WO2023160564A1

WO2023160564A1 - Temperature control method and apparatus for catheter pump, control device, and storage medium

Info

Publication number: WO2023160564A1
Application number: PCT/CN2023/077544
Authority: WO
Inventors: 郭婧; 高飞; 易博; 罗七一; 常兆华
Original assignee: 上海微创心力医疗科技有限公司
Priority date: 2022-02-23
Filing date: 2023-02-22
Publication date: 2023-08-31
Also published as: CN116672596A

Abstract

A temperature control method and apparatus for a catheter pump (1010), a control device (1030), a catheter pump system, and a storage medium. The method comprises: acquiring a first temperature when the catheter pump (1010) is not operating (102), wherein the first temperature is a temperature of the environment where the catheter pump (1010) is located; acquiring a second temperature when the catheter pump (1010) is operating, and determining whether the catheter pump (1010) is in a temperature abnormality state according to a first target temperature difference (104), wherein the second temperature is a temperature of the catheter pump (1010), and the first target temperature difference is the difference between the first temperature and the second temperature; activating a temperature protection control of the catheter pump (1010) to restore a temperature normality state of the catheter pump (1010) when the catheter pump (1010) is in the temperature abnormality state (106). The method can avoid the rise of the temperature of the catheter pump (1010) due to accidental factors, improve the safety and self-adaptability of the catheter pump (1010), and ensure the operational efficiency of the catheter pump (1010).

Description

Temperature control method, device, control equipment and storage medium for catheter pump

related application

This application claims the priority of the Chinese patent application filed on February 23, 2022, with application number 202210170101.8, entitled "Temperature Control Method, Device, Control Equipment and Storage Medium for Catheter Pump", which is hereby incorporated in its entirety as refer to.

technical field

The present application relates to the technical field of medical devices, in particular to a temperature control method and device for a catheter pump, a control device, a catheter pump system and a storage medium.

Background technique

At present, the main strategy of percutaneous interventional therapy for heart disease is to implant a catheter pump in the left ventricle to assist the heart to pump blood. Catheter pumps mainly include inlet solenoids, paddles, outlet pipes, and motors. The controller controls the operation of the catheter pump. Wherein, the inlet window of the catheter pump should be located in the left ventricle, and the outlet window should be located in the aorta. By pumping the blood in the left ventricle into the aorta, the heart can be assisted to pump blood. However, the traditional method cannot avoid the increase of the temperature of the pump body of the catheter pump due to accidental factors, resulting in low working efficiency of the catheter pump and even damage to the heart and blood vessels.

Contents of the invention

Based on this, the present application provides a catheter pump temperature control method, device, control device, catheter pump system and storage medium capable of avoiding an increase in the temperature of the catheter pump body caused by accidental factors.

In one embodiment, a temperature control method of a catheter pump is provided, the method comprising:

When the catheter pump is not running, a first temperature value is obtained; the first temperature value is the temperature value of the environment where the catheter pump is located;

When the catheter pump is in the running state, obtain the second temperature value, and judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference; wherein, the second temperature value is the temperature value of the pump body of the catheter pump; the first The target temperature difference refers to the difference between the first temperature value and the second temperature value;

When the catheter pump is in an abnormal temperature state, the temperature protection control is activated on the catheter pump so that the catheter pump is in a normal temperature state.

In one embodiment, when the catheter pump is running, the step of obtaining the second temperature value of the environment where the catheter pump is located, and judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes: When the catheter pump is in the running state, obtain the current operating gear of the catheter pump and the second temperature value of the catheter pump in the current operating gear; according to the first target temperature difference and the gear corresponding to the current operation The first temperature difference threshold is used to determine whether the catheter pump is in an abnormal temperature state.

In one embodiment, when the catheter pump is in an abnormal temperature state, the step of starting temperature protection control for the catheter pump includes: when the catheter pump is in an abnormal temperature state and the current operating gear is not the lowest gear Next, lower the gear of the catheter pump to run lower than the current gear; obtain the second temperature value of the lowered gear of the catheter pump, and calculate the When the first temperature difference threshold determines that the catheter pump is in an abnormal temperature state, the gear is reduced again until it is determined that the catheter pump returns to a normal temperature state or the lowered gear is the lowest gear.

In one of the embodiments, before the step of lowering the gear of the catheter pump to the operation lower than the current gear, it also includes recording that the gear currently running is an abnormal temperature gear; The step of starting the temperature protection control of the pump also includes: when it is determined that the temperature of the catheter pump returns to a normal state, reducing the catheter pump from The last gear is adjusted to the abnormal temperature gear to run, and it is judged whether the catheter pump is in an abnormal temperature state in the abnormal temperature gear.

In one of the embodiments, when the catheter pump is adjusted from the reduced gear to the abnormal temperature gear, the number of adjustments is recorded; when the catheter pump is in an abnormal temperature state, the temperature protection control is activated for the catheter pump The step further includes: when it is determined that the temperature of the catheter pump has returned to a normal state and the number of adjustments is less than or equal to a threshold value of the number of gear adjustment times, controlling the catheter pump to keep running at an abnormal temperature gear.

In one of the embodiments, when the catheter pump is adjusted from the reduced gear to the abnormal temperature gear, the number of adjustments is recorded; when the catheter pump is in an abnormal temperature state, the temperature protection control is activated for the catheter pump The step further includes: when it is determined that the catheter pump has returned to a normal temperature state and the number of adjustments is greater than the threshold value of the number of gear adjustment times, generating a first alarm signal; the first alarm signal is used to prompt the catheter pump to have a temperature in the abnormal temperature gear abnormal.

In one of the embodiments, before the step of lowering the gear of the catheter pump to operate lower than the current gear, it also includes recording that the gear currently operated is an abnormal temperature gear; when the catheter pump is in an abnormal temperature state, The step of starting temperature protection control on the catheter pump also includes: obtaining the first temperature value of the environment where the catheter pump is located when the lowered gear is the lowest gear; restarting the catheter pump at the abnormal temperature gear, Obtain the second temperature value, and judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference; if it is judged that the catheter pump is in a normal temperature state, generate a second alarm signal, and the second alarm signal is used to prompt the catheter pump The environment is abnormal.

In one of the embodiments, the temperature control method further includes: in the case of restarting the catheter pump, recording the number of restarts of the catheter pump; when the number of restarts is less than or equal to the threshold value of the number of restarts, entering when the temperature of the catheter pump is in an abnormal state and When the currently operating gear is not the lowest gear, the step of reducing the gear of the catheter pump to run lower than the current gear.

In one embodiment, the temperature control method further includes: when the number of restarts is greater than a threshold of restart times, generating a third alarm signal, where the third alarm signal is used to prompt that the catheter pump fails to restart.

In one embodiment, the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes: judging that the catheter pump is in an abnormal temperature state when the first target temperature difference is greater than a first temperature difference threshold.

In one embodiment, the first temperature difference threshold is a first preset threshold or a first preset multiple of a preset safe temperature difference.

In one of the embodiments, the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference further includes: when the first target temperature difference is less than or equal to the first temperature difference threshold, judging that the catheter pump is in temperature normal status.

In one embodiment, the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes: when the first target ratio is greater than a first ratio threshold, judging that the catheter pump is in an abnormal temperature state; wherein, the first A target ratio refers to the quotient of the second target temperature difference and the preset safe temperature difference; the second target temperature difference refers to the difference between the first target temperature difference and the preset safe temperature difference.

In one embodiment, a temperature control device for a catheter pump is provided, the device comprising:

The data acquisition module is used to obtain the first temperature value when the catheter pump is not running; the first temperature value is the temperature of the environment where the catheter pump is located; the data acquisition module is also used to obtain the first temperature value when the catheter pump is in the running state Next, obtain the second temperature value; wherein, the second temperature value is the temperature of the pump body of the catheter pump;

The temperature judging module is used to judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference. Wherein, the first target temperature difference refers to the difference between the first temperature value and the second temperature value;

The temperature protection module is used to start temperature protection control on the catheter pump when the temperature of the catheter pump is abnormal, so that the temperature of the catheter pump is in a normal state.

In one embodiment, a control device is provided. The control device includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps of any method in the above method embodiments are implemented.

In one embodiment, a catheter pump system is provided. The catheter pump system includes a catheter pump, a temperature sensor, and any control device in the above control device embodiment; the catheter pump is electrically connected to the control device; the temperature sensor is arranged on the motor of the catheter pump Inner or catheter pump casing, and electrically connected to the control equipment.

In one of the embodiments, the catheter pump system further includes a display screen; the display screen is electrically connected to the control device.

In one embodiment, a computer-readable storage medium is provided, and the above-mentioned computer-readable storage medium stores There is a computer program, and when the computer program is executed by a processor, the steps of any method in the foregoing method embodiments are implemented.

The temperature control method, device, control equipment, catheter pump system and storage medium of the above-mentioned catheter pump are implanted into the human body through the catheter pump, and the temperature of the environment where the catheter pump is located is obtained when the catheter pump is not in operation, that is, the first A temperature value; when the catheter pump is in operation, obtain the temperature of the pump body of the catheter pump, that is, the second temperature value; according to the difference between the first temperature value and the second temperature value, that is, the first target temperature difference can be automatically Judging whether the catheter pump is in an abnormal state of temperature. For example, during the implantation process, the pump body is accidentally damaged or the inlet is blocked, causing the pump body to work abnormally, which will increase the temperature of the pump body. Therefore, the catheter pump can be judged by the degree of temperature rise. Whether it is abnormal; when the temperature of the catheter pump is abnormal, start the temperature protection control for the catheter pump so that the temperature of the catheter pump is in a normal state. Thereby, the increase of the temperature of the pump body of the catheter pump caused by accidental factors can be avoided, the use safety and adaptability of the catheter pump are improved, and the working efficiency of the catheter pump is ensured.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the traditional technology. Obviously, the accompanying drawings in the following description are only the present invention For the embodiments of the application, those skilled in the art can also obtain other drawings based on the disclosed drawings without creative effort.

FIG. 1 is a schematic flowchart of a first flow chart of a temperature control method for a catheter pump in an embodiment of the present application.

FIG. 2 is a second schematic flowchart of a temperature control method for a catheter pump in an embodiment of the present application.

FIG. 3 is a third schematic flowchart of a temperature control method for a catheter pump in an embodiment of the present application.

FIG. 4 is a schematic flowchart of a fourth method for temperature control of a catheter pump in an embodiment of the present application.

FIG. 5 is a schematic flowchart of a fifth flow chart of a temperature control method for a catheter pump in an embodiment of the present application.

FIG. 6 is a schematic flowchart of a sixth flow chart of a temperature control method for a catheter pump in an embodiment of the present application.

FIG. 7 is a schematic diagram of a seventh flowchart of a temperature control method for a catheter pump in an embodiment of the present application.

Fig. 8 is a structural block diagram of a device for judging the placement position of a catheter pump in an embodiment of the present application.

FIG. 9 is an internal structure diagram of a control device in an embodiment of the present application.

Fig. 10 is a schematic diagram of the first structure of the catheter pump system in an embodiment of the present application.

Fig. 11 is a schematic diagram of the second structure of the catheter pump system in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance could be termed a second resistance, and, similarly, a second resistance could be termed a first resistance, without departing from the scope of the present application. Both the first resistance and the second resistance are resistances, but they are not the same resistance.

It can be understood that "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have the transmission of electrical signals or data between each other.

When used herein, the singular forms "a", "an" and "the/the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more The possibility of other features, integers, steps, operations, components, parts or combinations thereof.

The embodiment of the present application provides a temperature control method, device, control equipment, catheter pump system and storage medium of a catheter pump, which can automatically determine whether the catheter pump is in an abnormal temperature state, such as inadvertently occurring a pump body during implantation. Damage or inlet blockage will cause abnormal operation of the pump body and increase the temperature of the pump body. Therefore, it can be judged whether the catheter pump is abnormal by the degree of temperature rise, and the temperature rise of the catheter pump body caused by accidental factors can be avoided, that is, The use safety and adaptability of the catheter pump are improved, and the working efficiency of the catheter pump is guaranteed.

In one embodiment, as shown in FIG. 1 , a method for temperature control of a catheter pump is provided, and this embodiment is described by taking the method applied to a control device as an example. In this embodiment, the method includes step 102 to step 104 .

Step 102, when the catheter pump is not running, acquire a first temperature value.

Among them, the catheter pump mainly includes inlet solenoid, paddle, outlet pipe and motor. The controller can control the operation of the catheter pump to assist the heart in pumping blood. The exact placement position of the catheter pump is: the inlet window of the catheter pump should be located in the left ventricle, and the outlet window should be located in the aorta, so as to pump the blood in the left ventricle into the aorta. The environment in which the catheter pump is located includes the corresponding environment implanted in the human body and the test simulation environment. Wherein, the first temperature value refers to the temperature value of the environment where the catheter pump is located. When the catheter pump is not running, the control device can know the temperature of the pump body when the catheter pump is not running, that is, the basis of the human body, by obtaining the temperature of the environment where the catheter pump is located, that is, the first temperature value. temperature value.

In a specific example, when the catheter pump is not in operation, the control device can acquire the first temperature value of the environment where the catheter pump is located through a temperature sensor disposed in the motor of the catheter pump or on the casing of the catheter pump. The above is only a specific example, which can be flexibly set according to requirements in actual applications, and is not limited here.

Step 104, when the catheter pump is in the running state, acquire the second temperature value, and judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference.

In this embodiment, the second temperature value is the temperature value of the pump body of the catheter pump; the first target temperature difference refers to the difference between the first temperature value and the second temperature value. When the catheter pump is in the running state, the control device can obtain the temperature value of the pump body corresponding to the operation of the catheter pump in the human body by acquiring the second temperature value. The temperature value of the pump body is generally obtained by collecting the motor temperature of the catheter pump, and the first target temperature difference is calculated according to the obtained second temperature value and the first temperature value, so as to judge whether the catheter pump is in the Abnormal temperature state.

In a specific example, when the catheter pump is in an operating state, the control device may obtain the second temperature value through a temperature sensor disposed in a motor of the catheter pump or on a casing of the catheter pump. The above are only specific examples, which can be flexibly set according to requirements in actual applications, and are not limited here.

In some embodiments, as shown in FIG. 2 , the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes steps 201 to 202 .

Step 201, if the first target temperature difference is greater than the first temperature difference threshold, it is determined that the catheter pump is in an abnormal temperature state.

Step 202, if the first target temperature difference is less than or equal to the first temperature difference threshold, it is determined that the catheter pump is in a normal temperature state.

In this embodiment, the control device may determine that the catheter pump is in an abnormal temperature state when the first target temperature difference is greater than the first temperature difference threshold; when the first target temperature difference is less than or equal to the first temperature difference threshold, Then it is determined that the catheter pump is in a normal temperature state.

In this embodiment, through the above steps, it can be accurately judged whether the catheter pump is in an abnormal temperature state, so as to avoid the temperature rise of the catheter pump caused by the damage of the catheter pump or the blockage of the inlet, so as to realize the rapid judgment of the abnormality of the catheter pump, which can give Doctor information prompts to judge whether to replace the pump body.

In some embodiments, the first temperature difference threshold is a first preset threshold or a first preset multiple of a preset safe temperature difference.

In a specific example, the preset safe temperature difference is 0.7° C., the first preset threshold is 2.10° C. and the first preset multiple is 3 based on laboratory measurement data of the catheter pump. That is to say, in the temperature control process of the catheter pump, the first preset threshold value 2.10° C. obtained through measurement data can be directly used as the first temperature difference threshold value. At the same time, the first temperature difference threshold can also be calculated by using the preset safe temperature difference and the first preset multiple, and the second temperature difference threshold can be calculated by using the preset safe temperature difference and the second preset multiple, and by The calculated first temperature difference threshold is 0.7°C 3 times that is 2.10°C. It can be understood that at this time, if the first target temperature difference is greater than 2.10° C., it is determined that the catheter pump is in an abnormal temperature state. At the same time, if the first target temperature difference is less than or equal to 2.10° C., it is determined that the catheter pump is in a normal temperature state. The above are only specific examples, which can be flexibly set according to requirements in actual applications, and are not limited here.

In a specific example, the preset safe temperature difference of the catheter pump operating at different gears can be established according to the measurement data of the catheter pump in the laboratory. The above measurement data include the motor current, motor speed, flow rate of the pump body, outlet pressure of the pump body, inlet pressure of the pump body and temperature of the casing of the pump body, etc. of the catheter pump. The preset safe temperature difference refers to the difference between the temperature value when the catheter pump is running in the corresponding gear and is in the standard operating state and the temperature value when the catheter pump is in the corresponding gear and is not running; When the first target temperature difference is equivalent to the preset safe temperature difference, the catheter pump is in a standard operating state, and the output of the catheter pump is stable at this time, and the performance can meet design expectations. In addition, the preset safety temperature difference corresponding to different gears can be stored in the control device in the form of a data table for real-time calling during use. The above are only specific examples. In actual applications, they can be flexibly set according to requirements. Here No restrictions are imposed.

In a specific example, when the catheter pump is running, the preset safe temperature difference corresponding to each gear is different; and in different states, the specific temperature value of the temperature difference rise of each gear is also different, but the experiment For the test, if the catheter pump is operated in the fourth gear, the preset safe temperature difference is about 0.7°C and not higher than 0.91°C according to the measurement data. When the temperature of the catheter pump body is abnormal, the temperature difference is higher than 2.10°C . When the catheter pump is running in the fifth gear, the preset safe temperature difference is about 0.8°C but not higher than 1.04°C. When the temperature of the catheter pump body is abnormal, the temperature difference is higher than 2.40°C. All of the above values can be stored in the control device. That is, corresponding to when the catheter pump is running in the fourth gear, the above-mentioned first temperature difference threshold is 2.10°C; or corresponding to when the catheter pump is running in the fifth gear, the above-mentioned first temperature difference threshold is 2.40°C. That is to say, in use, by reading and calling the above data according to the operating gear for comparison, the judgment of whether the pump body of the catheter pump is in an abnormal state of temperature can be realized. The above are only specific examples, which can be flexibly set according to requirements in actual applications, and are not limited here.

In some embodiments, the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes: determining that the catheter pump is in an abnormal temperature state if the first target ratio is greater than a first ratio threshold.

Specifically, the first target ratio refers to the quotient of the second target temperature difference and the preset safe temperature difference; the second target temperature difference refers to the difference between the first target temperature difference and the preset safe temperature difference. The control device may pre-store the preset safe temperature difference and the first ratio threshold. When the control device obtains the first temperature value and the second temperature value, it can obtain the first target temperature difference by calculating the difference between the first temperature value and the second temperature value; Set the difference of the safety temperature difference to obtain the second target temperature difference; and calculate the first target ratio by calculating the quotient of the second target temperature difference and the preset safety temperature difference; when the first target ratio is greater than the first ratio threshold And when it is less than the second ratio threshold, it is determined that the catheter pump is in an abnormal temperature state. On the contrary, if the first target ratio is less than or equal to the first ratio threshold, it is determined that the catheter pump is in a normal temperature state.

In this embodiment, through the above steps, it can be accurately judged whether the catheter pump is in an abnormal temperature state, so as to avoid the temperature rise of the catheter pump caused by the damage of the catheter pump or the blockage of the inlet.

In a specific example, when the catheter pump is in the running state, the preset safe temperature difference corresponding to each gear is different; and in different states, the specific temperature value of the temperature difference rise of each gear is also different. However, according to the experimental test, the percentage of the specific temperature increase of the temperature difference of each gear and the predicted safe temperature difference of the gear is basically fixed, so the percentage can also be used as the judgment standard. In the above embodiment, the first ratio threshold is specifically a percentage value.

In a specific example, taking the catheter pump running in the fourth gear as an example, when the temperature of the pump body of the catheter pump is abnormal, the temperature difference is higher than 2.10°C, which is 0.7°C from the preset safe temperature difference of the fourth gear. °C comparison, 200% higher than the preset safe temperature difference, that is The specific judgment steps of this specific example are as follows: when the first temperature value and the second temperature value are obtained, the first target temperature difference is obtained by calculating the difference between the first temperature value and the second temperature value; The second target temperature difference is obtained by calculating the difference between the temperature difference and the preset safe temperature difference of 0.7°C; the first target ratio is obtained by calculating the quotient of the second target temperature difference and the preset safe temperature difference of 0.7°C; When the target ratio is greater than the first ratio threshold of 200%, it is determined that the catheter pump is in an abnormal temperature state.

It can be understood that the first ratio threshold, the second ratio threshold and the third ratio threshold can be measured by laboratory The data is pre-acquired and can be pre-stored in the control device. That is to say, when the first target ratio is greater than the first ratio threshold, ie, 200%, the control device sends out an abnormal temperature alarm and activates the temperature protection control function. For example, during the implantation process, the pump body is accidentally damaged or the inlet is blocked, resulting in abnormal operation of the pump body, which will make the design temperature rise of the pump body unable to be effectively guaranteed. The above are only specific examples, which can be flexibly set according to requirements in actual applications, and are not limited here.

Step 106, when the temperature of the catheter pump is abnormal, start temperature protection control on the catheter pump so that the temperature of the catheter pump is in a normal state.

Wherein, when the catheter pump is in an abnormal temperature state, the control device can initiate temperature protection control on the catheter pump, so that the catheter pump is in a normal temperature state.

Specifically, the catheter pump is implanted into the human body, and when the catheter pump is not in operation, the temperature of the environment where the catheter pump is located, that is, the first temperature value is obtained; The temperature value of the pump body, that is, the second temperature value; according to the difference between the first temperature value and the second temperature value, that is, the first target temperature difference, it is automatically judged whether the catheter pump is in an abnormal temperature state; when the catheter pump is in an abnormal temperature state Next, activate the temperature protection control for the catheter pump to keep the catheter pump in a normal temperature state. Thereby, the increase of the temperature of the pump body of the catheter pump caused by accidental factors can be avoided, the use safety and adaptability of the catheter pump are improved, and the working efficiency of the catheter pump is ensured.

In some embodiments, as shown in FIG. 3 , when the catheter pump is in operation, the step of obtaining the second temperature value of the catheter pump, and judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference includes: Step 301 and Step 302.

Step 301, when the catheter pump is in the running state, acquire the current operating gear of the catheter pump and the second temperature value of the catheter pump in the current operating gear.

Step 302, according to the first target temperature difference and the first temperature difference threshold corresponding to the gear currently running, it is judged whether the catheter pump is in an abnormal temperature state.

Since the catheter pump operates in different gears, the heat dissipation environment of the catheter pump will be different due to different blood flow rates. Therefore, when the catheter pump is in the running state, the control device can obtain the operating gear of the catheter pump and the second temperature value of the catheter pump in the running gear; according to the first target temperature difference and the gear corresponding to the running The first temperature difference threshold can automatically judge whether the catheter pump is in an abnormal temperature state, which improves the accuracy of the temperature control of the catheter pump.

In some embodiments, as shown in FIG. 4 , when the catheter pump is in an abnormal temperature state, the step of activating temperature protection control on the catheter pump includes step 401 and step 402 .

Step 401, in the case that the catheter pump is in an abnormal temperature state and the current operating gear is not the lowest gear, reduce the catheter pump to a lower gear than the current gear.

Specifically, the lowest gear refers to the lowest value of each gear of the catheter pump. In a specific example, the lowest gear may be, but not limited to, 0. Gear 0 means that the motor stops. The above are only specific examples, which can be flexibly set according to requirements in actual applications, and are not limited here.

The control device can judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference and the first temperature difference threshold corresponding to the operating gear; if the catheter pump is in an abnormal temperature state and is currently running When the gear is not the lowest gear, the catheter pump is lowered to run at a lower gear, that is, lowered to a lower gear than the current gear. It can be understood that the lower gear operation may specifically include lower first gear operation, lower second gear operation or lower third gear operation, which can be flexibly set according to requirements in practical applications, and no limitation is imposed here.

Step 402: Obtain the second temperature value of the catheter pump after the downshift, and when it is determined that the catheter pump is in an abnormal temperature state according to the first target temperature difference and the first temperature difference threshold corresponding to the downshift, Reduce the gear again until it is determined that the catheter pump returns to a normal temperature state or the reduced gear is the lowest gear.

Wherein, the control device obtains the second temperature value after the last lowered gear operation, that is, obtains the current gear of the catheter pump and the current pump body temperature value in time after the last lowered gear operation; by calculating the first temperature value The difference between the current second temperature value and the current first target temperature difference; determine whether the catheter pump is in a temperature abnormal state by the above-mentioned current first target temperature difference and the first temperature difference threshold corresponding to the current gear ; In the case of judging that the catheter pump is in an abnormal temperature state, the control device makes the catheter pump run at a lower gear again until the control device judges that the catheter pump returns to a normal temperature state or the lowered gear is the lowest gear.

In this embodiment, through the above steps, when the catheter pump is in an abnormal temperature state and the operating gear is not the lowest gear, the gear of the catheter pump can be automatically lowered so that the catheter pump can operate under normal temperature or Directly reducing to the lowest gear operation stops the motor of the catheter pump, which improves the convenience of the temperature control method of the catheter pump.

In one of the embodiments, as shown in Figure 5, before the step of lowering the gear of the catheter pump to the operation lower than the current gear, it also includes recording that the running gear is an abnormal temperature gear; when the catheter pump is in an abnormal temperature state In some cases, the step of starting temperature protection control for the catheter pump further includes: Step 403 .

Step 403, if it is determined that the catheter pump has returned to a normal temperature state, adjust the catheter pump from the current gear to the abnormal temperature gear, and determine whether the catheter pump is in an abnormal temperature state at the abnormal temperature gear.

Specifically, the control device will record the current gear of the catheter pump as an abnormal temperature gear before each execution of the gear reduction operation of the catheter pump. When the control device judges that the catheter pump has returned to a normal temperature state, that is, when the catheter pump changes from an abnormal temperature state to a normal temperature state, the control device can adjust the catheter pump back to the recorded abnormal temperature gear to run, and judge the catheter pump Whether the pump is in an abnormal temperature state at the abnormal temperature gear.

In this embodiment, through the above steps, the catheter pump can be restored to the recorded abnormal temperature gear operation in a timely manner while changing from the abnormal temperature state to the normal temperature state, which improves the convenience of the temperature control method of the catheter pump .

In some embodiments, when the catheter pump is in an abnormal temperature state, an abnormal temperature alarm is given to remind staff that the catheter pump is currently in an abnormal temperature state. In the case of adjusting the operating gear of the catheter pump to the abnormal temperature gear, the abnormal temperature alarm is eliminated, thus improving the convenience of the temperature control method of the catheter pump.

In some embodiments, as shown in Figure 6, when the catheter pump is adjusted from the current gear to the abnormal temperature gear, the number of adjustments is recorded; when the catheter pump is in an abnormal temperature state, the catheter pump is started The steps of temperature protection control also include step 601 to step 602 .

Step 601, when it is judged that the temperature of the catheter pump has returned to a normal state and the number of adjustments is less than or equal to the threshold value of the number of gear adjustments, control the catheter pump to keep running at an abnormal temperature gear. Among them, the gear with abnormal temperature is regarded as the normal gear.

Step 602, in the case of judging that the temperature of the catheter pump has returned to a normal state and the number of times of adjustment is greater than the threshold value of the number of gear adjustment times, a first alarm signal is generated. The first alarm signal is used to prompt the catheter pump to have an abnormal temperature in the abnormal temperature gear.

Specifically, after the catheter pump is downshifted, the temperature of the catheter pump is judged to be normal, and the control device adjusts the gear to the previously recorded abnormal temperature gear, and judges whether the temperature is abnormal again during the operation of the abnormal temperature gear. Abnormal, the control device can display "normal temperature", and make the catheter pump run at the abnormal temperature gear, and eliminate the alarm. If the temperature abnormality occurs again after the control device is adjusted back to the abnormal temperature gear, the control device still lowers the gear again and obtains the second temperature value to judge whether the temperature is normal. ) still cannot return to normal at the abnormal temperature gear, then control the catheter pump to run at the normal temperature gear after lowering the gear and give the first alarm signal. The first alarm signal can be prompted as "X gear temperature is abnormal , currently running in gear X-1". In addition, the threshold for the number of times of shifting back can be flexibly set according to requirements in practical applications, and is not limited here.

In some embodiments, as shown in FIG. 7 , before the step of downshifting the catheter pump to operate at a lower gear than the current gear, the step of recording the running gear as an abnormal temperature gear is also included.

In the case that the catheter pump is in an abnormal temperature state, the step of starting temperature protection control for the catheter pump further includes: Step 404 to Step 406 .

Step 404, if the reduced gear is the lowest gear, acquire the first temperature value of the environment where the catheter pump is located.

Specifically, the control device will record that the gear currently operated by the catheter pump is the abnormal temperature gear before each execution of the downshift operation of the catheter pump. In the case that the reduced gear is the lowest gear, the control device will obtain the temperature of the environment where the catheter pump is in the non-operating state again, that is, the first temperature value, so as to obtain the updated human body basal body temperature value at this time ; The control device restarts the catheter pump according to the recorded abnormal temperature gear.

In some embodiments, when the lowered gear is the lowest gear, the catheter pump restarts according to the preset waiting time, that is, after the motor stops, the restart countdown is started, and after the countdown ends, the current pump casing is tested The temperature is the first temperature value. The patient's basal body temperature is updated, and the catheter pump is automatically restarted according to the recorded abnormal temperature level, thereby improving the accuracy of the obtained first temperature value.

Step 405, restart the catheter pump at the abnormal temperature gear, obtain the second temperature value, and calculate the temperature according to the first target temperature difference value to determine whether the catheter pump is in an abnormal temperature state; as in the above step 301 and step 302.

Step 406, if it is judged that the temperature of the catheter pump is in a normal state, generate a second alarm signal, and the second alarm signal is used to prompt that the environment of the catheter pump is abnormal.

Specifically, the control device restarts the catheter pump at an abnormal temperature gear, acquires a second temperature value, and judges whether the catheter pump is in an abnormal temperature state according to the first target temperature difference. If the temperature of the catheter pump returns to normal, the control device outputs a second alarm signal, that is, the patient's temperature rise alarm, and the control device controls the normal operation of the catheter pump; if the temperature of the catheter pump is still abnormal, it enters the temperature protection function again. In this embodiment, it can be judged in time whether the temperature value of the environment where the catheter pump is located, that is, whether the basal body temperature of the human body has risen, which improves the convenience of the temperature control method of the catheter pump.

In some embodiments, the temperature control method also includes:

In the case of restarting the catheter pump according to the abnormal temperature gear, record the number of restarts of the catheter pump; when the number of restarts is less than or equal to the threshold of the number of restarts, perform the above-mentioned operation when the catheter pump is in an abnormal temperature state and the operating gear is not the lowest gear In the case of a lower gear, the step of running in a lower gear is as in step 401 above.

In this embodiment, through the above steps, after the control device restarts the catheter pump, and when the number of restarts of the catheter pump is less than or equal to the threshold value of restart times, the control device judges again whether the catheter pump is in an abnormal temperature state or whether the catheter pump The operating gear is not the lowest gear to determine whether to further reduce the operating gear of the catheter pump, that is, to judge whether to restart the temperature protection control of the catheter pump, thereby improving the convenience of the temperature control method of the catheter pump.

In some embodiments, the temperature control method further includes: when the number of restarts is greater than the threshold of restart times, generating a third alarm signal, where the third alarm signal is used to prompt that the catheter pump fails to restart.

Specifically, when the number of restarts of the catheter pump is greater than the corresponding threshold of the number of restarts of the catheter pump, the control device will generate a third alarm signal in time to prompt the staff that the catheter pump failed to restart; then, the staff judges whether to restart the catheter pump again 1. Check whether the pump body inlet of the catheter pump is blocked and whether the catheter pump needs to be replaced. Therefore, the convenience of the temperature control method of the catheter pump is improved.

It should be understood that although the various steps in the flow charts of FIGS. 1-7 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 1-7 may include multiple steps or stages, these steps or stages are not necessarily executed at the same time, but may be executed at different moments, the execution of these steps or stages The sequence is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

In one embodiment, as shown in FIG. 8 , a temperature control device for a catheter pump is provided, including: a data acquisition module 810, a temperature judgment module 820, and a temperature protection module 830, wherein:

The data acquisition module 810 is used to obtain a first temperature value when the catheter pump is not running; the first temperature value is the temperature value of the environment where the catheter pump is located, and is used to obtain a first temperature value when the catheter pump is in a running state. , to obtain the second temperature value, the second temperature value is the temperature value of the pump body of the catheter pump;

The temperature judging module 820 is used to judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference, wherein the first target temperature difference refers to the difference between the first temperature value and the second temperature value;

The temperature protection module 830 is configured to activate temperature protection control on the catheter pump when the temperature of the catheter pump is abnormal, so that the temperature of the catheter pump is in a normal state.

In some embodiments, the temperature judging module 820 includes a first temperature judging unit. Wherein, the first temperature judging unit is used for judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference and the first temperature difference threshold corresponding to the operating gear.

In some embodiments, the temperature protection module 830 includes a first temperature protection unit. Wherein, the first temperature protection unit is used to reduce the gear operation when the catheter pump is in an abnormal temperature state and the operating gear is not the lowest gear; obtain the second temperature value of the catheter pump after the lower gear operation, and When it is judged that the catheter pump is in an abnormal state of temperature according to the first target temperature difference and the first temperature difference threshold corresponding to the lowered gear, the gear will be lowered again until it is judged that the catheter pump returns to a normal temperature state or after it is lowered The gear is the lowest gear.

In some embodiments, the first temperature protection unit is also used to record the gear operated before the step of downshift operation The bit is the temperature abnormal gear. The temperature protection module 830 also includes a second temperature protection unit. When the second temperature protection unit judges that the temperature of the catheter pump has returned to a normal state, the gear of the catheter pump is adjusted to an abnormal temperature gear for operation.

In some embodiments, the second temperature protection unit is also used to record the number of adjustments when the gear is adjusted to an abnormal temperature gear operation; the second temperature protection unit is also used to judge that the catheter pump returns to a normal temperature state And when the number of adjustments is less than or equal to the threshold value of the number of gear adjustments, the catheter pump is kept running at the abnormal temperature gear. In some embodiments, the second temperature protection unit is also used to record the adjustment times when the catheter pump is adjusted from the current gear to the abnormal temperature gear. The second temperature protection unit is also used to generate a first alarm signal when it is judged that the catheter pump has returned to a normal temperature state and the number of adjustments is greater than the threshold value of the number of gear adjustment times; the first alarm signal is used to prompt the catheter pump to be in an abnormal temperature range There is a temperature abnormality in the bit. In some embodiments, the first temperature protection unit is further configured to record the operating gear as an abnormal temperature gear before the step of downshifting the catheter pump to operate at a lower gear than the current gear. The temperature protection module 830 also includes a third temperature protection unit. The third temperature protection unit is used to obtain the first temperature value of the environment where the catheter pump is located when the reduced gear is the lowest gear; restart the catheter pump at the abnormal temperature gear to obtain the second temperature value, and According to the first target temperature difference, it is judged whether the catheter pump is in an abnormal temperature state; if it is judged that the catheter pump is in a normal temperature state, a second alarm signal is generated, and the second alarm signal is used to prompt that the environment of the catheter pump is abnormal.

In some embodiments, the third temperature protection unit is also used to record the number of restarts of the catheter pump in the case of restarting the catheter pump in an abnormal temperature range; When the pump is in an abnormal temperature state and the operating gear is not the lowest gear, the step of reducing the gear of the catheter pump to a lower gear than the current gear.

In some embodiments, the third temperature protection unit is further configured to generate a third alarm signal when the number of restarts is greater than a threshold value of the number of restarts, and the third alarm signal is used to prompt that the catheter pump fails to restart.

In some embodiments, the temperature judging module 820 includes a second temperature judging unit. Wherein, the second temperature judging unit is used for judging that the catheter pump is in an abnormal temperature state when the first target temperature difference is greater than the first temperature difference threshold.

In some embodiments, the second temperature judging unit is further configured to judge that the catheter pump is in a normal temperature state when the first target temperature difference is less than or equal to the first temperature difference threshold.

In some embodiments, the temperature judging module 820 includes a third temperature judging unit. Wherein, the third temperature judging unit is used for judging that the catheter pump is in an abnormal temperature state when the first target ratio is greater than the first ratio threshold; wherein, the first target ratio refers to the second target temperature difference and the preset safety temperature difference The quotient of the value; the second target temperature difference refers to the difference between the first target temperature difference and the preset safe temperature difference.

The above-mentioned first temperature judging unit and the third temperature judging unit can be mutually selectively set, for example, when the first temperature judging unit exists, the second temperature judging unit can be selectively set. For the specific limitations of the temperature control device of the catheter pump, reference may be made to the above-mentioned definition of the temperature control method of the catheter pump, which will not be repeated here. Each module in the above-mentioned temperature control device of the catheter pump can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

In one embodiment, a control device 1030 is provided. The control device 1030 may be a terminal, and its internal structure may be as shown in FIG. 9 . The control device 1030 includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Wherein, the processor of the control device 1030 is used to provide calculation and control capabilities. The memory of the control device 1030 includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the control device 1030 is used to communicate with external terminals in a wired or wireless manner, and the wireless manner can be realized through WIFI, operator network, NFC (Near Field Communication) or other technologies. The computer program, when executed by a processor, implements a method of catheter pump placement. The display screen of the control device 1030 may be a liquid crystal display screen or an electronic ink display screen, and the input device of the control device 1030 may be a touch layer covered on the display screen, or a button, a trackball or Touchpad, can also be an external keyboard, touchpad or mouse etc.

Those skilled in the art can understand that the structure shown in FIG. 9 is only a block diagram of a partial structure related to the solution of this application, and does not constitute a limitation on the control device 1030 to which the solution of this application is applied. The specific control device 1030 may include more or fewer components than shown, or combine certain components, or have a different arrangement of components.

In one embodiment, a control device 1030 is provided. The control device 1030 includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps of any method in the above method embodiments are implemented.

In one embodiment, as shown in FIG. 10 , a catheter pump system is provided. The catheter pump system includes a catheter pump 1010 , a temperature sensor 1020 and any control device 1030 in the above control device embodiments. The catheter pump 1010 is electrically connected to the control device 1030 .

Specifically, the temperature sensor 1020 is disposed in the motor of the catheter pump 1010 or on the casing of the catheter pump 1010 , and is electrically connected to the control device 1030 . In a specific example, as shown in FIG. 11 , the temperature sensor 1020 may be a thermocouple, a thermistor, a resistance temperature detector (RTD), or the like. The signal line of the temperature sensor 1020 extends from the cable junction at the end of the motor of the catheter pump 1010 to the surface of the motor, and the probe is located at the front, middle, tail and other positions of the motor surface of the catheter pump 1010 or inside the motor of the catheter pump 1010, etc. Location. The temperature acquisition frequency of the temperature sensor 1020 is not lower than 200 Hz. The above are only specific examples, and can be flexibly set according to requirements in practical applications, and no limitation is imposed here.

In this embodiment, the temperature protection control of the catheter pump can be activated through the above-mentioned catheter pump system, so that the temperature of the catheter pump is in a normal state, thereby avoiding the temperature rise of the catheter pump body caused by accidental factors, and improving the temperature of the catheter pump. The safety and adaptability of the pump ensure the working efficiency of the catheter pump.

In some embodiments, as shown in FIG. 10, the catheter pump system further includes a display screen 1040; the display screen 1040 is electrically connected to the control device 1030, and can be used to display the first temperature value and the second temperature value, and/or display the above-mentioned alarm signal . Therefore, the convenience of the catheter pump system is improved.

In one embodiment, a computer-readable storage medium is provided. A computer program is stored on the above-mentioned computer-readable storage medium. When the computer program is executed by a processor, the steps of any method in the above-mentioned method embodiments are implemented.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only represent several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims

A temperature control method for a catheter pump, comprising:

When the catheter pump is not in operation, a first temperature value is obtained; the first temperature value is the temperature value of the environment where the catheter pump is located;

When the catheter pump is in the running state, obtain a second temperature value, and judge whether the catheter pump is in an abnormal temperature state according to the first target temperature difference; wherein, the second temperature value is the catheter pump The temperature value of the pump body; the first target temperature difference refers to the difference between the first temperature value and the second temperature value;

When the catheter pump is in an abnormal temperature state, the temperature protection control is activated on the catheter pump so that the catheter pump is in a normal temperature state.
The temperature control method according to claim 1, wherein, when the catheter pump is in the running state, the second temperature value of the environment where the catheter pump is located is acquired, and judged according to the first target temperature difference The step of whether the catheter pump is in an abnormal temperature state includes:

When the catheter pump is in the running state, acquire the current operating gear of the catheter pump and the second temperature value of the catheter pump at the current operating gear;

According to the first target temperature difference and the first temperature difference threshold corresponding to the currently operating gear, it is judged whether the catheter pump is in an abnormal temperature state.
The temperature control method according to claim 2, wherein when the catheter pump is in an abnormal temperature state, the step of starting temperature protection control for the catheter pump comprises:

When the catheter pump is in an abnormal state of temperature and the current operating gear is not the lowest gear, lowering the gear of the catheter pump to run lower than the current gear;

Acquiring the second temperature value of the catheter pump after the gear is lowered, and judging that the catheter pump is in the In the case of an abnormal temperature state, the gear is lowered again until it is determined that the catheter pump returns to the normal temperature state or the lowered gear is the lowest gear.
The temperature control method according to claim 3, wherein, before the step of lowering the gear of the catheter pump to operate at a lower gear than the current gear, it also includes recording that the current gear is an abnormal temperature gear; In the case that the catheter pump is in an abnormal state of temperature, the step of starting temperature protection control for the catheter pump further includes: when it is determined that the catheter pump returns to a normal temperature state, switching the catheter pump from the The lowered gear is adjusted to the abnormal temperature gear for operation, and it is determined whether the catheter pump is in an abnormal temperature state at the abnormal temperature gear.
The temperature control method according to claim 4, wherein when the catheter pump is adjusted from the lowered gear to the abnormal temperature gear, the number of adjustments is recorded;

In the case that the catheter pump is in an abnormal temperature state, the step of starting temperature protection control for the catheter pump further includes:

When it is determined that the catheter pump has returned to a normal temperature state and the number of adjustments is less than or equal to a threshold value for the number of gear adjustments, the catheter pump is controlled to keep running at the abnormal temperature gear.
The temperature control method according to claim 4, wherein when the catheter pump is adjusted from the lowered gear to the abnormal temperature gear, the number of adjustments is recorded;

In the case that the catheter pump is in an abnormal temperature state, the step of starting temperature protection control for the catheter pump further includes:

When it is determined that the catheter pump has returned to a normal temperature state and the number of adjustments is greater than the threshold value of the number of gear adjustments, a first alarm signal is generated; the first alarm signal is used to prompt the catheter pump in the There is a temperature abnormality in the above temperature abnormal gear.
The temperature control method according to any one of claims 3 to 6, wherein said stepping down the catheter pump Before the step of operating at a lower level than the current gear, it also includes recording that the current operating gear is an abnormal temperature gear; and when the catheter pump is in an abnormal temperature state, starting temperature protection for the catheter pump Control steps also include:

If the lowered gear is the lowest gear, acquire a first temperature value of the environment where the catheter pump is located;

Restarting the catheter pump at the abnormal temperature gear, acquiring the second temperature value, and judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference;

When it is judged that the temperature of the catheter pump is in a normal state, a second alarm signal is generated, and the second alarm signal is used to prompt that the environment of the catheter pump is abnormal.
The temperature control method according to claim 7, further comprising:

In the case of restarting the catheter pump, recording the number of restarts of the catheter pump;

In the case that the number of restarts is less than or equal to the threshold of restart times, enter the step of lowering the gear of the catheter pump to the step of operating below the current gear; and/or

In a case where the restart times are greater than the restart times threshold, a third alarm signal is generated, and the third alarm signal is used to prompt that the catheter pump fails to restart.
The temperature control method according to claim 1, wherein the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference comprises:

When the first target temperature difference is greater than the first temperature difference threshold, it is determined that the catheter pump is in an abnormal temperature state; the first temperature difference threshold is the first preset threshold or the first preset safety temperature difference. A preset multiple.
The temperature control method according to claim 9, wherein the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference further comprises:

When the first target temperature difference is less than or equal to the first temperature difference threshold, it is determined that the catheter pump is in a normal temperature state.
The temperature control method according to claim 1, wherein the step of judging whether the catheter pump is in an abnormal temperature state according to the first target temperature difference comprises:

When the first target ratio is greater than the first ratio threshold, it is judged that the catheter pump is in an abnormal temperature state; wherein, the first target ratio refers to the quotient of the second target temperature difference and the preset safety temperature difference; The second target temperature difference refers to the difference between the first target temperature difference and the preset safe temperature difference.
A temperature control device for a catheter pump, comprising:

A data acquisition module, configured to acquire a first temperature value when the catheter pump is not in operation; the first temperature value is the temperature value of the environment where the catheter pump is located; When the catheter pump is in the running state, acquire a second temperature value, where the second temperature value is the temperature value of the pump body of the catheter pump;

A temperature judging module, configured to judge whether the catheter pump is in an abnormal temperature state according to a first target temperature difference; wherein, the first target temperature difference refers to the difference between the first temperature value and the second temperature value difference;

The temperature protection module is configured to start temperature protection control on the catheter pump when the catheter pump is in an abnormal temperature state, so that the catheter pump is in a normal temperature state.
A control device, comprising a memory and a processor, the memory stores a computer program, wherein the processor implements the steps of the method according to any one of claims 1 to 11 when executing the computer program.
A catheter pump system, the catheter pump system comprising a catheter pump, a temperature sensor and a control device as claimed in claim 15; the catheter pump is electrically connected to the control device;

The temperature sensor is arranged in the motor of the catheter pump or on the casing of the catheter pump, and is electrically connected to the control device.
A computer-readable storage medium on which a computer program is stored, wherein the computer program implements the steps of the method according to any one of claims 1 to 11 when executed by a processor.