Control system and device of ventricular auxiliary equipment

Abstract

The embodiment of the invention provides a control system and device for a ventricular assist device, and relates to the technical field of medical instruments, the system comprises the ventricular assist device and a control device, and the control device performs the following disturbance control method during control operation: under the condition that thrombus attachment exists in the ventricular assist device, the control device performs disturbance control on the ventricular assist device; triggering a disturbance control mode; generating a disturbance control signal in response to the disturbance control mode; the signal frequency of the disturbance control signal is determined, and the ventricular assist device is controlled to operate according to the signal frequency and based on the disturbance control signal, so that the ventricular assist device achieves periodic swing operation. By applying the scheme provided by the embodiment, the operation safety of the equipment can be improved.

Description

Technical Field

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

[0002] A ventricular assist device is a device that provides support or assistance to patients suffering from heart-related diseases, such as heart failure patients, and is used to assist the heart in pumping blood to other parts of the body. When the ventricular assist device operates in the heart, thrombus attachment is likely to occur, which hinders the normal operation of the ventricular assist device and affects the life, health, and safety of the patient. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a control system and device for a ventricular assist device to improve the operating safety of the ventricular assist device. The specific technical solutions are as follows: In a first aspect, the embodiments of this application provide a control system for a ventricular assist device. The system includes a ventricular assist device and a control device. The ventricular assist device is implanted into the patient's heart through a percutaneous intervention method to assist the patient's heart in pumping blood. The control device is used to control the operation of the ventricular assist device. When the control device controls the operation, the following disturbance control method is executed: When it is acquired that there is thrombus attachment to the ventricular assist device, a disturbance control mode is triggered; In response to the disturbance control mode, a disturbance control signal is generated; wherein, the disturbance control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the drive component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the drive component to generate reverse rotation; Determine the signal frequency of the disturbance control signal, and based on the disturbance control signal according to the signal frequency, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

[0004] In an embodiment of this application, the above determination of the signal frequency of the disturbance control signal includes: Acquire a target level representing the degree of thrombus attachment, and determine a first frequency corresponding to the target level; Based on the first frequency, determine the signal frequency of the disturbance control signal.

[0005] In an embodiment of this application, the above determination of the signal frequency of the disturbance control signal based on the first frequency includes: Acquire the current real-time heart rate of the patient, and determine a second frequency that is positively correlated with the current real-time heart rate; Based on the first frequency and the second frequency, determine the signal frequency of the disturbance control signal.

[0006] In one embodiment of the present application, determining the second frequency that is positively correlated with the current real-time heart rate includes: Determining a heart rate deviation ratio based on the current real-time heart rate and a reference heart rate; Calculating a second frequency based on the first frequency and the heart rate deviation ratio.

[0007] In one embodiment of the present application, determining the signal frequency of the perturbation control signal based on the first frequency and the second frequency includes: Obtaining a current displacement value of a pumping component of the ventricular assist device, and determining a third frequency that is positively correlated with the current displacement value; Determining the signal frequency of the perturbation control signal based on the first frequency, the second frequency, and the third frequency.

[0008] Second, an embodiment of the present application provides a control device for a ventricular assist device, and the device includes: A mode trigger module, configured to trigger a perturbation control mode when it is acquired that there is thrombus attachment to the ventricular assist device; A signal generation module, configured to generate a perturbation control signal in response to the perturbation control mode; wherein, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence, the forward rotation sequence is used to control a driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation; A device control module, configured to determine the signal frequency of the perturbation control signal, and control the operation of the ventricular assist device based on the perturbation control signal according to the signal frequency, so that the ventricular assist device realizes periodic swinging operation.

[0009] In one embodiment of the present application, the above-mentioned device control module includes: A first frequency determination sub-module, configured to obtain a target level characterizing the degree of thrombus attachment, and determine a first frequency corresponding to the target level; A second frequency determination sub-module, configured to determine the signal frequency of the perturbation control signal based on the first frequency.

[0010] In one embodiment of the present application, the above-mentioned second frequency determination sub-module includes: A first frequency determination unit, configured to obtain the current real-time heart rate of a patient, and determine a second frequency that is positively correlated with the current real-time heart rate; A second frequency determination unit, configured to determine the signal frequency of the perturbation control signal based on the first frequency and the second frequency.

[0011] In one embodiment of the present application, the above-mentioned first frequency determination unit is specifically configured to determine a heart rate deviation ratio based on the current real-time heart rate and the reference heart rate; and calculate a second frequency based on the first frequency and the heart rate deviation ratio.

[0012] In one embodiment of the present application, the above-mentioned second frequency determination unit is specifically configured to obtain the current displacement value of the pumping assembly of the ventricular assist device, determine a third frequency that is positively correlated with the current displacement value; and determine the signal frequency of the perturbation control signal based on the first frequency, the second frequency, and the third frequency.

[0013] In a third aspect, an embodiment of the present application provides an electronic medical device, including a processor, a communication interface, a memory, and a communication bus. Among them, the processor, the communication interface, and the memory complete communication with each other through the communication bus; The memory is used to store a computer program; The processor is configured to implement the perturbation control method described in the first aspect above when executing the program stored on the memory.

[0014] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, it implements the perturbation control method described in the first aspect above.

[0015] As can be seen from the above, by applying the solution provided in the embodiment of the present application, in the case where there is thrombus attachment on the ventricular assist device, the perturbation control mode is triggered, and the control signal formed by alternately combining the forward rotation sequence and the reverse rotation sequence is used to control the ventricular assist device according to a certain signal frequency, so as to realize the periodic swing of the ventricular assist device, thereby destroying the thrombus attachment interface, effectively reducing thrombus attachment, and improving the safety of the operation of the ventricular assist device.

[0016] Of course, when implementing any product or method of the present application, it is not necessarily required to achieve all the above-mentioned advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application, and those of ordinary skill in the art can also obtain other embodiments based on these drawings.

[0018] Figure 1a It is a schematic structural diagram of the control system of the first ventricular assist device provided by the embodiment of the present application; Figure 1b It is a schematic structural diagram of a left ventricular assist device provided by the embodiment of the present application; Figure 2a Schematic diagram of the first disturbance control method provided by an embodiment of the present application; Figure 2b Brief schematic diagram of a disturbance control signal provided by an embodiment of the present application; Figure 3 Schematic diagram of the second disturbance control method provided by an embodiment of the present application; Figure 4 Schematic diagram of the third disturbance control method provided by an embodiment of the present application; Figure 5 Schematic diagram of the fourth disturbance control method provided by an embodiment of the present application; Figure 6 Schematic diagram of the structure of the control system of the second ventricular assist device provided by an embodiment of the present application; Figure 7 Schematic diagram of the structure of a control device of a ventricular assist device provided by an embodiment of the present application; Figure 8 Schematic diagram of the structure of an electronic medical device provided by an embodiment of the present application. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the scope of protection of the present application.

[0020] Before introducing the embodiments of the present application, first, in conjunction with Figure 1a , the control system of the embodiments of the present application will be described.

[0021] The control system includes a control device 11 and a ventricular assist device 12. Among them, the ventricular assist device 12 is implanted into the patient's heart through a percutaneous intervention method to assist the patient's heart in pumping blood; the control device 11 is used to control the operation of the ventricular assist device 12.

[0022] Since the ventricular assist device 12 operates in the heart and is in long-term contact with blood, it is easy to cause platelet adhesion and microthrombus formation, affecting the operation efficiency of the ventricular assist device and possibly causing complications such as hemolysis and thrombus detachment. Therefore, it is urgent to avoid the risk of thrombus attachment to the ventricular assist device to ensure the operation safety of the ventricular assist device.

[0023] The above-mentioned ventricular assist device can be a left ventricular assist device or a right ventricular assist device. Taking the left ventricular assist device as an example, the above-mentioned ventricular assist device will be described. Refer to Figure 1b ,Figure 1b The structural schematic diagram of a left ventricular assist device is shown.

[0024] Figure 1b The shown ventricular assist device is a left ventricular catheter pump, which is used to cross the aortic valve and pump the left ventricular blood into the aorta to assist the heart in pumping blood. Of course, in addition to the left ventricular catheter pump, the ventricular catheter pump of the present application can also be a right ventricular catheter pump, a bi-ventricular catheter pump, etc., and there is no limitation thereto.

[0025] The left ventricular catheter pump includes a motor 101, an impeller 102, a blood outlet 103, and a blood inlet 104. The high-speed rotation of the motor 101 drives the impeller 102 to rotate, generating suction to pump blood from the blood inlet 104 into the blood outlet 103. The blood inlet 104 is located in the patient's left ventricle, and the blood outlet 103 is located in the patient's aorta, so as to assist the patient's heart in pumping blood.

[0026] The following describes the disturbance control scheme adopted by the control device.

[0027] See Figure 2a , Figure 2a which is a schematic flow diagram of the first disturbance control method provided by an embodiment of the present application. The above method includes the following steps S201 - S203.

[0028] Step S201: When it is acquired that there is thrombus attachment on the ventricular assist device, trigger the disturbance control mode.

[0029] Whether there is thrombus attachment on the ventricular assist device can be detected by a thrombus detection device. When the thrombus detection device detects a thrombus detection result of thrombus attachment, it can send the above thrombus detection result to the control device. The thrombus detection process of the thrombus detection device can be seen in subsequent embodiments and will not be elaborated here.

[0030] When the control device receives the detection result indicating thrombus attachment sent by the thrombus detection device, it triggers the disturbance control mode. The disturbance control mode aims to achieve the self-pulsating swing disturbance of the ventricular assist device to reduce thrombus attachment.

[0031] Step S202: In response to the disturbance control mode, generate a disturbance control signal.

[0032] The above disturbance control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the drive component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the drive component to generate reverse rotation. The above forward rotation sequence and reverse rotation sequence can both be pulse sequences.

[0033] Combined with Figure 2b to illustrate the above disturbance control signal, Figure 2bThe signal segment marked as a is the forward rotation sequence, and the signal segment marked as b is the reverse rotation sequence. The duration of the forward rotation sequence and the duration of the reverse rotation sequence can be the same.

[0034] Step S203: Determine the signal frequency of the perturbation control signal, and based on the signal frequency and the perturbation control signal, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

[0035] The signal frequency of the above-mentioned perturbation control signal can be pre-determined.

[0036] The signal frequency can also be determined in real time. For the implementation method of determining the signal frequency in real time, reference can be made to the subsequent Figure 3 corresponding embodiments, which will not be elaborated here.

[0037] Since the perturbation control signal includes a forward rotation pulse sequence and a reverse rotation pulse sequence, and these two types of pulse sequences are alternately combined, when the ventricular assist device is controlled based on the above-mentioned perturbation control signal at a certain frequency, the ventricular assist device shows periodic and alternating operation of forward rotation pulses and reverse rotation pulses. And when the ventricular assist device operates periodically and with alternating forward rotation pulses and reverse rotation pulses, the ventricular assist device shows periodic swinging. Affected by the inertia of the ventricular assist device itself, during the periodic swinging process, the ventricular assist device generates a certain degree of vibration, thereby destroying the thrombus attachment interface and effectively reducing thrombus attachment.

[0038] As can be seen from the above, by applying the solution provided in this embodiment, in the case where there is thrombus attachment on the ventricular assist device, the perturbation control mode is triggered, and the control signal formed by alternately combining the forward rotation sequence and the reverse rotation sequence is used to control the ventricular assist device at a certain signal frequency, so as to realize the periodic swinging of the ventricular assist device, thereby destroying the thrombus attachment interface, effectively reducing thrombus attachment, and improving the safety of the operation of the ventricular assist device.

[0039] The signal frequency mentioned in the corresponding embodiment of FIG. 2 described above determines the swinging frequency of the ventricular assist device and is related to the effect of reducing thrombus attachment. In addition to being determined by the method mentioned in the corresponding embodiment of FIG. 2 described above, the signal frequency can also be determined according to the following steps S303-S304. Based on this, refer to Figure 3 , Figure 3 which is a schematic flowchart of the third perturbation control method provided by the embodiment of the present application.

[0040] Step S301: When it is obtained that there is thrombus attachment on the ventricular assist device, trigger the perturbation control mode.

[0041] Step S302: In response to the perturbation control mode, generate a perturbation control signal.

[0042] Among them, the above-mentioned perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation.

[0043] The above steps S301 - S302 are the same as the foregoing steps S201 - S202, and will not be elaborated here.

[0044] Step S303: Obtain a target level representing the degree of thrombus attachment, and determine a first frequency corresponding to the target level.

[0045] The above target level represents the degree of thrombus attachment. When the target level is higher, it indicates more thrombus attachment; when the target level is lower, it indicates less thrombus attachment.

[0046] The target level can be evaluated by a thrombus detection device using a preset algorithm. For example, by using the detection parameters of each preset thrombus level to detect the back electromotive force fluctuation time series signal of the ventricular assist device, and evaluating and determining the corresponding thrombus level of the current ventricular assist device, which is the target level. The thrombus detection device can send the detected target level to the control device.

[0047] The first frequency is the frequency corresponding to the target level. When the target level is higher, it indicates a relatively heavy current thrombus attachment degree, and the first frequency is relatively higher; when the target level is lower, it indicates a relatively light current thrombus attachment degree, and the first frequency is relatively lower.

[0048] One implementation manner for determining the first frequency is: pre - determine the correspondence between each thrombus attachment level and the signal frequency, and according to the above correspondence, determine the signal frequency corresponding to the target level as the first frequency.

[0049] Step S304: Based on the first frequency, determine the signal frequency of the perturbation control signal.

[0050] One implementation manner for determining the signal frequency is: calculate the sum value of the first frequency and a preset error, and determine it as the signal frequency of the perturbation control signal.

[0051] For other implementation manners of determining the signal frequency, reference can be made to the subsequent Figure 4 corresponding embodiments, which will not be elaborated here.

[0052] Step S305: According to the signal frequency, based on the perturbation control signal, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

[0053] The above step S305 is the same as the foregoing step S203, and will not be elaborated here.

[0054] As can be seen from the above, since the signal frequency is determined based on the target level of thrombus attachment, the signal frequency matches the current thrombus attachment situation. In this way, controlling the operation of the ventricular assist device according to the above signal frequency makes the swing frequency of the ventricular assist device fit the current real-time environment, effectively reducing thrombus attachment.

[0055] The foregoing Figure 3 In the corresponding embodiment of step S304, in addition to the method mentioned above for determining the signal frequency, the following steps S404-S405 can also be used to implement it. Based on this, see Figure 4 , Figure 4 is a schematic flowchart of the third perturbation control method provided by the embodiment of the present application. The above method includes the following steps S401-S406.

[0056] Step S401: When it is obtained that there is thrombus attachment to the ventricular assist device, trigger the perturbation control mode.

[0057] Step S402: In response to the perturbation control mode, generate a perturbation control signal.

[0058] Among them, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation.

[0059] Step S403: Obtain the target level representing the degree of thrombus attachment, and determine the first frequency corresponding to the target level.

[0060] The above steps S401-S403 are the same as the foregoing steps S301-S303, and will not be elaborated here.

[0061] Step S404: Obtain the current real-time heart rate of the patient, and determine the second frequency that is positively correlated with the current real-time heart rate.

[0062] The first implementation manner for determining the second frequency is: calculate the product of the current real-time heart rate and the first preset coefficient as the second frequency. The above first preset coefficient is preset.

[0063] The second implementation manner for determining the second frequency is: based on the current real-time heart rate and the reference heart rate, determine the heart rate deviation ratio; based on the first frequency and the heart rate deviation ratio, calculate the second frequency.

[0064] The above reference heart rate is preset and represents the normal heart rate value.

[0065] One implementation manner for calculating the heart rate deviation ratio is: calculate the difference between the current real-time heart rate and the reference heart rate, and calculate the ratio of the above difference to the reference heart rate as the heart rate deviation ratio.

[0066] One implementation of calculating the second frequency is: calculating the product of the first frequency and the heart rate deviation ratio as the second frequency.

[0067] Step S405: Based on the first frequency and the second frequency, determine the signal frequency of the perturbation control signal.

[0068] One implementation of determining the signal frequency is: calculating the sum value between the first frequency and the second frequency as the signal frequency of the perturbation control signal.

[0069] Step S406: According to the signal frequency, based on the perturbation control signal, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

[0070] The above step S406 is the same as the previous step S305 and will not be elaborated here.

[0071] As can be seen from the above, in this embodiment, the current real-time heart rate of the patient is also combined, so that the signal frequency not only matches the degree of thrombus attachment, but also matches the current real-time heart rate. In this way, controlling the ventricular assist device according to the above signal frequency not only fits the current thrombus condition, but also is related to the real-time physiological condition of the patient, thereby enhancing the thrombus stripping effect and further improving the operation safety of the ventricular assist device.

[0072] The foregoing Figure 4 In the corresponding embodiment, in addition to the method mentioned above for determining the signal frequency, it can also be determined according to the following steps S505-S506. Based on this, see Figure 5 , Figure 5 is a schematic flowchart of the fourth perturbation control method provided by the embodiment of the present application. The above method includes the following steps S501-S507.

[0073] Step S501: When it is obtained that there is thrombus attachment to the ventricular assist device, trigger the perturbation control mode.

[0074] Step S502: In response to the perturbation control mode, generate a perturbation control signal.

[0075] Among them, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation.

[0076] Step S503: Obtain the target level representing the degree of thrombus attachment, and determine the first frequency corresponding to the target level.

[0077] Step S504: Obtain the current real-time heart rate of the patient, and determine the second frequency that is positively correlated with the current real-time heart rate.

[0078] The above steps S501 - S504 are the same as the foregoing steps S401 - S404, and will not be elaborated herein.

[0079] Step S505: Obtain the current displacement value of the pumping assembly of the ventricular assist device, and determine a third frequency that is positively correlated with the current displacement value.

[0080] The above current displacement value characterizes the current displacement information of the pumping assembly, and the above pumping assembly is an impeller. The above current displacement value can be detected by a position sensor.

[0081] The first implementation manner of calculating the third frequency is: calculate the product of the current displacement value and a second preset coefficient as the third frequency.

[0082] The second implementation manner of calculating the third frequency is: calculate the difference between the current displacement value and a reference displacement value, then calculate the ratio of the above difference to the reference displacement value, and determine the frequency corresponding to the above ratio as the third frequency.

[0083] Step S506: Based on the first frequency, the second frequency, and the third frequency, determine the signal frequency of the disturbance control signal.

[0084] One implementation manner of determining the signal frequency is: calculate the sum value of the first frequency, the second frequency, and the third frequency as the signal frequency of the disturbance control signal.

[0085] Step S507: Control the operation of the ventricular assist device based on the disturbance control signal according to the signal frequency, so that the ventricular assist device realizes periodic swing operation.

[0086] The above step S507 is the same as the foregoing step S406, and will not be elaborated herein.

[0087] As can be seen from the above, in this embodiment, the current displacement information of the pumping assembly of the ventricular assist device is also combined, so that the signal frequency not only matches the thrombus attachment degree and the real - time heart rate, but also matches the current displacement information of the device. In this way, controlling the ventricular assist device according to the above signal frequency not only fits the current thrombus condition and the patient's physiological condition, but also is related to the real - time operation condition of the device, further enhancing the thrombus stripping effect and better improving the operation safety of the ventricular assist device.

[0088] In the control system provided by the embodiment of the present application, in addition to including a control device and a ventricular assist device, it may also include a thrombus detection device. As Figure 6 shown. Figure 6 It is a schematic structural diagram of the second control system provided by the embodiment of the present application.

[0089] The ventricular assist device 602 operates inside the patient's heart and is used to assist the patient's heart in pumping blood.

[0090] The thrombus detection device 601 detects whether there is thrombus attachment on the ventricular assist device 602, and when it detects the existence of thrombus attachment, it sends the thrombus detection result to the control device 603.

[0091] When the control device 603 receives the result indicating the existence of thrombus attachment on the ventricular assist device, it triggers the perturbation control mode, so that the ventricular assist device 602 realizes periodic swinging operation to break the thrombus attachment surface, reduce thrombus attachment, and improve the operating safety of the ventricular assist device 602.

[0092] The control device 603 and the thrombus detection device 601 can be integrated into the same electronic medical device.

[0093] Corresponding to the above control system method of the ventricular assist device, an embodiment of the present application also provides a control device for the ventricular assist device.

[0094] See Figure 7 , Figure 7 which is a schematic structural diagram of a control device for a ventricular assist device provided by an embodiment of the present application. The above device includes: The mode trigger module 701 is used to trigger the perturbation control mode when obtaining the situation indicating the existence of thrombus attachment on the ventricular assist device; The signal generation module 702 is used to generate a perturbation control signal in response to the perturbation control mode; wherein, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence, the forward rotation sequence is used to control the drive component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the drive component to generate reverse rotation; The device control module 703 is used to determine the signal frequency of the perturbation control signal, and based on the perturbation control signal according to the signal frequency, control the operation of the ventricular assist device, so that the ventricular assist device realizes periodic swinging operation.

[0095] In an embodiment of the present application, the above device control module 703 includes: The first frequency determination sub-module is used to obtain the target level characterizing the degree of thrombus attachment and determine the first frequency corresponding to the target level; The second frequency determination sub-module is used to determine the signal frequency of the perturbation control signal based on the first frequency.

[0096] In an embodiment of the present application, the above second frequency determination sub-module includes: A first frequency determination unit, configured to obtain the current real-time heart rate of a patient and determine a second frequency that is positively correlated with the current real-time heart rate; A second frequency determination unit, configured to determine the signal frequency of the perturbation control signal based on the first frequency and the second frequency.

[0097] In one embodiment of the present application, the above-mentioned first frequency determination unit is specifically configured to determine a heart rate deviation ratio based on the current real-time heart rate and a reference heart rate; and calculate the second frequency based on the first frequency and the heart rate deviation ratio.

[0098] In one embodiment of the present application, the above-mentioned second frequency determination unit is specifically configured to obtain the current displacement value of the pumping assembly of the ventricular assist device, determine a third frequency that is positively correlated with the current displacement value; and determine the signal frequency of the perturbation control signal based on the first frequency, the second frequency, and the third frequency.

[0099] Corresponding to the control of the above-mentioned ventricular assist device, an embodiment of the present application provides an electronic medical device. Refer to Figure 8 , Figure 8 which is a schematic structural diagram of an electronic medical device provided by an embodiment of the present application. The above-mentioned electronic medical device includes a processor 801, a communication interface 802, a memory 803, and a communication bus 804. Among them, the processor 801, the communication interface 802, and the memory 803 communicate with each other through the communication bus 804; The memory 803 is used to store a computer program; When the processor 801 is configured to execute the program stored on the memory 803, it implements the steps of the perturbation control method of the above-mentioned ventricular catheter pump.

[0100] The communication bus mentioned in the above-mentioned controller may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, only a thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0101] The communication interface is used for communication between the above-mentioned controller and other devices.

[0102] The memory may include a Random Access Memory (RAM), or may also include a Non-Volatile Memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located far from the aforementioned processor.

[0103] The aforementioned processor may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0104] In another embodiment provided by the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned disturbance control method provided by the embodiments of the present application is implemented.

[0105] In another embodiment provided by the present application, there is also provided a computer program product containing instructions, which when running on a computer, causes the computer to implement the above-mentioned disturbance control method provided by the embodiments of the present application when executed.

[0106] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

[0107] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article, or device that includes the element.

[0108] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the device, electronic medical device, and computer-readable storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments.

[0109] The above are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are all included in the protection scope of the present application.

Claims

1. A control system for a ventricular assist device, characterized in that, The system includes a ventricular assist device and a control device. The ventricular assist device is implanted into the patient's heart through a percutaneous intervention method to assist the patient's heart in pumping blood. The control device is used to control the operation of the ventricular assist device. When the control device controls the operation, it executes the following perturbation control method: When it is acquired that there is thrombus attachment on the ventricular assist device, a perturbation control mode is triggered; In response to the perturbation control mode, a perturbation control signal is generated. Wherein, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation; Determine the signal frequency of the perturbation control signal, and based on the perturbation control signal according to the signal frequency, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

2. The system according to claim 1, wherein The determining the signal frequency of the perturbation control signal includes: Acquire a target level characterizing the degree of thrombus attachment, and determine a first frequency corresponding to the target level; Based on the first frequency, determine the signal frequency of the perturbation control signal.

3. The system according to claim 2, wherein The determining the signal frequency of the perturbation control signal based on the first frequency includes: Acquire the current real-time heart rate of the patient, and determine a second frequency that is positively correlated with the current real-time heart rate; Based on the first frequency and the second frequency, determine the signal frequency of the perturbation control signal.

4. The system according to claim 3, wherein The determining the second frequency that is positively correlated with the current real-time heart rate includes: Based on the current real-time heart rate and the reference heart rate, determine the heart rate deviation ratio; Based on the first frequency and the heart rate deviation ratio, calculate the second frequency.

5. The system according to claim 3 or 4, characterized in that, The determining the signal frequency of the perturbation control signal based on the first frequency and the second frequency includes: Acquire the current displacement value of the pumping component of the ventricular assist device, and determine a third frequency that is positively correlated with the current displacement value; Based on the first frequency, the second frequency and the third frequency, determine the signal frequency of the perturbation control signal.

6. A control device for a ventricular assist device, characterized in that, The device includes: A mode trigger module, which is used to trigger a perturbation control mode when it is acquired that there is thrombus attachment on the ventricular assist device; A signal generation module, which is used to generate a perturbation control signal in response to the perturbation control mode. Wherein, the perturbation control signal is a control signal formed by alternately combining a forward rotation sequence and a reverse rotation sequence. The forward rotation sequence is used to control the driving component of the ventricular assist device to generate forward rotation, and the reverse rotation sequence is used to control the driving component to generate reverse rotation; An equipment control module, which is used to determine the signal frequency of the perturbation control signal, and based on the perturbation control signal according to the signal frequency, control the operation of the ventricular assist device so that the ventricular assist device realizes periodic swinging operation.

7. The device according to claim 6, characterized in that, The equipment control module includes: A first frequency determination sub-module, which is used to acquire a target level characterizing the degree of thrombus attachment and determine a first frequency corresponding to the target level; A second frequency determination sub-module, which is used to determine the signal frequency of the perturbation control signal based on the first frequency.

8. The device according to claim 7, characterized in that, The second frequency determination sub-module includes: A first frequency determination unit, configured to obtain the current real-time heart rate of a patient and determine a second frequency that is positively correlated with the current real-time heart rate; A second frequency determination unit, configured to determine the signal frequency of the perturbation control signal based on the first frequency and the second frequency.

9. The device according to claim 8, wherein The first frequency determination unit is specifically configured to determine a heart rate deviation ratio based on the current real-time heart rate and a reference heart rate; and calculate the second frequency based on the first frequency and the heart rate deviation ratio.

10. The device according to claim 8 or 9, characterized in that, The second frequency determination unit is specifically configured to obtain the current displacement value of a pumping component of the ventricular assist device, determine a third frequency that is positively correlated with the current displacement value; and determine the signal frequency of the perturbation control signal based on the first frequency, the second frequency, and the third frequency.

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