Method, device, equipment and product for positioning balloon position in aorta

Abstract

This invention discloses a method, device, equipment, and product for locating an intra-aortic balloon. The method includes establishing a blood conduction distance model, which characterizes the correspondence between blood conduction distance, blood conduction time, and systolic blood pressure at the balloon's location; acquiring electrocardiogram (ECG) waveforms and blood pressure waveforms at the balloon's location, and calculating the blood conduction time; determining the blood conduction distance using the blood conduction distance model based on the calculated blood conduction time and the acquired systolic blood pressure; and determining the balloon's position within the aorta based on the blood conduction distance. This invention, based on ECG and blood pressure waveforms and utilizing a blood conduction distance model, determines the balloon's position within the aorta without requiring marking the intra-arterial balloon or using fluoroscopic equipment, significantly reducing reliance on the experience of medical professionals. It features accurate positioning, convenient operation, and wide applicability.

Description

Technical Field

[0001] The present invention belongs to the field of aortic occlusion balloons, and in particular relates to a method, device, equipment and product for positioning a balloon in the aorta. Background Art

[0002] The balloon catheter can be introduced into a specific position of the aorta through skin puncture technology, and then the balloon is inflated to block the blood flow of the aorta to the distal end of the balloon, thereby solving problems such as aortic bleeding.

[0003] Under existing technical conditions, when using a balloon, it is necessary to track the specific position of the balloon in the body to ensure the safety of arterial puncture, evaluate the placement of the balloon, and determine whether aortic bleeding is blocked by the balloon. The existing tracking and judgment of the specific position of the balloon in the aorta in the body generally relies on the experience and judgment of professional medical staff and the use of fluoroscopic equipment to track the specific position of the balloon in the aorta. However, in remote accident sites, major disaster sites and other environments where conditions are scarce, there is a lack of professional medical staff and fluoroscopic equipment. Therefore, there is a problem of difficulty in locating and judging the position of the balloon in the aorta on site. Summary of the invention

[0004] In view of this, the present invention aims to overcome the defects in the prior art and proposes a method, device, equipment and product for locating the position of an intra-aortic balloon.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] In a first aspect, the present invention discloses a method for locating a balloon position in an aorta, comprising:

[0007] A blood conduction distance model is established. The blood conduction distance model is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time, and the systolic pressure value at the balloon location. The blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for the blood to reach the balloon location after being ejected from the heart.

[0008] Obtaining an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculating the blood conduction time, wherein the blood conduction time is the difference between the R peak time of the ECG waveform signal and the peak time of the blood pressure waveform signal within the same signal sampling period;

[0009] The blood conduction distance is determined using a blood conduction distance model according to the calculated blood conduction time and the obtained systolic blood pressure value;

[0010] The position of the balloon in the aorta is determined based on the blood conduction distance.

[0011] In another embodiment of the present invention, the blood conduction distance model is a binary function model.

[0012] In another embodiment of the present invention, a blood conduction distance model is established, and the blood conduction distance model is used to characterize the correspondence between the blood conduction distance and the blood conduction time and the systolic pressure value at the balloon location, including: obtaining historical numerical data of the correspondence between the blood conduction distance and the blood conduction time and the systolic pressure value, and using the historical numerical data to determine the parameters of the blood conduction distance model.

[0013] In another embodiment of the present invention, an electrocardiogram waveform signal and a blood pressure waveform signal at the location of the balloon are obtained, including: a blood pressure sensor is arranged inside the balloon, and the blood pressure waveform signal and the systolic pressure value are obtained by using the blood pressure sensor.

[0014] In another embodiment of the present invention, obtaining an ECG waveform signal and a blood pressure waveform signal at the location of the balloon includes: obtaining the ECG waveform signal using an external ECG electrode patch.

[0015] In another embodiment of the present invention, the blood conduction time is the difference between the R peak moment of the ECG waveform signal and the peak moment of the blood pressure waveform signal within the same signal sampling period, including: calculating the difference between the R peak moment and the subsequent most recent peak moment.

[0016] In another embodiment of the present invention, the position of the balloon in the aorta is determined based on the blood conduction distance, including: dividing the entire aorta into several regions, and determining the region where the balloon is located based on the correspondence between the blood conduction distance and the region.

[0017] In a second aspect, the present invention discloses a device for locating the position of a balloon in the aorta, the device comprising:

[0018] A model building module, used to build a blood conduction distance model, which is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time, and the systolic pressure value at the balloon location, wherein the blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for the blood to reach the balloon location after being ejected from the heart;

[0019] An acquisition module, used to acquire an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculate the blood conduction time, wherein the blood conduction time is the difference between the R peak time of the ECG waveform signal and the peak time of the blood pressure waveform signal within the same signal sampling period;

[0020] A first determination module is used to determine the blood conduction distance using a blood conduction distance model according to the calculated blood conduction time and the acquired systolic blood pressure value;

[0021] The second determination module is used to determine the position of the balloon in the aorta according to the blood conduction distance.

[0022] In a third aspect, the present invention discloses an electronic device, comprising: one or more processors; a storage device for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors execute the above method.

[0023] In a fourth aspect, the present invention discloses a computer program product, including a computer program, which implements the above method when executed by a processor.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] The present invention discloses a method, device, equipment and product for locating the position of a balloon in the aorta, including establishing a blood conduction distance model, the blood conduction distance model is used to characterize the correspondence between the blood conduction distance and the blood conduction time and the systolic pressure value at the position of the balloon; obtaining an electrocardiogram waveform signal and a blood pressure waveform signal at the position of the balloon to calculate the blood conduction time; determining the blood conduction distance based on the calculated blood conduction time and the acquired systolic pressure value using the blood conduction distance model; determining the position of the balloon in the aorta based on the blood conduction distance. The present invention determines the position of the balloon in the aorta based on the electrocardiogram waveform signal and the blood pressure waveform signal using the blood conduction distance model, without marking the intra-arterial balloon and using fluoroscopic fluoroscopy equipment, greatly reducing the reliance on the experience of professional medical staff, and has the characteristics of accurate positioning, convenient operation and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] In the attached picture:

[0028] Figure 1 This is a schematic diagram of an application scenario of a method for locating the position of an intra-aortic balloon according to an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of a method for locating a balloon in the aorta according to an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of dividing regions for a method for locating the position of an intra-aortic balloon according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of a device for positioning a balloon in the aorta according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of an electronic device for locating the position of an intra-aortic balloon according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] In the description of the present invention, it should be further explained that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] Figure 1This is a schematic diagram of the application scenario of a method, device, equipment and product for locating the position of a balloon in the aorta disclosed by the present invention. Under the existing technical conditions, the tracking and judgment of the specific position of the existing balloon in the aorta in the body generally relies on the experience judgment of professional medical staff and the use of fluoroscopic fluoroscopy equipment to track the specific position of the balloon in the aorta. However, in remote accident sites and major disaster sites where conditions are insufficient, there is a lack of professional medical staff and fluoroscopic fluoroscopy equipment. Therefore, there is a problem of difficulty in locating the position of the balloon in the aorta on site. The present invention discloses a method, device, equipment and product for locating the position of a balloon in the aorta, including establishing a blood conduction distance model, the blood conduction distance model is used to characterize the correspondence between the blood conduction distance and the blood conduction time and the systolic pressure value at the location of the balloon; obtaining an electrocardiogram waveform signal and a blood pressure waveform signal at the location of the balloon, and calculating the blood conduction time; determining the blood conduction distance based on the calculated blood conduction time and the obtained systolic pressure value using the blood conduction distance model; determining the position of the balloon in the aorta based on the blood conduction distance. The present invention determines the position of the balloon in the aorta based on electrocardiogram waveform signals and blood pressure waveform signals and utilizes a blood conduction distance model. It does not require marking the intra-arterial balloon or using fluoroscope equipment, thus greatly reducing reliance on the experience of professional medical personnel. The present invention has the characteristics of accurate positioning, convenient operation, and a wide range of applications.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] In one embodiment of the present invention, Figure 2 As shown, a method for locating the position of an intra-aortic balloon comprises:

[0040] Step S201, establishing a blood conduction distance model, the blood conduction distance model is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time and the systolic pressure value at the balloon location, wherein the blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for the blood to reach the balloon location after being ejected from the heart;

[0041] In this embodiment, historical numerical data of the correspondence between the blood conduction distance, the blood conduction time and the systolic pressure value are obtained, and the parameters of the blood conduction distance model are determined using the historical numerical data.

[0042] For example, the historical numerical data may be the blood conduction time and systolic blood pressure value corresponding to blood conduction distances of 15 cm, 22 cm, and 30 cm, respectively.

[0043] Obtaining an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculating the blood conduction time, wherein the blood conduction time is the difference between the R peak time of the ECG waveform signal and the peak time of the blood pressure waveform signal within the same signal sampling period;

[0044] In this embodiment, the blood conduction time is calculated as the difference between the R peak time and the peak time of the next most recent blood pressure waveform.

[0045] In this embodiment, the R peak moment and the next nearest peak moment are in the same signal sampling period.

[0046] In this embodiment, a blood pressure sensor is disposed inside the balloon, and the blood pressure waveform signal and the systolic pressure value are obtained by using the blood pressure sensor.

[0047] In this embodiment, external ECG electrodes are used to obtain ECG waveform signals.

[0048] In this embodiment, a blood pressure sensor integrated inside the balloon is used to obtain a blood pressure waveform signal at the aorta where the balloon is located. In this embodiment, a silicon piezoresistive pressure sensor is selected as the blood pressure sensor integrated inside the balloon. The silicon piezoresistive pressure sensor with a diaphragm structure converts the pressure transmitted by blood on the silicon membrane into a force-electric signal through the piezoresistive effect, thereby realizing invasive blood pressure monitoring, and being able to accurately measure changes in blood pressure and obtain a blood pressure waveform signal at the same time. The sampling rate of the blood pressure waveform signal and the electrocardiogram waveform signal are both 500Hz, and the high-frequency noise and baseline drift are removed by wavelet decomposition.

[0049] In this embodiment, the peak positions of the R wave of the ECG waveform signal and the blood pressure waveform signal are obtained by feature extraction. In the same cycle, the R peak moment of the ECG waveform signal is expressed as tR, and the peak moment of the blood pressure waveform signal is expressed as tB. At this time, the R peak moment tR of the ECG waveform signal comes from the contraction of the ventricle, representing the blood being ejected from the heart, and the peak moment tB of the blood pressure waveform signal represents that the blood arrives at the positioning position after being ejected from the heart. Because the ECG waveform signal and the blood pressure waveform signal are collected at the same time, and the blood arrives at the positioning position after being ejected from the heart, the R peak moment tR of the ECG waveform signal must be earlier than the peak moment tB of the blood pressure waveform signal. The blood conduction time is expressed as T, then T=tB-tR; the systolic pressure value at the positioning position where the balloon is located is expressed as BP, that is, the pressure value corresponding to the highest peak of the blood pressure waveform signal;

[0050] When acquiring historical numerical data, when the blood conduction distance is selected as 15cm, 22cm and 30cm, the systolic pressure value is selected as four constant values ​​of 60mmHg, 80mmHg, 100mmHg and 120mmHg, corresponding to the ECG waveform signal and blood pressure waveform signal at this time, and the blood conduction time T is further calculated, and finally the historical data of different blood conduction distances, different systolic pressure values ​​and different blood conduction times T are obtained;

[0051] Step S203, determining the blood conduction distance using a blood conduction distance model according to the calculated blood conduction time and the acquired systolic blood pressure value;

[0052] Step S204, determining the position of the balloon in the aorta based on the blood conduction distance.

[0053] The present embodiment discloses a method for locating the position of an intra-aortic balloon. The method determines the position of the balloon in the aorta based on an electrocardiogram waveform signal and a blood pressure waveform signal and utilizes a blood conduction distance model. The method does not require marking the intra-arterial balloon or using a fluoroscopic device, thus greatly reducing reliance on the experience of professional medical personnel. The method has the characteristics of accurate positioning, convenient operation, and a wide range of applications.

[0054] Based on the previous embodiment, in another embodiment of the present invention, Figure 2 and Figure 3 As shown, the position of the balloon in the aorta is determined according to the blood conduction distance, including: dividing the entire aorta into several areas, and determining the area where the balloon is located according to the corresponding relationship between the blood conduction distance and the area.

[0055] In this embodiment, if Figure 3 As shown, the blood conduction distance is represented by L. Zone I of the aorta is the aortic segment extending from the starting point of the left subclavian artery to the celiac trunk, which is about 20 cm long. Blocking this segment can control the blood supply to the abdominal viscera, pelvis and lower limbs. Zone II of the aorta is the aortic segment from the celiac trunk to the lowest renal artery, which is about 3 cm long. Zone III of the aorta is the aortic segment extending from the lowest renal artery to the bifurcation of the abdominal aorta, which is about 10 cm long. Blocking this segment can control the blood supply to the pelvis and lower limbs. When L < 20 cm, the balloon is located in Zone I of the aorta, when 20 cm ≤ L < 23 cm, the balloon is located in Zone II of the aorta, and when L ≥ 23 cm, the balloon is located in Zone III of the aorta.

[0056] In this embodiment, the division of the aorta into zone I, zone II and zone III can achieve rapid positioning of the balloon in the aorta.

[0057] Based on the previous embodiment, in another embodiment of the present invention, the blood conduction distance model is a binary function model.

[0058] In this embodiment, the blood conduction distance model is as follows:

[0059] ,

[0060] in, is the blood conduction distance, is the blood conduction time, is the systolic blood pressure value, as well as are coefficient values;

[0061] In this embodiment, the binary function model is fitted by historical data to determine as well as The value of

[0062] In this embodiment, the blood conduction distance model is determined as follows:

[0063] According to the Moens-Korteweg formula, there is the following relationship:

[0064] (1),

[0065] in, PWV is the pulse wave propagation velocity, is the blood conduction distance, PWTT is the pulse wave transit time, E is the elastic modulus, h is the thickness of the blood vessel wall, ρ is the blood density, d is the artery diameter.

[0066] E By Hughes equation and systolic blood pressure value BP The relationship that produces the exponential correlation is as follows:

[0067] (2),

[0068] in, E 0 is the elastic modulus at zero pressure; 𝛾 is the vascular characteristic coefficient, ranging from 0.016-0.018 mmHg -1 ;

[0069] Formula (1) and formula (2) derive formula (3) as follows:

[0070] (3),

[0071] Furthermore, pulse wave transit time PWTT Replaced by blood conduction time , after transposing the terms, we get formula (4) as follows:

[0072] (4),

[0073] Furthermore, formula (4) is rearranged to obtain formula (5) as follows:

[0074] (5),

[0075] Further, let ; ;

[0076] The blood conduction distance model is as follows:

[0077] ,

[0078] like Figure 4 As shown, the present invention also discloses a device for positioning the position of a balloon in the aorta, comprising:

[0079] A model building module 401 is used to build a blood conduction distance model, which is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time, and the systolic pressure value at the balloon location, wherein the blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for the blood to reach the balloon location after being ejected from the heart;

[0080] An acquisition module 402 is used to acquire an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculate a blood conduction time, wherein the blood conduction time is a difference between an R peak time of the ECG waveform signal and a peak time of the blood pressure waveform signal within the same signal sampling period;

[0081] A first determination module 403 is used to determine the blood conduction distance using a blood conduction distance model according to the calculated blood conduction time and the acquired systolic blood pressure value;

[0082] The second determination module 404 is used to determine the position of the balloon in the aorta according to the blood conduction distance.

[0083] The present invention also discloses an electronic device, such as Figure 5 As shown, an embodiment is disclosed, which is a block diagram of an electronic device suitable for positioning the balloon position in the aorta as described above.

[0084] The electronic device 50 of this embodiment includes a processor 501, which can perform various appropriate actions and processes according to the program stored in the ROM 502 or the program loaded from the storage part 508 to the RAM 503. The processor 501 may include, for example, a general-purpose microprocessor, an instruction set processor and / or a related chipset and / or a dedicated microprocessor, etc. The processor 501 may also include an onboard memory for caching purposes. The processor 501 may include a single processing unit or multiple processing units for performing different actions of the method flow according to the embodiment of the present invention.

[0085] In RAM503, various programs and data required for the operation of electronic device 50 are stored. Processor 501, ROM502 and RAM503 are connected to each other via bus 504, and processor 501 performs various operations of the method flow according to the embodiment of the present invention by executing the program in ROM502 and / or RAM503. It should be noted that the program can also be stored in one or more memories other than ROM502 and RAM503, and processor 501 can also perform various operations of the method flow according to the embodiment of the present invention by executing the program stored in one or more memories.

[0086] According to an embodiment of the present invention, the electronic device 50 may further include an I / O interface 505, which is also connected to the bus 504. The electronic device 50 may further include one or more of the following components connected to the I / O interface 505: an input portion 506 including a keyboard, a mouse, etc.; an output portion 507 including a cathode ray tube, a liquid crystal display, and a speaker; a storage portion 508 including a hard disk, etc.; and a communication portion 509 including a network interface card such as a LAN card, a modem, etc. The communication portion 509 performs communication processing via a network such as the Internet. A drive 5010 is also connected to the I / O interface 505 as needed. A removable medium 5011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 5010 as needed, so that a computer program read therefrom is installed into the storage portion 508 as needed.

[0087] The present invention also provides a computer-readable storage medium.

[0088] The computer-readable storage medium may be included in the electronic device / device system described in the above embodiment; or it may exist independently without being assembled into the electronic device / device. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the method according to the embodiment of the present invention is implemented.

[0089] According to an embodiment of the present invention, the computer-readable storage medium may be a non-volatile computer-readable storage medium. For example, it may include but is not limited to: a portable computer disk, a hard disk, a random access memory RAM, a read-only memory ROM, an erasable programmable read-only memory EPROM or a flash memory, a portable compact disk read-only memory CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present invention, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0090] Embodiments of the present invention also include a computer program product.

[0091] The computer program product includes a computer program, which contains program codes for executing the method provided by the embodiment of the present invention. When the computer program product runs on an electronic device, the program codes are used to enable the electronic device to implement the method provided by the embodiment of the present invention.

[0092] In one embodiment, the computer program may rely on a tangible storage medium such as an optical storage device or a magnetic storage device. In another embodiment, the computer program may also be transmitted and distributed in the form of a signal on a network medium. The program code included in the computer program may be transmitted using any appropriate network medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0093] According to an embodiment of the present invention, the program code for executing the computer program provided by the embodiment of the present invention can be written by any combination of one or more programming languages, and specifically, these computing programs can be implemented using high-level process and / or object-oriented programming languages. Programming languages ​​include but are not limited to programming languages ​​such as Java, C++, python, C language or similar. The program code can be executed completely on the user computing device, partially on the user device, partially on the remote computing device, or completely on the remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network or a wide area network, or can be connected to an external computing device.

[0094] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions. It can be understood by those skilled in the art that the features recorded in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways, even if such a combination or combination is not explicitly recorded in the present invention. In particular, without departing from the spirit and teaching of the present invention, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present invention.

[0095] The embodiments of the present invention are described above. However, these embodiments are only for the purpose of illustration, and are not intended to limit the scope of the present invention. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination. The scope of the present invention is limited by the attached claims and their equivalents. Without departing from the scope of the present invention, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A method for locating a balloon position in an aorta, characterized in that: include: Establishing a blood conduction distance model, the blood conduction distance model is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time and the systolic pressure value at the balloon location, wherein the blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for the blood to reach the balloon location after being ejected from the heart; Acquire an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculate the blood conduction time, wherein the blood conduction time is the difference between the R peak time of the ECG waveform signal and the peak time of the blood pressure waveform signal within the same signal sampling period; Determining the blood conduction distance using the blood conduction distance model according to the calculated blood conduction time and the acquired systolic blood pressure value; The position of the balloon in the aorta is determined according to the blood conduction distance.

2. A method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: The blood conduction distance model is a binary function model.

3. A method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: The blood conduction distance model is established, and the blood conduction distance model is used to characterize the correspondence between the blood conduction distance, the blood conduction time, and the systolic pressure value at the balloon location, including: obtaining historical numerical data of the correspondence between the blood conduction distance, the blood conduction time, and the systolic pressure value, and using the historical numerical data to determine the parameters of the blood conduction distance model.

4. A method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: The method of acquiring the electrocardiogram waveform signal and the blood pressure waveform signal at the location of the balloon includes: arranging a blood pressure sensor inside the balloon, and acquiring the blood pressure waveform signal and the systolic pressure value by using the blood pressure sensor.

5. The method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: The obtaining of the ECG waveform signal and the blood pressure waveform signal at the location of the balloon includes: obtaining the ECG waveform signal using an external ECG electrode patch.

6. A method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: The blood conduction time is the difference between the R peak moment of the ECG waveform signal and the peak moment of the blood pressure waveform signal within the same signal sampling period, including: calculating the difference between the R peak moment and the next most recent peak moment.

7. A method for locating the position of an intra-aortic balloon according to claim 1, characterized in that: Determining the position of the balloon in the aorta according to the blood conduction distance includes: dividing the entire aorta into a plurality of regions, and determining the region where the balloon is located according to the correspondence between the blood conduction distance and the region.

8. A device for positioning a balloon in the aorta, characterized in that: The device comprises: A model building module, used to build a blood conduction distance model, wherein the blood conduction distance model is used to characterize the corresponding relationship between the blood conduction distance, the blood conduction time, and the systolic pressure value at the balloon location, wherein the blood conduction distance is the distance from the heart to the balloon location, and the blood conduction time is the time it takes for blood to reach the balloon location after being ejected from the heart; an acquisition module, used to acquire an ECG waveform signal and a blood pressure waveform signal at the location of the balloon, and calculate the blood conduction time, wherein the blood conduction time is the difference between the R peak time of the ECG waveform signal and the peak time of the blood pressure waveform signal within the same signal sampling period; A first determination module, configured to determine the blood conduction distance using the blood conduction distance model according to the calculated blood conduction time and the acquired systolic blood pressure value; The second determination module is used to determine the position of the balloon in the aorta according to the blood conduction distance.

9. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors are caused to perform the method according to any one of claims 1 to 7.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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