Magnetocardiographic measurement device and magnetocardiographic measurement method

Abstract

The present invention provides a magnetocardiographic measurement device and a magnetocardiographic measurement method, comprising a base, a cabin, a bed, a bridge, a traction structure, a three-dimensional scanning system and a motor drive system; during measurement, the bed motor drives the bed to move into the cabin, and the three-dimensional scanning system performs a three-dimensional structural scan on the object to be measured on the bed to obtain a three-dimensional model of the object to be measured; based on the three-dimensional model of the object to be measured, the horizontal position information and height information of the area of ​​interest are obtained; based on the horizontal position information, the bridge motor drives the bridge to move horizontally to a specified position so that the area of ​​interest falls within the horizontal projection range of the magnetocardiographic sensor; based on the height information, the traction motor drives the magnetocardiographic sensor to descend to a specified height and maintain a preset safety distance from the object to be measured. With such a configuration, the position of the bridge and the magnetocardiographic sensor can be accurately controlled, and electromagnetic interference caused by the motor entering the cabin can be avoided, and the user experience and safety can be improved, and fully automated measurement can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a magnetocardiographic measurement device and a magnetocardiographic measurement method. Background Art

[0002] Common cardiovascular examinations currently include: exercise stress test, echocardiogram, coronary artery CT examination, myocardial enzyme test, angiography and cardiac radionuclide examination. Some of these methods will cause radiation to the subject; some only display one-dimensional or two-dimensional images, and the representation information is not comprehensive; and some require the patient to be injected or swallowed with reagents, causing pain or psychological pressure to the subject. The above methods will cause varying degrees of damage to the subject's physiology or psychology, so a measuring device that does not generate radiation to people and does not require injection or swallowing of reagents is needed.

[0003] Magnetocardiography is currently a new method for collecting three-dimensional images of the heart and analyzing the condition. Its principle is: using the electromagnetic shielding effect of the magnetic shielding cabin to provide a non-magnetic environment, and then using an atomic magnetometer close to the human heart in the non-magnetic environment to capture weak magnetic fields, and after measurement and analysis, three-dimensional images and other representations are obtained. During the measurement, the atomic magnetometer and the person being measured need to be in the magnetic shielding cabin at the same time. This magnetic heart measurement method requires the atomic magnetometer to be accurately positioned and placed, and the parts around the sensor will not affect the magnetic field. However, the atomic magnetometer is usually positioned manually or semi-manually, which will cause inaccurate positioning problems. And if the motor directly drives the displacement nearby, the motor will interfere with the magnetic field around the atomic magnetometer, causing the measurement results to be affected.

[0004] Therefore, there is a need for a magnetic heart measurement device and method that is safe, radiation-free, does not require injection or swallowing of reagents, has effective magnetic shielding, and can be positioned with high precision. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a magnetocardiographic measurement device and a magnetocardiographic measurement method, aiming to solve the problems of inaccurate positioning of magnetocardiographic measurement in the prior art, easy interference during measurement, and cumbersome and complicated measurement process.

[0006] To achieve the above-mentioned purpose, the present invention provides a magnetocardiographic measurement device, comprising a base, a cabin, a bed, a bridge, a traction structure, a three-dimensional scanning system and a motor drive system; the cabin is fixed on the base; the bed is slidably arranged on the base and is located in the inlet and outlet direction of the cabin; the bridge is slidably arranged on the bed, and a magnetocardiographic sensor is integrated on the bridge, and the magnetocardiographic sensor is connected to the traction structure; the three-dimensional scanning system is integrated at the inlet and outlet position of the cabin to perform a three-dimensional structural scanning of the object to be measured on the bed; the three-dimensional scanning system is communicatively connected with the motor drive system; the motor drive system comprises a bed motor, a bridge motor and a traction motor arranged outside the cabin; the bridge motor and the traction motor are both installed on the bed; the bed motor is installed on the base; the bed motor is used to drive the bed to enter and exit the cabin under the control of the three-dimensional scanning system; the bridge motor is used to drive the bridge to move along the bed under the control of the three-dimensional scanning system; the traction motor is used to drive the traction structure to drive the magnetocardiographic sensor to move up and down under the control of the three-dimensional scanning system.

[0007] In an optional embodiment, the bed has an initial state and a cabin entry state, and can switch back and forth between the initial state and the cabin entry state; in the initial state, the bed is outside the cabin, the front end of the bed is close to the inlet and outlet of the cabin, and the bridge is inside the cabin and in an initial position; in the cabin entry state, most of the bed enters the cabin, and the rear end of the bed is outside the cabin, so that the bridge motor and the traction motor installed at the rear end of the bed do not enter the cabin.

[0008] In an optional embodiment, the bridge motor and the traction motor are both installed at the rear end bottom of the bed, the length of the bed is greater than the inner cabin depth of the cabin, and in the cabin entry state, the rear end of the bed is close to the inlet and outlet of the cabin.

[0009] In an optional embodiment, the bridge motor and the traction motor are adjacent to and staggered with each other, and the output end of the bridge motor is connected to a non-metallic transmission shaft, and the non-metallic transmission shaft is connected to the bridge through one side of the traction motor.

[0010] In an optional embodiment, in addition to the initial position, the bridge also has a designated position and is able to move back and forth between the initial position and the designated position, and the bridge is configured to move only in the area between the front end and the middle of the bed; in the initial position, the bridge is inside the cabin and close to the entrance and exit of the cabin; the bridge is driven to move from the initial position toward the rear end of the bed to the designated position, and in the designated position, the area of ​​interest of the object under test falls within the horizontal projection range of the magnetocardiographic sensor.

[0011] In an optional embodiment, a baseline is provided on the bed near the front end, and in an initial state, the baseline is located between the bridge and the surface features on the object being measured; the three-dimensional scanning system is used to determine the position of the baseline as a reference position for controlling the horizontal movement of the bridge.

[0012] In an optional embodiment, the traction structure includes a main traction body, an adapter block and a guide structure; the adapter block is arranged in front of the traction motor; the main traction body is wound around the traction motor and is divided into two traction bodies through the adapter block; the two traction bodies pass through the sides of the bed and the bridge respectively, and are guided by the guide structure, and finally pass through the bridge from above to connect with the magnetic heart sensor.

[0013] In an optional embodiment, the guide structure is a guide wheel, and a plurality of the guide wheels are distributed on the sides of the bed and the bridge.

[0014] In an optional embodiment, the bridge includes a bridge frame, one side or both sides of the bridge frame are slidably mounted on the bed; the magnetic heart sensor includes a base and a plurality of atomic magnetometers; the plurality of atomic magnetometers are mounted on the base; the traction structure is connected to the base; and at least one pulley is respectively provided on the left and right sides of the base, and at least one guide column is respectively provided on the left and right sides of the bridge frame, and the pulley cooperates with the guide column so that the base rolls on the guide column through the pulley during the up and down movement.

[0015] In an optional embodiment, multiple groups of pulley structures are arranged on both sides of the base, each group of the pulley structures includes two pulleys distributed up and down or front and back, and each pulley can roll on the corresponding guide column.

[0016] In an optional embodiment, the three-dimensional scanning system is provided with four cameras on both sides of the inlet and outlet of the cabin, and the four cameras on the same side are arranged in an arc shape up and down.

[0017] Further, based on the same inventive concept, the present invention also provides a method for measuring magnetocardiography, which is performed based on any one of the magnetocardiography measuring devices, and comprises the following steps: S01: the three-dimensional scanning system controls the bed motor to drive the bed to move into the cabin, and during the movement, the three-dimensional scanning system performs a three-dimensional structural scan on the object to be measured on the bed, thereby obtaining a three-dimensional model of the object to be measured; S02: The three-dimensional scanning system obtains horizontal position information and height information of an area of ​​interest on the object to be measured based on the three-dimensional model of the object to be measured; S03: the three-dimensional scanning system controls the bridge motor to drive the bridge to move horizontally to a specified position based on the horizontal position information of the region of interest, so that the region of interest falls within the horizontal projection range of the magnetocardiographic sensor; S04: Based on the height information of the region of interest, the three-dimensional scanning system controls the traction motor to drive the magnetocardiographic sensor to descend to a specified height and maintain a preset safety distance from the object to be measured.

[0018] In an optional implementation, after step S04, the following steps are further included: S05: the three-dimensional scanning system controls the traction motor to drive the magnetocardiographic sensor to move upward and return to the initial position; S06: Keeping the bridge at the designated position, the three-dimensional scanning system controls the bed motor to drive the bed to move out of the cabin and return to the initial state; S07: Maintaining the bed in the initial state, the three-dimensional scanning system controls the bridge motor to drive the bridge to move from the designated position to the initial position, where the bridge is inside the cabin and close to the entrance and exit of the cabin.

[0019] In an optional implementation, before step S01, the method further includes: Control the bed to be in an initial state, in which the bed is outside the cabin, the front end of the bed is close to the entrance and exit of the cabin, and the bridge is inside the cabin and in the initial position. When the bed is in the initial state, the three-dimensional scanning system records the position of the baseline on the bed, determines the position of the baseline as the reference position for the horizontal movement of the bridge, and after recording the position of the baseline, execute step S01; When executing step S03, the three-dimensional scanning system controls the bridge motor to drive the bridge to move horizontally to the specified position based on the horizontal position information of the area of ​​interest, the horizontal distance from the bridge to the baseline, and the horizontal distance from the identified surface features on the object to be measured to the baseline.

[0020] In an optional embodiment, when executing step S03, it also includes: the three-dimensional scanning system controls the traction motor to synchronously tighten the traction structure so that the relative position of the magnetocardiogram sensor and the bridge remains unchanged, and the magnetocardiogram sensor is in an initial position.

[0021] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects: The present invention can perform a three-dimensional structural scan on the object to be measured through a three-dimensional scanning system, accurately identify the position of the human heart, and then control the position of the bridge and the heart magneto sensor according to the identified human heart position. Compared with visual inspection by human eyes, the positioning accuracy is higher, which is convenient for accurately detecting the magnetic field around the human heart and improving the operability of heart magnetometry detection. In addition, by arranging all motors outside the cabin, the influence of the motor on the environment inside the cabin can be avoided. Of course, all materials entering the cabin are also made of materials that are not easily magnetized, which can avoid electromagnetic interference from parts around the sensor. In addition, by communicating with the three-dimensional scanning system and the motor drive system, the three-dimensional scanning system also has a motor control function, so that the operation of each motor can be automatically controlled to realize the full automation of the entire measurement process. Not only is the entire measurement process simpler and more convenient, but the measurement results are more stable and reliable. Finally, the efficiency and accuracy of heart magnetometry detection can be improved, and the detection cost can be reduced. Furthermore, when positioning the heart magnetometry sensor, by controlling the heart magnetometry sensor to drop to a specified height and not contacting the object to be measured, the experience of heart magnetometry detection can be improved, and it will not cause harm to the human body, and the safety is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to better understand the present invention and shall not constitute improper limitations of the present invention.

[0023] Figure 1 It is a side view of a magnetocardiometric measurement device provided according to an embodiment of the present invention, wherein the bridge shown in the figure is in an initial position, wherein the bridge in the initial position is located inside the cabin and close to the inlet and outlet of the cabin, and the bed shown in the figure is in an initial state.

[0024] Figure 2 It is a side view of a magnetocardiometric measurement device provided according to an embodiment of the present invention, in which most of the bed is moved into the cabin and is in the cabin entry state, and the bridge has moved from the initial position to the specified position.

[0025] Figure 31 is a side view of a magnetocardiometric measuring device provided according to an embodiment of the present invention, in which the bed and the bridge are both moved out of the cabin, but the bridge remains in a designated position.

[0026] Figure 4 It is a front view of a bridge provided according to an embodiment of the present invention.

[0027] Figure 5 It is a side view of a bridge provided according to an embodiment of the present invention.

[0028] Figure 6 1 is a top view of a magnetocardiometric measuring device provided according to an embodiment of the present invention, wherein the bridge (dashed line) shown in the figure is located inside the cabin and close to the inlet and outlet of the cabin.

[0029] Figure 7 1 is a front view of a magnetocardiometric measurement device according to an embodiment of the present invention. The three-dimensional scanning system shown in the figure has a certain curvature on both sides of the inlet and outlet of the cabin.

[0030] Figure 8 It is a partial schematic diagram of a magnetocardiometric measurement device provided according to an embodiment of the present invention, wherein the base shown in the figure cooperates with the guide columns on the left and right sides of the bridge frame through the pulleys on the left and right sides.

[0031] Fig. 9 It is a flow chart of magnetocardiography measurement provided according to one embodiment of the present invention.

[0032] In the accompanying drawings: 100-cabin, 200-bed, 201-bed motor, 300-bridge, 301-bridge motor, 302-traction motor, 303-pulley, 304-magnetic heart sensor, 305-base, 306-bridge frame, 307-atomic magnetometer, 308-guide column, 400-traction structure, 401-main traction body, 402-adapter block, 403-guide structure, 404-first traction body, 405-second traction body, 101-three-dimensional scanning system, 102-baseline, 500-base. DETAILED DESCRIPTION

[0033] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner, and only the components related to the present invention are shown in the figure instead of being drawn according to the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be a random change, and the component layout type may also be more complicated.

[0034] In addition, each embodiment of the following description has one or more technical features, but this does not mean that the user of the present invention must implement all the technical features in any embodiment at the same time, or can only implement part or all of the technical features in different embodiments separately. In other words, under the premise that implementation is possible, those skilled in the art can selectively implement part or all of the technical features in any embodiment according to the disclosure of the present invention and according to the design specifications or implementation requirements, or selectively implement a combination of part or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.

[0035] As used in this specification, the singular forms "one", "an", and "the" include plural objects, and the plural form "a plurality" includes more than two objects, unless the content clearly indicates otherwise. As used in this specification, the term "or" is generally used in a sense that includes "and / or", unless the content clearly indicates otherwise, and 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 directly connected or indirectly connected through an intermediate medium, and it can be a connection between two elements or an interactive relationship between two elements. Relational terms such as the terms "first", "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, nor do they indicate or imply relative importance or implicitly indicate the number of technical features indicated. It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In order to make the purpose, advantages and features of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings. It should be noted that the drawings are all in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar components.

[0037] like Figures 1 to 7As shown, an embodiment of the present invention provides a magnetic heart measurement device, including: a base 500, a three-dimensional scanning system 101, a cabin 100, a bed 200, a bridge 300, a traction structure 400 and a motor drive system. Among them, the cabin 100 is a magnetic shielding cabin, which is usually a multi-layer structure and has a good magnetic shielding effect. The cabin 100 is fixed on the base 500, and the cabin 100 and the base 500 are of an integrated design or a split design, which is not limited by the present invention. In addition, the cabin 100 has an inlet and outlet (not marked), and the inlet and outlet are usually one. In addition, the three-dimensional scanning system 101 is integrated at the position of the inlet and outlet of the cabin 100, that is, the three-dimensional scanning system 101 is integrated on the cabin 100 to form a whole.

[0038] It should be noted that the position of the entrance and exit of the three-dimensional scanning system 101 integrated on the cabin 100 should be understood as that the camera of the three-dimensional scanning system 101 is set at the position of the entrance and exit of the cabin 100. For example, in this embodiment, multiple cameras are respectively set on both sides of the entrance and exit of the cabin 100, that is, at least two cameras are set on each side of the entrance and exit, and more appropriately, four cameras are set on each side of the entrance and exit. The four cameras on the same side can scan both flat surfaces and non-flat surfaces, thereby providing higher accuracy and resolution, and performing more accurate identification and positioning. In addition, the three-dimensional scanning system 101 also has functions such as image processing analysis, modeling, and transmitting signals to the motor drive system, so as to realize full automation of magnetic heart detection and high-precision positioning. In addition, except for the camera integrated on the cabin 100, the image processing part and the motor control part in the three-dimensional scanning system 101 are not integrated in the cabin 100, but are installed on the base 500, for example, installed between the base 500 and the cabin 100. The image processing part and the motor control part can be integrated into one in the physical space, or they can be independently set in the physical space. For example, in this embodiment, only a control chassis needs to be set to realize image processing and motor control.

[0039] The present invention integrates a three-dimensional scanning system 101 specially designed for measuring human body structure on both sides of the entrance and exit of the cabin 100. When the human body enters the cabin 100 along with the bed 200, the system can use structured light to quickly scan a large area of ​​the human body, and build a three-dimensional model in real time. The chest height and the area where the heart is located can be calculated in a short time. Compared with the traditional three-dimensional scanning device that needs to move continuously for scanning, the operation is simpler and more convenient. In particular, when four cameras are set on each side of the entrance and exit of the cabin 100, the four cameras on the same side are arranged in an arc shape up and down, and the scanning accuracy is higher. In an embodiment of the present invention, the scanning accuracy of the three-dimensional scanning system 101 can reach 0.1 mm, so that the human body structure (the position of the human chest and heart) can be accurately identified, thereby ensuring the positioning accuracy of the bridge 300 and the magnetic heart sensor 304. In more detail, such as Figure 6 and Figure 7 As shown, the three-dimensional scanning system 101 protrudes a certain length toward the rear end of the bed 200 at the entrance and exit of the cabin 100 and is configured to have a certain curvature. The curvature structure enables the three-dimensional scanning system 101 to scan non-flat surfaces.

[0040] Specifically, the three-dimensional scanning system 101 can be used to perform a three-dimensional structural scan on the scanned object to obtain the three-dimensional point cloud data of the scanned object, and then the three-dimensional model of the scanned object can be reconstructed based on the three-dimensional point cloud data. Therefore, the three-dimensional scanning system 101 has the function of a structured light scanner and can perform three-dimensional scanning based on the structured light principle. The content of structured light scanning is the existing technology that can be known to those skilled in the art, so it is not described here. In the embodiment of the present invention, the three-dimensional scanning system 101 is used to perform a three-dimensional structural scan on the object to be tested (i.e., the person to be tested) on the bed 200, and then first establish a three-dimensional model of the object to be tested based on the scanned data, and then analyze and obtain the chest height and heart position based on the three-dimensional model of the object to be tested, and then generate the control conditions corresponding to the motor drive system based on the chest height and heart position, and finally, control the running state of the motor drive system based on the control conditions. Since the present invention aims to obtain the chest height and heart position of the object to be tested, the region of interest mentioned in the following text mainly refers to the area where the chest cavity of the object to be tested is located (or the heart area). For this reason, during actual measurement, preferably, the three-dimensional scanning system 101 only needs to scan the upper body of the object being measured, rather than the entire body. This is mainly for magnetocardiography measurement, which only requires scanning the upper part of the human body. If other parts need to be scanned, different scanning ranges can also be set.

[0041] In addition, the three-dimensional scanning system 101 can also transmit signals to the motor drive system, so that the three-dimensional scanning system 101 can also control all motors described later. In this regard, the three-dimensional scanning system 101 is connected to the motor drive system in a communication manner, and the communication connection method between the two is not limited.

[0042] like Figures 1 to 3 As shown, the motor drive system includes a bed motor 201, a bridge motor 301 and a traction motor 302, and these motors are all connected to the three-dimensional scanning system 101. In addition, if the motor is placed in the cabin 100 or close to the cabin 100, electromagnetic interference will be generated to the measurement. Therefore, in the embodiment of the present invention, the bed motor 201, the bridge motor 301 and the traction motor 302 are all arranged outside the cabin 100, preferably away from the cabin 100, which can effectively avoid affecting the environment inside the cabin 100 and ensure the accuracy of the measurement results.

[0043] In this way, during actual use, the bed motor 201 can drive the bed 200 in and out of the cabin 100 under the control of the three-dimensional scanning system 101, thereby ensuring operational efficiency and accuracy; and the bridge motor 301 can drive the bridge 300 to move horizontally along the bed 200 as a whole under the control of the three-dimensional scanning system 101, thereby ensuring the stability and displacement accuracy of the bridge 300; in addition, the traction motor 302 can drive the traction structure 400 to move the magnetocardiogram sensor 304 up and down under the control of the three-dimensional scanning system 101, thereby ensuring the positioning accuracy of the magnetocardiogram sensor 304 and also improving safety.

[0044] In the specific configuration, the bed motor 201 is mounted on the base 500 and is arranged away from the cabin 100. Preferably, the bed motor 201 is mounted inside the base 500 and close to the rear end of the base 500 away from the cabin 100. In addition, the bridge motor 301 and the traction motor 302 are both mounted on the bed 200 and can move with the movement of the bed 200, so that the bridge motor 301 and the traction motor 302 always maintain a relative position unchanged with the bed 200. Preferably, the bridge motor 301 and the traction motor 302 are both mounted on the bottom of the rear end of the bed 200 away from the cabin 100. Preferably, the length of the bed 200 is slightly greater than the inner cabin depth of the cabin 100. When the bed 200 enters the cabin 100 and reaches the limit position, a part of the bed 200 can be reserved outside the cabin 100, thereby preventing the bridge motor 301 and the traction motor 302 from entering the cabin 100 and causing no electromagnetic interference. For example, when the bridge motor 301 and the traction motor 302 are both arranged at the rear end bottom of the bed 200 away from the cabin 100, when the bed 200 enters the cabin 100, the rear end of the bed 200 is close to the entrance and exit of the cabin 100, so the bridge motor 301 and the traction motor 302 can be controlled to be exactly at the entrance and exit of the cabin 100 without entering the cabin 100. The bed 200 does not need to be set too long, and the length of the entire equipment can be effectively controlled.

[0045] Continue to refer to Figure 1~Figure 3 In an optional embodiment, the bridge motor 301 and the traction motor 302 are adjacent and staggered. In the illustrated structure, the bridge motor 301 is farther away from the cabin 100 than the traction motor 302. Of course, in other examples, the bridge motor 301 can be closer to the cabin 100 than the traction motor 302. The output end of the bridge motor 301 can be connected to a non-metallic transmission shaft (not marked), which can be installed at the bottom of the bed 200. The non-metallic transmission shaft is rigidly connected to the bridge 300 to control the overall forward and backward movement of the bridge 300. The non-metallic transmission shaft is made of a material that is not easily magnetized, so even if it enters the cabin 100, it will not cause interference. Preferably, the non-metallic transmission shaft is made of flame-retardant material. Optionally, the non-metallic transmission shaft is connected to the bridge 300 at the bottom of the bed 200 through one side of the traction motor 302.

[0046] In addition, the traction motor 302 is flexibly connected to the magnetic heart sensor 304 through the traction body to control the magnetic heart sensor 304 to move up and down. It should be noted that the bridge motor 301 and the bridge 300 are rigidly connected, and the bed motor 201 and the bed 200 are also rigidly connected. The bed motor 201 and the bed 200 can be connected through a metal transmission shaft. Since the metal transmission shaft does not enter the cabin 100, it will not affect the measurement results.

[0047] Specifically, the bed 200 is slidably mounted on the base 500 and is located at the entrance and exit direction of the cabin 100; the bed 200 is used to provide a lying position for the person to be tested for magnetic heart. Specifically, a bed motor 201 is provided at the bottom of the bed 200 away from the cabin 100, and the bed motor 201 controls the bed 200 to enter and exit the cabin 100, and the bed 200 enters and exits in a straight line along the internal guide rail of the cabin 100.

[0048] Preferably, the bed body 200 has an initial state and a cabin entry state, and can switch back and forth between the initial state and the cabin entry state. Figure 1 As shown, in the initial state, the bed 200 is outside the cabin 100, and the front end of the bed 200 is preferably close to the entrance and exit of the cabin 100. At this time, the bridge 300 is inside the cabin 100 and is in the initial position. This arrangement makes it convenient for the person to be tested to enter the bed 200, and the bridge 300 will not block the person to be tested from entering the bed 200. Then, when the person to be tested lies flat on the bed 200, the bed 200 will bring the person to be tested into the cabin 100. At this time, since the bridge 300 is always in the cabin 100 and will not follow the bed 200 through the three-dimensional scanning system 101, the bridge 300 will not block the human body and will not affect the scanning of the three-dimensional scanning system 101. Figure 2 As shown, in the cabin entry state, most of the bed 200 enters the cabin 100, and the rear end of the bed 200 is arranged outside the entrance and exit of the cabin 100, so that the traction motor 302 and the bridge motor 301 installed at the rear end of the bed 200 do not enter the cabin 100, avoiding electromagnetic interference.

[0049] Moreover, the bridge frame 300 needs to be slidably mounted on the bed 200 so as to be able to move along the bed 200. Preferably, the bridge frame 300 moves only within the front half (or upper half) of the bed 200. The front half corresponds to the area between the front end and the middle of the bed 200, and the middle of the bed 200 can be an absolute middle position or a position between the front end and the rear end. Figure 1As shown, in the initial state, the front end of the bed 200 is adjacent to the entrance and exit of the cabin 100, while the rear end of the bed 200 is away from the entrance and exit of the cabin 100. In practice, a certain length of slide grooves or slide rails can be set on both sides or one side of the front half of the bed 200 for the bridge 300 to move within the front half of the bed 200. In short, for magnetic heart measurement, if the moving range is too large, the scanning time will be increased, the efficiency will be reduced, and the energy consumption will be increased. In addition, after the moving range is increased, the transmission needs to be strengthened, more traction materials need to be used, and the cost will be increased. Therefore, when the bridge 300 moves only within the upper half of the human body, the cost can be reduced, the efficiency can be improved, and the strength can be guaranteed at the same time. For example, when grooves are opened on both sides of the bed 200 for the bridge 300 to move, the grooves do not need to be too large, and will not affect the strength and supporting performance of the bed 200.

[0050] It should also be noted that when the bridge 300 is set, one or both sides of the bridge 300 can be slid onto the bed 200, or in other words, the structure of the bridge frame 306 described below includes but is not limited to the rectangular frame or similar structure described in the figure. In fact, the bridge frame 306 can be made into various shapes as long as the magnetic heart sensor 304 can be positioned above the chest of the subject. As an option, Figure 4 As shown, the bridge frame 306 is a rectangular frame, and the two sides are slidably arranged on the two sides of the bed 200, so that the bridge frame 300 as a whole spans above the bed 200. Such a structure is more stable and reliable.

[0051] Furthermore, the bridge 300 has a designated position in addition to an initial position, and can move back and forth between the initial position and the designated position. Figure 1 As shown, in the initial position, the bridge 300 is inside the cabin 100 and preferably arranged close to the entrance and exit of the cabin 100. After the bed 200 enters the cabin 100, the bridge 300 is driven to move from the initial position to the rear end of the bed 200 to the designated position. At the designated position, the region of interest (human heart region) falls exactly within the horizontal projection range of the magnetic heart sensor 304, thus achieving horizontal positioning.

[0052] Figure 4 and Figure 5In the embodiment, the bridge 300 is also integrated with a cardiac magneto sensor 304. The cardiac magneto sensor 304 is used to measure the magnetic field around the human heart, and the cardiac magneto sensor 304 is connected to the traction structure 400. Specifically in this embodiment, the bridge 300 includes a bridge frame 306, one side or both sides of the bridge frame 306 are slidably arranged on the bed 200 so as to be able to move horizontally along the bed 200; then, the cardiac magneto sensor 304 is directly mounted on the bridge frame 306. Moreover, the cardiac magneto sensor 304 includes a base 305 and a plurality of atomic magnetometers 307; the plurality of atomic magnetometers 307 are mounted on the base 305 to form a whole; and the base 305 is directly connected to the traction structure 400, specifically, the traction body is directly connected to the base 305 through the bridge frame 306 to control the base 305 to move up and down. As shown in the figure, the base 305 and the atomic magnetometer 307 are both arranged on the inner side of the bridge frame 306 and located above the bed 200 .

[0053] The present invention does not specifically limit the number and arrangement of the atomic magnetometers 307. Generally, the magnetic heart sensor 304 uses a certain number of atomic magnetometers 307, and the atomic magnetometers 307 are usually evenly distributed, such as a matrix or other evenly arranged. Preferably, the atomic magnetometer 307 is in the form of a matrix array, because the human body can be approximately regarded as a rectangle, the matrix array has a larger effective measurement range and fits the human body better. If a circular array or other structure is used, it will occupy more space and have a lower effective measurement range. Problems such as. It is worth noting that the present invention measures the human body's magnetic field by using the atomic magnetometer 307 to obtain measurement results such as three-dimensional images, and can obtain accurate data at a lower cost without causing radiation effects on the human body. In addition, compared with the cost of CT scanning equipment, it is low, and before the test, there is no need to swallow reagents or use a syringe for injection, which provides a better experience.

[0054] Preferably, the left and right sides of the base 305 are in slidable contact with the left and right sides of the bridge frame 306. In this way, the base 305 can be supported by the bridge frame 306, and the up and down movement direction of the base 305 can be limited by the bridge frame 306 to ensure the displacement accuracy, thereby ensuring the positioning accuracy of the magnetocardiographic sensor 304. Preferably, the left and right sides of the base 305 are in rolling contact with the left and right sides of the bridge frame 306, thereby reducing friction, ensuring the accuracy of linear displacement, and improving the texture and the user experience.

[0055] like Figure 4~Figure 5 , and combined with Figure 8As shown, in an optional embodiment, at least one pulley 303 is provided on the left and right sides of the base 305, and at least one guide column 308 is provided on the left and right sides of the bridge frame 306, respectively. The pulley 303 cooperates with the guide column 308 so that the base 305 rolls on the guide column 308 through the pulley 303 during the up and down movement. That is, the base 305 makes a linear motion along the guide column 308 on the bridge frame 306 under the action of gravity and tension with the help of the pulleys 303 on the two opposite sides. By setting the pulley 303, the movement of the base 305 of the magnetic heart sensor 304 can be kept linear, and the damping can be reduced, so that the sliding is smoother, thereby increasing the use experience. Secondly, the pulley 303 can reduce or avoid wear, extend the service life, and reduce noise.

[0056] More preferably, one or more pulley structures are arranged on both sides of the base 305, each pulley structure includes two pulleys 303 distributed up and down or front and back, and all pulleys 303 cooperate with corresponding guide posts 308, so that the use effect of this structure is better. In the structure described in the figure, two pulley structures are arranged on each side of the base 305, and the two pulley structures are distributed front and back, and each pulley structure includes two pulleys 303 distributed up and down, and two guide posts 308 are arranged on each side of the bridge frame 306, and the two guide posts 308 are distributed front and back. In specific implementation, a fixing plate can be added to each side of the base 305, and the fixing plate extends downward beyond the base 305 to connect the fixing pulley 303. The fixing plate and the base 305 can be made in one piece, or they can be made separately and assembled together in a suitable manner.

[0057] On the other hand, the present invention does not limit the number of traction bodies in the traction structure 400. For example, one, two or more traction bodies may be used. Regardless of the number of traction bodies, one end of each traction body is connected to the traction motor 302, and the other end is connected to the magnetic heart sensor 304, specifically to the base 305. Moreover, the traction body may be made of various non-metallic flexible materials, as long as the material is not easily magnetized. For example, the traction body may be made of nylon wire, polyester wire, polypropylene wire, carbon wire, PE wire or other suitable materials. More preferably, the traction body uses nylon wire, which can better reduce costs and has relatively better performance. Compared with rigid transmission, since the traction structure 400 is a flexible transmission, it is not only simple in structure, saves space, and reduces costs, but also easy to use non-magnetic materials, which is easy to implement and can achieve a better non-magnetic effect.

[0058] refer to Figure 4 and Figure 5In an optional embodiment, the traction structure 400 includes a main traction body 401, a transfer block 402 and a guide structure 403; the transfer block 402 is arranged in front of the traction motor 302, and the front is a position closer to the bridge 300; the main traction body 401 is wound around the traction motor 302, and is divided into two independent first traction bodies 404 and second traction bodies 405 through the transfer block 402; the first traction body 404 and the second traction body 405 pass through the sides of the bed 200 and the bridge 300 respectively, and are guided by the guide structure 403, and finally pass through the bridge 300 from above the bridge 300 to connect with the base 305 of the magnetic heart sensor 304. In fact, the first traction body 404 and the second traction body 405 are wired along two independent paths. For example, the first traction body 404 is wired along the left side of the bridge frame 300 and the bed 200, and the second traction body 405 is wired along the right side of the bridge frame 300 and the bed 200. Finally, the first traction body 404 enters the interior of the bridge frame 300 from above the bridge frame 300 and is connected to the base 305. It is worth noting that the present invention converges the two strands of wire into one strand by setting a transfer block 402 in front of the traction motor 302, and finally winds it on the winding wheel of the traction motor 302. In this way, the length and position of the two traction bodies can be more accurately controlled to ensure the position accuracy of the magnetic heart sensor 304. The setting of the transfer block 402 also allows the left and right traction bodies to remain parallel, so that the two traction bodies will not be entangled with each other, and after being converged into a thicker main traction body 401, it is wound on the traction motor 302 separately, which can prevent entanglement and ensure strength. Alternatively, in other examples, the two traction bodies are independently wound on the traction motor 302.

[0059] When the present invention controls the up and down movement of the magnetic heart sensor 304 through the traction structure 400, it is only necessary to route the traction body along the side of the bed 200 and the bridge frame 306. It is easy to install and use, which can not only ensure the normal operation of the equipment, but also hide the traction body, maintain safety and aesthetics, and will not cause electromagnetic interference. During the wiring process, a guide structure 403 can also be set on the side of the bed 200 and the bridge frame 306 to adjust the direction of the traction body and maintain the tension of the traction body. The guide structure 403 can adjust the direction of the traction body through various structures. Preferably, the guide structure 403 is a guide wheel as shown in the figure, so that the traction body can slide on the guide wheel, reduce friction, and improve displacement accuracy. In practice, a certain number of guide wheels can be installed on the sides of the bed 200 and the bridge frame 306, and the specific number is not limited.

[0060] For the convenience of description, the present invention will be described in detail using the magnetocardiographic measurement device with two traction bodies. Those skilled in the art may modify the description of the embodiment of the present invention to adapt to the situation where the traction bodies have other numbers. Next, the measurement method of the magnetocardiographic measurement device will be further described in detail.

[0061] The embodiment of the present invention further provides a method for measuring magnetocardiography, which is performed based on the magnetocardiography measuring device provided by any embodiment of the present invention. A process of the method for measuring magnetocardiography is as follows: Fig. 9 As shown, including: Step S01, the three-dimensional scanning system 101 controls the bed motor 201 to drive the bed 200 to move into the cabin 100, and during the movement, the three-dimensional scanning system 101 performs a three-dimensional structural scan on the object to be measured on the bed 200 to obtain a three-dimensional model of the object to be measured, such as a three-dimensional model of the upper body of a human body; Step S02: The three-dimensional scanning system 101 obtains horizontal position information and height information of a region of interest (i.e., a heart region) on the object under test based on the three-dimensional model of the object under test; here, the region of interest is mainly the heart region (or chest region), the horizontal position information specifically refers to the heart position, and the height information refers to the chest height; Step S03, the three-dimensional scanning system 101 controls the bridge motor 301 to drive the bridge 300 to move horizontally to a specified position based on the horizontal position information of the region of interest, so that the region of interest (heart region) falls exactly within the horizontal projection range of the magnetocardiographic sensor 304; in this step, the three-dimensional scanning system 101 usually also needs to control the traction motor 302 to synchronously tighten the traction body, so that the relative position of the magnetocardiographic sensor 304 and the bridge 300 remains unchanged, and the magnetocardiographic sensor 304 is in the initial position; Step S04, based on the height information of the area of ​​interest, the three-dimensional scanning system 101 controls the traction motor 302 to drive the magnetocardiogram sensor 304 to descend to a specified height and maintain a preset safety distance from the object to be measured, so as to measure the magnetic field around the human heart; in this step, the magnetocardiogram sensor 304 maintains a non-contact relationship with the object to be measured, which has good safety, and at the same time, the measurement accuracy of the magnetocardiogram is guaranteed by controlling the descent height.

[0062] Preferably, the preset safety distance is 1 cm to 2 cm, more preferably 1 cm. In this way, when the magnetocardiographic measurement device provided by the embodiment of the present invention is used for magnetocardiographic detection, fully automated measurement can be achieved, the stability and reliability of the measurement results can be improved, and the efficiency of magnetocardiographic detection can be improved, the detection time can be shortened, and the detection cost can be reduced. It is also worth noting that all materials entering the cabin 100 are made of non-metallic or titanium alloy materials that are not easily magnetized, so no electromagnetic interference will be generated, and the accuracy of the measurement results can be guaranteed.

[0063] However, in the prior art, the bridge is usually positioned above the heart by the operator visually measuring the distance and manually adjusting the bridge position, and then manually lowering the magnetic heart sensor 304 until it reaches a certain point above the human heart. This method of operation may cause the operator to have problems with inaccurate distance control, and may even often cause the magnetic heart sensor 304 to hit the chin or other parts of the person being measured during the descent. The present invention uses the three-dimensional scanning system 101 to accurately identify the human body structure in advance, and then calculates and analyzes the chest height and heart position, thereby overcoming the problem of inaccurate positioning caused by the human eye judging the heart position. Moreover, the three-dimensional scanning system 101 has high measurement accuracy, which can ensure that the magnetic heart sensor 304 will not hit the chin or other parts of the person being measured when it descends, and has good safety.

[0064] In addition, for the positioning of the magnetic heart sensor 304, if the magnetic heart sensor 304 is first controlled to press against the human chest, and the traction motor 302 starts to reverse after recognizing that the load has changed, so that the magnetic heart sensor 304 is lifted a certain distance, this method will compress the human body, not only causing psychological pressure on the person, but also if the patient has chest tightness, chest pain, trauma, etc., the sensor may cause harm to the human body. Therefore, the present invention first identifies the height of the human chest through the three-dimensional scanning system 101, and then controls the traction motor 302 to drive the magnetic heart sensor 304 to directly descend to a position 1cm~2cmm away from the human body, without the need to make the magnetic heart sensor 304 press against the chest first and then lift it, and can control the movement accuracy to 0.5 mm, which not only avoids harm to the human body, but also achieves high-precision positioning.

[0065] On the other hand, if the bridge 300 and the magnetocardiographic sensor 304 are adjusted by hand crank or semi-automatic method, the process is slow and inefficient, and manual adjustment is prone to vibration, and the operation accuracy cannot be guaranteed. Therefore, the present invention drives the bed 200, the bridge 300 and the magnetocardiographic sensor 304 to move by a motor, thereby improving the operation efficiency and stability, avoiding the defects of manual and semi-manual adjustment, and making the displacement accuracy higher.

[0066] Furthermore, after the three-dimensional scanning system 101 performs a three-dimensional structural scan on the object to be measured, control conditions corresponding to the motor drive system can be generated according to the scanned data. Specifically, the control conditions include horizontal motion control conditions and up and down movement control conditions.

[0067] The three-dimensional scanning system 101 can generate horizontal motion control conditions corresponding to the bridge motor 301 according to the position of the heart, and then control the operating state of the bridge motor 301 based on the horizontal motion control conditions. The horizontal motion control conditions may include control information such as the rotation direction, rotation speed and stroke displacement corresponding to the bridge motor 301, ensuring that the bridge motor 301 can drive the bridge 300 to move to the specified position according to the preset horizontal motion control conditions, thereby achieving high-precision positioning.

[0068] The three-dimensional scanning system 101 can also generate up and down movement control conditions corresponding to the traction motor 302 according to the chest height, and then control the operating state of the traction motor 302 based on the up and down movement control conditions. The operating state of the up and down movement control conditions may include control information such as the rotation direction, rotation speed and stroke displacement of the traction motor 302, ensuring that the traction motor 302 can control the magnetic heart sensor 304 to descend to a specified height according to the preset up and down movement control conditions, thereby ensuring positioning accuracy.

[0069] like Figure 6 As shown, as an optional embodiment, a baseline 102 is provided near the front end of the bed 200, and in the initial state, the baseline 102 is located between the bridge 300 and the body surface feature on the object to be measured, so that it is convenient to measure the horizontal distance from the bridge 300 to the heart, that is, the three-dimensional scanning system 101 is used to determine the position of the baseline 102 as the reference position for controlling the horizontal movement of the bridge 300. The body surface feature can be the shoulder or other part of the object to be measured, but considering the convenience of measurement, it is the best way to use the shoulder as the body surface feature.

[0070] It is worth noting that the baseline 102 is used as a position reference to facilitate the distance correction and calculation of the three-dimensional scanning system 101. Since the camera of the three-dimensional scanning system 101 is installed on both sides of the entrance and exit of the cabin 100, in order to quickly locate the baseline 102, the baseline 102 needs to be within the detection range of the three-dimensional scanning system 101 or close to the scanning range at the beginning. Therefore, the position of the baseline 102 also needs to be close to the entrance and exit of the cabin 100 when the bed 200 is in the initial state, just like the three-dimensional scanning system 101, that is, the baseline 102 is near the three-dimensional scanning system 101. Secondly, when the human body lies flat on the bed 200, since the shoulders are naturally parallel to the baseline 102, the three-dimensional scanning system 101 will respectively identify the baseline 102 and the shoulders of the human body during the process of the human body entering the cabin 100, and analyze the horizontal distance between the baseline 102 and the shoulders. Furthermore, the three-dimensional scanning system 101 can calculate the distance that the bridge 300 needs to move above the heart of different objects being measured, that is, the three-dimensional scanning system 101 analyzes the position of the heart, and then the distance that the bridge 300 needs to move is: the distance from the heart to the shoulder, plus the distance from the shoulder to the baseline 102, plus the distance from the baseline 102 to the bridge 300. After obtaining the distance to be moved, the three-dimensional scanning system 101 subsequently issues a control instruction to the bridge motor 301 to move the bridge 300 to the specified position. It should also be known that in other embodiments, the baseline 102 may not be set, and the horizontal distance from the bridge 300 to the heart position can be directly determined.

[0071] Thus, in an optional embodiment, before step S01, the magnetocardiographic measurement method further includes: controlling the bed 200 to be in an initial state, in which the bed 200 is outside the cabin 100, and the front end of the bed 200 is close to the entrance and exit of the cabin 100, and the bridge 300 is set inside the cabin 100 and is in an initial position; when the bed 200 remains in the initial state, the three-dimensional scanning system 101 records the position of the baseline 102 on the bed 200, and determines the position of the baseline 102 as the reference position for the horizontal movement of the bridge 300, and records the position of the baseline 102. After the positioning, step S01 is executed again to drive the bed 200 to move into the cabin 100, and the three-dimensional scanning system 101 starts to scan the human body, record the body surface features, build a three-dimensional model, and identify the horizontal distance from the human shoulder (or other body surface features) to the baseline 102; then, when executing step S03, the three-dimensional scanning system 101 controls the bridge motor 301 to drive the bridge 300 to move horizontally to the specified position based on the horizontal position information of the area of ​​interest (such as the heart position), the horizontal distance from the bridge 300 to the baseline 102, and the identified horizontal distance from the human shoulder (or other body surface features) to the baseline 102. In this way, the operability and accuracy of the positioning of the bridge 300 are improved.

[0072] Continue to refer Fig. 9 In an optional implementation, the magnetocardiographic measurement method further includes the following steps: Step S05: the 3D scanning system 101 controls the traction motor 302 to drive the magnetocardiographic sensor 304 to move upward and return to the initial position; Step S06: After the magnetocardiographic sensor 304 returns to the initial position, the bridge 300 continues to be kept at the designated position, and then the three-dimensional scanning system 101 controls the bed motor 201 to drive the bed 200 to move out of the cabin 100 and return to the initial state; Step S07: After the bed 200 returns to the initial state, it continues to maintain the state, and then the three-dimensional scanning system 101 controls the bridge motor 301 to drive the bridge 300 to return from the specified position to the initial position, that is, in the initial position, the bridge 300 is inside the cabin 100 and preferably close to the entrance and exit of the cabin 100.

[0073] In more detail, as an example, the working principle of the magnetocardiographic measurement device is as follows: (1) In the initial state, the bed 200 is outside the cabin 100, and the bridge 300 is inside the cabin 100. The bridge 300 is preferably close to the entrance and exit of the cabin 100, such as Figure 1 As shown; (2) The object to be measured lies flat on the bed 200, and the three-dimensional scanning system 101 pre-records the position of the baseline 102 on the bed 200, and records the position of the baseline 102 as the reference position for the subsequent horizontal movement of the bridge 300, such as Figure 6 As shown; (3) If Figure 2 As shown, the bed motor 201 drives the bed 200 to move into the cabin 100. During this process, the three-dimensional scanning system 101 starts to perform a three-dimensional structural scan on the object to be measured, build a three-dimensional model, and identify the human shoulder. Then, the three-dimensional scanning system 101 uses the built three-dimensional model to identify the chest position and chest height of the object to be measured, and combines big data to analyze the area where the heart is located to obtain the heart position; (4) After obtaining the heart position, the three-dimensional scanning system 101 sends a command to the bridge motor 301 to control the bridge 300 to move to a specified position near the entrance and exit of the cabin 100 and then stop, so that the heart area of ​​the object being measured is just within the horizontal projection range of the base 305, as shown in FIG. Figure 2 As shown, at the same time, the traction motor 302 starts to rotate counterclockwise synchronously, and slowly tightens the traction body while the bridge 300 moves outward, so that the base 305 remains at the top of the bridge 300 (i.e., the initial position) during the movement with the bridge 300; (5) Since the three-dimensional scanning system 101 has determined the height of the chest cavity, after the bridge 300 moves to the specified position, the three-dimensional scanning system 101 sends a command to the traction motor 302 to control the traction motor 302 to rotate clockwise for a specified number of circles, release the traction body, and control the base 305 to vertically descend under the guidance of the pulley 303 until it stops at a height of 1 cm from the chest cavity; then the magnetic heart sensor 304 starts to measure the magnetic field at the position of the heart; however, in reality, the sensor probe will emit a certain magnetic field, but the probe needs to be heated to above 100°C during operation, so it is not suitable for direct contact with the human body; and too far away will affect the sensor's capture of the magnetic field, that is, affect the measurement effect. Therefore, as a preferred embodiment, under the premise of ensuring measurement accuracy, the position of the base 305 is determined to be 1 cm away from the human body; (6) After the measurement is completed, the traction motor 302 rotates counterclockwise to tighten the traction body, and controls the base 305 to move upward and return to the top of the bridge 300; (7) The bed motor 201 rotates counterclockwise, and the object to be measured and the bridge 300 maintain relative positions and move out of the cabin 100 along with the bed 200. Figure 3 As shown; (8) The bridge motor 301 rotates clockwise to drive the bridge 300 back into the cabin 100 and close to the entrance and exit. At the same time, the traction motor 302 rotates clockwise to release the traction body, so that the base 305 always remains on the top of the bridge 300; (9) Wait until all parts return to the original state. Figure 1 After the position relationship shown is obtained, the subject leaves the bed 200 , and the entire magnetic heart detection is completed.

[0074] Here, if the magnetocardiogram sensor 304 is fixed in the cabin 100, the posture and position of the object to be tested before entering the cabin need to be adjusted by the person to be tested on the bed 200, so as to reach the measurement position of the magnetocardiogram sensor 304 after entering the cabin; if it is not adjusted outside the cabin 100, the object to be tested needs to continue to adjust the position in the narrow space of the cabin 100 after entering the cabin, which makes the measurement process very cumbersome. Therefore, in the magnetocardiogram measurement method provided by the present invention, the person to be tested only needs to lie flat on the bed 200 to wait for the measurement to be completed, and the operator only needs to perform simple operations and monitoring, and after the measurement is completed, the bed 200 carries the person and the bridge 300 to maintain relative positions and move out of the cabin 100 synchronously. Subsequently, the bridge 300 is restored to the entrance and exit position of the cabin 100, and the person to be tested leaves, and the entire measurement process is very simple and convenient.

[0075] In addition, an embodiment of the present invention may also provide a readable storage medium, including a program or an instruction. When the program or the instruction is run on a computer, the magnetocardiographic measurement method described in any embodiment of the present invention is executed.

[0076] In summary, the magnetic heart measurement device provided by the embodiment of the present invention is an integrated and integrated device, which has the functions of three-dimensional structured light scanning, image processing, modeling, and signal transmission to the motor drive system. When performing magnetic heart measurement on the human body, it can realize full-automatic measurement. Compared with traditional magnetic heart measurement products, it has achieved integration, automation, and refinement, and the entire measurement process is also simpler and more convenient. Moreover, the movement of the bed 200, the bridge 300, and the magnetic heart sensor 304 does not require manual operation. Only the three motors need to cooperate with each other to achieve positioning, so that the measurement efficiency, stability, and displacement accuracy are higher. Furthermore, the three-dimensional scanning system 101 identifies the chest height and controls the base 305 of the magnetic heart sensor 304 to drop a specified distance. Compared with the traditional visual method, the accuracy is higher, and there is no need to press on the human body and then lift it up. It can ensure that the heart position falls exactly within the horizontal projection surface range of the base 305 (preferably in the center area of ​​the horizontal projection), ensuring the accuracy of magnetic heart measurement, and at the same time, it can prevent the base 305 from hitting the chin or other parts of the measured person, avoiding damage to the human body, and better safety.

[0077] Although the present invention is disclosed as above, it is not limited thereto. Those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the present invention description and its equivalent technology, the present invention is also intended to include these modifications and variations.

Claims

1. A magnetocardiographic measuring device, characterized in that: It includes a base, a cabin, a bed, a bridge, a traction structure, a 3D scanning system and a motor drive system; The cabin is fixed on the base; the bed is slidably mounted on the base and is located at the inlet and outlet direction of the cabin; the bridge is slidably mounted on the bed, and a magnetocardiographic sensor is integrated on the bridge, and the magnetocardiographic sensor is connected to the traction structure; The three-dimensional scanning system is integrated at the entrance and exit of the cabin to perform three-dimensional structural scanning of the object to be measured on the bed; the three-dimensional scanning system is communicatively connected with the motor drive system; The motor drive system comprises a bed motor, a bridge motor and a traction motor arranged outside the cabin; the bridge motor and the traction motor are both installed on the bed; the bed motor is installed on the base; The bed motor is used to drive the bed in and out of the cabin under the control of the three-dimensional scanning system; the bridge motor is used to drive the bridge to move along the bed under the control of the three-dimensional scanning system; the traction motor is used to drive the traction structure to move the magnetocardiogram sensor up and down under the control of the three-dimensional scanning system.

2. The magnetocardiographic measuring device according to claim 1, characterized in that: The bed has an initial state and a cabin entry state, and can switch back and forth between the initial state and the cabin entry state; In the initial state, the bed is outside the cabin, the front end of the bed is close to the inlet and outlet of the cabin, and the bridge is inside the cabin and in the initial position; In the cabin entry state, most of the bed enters the cabin, and the rear end of the bed is outside the cabin, so that the bridge motor and the traction motor installed at the rear end of the bed do not enter the cabin.

3. The magnetocardiographic measuring device according to claim 2, characterized in that: The bridge motor and the traction motor are both installed at the rear end bottom of the bed, the length of the bed is greater than the inner cabin depth of the cabin, and in the cabin entry state, the rear end of the bed is close to the inlet and outlet of the cabin.

4. The magnetocardiographic measuring device according to claim 3, characterized in that: The bridge motor and the traction motor are adjacent to each other and are arranged alternately, and the output end of the bridge motor is connected to a non-metallic transmission shaft, and the non-metallic transmission shaft is connected to the bridge through one side of the traction motor.

5. The magnetocardiographic measuring device according to claim 2, characterized in that: In addition to the initial position, the bridge also has a designated position and is capable of moving back and forth between the initial position and the designated position, and the bridge is configured to move only in the area between the front end and the middle of the bed; In the initial position, the bridge is inside the cabin and close to the inlet and outlet of the cabin; The bridge is driven to move from the initial position toward the rear end of the bed to the designated position, where the region of interest of the measured object falls within the horizontal projection range of the magnetocardiographic sensor.

6. The magnetocardiographic measuring device according to claim 2, characterized in that: A baseline is provided on the bed near the front end. In an initial state, the baseline is located between the bridge and the surface features of the object being measured. The three-dimensional scanning system is used to determine the position of the baseline as a reference position for controlling the horizontal movement of the bridge.

7. The magnetocardiographic measuring device according to claim 1, characterized in that: The traction structure includes a main traction body, an adapter block and a guide structure; the adapter block is arranged in front of the traction motor; the main traction body is wound around the traction motor and is divided into two traction bodies through the adapter block; the two traction bodies pass through the sides of the bed and the bridge respectively, and are guided by the guide structure, and finally pass through the bridge from above the bridge to connect with the magnetic heart sensor.

8. The magnetocardiographic measuring device according to claim 7, characterized in that: The guide structure is a guide wheel, and a plurality of the guide wheels are distributed on the sides of the bed and the bridge.

9. The magnetocardiographic measuring device according to claim 1, characterized in that: The bridge frame includes a bridge frame, one side or both sides of the bridge frame are slidably mounted on the bed; the magnetic heart sensor includes a base and a plurality of atomic magnetometers; the plurality of atomic magnetometers are mounted on the base; the traction structure is connected to the base; and at least one pulley is respectively provided on the left and right sides of the base, and at least one guide column is respectively provided on the left and right sides of the bridge frame, and the pulley cooperates with the guide column so that the base rolls on the guide column through the pulley during the up and down movement.

10. The magnetocardiographic measuring device according to claim 9, characterized in that: A plurality of pulley structures are arranged on both the left and right sides of the base, each of which includes two pulleys distributed up and down or front and back, and each pulley can roll on a corresponding guide column.

11. The magnetocardiographic measuring device according to claim 1, characterized in that: The three-dimensional scanning system is provided with four cameras on both sides of the entrance and exit of the cabin, and the four cameras on the same side are arranged in an arc shape up and down.

12. A method for measuring magnetocardiography, performed based on the magnetocardiography measuring device according to any one of claims 1 to 11, characterized in that: The following steps are involved: S01: the three-dimensional scanning system controls the bed motor to drive the bed to move into the cabin, and during the movement, the three-dimensional scanning system performs a three-dimensional structural scan on the object to be measured on the bed, thereby obtaining a three-dimensional model of the object to be measured; S02: The three-dimensional scanning system obtains horizontal position information and height information of an area of ​​interest on the object to be measured based on the three-dimensional model of the object to be measured; S03: the three-dimensional scanning system controls the bridge motor to drive the bridge to move horizontally to a specified position based on the horizontal position information of the region of interest, so that the region of interest falls within the horizontal projection range of the magnetocardiographic sensor; S04: Based on the height information of the region of interest, the three-dimensional scanning system controls the traction motor to drive the magnetocardiographic sensor to descend to a specified height and maintain a preset safety distance from the object to be measured.

13. The magnetocardiographic measurement method according to claim 12, characterized in that: After step S04, the following steps are also included: S05: the three-dimensional scanning system controls the traction motor to drive the magnetocardiographic sensor to move upward and return to the initial position; S06: Keeping the bridge at the designated position, the three-dimensional scanning system controls the bed motor to drive the bed to move out of the cabin and return to the initial state; S07: Maintaining the bed in the initial state, the three-dimensional scanning system controls the bridge motor to drive the bridge to move from the designated position to the initial position, where the bridge is inside the cabin and close to the entrance and exit of the cabin.

14. The magnetocardiographic measurement method according to claim 13, characterized in that: Before step S01, the method further includes: Control the bed to be in an initial state, in which the bed is outside the cabin, the front end of the bed is close to the entrance and exit of the cabin, and the bridge is inside the cabin and in the initial position. When the bed is in the initial state, the three-dimensional scanning system records the position of the baseline on the bed, determines the position of the baseline as the reference position for the horizontal movement of the bridge, and after recording the position of the baseline, execute step S01; When executing step S03, the three-dimensional scanning system controls the bridge motor to drive the bridge to move horizontally to the specified position based on the horizontal position information of the area of ​​interest, the horizontal distance from the bridge to the baseline, and the horizontal distance from the identified surface features on the object to be measured to the baseline.

15. The magnetocardiographic measurement method according to claim 13, characterized in that: When executing step S03, it also includes: the three-dimensional scanning system controls the traction motor to synchronously tighten the traction structure, so that the relative positions of the magnetocardiogram sensor and the bridge remain unchanged, and the magnetocardiogram sensor is in an initial position.

Images