Head and neck fixing device for brain nuclear magnetic resonance

Abstract

The invention provides a head and neck fixing device for brain nuclear magnetic resonance, and relates to the technical field of medical instruments. An equipment frame is arranged at the front end of the nuclear magnetic resonance spectrometer, a progressive frame is installed at the top of the equipment frame and located at the front end of the nuclear magnetic resonance spectrometer, and a progressive table is slidably connected to the top of the progressive frame. A gear B is driven by a motor B, so that transmission of a gear ring part and limiting frames is driven, the three limiting frames can be close to or far away from one another, and clamping seats, clamping plates and cylindrical rubber pads in the limiting frames can be flexibly adjusted according to the sizes and shapes of the heads of different patients, so that the heads of the patients can be fixed in multiple directions. The problems that an existing head and neck fixing device is difficult to flexibly adjust according to the head sizes and shapes of different patients, and the imaging effect is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a head and neck fixation device for brain magnetic resonance imaging. Background Art

[0002] The basic principle of MRI examination, also known as magnetic resonance imaging, is to place the human body in a special magnetic field and use radio frequency pulses to excite the hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulses are stopped, the hydrogen nuclei emit radio signals at a specific frequency and release the absorbed energy, which is collected by a receiver outside the body and processed by an electronic computer to obtain an image. This is called MRI. During the patient's brain MRI examination, the patient's head needs to keep still to avoid examination errors.

[0003] Application No. CN202410442167.7 A head and neck fixation device for brain magnetic resonance imaging, including an examination bed, a head and neck fixation part, a skull fixation part, an air storage part and a trigger part. The examination bed includes a base and a movable bed board slidably arranged on the top surface of the base. The top surface of the movable bed board is provided with a bed surface, and a pillow is arranged on one end of the bed surface; the head and neck fixation part is arranged on the pillow, and a headrest cavity surrounded by a flexible material is formed on the head and neck fixation part; the skull fixation part is movably arranged on the pillow and is located on the side of the head and neck fixation part away from the bed surface; the air storage part is arranged on the side of the bed surface close to the pillow to correspond to the back of the user, and the air storage part is connected and cooperated with the head and neck fixation part for storing air when the user lies on the bed surface; the trigger part is arranged on the pillow and connected and cooperated with the skull fixation part. Through the cooperation of the head and neck fixing part and the skull fixing part, when the user lies on his back on the bed and rests his head on the headrest cavity, the skin on both sides of the head can be contracted and squeezed from both sides of the head. The headrest cavity surrounded by flexible material can fit along the contour of the part contacted by the head when restricting the head, thereby greatly reducing or even eliminating the user's discomfort; through the cooperation of the air storage part and the trigger part, the fixing effect and stability of the headrest are further improved to ensure that the user's head is difficult to move during the examination, while improving comfort.

[0004] Based on the search of the above patents and the understanding of existing brain MRI applications:

[0005] 1. Traditional head and neck fixation devices are difficult to flexibly adjust to the head size and shape of different patients, which may lead to poor fixation effect and fail to meet diverse needs, thus affecting the quality and safety of the examination. For example, some patients have large or small heads, and traditional fixation devices may not fit the head tightly, causing the head to move during the examination and affecting the imaging effect.

[0006] 2. Existing fixation devices often use rigid structures to fix the patient's head, which can easily exert excessive pressure on the patient's head, causing discomfort to the patient and even causing injury, thereby reducing the patient's experience and compliance.

[0007] 3. It lacks precise position adjustment and angle adjustment functions, making it impossible to finely control the position and angle of the patient's head, making it difficult to meet the requirements of different examination sites and angles, and affecting the doctor's accurate observation and diagnosis of the lesion site.

[0008] Therefore, in view of this, the existing structure and defects are studied and improved, and a head and neck fixation device for brain magnetic resonance imaging is provided, in order to achieve a more practical purpose. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a head and neck fixation device for brain magnetic resonance imaging, so as to solve the problems that the existing head and neck fixation devices are difficult to flexibly adjust according to the head size and shape of different patients, affecting the imaging effect; the existing fixation devices often adopt a rigid structure when fixing the patient's head, which easily produces excessive pressure on the patient's head and causes discomfort to the patient; and the current magnetic resonance imaging examination lacks precise position adjustment and angle adjustment functions, and cannot finely control the position and angle of the patient's head.

[0010] The present invention provides a head and neck fixation device for brain magnetic resonance imaging, which specifically includes: a magnetic resonance imaging apparatus; an equipment frame is provided at the front end of the magnetic resonance imaging apparatus, a progressive frame is installed at the top of the equipment frame, the progressive frame is located at the front end of the magnetic resonance imaging apparatus, and the top of the progressive frame is slidably connected to a progressive platform, the two sides of the rear end of the progressive platform are fixedly connected to the two sides below the front end of the fixed frame, the fixed frame is located in the middle of the magnetic resonance imaging apparatus, three slide grooves are provided at the front end of the fixed frame, and the three slide grooves of the fixed frame are distributed in a Y shape, the distance between each two adjacent slide grooves of the fixed frame is the same, and the three slide grooves of the fixed frame are arranged in a Y shape. A limit frame is slidably connected in each arc groove, an arc groove is opened at the rear end position of each limit frame, a two-section groove is opened at the inner side position of the limit frame, and the two-section groove of the limit frame is designed as an arc structure, a clamping seat is fixedly installed at the inner front end position of the limit frame, and a clamping plate is rotatably connected to the inner position of the clamping seat, five cylindrical rubber pads are provided at the inner side position of the clamping plate, and an arc-shaped arc rod is fixedly installed at the outer side position of the clamping plate, the arc rod is located in the two-section groove of the limit frame, and an arc spring is sleeved on the outer side of the arc rod, one end of the arc spring fits in the clamping plate, and the other end fits in the two-section groove of the limit frame.

[0011] Furthermore, a handle platform is provided at the front end position of the top of the progressive platform, and a back and neck seat is provided at the rear end position of the top of the progressive platform, and the back and neck seat is located at the front end position of the fixing frame.

[0012] Furthermore, a motor A is fixedly installed at the middle and lower position of the fixing frame, and a rotating shaft of the motor A is fixedly connected to a gear A.

[0013] Furthermore, the front end of the fixed frame is rotatably connected to a gear ring frame, the bottom of the gear ring frame engages with gear A, the inner position of the gear ring frame is rotatably connected to a gear ring member, and a spiral groove is provided at the front end of the gear ring member.

[0014] Furthermore, a motor B is fixedly installed at the top position of the gear ring frame, and a gear B is provided on the rotating shaft of the motor B.

[0015] Furthermore, the gear B engages with the upper rear end position of the gear ring member, and the front end position of the gear ring member engages with the arc groove positions of the three limit frames for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The front end of the fixing frame is provided with three slide grooves distributed in a Y shape and with the same spacing. A limit frame is slidably connected to each slide groove. The gear B is driven by the motor B, which in turn drives the transmission of the gear ring and the limit frame, so that the three limit frames can be moved closer to or away from each other, so that the device can be flexibly adjusted according to the size and shape of different patients' heads. The clamping seat, clamping plate and cylindrical rubber pad in the limit frame can fix the patient's head from multiple directions, ensuring a close fit and effective fixation of different patients' heads, greatly improving the fixation effect, reducing the inspection error caused by head movement, and improving the accuracy of the inspection results.

[0018] 2. The arc-shaped rod on the outside of the clamping plate is sleeved with an arc-shaped spring. When the three limit frames fix the head, the clamping force generated will cause the arc-shaped spring to contract. At the same time, the arc-shaped rod slides in the second groove of the limit frame, preventing the three clamping plates from applying excessive fixing force on the patient's head. It provides a flexible fixing method, improves the patient's comfort during the fixation process, avoids damage to the patient due to excessive pressure, and improves the patient's examination experience.

[0019] 3. By driving gear A through motor A, the gear ring frame is driven to rotate, so that the position of the patient's head clamped by the front end of the gear ring frame can be rotated and adjusted. The rotation range of the patient's head can be accurately controlled, which is convenient for the doctor to adjust the head position and angle according to the examination needs, ensuring that the doctor can observe the lesion site from the best angle, which helps to improve the accuracy of diagnosis. In addition, when adjusting the patient's head position, the patient can move backward on the progressive table, and the rotation of the clamping plate and the clamping seat and the resetting of the clamping plate by the arc spring will not cause clamping injuries to the patient's head. It also facilitates the adjustment of the patient's position, realizes the precise adjustment of the patient's head position, and ensures the safety and effectiveness of the examination process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0021] In the attached figure:

[0022] Figure 1 A schematic diagram of the overall main structure of a brain magnetic resonance imaging apparatus according to an embodiment of the present invention is shown;

[0023] Figure 2 It shows a schematic side view of the overall structure of a brain magnetic resonance imaging instrument according to an embodiment of the present invention;

[0024] Figure 3 It shows a schematic diagram of the top view of the assembly structure of the progressive frame, the fixed frame and the limiting frame according to an embodiment of the present invention;

[0025] Figure 4 It shows a left-side structural schematic diagram of the assembly of the progressive frame, the fixed frame and the limiting frame according to an embodiment of the present invention;

[0026] Figure 5 It shows a top view of a half-section assembly structure of a fixing frame and a limiting frame according to an embodiment of the present invention;

[0027] Figure 6 It shows a left-side structural schematic diagram of a half-section assembly of a fixing frame and a limiting frame according to an embodiment of the present invention;

[0028] Figure 7 It shows a schematic side view of a half-section assembly structure of a fixing frame and a limiting frame according to an embodiment of the present invention;

[0029] Figure 8 The embodiment according to the present invention is shown Figure 6 Schematic diagram of the locally enlarged structure at point A in the middle.

[0030] Reference Signs List

[0031] 1. MRI machine; 101. Equipment rack; 2. Progressive rack; 201. Progressive table; 202. Neck seat; 3. Fixed rack; 301. Motor A; 302. Gear A; 303. Gear ring rack; 304. Gear ring; 305. Motor B; 306. Gear B; 4. Limit rack; 401. Clamping seat; 402. Clamping plate; 403. Arc rod; 404. Arc spring. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined in this manner in the embodiments of the present disclosure.

[0034] The terms "first", "second" and similar terms used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms "one", "an" or "the" and similar terms do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similarly, the terms "include" or "comprise" and similar terms mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper", "lower", "front", "back", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present disclosure, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "couple", "fixed" and "attached" may refer to a direct connection between two elements or structures without other elements or structures between them, or may refer to an indirect connection between two elements or structures through an intermediate element or structure, unless otherwise expressly stated herein.

[0035] Example:

[0036] As attached Figure 1 To the attached Figure 8 As shown:

[0037] The present invention provides a head and neck fixation device for brain nuclear magnetic resonance imaging, comprising: a nuclear magnetic resonance apparatus 1; an equipment frame 101 is provided at the front end of the nuclear magnetic resonance apparatus 1, a progressive frame 2 is installed at the top of the equipment frame 101, the progressive frame 2 is located at the front end of the nuclear magnetic resonance apparatus 1, and the top of the progressive frame 2 is slidably connected to a progressive platform 201, the rear end of the progressive platform 201 is fixedly connected to the two sides of the lower front end of the fixed frame 3, the fixed frame 3 is located in the middle of the nuclear magnetic resonance apparatus 1, the front end of the fixed frame 3 is provided with three slide grooves, and the three slide grooves of the fixed frame 3 are distributed in a Y shape, the spacing between each two adjacent slide grooves of the fixed frame 3 is the same, and the three arc grooves of the fixed frame 3 are respectively slidably connected. There is a limit frame 4, and an arc-shaped groove is provided at the rear end position of each limit frame 4. A two-section groove is provided at the inner side position of the limit frame 4, and the two-section groove of the limit frame 4 is designed as an arc structure. A clamping seat 401 is fixedly installed at the inner front end position of the limit frame 4, and a clamping plate 402 is rotatably connected to the inner position of the clamping seat 401. Five cylindrical rubber pads are provided at the inner side position of the clamping plate 402, and an arc-shaped arc rod 403 is fixedly installed at the outer side position of the clamping plate 402. The arc rod 403 is located in the two-section groove of the limit frame 4, and an arc spring 404 is sleeved on the outer side of the arc rod 403. One end of the arc spring 404 fits in the clamping plate 402, and the other end fits in the two-section groove of the limit frame 4.

[0038] A handle platform is provided at the top front end of the progressive platform 201 , and a back and neck seat 202 is provided at the top rear end of the progressive platform 201 . The back and neck seat 202 is located at the front end of the fixing frame 3 .

[0039] A motor A301 is fixedly installed at the middle and lower position of the fixing frame 3, and a gear A302 is fixedly connected to the rotating shaft of the motor A301.

[0040] Among them, the front end position of the fixed frame 3 is rotatably connected to the gear ring frame 303, the bottom position of the gear ring frame 303 engages with the gear A302, the internal position of the gear ring frame 303 is rotatably connected to the gear ring part 304, the front end position of the gear ring part 304 is provided with a spiral groove, the top position of the gear ring frame 303 is fixedly installed with a motor B305, the rotating shaft of the motor B305 is provided with a gear B306, the gear B306 engages with the upper rear end position of the gear ring part 304, and the front end position of the gear ring part 304 is engaged with the arc groove position of the three limit frames 4 for transmission.

[0041] When using:

[0042] Guide the patient to lie flat on the advancement table 201, so that the patient is in front of the MRI machine 1, ensure that the patient's back and neck are against the back and neck seat 202 to obtain comfortable and stable support, and let the patient place the head at the inner front end position of the gear ring frame 303 to prepare for subsequent head fixation.

[0043] The gear B306 is driven to rotate by the rotating shaft of the motor B305. Since the gear B306 engages with the upper rear end position of the gear ring 304, it will have a further regulating effect on the movement of the gear ring 304. The front end position of the gear ring 304 is engaged with the arc groove position of the three limit frames 4, driving the three limit frames 4 to approach each other, so that the five cylindrical rubber pads on the inner side of the three clamping plates 402 gradually fit the upper left and right sides and rear position of the patient's head, thereby achieving preliminary clamping and fixation of the patient's head.

[0044] When the distance between the three limit frames 4 is reduced and the three clamping plates 402 fit the patient's head, the clamping force generated will be transmitted to the arc spring 404, and the arc spring 404 begins to shrink. At the same time, the arc rod 403 shrinks and slides in the second groove of the limit frame 4. This design can prevent the three clamping plates 402 from applying excessive fixing force on the patient's head, ensuring that the patient's head is in a comfortable state during the fixation process.

[0045] In addition, if the patient needs to further adjust the head toward the inside of the gear ring frame 303, the patient only needs to continue moving backward on the progressive platform 201. The three clamping plates 402 rotate with the clamping seat 401 and the arc spring 404 resets the clamping plate 402, which will not cause pinching injuries to the patient's head and also facilitates the patient's position adjustment.

[0046] When the patient's head needs to be rotated, the shaft of motor A301 is started to drive gear A302 to rotate. The rotation of gear A302 will drive the gear ring frame 303 engaged with it to rotate, thereby ensuring that the position of the patient's head clamped at the front end of the gear ring frame 303 is rotated and adjusted. No adjustment is required by the patient. The rotation amplitude of the patient's head can be accurately controlled through the above-mentioned adjustment method. Since the five cylindrical rubber pads arranged on the inner side of the clamping plate 402 fit closely to the patient's head, the patient's head can be effectively prevented from sliding in the fitting position, ensuring the stability of the head position, thereby ensuring the smooth progress of the brain MRI examination.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A head and neck fixation device for brain magnetic resonance imaging, characterized in that: include: A nuclear magnetic resonance apparatus (1); a device rack (101) is arranged at the front end of the nuclear magnetic resonance apparatus (1); a progressive rack (2) is installed at the top of the device rack (101); the progressive rack (2) is located at the front end of the nuclear magnetic resonance apparatus (1); and a progressive platform (201) is slidably connected to the top of the progressive rack (2); the two sides of the rear end of the progressive platform (201) are fixedly connected to the two sides of the lower front end of a fixed rack (3); the fixed rack (3) is located at the middle of the nuclear magnetic resonance apparatus (1); three slide grooves are arranged at the front end of the fixed rack (3); and the three slide grooves of the fixed rack (3) are distributed in a Y shape; the interval between each two adjacent slide grooves of the fixed rack (3) is the same; and a limit rack (4) is slidably connected to each of the three arc grooves of the fixed rack (3); and each limit rack (4) is slidably connected to each of the three arc grooves. The rear end of the positioning frame (4) is provided with an arc groove, the inner side of the limiting frame (4) is provided with a two-section groove, and the two-section groove of the limiting frame (4) is designed as an arc structure, a clamping seat (401) is fixedly installed at the inner front end of the limiting frame (4), and a clamping plate (402) is rotatably connected to the inner position of the clamping seat (401), and five cylindrical rubber pads are arranged at the inner side of the clamping plate (402), and an arc rod (403) with an arc design is fixedly installed at the outer side of the clamping plate (402), and the arc rod (403) is located in the two-section groove of the limiting frame (4), and an arc spring (404) is sleeved at the outer side of the arc rod (403), and one end of the arc spring (404) is in contact with the clamping plate (402), and the other end is in contact with the two-section groove of the limiting frame (4).

2. A head and neck fixation device for brain magnetic resonance imaging as claimed in claim 1, characterized in that: A handle platform is provided at the front end of the top of the progressive platform (201), and a back and neck seat (202) is provided at the rear end of the top of the progressive platform (201), and the back and neck seat (202) is located at the front end of the fixing frame (3).

3. A head and neck fixation device for brain MRI as claimed in claim 1, characterized in that: A motor A (301) is fixedly mounted at the middle and lower position of the fixing frame (3), and a gear A (302) is fixedly connected to the rotating shaft of the motor A (301).

4. A head and neck fixation device for brain magnetic resonance imaging as claimed in claim 3, characterized in that: The front end of the fixed frame (3) is rotatably connected to a gear ring frame (303), the bottom of the gear ring frame (303) is meshed with the gear A (302), the inner part of the gear ring frame (303) is rotatably connected to a gear ring member (304), and the front end of the gear ring member (304) is provided with a spiral groove.

5. A head and neck fixation device for brain MRI as claimed in claim 4, characterized in that: A motor B (305) is fixedly mounted on the top of the gear ring frame (303), and a gear B (306) is disposed on the rotating shaft of the motor B (305).

6. A head and neck fixation device for brain MRI as claimed in claim 5, characterized in that: The gear B (306) meshes with the upper rear end position of the gear ring (304), and the front end position of the gear ring (304) meshes with the arc groove positions of the three limit frames (4) for transmission.

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