Transverse moving device for in-hole bed board of magnetic resonance equipment

Abstract

The invention relates to the technical field of magnetic resonance equipment, in particular to a magnetic resonance equipment in-hole bed board transverse moving device which comprises a supporting frame penetrating through a magnetic resonance equipment inspection hole and an inspection bed located on the side portion of magnetic resonance equipment. The examination bed comprises a bed body and a bed board slidably mounted at the upper end of the bed body, and when the bed board slides relative to the bed body, one end of the bed board can slide to the supporting frame and continuously slide into an examination hole of the magnetic resonance equipment along the supporting frame. The supporting frame and the examination bed can synchronously and transversely move in the direction perpendicular to the axis of an examination hole of the magnetic resonance equipment. According to the in-hole bed board transverse moving device for the magnetic resonance equipment, the supporting frame and the examination bed are designed to be of a structure capable of synchronously and transversely moving, so that transverse moving of the bed board in the examination hole of the magnetic resonance equipment is achieved, moving of a patient during magnetic resonance examination is facilitated, and the in-hole bed board transverse moving device has the advantages of being simple in structure and convenient to use. The device has the advantages of stable movement, accurate positioning, flexible adjustment, improvement of examination efficiency and image quality, reduction of motion artifacts and the like, and is particularly suitable for magnetic resonance equipment with a larger aperture.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic resonance equipment, and particularly to a transverse translation device for a bed board inside the bore of a magnetic resonance device. Background Art

[0002] Magnetic resonance imaging, also known as nuclear magnetic resonance, NMR, or MRI, is a commonly used diagnostic examination method in clinical practice. It mainly uses a magnetic resonance device to obtain images of the diseased part of a patient by scanning, helping doctors understand whether there are lesions in the examined part of the patient, as well as the scope and degree of the lesions, etc., providing a basis for subsequent diagnosis and treatment. Magnetic resonance imaging can be applied to examinations of various parts of the body.

[0003] During magnetic resonance examination, an examination bed is used to send the patient to the central examination bore of the magnetic resonance imaging device for examination; and the part to be scanned should be located in the imaging area of the magnetic resonance device. Therefore, it is inevitable to move the patient or require the patient to cooperate with the movement, especially during a full-body examination of the patient or a combined examination of multiple parts of the body. When the patient has limited mobility, severe pain, or is a fracture patient or a child patient, it is very difficult to cooperate with the movement.

[0004] During the implementation of magnetic resonance interventional surgery, in order to facilitate the operation of doctors, it is also necessary to move the patient. In the existing magnetic resonance devices, the examination bed can only move axially along the central bore of the magnetic resonance device and cannot move horizontally.

[0005] Therefore, designing a transverse translation device for a bed board inside the bore of a magnetic resonance device has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a transverse translation device for a bed board inside the bore of a magnetic resonance device, which designs the support frame and the examination bed to be structures that can move horizontally synchronously, so as to realize the horizontal translation of the bed board inside the magnetic resonance central bore, facilitate the movement of the patient during magnetic resonance examination, and has the advantages of simple structure, stable movement, and easy operation.

[0007] To solve the above problems, the technical solution adopted by the present invention is as follows: A transverse translation device for a bed board inside the bore of a magnetic resonance device includes a support frame penetrating through the examination bore of the magnetic resonance device and an examination bed located on the side of the magnetic resonance device; the examination bed includes a bed body and a bed board slidably installed on the upper end of the bed body. When the bed board slides relative to the bed body, one end of it can slide onto the support frame and continue to slide along the support frame into the examination bore of the magnetic resonance device; the support frame and the examination bed can move horizontally synchronously along the direction perpendicular to the axis of the examination bore of the magnetic resonance device.

[0008] As an improvement, it further includes a connecting plate located outside the magnetic resonance device and a first power unit drivingly connected to the connecting plate. The two ends of the connecting plate are respectively fixedly connected to the two ends of the support frame; the first power unit can drive the connecting plate and the support frame to move horizontally.

[0009] As an improvement, it further includes first guide rails respectively arranged at both ends of the magnetic resonance device. First sliders are provided at both ends of the support frame, and the first sliders are slidably mounted on the corresponding first guide rails.

[0010] As an improvement, support connection parts are provided at both ends of the support frame, and the first sliders are respectively provided at the lower ends of the two support connection parts.

[0011] As an improvement, fixing parts are provided on both of the two support connection parts. The connecting plate is a U-shaped plate, and the two ends of the connecting plate are respectively fixedly connected to the two fixing parts.

[0012] As an improvement, the first power unit includes a first servo motor fixedly installed and a lead screw drivingly connected to the first servo motor; a threaded hole adapted to the size of the lead screw is provided on the connecting plate, and the lead screw passes through the threaded hole and is drivingly connected to the threaded hole.

[0013] As an improvement, it further includes a second power unit and a fixed seat arranged under the bed body. The bed body is slidably mounted on the fixed seat; the second power unit can drive the bed body to move horizontally on the fixed seat.

[0014] As an improvement, the second power unit includes a second servo motor fixedly installed on the bed body, and a gear is installed on the output shaft of the second servo motor; a rack meshing with the gear is provided on the fixed seat; the extending direction of the rack is perpendicular to the axis of the inspection hole of the magnetic resonance device.

[0015] As an improvement, two second guide rails are spaced apart on the fixed seat, and a plurality of second sliders are provided on the bed body, and the plurality of second sliders are respectively slidably mounted on the two second guide rails.

[0016] As an improvement, two third guide rails are spaced apart at the upper end of the support frame, and a plurality of third sliders are provided on the bed board; when one end of the bed board slides onto the support frame, the plurality of third sliders respectively slide on the two third guide rails.

[0017] The present invention adopts the above technical solutions, and compared with the prior art, has the following advantages: The in-bore bedplate transverse movement device of this magnetic resonance equipment can not only drive the bedplate to drive the patient to move along the axial direction of the inspection hole of the magnetic resonance equipment, but also drive the patient to move horizontally, which is convenient for inspection, accurately locates the patient's part to be scanned, avoids repeated adjustment of the patient's body position, shortens the inspection time, improves the inspection efficiency and image quality, and reduces motion artifacts. It is especially suitable for patients with limited mobility, severe pain or fractures. It allows the patient to lie flat on the bedplate in a relatively comfortable position, and then avoid aggravating the discomfort of the body due to self-adjusting the posture through the axial movement or transverse movement of the bedplate, reducing the patient's pain. For the scanning of obese, pediatric or patients with special body types, it can reduce the risk of inspection failure caused by difficult body movement.

[0018] For multi-site combined scanning, such as cardiopulmonary scanning and thoracic spine scanning, the in-bore bedplate transverse movement device of this magnetic resonance equipment can quickly switch the patient's position, reducing the trouble of the patient repeatedly entering and exiting the equipment. The in-bore bedplate transverse movement device of this magnetic resonance equipment operates smoothly, can avoid the slight movement caused by the patient's self-adjusting posture, and reduces the risk of image blurring or artifacts, which is crucial for the inspection of fine parts, such as cranial nerves and articular cartilage.

[0019] The in-bore bedplate transverse movement device of this magnetic resonance equipment can also be used in puncture or surgery guided by the magnetic resonance equipment. The flexible movement of the bedplate can assist the doctor to more accurately locate the lesion and meet the needs of special inspections.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0021] Figure 1 Is a three-dimensional schematic of an in-bore bedplate transverse movement device of the present invention Figure 1 ; Figure 2 Is a structural schematic diagram of an in-bore bedplate transverse movement device of the present invention; Figure 3 Is a three-dimensional schematic of an in-bore bedplate transverse movement device of the present invention Figure 2 ; Figure 4 Is Figure 2 The enlarged view at A in Figure 5 Is Figure 2 The enlarged view at B in Figure 6 Is Figure 3 The enlarged view at C in Wherein: 1-support frame, 2-examination bed, 3-bed board, 4-bed body, 5-first guide rail, 6-first slider, 7-support connection part, 8-connecting plate, 9-fixing part, 10-first servo motor, 11-screw, 12-screw hole, 13-fixing seat, 14-second servo motor, 15-gear, 16-rack, 17-second guide rail, 18-second slider, 19-third guide rail, 20-first mounting seat, 21-second mounting seat, 22-third mounting seat, 23-coupling, 24-avoidance hole. DETAILED DESCRIPTION

[0022] Example

[0023] like Figures 1 to 6 As shown together, a device for transversely moving a bed board in a magnetic resonance device hole includes a support frame 1 that penetrates the inspection hole of the magnetic resonance device and an inspection bed 2 located at the side of the magnetic resonance device. The inspection bed 2 includes a bed body 4 and a bed board 3 slidably mounted on the upper end of the bed body 4, and the extension direction of the bed board 3 is parallel to the axis of the inspection hole of the magnetic resonance device. When the bed board 3 slides relative to the bed body 4, one end of the bed board 3 can slide onto the support frame 1 and continue to slide along the support frame 1 into the inspection hole of the magnetic resonance device. The support frame 1 and the inspection bed 2 can move synchronously laterally along the direction perpendicular to the axis of the inspection hole of the magnetic resonance device. In this embodiment, preferably, two third guide rails 19 arranged at intervals are provided at the upper end of the support frame 1, and a plurality of third sliders are provided on the bed board 3; when one end of the bed board 3 slides to the support frame 1 and the plurality of third sliders are located above the support frame 1, the plurality of third sliders slide on the two third guide rails 19 respectively. The number of the third sliders in this embodiment is illustrated by taking four as an example.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown together, the bed board transverse movement device in the bore of the magnetic resonance device further includes a horizontally arranged connecting plate 8 located outside the magnetic resonance device and a first power unit drivingly connected to the connecting plate 8. In this embodiment, preferably, the connecting plate 8 is a U-shaped plate; the two ends of the connecting plate 8 are respectively fixedly connected to the two ends of the support frame 1; and the first power unit can drive the connecting plate 8 and the support frame 1 to transversely move.

[0025] The device for transversely moving the bed board in the bore of the magnetic resonance device also includes first guide rails 5 respectively arranged at the two ends of the magnetic resonance device, and first sliders 6 are respectively arranged at the two ends of the support frame 1, and the first sliders 6 are slidably installed on the corresponding first guide rails 5. Preferably in this embodiment, support connection parts 7 are respectively arranged at both ends of the support frame 1, and the arrangement of the support connection parts 7 makes the support frame 1 present a "J" shape. The lower ends of the two support connection parts 7 are respectively provided with the first sliders 6; the lower ends of the two support connection parts 7 are respectively provided with vertically arranged fixing parts 9 extending downward, and the fixing parts 9 are located on the inner side of the first slider 6; the two ends of the connecting plate 8 are respectively detachably fixedly connected to the two fixing parts 9 by fasteners. The fasteners are preferably a combination of bolts and nuts.

[0026] like Figures 1 to 6 As shown together, the first power unit includes a fixedly mounted first servo motor 10 and a lead screw 11 drivingly connected to the first servo motor 10. The connecting plate 8 is provided with a screw hole 12 matching the size of the lead screw 11, and the lead screw 11 passes through the screw hole 12 and is drivingly connected to the screw hole 12.

[0027] In this embodiment, preferably, in actual application, the connecting plate 8 is set below the ground, the fixing portion 9 extends downward to below the ground and is fixedly connected to the connecting plate 8; the bottom surface of the first guide rail 5 is flush with the ground; and the first mounting seat 20, the second mounting seat 21 and the third mounting seat 22 are arranged in sequence at intervals on the side of the magnetic resonance device. The two ends of the lead screw 11 are rotatably mounted on the first mounting seat 20 and the second mounting seat 21, respectively, and the first mounting seat 20 and the second mounting seat 21 are respectively located on both sides of the connecting plate 8. The first servo motor 10 is fixedly mounted on the third mounting seat 22, and the output shaft of the first servo motor 10 is directly connected to the lead screw 11 through a coupling 23.

[0028] like Figures 1 to 6 As shown together, the device for transversely moving the bed board in the hole of the magnetic resonance device also includes a second power unit and a fixed seat 13 arranged below the bed body 4, and the bed body 4 is slidably mounted on the fixed seat 13. The second power unit drives the bed body 4 to move laterally on the fixed seat 13. Preferably in this embodiment, the second power unit includes a second servo motor 14 fixedly mounted on the bed body 4, and a gear 15 is mounted on the output shaft of the second servo motor 14; a rack 16 meshing with the gear 15 is provided on the fixed seat 13; the extension direction of the rack 16 is perpendicular to the axis of the inspection hole of the magnetic resonance device. Two second guide rails 17 arranged at intervals are provided on the fixed seat 13, and a plurality of second sliders 18 are provided on the bed body 4, and the plurality of second sliders 18 are slidably mounted on the two second guide rails 17 respectively.

[0029] The examination bed 2 of the in-bore bedplate transverse movement device of this magnetic resonance equipment is height-adjustable, and the bedplate 3 of the examination bed 2 can slide relative to the bed body 4. In the prior art, the structures capable of adjusting the height of the examination bed 2 and the structure capable of horizontally sliding the bedplate 3 on the bed body 4 can both be used in this embodiment. In particular, in the Chinese patents with the publication number CN115251892A and the invention title of "A Magnetic Resonance Scanning Bed" and the publication number CN115068262A and the invention title of "A Horizontal Reciprocating Conveyor System for Magnetic Resonance Interventional Surgery", a liftable bed and a horizontal reciprocating conveyor system for conveying the bed body are respectively disclosed; the above structures can all be used for the examination bed 2 in this embodiment; the structure of the examination bed 2 will not be elaborated here.

[0030] A long strip-shaped avoidance hole 24 is provided at the position of the bed body 4 corresponding to the rack 16, and the tooth part of the rack 16 protrudes above the avoidance hole 24. When the second servo motor 14 works, the bed body 4 is driven to slide horizontally on the fixed seat 13 along the second guide rail 17 through the meshing transmission of the gear 15 and the rack 16.

[0031] When the in-bore bedplate transverse movement device of this magnetic resonance equipment is in use, the patient lies on the bedplate 3, and the bed body 4 is controlled to move horizontally on the bedplate 3 to a suitable position in the examination hole of the magnetic resonance equipment for convenient examination. When the patient needs to be transversely moved, the first servo motor 10 and the second servo motor 14 are controlled to work simultaneously, driving the support frame 1, the examination bed 2, the bedplate 3, and the patient to move horizontally to the target position synchronously to cooperate with the examination. After the examination is completed, the bedplate 3 is controlled to slide relative to the bed body 4 and withdraw from the examination hole of the magnetic resonance equipment. As for how to control the first servo motor 10 and the second servo motor 14 to work simultaneously and the support frame 1 and the examination bed 2 to move horizontally synchronously, it belongs to a relatively mature electrical control technology in the prior art. This electrical control technology is not the improvement point of this application and will not be elaborated here. Any control method in the prior art that can control the two to achieve synchronous movement driven by the servo motor can be used in this application.

[0032] The in-bore bedplate transverse movement device of this magnetic resonance equipment can not only drive the bedplate 3 to drive the patient to move along the axis of the examination hole of the magnetic resonance equipment, but also drive the patient to move transversely, which is convenient for examination, accurately locates the patient's part to be scanned, avoids repeated adjustment of the patient's body position, shortens the examination time, improves the examination efficiency and image quality, and reduces motion artifacts. It is especially suitable for patients with inconvenient mobility, severe pain or fractures. After allowing the patient to lie flat on the bedplate 3 in a relatively comfortable position, axial movement or transverse movement of the bedplate 3 can be used to avoid aggravating the body discomfort due to self-adjusting the posture and reduce the patient's pain. For the scanning of obese, children or patients with special body types, it can reduce the risk of examination failure caused by difficult body movement.

[0033] For multi-site combined scans that are required, such as cardiopulmonary scans and thoracic spine scans, the in-bore bed plate lateral translation device of this magnetic resonance equipment can quickly switch the patient's position, reducing the trouble of the patient repeatedly entering and exiting the equipment. The in-bore bed plate lateral translation device of this magnetic resonance equipment operates smoothly, can avoid slight movements caused by the patient's self-adjustment of posture, and reduces the risk of image blurring or artifacts. This is particularly crucial for examinations of delicate parts, such as cranial nerves and articular cartilage.

[0034] The in-bore bed plate lateral translation device of this magnetic resonance equipment can also be used in punctures or surgeries guided by magnetic resonance equipment. The flexible movement of the bed plate can assist doctors in more accurately positioning the lesion, meeting the needs of special examinations.

[0035] In summary, for an in-bore bed plate lateral translation device of a magnetic resonance equipment according to the present invention, the support frame and the examination bed are designed as structures that can move laterally synchronously to achieve the lateral translation of the bed plate within the examination bore of the magnetic resonance equipment, facilitating the movement of the patient during magnetic resonance examinations. It has the advantages of simple structure, smooth movement, precise positioning, flexible adjustment, improved examination efficiency and image quality, and reduced motion artifacts. It is particularly suitable for magnetic resonance equipment with a larger bore diameter.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transverse movement device for the bed board inside the bore of a magnetic resonance device, characterized in that: It includes a support frame (1) running through the inspection hole of the magnetic resonance equipment and an examination couch (2) located on the side of the magnetic resonance equipment; the examination couch (2) includes a couch body (4) and a couch board (3) slidably mounted on the upper end of the couch body (4). When the couch board (3) slides relative to the couch body (4), one end of it can slide onto the support frame (1) and continue to slide along the support frame (1) into the inspection hole of the magnetic resonance equipment; The support frame (1) and the examination couch (2) can move synchronously in the lateral direction perpendicular to the axis of the inspection hole of the magnetic resonance equipment; It also includes a connecting plate (8) located outside the magnetic resonance equipment and a first power unit drivingly connected to the connecting plate (8). The two ends of the connecting plate (8) are respectively fixedly connected to the two ends of the support frame (1); the first power unit can drive the connecting plate (8) and the support frame (1) to move horizontally; It also includes a second power unit and a fixed seat (13) arranged below the couch body (4), and the couch body (4) is slidably mounted on the fixed seat (13); the second power unit can drive the couch body (4) to move horizontally on the fixed seat (13).

2. The in-bore bedplate transverse movement device of the magnetic resonance equipment according to claim 1, characterized in that: It also includes first guide rails (5) respectively arranged at both ends of the magnetic resonance equipment. First sliders (6) are provided at both ends of the support frame (1), and the first sliders (6) are slidably mounted on the corresponding first guide rails (5).

3. The in-bore couch lateral translation device of the magnetic resonance apparatus according to claim 2, characterized in that: Support connection parts (7) are provided at both ends of the support frame (1), and the first sliders (6) are respectively provided at the lower ends of the two support connection parts (7).

4. The in-bore bedplate transverse movement device of the magnetic resonance apparatus according to claim 3, characterized in that: Fixing parts (9) are provided on both of the two support connection parts (7). The connecting plate (8) is a U-shaped plate, and the two ends of the connecting plate (8) are respectively fixedly connected to the two fixing parts (9).

5. The crosswise moving device for the couch inside the bore of the magnetic resonance apparatus according to any one of claims 1 to 4, characterized in that: The first power unit includes a first servo motor (10) fixedly installed and a lead screw (11) drivingly connected to the first servo motor (10); a threaded hole (12) adapted to the size of the lead screw (11) is provided on the connecting plate (8), and the lead screw (11) passes through the threaded hole (12) and is drivingly connected to the threaded hole (12).

6. The crosswise moving device for the bed board inside the bore of the magnetic resonance apparatus according to any one of claims 1 to 4, characterized in that: The second power unit includes a second servo motor (14) fixedly installed on the couch body (4). A gear (15) is installed on the output shaft of the second servo motor (14); a rack (16) meshing and driving with the gear (15) is provided on the fixed seat (13); the extending direction of the rack (16) is perpendicular to the axis of the inspection hole of the magnetic resonance equipment.

7. The crosswise movement device of the couch inside the bore of the magnetic resonance apparatus according to any one of claims 1 to 4, characterized in that: Two second guide rails (17) are provided on the fixed seat (13) at intervals. A plurality of second sliders (18) are provided on the couch body (4), and the plurality of second sliders (18) are respectively slidably mounted on the two second guide rails (17).

8. The crosswise bedplate translation device within the bore of the magnetic resonance apparatus according to any one of claims 1 to 4, characterized in that: Two third guide rails (19) are provided at intervals on the upper end of the support frame (1). A plurality of third sliders are provided on the couch board (3); when one end of the couch board (3) slides onto the support frame (1), the plurality of third sliders slide on the two third guide rails (19) respectively.

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