Head fixing device for medical magnetic resonance examination

Abstract

The invention discloses a medical magnetic resonance examination head fixing device which structurally comprises an examination couch body, a mounting groove is formed in the examination couch body, the medical magnetic resonance examination head fixing device further comprises driving mechanisms, a supporting frame and a buffer assembly, and the driving mechanisms are symmetrically arranged on the two sides of the interior of the mounting groove, movably connected with the supporting frame and used for controlling the supporting frame to move; the supporting frame is movably connected with the inner side of the mounting groove, and a limiting assembly is arranged at the joint and used for limiting the moving direction of the supporting frame. A headrest is arranged on the upper portion of the supporting frame, and the buffering assembly is arranged between the supporting frame and the headrest and used for connecting and supporting the headrest. The driving mechanism comprises an electric telescopic rod and a push rod, the fixed end of the electric telescopic rod is fixedly connected with the inner side of the mounting groove, and the end of the movable end of the electric telescopic rod is fixedly connected with the push rod. The invention belongs to the field of magnetic resonance devices, and particularly relates to a medical magnetic resonance examination head fixing device.

Description

Technical Field

[0001] The invention belongs to the field of magnetic resonance devices, in particular to a head fixing device for medical magnetic resonance examination. Background Art

[0002] As an important means of non-invasive diagnosis, magnetic resonance imaging (MRI) places extremely high demands on patient position stability, especially during head scans, where micron-level displacements can lead to image artifacts. Currently, sponge pads or straps are commonly used for fixation in clinical practice, but these cannot adapt to different head shapes and lack dynamic adjustment capabilities. In recent years, studies have attempted mechanical clamping devices, but most have encountered problems such as complex structures, strong pressure, or metal components interfering with the magnetic field. With the popularization of high-field MRI, scanning times have been extended to over 30 minutes, and the contradiction between patient comfort and fixation reliability has become increasingly prominent. Summary of the Invention

[0003] The present invention mainly solves the above technical problems.

[0004] To solve the above problems, the present invention adopts the following technical solution: The head fixation device for medical magnetic resonance examination proposed by the present invention includes an examination bed body, an installation slot is defined in the examination bed body, and further includes a drive mechanism, a support frame, and a buffer assembly:

[0005] The driving mechanism is symmetrically arranged on both sides of the interior of the installation slot and is movably connected to the support frame to control the movement of the support frame;

[0006] The support frame and the inner side of the mounting groove are movably connected, and a limit assembly is provided at the connection point to limit the moving direction of the support frame;

[0007] A head pad is provided on the upper portion of the support frame, and the buffer assembly is provided between the support frame and the head pad and is used for connecting and supporting the head pad.

[0008] Furthermore, the driving mechanism includes an electric telescopic rod and a push rod, the fixed end of the electric telescopic rod is fixedly connected to the inner side of the mounting groove, and the movable end of the electric telescopic rod is fixedly connected to the push rod.

[0009] Furthermore, a sliding groove is provided on the inner side of the push rod, a sliding block is fixedly connected to the side of the lower portion of the support frame, and the sliding block and the sliding groove are slidably connected.

[0010] Furthermore, the limiting assembly includes limiting blocks, which are respectively fixed on both sides of the support frame. A limiting groove is opened on the inner side of the installation groove, and the limiting block and the limiting groove are slidably connected.

[0011] Furthermore, there are two groups of limiting grooves, which are symmetrically arranged.

[0012] Furthermore, the limiting grooves are arranged at an angle, and adjacent parts of the two groups of limiting grooves are lower.

[0013] Furthermore, the buffer assembly includes a damper, the lower end of the damper is connected to the upper part of the support frame, the upper end of the damper is connected to the lower part of the head pad, and the outer side of the damper is provided with a spring, one end of the spring is connected to the head pad, and the other end is connected to the support frame.

[0014] Furthermore, the adjacent surfaces of the two groups of head pads are configured as arc-shaped groove structures, and the grooves are made of silicone material.

[0015] Furthermore, the examination bed body and the upper part of the headrest are covered with rubber pads.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] 1. The head fixation device for medical magnetic resonance examination proposed in this scheme controls the movement of head pads on both sides for clamping through a driving mechanism, which is convenient for fixing heads of different widths.

[0018] 2. The medical magnetic resonance imaging head fixation device proposed in this scheme has a limit groove designed with an inclined track to allow the head to naturally sink to the standard anatomical position, reducing muscle tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the internal structure of the present invention;

[0021] Figure 3 It is an enlarged schematic diagram of the local structure of the present invention.

[0022] Among them, 1. Examination bed body, 101. Mounting slot, 2. Driving mechanism, 201. Electric telescopic rod, 202. Push rod, 203. Slide slot, 3. Support frame, 301. Slider, 4. Limiting assembly, 401. Limiting block, 402. Limiting slot, 5. Buffering assembly, 501. Spring, 502. Damping, 6. Head pad, 7. Rubber pad.

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] like Figure 1-3 As shown, the medical magnetic resonance examination head fixing device proposed in the present invention includes an examination bed main body 1, an installation slot 101 is opened inside the examination bed main body 1, and also includes a driving mechanism 2, a support frame 3 and a buffer assembly 5: the driving mechanism 2 is symmetrically arranged on both sides of the installation slot 101, and is movably connected to the support frame 3 to control the movement of the support frame 3; the support frame 3 and the inner side of the installation slot 101 are movably connected, and a limit assembly 4 is provided at the connection point for limiting the moving direction of the support frame 3; a head pad 6 is provided on the upper part of the support frame 3, and the buffer assembly 5 is arranged between the support frame 3 and the head pad 6 for connecting and supporting the head pad 6.

[0026] like Figure 2-3 As shown, the driving mechanism 2 includes an electric telescopic rod 201 and a push rod 202. The fixed end of the electric telescopic rod 201 is fixedly connected to the inner side of the mounting groove 101, and the movable end of the electric telescopic rod 201 is fixedly connected to the push rod 202. A slide groove 203 is provided on the inner side of the push rod 202. A slider 301 is fixedly connected to the lower side of the support frame 3, and the slider 301 and the slide groove 203 are in sliding connection.

[0027] like Figure 2-3 As shown, the limit assembly 4 includes a limit block 401, which is fixed on both sides of the support frame 3 respectively. A limit slot 402 is opened on the inner side of the installation slot 101. The limit block 401 and the limit slot 402 are slidably connected. There are two groups of limit slots 402, which are symmetrically arranged. The limit slots 402 are inclined, and the adjacent parts of the two groups of limit slots 402 are lower.

[0028] like Figure 1-3 As shown, the buffer assembly 5 includes a damper 502, the lower end of the damper 502 is connected to the upper part of the support frame 3, the upper end of the damper 502 is connected to the lower part of the head pad 6, and a spring 501 is provided on the outer side of the damper 502. One end of the spring 501 is connected to the head pad 6, and the other end is connected to the support frame 3 to avoid rigid collision between the head and the head pad 6. The adjacent surfaces of the two groups of head pads 6 are set as arc-shaped groove structures, and the grooves are set as silicone material. The upper part of the inspection bed body 1 and the head pad 6 is covered with a rubber pad 7, which increases the comfort of lying down and is convenient for quick removal and replacement.

[0029] During specific use, when the patient lies on the upper part of the examination bed body 1, the head is aligned between the head pads 6 on both sides. At this time, the head pad 6 is in a higher position, which is convenient for the patient to rest his head on the head pad 6. Then the electric telescopic rod 201 is started to extend the control push rod 202 to push the support frame 3 to move. Under the sliding cooperation of the slider 301 and the slide groove 203, and under the sliding cooperation of the limit block 401 and the limit groove 402, the head pads 6 on both sides are controlled to move toward each other, and the head is controlled to move slowly downward until the clamping of both sides of the head is achieved and the head and body are kept completely level.

[0030] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A head fixing device for medical magnetic resonance examination, comprising an examination bed body (1), wherein a mounting groove (101) is provided inside the examination bed body (1), characterized in that: It also includes a driving mechanism (2), a support frame (3) and a buffer assembly (5): The driving mechanism (2) is symmetrically arranged on both sides of the interior of the installation groove (101), and is movably connected to the support frame (3) to control the movement of the support frame (3); The support frame (3) and the inner side of the installation groove (101) are movably connected, and a limiting component (4) is provided at the connection point for limiting the moving direction of the support frame (3); A head pad (6) is provided on the upper portion of the support frame (3), and the buffer assembly (5) is provided between the support frame (3) and the head pad (6) and is used for connecting and supporting the head pad (6).

2. The head fixation device for medical magnetic resonance imaging according to claim 1, characterized in that: The driving mechanism (2) comprises an electric telescopic rod (201) and a push rod (202); the fixed end of the electric telescopic rod (201) is fixedly connected to the inner side of the mounting groove (101); and the movable end of the electric telescopic rod (201) is fixedly connected to the push rod (202).

3. The head fixation device for medical magnetic resonance imaging according to claim 2, characterized in that: A sliding groove (203) is provided on the inner side of the push rod (202), and a sliding block (301) is fixedly connected to the side of the lower portion of the support frame (3), and the sliding block (301) and the sliding groove (203) are in sliding connection.

4. The head fixation device for medical magnetic resonance imaging according to claim 3, characterized in that: The limiting assembly (4) comprises limiting blocks (401), the limiting blocks (401) being fixedly mounted on both sides of the support frame (3), a limiting groove (402) being provided inside the mounting groove (101), and the limiting blocks (401) and the limiting groove (402) being slidably connected.

5. The head fixation device for medical magnetic resonance imaging according to claim 4, characterized in that: There are two groups of limiting grooves (402) which are symmetrically arranged.

6. The head fixation device for medical magnetic resonance imaging according to claim 5, characterized in that: The limiting grooves (402) are arranged in an inclined manner, and the adjacent parts of the two groups of limiting grooves (402) are lower.

7. The head fixation device for medical magnetic resonance imaging according to claim 6, characterized in that: The buffer assembly (5) includes a damper (502), the lower end of the damper (502) is connected to the upper part of the support frame (3), the upper end of the damper (502) is connected to the lower part of the head pad (6), and a spring (501) is provided on the outer side of the damper (502), one end of the spring (501) is connected to the head pad (6), and the other end is connected to the support frame (3).

8. The head fixation device for medical magnetic resonance imaging according to claim 7, characterized in that: The adjacent surfaces of the two groups of head pads (6) are configured as arc-shaped groove structures, and the grooves are configured as a silicone material.

9. The head fixation device for medical magnetic resonance imaging according to claim 8, characterized in that: The examination bed body (1) and the upper part of the headrest (6) are covered with a rubber cushion (7).

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