A detection device for a magnetocardiograph

Abstract

The utility model belongs to the technical field of medical equipment discloses a detection device for magnetocardiograph. Detection device for magnetocardiograph includes elevating system and traction mechanism, elevating system is configured to set up in the accommodating cavity of magnetic shielding, including support seat, probe box and two cross arms, two cross arms are all set up between support seat and probe box, and two cross arms are interval and symmetric setting;Traction mechanism includes electric drive assembly and tow rope, electric drive assembly is configured to set up outside magnetic shielding, and tow rope passes through the cavity wall of accommodating cavity and is connected with probe box, and electric drive assembly is used for pulling tow rope, makes tow rope along vertical movement to drive probe box movement. The utility model can realize the automatic elevating of probe box, improved the detection efficiency, and can avoid the magnetic interference of the probe in probe box as far as possible, reduces the influence to the detection result, in addition, occupies the space is smaller, and the structure is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a detection device for a magnetocardiogram (MCG) machine. Background Technology

[0002] Zero-magnetic medical testing is an emerging, cutting-edge technology based on advanced, ultra-sensitive, extremely weak magnetic field measurement technology. It detects the extremely weak magnetic fields of human organs in a near-zero magnetic field environment. This technology features extremely high sensitivity, high resolution, and high accuracy, aiding in the detection of the heart's functional status and early disease screening. Magnetocardiography (MCG) is one application of zero-magnetic medical testing, primarily using an ultra-sensitive, extremely weak magnetic field measurement probe to perform cardiac magnetometry.

[0003] Because magnetocardiography (MCG) systems contain a large number of probes that need to move synchronously, all probes are fixed to a probe housing. The movement of the probe housing achieves synchronized movement and positioning of all probes for detection. Existing MCG detection devices use a bridge-type support structure with vertical guide rails on both sides. The probe housing moves up and down on these rails. This bridge-type support structure can be installed on the bed and enter the magnetic shielding container with it, or it can be directly installed inside the magnetic shielding container. However, this solution typically requires a large inner diameter magnetic shielding container, making it unsuitable for smaller diameter containers. Furthermore, some existing MCG detection devices manually drive the probe housing, resulting in low detection efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a detection device for a magnetocardiogram (MCG) machine, which can automatically raise and lower the probe box, improve detection efficiency, and minimize magnetic interference to the probe inside the probe box, thus reducing the impact on the detection results. In addition, it occupies less space and has a simpler structure.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A detection device for a magnetocardiograph, comprising:

[0007] A lifting mechanism is configured to be housed within the receiving cavity of a magnetic shield. The lifting mechanism includes a support base, a probe box, and two cross arms. The support base is fixed within the receiving cavity. The two cross arms are disposed between the support base and the probe box, and are spaced apart and symmetrically arranged. The two ends of the first side of the cross arm along the height direction are rotatably connected to the support base and the probe box, respectively. The top end of the second side of the cross arm along the height direction is slidably disposed on the support base in the horizontal direction and can rotate relative to the support base. The bottom end of the second side of the cross arm along the height direction is slidably disposed on the probe box in the horizontal direction and can rotate relative to the probe box.

[0008] The traction mechanism includes an electric drive assembly and a traction rope. The electric drive assembly is configured to be located outside the magnetic shield. The traction rope passes through the cavity wall of the receiving cavity and is connected to the probe box. The electric drive assembly is used to pull the traction rope, causing the traction rope to move vertically to drive the probe box to move.

[0009] In some possible implementations, the lifting mechanism further includes a first synchronous shaft, to which the intersection of the two cross arms is rotatably connected.

[0010] In some possible implementations, both the bracket and the probe box are connected to a guide rail, and a slider is connected to the guide rail. The slider can slide horizontally on the guide rail, and both ends of the second side of the cross arm along the height direction can rotate relative to the corresponding slider.

[0011] In some possible implementations, the lifting mechanism further includes a second synchronous shaft, the two ends of which are respectively fixed to the sliders corresponding to the top ends of the second sides of the two cross arms along the height direction, and the top ends of the second sides of the two cross arms along the height direction are rotatably connected to the second synchronous shaft.

[0012] In some possible implementations, the detection device for the magnetocardiogram further includes two sets of synchronization components, each set corresponding to the top end of the second side of the two cross arms along the height direction. Each synchronization component includes a timing pulley and a timing belt. The timing belt is sleeved on the two timing pulleys. The slider corresponding to the top end of the second side of each cross arm along the height direction is fixed to one side of the timing belt. When the slider slides horizontally on the guide rail, the slider can drive the timing belt to move.

[0013] In some possible implementations, one of the timing pulleys of one set of the synchronization components is fitted onto the same shaft as one of the timing pulleys of another set of the synchronization components.

[0014] In some possible implementations, the slider corresponding to the top of the second side of each of the cross arms along the height direction is provided with a connecting portion, the synchronization assembly further includes a pressure block and a fastener, the lower section of the synchronization belt is sandwiched between the pressure block and the slider, and the fastener passes through the pressure block and is fixed to the connecting portion.

[0015] In some possible implementations, the traction mechanism further includes a lifting bracket and a guide roller. The lifting bracket is fixed to the probe box, the guide roller is rotatably mounted on the bracket seat, one end of the traction rope is fixed to the lifting bracket and extends vertically to the guide roller and is wound around the guide roller, and the other end of the traction rope is disposed on the electric drive assembly.

[0016] In some possible implementations, the traction mechanism further includes a fixed seat and a blocking member. The fixed seat is detachably disposed on the support seat, the guide roller is rotatably disposed on the fixed seat, and the blocking member is disposed on the fixed seat and spaced apart from the guide roller.

[0017] In some possible implementations, the electric drive assembly includes a servo motor and a winding reel, the servo motor driving the winding reel to rotate, and the traction rope wound around the winding reel.

[0018] The beneficial effects of this utility model are:

[0019] The present invention provides a detection device for a magnetocardiograph (MCC) including a lifting mechanism and a traction mechanism. After the electric drive assembly is energized, the traction rope lowers the probe box. Through the action of two cross arms, the probe box descends horizontally. During descent, the two ends of the first side of the cross arms rotate relative to the support base and the probe box, respectively, while the top end of the second side of the cross arms slides on the support base and can rotate relative to it. The bottom end of the second side of the cross arms slides on the probe box and can rotate relative to it. Simultaneously, the probe fixed to the probe box also descends. After descending to a preset position, the MCC begins detection. By setting an electric drive assembly to drive the traction rope to move vertically, thereby raising and lowering the probe box, automatic raising and lowering of the probe box can be achieved, improving detection efficiency. By placing the lifting mechanism within the cavity of the magnetic shielding component and the electric drive assembly outside the magnetic shielding component, with the traction rope passing through the cavity wall and connecting to the probe box, magnetic interference generated by the electric drive assembly on the probe inside the probe box can be minimized, reducing the impact on the detection results. In addition, by setting two cross arms, the probe box can be raised and lowered, which makes the overall device occupy less space and has a simpler structure. Attached Figure Description

[0020] Figure 1 This is an isometric view of the detection device for a magnetocardiogram provided by this utility model;

[0021] Figure 2 This is a top view of the detection device for a magnetocardiogram provided by this utility model;

[0022] Figure 3 yes Figure 2 Sectional view at point AA;

[0023] Figure 4 This is a structural schematic diagram of the slider, pressure block, synchronous belt, synchronous pulley, and synchronous pulley mounting base involved in this utility model;

[0024] Figure 5 This is a schematic diagram of the lifting bracket involved in this utility model;

[0025] Figure 6 This is a structural schematic diagram of the guide roller, traction rope, fixing seat and blocking component involved in this utility model.

[0026] In the picture:

[0027] 1. Lifting mechanism; 11. Support base; 12. Probe box; 13. Cross arm; 14. First synchronous shaft; 15. Guide rail; 16. Slider; 161. Connecting part; 17. Second synchronous shaft; 18. Synchronization assembly; 181. Synchronous pulley; 182. Synchronous belt; 183. Synchronous pulley mounting base; 184. Pressure block; 19. Rotating shaft;

[0028] 2. Traction mechanism; 21. Traction rope; 22. Lifting bracket; 221. Through hole; 222. Vertical guide groove; 23. Guide roller; 24. Fixing base; 25. Blocking component; 26. Servo motor; 27. Winding wheel. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figures 1 to 6 As shown, this utility model provides a detection device for a magnetocardiogram (MCG) machine, including a lifting mechanism 1 and a traction mechanism 2. The lifting mechanism 1 is configured to be disposed in the receiving cavity of a magnetic shield. The lifting mechanism 1 includes a support base 11, a probe box 12, and two cross arms 13. The support base 11 is fixed in the receiving cavity. The two cross arms 13 are disposed between the support base 11 and the probe box 12, and the two cross arms 13 are spaced apart and symmetrically arranged. Specifically, the cross arms 13 include two connecting rods of the same length, which are hinged at their respective centers. The two ends of the first side of the cross arms 13 along the height direction are rotatably connected to the support base 11 and the probe box 12, respectively. The top end of the second side of the cross arms 13 along the height direction is slidably disposed on the support base 11 in the horizontal direction and can rotate relative to the support base 11. The bottom end of the second side of the cross arms 13 along the height direction is slidably disposed on the probe box 12 in the horizontal direction and can rotate relative to the probe box 12. The traction mechanism 2 includes an electric drive assembly and a traction rope 21. The electric drive assembly is configured to be located outside the magnetic shield. The traction rope 21 passes through the cavity wall of the receiving cavity and is connected to the probe box 12. The electric drive assembly is used to pull the traction rope 21, causing the traction rope 21 to move vertically to drive the probe box 12 to move.

[0034] After the electric drive assembly is powered on, the traction rope 21 drives the probe box 12 to descend. Through the action of the two cross arms 13, the probe box 12 descends horizontally. During the descent, the two ends of the first side of the cross arms 13 rotate relative to the support base 11 and the probe box 12, respectively, along the height direction. The top end of the second side of the cross arms 13 slides on the support base 11 and can rotate relative to it, while the bottom end slides on the probe box 12 and can rotate relative to it. Simultaneously, the probe fixed to the probe box 12 also descends. After descending to the preset position, the magnetocardiograph begins its detection operation. By setting up the electric drive assembly to drive the traction rope 21 to move vertically, thereby raising and lowering the probe box 12, automatic raising and lowering of the probe box 12 can be achieved, improving detection efficiency. The lifting mechanism 1 is placed inside the housing cavity of the magnetic shield, while the electric drive assembly is located outside the magnetic shield. The traction rope 21 passes through the cavity wall and connects to the probe box 12. This minimizes magnetic interference from the electric drive assembly to the probe inside the probe box 12, reducing its impact on the detection results. Furthermore, by using two cross arms 13, the probe box 12 can be raised and lowered, resulting in a smaller overall footprint and simpler structure. In this embodiment, the magnetic shield is a magnetic shielding barrel, and this detection device for magnetocardiography can be adapted to small magnetic shielding barrels.

[0035] Optionally, the lifting mechanism 1 further includes a first synchronous shaft 14, and the intersection of the two cross arms 13 is rotatably connected to the first synchronous shaft 14. This arrangement allows the two cross arms 13 to move synchronously, so that the probe box 12 can maintain a better horizontal state when it is raised or lowered, thereby improving the accuracy of the detection.

[0036] Optionally, both the bracket 11 and the probe box 12 are connected to guide rails 15, and sliders 16 are connected to the guide rails 15. The sliders 16 can slide horizontally on the guide rails 15, and both ends of the second side of the cross arm 13 can rotate relative to the corresponding sliders 16 in the height direction. This configuration is simple and easy to install.

[0037] Optionally, the lifting mechanism 1 further includes a second synchronous shaft 17, the two ends of which are respectively fixed to the sliders 16 corresponding to the top ends of the second sides of the two cross arms 13 along the height direction. The top ends of the second sides of the two cross arms 13 along the height direction are rotatably connected to the second synchronous shaft 17. Through the above arrangement, the synchronization between the two cross arms 13 is further improved.

[0038] Optionally, the detection device for the magnetocardiograph further includes two sets of synchronization components 18. Each set of synchronization components 18 corresponds to one of the top ends of the second side of the two cross arms 13 along the height direction. Each synchronization component 18 includes a timing pulley 181 and a timing belt 182. The timing belt 182 is fitted onto the two timing pulleys 181. A slider 16 corresponding to the top end of the second side of each cross arm 13 along the height direction is fixed to one side of the timing belt 182. When the slider 16 slides horizontally on the guide rail 15, it drives the timing belt 182 to move. By setting the timing pulleys 181 and timing belt 182, the movement speed of the cross arms 13 is limited when the probe box 12 falls, making the operation smoother and more stable.

[0039] Furthermore, one of the synchronous pulleys 181 of one set of synchronous components 18 is fitted onto the same rotating shaft 19 as another synchronous pulley 181 of another set of synchronous components 18. This arrangement enables the synchronous rotation of the two synchronous pulleys 181 and the rotating shaft 19, thereby achieving synchronous movement of the two synchronous belts 182, allowing the probe box 12 to maintain a relatively horizontal state during lifting and lowering. In this embodiment, both ends of the rotating shaft 19 are rotatably connected to two synchronous pulley mounting seats 183, and both synchronous pulley mounting seats 183 are fixed to the support base 11.

[0040] Optionally, in this embodiment, the slider 16 corresponding to the top of the second side of each crossarm 13 along the height direction is fixed to the lower side of the timing belt 182. Specifically, as shown... Figure 4 As shown, each crossarm 13 has a connecting portion 161 at the top of its second side along the height direction. The synchronization assembly 18 also includes a pressure block 184 and a fastener. The lower section of the synchronization belt 182 is sandwiched between the pressure block 184 and the slider 16. The fastener passes through the pressure block 184 and is fixed to the connecting portion 161. This arrangement saves space and facilitates fixing the slider 16 to the synchronization belt 182. In other embodiments, the slider 16 at the top of its second side along the height direction is fixed to the upper section of the synchronization belt 182.

[0041] Optionally, in this embodiment, the traction mechanism 2 further includes a lifting bracket 22 and a guide roller 23. The lifting bracket 22 is fixed to the probe box 12, and the guide roller 23 is rotatably mounted on the bracket base 11. One end of the traction rope 21 is fixed to the lifting bracket 22 and extends vertically to the guide roller 23 and is wound around the guide roller 23. The other end of the traction rope 21 is disposed on the electric drive assembly. By setting the lifting bracket 22 and the guide roller 23, the movement of the traction rope 21 is guided. In addition, the guide roller 23 changes the traction direction of the electric drive assembly on the traction rope 21. By horizontally pulling the traction rope 21, the traction rope 21 can be moved vertically, which facilitates the installation of the electric drive assembly. Optionally, the lifting bracket 22 is detachably connected to the inner wall of the probe box 12 and is disposed near the first side of the cross arm 13. Furthermore, as Figure 5 As shown, the lifting bracket 22 is provided with a through hole 221 and a vertical guide groove 222. The through hole 221 is used to pass through the traction rope 21, and the vertical guide groove 222 guides the movement of the traction rope 21.

[0042] In addition, such as Figure 6 As shown, the traction mechanism 2 also includes a fixed base 24 and a blocking member 25. The fixed base 24 is detachably mounted on the support base 11, the guide roller 23 is rotatably mounted on the fixed base 24, and the blocking member 25 is mounted on the fixed base 24 and spaced apart from the guide roller 23. The detachable mounting of the fixed base 24 on the support base 11 facilitates the installation and removal of the guide roller 23. The blocking member 25 prevents the traction rope 21 from detaching from the guide roller 23.

[0043] Optionally, the electric drive assembly includes a servo motor 26 and a winding reel 27. The servo motor 26 drives the winding reel 27 to rotate, and the traction rope 21 is wound around the winding reel 27. By using the servo motor 26 and the winding reel 27 to pull the traction rope 21, high control precision is achieved, allowing precise control of the winding and unwinding length of the traction rope 21 to position the probe at a preset location. Specifically, the output end of the servo motor 26 is connected to a planetary reducer, which is drively connected to the winding reel 27.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A detection device for a magnetocardiograph, characterized in that, include: A lifting mechanism (1) is configured to be disposed in the receiving cavity of the magnetic shielding component. The lifting mechanism (1) includes a support base (11), a probe box (12), and two cross arms (13). The support base (11) is fixed in the receiving cavity. The two cross arms (13) are disposed between the support base (11) and the probe box (12), and the two cross arms (13) are spaced apart and symmetrically arranged. The two ends of the first side of the cross arm (13) along the height direction are rotatably connected to the support base (11) and the probe box (12) respectively. The top end of the second side of the cross arm (13) along the height direction is slidably disposed on the support base (11) along the horizontal direction and can rotate relative to the support base (11). The bottom end of the second side of the cross arm (13) along the height direction is slidably disposed on the probe box (12) along the horizontal direction and can rotate relative to the probe box (12). The traction mechanism (2) includes an electric drive assembly and a traction rope (21). The electric drive assembly is configured to be located outside the magnetic shield. The traction rope (21) passes through the cavity wall of the receiving cavity and is connected to the probe box (12). The electric drive assembly is used to pull the traction rope (21) so that the traction rope (21) moves vertically to drive the probe box (12) to move.

2. The detection device for a magnetocardiograph according to claim 1, characterized in that, The lifting mechanism (1) also includes a first synchronous shaft (14), and the intersection of the two cross arms (13) is rotatably connected to the first synchronous shaft (14).

3. The detection device for a magnetocardiograph according to claim 1, characterized in that, Both the bracket base (11) and the probe box (12) are connected to a guide rail (15). A slider (16) is connected to the guide rail (15). The slider (16) can slide horizontally on the guide rail (15). Both ends of the second side of the cross arm (13) along the height direction can rotate relative to the corresponding slider (16).

4. The detection device for a magnetocardiograph according to claim 3, characterized in that, The lifting mechanism (1) further includes a second synchronous shaft (17), the two ends of which are respectively fixed to the sliders (16) corresponding to the top ends of the second side of the two cross arms (13) along the height direction. The top ends of the second side of the two cross arms (13) along the height direction are rotatably connected to the second synchronous shaft (17).

5. The detection device for a magnetocardiograph according to claim 3, characterized in that, The detection device for the magnetocardiogram further includes two sets of synchronization components (18). The two sets of synchronization components (18) are respectively arranged with the top ends of the second side of the two cross arms (13) along the height direction. The synchronization component (18) includes a timing pulley (181) and a timing belt (182). The timing belt (182) is sleeved on the two timing pulleys (181). The slider (16) corresponding to the top end of the second side of each cross arm (13) along the height direction is fixed to one side of the timing belt (182). When the slider (16) slides horizontally on the guide rail (15), the slider (16) can drive the timing belt (182) to move.

6. The detection device for a magnetocardiograph according to claim 5, characterized in that, One of the timing pulleys (181) of one set of the synchronization components (18) and one of the timing pulleys (181) of another set of the synchronization components (18) are fitted onto the same shaft (19).

7. The detection device for a magnetocardiograph according to claim 5, characterized in that, Each of the cross arms (13) has a connecting part (161) at the top of the second side along the height direction of the corresponding slider (16). The synchronization assembly (18) also includes a pressure block (184) and a fastener. The lower section of the synchronization belt (182) is sandwiched between the pressure block (184) and the slider (16). The fastener passes through the pressure block (184) and is fixed to the connecting part (161).

8. The detection device for a magnetocardiograph according to any one of claims 1-7, characterized in that, The traction mechanism (2) further includes a lifting bracket (22) and a guide roller (23). The lifting bracket (22) is fixed to the probe box (12). The guide roller (23) is rotatably disposed on the bracket seat (11). One end of the traction rope (21) is fixed to the lifting bracket (22) and extends vertically to the guide roller (23) and is wrapped around the guide roller (23). The other end of the traction rope (21) is disposed on the electric drive assembly.

9. The detection device for a magnetocardiograph according to claim 8, characterized in that, The traction mechanism (2) further includes a fixed seat (24) and a blocking member (25). The fixed seat (24) is detachably disposed on the bracket seat (11). The guide roller (23) is rotatably disposed on the fixed seat (24). The blocking member (25) is disposed on the fixed seat (24) and spaced apart from the guide roller (23).

10. The detection device for a magnetocardiograph according to claim 8, characterized in that, The electric drive assembly includes a servo motor (26) and a winding wheel (27). The servo motor (26) is used to drive the winding wheel (27) to rotate, and the traction rope (21) is wound around the winding wheel (27).

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