Magnetic resonance head examination fixator

Abstract

The utility model discloses a magnetic resonance head examination fixator which comprises a bed body, two sliding grooves are formed in the top of the bed body, two sliding rails are fixedly connected to the positions, located on the two sides of the two sliding grooves, of the top of the bed body, and two moving blocks are slidably connected to the tops of the two sliding rails in a sleeved mode. And fixing assemblies are arranged on one sides of the surfaces of the two moving blocks. By arranging the worm, the worm gear, the gear, the racks, the clamping plates and the like, the rotating wheel is rotated to enable the worm to drive the worm gear to rotate, the worm gear drives the gear to rotate, and the racks meshed with the two sides of the gear simultaneously move in opposite or opposite directions when the gear rotates. Compared with separate operation in the prior art, only one rotating wheel needs to be rotated, the clamping plates on the two sides synchronously clamp or loosen, and it is guaranteed that the head of a patient cannot deviate due to the fact that the moving distances of the clamping plates on the two sides are inconsistent.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic resonance inspection head fixation, in particular to a magnetic resonance head inspection fixer. Background Art

[0002] Magnetic resonance imaging is an imaging technology that reconstructs images using signals generated by the resonance of atomic nuclei in a strong magnetic field. It is a nuclear physics phenomenon that uses radio frequency pulses to excite atomic nuclei with non-zero spin placed in a magnetic field. After the radio frequency pulse stops, the atomic nuclei relax, and during the relaxation process, an induction coil is used to collect signals, which are reconstructed into digital images according to certain mathematical methods. It is currently widely used in the medical field. When using magnetic resonance imaging, a head fixator is required to fix the patient's head.

[0003] A magnetic resonance head examination fixture with publication number CN219331649U includes a pillow, mounting columns are installed on both sides of the top of the pillow, a mounting cavity is installed on the top of the mounting column, a moving mechanism is arranged inside the mounting cavity, a movable rod is arranged inside the mounting cavity, a fixed cavity is installed on one side of the movable rod, a mounting mechanism is arranged inside the fixed cavity, a splint is installed on one side of the mounting mechanism, and a soft cushion is installed on the inner side of the splint.

[0004] The above technical solution provides a moving mechanism inside the installation cavity, and utilizes the mutual cooperation between the cavity, rotating wheel, worm, worm wheel, transmission gear, transmission rack, limit rod, limit sleeve and connecting plate of the moving mechanism to drive the splint and the cushion to be moved conveniently, and utilizes the self-locking function between the worm and the worm wheel to fix the splint and the cushion anywhere, making the fixer more convenient and efficient when in use, thereby greatly improving the practicality of the fixer when in use.

[0005] However, when fixing the head during actual use, it is necessary to rotate the two wheels on both sides to control the splints on both sides respectively. Not only is the operation complicated, but the splints on both sides cannot move synchronously. The inconsistent moving distances on both sides will cause the patient's head to deviate from the center of the pillow. In addition, people's heads are of different sizes. The position of the pillow in the prior art cannot be adjusted. When fixed, the position cannot be adjusted so that the head is exactly at the height of the center of the splint. The clamping is very inconvenient and the head fixation is unstable. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the prior art needs to rotate two rotating wheels on both sides to respectively control the splints on both sides, which is not only complicated to operate but also the splints on both sides cannot move synchronously. The inconsistent moving distances on both sides will cause the patient's head to deviate from the center of the pillow. In addition, people's heads are of different sizes. The position of the pillow in the prior art cannot be adjusted, and the position cannot be adjusted when fixed so that the head is exactly at the height of the center of the splint. The clamping is very inconvenient and the head fixation is unstable.

[0007] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a magnetic resonance head inspection fixture, including a bed, the top of the bed is provided with two slide grooves, the top of the bed and the two sides of the two slide grooves are fixedly connected with two slide rails, the tops of the two slide rails are sleeved with two moving blocks in sliding connection, one side of the surface of the two moving blocks is provided with a fixing component, the bottom ends of the two moving blocks respectively penetrate the two slide grooves and extend to the bottom of the bed to be fixedly connected with a limiting block, one side of the surface of the two limiting blocks is fixedly connected with a connecting plate, one side of the surface of the two connecting plates is fixedly connected with a rack, the bottom of the bed is fixedly connected with a protective shell, the bottom of the bed is rotatably connected with a rotating shaft at the middle position of the two racks, the bottom end of the rotating shaft is rotatably connected with the inner bottom of the protective shell, the outer sleeve of the rotating shaft is fixedly connected with a gear, the outer sleeve of the rotating shaft and the lower part of the gear are fixedly connected with a worm gear, the inner surface of the protective shell is rotatably connected with a transmission rod between the two sides, and the outer side of the transmission rod and the position on one side of the worm gear are fixedly connected with a worm;

[0008] A mounting groove is provided on the top of the bed, a mounting plate is slidably connected to the inner wall of the mounting groove, an inflatable cushion is provided at the inner bottom of the mounting groove and below the mounting plate, a neck support is fixedly connected to the top of the mounting plate, the top of the neck support passes through the mounting groove and extends to the top of the bed, and a head support is fixedly connected to one side of the surface of the neck support.

[0009] Preferably, the fixing assembly includes a connecting rod, which is fixedly connected to one side of the surface of the moving block, and a fixing sleeve is installed on the outer sleeve of the connecting rod, and a threaded hole is penetrated through the outer wall of the fixing sleeve, and a top screw is installed on the internal thread of the threaded hole, and the top end of the top screw extends through and extends to the interior of the fixing sleeve and is tightly pressed against the outer wall of the connecting rod, and a splint is fixedly connected to one side of the surface of the fixing sleeve, and a buffer pad is fixedly connected to the inner wall of the splint, and the buffer pad is made of sponge material and can protect the patient's head.

[0010] Preferably, the tops of the neck support and the head support are both equipped with protective pads via Velcro, which facilitates installation and removal.

[0011] Preferably, a rotating wheel is provided on one side of the surface of the protective shell, and an output end of the rotating wheel extends through and into the interior of the protective shell and is fixedly connected to one end of a rotating shaft.

[0012] Preferably, the bottom of the bed body is fixedly connected with a limiting plate on both sides of the two limiting blocks, and the surfaces of the two limiting blocks are slidably connected to the surfaces of the two limiting plates on both sides respectively. The limiting plates can limit the limiting blocks to make their sliding more stable.

[0013] Preferably, the gear is meshed with the two racks, and the worm wheel is meshed with the worm.

[0014] Preferably, one side of the surface of the inflatable cushion is fixedly connected with an air inlet pipe, one end of the air inlet pipe extends through and extends to the outside of the bed body and is fixedly connected with an inflatable airbag ball, and the inflatable airbag ball can deflate and inflate the inflatable cushion.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets components such as a worm, a worm wheel, a gear, a rack and a splint. The worm drives the worm wheel to rotate by rotating the rotating wheel, and the worm wheel drives the gear to rotate. When the gear rotates, the racks meshing on both sides of the gear move in opposite or relative directions at the same time, and the rack drives the connecting plate and the limit block to move, thereby realizing the synchronous movement of the splints on both sides. Compared with the separate operation of the original technology, only one rotating wheel needs to be rotated, and the splints on both sides can be clamped or released synchronously, thereby ensuring that the patient's head will not be offset due to the inconsistent movement distance of the splints on both sides.

[0017] 2. The utility model provides components such as an inflatable airbag ball, an inflatable cushion, a mounting plate and a protective cushion. The inflatable airbag ball is squeezed to inflate the inflatable cushion. The inflation of the inflatable cushion lifts up the mounting plate, which can raise the position of the neck support and the head support, adjust the patient's head so that its height corresponds to the splint, and the head is fixed more conveniently and stably. The protective cushion is installed with Velcro, which is more convenient to disassemble, clean and disinfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a stereoscopic diagram of a magnetic resonance head examination fixture of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a protective shell of a magnetic resonance head inspection fixture of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of a mounting slot of a magnetic resonance head inspection fixture of the utility model;

[0021] Figure 4 For this utility model Figure 1 A magnified view of middle;

[0022] Figure 5 For this utility model Figure 1 Enlarged view of B.

[0023] In the figure: 1. bed body; 2. slide groove; 3. slide rail; 4. moving block; 5. limit block; 6. connecting plate; 7. rack; 8. protective shell; 9. rotating shaft; 10. gear; 11. worm gear; 12. transmission rod; 13. worm; 14. mounting groove; 15. mounting plate; 16. inflatable cushion; 17. neck support; 18. head support; 19. connecting rod; 20. fixing sleeve; 21. top screw; 22. splint; 23. protective cushion; 2301, Velcro; 24. rotating wheel; 25. limit plate; 26. air inlet pipe; 27. air bag ball for inflation. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figures 1 to 4 A magnetic resonance head inspection fixture comprises a bed 1, wherein two slide slots 2 are provided on the top of the bed 1, two slide rails 3 are fixedly connected to the top of the bed 1 and located on both sides of the two slide slots 2, two moving blocks 4 are slidably connected to the top of the two slide rails 3, and a fixed component is provided on one side of the surface of the two moving blocks 4, the bottom ends of the two moving blocks 4 respectively penetrate the two slide slots 2 and extend to the bottom of the bed 1 to be fixedly connected to the limiting blocks 5, and one side of the surface of the two limiting blocks 5 is fixedly connected to a connecting plate 6, and the surface of the two connecting plates 6 is The sides are fixedly connected with racks 7, the bottom of the bed body 1 is fixedly connected with a protective shell 8, the bottom of the bed body 1 and the middle position of the two racks 7 are rotatably connected with a rotating shaft 9, the bottom end of the rotating shaft 9 is rotatably connected with the inner bottom of the protective shell 8, the outer sleeve of the rotating shaft 9 is fixedly connected with a gear 10, the outer sleeve of the rotating shaft 9 and the lower part of the gear 10 is fixedly connected with a worm gear 11, the inner surface of the protective shell 8 is rotatably connected with a transmission rod 12 between the two sides, and the outer sleeve of the transmission rod 12 and the position on one side of the worm gear 11 is fixedly connected with a worm 13;

[0026] A mounting groove 14 is provided at the top of the bed body 1, and a mounting plate 15 is slidably connected to the inner wall of the mounting groove 14. An inflatable cushion 16 is provided at the inner bottom of the mounting groove 14 and below the mounting plate 15. A neck support 17 is fixedly connected to the top of the mounting plate 15. The top of the neck support 17 passes through the mounting groove 14 and extends to the top of the bed body 1, and a head support 18 is fixedly connected to one side of the surface of the neck support 17.

[0027] like Figures 1 to 5As shown, one side of the surface of the inflatable cushion 16 is fixedly connected with an air inlet pipe 26, one end of the air inlet pipe 26 extends through and extends to the outside of the bed body 1 and is fixedly connected with an inflatable airbag ball 27, and the inflatable airbag ball 27 can deflate and inflate the inflatable cushion 16, the gear 10 and the two racks 7 are meshingly connected, the worm wheel 11 and the worm 13 are meshingly connected, the bottom of the bed body 1 and the two sides of the two limit blocks 5 are fixedly connected with the limit plates 25, the two sides of the surface of the two limit blocks 5 are respectively slidably connected with the surfaces of the two limit plates 25, the limit plates 25 can limit the limit blocks 5 to make their sliding more stable, and a rotating wheel 24 is provided on one side of the surface of the protective shell 8, and the output end of the rotating wheel 24 extends through and extends to the inside of the protective shell 8 and is connected to the protective shell 8. One end of the rotating shaft 9 is fixedly connected, and the tops of the neck support 17 and the head support 18 are both installed with protective pads 23 through Velcro 2301. Velcro 2301 is convenient for installation and disassembly. The fixing component includes a connecting rod 19, and the connecting rod 19 is fixedly connected to one side of the surface of the moving block 4. A fixing sleeve 20 is installed on the outer sleeve of the connecting rod 19. A threaded hole is penetrated on the outer wall of the fixing sleeve 20, and a top screw 21 is installed on the internal thread of the threaded hole. The top end of the top screw 21 extends through and extends to the interior of the fixing sleeve 20 and is tightly pressed against the outer wall of the connecting rod 19. A splint 22 is fixedly connected to one side of the surface of the fixing sleeve 20, and a buffer pad is fixedly connected to the inner wall of the splint 22. The buffer pad is made of sponge material and can protect the patient's head.

[0028] When the utility model is in use, the patient lies down and places the neck and head on the neck support 17 and the head support 18 respectively. When the patient's head is lower than the position of the splint 22, the inflatable airbag ball 27 is squeezed by hand to inflate the inflatable cushion 16 placed at the bottom of the mounting groove 14. The inflatable cushion 16 is inflated to lift the mounting plate 15, and the mounting plate 15 drives the neck support 17 fixedly connected to its top to move upward, and the height of the neck support 17 and the head support 18 are adjusted so that the position of the patient's head is flush with the height of the splint 22, and then the rotating wheel 24 is rotated, and the output end of the rotating wheel 24 drives the worm 13 and the worm 13 fixedly connected to the outside of the transmission rod 12 to rotate, and the worm 13 is meshed and connected with the worm wheel 11, driving the worm wheel 11 to rotate, and the worm wheel 11 drives the rotating shaft 9 and The gear 10 fixedly connected to the outside of the rotating shaft 9 rotates, and the gear 10 and the two racks 7 meshingly connected on both sides of the driving gear 10 move synchronously in opposite directions. The rack 7 drives the connecting plate 6 and the limit block 5 fixedly connected to the connecting plate 6 to move, and the limit block 5 drives the moving block 4 to slide on the slide rail 3, which can drive the splint 22 to clamp and fix the patient's head. Only one rotating wheel 24 needs to be operated. When cleaning and disinfection is required, the top screw 21 can be loosened to remove the fixed sleeve 20 slidably installed on the outside of the connecting rod 19, and the protective pad 23 can be torn off by force. The protective pad 23 installed on the neck support 17 and the head support 18 through the Velcro 2301 can be removed for cleaning and disinfection, and the operation is more convenient and quick.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A magnetic resonance head examination fixture, comprising a bed (1), characterized in that: Two slide grooves (2) are provided on the top of the bed body (1); two slide rails (3) are fixedly connected to the top of the bed body (1) and located on both sides of the two slide grooves (2); two moving blocks (4) are slidably connected to the top of the two slide rails (3); one side of the surface of the two moving blocks (4) is provided with a fixing component; the bottom ends of the two moving blocks (4) respectively penetrate the two slide grooves (2) and extend to the bottom of the bed body (1) to be fixedly connected to the limiting blocks (5); one side of the surface of the two limiting blocks (5) is fixedly connected to a connecting plate (6); one side of the surface of the two connecting plates (6) is fixedly connected to a rack (7); The bottom of the bed body (1) is fixedly connected to a protective shell (8); the bottom of the bed body (1) is rotatably connected to a rotating shaft (9) located in the middle of the two racks (7); the bottom end of the rotating shaft (9) is rotatably connected to the inner bottom of the protective shell (8); the outer portion of the rotating shaft (9) is sleeved and fixedly connected to a gear (10); the outer portion of the rotating shaft (9) is sleeved and fixedly connected to a worm wheel (11) located below the gear (10); a transmission rod (12) is rotatably connected between the two sides of the inner surface of the protective shell (8); the outer portion of the transmission rod (12) is sleeved and fixedly connected to a worm wheel (13) located on one side of the worm wheel (11); The top of the bed body (1) is provided with a mounting groove (14), the inner side wall of the mounting groove (14) is slidably connected to a mounting plate (15), an inflatable cushion (16) is provided at the inner bottom of the mounting groove (14) and below the mounting plate (15), the top of the mounting plate (15) is fixedly connected to a neck support (17), the top end of the neck support (17) passes through the mounting groove (14) and extends to the top of the bed body (1), and a head support (18) is fixedly connected to one side of the surface of the neck support (17).

2. The magnetic resonance head examination fixture according to claim 1, characterized in that: The fixing assembly comprises a connecting rod (19), wherein the connecting rod (19) is fixedly connected to one side of the surface of the moving block (4), a fixing sleeve (20) is installed on the outer sleeve of the connecting rod (19), a threaded hole is penetrated through the outer wall of the fixing sleeve (20), a top screw (21) is installed on the inner thread of the threaded hole, the top end of the top screw (21) extends through the inside of the fixing sleeve (20) and is tightly pressed against the outer wall of the connecting rod (19), a clamping plate (22) is fixedly connected to one side of the surface of the fixing sleeve (20), and a buffer pad is fixedly connected to the inner wall of the clamping plate (22), and the buffer pad is made of sponge material.

3. The magnetic resonance head examination fixture according to claim 1, characterized in that: The tops of the neck support (17) and the head support (18) are both mounted with protective pads (23) via Velcro (2301).

4. The magnetic resonance head examination fixture according to claim 1, characterized in that: A rotating wheel (24) is provided on one side of the surface of the protective shell (8), and an output end of the rotating wheel (24) extends through the interior of the protective shell (8) and is fixedly connected to one end of the rotating shaft (9).

5. The magnetic resonance head examination fixture according to claim 1, characterized in that: The bottom of the bed body (1) is fixedly connected to a limiting plate (25) on both sides of the two limiting blocks (5), and the surfaces of the two limiting blocks (5) are slidably connected to the surfaces of the two limiting plates (25) on both sides.

6. The magnetic resonance head examination fixture according to claim 1, characterized in that: The gear (10) is meshed with the two racks (7), and the worm wheel (11) is meshed with the worm (13).

7. The magnetic resonance head examination fixture according to claim 1, characterized in that: An air inlet pipe (26) is fixedly connected to one side of the surface of the inflatable cushion (16), and one end of the air inlet pipe (26) extends through and extends to the outside of the bed body (1) and is fixedly connected to an inflatable air bag ball (27).

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