave computer 1012. At the same time, the liquid flow rate of one or more preset points in the circulation path is monitored through the liquid velocity measurement module 106, and the flow rate feedback signal is transmitted to the slave computer 1012. The slave computer 1012 transmits the received temperature feedback signal to the host computer 1011. When the host computer 1011 controls the heating module 103, it adjusts the second control parameter in real time according to the received temperature feedback signal and flow rate feedback signal, and sends the second control parameter to the slave computer 1012. The slave computer 1012 outputs a second control signal according to the second control parameter to control the heating module 103.

[0049] It can be seen that when controlling the temperature of the liquid medicine, the body cavity hot irrigation therapy machine will adjust the heating power of the heating module 103 according to actual conditions, rather than constant power, thereby improving the control accuracy of the liquid medicine temperature and achieving constant temperature entry of the liquid medicine into the human body.

[0050] When monitoring the temperature of the liquid medicine, three temperature monitoring points can be preset but are not limited to these. These three temperature monitoring points can include the liquid inlet side of the object to be tested 107, the liquid outlet side of the object to be tested 107, and the inside of the second container 104. That is, the temperature feedback signal can include the liquid temperature of the liquid on the liquid inlet side of the object to be tested 107, the liquid temperature of the liquid on the liquid outlet side of the object to be tested 107, and the liquid temperature of the liquid in the second container 104. Taking the object to be tested 107 as an example, the liquid inlet side of the object to be tested 107 refers to the side where the liquid medicine enters the human body cavity, and the liquid outlet side of the object to be tested 107 refers to the side where the liquid medicine flows out of the human body cavity. When monitoring the flow rate of the liquid medicine, one flow rate monitoring point can be preset but is not limited to this. This flow rate monitoring point can be, but is not limited to, the liquid inlet side of the object to be tested 107. That is, the flow rate feedback signal is the liquid flow rate of the liquid on the liquid inlet side of the object to be tested 107. When controlling the heating module 103, the heating power and / or heating time of the heating module 103 can be controlled.

[0051] In some embodiments, please refer to Figure 2 ,exist Figure 2 In the embodiment of the present invention, the target temperature refers to the preset target temperature, the tank liquid temperature refers to the temperature of the liquid in the second container 104, the body temperature refers to the temperature of the liquid on the liquid inlet side of the object to be tested 107, the heating power refers to the heating power when controlling the heating module, the tank volume refers to the volume of the second container, the flow rate refers to the flow rate of the liquid on the liquid inlet side, and the fine-tuning value 1, the fine-tuning value 2, and the fine-tuning value 3 refer to the first fine-tuning value, the second fine-tuning value, and the third fine-tuning value mentioned below, respectively. When controlling the heating module 103, if the temperature of the liquid in the second container 104 is lower than the preset target temperature and the difference is greater than the first preset value, the control module 101 is configured to control the heating module 103 to heat in an alternating manner using the first preset heating power and the second preset heating power, wherein the first preset heating power has a heating duration of the first preset duration and the second preset heating power has a heating duration of the second preset duration, and the preset target temperature, the first preset value, the first preset heating power, the second preset heating power, the first heating duration, and the second heating duration are pre-set in the host computer 1011.

[0052] In a specific embodiment, the first preset heating power is 600W, the second preset heating power is 0W, the first heating time is 3 seconds, and the second heating time is 5 seconds.

[0053] Of course, the first preset heating power and the second preset heating power can also be other, for example, the first preset heating power can also be 500W, 580W, 650W, 720W, etc., and the second preset heating power can also be 10W, 20W, 5W, 7W, 2W, etc. Those skilled in the art can determine the specific first preset heating power and the second preset heating power according to the actual application scenario. Similarly, the first heating time and the second heating time can also be other, for example, the first heating time can also be 4 seconds, 6 seconds, 5 seconds, 8 seconds, etc., and the second heating time can also be 4 seconds, 6 seconds, 7 seconds, 8 seconds, etc. Those skilled in the art can determine the specific first heating time and the second heating time according to the actual application scenario.

[0054] The preset target temperature and the first preset value can also be determined according to actual application scenarios. For example, the preset target temperature can be, but is not limited to, 40°C, 41°C, 45°C, 47°C, 47.5°C, 49.5°C, 50°C, etc., and the first preset value can be, but is not limited to, 5°C, 6°C, 5.5°C, 7°C, 8°C, etc. In a specific embodiment, the first preset value is 5°C.

[0055] Further, if Figure 2 As shown, when the temperature of the medical liquid in the second container 104 is lower than the preset target temperature, and the difference (hereinafter referred to as the first difference for ease of description) is less than or equal to the first preset value, the control module 101 adjusts the second control parameter, that is, the control module 101 adjusts the heating power of the heating module 103. When adjusting the heating power of the heating module 103 in this case, the control module 101 automatically calculates the first heating power based on at least the medical liquid temperature on the liquid inlet side, the medical liquid temperature in the second container 104, and the medical liquid flow rate on the liquid inlet side, and controls the heating module 103 to perform heating at the first heating power.

[0056] In some embodiments, when calculating the first heating power, the control module 101 calculates the first heating power based on the temperature of the liquid medicine on the liquid inlet side, the temperature of the liquid medicine in the second container 104, the flow rate of the liquid medicine on the liquid inlet side, and the multiplier coefficient; wherein the multiplier heating coefficient is calculated based on the difference between the temperature of the liquid medicine in the second container 104 and the preset target temperature.

[0057] Specifically, the first heating power = (temperature of the medicinal liquid in the second container 104 - temperature of the medicinal liquid on the liquid inlet side) × specific heat capacity of the medicinal liquid × flow rate of the medicinal liquid on the liquid inlet side + (temperature of the medicinal liquid in the second container 104 - temperature of the medicinal liquid on the liquid inlet side) × specific heat capacity of the medicinal liquid × volume of the second container 104 × multiplier coefficient; wherein, the container, specific heat capacity and multiplier coefficient of the second container 104 are preset in the host computer 1011 in advance. When determining the multiplier coefficient, the multiplier coefficient can be determined based on the preset target temperature and the temperature of the medicinal liquid in the second container 104.

[0058] In some embodiments, when the first difference is greater than or equal to the third preset value, the multiplication coefficient is the fourth preset value; when the first difference is greater than or equal to the fifth preset value and less than the third preset value, the multiplication coefficient is the sixth preset value; when the first difference is greater than or equal to the seventh preset value and less than the fifth preset value, the multiplication coefficient is the eighth preset value; when the first difference is less than the seventh preset value, the multiplication coefficient is the ninth preset value.

[0059] In a specific embodiment, the third preset value is 1.9°C, at this time, the fourth preset value may be 0.8; the fifth preset value is 1.8, at this time, the sixth preset value may be 0.7; the seventh preset value is 1.6, at this time, the eighth preset value is 0.8, and the ninth preset value is 0.3.

[0060] It should be noted that the third preset value, the fourth preset value, the fifth preset value, the sixth preset value, the seventh preset value, the eighth preset value and the ninth preset value may also have other numerical combinations. Those skilled in the art can determine the specific third preset value, the fourth preset value, the fifth preset value, the sixth preset value, the seventh preset value, the eighth preset value and the ninth preset value according to the actual application scenario, and no further restrictions are made here.

[0061] Furthermore, if Figure 2 As shown, when the temperature of the liquid medicine in the second container 104 is equal to or greater than the preset target temperature for the first time, the control module 101 will also adjust the second control parameter, that is, adjust the heating power of the heating module 103. In this case, when adjusting the power of the heating module 103, the control module 101 calculates the second heating power based on at least the preset target temperature, the liquid medicine temperature at the liquid outlet, and the liquid medicine flow rate at the liquid inlet, and controls the heating module 103 to perform heating at the second heating power.

[0062] In some embodiments, the control module 101 calculates the second heating power based on the preset target temperature, the liquid temperature at the liquid outlet, the liquid flow rate at the liquid inlet, and at least one of the first fine-tuning value, the second fine-tuning value, and the third fine-tuning value.

[0063] Among them, when determining the first fine-tuning value, the control module 101 calculates the first fine-tuning value based on the preset target temperature and the temperature of the liquid medicine on the liquid inlet side; when determining the second fine-tuning value, the control module 101 calculates the second fine-tuning value based on the temperature of the liquid medicine on the liquid inlet side; when determining the third fine-tuning value, the control module 101 calculates the second fine-tuning value based on the preset target temperature and the temperature of the liquid medicine in the second container 104.

[0064] In some embodiments, the control module 101 calculates and determines the second heating power based on the preset target temperature, the liquid temperature at the liquid outlet, the liquid flow rate at the liquid inlet, the first fine-tuning value, the second fine-tuning value, and the third fine-tuning value.

[0065] In some embodiments, the second heating power = (preset target temperature - liquid temperature at the liquid outlet) × liquid specific heat capacity × liquid flow rate at the liquid inlet + first fine-tuning value + second fine-tuning value + third fine-tuning value.

[0066] The first fine-tuning value uses a detection period of t1. If the average sum of the liquid temperatures at all liquid inlet sides within t1 is greater than the preset target temperature, the current first fine-tuning value is increased by n. If the average sum is less than the preset target temperature, the current first fine-tuning value is decreased by m, where n and m are not 0. The second fine-tuning value uses an interval of t2, and the difference between the current liquid inlet side temperature and the previous liquid inlet side temperature is divided by two to obtain a first calculation result. The first calculation result is multiplied by a first preset coefficient to obtain a second calculation result, which is the current second fine-tuning value. The third fine-tuning value uses an interval of t3, and the current liquid temperature of the second container 104 is subtracted from the preset target temperature to obtain a third calculation result. When the third calculation result is greater than or equal to the second preset value, the current third fine-tuning value is the third calculation result minus the second preset value. When the third calculation result is less than or equal to the negative second preset value, the current third fine-tuning value is the third calculation result plus the second preset value. When the third calculation result is less than the second preset value and greater than the negative second preset value, the third fine-tuning value is the current third fine-tuning value.

[0067] Specifically, t1 can be one minute, that is, within each minute, the control module 101 sums up all the received liquid temperatures on the liquid inlet side and calculates the average value. When the average value is greater than the preset target temperature, the current first fine-tuning value is increased by n. When the average value is less than the preset target temperature, the current first fine-tuning value is reduced by m. 。

[0068] The initial value of the first fine-tuning value may be, but is not limited to, 0. For example, the initial value of the first fine-tuning value may also be 1, 2, 3, 5, 7, etc.; n may be, but is not limited to, 1. For example, n may also be 2, 3, -2, -3, 4, etc.; m may be, but is not limited to, -1. For example, m may also be -2, -3, -4, 1.5, 2, etc. The first fine-tuning value may be within the range of -20W to 20W. Of course, the first fine-tuning value may also be within other ranges, such as -30W to 30W, -10W to 20W, etc. Those skilled in the art may determine the specific range of the first fine-tuning value based on actual conditions, and no further limitations are imposed herein.

[0069] t2 can be one second, that is, the current liquid temperature on the liquid inlet side is subtracted from the liquid temperature on the liquid inlet side in the previous second to obtain a second difference, the second difference is divided by two to obtain a first calculation result, and the first calculation result is multiplied by a first preset coefficient to obtain a second calculation result. The second calculation result is the current second fine-tuning value, and the second fine-tuning value has no upper or lower limit.

[0070] The initial value of the second fine-tuning value can be but is not limited to 0. For example, the initial value of the second fine-tuning value can also be 1, 2, 3, 6, 8, etc.; the first preset coefficient can be but is not limited to 100. The first preset coefficient can also be 80, 95, 110, 120, etc.

[0071] Similarly, t3 may also be one second. That is, at one-second intervals, the current preset target temperature is subtracted from the current temperature of the liquid in the second container 104 per second to obtain a third calculation result. If the third calculation result is greater than the second preset value, the current third fine-tuning value is the third calculation result minus the second preset value. When the third calculation result is less than or equal to the negative second preset value, the current third fine-tuning value is the third calculation result plus the second preset value. When the third calculation result is less than the second preset value and greater than the negative second preset value, the third fine-tuning value is the current third fine-tuning value multiplied by a third preset coefficient. The third fine-tuning value may be in the range of -30W-30W. Of course, the third fine-tuning value may also be in other ranges, for example, -20W-30W, -10W-20W, etc.

[0072] The initial value of the third fine-tuning value may be, but is not limited to, 0. For example, the initial value of the third fine-tuning value may also be 1, 2, 4, 6, 9, etc. The second preset value may be, but is not limited to, 0.2. For example, the second preset value may also be 0.3, 0.4, 0.6, 1, 1.2, etc. The third preset coefficient may be, but is not limited to, 30. For example, the third preset coefficient may also be 20, 34, 40, 49, 50, etc.

[0073] In some embodiments, as Figure 2 As shown, when the difference between the temperature of the liquid on the liquid inlet side and the preset target temperature (for the sake of ease of description, the difference is hereinafter referred to as the third difference) is within the first preset range, the control module 101 is used to control the heating module 103 to perform heating according to the first preset insulation power; when the difference between the temperature of the liquid inlet side and the preset target temperature is within the second preset range, the control module 101 is used to perform heating according to the second preset insulation power.

[0074] Specifically, the first preset range may be, but is not limited to, greater than 0.5°C and less than 0.75°C. That is, when 0.5°C < the third difference < 0.75°C, the control module 101 controls the heating module 103 to perform heating according to the first preset heat preservation power. The first preset heat preservation power may be, but is not limited to, 30W, and may also be, for example, 35W, 40W, 38W, 41W, etc. The second preset range may be, but is not limited to, greater than 0.75°C and less than 1°C. That is, when 0.75°C < the third difference < 1°C, the control module 101 controls the heating module 103 to perform heating according to the second preset heat preservation power. The second preset heat preservation power may be, but is not limited to, 15W, and may also be, for example, 25W, 18W, 17W, 14W, etc. When the third difference is neither within the first range nor within the second range, heat preservation may be performed at, but is not limited to, 0W.

[0075] When controlling the flow rate of the liquid medicine, the flow rate of the liquid medicine will be affected by the resistance of the connecting pipeline. Therefore, in order to further improve the control accuracy of the flow rate of the liquid medicine, the control module 101 is also used to adjust the first control parameter according to the flow rate feedback signal, and output the first control signal according to the adjusted first control parameter.

[0076] Specifically, after receiving the flow rate feedback signal, the lower computer 1012 transmits it to the upper computer 1011. The upper computer 1011 adjusts the first control parameter according to the flow rate feedback signal, and sends the adjusted first control parameter to the lower computer 1012, so that the lower computer 1012 outputs the first control signal according to the adjusted first control parameter to improve the control of the flow rate of the drug solution and achieve a constant flow of the drug solution in the circulation path.

[0077] In some embodiments, the temperature monitoring module assembly 108 may include a first temperature sensor, a second temperature sensor, and a third temperature sensor; wherein the first temperature sensor can be used to monitor the temperature of the medicinal liquid on the liquid inlet side of the object to be measured 107; the second temperature sensor is used to monitor the temperature of the medicinal liquid in the second container 104; and the third temperature sensor is used to monitor the temperature of the medicinal liquid on the liquid outlet side.

[0078] Specifically, a first temperature sensor can be installed in the pipeline connecting the test object 107 and the second container 104. When specifically installed, the first temperature sensor should be placed as close as possible to the liquid inlet side of the test object 107 to more accurately provide feedback on the liquid temperature at the liquid inlet side of the test object 107, further improving the accuracy of liquid temperature control. A second temperature sensor can be installed within the second container 104. When specifically installed, the second temperature sensor should be located at the geometric center of the second container 104 to more accurately provide feedback on the liquid temperature in the second container 104, similarly further improving the accuracy of liquid temperature control. A third temperature sensor can be installed in the pipeline connecting the liquid outlet side of the test object 107 and the first container 105 to monitor the liquid temperature at the liquid outlet side of the test object 107. When the first, second, and third temperature sensors are installed, the accuracy of the first, second, and third temperature sensors is 0.02°C, respectively, ensuring that the accuracy of the liquid temperature is stably controlled within ±1°C.

[0079] When monitoring the temperature of the medicinal liquid, the temperature feedback signals output by the first temperature sensor, the second temperature sensor and the third temperature sensor are current signals, which are transmitted to the lower computer 1012 through the current conversion circuit 109, and the lower computer 1012 collects the data of the medicinal liquid temperature in the circulation path in real time.

[0080] In some embodiments, the second container 104 may be an electromagnetic heating tank; the heating module 103 may be an electromagnetic heating module 103, which is connected to the lower computer 1012 via serial communication. The electromagnetic heating module 103 generates electromagnetic energy to generate an eddy current effect on the electromagnetic heating tank, thereby heating the medicinal liquid in the electromagnetic heating tank. The electromagnetic energy directly acts on the electromagnetic heating tank, and the electromagnetic heating efficiency energy consumption ratio can reach more than 90%. The lower computer 1012 can control the heating power of the electromagnetic heating module 103 in real time.

[0081] In this embodiment, the medicinal liquid can be heated and stirred in the electromagnetic heating tank according to a preset target temperature, so that the medicinal liquid is heated evenly to reach the set temperature.

[0082] Furthermore, the first container 105 may be a liquid collection bag. The driving pump 102 may include a centrifugal pump 1021 and a centrifugal pump head 1021. The centrifugal pump head 1021 is inserted into the centrifugal pump 1021 through a matching structure, so that the centrifugal pump head 1021 and the centrifugal pump 1021 bearing are coaxial. When the centrifugal pump 1021 rotates, the centrifugal pump head 1021 rotates with the centrifugal pump 1021. The centrifugal pump 1021 is connected to the lower computer 1012 via the centrifugal pump 1021 control circuit, so that the lower computer 1012 can control the speed of the centrifugal pump 1021 in real time. The input end of centrifugal pump 1021 extends into the liquid collection bag, and the output end of centrifugal pump 1021 is connected to the object to be measured 107. When centrifugal pump 1021 rotates, the liquid medicine in the centrifugal pump 1021 is pressed out of the pump head, thereby causing the liquid medicine to flow in the circulation path. At the same time, the liquid medicine in the liquid collection bag is sucked into the centrifugal pump 1021 head through the siphon effect, thereby providing a stable liquid medicine flow rate. In addition, centrifugal pump 1021 is a disposable consumable and can be replaced if damaged, thus solving the problem of poor flow rate control accuracy caused by mechanical wear.

[0083] In some embodiments, the liquid velocity measurement module 106 may include an ultrasonic liquid velocity sensor for monitoring the flow rate of the liquid medicine at the liquid inlet side. The ultrasonic liquid velocity sensor monitors the flow rate of the liquid medicine at the liquid inlet side of the test object 107 in a non-contact manner. The ultrasonic liquid velocity sensor is connected to the lower computer 1012 via a communication cable, enabling the lower computer 1012 to collect the flow rate of the liquid medicine in the circulation path in real time. When the ultrasonic liquid velocity sensor is configured, the accuracy of the ultrasonic liquid velocity sensor is 0.1%, and thus, when controlling the flow rate of the liquid medicine, it can be stably controlled within 1%.

[0084] In some embodiments, the host computer 1011 may be, but is not limited to, a Raspberry Pi, in which a hot-injection software system is downloaded, and the operation of the host computer 1011 can be completed by the hot-injection software system on the Raspberry Pi. The Raspberry Pi has a high degree of integration, a small size and a small footprint, and can be miniaturized, saving space compared to other devices (e.g., industrial computers). The slave computer 1012 may be, but is not limited to, a single-chip microcomputer as a core component. The operation of the above-mentioned slave computer 1012 can be completed by the single-chip microcomputer, wherein the single-chip microcomputer can be, but is not limited to, an STM32 series single-chip microcomputer. When the Raspberry Pi is connected to the single-chip microcomputer, the SPI communication protocol is used for data communication, so that data can be transmitted between the host computer 1011 and the slave computer 1012.

[0085] Furthermore, the lower computer 1012 is also provided with an alarm temperature to warn about the flow rate. When one or more of the liquid temperature at the liquid inlet side of the test object 107, the liquid temperature at the liquid outlet side of the test object 107, and the liquid temperature in the second container 104 collected by the lower computer 1012 exceeds the alarm temperature, the lower computer 1012 outputs an alarm signal to the upper computer 1011 to issue an alarm. When the liquid flow rate in the circulation path collected by the lower computer 1012 exceeds the alarm flow rate, the lower computer 1012 also outputs an alarm signal to the upper computer 1011 to issue an alarm.

[0086] In some embodiments, the body cavity hot irrigation therapy machine also includes a touch display module 100, which is connected to the host computer 1011. Through the touch display module 100, some parameters (such as the first control parameter, the second control parameter, the preset target temperature, the first preset value, and other preset values in the control module 101) can be set in advance in the host computer 1011. Furthermore, the touch display module 100 also displays the temperature of the liquid on the liquid inlet side, the temperature of the liquid on the liquid outlet side, and the curve relationship of the three applied in real time, and historical data curves can be queried through the touch display module 100, which is convenient for medical staff to query treatment history data.

[0087] In some embodiments, when controlling the temperature and flow rate of the drug solution, the heating power can be precisely controlled based on the big data model for any set drug solution flow rate and any set drug solution inlet temperature (which can be understood as the drug solution temperature on the liquid inlet side).

[0088] In some embodiments, when controlling the flow rate of the liquid medicine, the flow rate of the liquid medicine can be controlled within the range of 0-600 ml / min. Of course, it can also be set to other ranges according to actual application conditions, for example, it can also be 50-630 ml / min, 0-700 ml / min, 10-700 ml / min, etc.

[0089] When controlling the temperature of the liquid medicine, the liquid temperature on the liquid inlet side can be used as a reference object, and the liquid temperature on the liquid inlet side can be controlled within the range of 40-50°C. Of course, it can also be set to other ranges according to actual application conditions, for example, 40-48°C, 36-50°C, 37-50°C, 40-47°C, etc.

[0090] In this embodiment of the present application, when controlling the temperature of the medicinal liquid, the control module 101 further adjusts the second control parameter based on the temperature feedback signal and the flow rate feedback signal, and outputs a second control signal based on the adjusted second control parameter to control the heating module 103. In other words, the heating power of the heating module 103 is adjusted according to actual conditions. Thus, the body cavity hyperthermia therapy device does not maintain a constant power when controlling the medicinal liquid temperature, but rather automatically adjusts the heating power of the heating module 103 according to actual conditions, thereby improving the control accuracy of the medicinal liquid temperature.

[0091] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art can make several simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A body cavity hot irrigation therapy machine, characterized in that: include: A driving pump for driving the flow of liquid medicine, a control module, a liquid speed measurement module, a heating module for heating the liquid medicine, and a temperature monitoring module assembly; The input end of the driving pump is used to connect to a first container, and the output end of the driving pump is used to connect to a second container. The driving pump, the second container, the object to be tested, and the first container are connected in sequence to form a circulation path; The temperature monitoring module assembly is used to monitor the temperature of one or more preset locations in the circulation path and output a temperature feedback signal to the control module; The liquid velocity measurement module is used to monitor the flow velocity of one or more preset locations in the circulation path and output a flow velocity feedback signal to the control module; The control module is provided with a first control parameter and a second control parameter, wherein the first control parameter includes at least the driving pump speed, and the second control parameter includes at least the heating power. The control module is used to output a first control signal according to the first control parameter to control the driving pump, and the control module is also used to output a second control signal according to the second control parameter to control the heating module. The control module is also used to adjust the second control parameter according to the temperature feedback signal and the flow rate feedback signal, and output a second control signal according to the adjusted second control parameter.

2. The body cavity hot irrigation therapy machine according to claim 1, characterized in that: The temperature of the preset location includes the temperature of the liquid medicine in the second container; When the temperature of the medicine liquid in the second container is lower than the preset target temperature and the difference is greater than the first preset value, the control module is used to control the heating module to heat in a manner of alternating heating with the first preset heating power and the second preset heating power, wherein the heating time for each heating with the first preset heating power is the first preset time, and the heating time for each heating with the second preset heating power is the second preset time.

3. The body cavity hot irrigation therapy machine according to claim 2, characterized in that: The temperature of the preset location includes the temperature of the liquid at the liquid inlet side of the object to be tested, and the flow rate of the preset location includes the flow rate of the liquid at the liquid inlet side of the object to be tested; When the temperature of the medicinal liquid in the second container is lower than the preset target temperature, and the difference is lower than or equal to the first preset value, the control module is used to calculate a first heating power based at least on the medicinal liquid temperature on the liquid inlet side, the medicinal liquid temperature in the second container, and the medicinal liquid flow rate on the liquid inlet side, and control the heating module to heat at the first heating power.

4. The body cavity hot irrigation therapy machine according to claim 3, characterized in that: The control module is configured to calculate a first heating power based on at least the liquid medicine temperature at the liquid inlet side, the liquid medicine temperature in the second container, and the liquid medicine flow rate at the liquid inlet side, and control the heating module to perform heating at the first heating power, including: The control module calculates the first heating power according to the liquid temperature at the liquid inlet side, the liquid temperature in the second container, the liquid flow rate at the liquid inlet side, and the multiplication factor; The heating rate coefficient is determined based on the temperature of the liquid in the second container and the preset target temperature.

5. The body cavity hot irrigation therapy machine according to claim 4, characterized in that: The first heating power = (temperature of the liquid in the second container - temperature of the liquid on the liquid inlet side) × specific heat of the liquid × flow rate of the liquid on the liquid inlet side + (temperature of the liquid in the second container - temperature of the liquid on the liquid inlet side) × specific heat of the liquid × volume of the second container × rate coefficient.

6. The body cavity hot irrigation therapy machine according to claim 5, characterized in that: The temperature of the preset site also includes the liquid temperature at the liquid outlet side of the object to be tested; When the temperature of the medicinal liquid in the second container is initially equal to or greater than the preset target temperature, the control module is used to calculate a second heating power based at least on the preset target temperature, the medicinal liquid temperature on the liquid outlet side, and the medicinal liquid flow rate on the liquid inlet side, and control the heating module to heat at the second heating power.

7. The body cavity hot irrigation therapy machine according to claim 6, characterized in that: The control module is configured to calculate a second heating power based on at least the preset target temperature, the liquid medicine temperature at the liquid outlet side, and the liquid medicine flow rate at the liquid inlet side, and control the heating module to perform heating at the second heating power, including: The control module calculates the second heating power according to the preset target temperature, the liquid temperature at the liquid outlet, the liquid flow rate at the liquid inlet, and at least one of a first fine-tuning value, a second fine-tuning value, and a third fine-tuning value; Among them, the control module calculates the first fine-tuning value based on the preset target temperature and the temperature of the liquid medicine on the liquid inlet side, calculates the second fine-tuning value based on the temperature of the liquid medicine on the liquid inlet side, and calculates the second fine-tuning value based on the preset target temperature and the temperature of the liquid medicine in the second container.

8. The body cavity hot irrigation therapy machine according to claim 7, characterized in that: The second heating power = (preset target temperature - liquid temperature at the liquid outlet) × liquid specific heat × liquid flow rate at the liquid inlet + first fine-tuning value + second fine-tuning value + third fine-tuning value; The first fine-tuning value takes t1 as a detection period. When the average value of the sum of the liquid temperatures of all the liquid inlet sides within t1 is greater than the preset target temperature, the current first fine-tuning value is increased by n. When the average value is less than the preset target temperature, the current first fine-tuning value is reduced by m, where n is not 0 and m is not 0. The second fine-tuning value is calculated by subtracting the temperature of the liquid on the liquid inlet side at the previous moment from the current liquid temperature of the liquid on the liquid inlet side by the interval t2, and dividing the difference by two to obtain a first calculation result. The first calculation result is multiplied by a first preset coefficient to obtain a second calculation result. The second calculation result is the current second fine-tuning value. The third fine-tuning value is calculated by subtracting the current liquid temperature of the second container from the preset target temperature with an interval time of t3. When the third calculation result is greater than or equal to the second preset value, the current third fine-tuning value is the third calculation result minus the second preset value. When the third calculation result is less than or equal to the negative second preset value, the current third fine-tuning value is the third calculation result plus the second preset value. When the third calculation result is less than the second preset value and greater than the negative second preset value, the third fine-tuning value is the current third fine-tuning value multiplied by a third preset coefficient.

9. The body cavity hot irrigation therapy device according to any one of claims 2 to 8, characterized in that: When the difference between the temperature of the liquid inlet side and the preset target temperature is within a first preset range, the control module is used to control the heating module to perform heating according to a first preset heat preservation power; When the difference between the temperature of the liquid inlet side and the preset target temperature is within a second preset range, the control module is configured to perform heating according to a second preset heat preservation power.

10. The body cavity hot irrigation therapy machine according to any one of claims 2 to 8, characterized in that: The control module is further configured to adjust the first control parameter according to the flow rate feedback signal, and output a first control signal according to the adjusted first control parameter; Wherein, the temperature monitoring module assembly includes: A first temperature sensor, used to monitor the temperature of the liquid at the liquid inlet side; a second temperature sensor, configured to monitor the temperature of the liquid medicine in the second container; a third temperature sensor, for monitoring the liquid temperature at the liquid outlet side; The liquid speed measurement module includes: The ultrasonic liquid velocity sensor is used to monitor the flow rate of the liquid medicine on the liquid inlet side.

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