Pulse control system and device of ventricular catheter pump

Abstract

The embodiment of the invention provides a pulse control system and device of a ventricular catheter pump, and relates to the technical field of artificial hearts. When controlling the ventricular catheter pump, the pulse control equipment executes the following pulse control method: applying a pulse control signal to a driving assembly of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal containing a pulse rotating speed; and according to the pulse control signal, the driving assembly is controlled to alternately operate according to a set operation rotating speed and a pulse rotating speed, so that the ventricular catheter pump generates periodic pulse jitter. By applying the scheme provided by the embodiment, thrombosis is effectively prevented, and the operation safety of the ventricular catheter pump is improved.

Description

Technical Field

[0001] The present application relates to the field of artificial heart technology, and in particular to a pulse control system and device of a ventricular catheter pump. Background Art

[0002] The ventricular catheter pump is a micro axial flow pump in the blood vessels that supports the patient's blood circulation system. The catheter pump deployed on the left side of the heart is called the left ventricular catheter pump. When the left ventricular catheter pump is in operation, it pumps the blood from the left ventricle into the aorta; the catheter pump deployed on the right side of the heart is called the right ventricular catheter pump. When the right ventricular catheter pump is in operation, it pumps the blood from the inferior vena cava through the right atrium and right ventricle until it reaches the pulmonary artery. The ventricular catheter pump is used to achieve heart-assisted pumping to better restore the heart pumping function of patients with heart failure.

[0003] However, the insertion of a ventricular catheter pump changes the hemodynamics of the heart, increasing the blood stagnation time around the ventricular catheter pump, leading to the appearance of thrombus. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide a pulse control system and device for a ventricular catheter pump to effectively prevent thrombosis and significantly improve the operational safety of the ventricular catheter pump. The specific technical solution is as follows: In a first aspect, an embodiment of the present application provides a pulse control system of a ventricular catheter pump, the system comprising a ventricular catheter pump and a pulse control device, the ventricular catheter pump being implanted in a patient's heart by percutaneous intervention, the pulse control device being located outside the patient's body and connected to the ventricular catheter pump, the pulse control device performing the following pulse control method when controlling the ventricular catheter pump: Applying a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; According to the pulse control signal, the driving component is controlled to operate alternately at a set operating speed and a pulse speed, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0005] In one embodiment of the present application, the step of applying a pulse control signal to the driving assembly of the ventricular catheter pump includes: Determining pulse control parameters that match the current setting gear of the ventricular catheter pump, wherein the pulse control parameters include a pulse period and a pulse speed; Based on the pulse control parameter, a pulse control signal is generated and applied to a drive component of the ventricular catheter pump.

[0006] In one embodiment of the present application, before generating a pulse control signal based on the pulse control parameter, the method further includes: Acquire the actual operating current of the driving component, and determine a current change parameter characterizing the time sequence fluctuation change of the actual operating current; Determining a compensation parameter of the pulse control parameter based on the current change parameter; Compensating the pulse control parameter according to the compensation parameter to obtain a compensated pulse control parameter; The generating a pulse control signal based on the pulse control parameter includes: generating a pulse control signal based on the compensated pulse control parameter.

[0007] In one embodiment of the present application, before determining the compensation parameter of the pulse control parameter based on the current change parameter, the method further includes: Determining whether the current change parameter is within a preset abnormal current change range; If yes, the step of determining the compensation parameter of the pulse control parameter based on the current change parameter is performed.

[0008] In one embodiment of the present application, before applying a periodic pulse control signal to the driving component of the ventricular catheter pump, it also includes: Determining whether the current setting gear of the ventricular catheter pump is greater than a preset critical gear; If not, executing the step of applying a pulse control signal to the driving assembly of the ventricular catheter pump; If yes, the drive assembly is controlled according to the set operating speed corresponding to the currently set gear.

[0009] In one embodiment of the present application, the ventricular catheter pump is a right ventricular catheter pump.

[0010] In a second aspect, an embodiment of the present application provides a pulse control device for a ventricular catheter pump, which is applied to a pulse control device in a pulse control system, wherein the pulse control system further comprises a ventricular catheter pump, which is implanted in the patient's heart through percutaneous intervention, and the pulse control device is located outside the patient's body and connected to the ventricular catheter pump, wherein the device comprises: A signal applying module, used for applying a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; A pulse control module is used to control the driving component to operate alternately according to a set operating speed and a pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0011] In one embodiment of the present application, the signal applying module includes: A first parameter determination submodule, used to determine a pulse control parameter that matches the current setting gear of the ventricular catheter pump, wherein the pulse control parameter includes a pulse period and a pulse speed; The signal applying submodule is used to generate a pulse control signal based on the pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

[0012] In one embodiment of the present application, the signal applying module further includes: A second parameter determination submodule is used to obtain the actual operating current of the driving component and determine a current change parameter characterizing the timing fluctuation change of the actual operating current before the signal application submodule; A third parameter determination submodule, configured to determine a compensation parameter of the pulse control parameter based on the current change parameter; A parameter compensation submodule, used for compensating the pulse control parameter according to the compensation parameter to obtain the compensated pulse control parameter; The signal applying submodule is specifically used to generate a pulse control signal based on the compensated pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

[0013] In one embodiment of the present application, the signal applying module further includes: The parameter judgment submodule is used to judge whether the current change parameter is within a preset abnormal current change range before the third parameter determination submodule; if yes, trigger the third parameter determination submodule.

[0014] In one embodiment of the present application, the above-mentioned device further includes: A gear determination module, used for determining whether the current gear setting of the ventricular catheter pump is greater than a preset critical gear before the signal application module; if yes, triggering the signal application module, and if no, triggering the speed control module; The speed control module is used to control the driving component according to the set operating speed corresponding to the current set gear position.

[0015] In one embodiment of the present application, the ventricular catheter pump is a right ventricular catheter pump.

[0016] As can be seen from the above, by applying the solution provided in the embodiment of the present application, the pulse control device applies a pulse control signal to the driving component of the ventricular catheter pump, and according to the above pulse control signal, controls the driving component to alternately operate according to the set operating speed and the pulse speed. Since the pulse speed is greater than the set operating speed, and the pulse control signal is periodic, the ventricular catheter pump generates periodic pulse jitter, thereby minimizing blood flow stagnation around the ventricular catheter pump, effectively preventing thrombosis, and significantly improving the operating safety of the ventricular catheter pump.

[0017] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0019] Figure 1a A schematic diagram of the structure of a pulse control system provided in an embodiment of the present application; Figure 1b A schematic diagram of the structure of a right ventricular catheter pump provided in an embodiment of the present application; Figure 2a A schematic flow chart of a first pulse control method provided in an embodiment of the present application; Figure 2b A schematic diagram of a pulse-controlled speed signal provided in an embodiment of the present application; Figure 3 A schematic flow chart of a second pulse control method provided in an embodiment of the present application; Figure 4 A schematic flow chart of a third pulse control method provided in an embodiment of the present application; Figure 5 A schematic flow chart of a fourth pulse control method provided in an embodiment of the present application; Figure 6 A schematic structural diagram of a pulse control device for a ventricular catheter pump provided in an embodiment of the present application; Figure 7 A schematic structural diagram of a second pulse control device for a ventricular catheter pump provided in an embodiment of the present application; Figure 8 A schematic structural diagram of a third pulse control device for a ventricular catheter pump provided in an embodiment of the present application; Fig. 9A schematic structural diagram of a fourth pulse control device for a ventricular catheter pump provided in an embodiment of the present application; Fig.10 A schematic structural diagram of a fifth pulse control device for a ventricular catheter pump provided in an embodiment of the present application; Fig.11 A schematic diagram of the structure of an electronic medical device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0021] Before introducing the embodiments of the present application, first, Figure 1a , the structure of the pulse control system provided in this application is explained.

[0022] The pulse control system includes a ventricular catheter pump 11 and a pulse control device 12 .

[0023] The ventricular catheter pump 11 is implanted in the patient's heart through percutaneous intervention, and the pulse control device 12 is located outside the patient's body and connected to the ventricular catheter pump 11 .

[0024] In one embodiment of the present application, the ventricular catheter pump is a right ventricular catheter pump, such as Figure 1b As shown, Figure 1b A schematic diagram of the structure of a right ventricular catheter pump is shown. Figure 1b The ventricular catheter pump shown is a right ventricular catheter pump, which pumps blood from the inferior vena cava to the pulmonary artery through the right atrium and the right ventricle.

[0025] The right ventricular catheter pump includes a driving component 101, a pumping component 102, a blood inlet 103, and a bleeding port 104. The driving component 101 rotates at high speed to drive the pumping component 102 to rotate, thereby generating thrust to pump blood from the blood inlet 103 to the bleeding port 104. The blood inlet 103 is located in the inferior vena cava of the patient, and the bleeding port 104 is located in the pulmonary artery of the patient, thereby assisting the patient's heart in pumping blood.

[0026] The right ventricular catheter pump accelerates the blood in the inferior vena cava and pumps it into the pulmonary artery. After a large number of experimental studies, it was found that due to the slow flow rate of venous blood itself, after the right ventricular catheter pump is implanted in the human body, the blood stagnation time around the right ventricular catheter pump is relatively longer, and thrombosis is more likely to occur. The embodiment of the present application adopts pulse control for the right ventricular catheter pump, which can significantly improve the operating safety of the right ventricular catheter pump.

[0027] When the pulse control device controls the ventricular catheter pump, the following Figure 2a Corresponding steps S201-S202. Based on this, see Figure 2a , Figure 2a This is a flow chart of a first pulse control method provided in an embodiment of the present application. The method includes the following steps S201-S202.

[0028] Step S201: applying a pulse control signal to a driving component of a ventricular catheter pump.

[0029] The driving assembly of the ventricular catheter pump refers to the assembly used to drive the ventricular catheter pump to rotate, and the driving assembly mainly includes a motor. The driving assembly is the core assembly of the ventricular catheter pump. The high-speed rotation of the driving assembly drives the pumping assembly to rotate, and the blood is pumped from the blood inlet to the bleeding outlet.

[0030] The pulse control signal is a pulse signal that is periodic and includes a pulse rotation speed. For example, the pulse signal period is greater than the shortest duration of the system response, and the pulse rotation speed is greater than a preset rotation speed threshold.

[0031] The pulse control signal may be generated in advance, that is, the signal parameters of the pulse control signal are preset, and the preset signal parameters are converted into the pulse control signal. In this case, the pulse speed may be set to be greater than the maximum speed of the ventricular catheter pump.

[0032] The above pulse control signal can also be generated in real time. For real-time generation of pulse control signal, please refer to the following Figure 3 The corresponding embodiments are not described in detail here.

[0033] Step S202: According to the pulse control signal, the driving component is controlled to operate alternately according to the set operating speed and the pulse speed, so that the ventricular catheter pump generates periodic pulse jitter.

[0034] The set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump. The ventricular catheter pump includes multiple gears, each of which corresponds to a different operating speed. The current set gear refers to the gear currently set for the ventricular catheter pump, and the set operating speed represents the current speed information of the ventricular catheter pump.

[0035] The above pulse speed is greater than the set running speed. The speed signal of the set running speed and the pulse speed alternating running is as follows Figure 2b As shown, Figure 2b The symbol a indicates the pulse speed, the symbol b indicates the set running speed, and the duration corresponding to the set running speed b is a preset number of times the duration corresponding to the pulse speed a. The preset number can be preset, such as the preset number is greater than 10. The pulse speed and the set running speed are based on Figure 2bThe processes shown run alternately.

[0036] When the drive assembly drives the ventricular catheter pump to run alternately at the set operating speed and the pulse speed, periodic pulse jitter will occur. This is because the drive assembly runs at the pulse speed, and the pumping assembly of the ventricular catheter pump will be subjected to axial thrust, causing the pumping assembly to move to a new equilibrium position, but due to inertia, the impeller will not stop at this position immediately, but will continue to move until it reaches a new equilibrium position, forming a pulse jitter, and this cycle will repeat, forming periodic pulse jitter.

[0037] When the ventricular catheter pump produces periodic tremors, it can minimize blood flow stagnation around the ventricular catheter pump and prevent thrombosis as much as possible.

[0038] As can be seen from the above, by applying the solution provided in this embodiment, the pulse control device applies a pulse control signal to the driving component of the ventricular catheter pump, and according to the above pulse control signal, controls the driving component to alternately operate according to the set operating speed and the pulse speed. Since the pulse speed is greater than the set operating speed, and the pulse control signal is periodic, the ventricular catheter pump generates periodic pulse jitter, thereby minimizing blood flow stagnation around the ventricular catheter pump, effectively preventing thrombosis, and significantly improving the operating safety of the ventricular catheter pump.

[0039] In the embodiment corresponding to FIG. 2 above, the pulse control signal may be generated in real time according to the following steps S301-S302. Figure 3 , Figure 3 This is a flow chart of a second pulse control method provided in an embodiment of the present application. The method includes the following steps S301-S303.

[0040] Step S301: Determine the pulse control parameter that matches the current setting gear of the ventricular catheter pump.

[0041] Pulse control parameters may include pulse period, pulse speed, pulse acceleration, pulse deceleration, duty cycle, etc.

[0042] The pulse control parameters are determined in real time based on the current setting gear of the ventricular catheter pump. One implementation method of determining the pulse control is: presetting the control parameters corresponding to each preset gear, and determining the pulse control parameters matching the current setting gear according to the above correspondence.

[0043] Step S302: Generate a pulse control signal based on the pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

[0044] According to a preset signal format, the pulse control parameter is converted into a pulse control signal, thereby generating a pulse control signal.

[0045] Step S303: According to the pulse control signal, the driving component is controlled to operate alternately according to the set operating speed and the pulse speed, so that the ventricular catheter pump generates periodic pulse jitter.

[0046] The set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0047] The above step S303 is the same as the above step S202 and will not be described again.

[0048] From the above, it can be seen that since the pulse control signal is generated dynamically in real time and matches the current setting gear of the ventricular catheter pump, and the current setting gear can reflect the current operating environment, the pulse control signal generated in real time by this embodiment is more suitable for the current real-time operating environment. Then, according to the above pulse control signal, pulse control that is more suitable for the current operating environment can be achieved, thereby improving the control accuracy.

[0049] See also Figure 4 , Figure 4 The third pulse control method provided in the embodiment of the present application is a flow chart, and the method includes the following steps S401-S406.

[0050] Step S401: Determine the pulse control parameter that matches the current setting gear of the ventricular catheter pump.

[0051] The above step S401 is the same as the above step S301 and will not be described again.

[0052] Step S402: Acquire the actual operating current of the driving component, and determine a current variation parameter representing the timing fluctuation of the actual operating current.

[0053] The actual operating current represents the load information of the ventricular catheter pump. When the actual operating current is higher, it means that the load of the ventricular catheter pump is greater; when the actual operating current is lower, it means that the load of the ventricular catheter pump is smaller.

[0054] The current change parameter reflects the current change information of the actual operating current in the time series dimension. The current change parameter can reflect the load change information of the patient's ventricular catheter pump, and the above load change is mainly caused by the dynamic change of the heart environment, so the current change parameter can reflect the dynamic environment change of the heart.

[0055] The current change parameter may include the current change rate, change amplitude, etc. One implementation of determining the current change parameter is: based on the actual operating current corresponding to each time sequence, the current change parameter is calculated according to a preset calculation formula, for example, the difference between two adjacent actual operating currents may be calculated, and the calculated difference is used as the current change parameter.

[0056] Step S403: Determine compensation parameters of the pulse control parameters based on the current change parameters.

[0057] The first implementation method of determining the compensation parameter is: according to the pre-set correspondence between each preset current change parameter and its corresponding compensation parameter, the compensation parameter corresponding to the current change parameter is determined as the compensation parameter of the pulse control parameter.

[0058] The second implementation method for determining the compensation parameter is: first determine whether the current change parameter is within the preset abnormal current change range. If yes, execute the above step S403; if not, end the process, that is, do not execute the step of calculating the compensation parameter, but continue to execute the step of generating a pulse control signal based on the pulse control parameter matching the current set gear of the ventricular catheter pump.

[0059] In this embodiment, the current change parameter is within the preset abnormal current change range, indicating that the current operating current of the ventricular catheter pump is abnormal, reflecting that the patient's heart environment is abnormal, and the main causes of the abnormal heart environment include thrombosis. In this case, by determining the compensation parameters of the pulse control parameters, the pulse control parameters are adjusted in real time to adapt to the abnormal heart environment and achieve precise control.

[0060] Step S404: Compensate the pulse control parameter according to the compensation parameter to obtain the compensated pulse control parameter.

[0061] The compensation parameters include compensation values ​​of parameter items of the pulse control parameters. One implementation of the compensation is: calculating the sum of the pulse control parameters and the compensation parameters to achieve compensation of the pulse control parameters.

[0062] Step S405: Generate a pulse control signal based on the compensated pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

[0063] According to a preset signal format, the compensated pulse control parameter is converted into a pulse control signal, thereby generating a pulse control signal.

[0064] Step S406: According to the pulse control signal, the driving component is controlled to operate alternately according to the set operating speed and the pulse speed, so that the ventricular catheter pump generates periodic pulse jitter.

[0065] The set operating speed is the operating speed corresponding to the current set gear position of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0066] As can be seen from the above, since the pulse control signal is generated based on the compensated pulse control parameter, and the compensation parameter of the pulse control parameter is determined based on the current change parameter, the current change parameter can reflect the dynamic change environment of the heart in real time, then the compensated pulse control parameter can more accurately adapt to the dynamic change environment of the heart. Therefore, according to the above pulse control signal, the pulse control can be more accurately adapted to the current dynamic change environment of the heart, and high-precision adaptive pulse control can be achieved.

[0067] See also Figure 5 , Figure 5 This is a flow chart of a fourth pulse control method provided in an embodiment of the present application. The method includes the following steps S501-S504.

[0068] Step S501: determining whether the current setting gear of the ventricular catheter pump is greater than a preset critical gear.

[0069] If no, execute step S502; if yes, execute step S504.

[0070] The preset critical gear represents the critical gear of the patient's top priority demand change. When the current setting gear is greater than the preset critical gear, it means that the patient's current top priority demand is the demand for high-flow cardiac assist support. This is because a high setting gear means that the patient's current heart function is weak and requires more support from the ventricular catheter pump, so the top priority demand is the demand for high-flow cardiac assist support; when the current setting gear is less than or equal to the preset critical gear, it means that the patient's current top priority demand is the need to prevent thrombosis. Therefore, based on the relationship between the current setting gear and the preset critical gear, the control mechanism of the ventricular catheter pump is determined.

[0071] Step S502: applying a pulse control signal to the driving assembly of the ventricular catheter pump.

[0072] When the currently set gear is less than or equal to the preset critical gear, it means that the patient's top priority is to prevent thrombosis. In this case, the pulse control scheme corresponding to steps S502-S503 is executed.

[0073] The pulse control signal is a periodic pulse signal including a pulse rotation speed.

[0074] Step S503: According to the pulse control signal, the driving component is controlled to operate alternately according to the set operating speed and the pulse speed, so that the ventricular catheter pump generates periodic pulse jitter.

[0075] The set operating speed is the operating speed corresponding to the current set gear position of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0076] Step S504: Control the drive assembly according to the set operating speed corresponding to the currently set gear position.

[0077] When the current setting gear is greater than the preset critical gear, it indicates that the patient's top priority demand is high-flow cardiac assist support. In this case, the solution corresponding to step S504 is executed, that is, the drive assembly is continued to be controlled according to the current setting operating speed, that is, the ventricular catheter pump still operates according to the set operating speed.

[0078] From the above, it can be seen that by applying the solution provided in this embodiment, whether to trigger pulse control is determined by the size relationship between the current set gear of the ventricular catheter pump and the preset critical gear, so that the triggered pulse control can flexibly consider the actual needs of the current heart and realize dynamic triggered pulse control.

[0079] Corresponding to the above-mentioned pulse control system, the embodiment of the present application also provides a pulse control device for a ventricular catheter pump.

[0080] See also Figure 6 , Figure 6 A schematic structural diagram of a pulse control device for a first ventricular catheter pump provided in an embodiment of the present application, which is a pulse control device used in a pulse control system, wherein the pulse control system further comprises a ventricular catheter pump, which is implanted in the patient's heart through percutaneous intervention, and the pulse control device is located outside the patient's body and connected to the ventricular catheter pump. The device comprises: A signal applying module 601 is used to apply a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; The pulse control module 602 is used to control the driving component to operate alternately according to the set operating speed and the pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0081] As can be seen from the above, by applying the solution provided in this embodiment, the pulse control device applies a pulse control signal to the driving component of the ventricular catheter pump, and according to the above pulse control signal, controls the driving component to alternately operate according to the set operating speed and the pulse speed. Since the pulse speed is greater than the set operating speed, and the pulse control signal is periodic, the ventricular catheter pump generates periodic pulse jitter, thereby minimizing blood flow stagnation around the ventricular catheter pump, effectively preventing thrombosis, and significantly improving the operating safety of the ventricular catheter pump.

[0082] See also Figure 7 , Figure 7A schematic diagram of the structure of a second pulse control device for a ventricular catheter pump provided in an embodiment of the present application, the device comprising: The first parameter determination submodule 701 is used to determine the pulse control parameters that match the current setting gear of the ventricular catheter pump, wherein the pulse control parameters include a pulse period and a pulse speed; The signal applying submodule 702 is used to generate a pulse control signal based on the pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

[0083] The pulse control module 703 is used to control the driving component to operate alternately according to the set operating speed and the pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0084] From the above, it can be seen that since the pulse control signal is generated dynamically in real time and matches the current setting gear of the ventricular catheter pump, and the current setting gear can reflect the current operating environment, the pulse control signal generated in real time by this embodiment is more suitable for the current real-time operating environment. Then, according to the above pulse control signal, pulse control that is more suitable for the current operating environment can be achieved, thereby improving the control accuracy.

[0085] See also Figure 8 , Figure 8 A schematic diagram of the structure of a third pulse control device for a ventricular catheter pump provided in an embodiment of the present application, the device comprising: The first parameter determination submodule 801 is used to determine the pulse control parameters that match the current setting gear of the ventricular catheter pump, wherein the pulse control parameters include a pulse period and a pulse speed; The second parameter determination submodule 802 is used to obtain the actual operating current of the driving component and determine the current change parameter representing the time sequence fluctuation change of the actual operating current; A third parameter determination submodule 803, configured to determine a compensation parameter of the pulse control parameter based on the current change parameter; A parameter compensation submodule 804 is used to compensate the pulse control parameter according to the compensation parameter to obtain the compensated pulse control parameter; The signal applying submodule 805 is specifically used to generate a pulse control signal based on the compensated pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump; The pulse control module 806 is used to control the driving component to operate alternately according to the set operating speed and the pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0086] As can be seen from the above, since the pulse control signal is generated based on the compensated pulse control parameter, and the compensation parameter of the pulse control parameter is determined based on the current change parameter, the current change parameter can reflect the dynamic change environment of the heart in real time, then the compensated pulse control parameter can more accurately adapt to the dynamic change environment of the heart. Therefore, according to the above pulse control signal, the pulse control can be more accurately adapted to the current dynamic change environment of the heart, and high-precision adaptive pulse control can be achieved.

[0087] See also Fig. 9 , Fig. 9 A schematic diagram of the structure of a fourth pulse control device for a ventricular catheter pump provided in an embodiment of the present application, the device comprising: The first parameter determination submodule 901 is used to determine the pulse control parameters that match the current setting gear of the ventricular catheter pump, wherein the pulse control parameters include a pulse period and a pulse speed; The second parameter determination submodule 902 is used to obtain the actual operating current of the driving component and determine the current change parameter representing the time sequence fluctuation change of the actual operating current; The parameter determination submodule 903 is used to determine whether the current change parameter is within a preset abnormal current change range; if yes, trigger the third parameter determination submodule; A third parameter determination submodule 904, configured to determine a compensation parameter of the pulse control parameter based on the current change parameter; A parameter compensation submodule 905 is used to compensate the pulse control parameter according to the compensation parameter to obtain the compensated pulse control parameter; A signal applying submodule 906, specifically configured to generate a pulse control signal based on the compensated pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump; The pulse control module 907 is used to control the driving component to operate alternately according to the set operating speed and the pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

[0088] In this embodiment, the current change parameter is within the preset abnormal current change range, indicating that the current operating current of the ventricular catheter pump is abnormal, reflecting that the patient's heart environment is abnormal, and the main causes of the abnormal heart environment include thrombosis. In this case, by determining the compensation parameters of the pulse control parameters, the pulse control parameters are adjusted in real time to adapt to the abnormal heart environment and achieve precise control.

[0089] See also Fig.10 , Fig.10 A schematic diagram of the structure of a fifth pulse control device for a ventricular catheter pump provided in an embodiment of the present application, the device comprising: The gear determination module 1001 is used to determine whether the current gear setting of the ventricular catheter pump is greater than a preset critical gear; if yes, the signal application module 1002 is triggered, and if no, the speed control module 1004 is triggered; A signal applying module 1002, used for applying a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; The pulse control module 1003 is used to control the driving component to alternately operate at a set operating speed and a pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed; The speed control module 1004 is used to control the driving component according to the set operating speed corresponding to the current set gear.

[0090] From the above, it can be seen that by applying the solution provided in this embodiment, whether to trigger pulse control is determined by the size relationship between the current set gear of the ventricular catheter pump and the preset critical gear, so that the triggered pulse control can flexibly consider the actual needs of the current heart and realize dynamic triggered pulse control.

[0091] In one embodiment of the present application, the ventricular catheter pump is a right ventricular catheter pump.

[0092] Corresponding to the pulse control system of the ventricular catheter pump described above, the present application embodiment provides an electronic medical device, see Fig.11 , Fig.11 A schematic diagram of the structure of an electronic medical device provided in an embodiment of the present application, wherein the electronic medical device includes a processor 1101, a communication interface 1102, a memory 1103 and a communication bus 1104, wherein the processor 1101, the communication interface 1102, and the memory 1103 communicate with each other via the communication bus 1104; Memory 1103, used for storing computer programs; The processor 1101 is used to implement the pulse control method steps in the pulse control system of the ventricular catheter pump when executing the program stored in the memory 1103.

[0093] The communication bus mentioned in the above controller can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0094] The communication interface is used for communication between the above controller and other devices.

[0095] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0096] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can 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.

[0097] In another embodiment provided in the present application, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the pulse control method in the pulse control system of the ventricular catheter pump is implemented.

[0098] In another embodiment provided in the present application, a computer program product comprising instructions is also provided, which, when executed on a computer, enables the computer to implement the pulse control method described in the pulse control system of the ventricular catheter pump provided in the embodiment of the present application.

[0099] As can be seen from the above, by applying the solution provided in this embodiment, the pulse control device applies a pulse control signal to the driving component of the ventricular catheter pump, and according to the above pulse control signal, controls the driving component to alternately operate according to the set operating speed and the pulse speed. Since the pulse speed is greater than the set operating speed, and the pulse control signal is periodic, the ventricular catheter pump generates periodic pulse jitter, thereby minimizing blood flow stagnation around the ventricular catheter pump, effectively preventing thrombosis, and significantly improving the operating safety of the ventricular catheter pump.

[0100] 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 process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive Solid State Disk (SSD)), etc.

[0101] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0102] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, electronic medical equipment, 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 partial description of the method embodiments.

[0103] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A pulse control system for a ventricular catheter pump, characterized in that: The system comprises a ventricular catheter pump and a pulse control device. The ventricular catheter pump is implanted in the patient's heart through percutaneous intervention. The pulse control device is located outside the patient's body and connected to the ventricular catheter pump. The pulse control device performs the following pulse control method when controlling the ventricular catheter pump: Applying a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; According to the pulse control signal, the driving component is controlled to operate alternately at a set operating speed and a pulse speed, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

2. The system according to claim 1, characterized in that The step of applying a pulse control signal to a driving component of the ventricular catheter pump comprises: Determining pulse control parameters that match the current setting gear of the ventricular catheter pump, wherein the pulse control parameters include a pulse period and a pulse speed; Based on the pulse control parameter, a pulse control signal is generated and applied to a drive component of the ventricular catheter pump.

3. The system according to claim 2, characterized in that Before generating a pulse control signal based on the pulse control parameter, the method further includes: Acquire the actual operating current of the driving component, and determine a current change parameter characterizing the time sequence fluctuation change of the actual operating current; Determining a compensation parameter of the pulse control parameter based on the current change parameter; Compensating the pulse control parameter according to the compensation parameter to obtain a compensated pulse control parameter; The generating a pulse control signal based on the pulse control parameter includes: generating a pulse control signal based on the compensated pulse control parameter.

4. The system according to claim 3, characterized in that Before determining the compensation parameter of the pulse control parameter based on the current change parameter, the method further includes: Determining whether the current change parameter is within a preset abnormal current change range; If yes, the step of determining the compensation parameter of the pulse control parameter based on the current change parameter is performed.

5. The system according to any one of claims 1 to 4, characterized in that: Before applying the pulse control signal to the driving assembly of the ventricular catheter pump, the method further includes: Determining whether the current setting gear of the ventricular catheter pump is greater than a preset critical gear; If not, executing the step of applying a pulse control signal to the driving assembly of the ventricular catheter pump; If yes, the drive assembly is controlled according to the set operating speed corresponding to the currently set gear.

6. The system according to any one of claims 1 to 4, characterized in that: The ventricular catheter pump is a right ventricular catheter pump.

7. A pulse control device for a ventricular catheter pump, characterized in that: A pulse control device used in a pulse control system, wherein the pulse control system further comprises a ventricular catheter pump, wherein the ventricular catheter pump is implanted in the patient's heart through percutaneous intervention, and the pulse control device is located outside the patient's body and connected to the ventricular catheter pump, wherein the device comprises: A signal applying module, used for applying a pulse control signal to the driving component of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal including a pulse rotation speed; A pulse control module is used to control the driving component to operate alternately according to a set operating speed and a pulse speed according to the pulse control signal, so that the ventricular catheter pump generates periodic pulse jitter, wherein the set operating speed is the operating speed corresponding to the current set gear of the ventricular catheter pump, and the pulse speed is greater than the set operating speed.

8. The device according to claim 7, characterized in that The signal applying module comprises: A first parameter determination submodule, used to determine a pulse control parameter that matches the current setting gear of the ventricular catheter pump, wherein the pulse control parameter includes a pulse period and a pulse speed; The signal applying submodule is used to generate a pulse control signal based on the pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

9. The device according to claim 8, characterized in that The signal applying module further includes: A second parameter determination submodule is used to obtain the actual operating current of the driving component and determine a current change parameter characterizing the timing fluctuation change of the actual operating current before the signal application submodule; A third parameter determination submodule, configured to determine a compensation parameter of the pulse control parameter based on the current change parameter; A parameter compensation submodule, used to compensate the pulse control parameter according to the compensation parameter to obtain the compensated pulse control parameter; The signal applying submodule is specifically used to generate a pulse control signal based on the compensated pulse control parameter, and apply the pulse control signal to the driving component of the ventricular catheter pump.

10. The device according to claim 9, characterized in that The signal applying module further includes: The parameter judgment submodule is used to judge whether the current change parameter is within a preset abnormal current change range before the third parameter determination submodule; if yes, trigger the third parameter determination submodule.

11. The device according to any one of claims 7 to 10, characterized in that The device also includes: A gear determination module, used for determining whether the current gear setting of the ventricular catheter pump is greater than a preset critical gear before the signal application module; if yes, triggering the signal application module, and if no, triggering the speed control module; The speed control module is used to control the driving component according to the set operating speed corresponding to the current set gear.

12. The device according to any one of claims 7 to 10, characterized in that The ventricular catheter pump is a right ventricular catheter pump.

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