Interventional pump based on micro pressure sensor and its implantation position determination method

Abstract

The present application relates to an interventional pump based on a micro pressure sensor and a method for determining its implantation position, which includes: a pressure sensor for real-time acquisition of pressure values ​​in a preset area during the rapid ejection period; a pump body and a drive motor, wherein the drive motor provides driving power to the pump body so that the pump body provides a flow path for blood; and a management system for data processing and fitting the pressure values ​​to obtain a pressure-position function within the left ventricle, and performing a consistency test on the pressure-position function. After the consistency test of the pressure-position function passes, the implantation position of the interventional pump is obtained from the pressure value. This solves the problem that the current traditional cardiac interventional pump cannot accurately obtain the real-time position of the interventional pump within the ventricle when the interventional pump is in operation, which greatly affects the safety and efficiency of artificial heart surgery.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment design, and in particular to an interventional pump based on a micro pressure sensor and a method for determining the implantation position thereof. Background Art

[0002] Cardiac interventional pumps based on hollow cup motors have been used in the field of artificial hearts. However, during actual operation, traditional cardiac interventional pumps still have problems such as the interventional pump getting stuck on the heart valve due to incorrect position judgment.

[0003] Therefore, the current traditional cardiac interventional pump is unable to accurately obtain the real-time position of the interventional pump in the ventricle when the interventional pump is working, which greatly affects the safety and efficiency of artificial heart surgery and needs to be solved urgently. Summary of the Invention

[0004] The present application provides an interventional pump based on a micro pressure sensor and a method for determining its implantation position, in order to solve the problem that the current traditional cardiac interventional pump cannot accurately obtain the real-time position of the interventional pump in the ventricle when the interventional pump is in working state, which greatly affects the safety and efficiency of artificial heart surgery.

[0005] The first aspect of the present application provides an interventional pump based on a micro pressure sensor, comprising: a pressure sensor for real-time acquisition of pressure values ​​in a preset area during a rapid ejection period; a pump body and a drive motor, wherein the drive motor provides driving capability for the pump body, so that the pump body provides a flow path for blood; and a management system for performing data processing and fitting on the pressure values ​​to obtain a pressure-position function within the left ventricle, and performing a consistency check on the pressure-position function, and after the consistency check of the pressure-position function passes, obtaining the implantation position of the interventional pump from the pressure values.

[0006] Optionally, in one embodiment of the present application, the management system includes: a power supply module; a data storage and transmission module, used to process the pressure value to obtain the pressure-position function within the left ventricle, and perform consistency verification on the pressure-position function according to a preset verification method; a pressure control negative feedback module, used to process the micro pressure sensor reading in real time after the consistency verification of the pressure-position function is passed, to obtain the current position of the interventional pump.

[0007] Optionally, in one embodiment of the present application, it further includes: a memory module, used to store the pressure-position function.

[0008] Optionally, in one embodiment of the present application, it further includes: a pre-catheter for guiding blood flow.

[0009] Optionally, in one embodiment of the present application, it further includes: a percutaneous catheter for delivering electricity to the pump body and the micro motor.

[0010] The second aspect of the present application provides a method for determining the implantation position of an interventional pump based on a micro pressure sensor, comprising the following steps: obtaining a pressure value of a preset area during the rapid ejection period; performing data processing and fitting on the pressure value to obtain a pressure-position function within the left ventricle; and obtaining the implantation position of the interventional pump from the pressure value based on a consistency test on the pressure-position function, after the consistency test of the pressure-position function passes.

[0011] Optionally, in one embodiment of the present application, the pressure-position function is subjected to a consistency check, and after the pressure-position function consistency check passes, the implantation position of the interventional pump is obtained from the pressure value, including: performing a consistency check on the pressure-position function based on the pressure-position function and a preset check method; after the pressure-position function consistency check passes, the pressure value measured in real time by the micro pressure sensor is combined with the pressure-position function to determine the current position of the interventional pump.

[0012] Optionally, in one embodiment of the present application, the pressure values ​​are processed and fitted to obtain a pressure-position function in the left ventricle, including: subtracting the pressure values ​​of each characteristic point in the left ventricle from the pressure value at the aortic valve to obtain a pressure difference; using the pressure difference as an independent variable and the position of each characteristic point as a dependent variable to fit the pressure-position relationship in the left ventricle.

[0013] The third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the method for determining the implantation position of an interventional pump based on a micro pressure sensor as described in the above embodiment.

[0014] A fourth aspect of the present application provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, it implements the above-mentioned method for determining the implantation position of an interventional pump based on a micro pressure sensor.

[0015] Therefore, the embodiments of the present application have the following beneficial effects:

[0016] The embodiments of the present application may include a pressure sensor for real-time acquisition of pressure values ​​in a preset area during the rapid ejection period; a pump body and a drive motor, wherein the drive motor provides driving power to the pump body so that the pump body provides a flow path for blood; and a management system for data processing and fitting of the pressure values ​​to obtain a pressure-position function in the left ventricle, and based on a consistency test of the pressure-position function, and after the consistency test of the pressure-position function passes, the implantation position of the interventional pump is obtained from the pressure value. The present application can monitor the real-time working state of the interventional pump in the ventricle based on the correspondence between the pressure sensor signal and the implantation position of the interventional pump, so that the position of the interventional pump in the ventricle can be obtained in real time during the working process of the cardiac interventional pump in the ventricle, so that the cardiac interventional pump has a better clinical effect. Thus, the problem that the current traditional cardiac interventional pump cannot accurately obtain the real-time position of the interventional pump in the ventricle when the interventional pump is in working state, which greatly affects the safety and efficiency of artificial heart surgery, is solved.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is an exemplary diagram of an interventional pump based on a micro pressure sensor according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structural relationship of a comprehensive management system and its submodules provided in one embodiment of the present application;

[0021] Figure 3 A schematic diagram of a pressure control negative feedback module provided in one embodiment of the present application;

[0022] Figure 4 A left ventricular pressure-position fitting function curve provided by one embodiment of the present application;

[0023] Figure 5 A schematic diagram of a partial architecture of an interventional pump based on a micro pressure sensor provided in one embodiment of the present application;

[0024] Figure 6 A schematic diagram of a data transmission and communication module provided for one embodiment of the present application;

[0025] Figure 7 A schematic diagram of a Harvard structure microprocessor provided for one embodiment of the present application;

[0026] Figure 8 A schematic diagram of the execution logic of an interventional pump based on a micro pressure sensor provided in one embodiment of the present application;

[0027] Figure 9 This is a flow chart of a method for determining the implantation position of an interventional pump based on a micro pressure sensor according to an embodiment of the present application;

[0028] Figure 10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0029] Among them, 10-interventional pump based on micro pressure sensor, 100-pressure sensor, 200-pump body and drive motor, 300-management system, 400-pre-catheter, 500-percutaneous catheter, 1001-memory, 1002-processor, 1003-communication interface. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0031] The following describes, with reference to the accompanying drawings, an interventional pump based on a micro-pressure sensor and a method for determining its implantation position according to an embodiment of the present application. To address the issues mentioned in the background art, the present application provides an interventional pump based on a micro-pressure sensor, comprising: a pressure sensor for real-time acquisition of pressure values ​​in a preset region during the rapid ejection phase; a pump body and a drive motor, wherein the drive motor provides driving power to the pump body, thereby providing a flow path for blood; and a management system for processing and fitting the pressure values ​​to obtain a pressure-position function within the left ventricle. A consistency check is then performed on the pressure-position function, and after the consistency check passes, the implantation position of the interventional pump is determined from the pressure values. The present application monitors the real-time operating status of the interventional pump within the ventricle based on the corresponding relationship between the pressure sensor signal and the implantation position of the interventional pump. This allows the position of the interventional pump within the ventricle to be determined in real time during the operation of the interventional pump, resulting in improved clinical efficacy. This solves the problem that conventional interventional pumps cannot accurately determine the real-time position of the interventional pump within the ventricle while the interventional pump is operating, significantly impacting the safety and efficiency of artificial heart surgery.

[0032] Specifically, a block diagram of an interventional pump based on a micro pressure sensor according to an embodiment of the present application.

[0033] like Figure 1As shown, the micro pressure sensor-based interventional pump 10 includes: a pressure sensor 100 , a pump body and a driving motor 200 , and a management system 300 .

[0034] The pressure sensor 100 is used to collect the pressure value of a preset area during the rapid ejection phase in real time.

[0035] The embodiments of the present application can divide the left ventricle into several small areas, and then use relative pressure imaging (RPI), a new non-invasive method for calculating the intracardiac pressure distribution. By applying two-dimensional speckle tracking technology to VFM technology, combined with the continuity equation, the flow velocity component in the main flow velocity direction is directly measured and calculated to obtain the intraventricular flow velocity vector. This can not only directly measure the intracardiac pressure, simulate the approximate distribution of the pressure field in the left ventricle, find the correspondence between the signal obtained by the interventional pump pressure sensor and the spatial position, and visualize the intraventricular pressure distribution, providing a basis for the subsequent setting of feature points, but also verify whether the subsequent fitted pressure-position function is correct; however, although this method can obtain the approximate pressure field distribution in the left ventricle, it cannot give the specific pressure value at a certain position in the ventricle.

[0036] The embodiments of the present application can divide the left ventricle into several small areas, and set several characteristic points in each small area; and use relative pressure imaging to simulate the approximate distribution of the pressure field in each area in the left ventricle, while using a micro pressure sensor to collect the pressure value measured by the pressure sensor at each characteristic point during the rapid ejection period.

[0037] Therefore, the embodiments of the present application use a micro pressure sensor to accurately measure the pressure value at the measured position, so that during the process of inserting the medical interventional pump into the heart, the micro pressure sensor is implanted in the left ventricle along with the interventional pump and measures the pressure in real time, providing reliable data support for the subsequent transmission and processing of the pressure data.

[0038] The pump body and the driving motor 200 are configured such that the driving motor provides driving power to the pump body, so that the pump body provides a flow path for blood.

[0039] In an embodiment of the present application, the pump body and the micromotor provide a flow path for blood, and the micromotor is actively implanted. By controlling the operation of the micromotor and driving the impeller in the pump body to rotate, the interventional pump can pump blood outward.

[0040] The management system 300 is used to process and fit the pressure values ​​to obtain the pressure-position function in the left ventricle, and to perform a consistency test on the pressure-position function. After the consistency test of the pressure-position function is passed, the implantation position of the interventional pump is obtained from the pressure values.

[0041] In the embodiment of the present application, the pressure value of each characteristic point in the left ventricle and the pressure value at the aortic valve can be differentiated through the integrated management system, and the pressure difference can be used as the independent variable and the position of each characteristic point as the dependent variable to fit the pressure-position function of the left ventricle.

[0042] Furthermore, in order to verify the accuracy and rationality of the pressure-position function, the embodiments of the present application can use relative pressure imaging to simulate the approximate distribution of the pressure field in each area of ​​the left ventricle, and compare the fitted pressure-position function with the pressure field distribution simulated by relative pressure imaging to verify whether the pressure-position function is consistent with the pressure field distribution.

[0043] Optionally, in one embodiment of the present application, the management system 300 includes: a power supply module, a data storage and transmission module, and a pressure control negative feedback module.

[0044] Among them, the power module.

[0045] The data storage and transmission module is used to process the pressure values, obtain the pressure-position function in the left ventricle, and perform consistency test on the pressure-position function according to a preset test method.

[0046] The pressure control negative feedback module is used to process the micro pressure sensor reading in real time after the pressure-position function consistency test is passed to obtain the current position of the interventional pump.

[0047] It should be noted that, in the embodiment of the present application, the above-mentioned integrated management system includes a power supply module, a data storage and transmission module and a pressure control negative feedback module, such as Figure 2 shown.

[0048] Specifically, the power module can supply power to components that require electricity to work, such as micro motors.

[0049] The data storage and transmission module can perform data calculation and fitting on the pressure values ​​measured and transmitted by the micro pressure sensor to obtain the pressure-position function in the left ventricle, and test the rationality of the pressure-position function and perform consistency test.

[0050] In addition, during the process of gradually implanting the interventional pump toward the position estimated by the pressure-position function, the embodiment of the present application can also substitute the pressure value into the pressure control negative feedback module for calculation in real time, such as Figure 3 As shown, the accuracy of the implantation position is improved and the position estimation error is reduced.

[0051] It should be noted that in the actual intervention process, the final position of the interventional pump has a fixed range, that is, the inlet position is at the position near the apex of the aortic valve, and the outlet position is on the other side of the aortic valve; in order to make the interventional pump reach the set expected position, the embodiment of the present application can compare the difference between the real-time measured pressure value and the pressure value at the expected position, and use a closed-loop negative feedback method to adjust the implantation position of the interventional pump to move toward the expected position, and substitute the real-time pressure sensor value into the above-mentioned pressure-position fitting function for calculation until the real-time position of the interventional pump coincides with the expected position, thereby effectively reducing the position error.

[0052] After the pressure-position function passes the consistency test, when the interventional pump is subsequently extended into an unknown position, the operator only needs to observe the pressure reading of the micro pressure sensor in real time and substitute it into the pressure-position function to know the current position of the interventional pump.

[0053] For example, Figure 4 is the pressure-position function image fitted during a certain experiment, such as Figure 4 As shown, the horizontal coordinate x represents the distance from the current position to the aortic valve, and the vertical coordinate y represents the difference between the pressure value at the current position and the pressure value at the aortic valve. The function expression is:

[0054] y=-3.477×10 -6 x 4 +0.001053x 3 -0.1165x 2 +6.056x+1.002

[0055] Among them, the fitting effect R 2 =0.997, the fitting effect is better.

[0056] It should be noted that if the signal value received by the pressure sensor changes significantly in a short period of time (not during diastole or contraction of the heart), it indicates that the interventional pump has moved abnormally in the heart, that is, its position is abnormal. In the embodiment of the present application, the user can monitor the electrocardiogram in real time to see if it is abnormal. During actual operation, there is a small probability that the interventional pump will get stuck on the heart valve. If the above-mentioned abnormal situation occurs, the electrocardiogram waveform will undergo obvious abnormal changes. The observer can handle or eliminate the abnormal situation through corresponding methods.

[0057] Therefore, the embodiment of the present application can monitor the real-time working status of the interventional pump in the ventricle by obtaining the correspondence between the micro pressure sensor signal and the implantation position of the interventional pump, so that the cardiac interventional pump has a better clinical effect.

[0058] Optionally, in one embodiment of the present application, the micro pressure sensor-based interventional pump 10 of the embodiment of the present application further includes: a pre-catheter 400 for guiding blood flow.

[0059] It should be noted that the embodiments of the present application also include a pre-catheter, and the above-mentioned micro pressure sensor is surface-mounted on the pre-catheter. A fluid inlet is provided at the front end of the pre-catheter to guide the blood flow. The blood flows into the inlet of the pre-catheter, enters the pump body, and is pumped out, thereby realizing the function of the interventional pump to pump blood outward.

[0060] Optionally, in one embodiment of the present application, the micro pressure sensor-based interventional pump 10 of the embodiment of the present application further includes: a percutaneous catheter 500 for delivering electricity to the pump body and the micro motor.

[0061] Furthermore, an embodiment of the present application also includes a percutaneous catheter, which is connected to the micromotor and a power module installed in the integrated management system to supply power to the micromotor.

[0062] Therefore, the interventional pump of the embodiment of the present application includes a pre-catheter, a micro pressure sensor, a pump body and a micro motor, a percutaneous catheter, an integrated management system and other parts, such as Figure 5 As shown, a micro pressure sensor is mounted on a pre-implanted catheter and implanted in the left ventricle along with the interventional pump to measure pressure in real time. The pump is connected to a micromotor and the pre-implanted catheter. The pump and micromotor are powered by a percutaneous guidewire, which is connected to an integrated management system.

[0063] Optionally, in one embodiment of the present application, the micro pressure sensor-based interventional pump 10 of the embodiment of the present application further includes: a memory module for storing a pressure-position function.

[0064] As a feasible method, considering that the amount of data stored and transmitted during the implementation of the embodiment of the present application is large, in order to improve the efficiency of information transmission, the embodiment of the present application can use offline data storage to determine the implantation position of the interventional pump.

[0065] Specifically, the embodiment of the present application can be based on the structure of the microprocessor, so that the controller is connected to the microprocessor, and the microprocessor is composed of a CPU, a memory, a bus, an I / O interface and other parts, such as Figure 6 As shown; in addition, the embodiments of the present application can pre-store the pressure sensor values ​​and pressure-position functions corresponding to different positions in a patient's ventricle in the memory, so that the system does not need to repeatedly store and fit the patient's left ventricular pressure and position data, and after actually receiving the pressure sensor signal, it can be directly substituted into the pressure-position function for calculation and then determine the position, which greatly saves system operation time.

[0066] It should be noted that the microprocessor in the embodiment of the present application adopts Harvard structure, such as Figure 7 As shown, an embodiment of the present application uses two independent memory modules to store instructions and data respectively to achieve parallel processing; wherein, the system has an independent address bus and an independent data bus, and a common address bus is used to access the program storage module and the data storage module, and the common data bus is used to complete the data transmission between the program storage module or the data storage module and the CPU. The two buses are shared by the program memory and the data memory in a time-sharing manner, and the program memory and the data memory are separated, thereby achieving parallel processing and improving the efficiency of information transmission.

[0067] The following will describe the execution logic of the interventional pump based on the micro pressure sensor of the present application with reference to the accompanying drawings.

[0068] Figure 8 The following is a schematic diagram of the execution logic of the interventional pump based on a micro pressure sensor. Figure 8 As shown, the implementation process of the interventional pump based on the micro pressure sensor of the present application is as follows:

[0069] S801: Collecting pressure sensor data;

[0070] S802: fitting pressure-position function;

[0071] S803: Substitute relative pressure imaging method;

[0072] S804: Verify whether the fitted pressure-position function and pressure distribution are consistent. If they are consistent, go to S805; otherwise, go to S801.

[0073] S805: Accept the pressure-position determination method.

[0074] According to the embodiment of the present application, the interventional pump based on a micro pressure sensor includes a pressure sensor for real-time acquisition of pressure values ​​in a preset area during the rapid ejection period; a pump body and a drive motor, wherein the drive motor provides driving power to the pump body so that the pump body provides a flow path for blood; and a management system for data processing and fitting the pressure values ​​to obtain a pressure-position function within the left ventricle, and based on a consistency test of the pressure-position function, after the consistency test of the pressure-position function passes, the implantation position of the interventional pump is obtained from the pressure value. The present application can monitor the real-time working status of the interventional pump in the ventricle based on the corresponding relationship between the pressure sensor signal and the implantation position of the interventional pump, so that the position of the interventional pump in the ventricle can be obtained in real time during the working process of the cardiac interventional pump in the ventricle, so that the cardiac interventional pump has a better clinical effect.

[0075] Next, a method for determining the implantation position of an interventional pump based on a micro pressure sensor according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0076] Figure 9 This is a flow chart of a method for determining the implantation position of an interventional pump based on a micro pressure sensor provided in an embodiment of the present application.

[0077] like Figure 9 As shown, the method for determining the implantation position of an interventional pump based on a micro pressure sensor includes the following steps:

[0078] In step S901 , a pressure value of a preset area in a rapid ejection phase is obtained.

[0079] In step S902, data processing and fitting are performed on the pressure values ​​to obtain a pressure-position function in the left ventricle.

[0080] Optionally, in one embodiment of the present application, the pressure values ​​are processed and fitted to obtain a pressure-position function within the left ventricle, including: taking the difference between the pressure values ​​of each characteristic point in the left ventricle and the pressure value at the aortic valve to obtain a pressure difference; using the pressure difference as the independent variable and the position of each characteristic point as the dependent variable to fit the pressure-position relationship within the left ventricle.

[0081] In step S903, a consistency check is performed on the pressure-position function. If the consistency check is passed, the implantation position of the interventional pump is obtained from the pressure value.

[0082] Optionally, in one embodiment of the present application, based on a consistency check of the pressure-position function, and after the pressure-position function consistency check passes, the implantation position of the interventional pump is obtained from the pressure value, including: performing a consistency check on the pressure-position function based on the pressure-position function and a preset test method; after the pressure-position function consistency check passes, the current position of the interventional pump is determined based on the pressure value measured in real time by the micro pressure sensor and combined with the pressure-position function.

[0083] It should be noted that the aforementioned explanation of the embodiment of the interventional pump based on a micro pressure sensor is also applicable to the method for determining the implantation position of the interventional pump based on a micro pressure sensor in this embodiment, and will not be repeated here.

[0084] According to the method for determining the implantation position of an interventional pump based on a micro-pressure sensor proposed in an embodiment of the present application, the pressure value of a preset area during the rapid ejection phase is obtained; the pressure value is processed and fitted to obtain a pressure-position function within the left ventricle; and after a consistency test is performed on the pressure-position function and the pressure-position function passes the consistency test, the implantation position of the interventional pump is determined from the pressure value. Based on the correspondence between the pressure sensor signal and the implantation position of the interventional pump, the present application can monitor the real-time operating status of the interventional pump within the ventricle, allowing the position of the interventional pump within the ventricle to be determined in real time during its operation, thereby achieving better clinical results for the interventional pump.

[0085] Figure 10 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0086] A memory 1001 , a processor 1002 , and a computer program stored in the memory 1001 and executable on the processor 1002 .

[0087] When the processor 1002 executes the program, the method for determining the implantation position of an interventional pump based on a micro pressure sensor provided in the above embodiment is implemented.

[0088] Furthermore, the electronic device further includes:

[0089] The communication interface 1003 is used for communication between the memory 1001 and the processor 1002 .

[0090] The memory 1001 is used to store computer programs that can be run on the processor 1002 .

[0091] The memory 1001 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0092] If the memory 1001, processor 1002, and communication interface 1003 are implemented independently, the communication interface 1003, memory 1001, and processor 1002 can be connected to each other via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 10Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0093] Optionally, in a specific implementation, if the memory 1001, the processor 1002 and the communication interface 1003 are integrated on a chip, the memory 1001, the processor 1002 and the communication interface 1003 can communicate with each other through an internal interface.

[0094] The processor 1002 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0095] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned method for determining the implantation position of an interventional pump based on a micro pressure sensor.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0097] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0098] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing a custom logical function or process step, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed in a different order than shown or discussed, including performing functions in a substantially simultaneous manner or in a reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0099] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or N wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program can be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing it in other suitable ways as necessary, and then storing it in a computer memory.

[0100] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0101] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0102] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0103] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. An interventional pump, wherein the interventional pump determines the corresponding implantation position based on a micro pressure sensor, characterized in that: The interventional pump comprises: A pressure sensor is used to collect the pressure value of a preset area during the rapid ejection phase in real time; a pump body and a driving motor, wherein the driving motor provides driving capability for the pump body, so that the pump body provides a flow path for blood; and A management system is used to make a difference between the pressure values ​​of each characteristic point in the left ventricle and the pressure value at the aortic valve to obtain a pressure difference, and use the pressure difference as an independent variable and the position of each characteristic point as a dependent variable to fit the pressure-position function in the left ventricle, and based on a preset relative pressure imaging method, simulate the pressure field distribution of each area in the left ventricle, and compare the pressure-position function with the pressure field distribution to obtain corresponding comparison results, so as to verify whether the pressure-position function is consistent with the pressure field distribution based on the comparison results, and when the pressure-position function is consistent with the pressure field distribution, obtain the implantation position of the interventional pump from the pressure value.

2. The interventional pump according to claim 1, characterized in that The management system includes: Power module; a data storage and transmission module, configured to process the pressure values ​​to obtain a pressure-position function within the left ventricle, and perform a consistency test on the pressure-position function according to a preset test method; The pressure control negative feedback module is used to process the reading of the micro pressure sensor in real time after the consistency test of the pressure-position function is passed, so as to obtain the current position of the interventional pump.

3. The interventional pump according to claim 1, characterized in that Also includes: A memory module is used to store the pressure-position function.

4. The interventional pump according to claim 1, characterized in that Also includes: Anterior catheter, used to guide blood flow.

5. The interventional pump according to claim 1, characterized in that Also includes: A percutaneous catheter is used to deliver power to the pump body and the micromotor.

6. A method for determining the implantation position of an interventional pump based on a micro pressure sensor, characterized in that: The following steps are involved: Obtaining the pressure value of the preset area during the rapid ejection phase; The pressure value of each characteristic point in the left ventricle and the pressure value at the aortic valve are subtracted to obtain a pressure difference, and the pressure difference is used as the independent variable and the position of each characteristic point as the dependent variable to fit the pressure-position function in the left ventricle, and based on the preset relative pressure imaging method, the pressure field distribution of each area in the left ventricle is simulated, and the pressure-position function and the pressure field distribution are compared to obtain corresponding comparison results, so as to verify whether the pressure-position function and the pressure field distribution are consistent according to the comparison results, and when the pressure-position function and the pressure field distribution are consistent, the implantation position of the interventional pump is obtained from the pressure value.

7. The method for determining the implantation position of an interventional pump based on a micro pressure sensor according to claim 6, characterized in that: The step of performing a consistency check on the pressure-position function and obtaining the implantation position of the interventional pump from the pressure value after the pressure-position function consistency check passes includes: Performing a consistency check on the pressure-position function based on the pressure-position function and a preset checking method; After the consistency test of the pressure-position function is passed, the current position of the interventional pump is determined based on the pressure value measured in real time by the micro pressure sensor in combination with the pressure-position function.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for determining the implantation position of an interventional pump based on a micro pressure sensor as described in any one of claims 6 to 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the method for determining the implantation position of an interventional pump based on a micro pressure sensor as described in any one of claims 6 to 7.

Images