Magnetocardiographic detection device

Abstract

The present application relates to a cardiac magnetometry detection device. The cardiac magnetometry detection device comprises: a first mounting plate, provided with a plurality of first mounting parts in an array, the first mounting part having a first arc-shaped guide hole and an arc-shaped wiring hole, the first arc-shaped guide hole and the arc-shaped wiring hole being coaxially arranged and defining a first rotation axis; a plurality of first shells, the first shells being used to mount an amplifying circuit board, the first shells being rotatably connected to the first mounting plate around the corresponding first rotation axis, the first shells being provided with a first slider penetrating the first arc-shaped guide hole, the first shells being provided with a second arc-shaped guide hole, the second arc-shaped guide hole defining a second rotation axis intersecting the first rotation axis; and a plurality of second shells, the second shells being rotatably connected to the first shells around the second rotation axis, the second shells being provided with a second slider penetrating the second arc-shaped guide hole, and the second shells being used to mount a sensor. The cardiac magnetometry detection device can avoid magnetic interference to the sensor; in addition, the posture of the sensor can be adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of detection devices, and in particular to a magnetocardiographic detection device. Background Art

[0002] With the advancement of science and technology, people's understanding of organisms has been continuously improved. For example, people have found that organisms have weak biomagnetic fields, and by detecting the biomagnetic field signals of the human body, it can help diagnose some diseases, such as heart disease, nervous system diseases, etc. Being able to detect human diseases in the early stages of the disease is of great value.

[0003] However, the signal of cardiac magnetism is extremely weak, only one millionth of the Earth's magnetic field. When detecting cardiac magnetism, the magnetic field of the surrounding environment will cause great interference to the detection, making cardiac magnetism detection more difficult. Summary of the invention

[0004] Based on this, it is necessary to provide a cardiac magnetometry detection device to address the problem of difficulty in cardiac magnetometry detection.

[0005] The present application provides a cardiac magnetometry detection device, which includes: a first mounting plate, provided with a plurality of first mounting parts in an array, the first mounting part having a first arc-shaped guide hole and an arc-shaped wiring hole, the first arc-shaped guide hole and the arc-shaped wiring hole being coaxially arranged and defining a first rotation axis; a plurality of first shells, the first shells being rotatably connected to the first mounting plate around the corresponding first rotation axis, the first shells being used to install an amplifying circuit board, the first shells being provided with a first slider penetrating the first arc-shaped guide hole, the first shells being provided with a second arc-shaped guide hole, the second arc-shaped guide hole defining a second rotation axis intersecting the first rotation axis; and a plurality of second shells, the second shells being rotatably connected to the corresponding first shells around the second rotation axis, the second shells being provided with a second slider penetrating the second arc-shaped guide hole, the second shells being used to install sensors, and the materials of the second shells, the first shells and the first mounting plate are all non-magnetic materials.

[0006] By setting the first shell and the second shell, the sensor installed on the second shell can be adjusted to different postures relative to the first mounting plate and can also maintain the adjusted posture; the movement range of the amplifying circuit board is small and the sensor moves freely, which helps to improve the array density under a given sensor size. At the same time, the amplifying circuit board is close to the sensor, which helps to ensure the performance of the sensor; the rotation of the first shell and the second shell is stable and convenient, and the arc-shaped wiring hole helps to avoid the cable connected to the sensor from entangled in the sensor.

[0007] The components without magnetic materials in the cardiac magnetometry detection device of the present application can avoid magnetic interference to the sensor; the sensor can be arbitrarily translated and rotated in the space near the heart to measure the cardiac magnetic field in different positions and directions, and then the posture of the sensor can be adjusted so that the sensor can detect stronger magnetic signals; multiple sensors can cooperate to achieve more comprehensive detection of cardiac magnetometry.

[0008] In some embodiments, the first arc guide hole and the second arc guide hole are both countersunk arc holes; the first mounting portion has a first countersunk shaft hole, the first shell is provided with a first bolt shaft rotatably connected to the countersunk shaft hole, the first shell has a second countersunk shaft hole, and the second shell is provided with a second bolt shaft rotatably connected to the second countersunk shaft hole.

[0009] Such a setting is convenient for processing and assembly, and can also realize the rotation requirements under the condition of compact array layout. It has a simple structure, good sliding performance and stable posture.

[0010] In some embodiments, the first slider, the second slider, the first bolt shaft, and the second bolt shaft include copper screws or titanium screws, respectively.

[0011] Such an arrangement ensures convenient adjustment and connection strength while avoiding interference with the magnetic field of the heart.

[0012] In some embodiments, the first shell includes a first adjustment seat, a first mounting shell and a second mounting portion connected in sequence, the first adjustment seat is used to be rotatably connected to the first mounting plate, and the first adjustment seat is deflected relative to the first mounting shell; the second shell includes a second adjustment seat and a second mounting shell, the second adjustment seat is rotatably connected to the second mounting portion, the second mounting shell and the first adjustment seat are located on the same side of the first mounting shell along the second rotation axis, and the second mounting shell is used to install the sensor.

[0013] With such arrangement, the structure after the first shell and the second shell are combined is compact, and the required adjustment angle can be completed in a smaller space, which is conducive to densely localizing multiple sensors and helps to ensure that there is no collision and interference between adjacent sensors.

[0014] In some embodiments, the first arc-shaped guide hole and the arc-shaped wiring hole are located on two radially opposite sides of the first rotation axis; in the second mounting portion, the position of the second rotation axis is eccentrically arranged.

[0015] With such arrangement, the first mounting portion has a smaller size and a compact layout, which is convenient for wiring; the second mounting portion has a smaller size and a compact layout, and the rotational travel of the second shell is sufficient.

[0016] In some embodiments, the curvature of the first arc-shaped guide hole and the curvature of the second arc-shaped guide hole are both equal to π / 2.

[0017] With such an arrangement, the sensor can achieve full spatial angle coverage relative to the centroidal magnetic field, and when adjusting the sensor, the most suitable angle relative to the centroidal magnetic field can always be found.

[0018] In some embodiments, the first mounting shell is provided with a positioning column for connecting the amplifying circuit board, and the first mounting shell is provided with an opening corresponding to the arc-shaped wiring hole.

[0019] With such an arrangement, the amplifier circuit board can be reliably installed and the cables connected to the amplifier circuit board can be gathered.

[0020] In some embodiments, the second mounting shell has a side groove and an adjusting portion, the side groove is used to take and place the sensor, and the adjusting portion is arranged at the bottom of the side groove for clamping different numbers of sensors.

[0021] This arrangement allows the number of sensors to be selected and to be easily accessible.

[0022] In some embodiments, the magnetic heart detection device further includes a second mounting plate, the material of the second mounting plate is a non-magnetic material; the first mounting plate is connected to the second mounting plate, and the first mounting plate is movable along the second mounting plate.

[0023] Such an arrangement can fine-tune the positions of multiple sensors in space and is also convenient for the installation of the magnetic heart detection device.

[0024] In some embodiments, the magnetic heart detection device further includes a frame and a clamp, and the second mounting plate is adjustably connected to the frame along the direction of the first rotation axis via the clamp.

[0025] With such arrangement, the magnetocardiographic detection device can be flexibly adjusted according to usage requirements so as to effectively detect the magnetocardiographic magnetic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a magnetic heart detection device according to one or more embodiments;

[0027] Figure 2 is a schematic front view of a cardiac magnetometry detection device according to one or more embodiments;

[0028] Figure 3 is a schematic top view of a second mounting plate according to one or more embodiments;

[0029] Figure 4 is a schematic top view of a magnetic heart detection device according to one or more embodiments;

[0030] Figure 5 is a schematic top view of a first mounting plate according to one or more embodiments;

[0031] Figure 6is a schematic structural diagram of a detection unit in a first posture according to one or more embodiments;

[0032] Figure 7 is a schematic structural diagram of a detection unit in a second posture according to one or more embodiments;

[0033] Figure 8 is a schematic structural diagram of a first housing according to one or more embodiments;

[0034] Fig. 9 is a schematic structural diagram of an amplifying circuit board according to one or more embodiments;

[0035] Fig.10 is a schematic structural diagram of a second housing according to one or more embodiments;

[0036] Fig.11 is a schematic structural block diagram of a cardiac magnetometry detection device according to one or more embodiments.

[0037] Description of reference numerals: 1, first mounting plate; 10, first mounting portion; 101, first arc-shaped guide hole; 102, arc-shaped wiring hole; 103, first countersunk shaft hole; 104, mounting hole;

[0038] 2. first housing; 21. first adjustment seat; 22. first mounting housing; 23. second mounting portion; 24. positioning column; 201. second arc-shaped guide hole; 202. second countersunk shaft hole; 203. opening; 204. first screw hole; 205. avoidance through hole;

[0039] 31. First slider; 32. Second slider; 33. First bolt shaft; 34. Second bolt shaft; 35. Mounting bolt;

[0040] 4. Second housing; 40. Side groove; 41. Second adjustment seat; 42. Second mounting housing; 401. Groove bottom; 402. Notch; 403. Adjustment screw hole; 404. Second screw hole;

[0041] 5. second mounting plate; 501. strip-shaped hole; 6. frame; 7. fixture;

[0042] 100. Cardiac magnetometry detection device; 200. Sensor; 300. Amplifying circuit board; 310. Circuit board body; 320. Plug; 330. Pad; 400. Cable. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments of the following disclosed implementation methods.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "perpendicular", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. Exemplarily, the first bolt axis may also be referred to as the second bolt axis, and the second bolt axis may also be referred to as the first bolt axis. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a flexible connection, or a rigid connection along at least one direction; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or directly connected with the presence of an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The terms "install", "set", "fixed", etc. can be broadly understood as connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] It should be noted that the distal end and proximal end referred to in this application are based on the operator, the end close to the operator is the proximal end or the proximal part, and the end away from the operator is the distal end or the distal part. The side facing the operator is the proximal side or the proximal side, and the side facing away from the operator is the distal side or the distal side. In addition, the distal direction and the proximal direction represent two directions; the proximal-distal direction is parallel to the distal direction and the proximal direction, and the proximal-distal direction does not specifically refer to the forward or reverse direction.

[0049] refer to Figure 1 , Figure 1 1 shows a magnetic heart detection device in the present application. In an exemplary embodiment, the magnetic heart detection device 100 includes a first mounting plate 1, a first shell 2 and a second shell 4. The first shell 2 and the second shell 4 can be used to form a detection unit. The magnetic heart detection device 100 includes a plurality of detection units, Figure 1 Only one is shown in the figure, and multiple detection units can be arranged in an array along the XY plane, such as a matrix arrangement.

[0050] The first mounting plate 1, the first housing 2 and the second housing 4 are all made of non-magnetic materials. The assembly formed by the three can be an adjustment assembly that can be installed. Figure 2 The sensor 200 and the amplifying circuit board 300 in the embodiment can also be used to modify an existing fixed sensor array. The magnetocardiographic detection device 100 of the present application can still be expanded after being used for a period of time, for example, by increasing the number of detection units or adjusting the first mounting plate 1 to change the array shape.

[0051] Combination Figure 2 As shown, exemplarily, the centrifugal detection device 100 may include a sensor 200, which is disposed in the second housing 4 and may also be used to constitute a detection unit. By arranging the first mounting plate 1 and the second mounting plate 5, the positions of the multiple sensors 200 in space may be fine-tuned.

[0052] For example, Figure 2As shown, the magnetic heart detection device 100 further includes an amplifier circuit board 300. The amplifier circuit board 300 is electrically connected to the sensor 200 and is used to amplify the signal of the sensor 200, and then the amplifier circuit board 300 can transmit the amplified signal through the cable 400. The amplifier circuit board 300 can be disposed in the first housing 2.

[0053] Combination Figure 3 As shown, exemplarily, the magnetic core detection device 100 further includes a second mounting plate 5. Along the Z-axis direction, the first mounting plate 1 can be arranged at the lower side of the second mounting plate 5, and the detection unit can be arranged at the lower side of the first mounting plate 1. The material of the second mounting plate 5 is also non-magnetic material.

[0054] refer to Figures 3 to 5 , the second mounting plate 5 may be provided with a strip hole 501, and the strip hole 501 may be an oblong hole extending in the Y-axis direction. The first mounting plate 1 may be provided with a mounting hole 104, and the first mounting plate 1 may be connected to the second mounting plate 5 by means of a mounting bolt 35. The mounting bolt 35 is passed through the mounting hole 104 and the strip hole 501, and the position may be adjusted in the strip hole 501 in the Y-axis direction. By tightening the mounting bolt 35, the first mounting plate 1 may be fixed relative to the second mounting plate 5. The first mounting plate 1 is movable along the second mounting plate 5, and then the detection unit is movable along the second mounting plate 5. The small-range translation of the first mounting plate 1 as a whole is beneficial to the centroid detection device 100. The centroid detection device 100 can ensure portability and easy disassembly and assembly. After disassembly and assembly, the centroid detection device 100 can ensure the reliable use of the sensor array. For example, the mounting hole 104 may be a threaded hole.

[0055] Combination Figure 5 As shown, the first mounting plate 1 is provided with a plurality of first mounting portions 10 in an array. Figure 5 The first mounting plate 1 is an integrated structure, and a hole is opened on the whole plate. A plurality of first shells 2 are rotatably connected to the corresponding first mounting parts 10. The first mounting part 10 may be provided with a rotating shaft, and the first shell 2 may be provided with an axial hole; or the first mounting part 10 may be provided with an axial hole, and the first shell 2 may be provided with a rotating shaft. The first mounting part 10 has a first rotation axis, and the first rotation axis may be parallel to the Z-axis direction.

[0056] The first mounting portion 10 has a first arc-shaped guide hole 101 and an arc-shaped wiring hole 102. The first arc-shaped guide hole 101 and the arc-shaped wiring hole 102 are coaxially arranged. It can be considered that the first arc-shaped guide hole 101 defines a first rotation axis, and it can also be considered that the first arc-shaped guide hole 101 extends in an arc shape with the first rotation axis as the axis. The arc-shaped wiring hole 102 also extends roughly around the first rotation axis. The arc-shaped wiring hole 102 can be wider than the first arc-shaped guide hole 101, and thus the arc-shaped wiring hole 102 can have a relatively large size deviation margin.

[0057] The first arc-shaped guide hole 101 and the arc-shaped wiring hole 102 are located on two radially opposite sides of the first rotation axis, so that the radius of the first arc-shaped guide hole 101 and the arc-shaped wiring hole 102 can be small, the size of the first mounting portion 10 is small, and the layout of multiple first mounting portions 10 is compact. In addition, it is convenient to pass the cable 400 through the arc-shaped wiring hole 102, and the route of the cable 400 connected to the sensor 200 can better avoid the motion profile of the detection unit. Optionally, the first arc-shaped guide hole 101 and the arc-shaped wiring hole 102 have different diameters, which is conducive to avoiding installation errors.

[0058] The first mounting portion 10 in the first mounting plate 1 of the present application can form a 5×5 array, and then twenty-five first shells 2 can be set. Exemplarily, the first mounting portion 10 or the first shell 2 is arranged in a matrix form, and the row spacing and column spacing are equal. Specifically, the spacing can be 42mm. The length of the second mounting plate 5 can be 610mm, the width can be 480mm, and the thickness can be 10mm. The second mounting plate 5 can have a rectangular cutout, which can be larger than the overall outer contour of the plurality of first mounting portions 10 to facilitate the passage of a plurality of cables 400, and the rectangular cutout can be smaller than the contour of the first mounting plate 1 to facilitate connection. The length of the rectangular cutout can be 235mm and the width can be 207mm. The width of the strip hole 501 can be 6mm, and the length of the strip hole 501 can be 26mm, which includes the size of the arc at both ends, and the fillet radius is 3mm. Furthermore, the diameter of the mounting hole 104 can be 4.8mm, which is used for self-tapping to adapt to M6 screws.

[0059] refer to Figure 4 and Figure 6 The first shell 2 is rotatably connected to the first mounting plate 1 around the corresponding first rotation axis. The first shell 2 is provided with a first slider 31 which penetrates the first arc-shaped guide hole 101. The first slider 31 can slide along the first arc-shaped guide hole 101, thereby ensuring the precise rotation of the first shell 2.

[0060] Exemplarily, the first arc-shaped guide hole 101 is a countersunk arc-shaped hole, and the first slider 31 may include a copper screw or a titanium screw. The first slider 31 is fixed to the first housing 2 and slidably disposed in the countersunk portion of the first arc-shaped guide hole 101. Figure 8 The first housing 2 has a first screw hole 204 , which can be defined by a copper insert nut. The first slider 31 is positioned relative to the first screw hole 204 and can be used to lock the first housing 2 and the first mounting plate 1 .

[0061] The first mounting portion 10 has a first countersunk shaft hole 103, and the first housing 2 may have another screw hole. The first bolt shaft 33 is inserted into the first countersunk shaft hole 103, and the nut of the first bolt shaft 33 is located at the countersunk head, and then can be rotatably connected to the first countersunk shaft hole 103; the first bolt shaft 33 can be threadedly connected to or rotatably connected to the first housing 2. The first countersunk shaft hole 103 can pass an M4 screw, for example, the diameter of the through hole is 4.8 mm; the first arc-shaped guide hole 101 can pass an M4 screw. The width of the arc-shaped wiring hole 102 can be 8 mm.

[0062] Exemplarily, the first shell 2 is provided with a second arc-shaped guide hole 201, and the second arc-shaped guide hole 201 defines a second rotation axis intersecting the first rotation axis, or it is considered that the second arc-shaped guide hole 201 extends in an arc shape with the second rotation axis as the axis. Since the first shell 2 can rotate relative to the first mounting plate 1, the position of the second rotation axis in space will change, for example, the second rotation axis is perpendicular to the first rotation axis, and then the second rotation axis can have different angles in the XY plane, such as Figure 6 In the detection unit of the posture shown, the second rotation axis can be parallel to the Y-axis direction. Figure 7 In the detection unit of the shown posture, the second rotation axis may also be parallel to the Y-axis direction, but the second housing 4 has been rotated.

[0063] The second housing 4 is rotatably connected to the first housing 2 around the second rotation axis. The first housing 2 may be provided with a rotation shaft and the second housing 4 may be provided with an axis hole; or the first housing 2 may be provided with an axis hole and the second housing 4 may be provided with a rotation shaft. Figure 8 As shown, illustratively, the first housing 2 is provided with a second countersunk shaft hole 202, the second countersunk shaft hole 202 can define a second rotation axis, and the second arc-shaped guide hole 201 surrounds the second countersunk shaft hole 202. The magnetic core detection device 100 may include a second bolt shaft 34, the second bolt shaft 34 may be passed through the second countersunk shaft hole 202 and rotatably connected to the second countersunk shaft hole 202, and the second bolt shaft 34 may be threadedly connected to or rotatably connected to the second housing 4.

[0064] The second housing 4 may be provided with a second slider 32 that penetrates the second arc-shaped guide hole 201. The second slider 32 can slide along the second arc-shaped guide hole 201, thereby ensuring that the second housing 4 rotates accurately.

[0065] Exemplarily, the second arc-shaped guide hole 201 is a countersunk arc-shaped hole, and the second slider 32 may include a copper screw or a titanium screw. The second slider 32 is fixed to the second housing 4 and slidably disposed in the countersunk portion of the second arc-shaped guide hole 201. Fig.10 The second housing 4 has a second screw hole 404 , which can be defined by a copper insert nut. The second slider 32 is positioned relative to the second screw hole 404 and can be used to lock the first housing 2 and the second housing 4 .

[0066] By configuring the countersunk arc hole and the countersunk shaft hole, the bolt shaft can be sunken, which is conducive to making the surface of the detection unit flat, changing the posture smoothly, and a more compact array layout. The first bolt shaft 33 and the second bolt shaft 34 can simply realize the rotation and connection structure, and the first shell 2 and the second shell 4 have a simple structure and are easy to manufacture and assemble. And by setting the arc countersunk holes on the first mounting plate 1 and the first shell 2, it is convenient to place and screw the screws. The magnetic core detection device 100 is easy to assemble and easy to adjust the posture.

[0067] The first bolt shaft 33 cooperates with the first slider 31 to realize two-point support, and stably supports the first housing 2 in a compact space. The second bolt shaft 34 cooperates with the second slider 32 to stably support the second housing 4. The detection unit has good sliding performance and stable posture.

[0068] The second housing 4 is used to mount the sensor 200. The purpose of adjusting the posture of the detection unit is to make the sensor 200 have different postures in space so as to detect stronger magnetic heart signals. Figure 6 , the second slider 32 slides to one end of the second arc-shaped guide hole 201, when the second housing 4 is mounted with the sensor 200, the coil axis of the sensor 200 can be roughly along the Z-axis direction; Figure 7 As shown, based on the relative positioning of the first housing 2 relative to the first mounting plate 1, the second slider 32 slides to the other end of the second arc-shaped guide hole 201, and when the second housing 4 is mounted with the sensor 200, the coil axis of the sensor 200 can be roughly along the X-axis direction. Further, after the first housing 2 rotates relative to the first mounting plate 1, the second housing 4 and the sensor 200 are also driven to rotate.

[0069] Each component in the cardiac magnetometry detection device 100 of the present application is based on non-magnetic materials, which can avoid magnetic interference to the sensor 200. The rotation of the first shell 2 and the second shell 4 is stable and convenient. The arc-shaped wiring hole helps to avoid the cable 400 connected to the sensor 200 from being entangled in the sensor. The second shell 4 is easy to adjust and can reliably maintain the adjusted posture, so that the sensor 200 can be adjusted and maintained in different postures relative to the first mounting plate 1, so that the sensor 200 can detect stronger magnetic signals; multiple sensors 200 cooperate to achieve a more comprehensive detection of cardiac magnetism.

[0070] refer to Figure 1 , Figure 6 , Figure 7 and Figure 8In some embodiments, the first shell 2 includes a first adjustment seat 21, a first mounting shell 22, and a second mounting portion 23 connected in sequence. The first adjustment seat 21 is used to be rotatably connected to the first mounting plate 1. The first mounting shell 22 is deflected relative to the first adjustment seat 21. The first mounting shell 22 can have a longer dimension along the Z-axis direction, which can provide sufficient space for the rotation of the second shell 4, and can have a smaller dimension in the array direction of multiple first shells 2. In addition, the amplifying circuit board 300 can also be installed. When the first adjustment seat 21 is considered to be located at the upper end of the first mounting shell 22, it can be considered that the second mounting portion 23 is located at the lower end of the first mounting shell 22, and the second mounting portion 23 is extended from the first mounting shell 22, and the second mounting portion 23 is rotatably connected to the second shell 4.

[0071] Exemplarily, the first mounting shell 22 is provided with a positioning column 24 for connecting the amplifying circuit board 300. The first mounting shell 22 may have a rectangular groove for embedding the amplifying circuit board 300, and the positioning column 24 may be arranged at the bottom of the rectangular groove. Four positioning columns 24 may be provided, and each positioning column 24 may be located at a corresponding corner in the rectangular groove. The positioning column 24 is used to support and fix the amplifying circuit board 300, which helps to keep the amplifying circuit board 300 flat and avoid scratching due to excessive protrusion during rotation; it is also beneficial to avoid direct contact between the bottom of the amplifying circuit board 300 and the first mounting shell 22. For example, the axial spacing between the amplifying circuit board 300 and the first mounting shell 22 along the positioning column 24 is 1 mm to facilitate heat dissipation. The first mounting shell 22 can reliably mount the amplifying circuit board 300.

[0072] The first mounting shell 22 is provided with an opening 203 corresponding to the arc-shaped wiring hole 102 . The opening 203 is connected to the rectangular groove and can avoid the positioning column 24 . The cable 400 can pass through the opening 203 .

[0073] The first mounting shell 22 may be provided with an avoidance through hole 205 to better mount the amplifying circuit board 300. Fig. 9, the magnification circuit board 300 may include a circuit board body 310 and electronic components mounted on the circuit board body 310, such as a plug 320 and pads 330. The plug 320 may be correspondingly located at the opening 203 and can be connected to the cable 400 without obstruction. The dimension of the first mounting shell 22 in the Z-axis direction is small; by providing an avoidance through-hole 205 near the opening 203, it can be ensured that the first mounting shell 22 will not collide with or squeeze the plug 320 of the magnification circuit board 300. The pads 330 of the magnification circuit board 300 can be electrically connected to the sensor 200 through copper wires. The avoidance through-hole 205 far from the opening 203 can be used to avoid the pads 330 and can be used for the copper wires to pass through. The position of the avoidance through-hole 205 enables the copper wires to be easily connected to the sensor 200 in the second housing 4 after being led out. Based on the rotation characteristics of the magnetocardiogram detection device 100, leading the copper wires out from the bottom of the first housing 2 can avoid the copper wires from being wound and minimize the length of the copper wires as much as possible. The shorter copper wires are also beneficial to improving the performance of the sensor 200.

[0074] Reference Fig.10 , the second housing 4 may include a second adjustment base 41 and a second mounting shell 42. Combining Figure 6 and Figure 7 As shown, the second adjustment base 41 is rotatably connected to the second mounting portion 23. The second mounting shell 42 and the first adjustment base 21 are located on the same side of the first mounting shell 22 along the second rotation axis. The detection unit can be integrally in a C shape. The second mounting shell 42 is used to mount the sensor 200, and multiple sensors 200 can be mounted. The combined structure of the first housing 2 and the second housing 4 is compact and can complete the required adjustment angle in a smaller space. Adjacent detection units can be arranged relatively close, which can ensure that there is no collision or interference between adjacent second housings 4 and is beneficial to densely arranging multiple sensors 200 locally. Exemplarily, one second housing 4 can be provided for one first housing 2.

[0075] Reference Figures 6 to 8 、 Fig.10 , the first adjustment base 21, the second mounting portion 23, and the second adjustment base 41 are all generally semi-circular or arch-shaped, and the ends are arcs. Exemplarily, in the second mounting portion 23, the position of the second rotation axis is eccentrically arranged. Specifically, the position of the second countersunk shaft hole 202 deviates from the centroid of the second mounting portion 23, and the second arc-shaped guiding hole 201 generally extends along the diagonal of the second mounting portion 23. The length of the second arc-shaped guiding hole 201 is long, ensuring that the second housing 4 has enough rotation stroke. The second rotation axis corresponds to the vicinity of the center of the arc edge of the second adjustment base 41, and the second screw hole 404 is close to the end of the second adjustment base 41, which is beneficial for the second housing 4 to occupy less rotation space. Configuring the second countersunk shaft hole 202 close to the end of the second mounting portion 23 makes the size of the second mounting portion 23 small and the layout compact.

[0076] The first rotation axis in the first housing 2 is approximately located at the outer shape centroid of the first adjustment seat 21 on the XY plane, and the first housing 2 can occupy a smaller rotation space.

[0077] In some embodiments, the curvature of the first arc-shaped guide hole 101 and the curvature of the second arc-shaped guide hole 201 are both equal to π / 2. The sensor 200 can rotate between the horizontal plane and the vertical plane in space, and can turn to different angles. Since the positive and negative signals of the axial direction of the coil of the sensor 200 can be solved by signal processing, the sensor 200 can achieve full coverage of the spatial angle relative to the magnetic field of the heart. When adjusting the sensor 200, the most suitable angle relative to the magnetic field of the heart can always be found. The curvature of the guide hole is equal to π / 2, which can not only ensure that the sensor 200 corresponds to the magnetic field in any direction in space, but also make the magnetic field detection device 100 smaller in size and not occupy too much space, thereby ensuring a high array density. In addition, the first arc-shaped guide hole 101 and the second arc-shaped guide hole 201 also have a limiting function. When the first slider 31 or the second slider 32 slides to the limit position in the corresponding arc-shaped guide hole, the sensor 200 is just in one of the multiple predetermined directions orthogonal to each other. Such a setting is easy to adjust and can accurately adjust the sensor 200 to the desired posture.

[0078] In some embodiments, the second mounting shell 42 has a side groove 40, and the side groove 40 is used to take and place the sensor 200. The side groove 40 may have a relative groove bottom 401 and a notch 402, and the notch 402 is narrower than the groove bottom 401, so as to clamp the sensor 200 while avoiding the middle part of the sensor 200. The side groove 40 may also be connected to a threading hole for threading the cable 400.

[0079] The second mounting shell 42 includes an adjustment portion (not shown). Optionally, the adjustment portion can be an elastic structure or a bolt. Exemplarily, at least one adjustment screw hole 403 is provided at the bottom of the groove 401, and the adjustment screw can be threadedly connected to the adjustment screw hole 403 and used to clamp different numbers of sensors 200. The number of layers of the sensor 200 can be adjusted, for example, the thickness of the sensor 200 ranges from 2 mm to 9 mm. Exemplarily, the notch 402 is suitable for a sensor 200 with a size of 32.2 mm×25.2 mm.

[0080] Combination Fig.11As shown, in some embodiments, the magnetic heart detection device 100 further includes a frame 6 and a clamp 7, and the second mounting plate 5 is adjustably connected to the frame 6 along the direction of the first rotation axis through the clamp 7. When using the magnetic heart detection device 100, the subject can be lying flat, such as lying on a bed, and the frame 6 is supported on the periphery of the subject, and then adjusted so that the multiple sensors 200 correspond to the detection site, such as the heart of the human body. In other embodiments, the subject can also stand or sit. The magnetic heart detection device 100 can be flexibly adjusted according to the use requirements so as to effectively detect the magnetic heart field.

[0081] Optionally, in the cardiac magnetometry detection device 100 of the present application, each screw is a titanium screw or a screw made of other non-magnetic material, which ensures convenient adjustment and connection strength while avoiding interference with the cardiac magnetometry magnetic field. When the adjustment part is a screw, it can be a plastic screw to protect the sensor 200. The material of the first mounting plate 1 and the second mounting plate 5 can be acrylic, and the material of the first shell 2 and the second shell 4 can be plastic. The frame 6 can be built using aluminum profiles, and the material of the clamp 7 can be aluminum. The cardiac magnetometry detection device 100 is non-magnetic, stable, and can realize a sensor array that can freely adjust the direction and height, which is of great significance for the efficient capture and accurate measurement of cardiac magnetometry signals.

[0082] The cardiac magnetometry detection device 100 of the present application can achieve at least one of the following beneficial effects: simple structure, easy to locate the human heart range; no need to replace the sensor fixing seat, the sensor 200 can detect the magnetic field in multiple directions; simple operation, and the array height can be freely adjusted according to the different body shapes of the subjects; all connectors use standard parts, saving customization time and facilitating quick commissioning; all use non-magnetic materials, which will not produce noise impact on signal detection.

[0083] The technical features of the embodiments disclosed above can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The embodiments disclosed above only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of patent protection required by the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A magnetic heart detection device, characterized in that: include: A first mounting plate, provided with a plurality of first mounting portions in an array, wherein the first mounting portion has a first arc-shaped guide hole and an arc-shaped wiring hole, wherein the first arc-shaped guide hole and the arc-shaped wiring hole are coaxially arranged and define a first rotation axis; A plurality of first shells, wherein the first shells are rotatably connected to the first mounting plate around corresponding first rotation axes, the first shells are used to mount an amplifying circuit board, the first shells are provided with a first slider penetrating the first arc-shaped guide hole, the first shells are provided with a second arc-shaped guide hole, and the second arc-shaped guide hole defines a second rotation axis intersecting the first rotation axis; as well as A plurality of second shells, wherein the second shells are rotatably connected to the corresponding first shells around the second rotation axis, the second shells are provided with a second slider penetrating into the second arc-shaped guide hole, the second shells are used to install sensors, and the materials of the second shells, the first shells and the first mounting plate are all non-magnetic materials.

2. The magnetocardiographic detection device according to claim 1, characterized in that: The first arc-shaped guide hole and the second arc-shaped guide hole are both countersunk arc-shaped holes; The first mounting portion has a first countersunk shaft hole, the first housing is provided with a first bolt shaft rotatably connected to the countersunk shaft hole, the first housing has a second countersunk shaft hole, and the second housing is provided with a second bolt shaft rotatably connected to the second countersunk shaft hole.

3. The magnetocardiographic detection device according to claim 2, characterized in that: The first sliding block, the second sliding block, the first bolt shaft and the second bolt shaft respectively include copper screws or titanium screws.

4. The magnetocardiographic detection device according to claim 1, characterized in that: The first housing includes a first adjustment seat, a first mounting shell and a second mounting portion which are connected in sequence, the first adjustment seat is used to be rotatably connected to the first mounting plate, and the first adjustment seat is deflected relative to the first mounting shell; The second shell includes a second adjustment seat and a second mounting shell. The second adjustment seat is rotatably connected to the second mounting portion. The second mounting shell and the first adjustment seat are located on the same side of the first mounting shell along the second rotation axis. The second mounting shell is used to mount the sensor.

5. The magnetocardiographic detection device according to claim 4, characterized in that: The first arc-shaped guide hole and the arc-shaped wiring hole are located on two radially opposite sides of the first rotation axis; In the second mounting portion, the second rotation axis is eccentrically disposed.

6. The magnetocardiographic detection device according to claim 5, characterized in that: The curvature of the first arc-shaped guide hole and the curvature of the second arc-shaped guide hole are both equal to π / 2.

7. The magnetocardiographic detection device according to claim 4, characterized in that: The first mounting shell is provided with a positioning column for connecting the amplifying circuit board, and the first mounting shell is provided with an opening corresponding to the arc-shaped wiring hole.

8. The magnetocardiographic detection device according to claim 4, characterized in that: The second mounting shell has a side groove and an adjusting portion, wherein the side groove is used for taking and placing the sensor, and the adjusting portion is arranged at the bottom of the side groove and is used for clamping different numbers of the sensors.

9. The magnetocardiographic detection device according to claim 1, characterized in that: It also includes a second mounting plate, the material of the second mounting plate is a non-magnetic material; the first mounting plate is connected to the second mounting plate, and the first mounting plate is movable along the second mounting plate.

10. The magnetocardiographic detection device according to claim 9, characterized in that: The invention also includes a frame and a clamp, wherein the second mounting plate is adjustably connected to the frame along the direction of the first rotation axis through the clamp.

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