Waist fixing device for nuclear magnetic resonance examination

Abstract

The utility model relates to a waist fixing device for nuclear magnetic resonance examination, and relates to the technical field of waist fixing devices.The waist fixing device comprises a bed board and a fixing assembly arranged on the bed board, the fixing assembly comprises two supporting columns and a waist clamping rod, and the two supporting columns are arranged on the two sides of the bed board respectively; one end of the waist clamping rod is hinged to one of the supporting columns, a clamping part is arranged between the other end of the waist clamping rod and the other supporting column, the clamping part is used for enabling the waist clamping rod and the supporting columns to be detachably connected, and the waist clamping rod is made of a rigid material; and the middle part is bent along the direction far away from the bed board to form an arc shape matched with the waist of a human body. The application has the effect that a twisting space is not easy to remain after the waist of a patient and the bed board are fixed.

Description

Technical Field

[0001] The present application relates to the technical field of waist fixation devices, and in particular to a waist fixation device for magnetic resonance imaging. Background Art

[0002] Magnetic resonance imaging is a common imaging examination method and a powerful tool for early screening of tumors, heart disease and cerebrovascular disease.

[0003] During MRI examination, in order to prevent the patient from twisting his body due to nervousness, the patient's waist and the bed board need to be fixed. The existing waist fixing method is mainly achieved by a retractable belt and Velcro. The retractable belt connected to the bed board is tied to the patient's waist through Velcro, and the patient's waist is fixed relative to the bed board by the elastic force of the retractable belt.

[0004] Although the retractable belt can bind the patient's waist to the bed board, the elastic properties of the retractable belt mean that there is still room for the patient's waist to twist, which is not conducive to magnetic resonance imaging. Utility Model Content

[0005] In order to prevent twisting space between the patient's waist and the bed board after being fixed, the present application provides a waist fixation device for magnetic resonance imaging examination.

[0006] The present application provides a waist fixation device for nuclear magnetic resonance examination, which adopts the following technical solution:

[0007] A waist fixing device for nuclear magnetic resonance examination includes a bed board and a fixing component arranged on the bed board, the fixing component includes a support column and a waist clamping rod, two support columns are provided and are respectively arranged on both sides of the bed board, one end of the waist clamping rod is hinged to one of the support columns, and a clamping part is provided between the other end and the other support column, the clamping part is used to make the waist clamping rod and the support column detachably connected, the waist clamping rod is made of rigid material, and the middle part is bent in the direction away from the bed board to form an arc shape that matches the waist of the human body.

[0008] By adopting the above technical solution, the patient lies flat on the bed board, rotates the lumbar clamping rod so that the middle part of the lumbar clamping rod is aligned with the patient's waist, and the lumbar clamping rod and the support column are detachably connected through the clamping part. The lumbar clamping rod clamps the patient's waist through the arc-shaped middle part of its own bending. Since the lumbar clamping rod is made of rigid material, it is difficult for the lumbar clamping rod to deform, so that it is not easy to leave twisting space between the patient's waist and the bed board after being fixed.

[0009] Optionally, the clamping portion includes a fixed block, a clamping block and a clamping elastic member, the fixed block is fixed at one end of the clamping rod away from the hinge, and is clamped in a fixed groove opened at the top of the support column, the clamping block is slidably arranged in a sliding groove opened on the side wall of the fixed groove, the clamping elastic member is arranged between the clamping block and the bottom of the sliding groove, and is used to drive the clamping block to slide out of the sliding groove, a clamping groove facing the sliding groove is opened on the side wall of the fixed block, and the clamping block is clamped in the clamping groove.

[0010] By adopting the above technical solution, the waist clamping rod is rotated, and the waist clamping rod drives the fixed block to be clamped in the fixed groove. When the fixed block slides into the fixed groove, the clamping block slides into the sliding groove, and the clamping elastic member accumulates elastic force. After the fixed block slides into the fixed groove, the clamping block is driven to be clamped in the clamping groove by the elastic force of the clamping elastic member, thereby making it easy to achieve detachable connection between the waist clamping rod and the support column.

[0011] Optionally, one end of the blocking block located outside the slide groove is inclined along the direction away from the bottom of the slide groove toward the direction close to the bottom of the fixed groove, and the end of the blocking block close to the bottom of the slide groove is fixedly connected to a pull rod, and the pull rod is slidably passed through the locking elastic member and the support column, and the end of the pull rod away from the blocking block passes through the support column and is fixedly connected to a pull ring.

[0012] By adopting the above technical solution, since the end of the card block outside the slide groove is inclined, the fixed block can automatically push the card block to slide into the slide groove when sliding into the fixed groove. When it is necessary to release the fixation of the waist rod and the support column, pull the pull ring, the pull ring pulls the pull rod to slide, and the pull rod pulls the card block out of the slot, so that the fixed block can slide out of the fixed groove, thereby making it easy to fix and disassemble the waist rod and the support column.

[0013] Optionally, an ejection part is arranged between the waist rod and the support column to which the waist rod is hingedly connected, and the ejection part includes an ejection telescopic rod and an ejection elastic part. The ejection telescopic rod is hinged to the support column, and the movable end of the ejection telescopic rod is hinged to the waist rod. The ejection elastic part is arranged in the rodless cavity of the ejection telescopic rod and is used to drive the ejection telescopic rod to extend.

[0014] By adopting the above technical solution, when the fixing block slides out of the fixing groove, the ejection elastic member drives the elastic telescopic rod to extend through elastic force, and the elastic telescopic rod can push the waist clamping rod to rotate automatically with the help of elastic force, so that the waist clamping rod can automatically release the fixation of the patient's waist.

[0015] Optionally, the support column is slidably connected to the bed board in a direction perpendicular to the bed board, and an adjustment assembly is arranged between the two support columns and the bed board, the adjustment assembly includes an adjustment part, the adjustment part includes a rack and a gear, two of the racks and two of the gears are provided, and each corresponds to the support column one by one, the rack is fixedly connected to the support column and meshes with the gear, and the gear is rotatably connected to the bed board.

[0016] By adopting the above technical solution, the gear can be rotated to drive the rack to slide, and the rack can drive the support column to slide, so that the support column can be adjusted in height relative to the bed board, so that the waist clamp can fix the waist of patients of different body shapes.

[0017] Optionally, the two gears are coaxially fixed with an adjustment rod, and one end of the adjustment rod close to the clamping portion is fixedly connected to an adjustment handle.

[0018] By adopting the above technical solution, the adjusting rod is rotated by adjusting the handle, and the adjusting rod drives the two gears to rotate, so that the two support columns are easy to adjust synchronously. On the one hand, the adjustment efficiency of the support columns is improved, and on the other hand, the adjustment height of the two support columns is easy to keep consistent.

[0019] Optionally, the adjustment assembly also includes a fixing portion, which is arranged near the clamping portion, and the fixing portion includes a fixed plug and a fixed elastic member, the fixed block is located on a side of the gear away from the bed board, and is slidably connected to the bed board in a direction close to or away from the gear, one end of the fixed block close to the gear is adapted to the tooth groove of the gear, the fixed elastic member is fixedly connected to one end of the fixed block away from the gear, and one end of the fixed elastic member away from the fixed block is fixedly connected to the bed board, and the fixed elastic member is used to drive the fixed block to be inserted into one of the tooth grooves of the gear.

[0020] By adopting the above technical solution, the fixing elastic member can drive the fixing plug to be inserted into the tooth groove of the gear through its own elastic force, so that the gear can be fixed, thereby making it easy to fix the height of the support column after adjustment.

[0021] Optionally, a foot pedal is fixedly connected to the fixed plug block.

[0022] By adopting the above technical solution, the fixing of the gear by the fixing block can be released by stepping on the pedal with the help of the force of the foot, so that the fixing state of the gear is easy to release.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] By setting the waist clamping rod and support column made of rigid materials, it is difficult to leave twisting space between the patient's waist and the bed board after being fixed;

[0025] By providing a clamping block, a clamping elastic member, an ejection telescopic rod and an ejection elastic member, it is easy to implement and release the fixation of the waist of the patient by the waist clamping rod;

[0026] By arranging a rack, a gear, an adjusting rod and an adjusting handle, the height of the support column can be adjusted conveniently, so that the waist clamping rod can be convenient for fixing the waist of patients with different body shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of the clamping portion;

[0029] Figure 3 It is a schematic diagram of the structure of the ejection unit.

[0030] Description of reference numerals:

[0031] 1. Bed board; 11. Connecting plate; 2. Fixing assembly; 21. Support column; 211. Fixing groove; 212. Slide groove; 22. Lumbar rod; 221. Flexible rubber layer; 23. Snap-on part; 231. Fixing block; 2311. Slot; 232. Block; 2321. Pull rod; 2322. Pull ring; 233. Snap-on elastic member; 24. Ejection part; 241. Ejection telescopic rod; 242. Ejection elastic member; 3. Adjusting assembly; 31. Adjusting part; 311. Rack; 312. Gear; 313. Adjusting rod; 314. Adjusting handle; 32. Fixing part; 321. Fixing plug block; 322. Fixing elastic member; 323. Foot pedal. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The present application embodiment discloses a waist fixation device for magnetic resonance imaging. Figure 1 A waist fixing device for nuclear magnetic resonance examination includes a bed board 1 and a fixing component 2 arranged on the bed board 1, and the fixing component 2 is used to fix the patient's waist through a rigid member.

[0034] When in use, the patient lies flat on the bed board 1, and the fixing assembly 2 fixes the patient's waist to the bed board 1 through a rigid part. The rigid part makes it difficult for the patient's waist to twist, so that it is not easy to leave twisting space between the patient's waist and the bed board 1 after being fixed.

[0035] Reference Figure 1The bed board 1 is in the shape of a rectangular plate and is arranged horizontally.

[0036] The fixing assembly 2 includes a support column 21, a waist clamping rod 22, a clamping portion 23 and an ejection portion 24. Two support columns 21 are provided and are respectively located in the middle position on both sides of the length direction of the bed board 1. The support column 21 is in the shape of a rectangular column and is vertically arranged. The support column 21 is connected to the bed board 1.

[0037] The waist clamping rod 22 is made of a rigid material, such as wood or hard plastic, and is in the shape of a rectangular rod. One end of the waist clamping rod 22 in the length direction is hinged to the top of one of the support columns 21, and the other end is connected to the other support column 21 through a clamping portion 23. The middle part of the waist clamping rod 22 is bent in an arc shape that matches the waist of a human body in a direction away from the bed board 1. A flexible rubber layer 221 is fixedly provided on one side of the middle part of the waist clamping rod 22 close to the bed board 1.

[0038] Reference Figure 1 and Figure 2 The clamping portion 23 includes a fixing block 231, a clamping block 232 and a clamping elastic member 233. The fixing block 231 is fixed at one end of the clamping waist rod 22 away from the hinge and is in the shape of a rectangular block. The fixing block 231 is clamped in a fixing groove 211 opened at the top of the support column 21 close to itself. The fixing groove 211 is adapted to the fixing block 231 and penetrates the support column 21 along the width direction of the bed board 1.

[0039] Reference Figure 2 A rectangular slide groove 212 is provided on one of the side walls of the fixed groove 211 , and a rectangular clamping groove 2311 is provided on the side wall of the fixed block 231 opposite to the slide groove 212 . The shape of the clamping groove 2311 matches the shape of the slide groove 212 .

[0040] The block 232 is in the shape of a rectangular block and is slidably set in the slide groove 212. The sliding direction of the block 232 is consistent with the opening direction of the slide groove 212. The end of the block 232 away from the bottom of the slide groove 212 is clamped in the slot 2311, and is inclined along the direction away from the bottom of the slide groove 212 toward the direction close to the bottom of the fixed groove 211.

[0041] The clamping elastic member 233 is located between the clamping block 232 and the bottom of the slide groove 212. The clamping elastic member 233 is in the shape of a rectangular block and is made of elastic rubber material. One end of the clamping elastic member 233 is fixedly connected to the clamping block 232, and the other end is fixedly connected to the bottom of the slide groove 212. The clamping elastic member 233 is used to drive the clamping block 232 to slide out of the slide groove 212.

[0042] A round rod-shaped pull rod 2321 is fixedly connected to one end of the block 232 close to the locking elastic member 233. The axis of the pull rod 2321 coincides with the central axis of the block 232. The pull rod 2321 is slidably passed through the locking elastic member 233 and the support column 21. The end of the pull rod 2321 away from the block 232 passes through the support column 21 and is fixedly connected to a pull ring 2322. The pull ring 2322 is in the shape of a rectangular ring and is vertically arranged.

[0043] Reference Figure 1 and Figure 3 The ejection part 24 is located at one end of the waist clamp rod 22 near the hinge. The ejection part 24 includes an ejection telescopic rod 241 and an ejection elastic member 242. The ejection telescopic rod 241 is hinged to the support column 21 near the hinge, and the movable end of the ejection telescopic rod 241 is hinged to the waist clamp rod 22.

[0044] Reference Figure 3 The ejection elastic member 242 is located in the rodless cavity of the ejection telescopic rod 241 and is made of elastic rubber material. The ejection elastic member 242 is in the shape of a rectangular block. One end of the ejection elastic member 242 is fixedly connected to the ejection telescopic rod 241, and the other end is fixedly connected to the movable end of the ejection telescopic rod 241. The ejection elastic member 242 is used to drive the ejection telescopic rod 241 to extend.

[0045] When in use, the patient lies flat on the bed board 1 with the waist located between the two support columns 21, and the waist clamping rod 22 is rotated to allow the ejection elastic member 242 to accumulate elastic force. The waist clamping rod 22 drives the fixing block 231 to rotate, and the fixing block 231 is clamped into the fixing groove 211. The clamping block 232 slides into the sliding groove 212 under the squeezing force of the fixing block 231, and is clamped into the clamping groove 2311 under the elastic force of the clamping elastic member 233, thereby achieving the fixation of the waist clamping rod 22 and the support column 21, so that the patient's waist is rigidly fixed, so that it is not easy to leave twisting space between the patient's waist and the bed board 1 after fixation.

[0046] When it is necessary to release the fixation on the patient's waist, pull the pull ring 2322, the pull ring 2322 pulls the pull rod 2321 to slide, the pull rod 2321 pulls the card block 232 out of the card slot 2311, the ejection elastic member 242 drives the ejection telescopic rod 241 to extend through the elastic force, and the ejection telescopic rod 241 drives the waist clamping rod 22 to rotate automatically, so that the waist clamping rod 22 can automatically release the fixation on the patient's waist.

[0047] Reference Figure 1 The two support columns 21 are slidably connected to the bed board 1 along the vertical direction, and an adjustment component 3 is arranged between the two support columns 21 and the bed board 1. The adjustment component 3 is located below the bed board 1 and includes an adjustment portion 31 and a fixing portion 32.

[0048] The adjustment part 31 includes a rack 311, a gear 312, an adjustment rod 313 and an adjustment handle 314. There are two racks 311 and two gears 312, and each corresponds to the support column 21 one by one. The rack 311 is vertically arranged, and the top end is fixedly connected to the bottom end of the support column 21. The gear 312 is meshed with the rack 311 and is rotatably connected to the bed board 1 through the connecting plate 11.

[0049] The adjusting rod 313 is in the shape of a round rod and is coaxially arranged on the two gears 312. The adjusting rod 313 is fixedly connected to the two gears 312. The adjusting handle 314 is fixedly arranged at one end of the adjusting rod 313 close to the clamping portion 23. The adjusting handle 314 is in the shape of a round rod and is bent at 90° in the middle.

[0050] The fixed portion 32 is arranged near the adjusting handle 314, and the fixed portion 32 includes a fixed plug block 321 and a fixed elastic member 322. The fixed plug block 321 is in the shape of a rectangular block and is located directly below the gear 312 near the adjusting handle 314. The fixed plug block 321 is vertically arranged, and the top end is adapted to the tooth groove of the gear 312. The fixed plug block 321 is slidably connected to the bed board 1 through the connecting plate 11, and the sliding direction is the vertical direction.

[0051] The fixed elastic member 322 is in the shape of a rectangular block and is made of elastic rubber material. The fixed elastic member 322 is vertically arranged, and the top end is fixedly connected to the bottom end of the fixed plug block 321. The bottom end of the fixed elastic member 322 is fixedly connected to the bed board 1 through the connecting plate 11. The fixed elastic member 322 is used to drive the top end of the fixed plug block 321 to be inserted into one of the tooth grooves of the gear 312.

[0052] A foot pedal 323 is fixedly connected to the side wall of the fixed plug block 321 . The foot pedal 323 is in the shape of a rectangular plate and is arranged horizontally. The foot pedal 323 is arranged close to the bottom end of the fixed plug block 321 and is located on a side of the fixed plug block 321 away from the center of the bed board 1 .

[0053] When in use, step on the foot pedal 323 to move the foot pedal 323 downward, and the foot pedal 323 drives the fixed block 321 to slide down, releasing the fixation of the fixed block 321 to the gear 312, and then rotate the adjustment handle 314, the adjustment handle 314 drives the adjustment rod 313 to rotate, the adjustment rod 313 drives the two gears 312 to rotate synchronously, the gear 312 drives the rack 311 to slide, and the rack 311 drives the support column 21 to slide, so that the heights of the two support columns 21 are easy to adjust synchronously.

[0054] The implementation principle of the waist fixing device for nuclear magnetic resonance examination in the embodiment of the present application is as follows: when in use, the patient lies flat on the bed board 1 with the waist located between the two support columns 21, and steps on the foot pedal 323 to release the fixation of the fixed block 321 to the gear 312, and rotates the adjustment handle 314 to adjust the height of the support column 21 to suit the patient's body shape through the gear 312 and the rack 311, and then rotates the waist clamping rod 22 to make the fixing block 231 clamped in the fixing groove 211, and the clamping block 232 clamped in the clamping groove 2311 to achieve the fixation of the waist clamping rod 22 and the support column 21. The waist clamping rod 22 provides rigid fixation for the patient's waist, so that it is not easy to leave twisting space between the patient's waist and the bed board 1 after fixation.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waist fixation device for magnetic resonance imaging, characterized in that: The invention comprises a bed board (1) and a fixing assembly (2) arranged on the bed board (1), wherein the fixing assembly (2) comprises a support column (21) and a waist clamping rod (22), wherein two support columns (21) are provided and are respectively arranged on both sides of the bed board (1), wherein one end of the waist clamping rod (22) is hinged to one of the support columns (21), and a clamping portion (23) is provided between the other end and the other support column (21), wherein the clamping portion (23) is used to detachably connect the waist clamping rod (22) and the support column (21), and wherein the waist clamping rod (22) is made of a rigid material and has a middle portion bent in a direction away from the bed board (1) to form an arc shape adapted to the waist of a human body.

2. A waist fixation device for nuclear magnetic resonance examination according to claim 1, characterized in that: The clamping portion (23) comprises a fixed block (231), a clamping block (232) and a clamping elastic member (233); the fixed block (231) is fixedly arranged at one end of the clamping waist rod (22) away from the hinged portion and is clamped in a fixed groove (211) provided at the top end of the support column (21); the clamping block (232) is slidably arranged in a slide groove (212) provided on a side wall of the fixed groove (211); the clamping elastic member (233) is arranged between the clamping block (232) and the bottom of the slide groove (212) and is used to drive the clamping block (232) to slide out of the slide groove (212); a clamping groove (2311) facing the slide groove (212) is provided on the side wall of the fixed block (231); the clamping block (232) is clamped in the clamping groove (2311).

3. A waist fixation device for nuclear magnetic resonance examination according to claim 2, characterized in that: One end of the clamping block (232) located outside the slide groove (212) is tilted in a direction away from the bottom of the slide groove (212) toward a direction close to the bottom of the fixed groove (211); one end of the clamping block (232) close to the bottom of the slide groove (212) is fixedly connected to a pull rod (2321); the pull rod (2321) is slidably inserted through the clamping elastic member (233) and the support column (21); one end of the pull rod (2321) away from the clamping block (232) passes through the support column (21) and is fixedly connected to a pull ring (2322).

4. The waist fixation device for nuclear magnetic resonance examination according to claim 1, characterized in that: An ejection portion (24) is provided between the waist clamping rod (22) and the support column (21) to which the waist clamping rod (22) is hingedly connected. The ejection portion (24) comprises an ejection telescopic rod (241) and an ejection elastic member (242). The ejection telescopic rod (241) is hingedly connected to the support column (21), and a movable end of the ejection telescopic rod (241) is hingedly connected to the waist clamping rod (22). The ejection elastic member (242) is provided in a rodless cavity of the ejection telescopic rod (241) and is used to drive the ejection telescopic rod (241) to extend.

5. The waist fixation device for nuclear magnetic resonance examination according to claim 1, characterized in that: The support column (21) is slidably connected to the bed board (1) in a direction perpendicular to the bed board (1); an adjustment assembly (3) is provided between the two support columns (21) and the bed board (1); the adjustment assembly (3) comprises an adjustment portion (31); the adjustment portion (31) comprises a rack (311) and a gear (312); two racks (311) and two gears (312) are provided, and both correspond to the support columns (21) one by one; the rack (311) is fixedly connected to the support column (21) and meshes with the gear (312); the gear (312) is rotatably connected to the bed board (1).

6. The waist fixation device for nuclear magnetic resonance examination according to claim 5, characterized in that: An adjustment rod (313) is coaxially fixedly provided on the two gears (312), and an adjustment handle (314) is fixedly connected to one end of the adjustment rod (313) close to the clamping portion (23).

7. The waist fixation device for nuclear magnetic resonance examination according to claim 5, characterized in that: The adjustment assembly (3) further comprises a fixing portion (32), the fixing portion (32) being arranged close to the clamping portion (23), the fixing portion (32) comprising a fixing plug (321) and a fixing elastic member (322), the fixing plug (321) being located on a side of the gear (312) away from the bed board (1), and being slidably connected to the bed board (1) in a direction close to or away from the gear (312), one end of the fixing plug (321) close to the gear (312) being matched with a tooth groove of the gear (312), the fixing elastic member (322) being fixedly connected to one end of the fixing plug (321) away from the gear (312), one end of the fixing elastic member (322) away from the fixing plug (321) being fixedly connected to the bed board (1), and the fixing elastic member (322) being used to drive the fixing plug (321) to be inserted into one of the tooth grooves of the gear (312).

8. The waist fixation device for nuclear magnetic resonance examination according to claim 7, characterized in that: A foot pedal (323) is fixedly connected to the fixed plug block (321).

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