Autonomous respiration assisting device with locking assembly for nuclear magnetic resonance examination

Abstract

The invention discloses an autonomous respiration assisting device with a locking assembly for nuclear magnetic resonance examination, and relates to the technical field of nuclear magnetic resonance examines.The autonomous respiration assisting device comprises a bed board, a right fixing seat is fixedly connected to the right end face of the bed board, a right rotating block is rotationally installed at the lower end of the right fixing seat, and a binding belt is fixedly connected to the upper end of the right rotating block; an adjustable elastic assembly for adjusting the elastic force of the binding belt is arranged in the right fixing seat, and binding assemblies for tightening and fixing the binding belt are arranged on the left end face of the bed board and the left side of the binding belt. The adjustable elastic component is arranged, so that when a patient is bound and fixed by the binding belt, the binding belt can have certain elasticity to stretch, the stretching elasticity can be manually adjusted by rotating a knob, and the binding belt is locked on the two sides of the bound patient through buckling and pressing of a locking block; the binding belt can be well attached to the two sides of the body of a patient and is suitable for different body positions.

Description

Technical Field

[0001] This invention relates to the field of magnetic resonance imaging (MRI) examination technology, specifically to an MRI examination spontaneous breathing assist device with a locking component. Background Technology

[0002] Magnetic resonance imaging (MRI) is primarily used to examine lesions in the nervous system, musculoskeletal system, cardiovascular system, abdominal organs, and soft tissues. MRI technology offers advantages such as being radiation-free and having high resolution, making it suitable for diagnosing various diseases including stroke, herniated discs, joint injuries, and tumor screening.

[0003] MRI scanners typically have examination beds for patients to lie flat or on their side before entering the examination area. However, some patients may require assisted breathing during imaging, necessitating the use of a non-magnetic ventilator. While non-magnetic ventilators contain no magnetic metal and therefore do not interfere with the MRI equipment, significant patient movement can affect imaging results, causing ghosting or other issues. Therefore, it is necessary to restrain and secure patients who cannot control their movements. This reduces the impact of their activity on the test results and minimizes the strain on the ventilator, preventing the possibility of pulling on the breathing tube or loosening the mask. However, current restraint systems are simple, using straps connected to both sides of the bed for binding. The bed has a distinct angle on both sides, resulting in a relatively large space on either side. Therefore, although patients may feel a binding sensation during the examination, there is still room for movement on both sides. If the binding is too tight, the pressure on the body will be stronger and the discomfort will be more severe. If the binding is not tight, it will be easier to move. When using a ventilator, an oxygen tube and mask are required to deliver oxygen. However, the oxygen tube is usually two meters long. Therefore, the ventilator is usually placed at the end of the bed. During the MRI examination, the bed needs to be moved to move the patient into the examination area. During this process, if the oxygen tube is not long enough, it will be stretched. However, if it is too long, sufficient oxygen supply pressure will be required. Even if the oxygen tube is long enough, it may be straightened or bent during the movement of the bed. This process not only has the possibility of compressing the oxygen tube, but also cannot guarantee a stable oxygen supply. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the above-mentioned shortcomings of the prior art, the present invention provides an autonomous breathing assist device for MRI examination with a locking component, which can effectively solve the problems of the prior art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a self-breathing assist device for MRI examination with a locking component, comprising a bed board, a right fixation seat fixedly connected to the right end face of the bed board, a right-turning block rotatably mounted at the lower end of the right fixation seat, a restraint strap fixedly connected to the upper end of the right-turning block, an adjustable elastic component for adjusting the elasticity of the restraint strap inside the right fixation seat, a binding component for tightening and fixing the restraint strap on the left end face of the bed board and the left side of the restraint strap, a sliding groove opened on the upper surface of the bed board, a slider slidably mounted in the sliding groove, a locking block rotatably mounted at the upper end of the slider, and a groove for the restraint strap to pass through on the upper side of the locking block, locking components for vertical limiting and lateral locking of the locking block on the upper and lower sides of the front and rear ends of the locking block, a non-magnetic assisted ventilator for assisted breathing connected to the outer side of the bed board through a clamping component, and an oxygen tube provided on the restraint strap through a tube sleeve component.

[0006] Furthermore, the adjustable elastic component includes a guide groove longitudinally formed inside the upper side of the right fixed seat, and a movable guide block is slidably disposed in the guide groove. A guide screw is vertically rotatably installed in the guide groove, and the movable guide block is movably sleeved on the guide screw. The right end of the movable guide block is fixedly connected to the restraint strap through a connecting component.

[0007] Furthermore, the adjustable elastic component also includes a fixed guide block slidably disposed on the upper side of the guide groove, and a threaded sleeve is fixedly embedded in the middle position of the fixed guide block. The threaded sleeve is threaded onto the guide screw. A transmission gear is rotatably mounted laterally on the upper end of the right fixed seat. A transmission worm gear meshing with the transmission gear is fixedly connected to the upper end of the guide screw. A knob is fixedly connected to the outer end of the transmission gear.

[0008] Furthermore, two sets of nuts are symmetrically embedded on the right end of the movable guide block, and a guide rail is symmetrically longitudinally opened on the right end of the right fixed seat. A positioning screw is movably inserted in the guide rail, and positioning holes that match the positioning screws are equidistantly arranged on the surface of the binding strap. The positioning screw passes through the positioning hole sleeve and the guide rail and is fastened to the nut by a threaded connection.

[0009] Furthermore, the binding assembly includes a sponge pad sewn to the lower surface of the binding strap, and the sponge pad is located in the middle of the binding strap on the bed board. The upper left surface of the binding strap is sewn with a Velcro loop, and the surface of the left end of the binding strap is sewn with a Velcro hook that matches the Velcro loop. The left end of the bed board is fixedly connected to a left fixing seat, and a left turning block is rotatably installed inside the left fixing seat. The upper end of the left turning block is fixedly connected to a connecting strap, and the end of the connecting strap is fixedly connected to a collar. The inner diameter of the collar is larger than the cross-sectional size of the binding strap.

[0010] Furthermore, the left and right ends of the slide are through holes, and the opening corners of the slide are rounded. The longitudinal section of the slide and the slider is inverted T-shaped.

[0011] Furthermore, the slider is square with rounded corners, the width of the locking block matches the diameter of the upper opening of the groove, the locking block can only rotate 90 degrees on the slider, and the inner wall of the groove is rounded.

[0012] Furthermore, the locking assembly includes symmetrically arranged movable slots on both sides of the locking block. Movable seats are slidably arranged in both sets of movable slots, and an insert block is fixedly arranged on the upper side of the two sets of movable seats at their opposite ends. A limit block is fixedly arranged on the lower side of the two sets of movable seats at their opposite ends. Two sets of cylindrical slots are opened at both ends of the locking block, and the cylindrical slots are located on the upper and lower sides of the locking block. The cylindrical slots communicate with the movable slots. The insert block and the limit block are slidably inserted into the cylindrical slots. The insert block is located above the upper surface of the bed board. A sleeve block is fixedly arranged on the upper side of one of the opposite surfaces of the two sets of movable seats, and a return spring is inserted into the sleeve block. The return spring is laterally arranged on the upper side of the movable slot. Pressing end blocks are symmetrically arranged at the upper ends of the two sets of movable seats. Square slots communicating with the upper side of the movable slot are symmetrically opened on the upper side of the locking block, and the diameter of the square slots is adapted to the pressing end blocks.

[0013] Furthermore, the length of the limiting block is less than the length of the insert block, the outer end of the limiting block is hemispherical, and the inner walls of the front and rear sides of the slide groove are provided with limiting grooves that are adapted to the diameter of the limiting block, and the limiting block slides in the limiting grooves.

[0014] Furthermore, the insert is cylindrical, the diameter of the insert is adapted to the diameter of the limiting block, the outer end corners of the insert are rounded, and slots with inner diameters adapted to the insert are equidistantly opened on the inner walls of the front and rear sides of the slide.

[0015] Furthermore, the clamping assembly includes a support arm rotatably mounted on the front end face of the bed board. The front end face of the bed board has a groove adapted to the support arm, and the upper end face of the groove has a positioning groove. The lower end face of the groove has a pin hole opposite to the positioning groove. The upper end of the support arm has a limiting hole adapted to the positioning groove, and a positioning pin is vertically inserted through the limiting hole.

[0016] Furthermore, the clamping assembly also includes a support arm, the end of which is fixedly connected to a fixed clamping plate, and a movable clamping plate is symmetrically arranged on the rear side of the fixed clamping plate. An adjusting screw is threadedly inserted into the upper side of the fixed clamping plate, and the rear end of the adjusting screw is rotatably mounted on the movable clamping plate. Anti-slip pads are glued to the opposite surfaces of the fixed clamping plate and the movable clamping plate. A guide rod is fixedly connected to the end of the movable clamping plate near the fixed clamping plate, and the guide rod is movably inserted through the fixed clamping plate. A connecting seat is fixedly connected to the front end of the guide rod, and the connecting seat is rotatably mounted on the front end of the adjusting screw.

[0017] Furthermore, the sleeve assembly includes a positioning seat, which is movably fitted onto the restraint strap. A silicone tube sleeve is rotatably mounted on the upper end of the positioning seat. The oxygen tube passes through the silicone tube sleeve, and the inner diameter of the silicone tube sleeve is larger than the outer diameter of the oxygen tube. The opening edges on both sides of the silicone tube sleeve are arc-shaped, and the surface of the silicone tube sleeve is provided with waist-shaped holes at equal intervals.

[0018] (III) Beneficial Effects Compared with the known prior art, the technical solution provided by this invention has the following beneficial effects: This invention utilizes an adjustable elastic component, allowing the restraint strap to stretch elastically while maintaining stability during patient immobilization. The elasticity can be manually adjusted via a rotary knob, offering simple and convenient operation with fine-tuning and self-locking capabilities. The adjustment sensitivity is flexible and adaptable both pre-set and post-applied, accommodating various operational needs. Furthermore, the restraint strap is locked to both sides of the patient's body using locking blocks, ensuring a close fit and accommodating different body positions. This reduces gaps between the restraint strap and the patient's body after immobilization, guaranteeing stability after locking, minimizing movement, and preventing issues like ghosting during testing. It also reduces the risk of motion-induced movement. This device minimizes the impact of movement on the ventilator, preventing the possibility of pulling on the tubing, loosening the mask, or even moving the equipment. Furthermore, the binding and locking mechanisms are simple to operate; medical staff can easily open and unlock them with one hand, without any complicated procedures. It is suitable for various patients and medical personnel, offering strong applicability. The clamping component secures the non-magnetic ventilator used by the patient, allowing it to move with the bed board during testing. This prevents tubing pulling caused by relative displacement between the bed board and the ventilator, which could affect oxygen supply. The cannula component guides and limits the oxygen tubing, preventing tangling and routing, and preventing patient contact. The number of units can be increased according to usage needs, allowing for flexible assembly and facilitating the setup of ventilator support systems. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a front view schematic diagram of the structure at the bed board in this invention; Figure 2 This is a partial structural side view of the present invention; Figure 3 This is a schematic diagram of the structure of the right fixing seat and the restraint strap in this invention; Figure 4 This is a schematic cross-sectional view of the adjustable elastic component in this invention; Figure 5 This is a schematic cross-sectional view of the structure at the nut and guide rail in this invention; Figure 6 This is a schematic diagram of the structure at the binding component in this invention; Figure 7 This is a schematic diagram of the structure for binding and fixing the limbs in this invention; Figure 8 This is a schematic cross-sectional view of the structure at the groove and slider in this invention; Figure 9 This is a schematic diagram of the structure of the slider and locking block in this invention; Figure 10 This is a schematic cross-sectional view of the locking component in this invention; Figure 11 This is a schematic diagram of the locking component in the locked state in this invention; Figure 12 This is a schematic diagram showing the use of the non-magnetic assisted ventilator on the side of the bed board in this invention; Figure 13 This is a schematic diagram showing the use of the non-magnetic assisted ventilator in front of the bed board according to the present invention; Figure 14 This is a schematic diagram of the structure of the clamping component in this invention; Figure 15 This is a schematic diagram showing the usage state of the sleeve assembly in this invention; Figure 16 This is a side view of the sleeve assembly structure in this invention; Figure 17 This is a schematic cross-sectional view of the sleeve assembly in this invention.

[0021] The labels in the diagram represent: 1. Bed board; 2. Right fixed seat; 3. Right turn block; 4. Restraint strap; 5. Positioning hole sleeve; 6. Guide groove; 7. Movable guide block; 8. Guide screw; 9. Fixed guide block; 10. Screw sleeve; 11. Adjusting spring; 12. Transmission worm gear; 13. Transmission gear; 14. Knob; 15. Nut; 16. Guide rail; 17. Positioning screw; 18. Sponge pad; 19. Velcro surface; 20. Velcro hook surface; 21. Left fixed seat; 22. Left turn block; 23. Connecting strap; 24. Collar; 25. Slide groove; 26. Slider; 27. Locking block; 28. Movable slot; 29. ​​Movable seat; 30. Insert block; 31. Limiting block; 32. Cylindrical slot; 33. Sleeve block; 34. Return spring; 35. Pressing end block; 36. Square slot; 37. Slotted; 38. Limiting slot; 39. Slot; 40. Non-magnetic assisted ventilator; 41. Support arm; 42. Positioning slot; 43. Pin hole; 44. Limiting hole; 45. Positioning pin; 46. Fixing clamp; 47. Adjusting screw; 48. Movable clamp; 49. Anti-slip pad; 50. Guide rod; 51. Connecting seat; 52. Oxygen tubing; 53. Positioning seat; 54. Silicone tubing sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-17 This invention provides an embodiment of an MRI examination spontaneous breathing assist device with a locking component, comprising a bed board 1, a right fixation seat 2 fixedly connected to the right end face of the bed board 1, a right rotation block 3 rotatably mounted on the lower end of the right fixation seat 2, a restraint strap 4 fixedly connected to the upper end of the right rotation block 3, an adjustable elastic component for adjusting the elasticity of the restraint strap 4 provided inside the right fixation seat 2, and a binding component for tightening and fixing the restraint strap 4 provided on the left end face of the bed board 1 and the left side of the restraint strap 4. The upper surface of the board 1 is provided with a sliding groove 25, and a slider 26 is slidably arranged in the sliding groove 25. A locking block 27 is rotatably installed on the upper end of the slider 26, and a groove 37 for the restraint strap 4 to pass through is provided on the upper side of the locking block 27. Locking components for vertical limiting and horizontal locking of the locking block 27 are provided on the upper and lower sides of the front and rear ends of the locking block 27. A non-magnetic ventilator 40 for assisted breathing is connected to the outer side of the bed board 1 through a clamping assembly. An oxygen tube 52 is provided on the restraint strap 4 through a tube sleeve assembly.

[0024] As a preferred embodiment of this example, Figure 3 and Figure 4 As shown, the adjustable elastic component includes a guide groove 6 longitudinally opened inside the upper side of the right fixed seat 2, and a movable guide block 7 is slidably arranged in the guide groove 6. A guide screw 8 is vertically rotatably installed in the guide groove 6. The movable guide block 7 is movably sleeved on the guide screw 8. The right end of the movable guide block 7 is fixedly connected to the restraint strap 4 through a connecting component.

[0025] The guide groove 6 has a square cross-section, and the shapes of the movable guide block 7 and the fixed guide block 9 are adapted to the inner diameter of the guide groove 6. This structure is designed to maintain a certain elasticity after the restraint strap 4 is tied and fixed to the patient to be examined, so as to avoid causing discomfort to the patient due to excessive restraint. It can also accommodate the slight movements of the chest and abdomen caused by breathing. The upper right corner of the right fixation seat 2 is rounded to avoid friction between the restraint strap 4 and the sharp corner when it moves, which would cause unnecessary wear.

[0026] As a preferred embodiment of this example, Figure 4 and Figure 5 As shown, the adjustable elastic component also includes a fixed guide block 9 slidably disposed on the upper side of the guide groove 6, and a screw sleeve 10 is fixedly embedded in the middle position of the fixed guide block 9. The screw sleeve 10 is threaded onto the guide screw 8. A transmission gear 13 is rotatably mounted on the upper end of the right fixed seat 2. A transmission worm gear 12 that meshes with the transmission gear 13 is fixedly connected to the upper end of the guide screw 8. A knob 14 is fixedly connected to the outer end of the transmission gear 13.

[0027] This structure is used to adjust the preset elastic force of the adjusting spring 11, thereby changing its supporting force on the movable guide block 7 and also changing the buffering force when the restraint strap 4 is restrained. When the knob 14 is rotated, the transmission gear 13 drives the transmission worm gear 12 to rotate, and the transmission worm gear 12 drives the guide screw 8 to rotate, causing the screw sleeve 10 to drive the fixed guide block 9 to rise and fall in the guide groove 6 through the thread action. When it falls, it can apply pressure to the upper end of the adjusting spring 11, causing it to deform and contract. When the restraint strap 4 is pulled and the movable guide block 7 moves upward, the required force increases, so the locking force increases and the binding is tighter and more secure. However, the binding feeling is strong. When the fixed guide block 9 moves upward, it will reduce the limiting pressure on the upper side of the adjusting spring 11, thereby reducing the required force when the movable guide block 7 moves upward and squeezes the adjusting spring 11. That is, the buffering force is better, and the limbs can move more easily and easily when bound, with less binding feeling. Thus, it can be manually adjusted according to the actual situation of the patient to ensure the comfort when binding and locking.

[0028] As a preferred embodiment of this example, Figure 5As shown, two sets of nuts 15 are symmetrically embedded on the right end of the movable guide block 7. The right end of the right fixed seat 2 is symmetrically longitudinally provided with guide rails 16. Positioning screws 17 are movably inserted into the guide rails 16. Positioning hole sleeves 5 that are adapted to the positioning screws 17 are equidistantly provided on the surface of the binding strap 4. The positioning screws 17 pass through the positioning hole sleeves 5 and the guide rails 16 and are fastened to the nuts 15 by threaded connection.

[0029] This structure is used to connect and lock the restraint strap 4 and the movable guide block 7. The length of the folded part of the restraint strap 4 can be adjusted by inserting the positioning screw 17 into the positioning hole sleeve 5 at different positions. This allows for adjustment of the usable length of the restraint strap 4 to suit different usage needs. The outer diameter of the outer end of the positioning screw 17 is larger than the inner diameter of the positioning hole sleeve 5, and the outer end of the positioning screw 17 is provided with an internal hexagonal groove. During use, it can be rotated and disassembled using a hexagonal wrench.

[0030] As a preferred embodiment of this example, Figure 1 , Figure 2 and Figure 6 As shown, the binding assembly includes a sponge pad 18, which is sewn onto the lower surface of the binding strap 4 and is located in the middle of the binding strap 4 on the bed board 1. The upper left side surface of the binding strap 4 is sewn with a Velcro hook 19, and the left end of the binding strap 4 is sewn with a Velcro hook 20 that matches the Velcro hook 19. The left end of the bed board 1 is fixedly connected to a left fixing seat 21, and a left turning block 22 is rotatably installed inside the left fixing seat 21. The upper end of the left turning block 22 is fixedly connected to a connecting strap 23, and the end of the connecting strap 23 is fixedly connected to a collar 24. The inner diameter of the collar 24 is larger than the cross-sectional size of the binding strap 4.

[0031] The inner wall of the collar 24 is rounded to avoid sharp edges on its surface, which could cause wear when the restraint strap 4 is pulled out. When using this structure, the patient can be bound and tightened by passing the end of the restraint strap 4 through the collar 24 and pulling it out. Then, the hook side 20 of the Velcro and the loop side 19 of the Velcro are glued together. The operation is simple and convenient. To unlock, it can be opened by simply tearing it open.

[0032] As a preferred embodiment of this example, Figure 1 and Figure 8 As shown, the left and right ends of the slide groove 25 are through holes, and the opening corners of the slide groove 25 are rounded. The longitudinal section of the slide groove 25 and the slider 26 is inverted T-shaped.

[0033] This structure allows the slider 26 and locking block 27 to slide laterally into the slide groove 25, but they can only slide out and be inserted from the openings on both sides to facilitate the addition or removal of components. They cannot be removed from the top, thus preventing them from being pulled out by longitudinal tension during binding. The rounded corners of the slide groove 25 can prevent sharp edges from scratching the human body.

[0034] As a preferred embodiment of this example, Figure 8 and Figure 9 As shown, the slider 26 is square and the four corners of the slider 26 are rounded. The width of the locking block 27 is matched with the upper opening diameter of the slide groove 25. The locking block 27 can only rotate 90 degrees on the slider 26. The upper inner wall of the groove 37 is rounded.

[0035] The square structure of the slider 26 allows it to slide but not rotate within the groove 25, thus ensuring the smoothness of the component's movement within the groove 25. The rounded corners of the slider 26 prevent scratches and wear caused by sharp edges during movement. The locking block 27's rotational limitation allows it to remain vertically on the slider 26 when open and rotate 90 degrees into the groove 25 when locked.

[0036] As a preferred embodiment of this example, Figures 8 to 10 As shown, the locking assembly includes symmetrically arranged movable grooves 28 on both sides of the locking block 27. Movable seats 29 are slidably arranged in both sets of movable grooves 28. An insert block 30 is fixedly arranged on the upper side of the two sets of movable seats 29 at their respective ends, and a limit block 31 is fixedly arranged on the lower side of the two sets of movable seats 29 at their respective ends. Two sets of cylindrical slots 32 are opened at both ends of the locking block 27, and the cylindrical slots 32 are located on the upper and lower sides of the locking block 27. The cylindrical slots 32 connect the movable grooves 28, the insert blocks 30, and the limit blocks 31. 1. The insert block 30 is slidably inserted into the cylindrical slot 32. The insert block 30 is located above the upper surface of the bed board 1. The upper side of the opposite side surface of the two sets of movable seats 29 is fixedly provided with a sleeve block 33, and a return spring 34 is inserted into the sleeve block 33. The return spring 34 is horizontally arranged on the upper side of the movable slot 28. The upper end of the two sets of movable seats 29 is symmetrically provided with a pressing end block 35. The upper side of the locking block 27 is symmetrically provided with a square slot 36 that communicates with the upper side of the movable slot 28, and the diameter of the square slot 36 is adapted to the pressing end block 35.

[0037] The length of the sleeve 33 is greater than the opening length of the square slot 36. This allows the sleeve 33 to block the opening of the square slot 36 from falling into the movable slot 28 and causing the reset spring 34 to jam, or the patient to accidentally insert their finger and cause injury. The outer wall of the pressing end block 35 is set to be arc-shaped and the surface is provided with anti-slip texture. It can be opened and closed by pinching with the thumb and forefinger. The overall operation is simple and convenient and can be controlled with one hand.

[0038] As a preferred embodiment of this example, Figure 10 and Figure 11 As shown, the length of the limiting block 31 is less than the length of the insert block 30. The outer end of the limiting block 31 is hemispherical. The inner walls of the front and rear sides of the slide groove 25 are provided with limiting grooves 38 that are adapted to the diameter of the limiting block 31. The limiting block 31 slides in the limiting grooves 38.

[0039] This structure allows the limiting block 31 to slide laterally within the limiting groove 38 and can limit the locking block 27 to remain vertical. This prevents the locking block 27 from naturally falling over when the sliding slider 26 slides laterally within the slide groove 25. Furthermore, the hemispherical design prevents it from having sharp edges that could cause scratches, which is beneficial for its release from the limiting groove 38 or the slot 39 and for its alignment and insertion.

[0040] As a preferred embodiment of this example, Figure 10 and Figure 11 As shown, the insert 30 is cylindrical, and the diameter of the insert 30 is matched with the diameter of the limiting block 31. The outer end corners of the insert 30 are rounded. The inner walls of the front and rear sides of the slide groove 25 are provided with slots 39 whose inner diameter is matched with that of the insert 30.

[0041] When the insert block 30 is pinched and pressed by the end block 35, it can be retracted into the movable groove 28. After the locking block 27 is laid down, it can be aligned with the slot 39. Then, the end block 35 is released, so that the return spring 34 can use its elastic force to insert the insert block 30 into the slot 39 to lock the position of the locking block 27. When it is laid down, the restraint strap 4 will be straight and close to the patient's binding area, reducing the lateral gap. This makes the restraint strap 4 fit tightly when binding, reducing the movable space of the binding area, thereby ensuring the firmness and stability of the binding.

[0042] This device does not contain any magnetic metal. The restraint strap 4 is made of medical-grade synthetic fiber, and the springs in the device are rubber springs, non-metallic springs. The right fixing seat 2, the right rotating block 3, the left fixing seat 21, and the left rotating block 22 are made of wear-resistant ceramics, which maintains strength and rotational smoothness. Meanwhile, the remaining parts are all made of medical-grade plastic.

[0043] As a preferred embodiment of this example, Figures 12 to 14 As shown, the clamping assembly includes a support arm 41 rotatably mounted on the front end face of the bed plate 1. The front end face of the bed plate 1 has a groove adapted to the support arm 41, and the upper end face of the groove has a positioning groove 42. The lower end face of the groove has a pin hole 43 opposite to the positioning groove 42. The upper end of the support arm 41 is provided with a limiting hole 44 adapted to the positioning groove 42, and a positioning pin 45 is vertically inserted through the limiting hole 44.

[0044] The support arm 41 can only rotate 90 degrees within the groove at the front end of the bed board 1. This structure is used to position the support arm 41 by inserting the positioning pin 45 into the limiting hole 44 and the pin hole 43, so that it can be placed horizontally at the front end of the bed board 1. This allows the non-magnetic ventilator 40 to be fixed to the right rear of the bed board 1. When the bed board 1 is placed into the detection area, it can move the non-magnetic ventilator 40 along with it, thus preventing the non-magnetic ventilator 40 from being stationary when the bed board 1 is moved, which would cause the oxygen tube 52 and other tubing to be pulled. When operating the restraint strap 4, the non-magnetic ventilator 40 can be moved to the front of the bed board 1 by rotating the support arm 41, which facilitates the operation of the restraint strap 4 and the components on the right end of the bed board 1 from the right side.

[0045] As a preferred embodiment of this example, Figure 14 As shown, the clamping assembly also includes a support arm 41. A fixed clamping plate 46 is fixedly connected to the end of the support arm 41, and a movable clamping plate 48 is symmetrically arranged on the rear side of the fixed clamping plate 46. An adjusting screw 47 is threadedly inserted into the upper side of the fixed clamping plate 46, and the rear end of the adjusting screw 47 is rotatably mounted on the movable clamping plate 48. Anti-slip pads 49 are glued to the opposite surfaces of the fixed clamping plate 46 and the movable clamping plate 48. A guide rod 50 is fixedly connected to the end of the movable clamping plate 48 near the fixed clamping plate 46, and the guide rod 50 is movably inserted through the fixed clamping plate 46. A connecting seat 51 is fixedly connected to the front end of the guide rod 50, and the connecting seat 51 is rotatably mounted on the front end of the adjusting screw 47.

[0046] This structure rotates the adjusting screw 47, causing the threaded connection between the adjusting screw 47 and the fixed clamp 46 to move the movable clamp 48 closer to the fixed clamp 46. Simultaneously, the guide rod 50 slides laterally on the fixed clamp 46, thereby clamping and fixing the non-magnetic ventilator 40 placed between the fixed clamp 46 and the movable clamp 48. This allows the non-magnetic ventilator 40 to be connected and locked to the bed board 1. The anti-slip pad 49 has a concave center, which facilitates the clamping and fixing of square or cylindrical parts by the fixed clamp 46 and the movable clamp 48 to accommodate devices of different shapes.

[0047] As a preferred embodiment of this example, Figures 15 to 17 The sleeve assembly includes a positioning seat 53, which is movably sleeved on the restraint strap 4. A silicone tube sleeve 54 is rotatably mounted on the upper end of the positioning seat 53. An oxygen tube 52 passes through the silicone tube sleeve 54, and the inner diameter of the silicone tube sleeve 54 is larger than the outer diameter of the oxygen tube 52. The opening edges on both sides of the silicone tube sleeve 54 are arc-shaped, and waist-shaped holes are equidistantly opened on the surface of the silicone tube sleeve 54.

[0048] This structure is used to guide and limit the oxygen tube 52 when it is in use, so that it can be neatly placed on the upper side of the restraint band 4 and is not easily touched by the patient. It can also be freely added according to the number of sets used. The rotatable design allows it to fit the bending direction of the oxygen tube 52, preventing the oxygen tube from collapsing. At the same time, the hollow design of the waist-shaped hole allows the silicone tube sleeve 54 to deform. When its end is squeezed, it can elastically deform, thus ensuring the ventilation safety of the oxygen tube 52 when limiting its position.

[0049] Working principle: In use, first insert the slider 26 located on the right side of the bed board 1 into the slide groove 25 and slide it to the right. It is necessary to ensure that the locking block 27 on the upper side of the slider 26 can rotate to the left, and the pressing end block 35 is located to the right of the locking block 27. Then, insert another set of sliders 26 in the opposite direction into the slide groove 25. It is necessary to ensure that the locking block 27 on the upper side of this set of sliders 26 can rotate to the right, and the pressing end block 35 is located to the left of this set of grooves 37. At the same time, when the slider 26 is inserted into the slide groove 25, the limiting block 31 should be aligned with the limiting groove 38 to ensure that the limiting groove 38 cooperates with the limiting block 31 to limit the locking block 27, so that it cannot rotate directly on the slider 26, thereby allowing it to move smoothly.

[0050] If it is necessary to bind the limbs individually, four sets should be set up in opposite directions as described above, i.e. Figure 1 and Figure 7 As shown, two sets are symmetrically arranged on both sides of a single arm or leg. However, this method requires the patient to have the ability to climb onto the bed board 1 independently. If not, the limbs do not need to be fixed separately. The right locking block 27 can be installed first, and then the patient can be placed on the bed board 1 lying flat or on their side. Then, the left locking block 27 can be installed by aligning the slider 26 with the slide groove 25.

[0051] Next, thread the ends of the restraint strap 4 through the grooves 37 on the locking block 27, ensuring the sponge pad 18 of the restraint strap 4 fits against the patient's body. Then, move the locking block 27 to the patient's side, leaving a gap appropriate for the length of the locking block 27. Pinch the pressing end blocks 35 together, causing the pressing end blocks 35 to move the movable seat 29 into the movable groove 28 and compress the return spring 34. Simultaneously, the limiting block 31 and the insert block 30 will be pulled into the cylindrical slot 32. At this point, the limiting block 31 will disengage from the limiting groove 38. Then, rotate the locking block 27 ninety degrees and retract it into the sliding groove 25, aligning the insert block 30 with the slot 39. Finally, release the pressing end blocks 35, allowing the return spring 34 to push the movable seat 29 back to its original position through its elastic force, causing the insert block 30 to... The cylindrical slot 32 extends out and inserts into the aligned slot 39, locking the position of the locking block 27. After locking the locking blocks 27 on both sides of the patient in this way, the restraint strap 4 will fit snugly against both sides of the patient without significant gaps, ensuring a secure and stable binding. Next, insert the end of the restraint strap 4 into the loop 24 and wrap it around to the top. Tighten it and then attach the hook side 20 to the loop side 19. During this process, do not overtighten, as this could cause the restraint strap 4 to become too tight between the two sets of locking blocks 27, resulting in excessive pressure and discomfort on the patient. This method completes the fixation of the patient's desired areas, such as the head, limbs, chest, and abdomen. If separate fixation of the limbs is required, such as… Figure 1 As shown, the patient's limbs are placed individually between the two sets of locking blocks 27, and the binding strap 4 connecting the middle is placed under the patient's body.

[0052] After the fixation is completed, when the patient's body rises and falls slightly due to breathing or other movements, the sponge pad 18 provides cushioning. Simultaneously, the restraint strap 4 is displaced during movement, pulling the movable guide block 7 upwards within the guide groove 6 and compressing the adjusting spring 11. This allows the folded portion of the restraint strap 4 to unfold, loosening the binding. This avoids pressure and tightness on the patient, preventing discomfort. Furthermore, if the elasticity needs adjustment after binding, the knob 14 can be rotated. The knob 14 drives the transmission gear 13 to rotate, which in turn drives the guide screw 8 via the transmission worm gear 12. This causes the threaded sleeve 10 to move the fixed guide block 9 up and down on the upper side of the guide groove 6 through the threaded action. When the fixed guide block 9 moves up and down, it changes the squeezing force on the upper side of the adjusting spring 11, which in turn changes the magnitude of the resilient force exerted by the adjusting spring 11 on the movable guide block 7. That is, when the fixed guide block 9 moves up, the squeezing force on it decreases, thus reducing the feeling of tightness. When the fixed guide block 9 moves down, the squeezing force on the adjusting spring 11 increases. Therefore, when the adjusting spring 11 is pulled by the restraint strap 4, the force required to move the movable guide block 7 up increases, thereby increasing the feeling of tightness and stability. By actively restraining and locking the patient, the patient's ability to move independently is reduced, the normal breathing movement is maintained, and the possibility of the patient pulling the trachea, loosening the mask, or even moving the equipment due to movement is reduced.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0054] In the description of this application, it should be understood that the terms "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spontaneous breathing assist device for MRI examination with a locking component, characterized in that: The bed includes a bed board (1), a right fixing seat (2) is fixedly connected to the right end face of the bed board (1), and a right turning block (3) is rotatably installed at the lower end of the right fixing seat (2). A restraint strap (4) is fixedly connected to the upper end of the right turning block (3). An adjustable elastic component for adjusting the elasticity of the restraint strap (4) is provided inside the right fixing seat (2). A binding component for tightening and fixing the restraint strap (4) is provided on the left end face of the bed board (1) and the left side of the restraint strap (4). A sliding groove (25) is provided on the upper surface of the bed board (1). (25) A slider (26) is slidably provided inside. A locking block (27) is rotatably installed on the upper end of the slider (26). A groove (37) for the restraint strap (4) to pass through is provided on the upper side of the locking block (27). Locking components for vertical limiting and horizontal locking of the locking block (27) are provided on the upper and lower sides of the front and rear ends of the locking block (27). A non-magnetic ventilator (40) for assisted breathing is connected to the outer side of the bed board (1) through a clamping component. An oxygen tube (52) is provided on the restraint strap (4) through a tube sleeve component.

2. The spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The adjustable elastic component includes a guide groove (6) longitudinally opened inside the upper side of the right fixed seat (2), and a movable guide block (7) is slidably arranged in the guide groove (6). A guide screw (8) is vertically rotatably installed in the guide groove (6). The movable guide block (7) is movably sleeved on the guide screw (8). The right end of the movable guide block (7) is fixedly connected to the restraint strap (4) through a connecting component.

3. The spontaneous breathing assist device for MRI examination with a locking component according to claim 2, characterized in that: The adjustable elastic component also includes a fixed guide block (9) slidably disposed on the upper side of the guide groove (6), and a screw sleeve (10) is fixedly embedded in the middle position of the fixed guide block (9). The screw sleeve (10) is threaded onto the guide screw (8). A transmission gear (13) is rotatably mounted on the upper end of the right fixed seat (2). A transmission worm (12) meshing with the transmission gear (13) is fixedly connected to the upper end of the guide screw (8). A knob (14) is fixedly connected to the outer end of the transmission gear (13).

4. The spontaneous breathing assist device for MRI examination with a locking component according to claim 2, characterized in that: Two sets of nuts (15) are symmetrically embedded on the right end of the movable guide block (7). The right end of the right fixed seat (2) is symmetrically longitudinally provided with guide rails (16). A positioning screw (17) is movably inserted in the guide rail (16). The surface of the binding strap (4) is provided with positioning hole sleeves (5) that are compatible with the positioning screws (17). The positioning screws (17) pass through the positioning hole sleeves (5) and the guide rails (16) and are fastened to the nuts (15) by threaded connection.

5. A spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The binding assembly includes a sponge pad (18) sewn to the lower surface of the binding strap (4) and the sponge pad (18) is located in the middle of the binding strap (4) on the bed board (1). The upper left surface of the binding strap (4) is sewn with a Velcro surface (19). The left end of the binding strap (4) is sewn with a Velcro hook surface (20) that matches the Velcro surface (19). The left end of the bed board (1) is fixedly connected to a left fixing seat (21), and a left turning block (22) is rotatably installed inside the left fixing seat (21). The upper end of the left turning block (22) is fixedly connected to a connecting strap (23), and the end of the connecting strap (23) is fixedly connected to a collar (24). The inner diameter of the collar (24) is larger than the cross-sectional size of the binding strap (4).

6. The spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The left and right ends of the groove (25) are through holes, and the opening corners of the groove (25) are rounded. The longitudinal section of the groove (25) and the slider (26) is inverted T-shaped.

7. The spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The slider (26) is square and the four corners of the slider (26) are rounded. The width of the locking block (27) is adapted to the upper opening diameter of the groove (25). The locking block (27) can only rotate 90 degrees on the slider (26). The upper inner wall of the groove (37) is rounded.

8. A spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The locking assembly includes movable slots (28) symmetrically opened on both sides of the locking block (27). Movable seats (29) are slidably arranged in both sets of movable slots (28). Insert blocks (30) are fixedly arranged on the upper side of the two sets of movable seats (29) that are far apart from each other. Limit blocks (31) are fixedly arranged on the lower side of the two sets of movable seats (29) that are far apart from each other. Two sets of cylindrical slots (32) are opened at both ends of the locking block (27). The cylindrical slots (32) are located on the upper and lower sides of the locking block (27). The cylindrical slots (32) communicate with the movable slots (28). The insert blocks (30) and the limit blocks (31) are connected to each other. The insert (30) is slidably inserted into the cylindrical slot (32). The insert (30) is located above the upper surface of the bed board (1). A sleeve (33) is fixedly installed on the upper side of the opposite side surface of the two sets of movable seats (29), and a return spring (34) is inserted in the sleeve (33). The return spring (34) is horizontally arranged on the upper side of the movable slot (28). A pressing end block (35) is symmetrically arranged on the upper end of the two sets of movable seats (29). A square slot (36) is symmetrically opened on the upper side of the locking block (27) and communicates with the upper side of the movable slot (28). The diameter of the square slot (36) is adapted to the pressing end block (35).

9. A spontaneous breathing assist device for MRI examination with a locking component according to claim 8, characterized in that: The length of the limiting block (31) is less than the length of the insert block (30). The outer end of the limiting block (31) is hemispherical. The inner walls of the front and rear sides of the slide groove (25) are provided with limiting grooves (38) that are adapted to the diameter of the limiting block (31). The limiting block (31) slides in the limiting groove (38).

10. A spontaneous breathing assist device for MRI examination with a locking component according to claim 8, characterized in that: The insert (30) is cylindrical, and the diameter of the insert (30) is adapted to the diameter of the limiting block (31). The outer end corner of the insert (30) is rounded. The inner walls of the front and rear sides of the slide groove (25) are provided with slots (39) whose inner diameter is adapted to the insert (30).

11. A spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The clamping assembly includes a support arm (41) rotatably mounted on the front end face of the bed board (1). The front end face of the bed board (1) is provided with a groove adapted to the support arm (41), and the upper end face of the groove is provided with a positioning groove (42). The lower end face of the groove is provided with a pin hole (43) opposite to the positioning groove (42). The upper end of the support arm (41) is provided with a limiting hole (44) adapted to the positioning groove (42), and a positioning pin (45) is vertically inserted through the limiting hole (44).

12. A spontaneous breathing assist device for MRI examination with a locking component according to claim 11, characterized in that: The clamping assembly also includes a support arm (41), the end of which is fixedly connected to a fixed clamping plate (46), and a movable clamping plate (48) is symmetrically arranged on the rear side of the fixed clamping plate (46). An adjusting screw (47) is threadedly inserted into the upper side of the fixed clamping plate (46), and the rear end of the adjusting screw (47) is rotatably mounted on the movable clamping plate (48). Anti-slip pads (49) are glued to the opposite side surfaces of the fixed clamping plate (46) and the movable clamping plate (48). A guide rod (50) is fixedly connected to one end of the movable clamping plate (48) near the fixed clamping plate (46), and the guide rod (50) is movably inserted through the fixed clamping plate (46). A connecting seat (51) is fixedly connected to the front end of the guide rod (50), and the connecting seat (51) is rotatably mounted on the front end of the adjusting screw (47).

13. A spontaneous breathing assist device for MRI examination with a locking component according to claim 1, characterized in that: The sleeve assembly includes a positioning seat (53), which is movably sleeved on the restraint strap (4). A silicone tube sleeve (54) is rotatably installed on the upper end of the positioning seat (53). The oxygen tube (52) passes through the silicone tube sleeve (54), and the inner diameter of the silicone tube sleeve (54) is larger than the outer diameter of the oxygen tube (52). The opening edges on both sides of the silicone tube sleeve (54) are arc-shaped, and the surface of the silicone tube sleeve (54) is provided with waist-shaped holes at equal intervals.

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