A collapsible trolley for magnetic resonance device coupling measurements

Abstract

This utility model relates to a magnetic resonance imaging (MRI) device, specifically a foldable trolley for coupling measurements of the MRI device. The trolley includes a folding frame, a contact measuring device, a movable chassis, and a hook device. The folding frame is connected to the movable chassis. The folding frame includes a telescopic unit and a connecting frame connected to the telescopic unit. The telescopic unit is used to measure the track height of the MRI device. The contact measuring device is slidably mounted in the middle of the folding frame via the connecting frame. The contact measuring device is used to measure the contact position and depth of the MRI device. The hook device is slidably mounted in the lower part of the folding frame via the connecting frame. The hook device is used to measure the hook connection position of the MRI device. Compared with the prior art, the foldable trolley for coupling measurements of the MRI device designed in this utility model can measure the track height, hook connection position, contact position, and depth of the MRI device. Furthermore, the foldable trolley is foldable and easy to carry.

Description

Technical Field

[0001] This utility model relates to a magnetic resonance device, specifically a foldable trolley for coupling measurements in a magnetic resonance device. Background Technology

[0002] In modern medical research and practice, magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) technology has gradually become a focus of attention. This technology cleverly combines the advantages of magnetic resonance imaging (MRI) and high-intensity focused ultrasound (HIFU) technology, providing patients with a non-invasive, environmentally friendly (no ionizing radiation), and reusable treatment option. As more and more clinicians begin to recognize the enormous potential of MRgHIFU technology in the treatment process, its application in the medical field is constantly expanding. Especially in the treatment of tumors, MRgHIFU technology has shown broad application prospects and is regarded as an innovative and effective treatment method.

[0003] Currently, the development of MRI-guided high-intensity focused ultrasound (HIFU) equipment requires coupling measurements to adapt to different MRI devices. Furthermore, MRI-guided HIFU experiments often necessitate the use of a lifting bed, which is bulky and heavy, making it unsuitable for transport to other locations. Therefore, a device is needed that is highly compatible with MRI equipment, capable of measuring coupling parameters, simulating bed movement in and out of the MRI chamber, and is easy to install and carry.

[0004] For the trolley used for coupling measurements in a magnetic resonance imaging (MRI) device, the following conditions must be met:

[0005] First, the trolley used for coupling measurements with magnetic resonance equipment needs to be compatible with different models of magnetic resonance equipment and be able to trigger connections for different models of magnetic resonance equipment.

[0006] Secondly, the trolley used for coupling measurements of magnetic resonance equipment can measure the coupling connection parameters of the magnetic resonance equipment.

[0007] Therefore, this patent designs a folding trolley for coupling measurements of magnetic resonance equipment, addressing various tests and environment setups in MRgHIFU experiments and coupling measurements of magnetic resonance devices. Utility Model Content

[0008] The purpose of this invention is to provide a foldable trolley for coupling measurements of magnetic resonance imaging (MRI) devices, addressing at least one of the aforementioned problems, and solving the problem of the lack of a portable test trolley adaptable to coupling tests of different MRI devices in the prior art. The foldable trolley designed in this solution for coupling measurements of MRI devices can measure the track height, hook connection position, contact point position, and depth of the MRI device. Furthermore, the foldable trolley is easy to carry.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] A foldable trolley for coupling measurements of magnetic resonance imaging equipment includes a folding frame, a contact measuring device, a mobile chassis, and a hook device.

[0011] The folding frame is connected to the mobile chassis; the folding frame includes a telescopic unit and a connecting frame connected to the telescopic unit, the telescopic unit being used to measure the track height of the magnetic resonance equipment;

[0012] The contact measuring device is slidably mounted in the middle of the folding frame via a connecting bracket; the contact measuring device is used to measure the contact position and depth of the magnetic resonance device;

[0013] The hook device is slidably mounted on the lower part of the folding frame via a connecting bracket; the hook device is used to measure the hook connection position of the magnetic resonance equipment.

[0014] Preferably, the contact measuring device includes a slide rail, a slider, an adjustment knob, and a positioning knob;

[0015] The slider is slidably assembled with the slide rail, and the adjustment knob and the positioning knob are respectively connected to the slider;

[0016] The adjustment knob is used to adjust the position of the slider on the slide rail;

[0017] The positioning knob is used to lock the position of the slider on the slide rail.

[0018] The position of the slider on the slide rail can be adjusted by adjusting the knob to move the contact measuring device on the folding frame; the position of the slider on the slide rail can be locked by adjusting the positioning knob to locate and record the contact position and depth of different types of magnetic resonance equipment.

[0019] Preferably, the mobile chassis includes a chassis, rollers, and brake pads;

[0020] The rollers are provided in a number, and each roller is independently connected to the chassis via a roller shaft;

[0021] At least one of the rollers is provided with a brake pad.

[0022] The movable chassis facilitates the movement of the foldable trolley, while the brake pads further facilitate stopping the foldable trolley.

[0023] Preferably, the foldable trolley further includes a movable trolley, which is slidably mounted on the top of the folding frame via a connecting frame, and the connecting frame connecting the movable trolley is rotatably connected to the top of the telescopic unit; the movable trolley is used to simulate the coupling connection of the bed to the magnetic resonance imaging device and the entry into the magnetic resonance imaging device;

[0024] The mobile trolley includes a floor plate, side casters, bottom casters, and spring hooks;

[0025] The side pulleys are provided in several units, and each side pulley is independently and horizontally mounted on the side of the vehicle floor.

[0026] The bottom wheel is provided in several parts, and each bottom wheel is independently and vertically mounted on the bottom surface of the vehicle floor.

[0027] The front end face of the vehicle floor is provided with a notch, and the spring hook is retractably provided at the opening of the notch.

[0028] The movable trolley can slide further into the interior of the magnetic resonance device, thereby simulating the bed coupling connection and entry into the magnetic resonance device.

[0029] Preferably, the mobile trolley further includes a buffer pad, which is disposed on the front end surface of the trolley floor. The buffer pad provides collision protection for the mobile trolley and the magnetic resonance imaging equipment, preventing damage from mutual impact.

[0030] Preferably, the foldable trolley further includes a suction cup device;

[0031] The suction cup device is mounted on the connecting frame that connects to the moving trolley.

[0032] The suction cup device can further attach the moving trolley to the magnetic resonance equipment to prevent slippage during the measurement process.

[0033] Preferably, the foldable trolley further includes a sliding base plate;

[0034] The chute bottom plate is assembled on the connecting frame at the top of the folding frame, and the mobile trolley is slidably disposed inside the chute bottom plate.

[0035] The chute base plate, in conjunction with the sliding of the mobile trolley, provides a stable and sliding platform for the mobile trolley.

[0036] Preferably, the hook device includes a sliding support, a hook, and a spring;

[0037] The sliding support is slidably connected to the folding frame;

[0038] The hook is hinged to the sliding support;

[0039] The spring is connected between the folding frame and the hook.

[0040] The hook device can be adjusted in height on the folding frame according to the connecting frame. At the same time, the hook itself has a certain rotation angle and can be pulled back by a spring, which can be quickly adjusted to accommodate different models of magnetic resonance equipment.

[0041] Preferably, the folding frame further includes a support frame;

[0042] The telescopic units are arranged in a pair in parallel;

[0043] The aforementioned connecting frame is provided with several pieces, each of which is independently and slidably connected between the telescopic units;

[0044] The connecting frame is locked onto the telescopic unit by a locking knob, and the telescopic unit is locked in the telescopic state by a locking knob;

[0045] The support frame is mounted on the connecting frame via a rotating platform, the rotating platform is rotatably connected to the connecting frame, and the support frame is detachably mounted on the rotating platform; the hook device is slidably connected to the support frame.

[0046] The telescopic unit is rotatably connected to the mobile chassis.

[0047] The adjustable structure of the telescopic unit provides a basis and convenience for measuring the height of different models of magnetic resonance imaging equipment.

[0048] Preferably, the mobile chassis also has a groove for limiting the support frame. The groove is designed so that the limiting support frame can be inserted into the groove after rotating to the target state, thereby restricting its movement during use.

[0049] The working principle of this utility model is as follows:

[0050] The track height of different models of magnetic resonance imaging equipment can be measured by the telescopic movement of the telescopic unit.

[0051] By sliding the contact measuring device on the folding frame, the contact position and depth of different models of magnetic resonance imaging equipment can be measured.

[0052] By sliding the hook device on the folding frame, the hook connection position of different models of magnetic resonance imaging equipment can be measured.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] This design utilizes a folding trolley for coupling measurements with magnetic resonance imaging (MRI) equipment. The folding frame allows for measurement of the MRI equipment's track height; the hook connection position is measured via a hook device; and the contact position and depth are measured using a contact measuring device. Furthermore, a movable chassis and trolley simulate a bed for coupling and accessing the MRI equipment. The folding trolley is foldable for easy carrying and movement; its measurement structures are also adjustable to adapt well to different MRI devices. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the structure of the foldable trolley of this utility model when unfolded;

[0056] Figure 2 This is a schematic diagram of the folding frame in the foldable trolley of this utility model;

[0057] Figure 3 This is a schematic diagram of the contact measuring device in the foldable trolley of this utility model;

[0058] Figure 4 This is a schematic diagram of the mobile chassis in the foldable trolley of this utility model;

[0059] Figure 5 This is a schematic diagram of the suction cup device in the foldable trolley of this utility model;

[0060] Figure 6 This is a schematic diagram of the foldable trolley's sliding bottom plate according to the present invention.

[0061] Figure 7 This is a schematic diagram of the movable trolley in the foldable trolley of this utility model;

[0062] Figure 8 This is a schematic diagram of the hook device in the foldable trolley of this utility model;

[0063] Figure 9 This is a schematic diagram of the foldable trolley of this utility model when folded.

[0064] In the diagram: 100 - Folding frame; 200 - Contact measuring device; 300 - Mobile chassis; 400 - Suction cup device; 500 - Slide base plate; 600 - Mobile trolley; 700 - Hook device;

[0065] 101-Left first square tube; 102-Right first square tube; 103-Left second square tube; 104-Right second square tube; 105-Left third square tube; 106-Right third square tube; 107-First connecting frame; 108-Second connecting frame; 109-Third connecting frame; 110-Fourth connecting frame; 111-Fifth connecting frame; 112-Locking knob; 113-Rotating platform; 114-Support frame; 115-Connecting knob; 116-Left rotating support; 117-Right rotating support; 118-Hinge;

[0066] 201-Slide rail; 202-Slider; 203-Adjustment knob; 204-Positioning knob;

[0067] 301 - Chassis; 302 - Left first roller shaft; 303 - Roller; 304 - Brake pad; 305 - Groove; 306 - Right first roller shaft; 307 - Right second roller shaft; 308 - Left second roller shaft;

[0068] 401 - Platform setup; 402 - Suction cup;

[0069] 501 - Base plate; 502 - Cylinder; 503 - Groove;

[0070] 601 - Vehicle floor; 602 - Vehicle roof; 603 - Side roller; 604 - Bottom roller; 605 - Left buffer pad; 606 - Right buffer pad; 607 - Left spring hook; 608 - Right spring hook;

[0071] 701-Sliding support; 702-Hook; 703-Spring. Detailed Implementation

[0072] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0073] Example

[0074] A foldable trolley for coupling measurements in magnetic resonance imaging (MRI) devices, such as Figure 1-9 As shown, it includes a folding frame 100, a contact measuring device 200, a movable chassis 300, and a hook device 700;

[0075] The folding frame 100 is connected to the mobile chassis 300; the folding frame 100 includes a telescopic unit and a connecting frame connected to the telescopic unit, the telescopic unit being used to measure the track height of the magnetic resonance device;

[0076] The contact measuring device 200 is slidably mounted on the middle of the folding frame 100 via a connecting frame; the contact measuring device 200 is used to measure the contact position and depth of the magnetic resonance device;

[0077] The hook device 700 is slidably mounted on the lower part of the folding frame 100 via a connecting frame; the hook device 700 is used to measure the connection position of the hook 702 of the magnetic resonance device.

[0078] This foldable trolley, in addition to the folding frame 100, contact measuring device 200, movable chassis 300, and hook device 700 that constitute the main body, also includes a sliding base plate 500, a movable trolley 600, and a suction cup device 400. For example... Figure 1 As shown, the foldable trolley has an approximate Z-shaped structure when in use, consisting of a vertically arranged folding frame 100 connected at both ends to a horizontally arranged movable chassis 300 and a sliding base plate 500. Several connecting frames are slidably arranged on the folding frame 100, which are used to connect the hook device 700, the contact measuring device 200, and the folding frame 100 from bottom to top. The folding frame 100 is further equipped with a movable trolley 600 and a suction cup device 400.

[0079] Folding frame 100, such as Figure 2 As shown, the device includes a telescopic unit and a connecting frame, specifically including a left first square tube 101, a right first square tube 102, a left second square tube 103, a right second square tube 104, a left third third square tube 105, a right third third square tube 106, a first connecting frame 107, a second connecting frame 108, a third connecting frame 109, a fourth connecting frame 110, a fifth connecting frame 111, a locking knob 112, a rotating platform 113, a support frame 114, a connecting knob 115, a left rotating support 116, a right rotating support 117, and a hinge 118.

[0080] The left first square tube 101 and the left second square tube 103, as well as the right first square tube 102 and the right second square tube 104, constitute a telescopic unit arranged on the left and right sides and parallel to each other. The left second square tube 103 is fitted inside the left first square tube 101, and the right second square tube 104 is fitted inside the right first square tube 102. A third connecting frame 109 is erected between the two to control the adjustment and locking of the telescopic state.

[0081] At the lower part of the telescopic unit and on the lower side of the third connecting frame 109, there are a first connecting frame 107 for setting the contact measuring device 200, a second connecting frame 108 for connecting the hook device 700 and setting the contact measuring device 200, and at the top of the telescopic unit and on the upper side of the third connecting frame 109, there are a fourth connecting frame 110 for connecting the slide bottom plate 500, a left third third tube 105, a right third third tube 106 and a fifth connecting frame 111. The first connecting frame 107 and the second connecting frame 108 have elongated grooves on the side facing away from the movable chassis 300, and the contact measuring device 200 is installed inside the grooves. A rotating platform 113 (a semi-circular plate or an arc plate) is hinged to the second connecting frame 108. The rotating platform 113 is located on the same side of the movable chassis 300. Furthermore, a support frame 114 (which can be made of aluminum profile) is threaded onto the far end of the rotating platform 113 through a connecting knob 115, and a hook device 700 is slidably mounted on the support frame 114. The two ends of the fourth connecting frame 110 and the fifth connecting frame 111 are fixedly connected to the left third tube 105 and the right third tube 106, respectively. The left third tube 105 and the right third tube 106 are connected to the top ends of the left second square tube 103 and the right second square tube 104, respectively, through hinges 118, forming a rectangular load-bearing frame that connects to the sliding groove bottom plate 500 and can be rotated and folded.

[0082] In addition, locking knobs 112 are threadedly fitted at one or both ends of the first connecting frame 107, the second connecting frame 108, the third connecting frame 109 and the fourth connecting frame 110, for loosening or locking the connecting frames, so as to achieve adjustment and locking of these connecting frames on the folding frame 100.

[0083] The left first square tube 101 and the right first square tube 102 are respectively fixedly provided with a left rotating support 116 and a right rotating support 117 at their bottom ends, and the chassis 300 is hinged to the left rotating support 116 and the right rotating support 117.

[0084] Thus, in the folding frame 100: the first connecting frame 107 and the second connecting frame 108 can rotate around the left rotating support 116 and the right rotating support 117; the first connecting frame 107 and the second connecting frame 108 can slide along the left first square tube 101 and the right first square tube 102; the semicircular plate can rotate and fold around the second connecting frame 108; the left second square tube 103 / right second square tube 104 can be adjusted in its telescopic state within the left first square tube 101 / right first square tube 102 and can be locked through the third connecting frame 109; the left third third tube 105 / right third third tube 106 can rotate and fold around the hinge 118 to drive the slide base plate 500 and the moving trolley 600 to rotate and fold; the support frame 114 and the hook device 700 are detachable structures, realizing the adjustability and foldability of the folding frame 100, so as to facilitate the measurement and transportation of different models of magnetic resonance equipment.

[0085] like Figure 3 As shown, a first connecting frame 107 equipped with a contact measuring device 200 is shown. The two ends of the first connecting frame 107 are respectively provided with square through holes that mate with the left first square tube 101 and the right first square tube 102, and each end face is provided with a locking knob 112. A long strip-shaped groove is formed on the side of the first connecting frame 107, inside which the contact measuring device 200 is assembled, specifically including a slide rail 201, a slider 202, an adjustment knob 203, and a positioning knob 204. The slide rail 201 (made of aluminum profile) is arranged along the length of the first connecting frame 107, and the slider 202 is slidably fitted onto the slide rail 201, with the slider 202 located on the opening side of the long strip-shaped groove. A positioning knob 204 and an adjustment knob 203 are threaded onto the slider 202, respectively used to lock the slider 202 in position on the slide rail 201. The contact measuring device 200 can adjust and lock the position of the slider 202 by using the positioning knob 204 and the adjustment knob 203, thereby enabling the measurement of the contact position and depth of different types of magnetic resonance equipment.

[0086] like Figure 4 The diagram shows the specific structure of the mobile chassis 300, which includes a chassis 301, a left first roller shaft 302, rollers 303, brake pads 304, a groove 305, a right first roller shaft 306, a left second roller shaft 308, and a right second roller shaft 307. The mobile chassis 300 has a four-wheel structure. The four rollers 303 are connected to the four corners of the chassis 301 via their respective left first roller shaft 302, right first roller shaft 306, left second roller shaft 308, and right second roller shaft 307. Furthermore, a brake pad 304 is installed on each roller 303, which can lock the roller 303. The chassis 301 has a U-shaped notch on one side of the left rotation support 116 and right rotation support 117 connecting the folding frame 100, so as to avoid the structure of different models of magnetic resonance equipment during use and minimize structural conflicts that prevent compatibility. In addition, a groove 305 is provided on the chassis 301 near the top of the notch, which is used to limit the support frame 114 of the folding frame 100 to prevent the support frame 114 from shaking during use.

[0087] like Figure 5As shown, the suction cup device 400 includes a platform 401 and suction cups 402. The platform 401 is connected to the far end of the fifth connecting frame 111 and protrudes from the fifth connecting frame 111. There are a pair of platforms 401 arranged symmetrically along an axis. Each platform 401 has four suction cups 402 positioned at the four corners of a rectangle on its lower surface, for a total of eight suction cups 402. These provide support and horizontal friction for the foldable trolley, making it more stable and reliable when used with the magnetic resonance imaging (MRI) device. In other embodiments, the suction cups 402 may also be distributed on the lower surfaces of the fifth connecting frame 111 and the platforms 401 to form a rectangular arrangement at the four corners. The suction cup device 400 ensures that the rectangular support frame formed in the folding frame 100 can reliably adhere to the appropriate position of the MRI device during use, thereby reducing shaking and movement during use and thus lowering measurement errors.

[0088] like Figure 6 As shown, the slide base plate 500 includes a base plate 501, cylinders 502 disposed on the lower surface of the base plate 501, and a slot 503 located at the front end of the base plate 501. The base plate 501 is assembled and fixed by connecting posts pre-set on the left and right third-party tubes 105 and 106 via shaft holes through the cylinders 502 (four in total, arranged at the four corners of a rectangle) designed on its bottom surface. C-shaped slide rails perpendicular to the base plate 501 can be further connected to the sides of the base plate 501 to facilitate the sliding of the moving trolley 600. After the base plate 501 is assembled onto the left and right third-party tubes 105 and 106, the side furthest from the left and right second-party tubes 103 and 104 is the front end, with a rectangular slot 503 formed in its center. The slide base plate 500 provides a reliable platform for the moving trolley 600.

[0089] like Figure 7As shown, the movable trolley 600 includes a floor plate 501, a roof plate 602, side rollers 603, bottom rollers 604, a left buffer pad 605, a right buffer pad 606, a left spring hook 607, and a right spring hook 608. The movable trolley 600 is slidably mounted on the slide base plate 500. The shape and size of the floor plate 501 and the bottom plate 501 of the slide base plate 500 are matched. The roof plate 602 and the floor plate 501 together form a closed space, and the side rollers 603 and bottom rollers 604 are both mounted inside this closed space. The bottom wheel 604 contacts and engages with the bottom plate 501 of the slide rail base plate 500, and there are two pairs, four in total (located on both sides); the side pulley 603 contacts and engages with the C-shaped slide rail, and there are two pairs, four in total (located at the four corners); thus, the sliding of the movable trolley 600 is realized by the sliding of the bottom wheel 604 and the side pulley 603 on the slide rail base plate 500, and due to the joint sliding of the bottom wheel 604 and the side pulley 603, the movable trolley 600 can slide stably and with guidance.

[0090] Furthermore, a notch is provided on the front end face of the movable trolley 600 at the groove 305 corresponding to the bottom plate 500 of the slide rail, to accommodate the structure of different types of magnetic resonance imaging (MRI) devices. At the opening of this notch, a left spring hook 607 and a right spring hook 608 extend from the closed space of the movable trolley 600 and are positioned opposite each other to close the notch when no structure is inserted. The spring hook is specifically composed of an inner spring located inside the closed space, a baffle extending from the notch, and a connecting plate connecting the inner spring and the baffle. When no external force is applied, the elastic force of the inner spring causes the baffle to block the opening of the notch. The free end and outer surface of the baffle are designed as bevels, so that when an external structure wants to insert into the notch, the force generated by the contact will push the inner spring to contract, opening the spring hook and allowing it to insert into the notch.

[0091] Furthermore, a left buffer pad 605 and a right buffer pad 606 are respectively installed on the front end face of the movable trolley 600 and on both sides of the recess to prevent the movable trolley 600 from directly colliding with the magnetic resonance equipment during sliding and causing damage. The left buffer pad 605 and the right buffer pad 606 can be arranged symmetrically.

[0092] By moving the trolley 600 on the slide plate 500, the process of bed coupling to and entering the magnetic resonance equipment can be simulated.

[0093] like Figure 8As shown, the hook device 700 consists of a sliding support 701, a hook 702, and a spring 703. The sliding support 701 is sleeved on the support frame 114 and can slide along the support frame 114. A pair of lugs are provided on one side wall of the sliding support 701, and the hook 702 is hinged to the end of the lugs. The other three sides of the sliding support 701 are provided with locking holes, and the hook device 700 can be locked on the support frame 114 by means of a locking knob 112. A spring 703 is also connected between the sliding support 701 and the hook 702. The spring 703 allows the hook 702 to automatically return to its original position. At the same time, the tightness of the hook 702 connection can be adjusted by adjusting the relative position between the spring 703 and the sliding support 701.

[0094] When using the foldable trolley: First, rotate the left first square tube 101 and right first square tube 102 to be perpendicular to the movable chassis 300, and adjust the third connecting frame 109, left second square tube 103, and right second square tube 104 to a suitable position so that the folding frame 100 is adjusted to a suitable height with the magnetic resonance equipment. Then, lock the third connecting frame 109, left second square tube 103, and right second square tube 104 with the locking knob 112. Next, adjust the second connecting frame 108 and the first connecting frame 107 to a suitable position and lock them with the locking knob 112. Then, flip the rotating platform 113 backward and install the support frame 114 and hook device 700 (the support frame 114 can be inserted into the groove 305 of the movable chassis 300) under the rotating platform 113 with the connecting knob 115. Then, adjust the height of the hook device 700 and the position of the slider 202 in the contact measuring device 200 to correspond to the contacts and hook 702 of the magnetic resonance equipment. The left third tube 105 and right third tube 106 are then flipped up until they are perpendicular to the left second tube 103 and right second tube 104, and locked using the fourth connecting bracket 110 and locking knob 112. The slide base plate 500 is then assembled onto the left third tube 105 and right third tube 106 via the cylinder 502. The movable trolley 600 is slidably located within the slide base plate 500, completing the basic deformation and assembly. The foldable trolley is pushed close to the magnetic resonance equipment, and the rollers 303 are locked using the brake pads 304. The height of the folding frame 100, the position of the contact measuring device 200, and the position of the hook device 700 are further adjusted to obtain the track height, hook 702 connection position, contact position, and depth of the magnetic resonance equipment. At this time, the suction cup device 400 attracts the magnetic resonance equipment to further improve the stability of the foldable trolley during measurement. The movable trolley 600 is then pushed into the magnetic resonance equipment to simulate the bed coupling connection and entry process.

[0095] After use, disconnect all connections between the foldable trolley and the MRI machine, return the mobile trolley 600, and then push the foldable trolley away from the MRI machine. Remove the slide bottom plate 500, hook device 700, and support frame 114 in sequence. Then, unlock each locking knob 112 as needed to release the rotating platform 113, first connecting frame 107, second connecting frame 108, third connecting frame 109, fourth connecting frame 110, left second square tube 103, right second square tube 104, left third third tube 105, and right third third tube 106. Then, fold the left third third tube 105 and right third third tube 106 and the rotating platform 113 in sequence. Store the left second square tube 103 and right second square tube 104 inside the left first square tube 101 and right first square tube 102. Align the first connecting frame 107, second connecting frame 108, and third connecting frame 109. Finally, fold the left first square tube 101 and right first square tube 102 to complete the folding of the foldable trolley. Figure 9 As shown, it is easy to carry.

[0096] In summary, this solution designs a folding cart for magnetic resonance coupling measurements, addressing various tests and environment setups in MRgHIFU experiments, as well as coupling measurements using magnetic resonance equipment.

[0097] First, the folding cart used for magnetic resonance coupling measurements must ensure magnetic resonance compatibility. Its materials, structure, and movement must be unaffected by magnetic fields to meet the requirements for normal operation in a magnetic resonance environment. For example, it can be manufactured using non-magnetic materials such as alumina, silicone, copper, and polyoxymethylene to reduce the influence of magnetic fields. Even better, using lightweight materials further reduces the overall weight of the folding cart, making it more convenient to move and use.

[0098] Secondly, the folding trolley used for magnetic resonance coupling measurement needs to be compatible with different models of magnetic resonance equipment and be able to make trigger connections.

[0099] In addition, the folding trolley used for magnetic resonance coupling measurements needs to be able to measure the coupling connection parameters of the magnetic resonance device.

[0100] In addition, the folding trolley used for magnetic resonance coupling measurements needs to be able to simulate the bed moving in and out of the magnetic resonance chamber.

[0101] Finally, the folding trolley used for magnetic resonance coupling measurements needs to be easy to install and carry.

[0102] Based on this, this solution designs a non-magnetic foldable trolley for magnetic resonance coupling measurement. It can measure the track height of the magnetic resonance equipment, the connection position of the magnetic resonance hook 702, the contact position and depth of the magnetic resonance equipment, simulate bed coupling connection to the magnetic resonance equipment and entry into the magnetic resonance equipment. It is lightweight, foldable, and easy to carry.

[0103] In summary, this solution designs a foldable trolley for magnetic resonance coupling measurements, which is of great significance for the testing and development of MRgHIFU technology. By solving the aforementioned technical challenges, it can achieve compatibility with different types of magnetic resonance equipment, provide a mobile testing environment for the bed, enable magnetic resonance equipment coupling measurements, and facilitate transport to other locations for magnetic resonance equipment measurements and experiments.

[0104] In summary, this solution aims to design a foldable trolley for magnetic resonance coupling measurements to address various testing requirements, test environment setup, and magnetic resonance equipment measurements during the development and testing of magnetic resonance-guided HIFU technology.

[0105] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A foldable cart for magnetic resonance device coupling measurements, characterized by, It includes a folding frame (100), a contact measuring device (200), a mobile chassis (300), and a hook device (700); The folding frame (100) is connected to the mobile chassis (300); the folding frame (100) includes a telescopic unit and a connecting frame connected to the telescopic unit, the telescopic unit being used to measure the track height of the magnetic resonance device; The contact measuring device (200) is slidably mounted on the middle of the folding frame (100) via a connecting frame; the contact measuring device (200) is used to measure the contact position and depth of the magnetic resonance device; The hook device (700) is slidably mounted on the lower part of the folding frame (100) via a connecting frame; the hook device (700) is used to measure the hook connection position of the magnetic resonance equipment.

2. The foldable cart for magnetic resonance device coupling measurement according to claim 1, characterized in that, The contact measuring device (200) includes a slide rail (201), a slider (202), an adjustment knob (203), and a positioning knob (204); The slider (202) is slidably assembled with the slide rail (201), and the adjustment knob (203) and positioning knob (204) are respectively connected to the slider (202); The adjustment knob (203) is used to adjust the position of the slider (202) on the slide rail (201); The positioning knob (204) is used to lock the position of the slider (202) on the slide rail (201).

3. The foldable cart for magnetic resonance device coupling measurement of claim 1, wherein, The mobile chassis (300) includes a chassis (301), rollers (303), and brake pads (304); The rollers (303) are provided in a plurality of them, and each roller (303) is independently connected to the chassis (301) through a roller shaft; At least one of the rollers (303) is provided with a brake pad (304).

4. The foldable cart for magnetic resonance device coupling measurement of claim 1, wherein, The foldable trolley also includes a movable trolley (600), which is slidably mounted on the top of the folding frame (100) via a connecting frame. The connecting frame connecting the movable trolley (600) is rotatably connected to the top of the telescopic unit. The movable trolley (600) is used to simulate the coupling connection of the bed to the magnetic resonance device and the entry into the magnetic resonance device. The mobile trolley (600) includes a floor plate (601), side pulleys (603), bottom wheels (604), and spring hooks; The side pulleys (603) are provided in a plurality of them, and each side pulley (603) is independently and horizontally mounted on the side of the vehicle floor plate (601); The bottom wheel (604) is provided in a plurality of units, and each bottom wheel (604) is independently and vertically mounted on the bottom surface of the vehicle floor plate (601); The front end face of the vehicle floor (601) is provided with a notch, and the spring hook is retractably provided at the opening of the notch.

5. The foldable cart for magnetic resonance device coupling measurement of claim 4, wherein, The movable trolley (600) also includes a buffer pad, which is disposed on the front end surface of the trolley floor plate (601).

6. The foldable cart for magnetic resonance device coupling measurement of claim 4, wherein, The foldable trolley also includes a suction cup device (400); The suction cup device (400) is mounted on the connecting frame that connects to the movable trolley (600).

7. The foldable cart for magnetic resonance device coupling measurement of claim 4, wherein, The foldable trolley also includes a sliding base plate (500); The chute bottom plate (500) is mounted on the connecting frame at the top of the folding frame (100), and the movable trolley (600) is slidably disposed inside the chute bottom plate (500).

8. The foldable cart for magnetic resonance device coupling measurement of claim 1, wherein, The hook device (700) includes a sliding support (701), a hook (702), and a spring (703); The sliding support (701) is slidably connected to the folding frame (100); The hook (702) is hinged to the sliding support (701); The spring (703) is connected between the folding frame (100) and the hook (702).

9. The foldable cart for magnetic resonance device coupling measurement of claim 1, wherein, The folding frame (100) also includes a support frame (114); The telescopic units are arranged in a pair in parallel; The aforementioned connecting frame is provided with several pieces, each of which is independently and slidably connected between the telescopic units; The connecting frame is locked to the telescopic unit by a locking knob (112), and the telescopic unit is locked in the telescopic state by the locking knob (112); The support frame (114) is mounted on the connecting frame via a rotating platform (113), the rotating platform (113) is rotatably connected to the connecting frame, and the support frame (114) is detachably mounted on the rotating platform (113); the hook device (700) is slidably connected to the support frame (114). The telescopic unit is rotatably connected to the mobile chassis (300).

10. The foldable cart for magnetic resonance device coupling measurement of claim 9, wherein, The mobile chassis (300) is also provided with a groove (305) for limiting the support frame (114).

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