Control equipment and ventricular assist system

Abstract

The utility model discloses a control device and a ventricular assist system. The control device is applied to the ventricular assist system, the ventricular assist system comprises a blood pumping catheter, and the control device comprises a power supply assembly used for providing a working power supply for the blood pumping catheter; the interface assembly is used for detecting the connection state of the blood pumping catheter and the control equipment; the power conversion assembly is electrically connected with the power supply assembly; the controller, the power supply assembly, the interface assembly and the power supply conversion assembly are electrically connected with the controller, and the controller is used for obtaining configuration information of the blood pumping catheter under the condition that the connection state is successful, so that the power supply conversion assembly is controlled to convert a working power supply provided by the power supply assembly according to the configuration information; the configuration information comprises the working voltage of the blood pumping motor. According to the embodiment of the invention, the system adapts to the functional requirements of different blood pumping catheters, adapts to various types of blood pumping catheters, reduces the development tasks of control equipment, reduces the cost, and reduces the loss.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and particularly relates to a control device and a ventricular assist system. Background Technology

[0002] Currently, the medical device technologies at home and abroad are uneven, and the medical requirements for the blood pumping catheters of ventricular assist systems are different, resulting in different models of blood pumping catheters. The configuration parameters of the blood pumping catheters are also different, such as different blood flow requirements, different blood pumping motors, and different signal transmission of blood pumping catheters. As a result, the control equipment of the ventricular assist system that is compatible with the blood pumping catheter is also different.

[0003] In related technologies, each type of blood pumping catheter requires a corresponding control device to meet its operational needs, which not only increases development tasks but also increases costs and causes unnecessary losses. Utility Model Content

[0004] This application provides a control device and a ventricular assist system that can adapt to the functional requirements of different blood pumping catheters, adapt to various types of blood pumping catheters, reduce the development tasks of control devices, reduce costs, and reduce losses.

[0005] In a first aspect, embodiments of this application provide a control device applied to a ventricular assist system, the ventricular assist system including a blood pumping catheter, and the control device comprising:

[0006] A power supply component, which provides operating power to the blood pumping catheter;

[0007] An interface component, wherein the interface component is used to detect the connection status between the blood pumping catheter and the control device;

[0008] A power conversion component is electrically connected to the power supply component. The power conversion component is used to convert the working power provided by the power supply component so that the converted working power provides working voltage for the blood pumping catheter.

[0009] The controller is electrically connected to the power supply component, the interface component, and the power conversion component. When the connection status is successful, the controller is used to obtain the configuration information of the blood pumping catheter, so as to control the power conversion component to convert the working power provided by the power supply component according to the configuration information.

[0010] Optionally, the power conversion component includes:

[0011] A voltage conversion unit, wherein the power input terminal of the voltage conversion unit is connected to the power supply component;

[0012] The regulating unit has its input terminal connected to the output terminal of the voltage conversion unit, its control terminal connected to the controller, and its output terminal serving as the power output terminal of the control device.

[0013] Optionally, the adjustment unit includes an adjustable resistor, the first end of which is connected to the output terminal of the voltage conversion unit and the power output terminal, the second end of which is connected to the feedback voltage terminal of the voltage conversion unit, and the control terminal of which is connected to the controller.

[0014] Optionally, the control device further includes:

[0015] The motor drive unit is electrically connected to the controller, the power conversion component, and the blood pumping motor of the blood pumping catheter, and is used to drive the blood pumping motor to operate.

[0016] Optionally, the interface component includes:

[0017] A photoelectric composite communication interface, which is adapted to the blood pumping catheter;

[0018] A detection pin is provided, which is located within the optoelectronic composite communication interface and is electrically connected to the controller.

[0019] Optionally, the control device further includes:

[0020] The display is electrically connected to the controller;

[0021] A first memory, which is electrically connected to the controller.

[0022] Secondly, embodiments of this application provide a ventricular assist system, the ventricular assist system comprising:

[0023] The blood pumping catheter, the communication conversion component, and the control device described in the first aspect, wherein the blood pumping catheter is connected to the control device via the communication conversion component.

[0024] Optionally, the blood pumping catheter includes an electrical communication interface and an optical communication interface, and the communication conversion component includes:

[0025] A first connector, which is adapted to the interface component of the control device;

[0026] The second connector is electrically connected to the first connector and is adapted to the electrical communication interface;

[0027] The third connector is electrically connected to the first connector and is adapted to the optical communication interface.

[0028] Optionally, the interface component of the control device includes:

[0029] An optical transmission detection pin, which is adapted to the third connector;

[0030] Electrical transmission detection pin, which is adapted to the second connector.

[0031] Optionally, the blood pumping catheter includes:

[0032] A second memory is used to store the configuration information of the blood pumping catheter, including the type of blood pumping catheter and the operating voltage of the blood pumping motor.

[0033] Optionally, the communication conversion component includes a removable communication conversion component.

[0034] Thirdly, embodiments of this application provide a control method for a ventricular assist system, applied to the control device of the ventricular assist system described in the second aspect, the method comprising:

[0035] Obtain the configuration information of the blood pumping catheter, the configuration information including the operating voltage of the blood pumping motor;

[0036] The output voltage of the communication conversion component is determined based on the operating voltage, so as to transmit the operating voltage to the blood pumping catheter through the interface component.

[0037] Optionally, before obtaining the configuration information of the blood pumping catheter, the method further includes:

[0038] Obtain the detection signal of the interface component;

[0039] When the detection signal is a preset detection signal, the connection status of the control device and the blood pumping catheter is determined to be a successful connection status;

[0040] The step of obtaining the configuration information of the blood pumping catheter includes:

[0041] The configuration information of the blood pumping catheter is obtained from the second memory of the blood pumping catheter.

[0042] The control device and ventricular assist system of this application embodiment can detect the connection status between the blood pumping catheter and the control device when the blood pumping catheter is connected to the control device. When the control device is connected to the blood pumping catheter, the controller obtains the working voltage of the blood pumping motor in the blood pumping catheter. Then, the controller controls the power conversion component to work according to the working voltage, converting the working power provided by the power supply component into the working voltage of the blood pumping motor, thereby realizing the adaptive voltage regulation of the control device. This enables the device to adapt to various types of blood pumping catheters, reducing the development tasks of the control device, lowering costs, and reducing losses. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a structural block diagram of the control device provided in the first embodiment of this application;

[0045] Figure 2 This is a structural block diagram of the power conversion component provided in the second embodiment of this application;

[0046] Figure 3 This is a circuit schematic diagram of the power conversion component provided in the third embodiment of this application;

[0047] Figure 4 This is a structural block diagram of the ventricular assist system provided in the fourth embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of the communication conversion component provided in the fifth embodiment of this application;

[0049] Figure 6 This is a flowchart of the control method for the ventricular assist system provided in the sixth embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Control device; 11. Power supply component; 12. Interface component; 121. Optoelectronic composite communication interface; 122. Detection pin; 1221. Optical transmission detection pin; 1222. Electrical transmission detection pin; 13. Power conversion component; 131. Voltage conversion unit; 132. Adjustment unit; 14. Controller; 15. Motor drive unit; 16. Display; 17. First memory; 2. Blood pumping catheter; 21. Electrical communication interface; 22. Optical communication interface; 23. Second memory; 3. Communication conversion component; 31. First connector; 32. Second connector; 33. Third connector. Detailed Implementation

[0052] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0054] To facilitate understanding of this application, a brief description of the background technology is provided below:

[0055] Currently, medical device technology is developing rapidly both domestically and internationally, with various medical devices and equipment emerging in an endless stream. The pace of updates and iterations is accelerating. Due to the differences in their respective basic technological fields, the development cycles of the medical device equipment and blood pumping catheters are different, resulting in different differences in the research and development progress of the control equipment and blood pumping catheters of the ventricular assist system.

[0056] Because blood pumping catheters from different manufacturers and with different specifications vary in shape, each type of blood pumping catheter requires a corresponding control device. As mentioned earlier, due to different development progress, different types of blood pumping catheters require corresponding control devices to be used. However, with the continuous updating of blood pumping catheters, the control devices cannot meet the needs of various types of blood pumping catheters. For example, the blood pumping flow requirements are different, the internal and external operation types of the blood pumping motor are different, and the types of photoelectric composite interfaces and pure electric communication interfaces are different. This results in blood pumping motors with different rated motor voltages not being able to work at their optimal rated operating state when connected to different control devices, reducing work efficiency and increasing losses. If a control device is developed for each type of blood pumping catheter, it will not only increase a lot of development tasks, but also increase costs. Therefore, there is an urgent need for a control device and a ventricular assist system.

[0057] To address the problems of existing technologies, this application provides a control device and a ventricular assist system. When the blood pumping catheter is connected to the control device, the interface component can detect the connection status between the blood pumping catheter and the control device. When the control device is connected to the blood pumping catheter, the controller obtains the operating voltage of the blood pumping motor in the blood pumping catheter. Then, the controller controls the power conversion component to work according to the operating voltage, converting the operating power provided by the power supply component into the operating voltage of the blood pumping motor. This achieves adaptive voltage regulation of the control device, thereby enabling adaptation to various types of blood pumping catheters, reducing the development tasks of the control device, lowering costs, and reducing losses.

[0058] The control device provided in the embodiments of this application will be described first below.

[0059] Figure 1 A structural block diagram of a control device according to an embodiment of this application is shown. Figure 1 As shown, control device 1 may include:

[0060] Power supply component 11, which provides operating power to the blood pumping catheter;

[0061] Interface component 12 is used to detect the connection status between the blood pumping catheter 2 and the control device 1;

[0062] Power conversion component 13 is electrically connected to power supply component 11. Power conversion component 13 is used to convert the working power provided by power supply component 11 so that the converted working power provides working voltage for blood pumping catheter 2.

[0063] The controller 14, power supply component 11, interface component 12, and power conversion component 13 are all electrically connected to the controller 14. When the connection status is successful, the controller 14 acquires the configuration information of the blood pumping catheter 2, and controls the power conversion component 13 to convert the operating power provided by the power supply component 11 according to the configuration information. The configuration information may include the operating voltage of the blood pumping motor. In this embodiment, when the blood pumping catheter 2 is connected to the control device 1, the interface component 12 can detect the connection status between the blood pumping catheter 2 and the control device 1. When the control device 1 is connected to the blood pumping catheter 2, the controller 14 acquires the operating voltage of the blood pumping motor in the blood pumping catheter 2. Then, the controller 14 controls the power conversion component 13 to work according to the operating voltage, converting the operating power provided by the power supply component 11 into the operating voltage of the blood pumping motor, thereby realizing adaptive voltage regulation of the control device 1. This enables adaptation to various types of blood pumping catheters 2, reducing the development tasks of the control device 1, lowering costs, and reducing losses.

[0064] In some embodiments, the power supply component 11 may be an industrial power supply or a 22V AC power supply connected to the mains power supply for the control device 1, without limitation.

[0065] In other embodiments, the configuration information may also include at least one of the following: the motor type of the blood pump motor, the usage duration of the blood pump catheter 1, and the number of uses.

[0066] Reference Figure 2 In some other embodiments, the power conversion component 13 may include:

[0067] Voltage conversion unit 131, the power input terminal of voltage conversion unit 131 is connected to power supply component 11;

[0068] The regulating unit 132 has its input terminal connected to the output terminal of the voltage conversion unit 131, its control terminal connected to the controller 14, and its output terminal connected to the power output terminal of the control device 1.

[0069] In this embodiment, when it is necessary to adjust the driving voltage of the blood pumping catheter 2, the power supply component 11 first provides conversion power to the voltage conversion unit 131. Then, the controller 14 determines the rated voltage of the blood pumping catheter 2 according to the acquired configuration information. After that, the controller 14 adjusts the adjustment unit 132 according to the rated voltage so that the voltage output by the voltage conversion unit 131 is the rated voltage of the blood pumping catheter 2, ensuring that the blood pumping catheter 2 can work in the optimal rated voltage environment, thereby realizing the adaptive adjustment of the control voltage.

[0070] In some other embodiments, in order to balance design costs, the voltage output by the control device 1 can also be adjusted. The adjustment unit 132 may include an adjustable resistor. The first end of the adjustable resistor is connected to the output end of the voltage conversion unit 131 and the power output end, respectively. The second end of the adjustable resistor is connected to the feedback voltage end of the voltage conversion unit 131, and the control end of the adjustable resistor is connected to the controller 14.

[0071] In this embodiment, the controller 14 can adjust the adjustable resistor according to the rated voltage set in the blood pumping catheter 2. That is, for different rated voltages, the driving voltage input from the control device 1 to the blood pumping catheter 2 can be changed by changing the resistance value of the adjustable resistor, so that the blood pumping catheter 2 can work in the optimal working state.

[0072] In some embodiments, refer to Figure 3 , Figure 3 The circuit connection diagram of voltage conversion unit 131 and regulation unit 132 is shown. Specifically, voltage conversion unit 131 can be a DC-DC conversion circuit, such as... Figure 3As shown, the voltage conversion unit 131 may include a first chip U1, capacitor C1, capacitor C2, capacitor C3 and inductor L1. The VIN pin of the first chip U1 is connected to the power supply component 11 and the first end of capacitor C1, respectively. The second end of capacitor C1 is connected to the ground terminal. The EN pin of the first chip U1 is connected to the external enable terminal. The SS pin of the first chip U1 is connected to the first end of capacitor C2. The second end of capacitor C2 is connected to the ground terminal. The BST pin of the first chip U1 is connected to the first end of capacitor C3. The second end of capacitor C3 is connected to the SW pin of the first chip U1 and the first end of inductor L1, respectively. The FB pin of the first chip U1 is connected to the adjustment unit 132. The second end of inductor L1 is connected to the adjustment unit 132 and the power output terminal, respectively.

[0073] The first chip U1 can be a DC-DC converter chip, and the external enable terminal can be the enable signal output by the controller 14 to start the first chip U1. Capacitors C1, C2, C3 and inductor L1 are filter capacitors to ensure that the first chip U1 works normally.

[0074] In this embodiment, see Figure 3 The adjustment unit 132 may include an adjustable resistor R1 and a resistor R2. The first end of the adjustable resistor R1 is connected to the second end of the inductor L1 and the power output terminal, respectively. The second end of the adjustable resistor R1 is connected to the FB pin of the first chip U1 and the first end of the resistor R2, respectively. The second end of the resistor R2 is connected to the ground terminal. The control terminal of the adjustable resistor R1 is connected to the controller 14.

[0075] When it is necessary to adjust the drive voltage output by the control device 1, the controller 14 first outputs an enable signal, which can be a high-level signal, to control the first chip U1 to start working. At this time, the first chip U1 starts working and converts the working voltage provided by the power supply component 11. During the voltage conversion process, the controller 14 synchronously outputs a control signal to adjust the resistance value of the adjustable resistor R1 to change the drive voltage output by the first chip U1, so that the output drive voltage is consistent with the rated voltage of the blood pumping catheter 2, ensuring that the blood pumping catheter 2 can work in the best working state.

[0076] Specifically, the driving voltage can be adjusted according to formula (1):

[0077] V OUT =V REF *(1+R1 / R2) (1)

[0078] Among them, V OUT The operating voltage output by the voltage conversion unit, V REFR1 is the reference voltage for the operation of the first chip U1, R2 is the resistance value of the adjustable resistor R1, and R2 is the resistance value of the resistor R2.

[0079] The resistance value of the adjustable resistor R1 can be calculated according to the above formula (1). The controller 14 adjusts the resistance value of the adjustable resistor R1 through the communication interface of the adjustable resistor R1 to ensure that the output working voltage enables the blood pumping catheter 2 to work in the best working state.

[0080] It is worth noting that the optimal operating condition is that the operating voltage of the blood pumping motor in the blood pumping catheter 2 is the rated voltage.

[0081] In other embodiments, for other motors in the ventricular assist system, such as the perfusion motor of the perfusion system, the rated voltage of the perfusion motor can be directly obtained, and the operating voltage output by the control device can be adjusted by the voltage conversion unit 131 and the adjustment unit to ensure that the perfusion motor can work in the best condition.

[0082] Reference Figure 1 In some other embodiments, the control device 1 further includes a motor drive unit 15, which is electrically connected to the controller, the power conversion component and the blood pumping motor of the blood pumping conduit 2, respectively. The motor drive unit 15 is used to drive the blood pumping motor to run.

[0083] Specifically, in this embodiment, after the controller 14 controls the power conversion component 13 to convert the working power provided by the power supply component, the power conversion component 13 inputs the converted working voltage to the motor drive unit 15. The motor drive unit 15 drives the blood pump motor to run according to the input converted working voltage, so as to ensure the stable operation of the blood pump motor.

[0084] In some other embodiments, the motor drive unit 15 can also drive the injection motor to operate normally, that is, a corresponding motor drive unit 15 can be configured for different motors.

[0085] It is worth noting that the motor drive unit 15 is different for each type of motor, as long as it can drive the corresponding motor to run. There is no limitation on the motor drive unit 15 here.

[0086] In some other embodiments, interface component 12 may include:

[0087] The optoelectronic composite communication interface 121 is adapted to the blood pumping catheter 2;

[0088] The detection pin 122 is located inside the optoelectronic composite communication interface 121 and is electrically connected to the controller 14.

[0089] In this embodiment, since many blood pumping catheters 2 on the market now use optoelectronic composite communication due to the application of optical fiber transmission technology, an optoelectronic composite communication interface 121 is provided in the interface component 12 of the control device 1 to adapt to the blood pumping catheter 2.

[0090] In this embodiment, a detection pin 122 is provided in the optoelectronic composite communication interface 121. The detection pin 122 is electrically connected to the controller 14 and is used to detect the connection status between the blood pumping catheter 2 and the control device 1. That is, when the blood pumping catheter 2 is inserted into the optoelectronic composite communication interface 121, the detection pin 122 can detect that the blood pumping catheter 2 is connected to the control device 1, and at this time, a signal of successful connection can be transmitted to the control device 1.

[0091] As an example, the detection pin 122 can be connected to an input / output pin of the control device 1. When the blood pumping catheter 2 is connected to the optoelectronic composite communication interface 121, the detection pin 122 will transmit a level signal to the control device 1. This level signal can be a high level signal or a low level signal, which is not limited here. When the control device 1 receives this level signal, it indicates that the blood pumping catheter 2 is successfully connected to the control device 1.

[0092] In other embodiments, the connection status between the blood pumping catheter 2 and the control device 1 can also be detected by other structures; only one example is given here.

[0093] In some other embodiments, the control device 1 may further include:

[0094] The display, display 16, is electrically connected to the controller 14;

[0095] The first memory 17 is electrically connected to the controller 14.

[0096] In this embodiment, the display 16 can display the model of the blood pumping catheter 2 and the operating voltage of the blood pumping motor, so that staff can quickly understand the working status of the blood pumping catheter 2.

[0097] In some other embodiments, the first memory 17 can store the model of the blood pump motor. When the control device 1 cannot directly obtain the configuration information of the blood pump catheter 2, the staff can manually input the model of the blood pump catheter 2 and input the corresponding configuration information of the blood pump catheter 2 into the control device 1. The control device 1 stores the configuration information corresponding to the blood pump catheter 2 into the first memory 17 for convenient use later.

[0098] In other embodiments, this application also provides a ventricular assist system, referring to... Figure 4 , Figure 4A ventricular assist system is shown, which may include:

[0099] The blood pumping catheter 2, the communication conversion component 3, and the aforementioned control device 1 are included. The blood pumping catheter 2 is connected to the control device 1 via the communication conversion component 3.

[0100] In this embodiment, due to the various types of blood pumping catheters 2, the communication requirements of the blood pumping catheters 2 are different, and the rated voltage of the blood pumping motor in the corresponding blood pumping catheter 2 is different. Therefore, in order to adapt to different blood pumping catheters 2, not only does the control device 1 mentioned above need to be able to adapt to the rated voltage of the blood pumping motor, but it also needs to meet different communication requirements. Therefore, for different blood pumping catheters 2, a communication conversion component 3 can be used to connect them to adapt to different blood pumping catheters 2. This not only saves development tasks, but also reduces the cost of developing different control devices 1 for blood pumping catheters 2 and reduces losses.

[0101] Reference Figure 5 In some embodiments, the communication type of the blood pumping catheter 2 can be divided into three types: the first type has only an electrical communication interface, the second type has both an electrical communication interface 21 and an optical communication interface, and the third type is a photoelectric composite interface. For the above three cases, the control device 1 only has a photoelectric composite communication interface 121, meaning it can only directly connect to the blood pumping catheter 2 for the third type. To adapt to the first type and the second type of blood pumping catheter 2, in this embodiment, the communication conversion component 3 may include:

[0102] The first connector 31 is adapted to the interface component 12 of the control device 1;

[0103] The second connector 32 is electrically connected to the first connector 31 and is adapted to the electrical communication interface 21.

[0104] The third connector 33 is electrically connected to the first connector 31 and is adapted to the optical communication interface 22.

[0105] In this embodiment, the first connector 31 can be connected to the optoelectronic composite communication interface 121 of the control device 1. That is, for the first type of blood pumping catheter 2 and the second type of blood pumping catheter 2, the first connector 31 can be first plugged into the optoelectronic composite communication interface 121 of the control device 1 to connect with the control device 1. Then, the electrical communication interface 21 corresponding to the blood pumping catheter 2 is plugged into the second connector 32, and the optical communication interface 22 is plugged into the corresponding third connector 33 to realize the connection between different types of blood pumping catheters 2 and the control device 1.

[0106] In this embodiment, the communication conversion component 3 can adapt to different communication types of blood pumping catheters 2, thereby compensating for the lack of compatibility between the control device 1 and various blood pumping catheters 2 at different development stages. This allows the control device 1 to adapt to the needs of different blood pumping catheters 2, reducing development costs and minimizing losses during the development process.

[0107] In other embodiments, reference is made to Figure 5 In order to detect the connection status of different types of blood pumping catheters 2 and control devices 1, the detection pins 122 of the interface component 12 may include:

[0108] Optical transmission detection pin 122 and optical transmission detection pin 1221 are adapted to the third connector 33;

[0109] Electrical transmission detection pin 122 is adapted to the second connector 32.

[0110] In this embodiment, the optical transmission detection pin 1221 can detect whether the optical communication interface 22 of the blood pumping catheter 2 is connected to the control device 1, and the electrical transmission detection pin 1222 can detect whether the electrical communication interface 21 of the blood pumping catheter 2 is connected to the control device 1. That is, different communication types of the blood pumping catheter 2 are detected by different detection pins 122, which can ensure normal communication between the blood pumping catheter 2 and the control device 1, and also ensure normal data transmission.

[0111] In some other embodiments, the blood pumping catheter 2 may further include:

[0112] The second memory, 23, is used to store the configuration information of the blood pumping catheter 2, including the type of the blood pumping catheter 2 and the operating voltage of the blood pumping motor.

[0113] In this embodiment, the second memory 23 can store the configuration information of the blood pumping catheter 2. That is, when the blood pumping catheter 2 is successfully connected to the control device 1, the control device 1 can read the configuration information on the second memory 23 to facilitate the control device 1 to adjust the output working voltage so that the blood pumping catheter 2 works in the best working state.

[0114] It is worth noting that the control device 1 can read the configuration information on the second memory 23 through both the electrical communication interface 21 and the optical communication interface 22, without any limitation.

[0115] In some embodiments, the communication conversion component 3 may include a removable communication conversion component, that is, when the removable communication conversion component is needed, the first connector 31 can be plugged into the control device 1, and when it is not needed, the first connector 31 can be disconnected from the control device 1, and the blood pumping catheter 2 can be directly connected to the control device 1.

[0116] In a specific scenario, the communication interface type of the blood pumping catheter 2 is a photoelectric composite communication interface type. In this case, the blood pumping catheter 2 can be directly plugged into the interface component 12 in the control device 1 to realize the communication between the blood pumping catheter 2 and the control device 1.

[0117] In another specific scenario, the blood pumping catheter 2 has two independent communication interfaces, namely the aforementioned electrical communication interface 21 and optical communication interface 22. In this case, the removable communication conversion component needs to be plugged into the interface component 12 of the control device 1 first, and then the electrical communication interface 21 of the blood pumping catheter 2 is plugged into the second connector 32, and the optical communication interface 22 of the blood pumping catheter 2 is plugged into the third connector 33, thereby realizing the communication between the blood pumping catheter 2 and the control device 1.

[0118] In other embodiments, reference is made to Figure 6 This application also provides a control method for a ventricular assist system, applied to the control device of the aforementioned ventricular assist system. The control method for the ventricular assist system may include steps S601-S602:

[0119] S601, Obtain the configuration information of the blood pumping catheter;

[0120] S602 determines the output voltage of the communication conversion component based on the operating voltage, so as to transmit the operating voltage to the blood pumping catheter through the interface component.

[0121] In some embodiments, the configuration information may include the operating voltage of the blood pump motor; the configuration information may also include at least one of the following: the motor type of the blood pump motor, the usage time of the blood pump catheter, and the number of uses.

[0122] In this embodiment, when the blood pumping catheter is connected to the control device, the interface component can detect the connection status between the blood pumping catheter and the control device. When the control device is connected to the blood pumping catheter, the controller obtains the operating voltage of the blood pumping motor in the blood pumping catheter. Then, the controller controls the power conversion component to work according to the operating voltage, converting the operating power provided by the power supply component into the operating voltage of the blood pumping motor, thereby realizing the adaptive voltage regulation of the control device. This enables the device to adapt to various types of blood pumping catheters, reducing the development tasks of the control device, lowering costs, and reducing losses.

[0123] In some other embodiments, prior to S601, the method may further include:

[0124] Obtain the detection signals of the interface components;

[0125] When the detection signal is the preset detection signal, the connection status of the control device and the blood pumping catheter is determined to be a successful connection status.

[0126] Obtain the configuration information for the blood pumping catheter, including:

[0127] The configuration information of the blood pumping catheter is obtained from the second memory of the blood pumping catheter.

[0128] Specifically, in S601, the detection signal can be a level signal transmitted by the detection pin.

[0129] In S602, the preset detection signal can indicate a successful connection. That is, by judging whether the level signal is the preset level signal, it can be determined whether the blood pumping catheter and the control device are successfully connected. If the connection is unsuccessful, the control device can control the display to show an error message. If the connection is successful, the control device can communicate directly with the blood pumping catheter through the interface component, read the configuration information of the blood pumping catheter from the second memory of the blood pumping catheter to obtain the rated voltage of the blood pumping motor, and adjust the working voltage output by the control device through the rated voltage to ensure that the blood pumping motor works in the optimal working state.

[0130] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0131] The functional blocks shown in the above structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor first memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0132] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0133] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0134] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor first memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0135] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0136] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0137] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A control device, characterized in that, Applied to a ventricular assist system, the ventricular assist system including a blood pumping catheter (2), the control device (1) including: A power supply assembly (11) is provided for providing operating power to the blood pumping catheter; Interface component (12), the interface component (12) is used to detect the connection status between the blood pumping catheter (2) and the control device (1); A power conversion component (13) is electrically connected to the power supply component (11). The power conversion component (13) is used to convert the working power provided by the power supply component (11) so that the converted working power provides working voltage to the blood pumping catheter (2). The controller (14) is electrically connected to the power supply component (11), the interface component (12) and the power conversion component (13). The controller (14) is used to obtain the configuration information of the blood pumping catheter (2) when the connection status is successful, so as to control the power conversion component (13) to convert the working power provided by the power supply component (11) according to the configuration information.

2. The control device according to claim 1, characterized in that, The power conversion component (13) includes: A voltage conversion unit (131) is provided, wherein the power input terminal of the voltage conversion unit (131) is connected to the power supply component (11); The regulating unit (132) has its input terminal connected to the output terminal of the voltage conversion unit (131), its control terminal connected to the controller (14), and its output terminal being the power output terminal of the control device (1).

3. The control device according to claim 2, characterized in that, The adjustment unit (132) includes an adjustable resistor. The first end of the adjustable resistor is connected to the output end of the voltage conversion unit (131) and the power output end, respectively. The second end of the adjustable resistor is connected to the feedback voltage end of the voltage conversion unit (131), and the control end of the adjustable resistor is connected to the controller (14).

4. The control device according to claim 1, characterized in that, The control device (1) further includes: The motor drive unit (15) is electrically connected to the controller (14), the power conversion component (13) and the blood pumping motor of the blood pumping conduit (2), respectively. The motor drive unit (15) is used to drive the blood pumping motor to run.

5. The control device according to claim 1, characterized in that, The interface component (12) includes: A photoelectric composite communication interface (121) is adapted to the blood pumping catheter (2); The detection pin (122) is located inside the optoelectronic composite communication interface (121) and is electrically connected to the controller (14).

6. A ventricular assist system, characterized in that, The ventricular assist system includes: The blood pumping catheter (2), the communication conversion component (3), and the control device (1) as described in any one of claims 1-5, wherein the blood pumping catheter (2) is connected to the control device (1) via the communication conversion component (3).

7. The ventricular assist system according to claim 6, characterized in that, The blood pumping catheter (2) includes an electrical communication interface (21) and / or an optical communication interface (22), and the communication conversion component (3) includes: A first connector (31) is adapted to the interface assembly (12) of the control device (1); The second connector (32) is electrically connected to the first connector (31) and is adapted to the electrical communication interface (21); The third connector (33) is electrically connected to the first connector (31) and is adapted to the optical communication interface (22).

8. The ventricular assist system according to claim 7, characterized in that, The interface component (12) of the control device (1) includes: Optical transmission detection pin (1221), which is adapted to the third connector (33); Electrical transmission detection pin (1222) is adapted to the second connector (32).

9. The ventricular assist system according to any one of claims 6-8, characterized in that, The blood pumping catheter (2) includes: The second memory (23) is used to store the configuration information of the blood pumping catheter (2), which includes the type of blood pumping catheter (2) and the operating voltage of the blood pumping motor.

10. The ventricular assist system according to any one of claims 6-8, characterized in that, The communication conversion component includes a removable communication conversion component.

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