A nuclear magnetic machine auxiliary instrument device

Abstract

The utility model discloses a kind of auxiliary instrument devices of nuclear magnetic machine, comprising: walking lifting mechanism, metal detection mechanism and docking translation bed.In clinical application, medical staff can control this device to move to the side of nuclear magnetic examination bed, and the height of docking translation bed is adjusted by walking lifting mechanism, then according to the sliding direction of nuclear magnetic examination bed layout adjustment, finally docking translation bed is translated to nuclear magnetic examination bed, avoid the risk that may occur in traditional manual handling, such as slide, knock and so on, effectively guarantee the safety of action inconvenient or special size patient in the process of nuclear magnetic machine transfer;Operation mode is simple, easy to adjust, can be adjusted according to the state of different height, different nuclear magnetic examination bed layout, to realize the stable docking with nuclear magnetic examination bed, with higher adaptability;Metal product prescreening can be carried out using metal detection mechanism before examination, to avoid the situation that patient carries metal object without knowing.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment auxiliary device technology, and in particular to an auxiliary device for an MRI machine. Background Technology

[0002] Currently, most MRI examination beds widely used in clinical practice are standard flat-panel designs. Their main function is to support patients and complete the scanning process before they are placed on the bed. They do not integrate a dedicated mechanism for docking with wheelchairs or stretchers.

[0003] Therefore, patient transfers primarily rely on manual handling by medical staff or the use of simple transfer boards or other non-specialized tools. For patients who are unconscious, immobile, or sensitive to pain, there is a risk of slipping and falling during transfer, and improper handling procedures may further lead to iatrogenic injuries. Furthermore, there are significant differences in the ground clearance of examination beds across different brands of equipment, typically ranging from 15 cm to 45 cm. When patients need to be transferred between multiple machines or changed examination rooms, these height differences make the transfer process more difficult. Existing assistive devices, such as simple transfer boards, lack standardized, wide-range adjustment mechanisms and are ill-suited to these height differences. Moreover, frequent patient transfers are challenging for medical staff, being time-consuming, labor-intensive, and risky. Therefore, existing MRI examination beds and their assistive methods have significant deficiencies and shortcomings in terms of patient transfer safety, equipment compatibility, adaptability to patients with special body types, and clinical work efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an auxiliary device for an nuclear magnetic resonance (NMR) machine. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or to define the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0005] The present invention adopts the following technical solution:

[0006] A nuclear magnetic resonance imaging (NMR) machine auxiliary device is provided, comprising: a traveling and lifting mechanism, a metal detection mechanism, and a docking and translating bed. The docking and translating bed is disposed on top of the traveling and lifting mechanism, and the metal detection mechanism is located below the docking and translating bed. A transverse guide rod and a longitudinal guide rod are disposed on the top of the traveling and lifting mechanism, and a universal joint is disposed between the transverse guide rod and the longitudinal guide rod. A steering guide rod is disposed on the universal joint. A rotary seat is disposed at the bottom of the docking and translating bed, and a slide is disposed on the rotary seat. A sliding groove adapted to the transverse guide rod, the longitudinal guide rod, and the steering guide rod is formed on the slide.

[0007] Furthermore, the walking lifting mechanism includes: a top side lifting part and a bottom side fixing part; the top side lifting part includes: a support platform; there are two transverse guide rods, which are parallel to each other and arranged in the transverse direction of the support platform at the top of the front and rear ends of the support platform; there are two longitudinal guide rods, which are parallel to each other and arranged in the longitudinal direction of the support platform at the top of the left and right ends of the support platform.

[0008] Furthermore, the transverse guide rod, the longitudinal guide rod, and the steering guide rod are cylindrical rods with the same diameter, and the sliding groove opened on the lower surface of the slide block is a semi-circular groove, so that the transverse guide rod, the longitudinal guide rod, and the steering guide rod can be embedded into the sliding groove.

[0009] Furthermore, the bottom fixing part is a cuboid frame assembled from several rods, the vertical rods of the cuboid frame are hollow tubes, and a lifting drive is installed inside the hollow tubes; the top lifting part also includes: a support rod disposed on the lower surface of the support platform, the support rod extending into the hollow tubes and connected to the actuating end of the lifting drive.

[0010] Furthermore, the lifting drive is a hydraulic cylinder, a pneumatic cylinder, or a worm gear transmission mechanism.

[0011] Furthermore, the metal detection mechanism includes: a metal detector and sliding sleeves disposed at both ends of the metal detector; the two sliding sleeves are respectively sleeved on two longitudinal members on the top side of the cuboid frame, so that the metal detector can move along the longitudinal direction of the cuboid frame.

[0012] Furthermore, the aforementioned nuclear magnetic resonance imaging (NMR) auxiliary device further includes: a limiting and locking device, the limiting and locking device comprising: an operating rod and a stud disposed on the operating rod; the steering guide rod and the slide have threaded grooves adapted to the stud.

[0013] Furthermore, a walking wheel is provided at the bottom of the bottom side fixing part.

[0014] The beneficial effects of this utility model are:

[0015] 1. In clinical applications, medical staff can operate this device to move it to the side of the MRI examination bed, adjust the height of the docking translation bed through the walking lifting mechanism, adjust the sliding direction according to the layout of the MRI examination bed, and finally move the docking translation bed onto the MRI examination bed. This avoids the risks of slipping and bumping that may occur in traditional manual handling, and effectively ensures the safety of patients with limited mobility or special body types during the transfer to the MRI machine.

[0016] 2. The structure of this application is simple and stable, and it has the advantages of simple operation and easy adjustment. Moreover, it can adjust its own state according to different heights and different placement layouts of MRI examination tables to achieve smooth docking with MRI examination tables, and has high adaptability.

[0017] 3. Metal detection agencies can be used for pre-screening of metal objects before the examination to avoid patients carrying metal objects without their knowledge. The detection process does not require the patient to move, nor does it require medical staff to use handheld detectors for cumbersome full-body scans, which greatly simplifies the operation process and saves pre-examination time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an auxiliary device for a nuclear magnetic resonance (NMR) machine according to this utility model;

[0020] Figure 2 This is a schematic diagram illustrating the combined use of the universal joint and the slide of this utility model;

[0021] Figure 3 This is a schematic diagram showing the arrangement of the universal joint, the transverse guide rod, and the longitudinal guide rod of this utility model;

[0022] Figure 4 This is a front structural schematic diagram of an auxiliary instrument device for a nuclear magnetic resonance machine according to this utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the universal joint and the slide of this utility model. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] like Figure 1-5As shown in some illustrative embodiments, an auxiliary device for an MRI machine is provided for docking with the examination bed of the MRI machine body, assisting patients with mobility impairments in getting on and off the examination bed, ensuring the personal safety of patients, and reducing the labor intensity of medical staff. Specifically, it includes: a walking and lifting mechanism 100, a metal detection mechanism 200, a docking and translational bed 300, and a limit locking device 400.

[0026] The traveling lifting mechanism 100 includes: a top side lifting part 110 and a bottom side fixing part 120.

[0027] The docking translation bed 300 is mounted on top of the top lifting unit 110 and can slide on it, serving as a platform for patient transport and transfer. The top lifting unit 110 can move up and down on the bottom fixing unit 120, thereby raising and lowering the docking translation bed 300 to accommodate MRI examination beds of different heights. The bottom of the bottom fixing unit 120 is equipped with casters 121 to facilitate the movement of the entire walking lifting mechanism 100.

[0028] The bottom fixing part 120 serves to provide structural support, accommodate internal components, and enable the movement of the entire machine. Specifically, the bottom fixing part 120 is a cuboid frame assembled from several rods, and the assembly method can be existing connection methods such as welding or bolting. The cuboid frame structure serves as the chassis of the entire metal detection mechanism 200, offering high stability and providing sufficient internal space for the installation of the metal detection mechanism 200 and other structures. It also reduces the overall weight of the machine, preventing excessive weight from hindering operation and facilitating movement by medical personnel.

[0029] The vertical members in the cuboid frame are hollow tubes 122 with openings at the top, and a lifting actuator 123 is installed inside the hollow tube 122. The top lifting part 110 includes a support platform 112 and a support rod 111 disposed on the lower surface of the support platform 112. The bottom end of the support rod 111 extends into the hollow tube 122 and is connected to the actuating end of the lifting actuator 123. The hollow tube 122 is not only a load-bearing structure of the cuboid frame, but also serves as a guide sleeve for the support rod 111, ensuring the stability of the top lifting part 110 during the rising and falling process, preventing tilting or swaying. In use, when the lifting actuator 123 is activated, its actuating end extends or retracts axially, thereby directly pushing or pulling the support rod 111 to move smoothly vertically within the hollow tube 122. Since the support rod 111 is fixedly connected to the support platform 112, the support platform 112 and the docking translation bed 300 on it rise or fall smoothly.

[0030] The lifting actuator 123 is a hydraulic cylinder, pneumatic cylinder, or worm gear transmission mechanism. A hydraulic cylinder pumps hydraulic oil into the cylinder body via a hydraulic pump, pushing the piston rod to extend and retract; the outer end of the piston rod is the actuating end of the lifting actuator 123. A pneumatic cylinder uses compressed air to drive the piston; the outer end of the piston rod of the pneumatic cylinder is the actuating end of the lifting actuator 123. The principle of a worm gear transmission mechanism is that the worm wheel drives the worm to rotate, and the rotation of the worm is converted into linear motion of the support rod 111 through a nut meshing with it; that is, the worm is the actuating end of the lifting actuator 123.

[0031] When the lifting drive 123 uses a hydraulic cylinder or a pneumatic cylinder, the operating switch for starting the hydraulic cylinder or the pneumatic cylinder can be set on the top of the bottom fixing part 120 for easy manual operation by medical staff. Alternatively, the operating switch can be designed as a foot pedal and arranged on the bottom side of the bottom fixing part 120 so that medical staff can operate it with their feet.

[0032] When the lifting drive 123 adopts a worm gear transmission mechanism, medical staff can drive the bed lifting by hand. That is, the hand crank is connected to the worm gear in the worm gear transmission mechanism, and the worm gear is driven to rotate by the hand crank. When there is an external power supply, the worm gear can be driven to rotate by the external power supply of the motor.

[0033] The metal detection mechanism 200 is mounted on the bottom fixing part 120. At the same time, the metal detection mechanism 200 is located below the docking translation bed 300 and can be moved from one side to the other under the docking translation bed 300. During the movement, the metal detection mechanism 200 checks whether the patient lying on the docking translation bed 300 is carrying metal objects.

[0034] Specifically, the metal detection mechanism 200 includes a metal detector 210 and sliding sleeves 220 disposed at both ends of the metal detector 210. The metal detector 210 can be any existing instrument capable of detecting the presence of metal. The two sliding sleeves 220 are respectively fitted onto two longitudinal members 124 on the top side of the cuboid frame, so that the metal detector 210 can move along the longitudinal direction of the cuboid frame.

[0035] The detection process requires no patient movement and eliminates the need for medical staff to perform cumbersome full-body scans using handheld detectors. It enables comprehensive pre-screening of metal objects from head to toe, and its simple design simplifies the process and saves pre-screening time. The metal detection device 200 serves as a pre-screening step before patients enter the scanning room, complementing the formal security checks. This dual protection minimizes the risk of patients bringing metal objects into a strong magnetic field environment due to negligence or lack of awareness, which could lead to equipment damage, image artifacts, or even serious personal injury.

[0036] The upper surface of the docking translation bed 300 is a downwardly concave arc surface, and the curvature of the arc surface matches the human body. It can not only comfortably accommodate the patient's body, but also form protective edges on both sides of the docking translation bed 300. The depth of the arc surface and the height of the edges provide effective physical barriers when the bed board tilts or the patient moves involuntarily.

[0037] The docking translation bed 300 is made of high-performance non-metallic materials, specifically carbon fiber composites. Carbon fiber composites have high specific strength and specific stiffness, making them lightweight, easy to move, and possessing strong load-bearing capacity and resistance to deformation. Furthermore, carbon fiber composites are completely non-magnetic, allowing patients to be directly inserted into the MRI scanner's examination chamber for testing. The docking translation bed 300 can also be made of glass fiber reinforced composites, which are relatively inexpensive and possess similarly excellent mechanical properties and MRI compatibility.

[0038] A horizontal guide rod 113 and a vertical guide rod 114 are provided at the top of the traveling lifting mechanism 100, i.e., at the four edges of the upper surface of the support platform 112. The support platform 112 is a rectangular flat plate structure, and there are two horizontal guide rods 113 and two vertical guide rods 114. The two horizontal guide rods 113 are parallel to each other and are arranged at the top of the front and rear ends of the support platform 112 along the horizontal direction, which is the width direction of the support platform 112. There are two vertical guide rods 114, which are perpendicular to the horizontal guide rods 113, and the two vertical guide rods 114 are parallel to each other and are arranged at the top of the left and right ends of the support platform 112 along the longitudinal direction, which is the length direction of the support platform 112.

[0039] The transverse guide rod 113 and the longitudinal guide rod 114 serve as guiding structures for the docking translation bed 300, while also providing support for its translation. The docking translation bed 300 can move along the arrangement direction of the transverse guide rod 113, allowing it to be pushed out laterally along the support platform 112. This is applicable in scenarios where the MRI auxiliary instrument device of this application is located on the side of the MRI examination bed. The docking translation bed 300 can also move along the arrangement direction of the longitudinal guide rod 114, allowing it to be pushed out longitudinally along the support platform 112. This is applicable in scenarios where the MRI auxiliary instrument device of this application is located at the end of the MRI examination bed. Therefore, this application can adjust its own state according to MRI examination beds of different heights and layouts to achieve smooth docking with the MRI examination bed, exhibiting high adaptability and adjustability.

[0040] A universal joint 115 is provided between the transverse guide rod 113 and the longitudinal guide rod 114. Specifically, the universal joint 115 is located at the four corners of the upper surface of the support plate 11, and is positioned between the closest ends of the transverse guide rod 113 and the longitudinal guide rod 114. A steering guide rod 116 is provided on the universal joint 115, allowing the steering guide rod 116 to rotate freely on the support plate 11, thereby achieving docking with the transverse guide rod 113 or docking with the longitudinal guide rod 114 after rotating 90°.

[0041] A rotary seat 310 is provided at the bottom of the docking translation bed 300. Specifically, rotary seats 310 are provided at the four corners of the lower surface of the docking translation bed 300, and slides 320 are provided on the rotary seats 310 so that the slides 320 can rotate at the bottom of the docking translation bed 300, thereby achieving docking with the transverse guide rod 113 or docking with the longitudinal guide rod 114 after rotating 90°. The slides 320 are provided with sliding grooves 330 that are adapted to the transverse guide rod 113, the longitudinal guide rod 114 and the steering guide rod 116. The transverse guide rod 113, longitudinal guide rod 114, and steering guide rod 116 are cylindrical rods with the same diameter. The sliding groove 330 on the lower surface of the slide block 320 is a semi-circular groove. The matching means that the transverse guide rod 113, longitudinal guide rod 114, and steering guide rod 116 can be embedded in the sliding groove 330 and can move along the transverse guide rod 113, longitudinal guide rod 114, and steering guide rod 116.

[0042] When the docking translation bed 300 does not need to move but needs to be fixed on the top of the traveling lifting mechanism 100, the steering guide rod 116 is embedded in the sliding groove 330, and the slide block 320 is set on the steering guide rod 116.

[0043] When the docking translation bed 300 needs to dock with the MRI examination bed, but the side space of the MRI examination bed is insufficient, if the side of the MRI examination bed has enough space to accommodate the MRI machine auxiliary device of this application, the MRI machine auxiliary device of this application is moved together with the patient to the side of the MRI examination bed. Then, the height of the examination bed is adapted by adjusting the walking lifting mechanism 100. Rotate each universal seat 115 until the steering guide rod 116 and the transverse guide rod 113 are on the same straight line. The slide 320 rotates along with it under the action of the rotary seat 310. Then, release the limiting locking device 400, and then push the docking translation bed 300 laterally. The slide 320 moves from the steering guide rod 116 to the transverse guide rod 113. Continue to push the docking translation bed 300 until the patient and the docking translation bed 300 are completely moved onto the examination bed.

[0044] When the docking translation bed 300 needs to dock with the MRI examination bed, but there is insufficient space at the rear of the MRI examination bed, if there is enough space at the rear of the MRI examination bed to accommodate the MRI machine auxiliary device of this application, the MRI machine auxiliary device of this application is moved together with the patient to the rear of the MRI examination bed. Then, the height of the examination bed is adapted by adjusting the walking lifting mechanism 100. Rotate each universal seat 115 until the steering guide rod 116 and the longitudinal guide rod 114 are on the same straight line. The slide 320 rotates along with it under the action of the swivel seat 310. Then, release the limiting locking device 400, and then push the docking translation bed 300 longitudinally. The slide 320 moves from the steering guide rod 116 to the longitudinal guide rod 114. Continue to push the docking translation bed 300 until the patient and the docking translation bed 300 are completely moved onto the examination bed.

[0045] The limiting locking device 400 includes an operating lever 410 and a stud 420 disposed on the operating lever 410. Threaded grooves adapted to the stud 420 are formed on the steering guide rod 116 and the slide 320. Adaptation means that the stud 420 can be rotatably screwed into the threaded grooves on the steering guide rod 116 and the slide 320. When the stud 420 passes through the slide 320 and is tightened with the steering guide rod 116, the steering guide rod 116 and the slide 320 cannot move relative to each other, thereby achieving locking between the docking translation bed 300 and the traveling lifting mechanism 100. When the stud 420 is rotated in the opposite direction, causing it to disengage from the steering guide rod 116, the slide 320 can move along the steering guide rod 116 and can move to the transverse guide rod 113 or the longitudinal guide rod 114 as needed.

[0046] The docking and translation bed 300 can be used as a stretcher independently, allowing for rapid manual transfer of patients in emergencies. Simply unlock the limiting locking device 400 to detach the docking and translation bed 300 from the walking and lifting mechanism 100. This simple operation greatly shortens the emergency response time and avoids secondary injuries or delays in rescue that may be caused to the patient during emergency transfers.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An auxiliary instrument device for an nuclear magnetic resonance (NMR) machine, characterized in that, include: The system includes a traveling lifting mechanism, a metal detection mechanism, and a docking translation bed. The docking translation bed is located on top of the traveling lifting mechanism, and the metal detection mechanism is located below the docking translation bed. The top of the traveling lifting mechanism is provided with a transverse guide rod and a longitudinal guide rod, and a universal joint is provided between the transverse guide rod and the longitudinal guide rod. A steering guide rod is provided on the universal joint. The bottom of the docking translation bed is provided with a rotary seat, and a slide is provided on the rotary seat. The slide has sliding grooves that are adapted to the transverse guide rod, the longitudinal guide rod, and the steering guide rod.

2. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 1, characterized in that, The walking and lifting mechanism includes: a top side lifting part and a bottom side fixing part; the top side lifting part includes: a support platform; There are two transverse guide rods, which are parallel to each other and are arranged at the top of the front and rear ends of the support platform along the transverse direction. There are two longitudinal guide rods, which are parallel to each other and are arranged at the top of the left and right ends of the support platform along the longitudinal direction.

3. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 2, characterized in that, The transverse guide rod, the longitudinal guide rod, and the steering guide rod are cylindrical rods with the same diameter. The sliding groove on the lower surface of the slide block is a semi-circular groove, so that the transverse guide rod, the longitudinal guide rod, and the steering guide rod can be embedded into the sliding groove.

4. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 3, characterized in that, The bottom fixing part is a cuboid frame assembled from several rods. The vertical rods of the cuboid frame are hollow tubes, and a lifting drive is installed inside the hollow tubes. The top-side lifting unit further includes a support rod disposed on the lower surface of the support platform, the support rod extending into the hollow tube and connected to the actuating end of the lifting driver.

5. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 4, characterized in that, The lifting drive is a hydraulic cylinder, a pneumatic cylinder, or a worm gear transmission mechanism.

6. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 5, characterized in that, The metal detection mechanism includes a metal detector and sliding sleeves disposed at both ends of the metal detector; the two sliding sleeves are respectively sleeved on two longitudinal members on the top side of the cuboid frame, so that the metal detector can move along the longitudinal direction of the cuboid frame.

7. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 6, characterized in that, Also includes: A limiting locking device, the limiting locking device comprising: an operating rod and a stud disposed on the operating rod; The steering guide rod and the slide block have threaded grooves that are compatible with the stud.

8. The nuclear magnetic resonance imaging (NMR) auxiliary device according to claim 7, characterized in that, The bottom of the bottom fixing part is equipped with a walking wheel.

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