Medical image detection head limiting device

Abstract

The utility model discloses a medical image detection head limiting device, include: base, the upper surface middle part is equipped with the positioning protrusion along the left and right direction extension, and the left and right sides are equipped with the side plate, the soft pad is equipped with the positioning recess with the positioning protrusion adaptation in the bottom, the sliding piece is installed in the base along the left and right direction horizontal sliding, and the two sliding piece upper end is equipped with the limit plate, the movable element has the clamping position state and the activity state, and the movable installation is in the sliding piece to realize the switching between the clamping position state and the activity state, when the clamping position state, the movable element is limited with the base cooperation, when the activity state, the movable element is with the base and removes the cooperation, the utility model discloses the limit plate of sliding piece upper end can be effective to the patient head from the left and right sides and limit, limit head in the left and right direction movement. Can significantly reduce the shaking of head in the examination process. The sliding piece is along the base left and right direction horizontal sliding, makes the position of limit plate can be according to the head size and shape of patient and carry out the flexible adjustment.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular, to a head restraint device for medical imaging detection. Background Technology

[0002] In medical imaging examinations, such as head CT scans, head stability is crucial for acquiring high-quality images. Traditional head immobilization devices typically employ simple head braces or straps. While these devices provide a degree of fixation, they have limitations in practical application. For example, in patients who are unconscious, children, or undergo prolonged examinations, these devices may not effectively restrict lateral head movement, leading to blurred images or artifacts, thus affecting diagnostic accuracy. Furthermore, existing head immobilization devices also have shortcomings in terms of applicability. Different patients have different head sizes and shapes, and traditional devices are often difficult to adjust flexibly, failing to meet diverse clinical needs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a head restraint device for medical imaging detection.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A head-limiting device for medical imaging detection includes: a base with a positioning protrusion extending in a left-right direction at the center of its upper surface and side plates on both sides; a soft pad with its bottom located between the side plates on both sides and a positioning groove adapted to the positioning protrusion at its bottom; two sliding members installed on the left and right sides of the base, sliding horizontally on the base in a left-right direction, with limiting plates located above the soft pad on opposite sides of the upper ends of the two sliding members; and a movable member having a locking state and an active state, movably installed on the sliding members to switch between the locking and active states; in the locking state, the movable member engages with the base to limit the movement of the corresponding sliding member away from the other sliding member; in the active state, the movable member disengages from the base to allow the corresponding sliding member to slide left and right.

[0006] Furthermore, the bottom of the positioning protrusion is provided with a sliding groove, and the sliding member includes a sliding rod, a rising rod and a horizontal rod. One end of the sliding rod is embedded in the sliding groove and slidably installed in the sliding groove, and the other end extends out of the base and is connected to the bottom of the rising rod. The horizontal rod is connected to the top of the rising rod, and the horizontal rods on the two sliding members extend from the top of the corresponding rising rod towards each other. The limiting plate is connected to the end of the corresponding horizontal rod away from the rising rod.

[0007] Furthermore, the top of the sliding groove is provided with a locking groove with a width smaller than the sliding groove, and the top wall of the locking groove is provided with limiting teeth. Two sets of limiting teeth are symmetrically arranged on the left and right sides along the central axis of the base, and the limiting teeth in the same set are evenly spaced in the left and right direction. The movable part has a hook that can engage two adjacent limiting teeth.

[0008] Furthermore, the limiting tooth has a hook inclined surface on one side facing the central axis of the base, and a first transition inclined surface on the other side; the lower end of the hook inclined surface is inclined towards the central axis of the base; the hook has a hook contact surface that can fit with the hook inclined surface, and a second transition inclined surface on the other side.

[0009] Furthermore, the movable part is hinged to the sliding rod in the middle, one end is connected to the hook, and the other end extends out into a sliding groove.

[0010] Furthermore, the sliding rod is provided with an upper opening mounting groove, the movable part is partially embedded in the mounting groove, and the end of the movable part extending out of the sliding groove is provided with a lever extending out of the mounting groove.

[0011] Furthermore, the rising rod has two limiting blocks spaced vertically on the side facing the movable part, and the lever is located between the two limiting blocks; when the lever abuts against the upper limiting block, the movable part is in an active state; when the lever abuts against the lower limiting block, the movable part is in a locked state.

[0012] Furthermore, an elastic element is installed between the movable component and the base, the elastic element being used to push the movable component from the active state to the locked state.

[0013] Furthermore, the elastic element is a compression spring installed between the bottom of the movable element away from the paddle and the bottom wall of the mounting groove. The movable element is provided with a first positioning protrusion for the upper end of the compression spring to be sleeved, and the bottom wall of the mounting groove is provided with a second positioning protrusion for the lower end of the compression spring to be sleeved.

[0014] Furthermore, a protective pad is fitted onto the limiting plate.

[0015] This utility model has the following beneficial effects:

[0016] By setting positioning protrusions on the base and cooperating with positioning grooves on the bottom of the pad, the stable placement of the pad is ensured. The pad effectively buffers the contact pressure between the head and the fixation device, reducing patient discomfort during fixation. The pad is also secured by the positioning protrusions and side plates, and can be detached directly from the base facing upwards for easy cleaning, disinfection, or replacement. Simultaneously, the limiting plate at the upper end of the slider effectively limits the patient's head movement from both sides, significantly reducing head sway during examination and effectively preventing image blurring or artifacts, thereby improving the quality of image detection and diagnostic accuracy. The slider slides horizontally along the base, allowing the position of the limiting plate to be flexibly adjusted according to the size and shape of the patient's head. This adjustability meets the clinical needs of different patients, ensuring good adaptability to various head sizes and avoiding patient discomfort or unstable fixation due to incompatible fixation devices. The switching between the locked and active states of the movable component makes adjustment convenient.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the decomposed state structure;

[0021] Figure 3 This is a schematic diagram of the connection structure between the sliding component and the moving component;

[0022] Figure 4 This is a schematic diagram of the structure at the bottom of the base;

[0023] Figure 5 This is a cross-sectional view of the card slot position;

[0024] Figure 6 yes Figure 5 Enlarged view of point A;

[0025] Figure 7 This is a cross-sectional view of the active state.

[0026] Legend:

[0027] Base 100, positioning protrusion 110, sliding groove 111, locking groove 112, side plate 120, limiting tooth 130, hook inclined surface 131, first transition inclined surface 132;

[0028] Soft pad 200, positioning groove 210;

[0029] Sliding component 300, limiting plate 310, protective pad 311, sliding rod 320, mounting groove 321, second positioning protrusion 322, rising rod 330, limiting block 331, horizontal rod 340;

[0030] Movable part 400, hook 410, hook surface 411, second transition slope 412, paddle block 420, compression spring 430, first positioning protrusion 440. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Please refer to Figure 1 and Figure 2A preferred embodiment of the present invention provides a head limiting device for medical imaging detection, comprising a base 100, a soft pad 200, a sliding member 300, and a movable member 400.

[0036] A positioning protrusion 110 extending in the left-right direction is provided in the middle of the upper surface of the base 100, and side plates 120 are provided on the left and right sides of the base 100. The positioning protrusion 110 is located in the middle of the base 100 in the front-back direction.

[0037] The bottom of the cushion 200 is located between the side panels 120 on both sides, thus limiting its position in the left and right directions. The bottom of the cushion 200 has a positioning groove 210 that matches the positioning protrusion 110, thereby limiting its position in the front and back directions. This ensures that the cushion 200 is stably positioned on the base 100 and is easy to disassemble and remove. The cushion 200 can be filled with elastic padding material (such as cotton or sponge), and the outside of the cushion 200 is covered with leather for easy cleaning. Of course, a disposable medical pad can also be placed on top of the cushion 200 during use.

[0038] Two sliding members 300 are provided and installed on the left and right sides of the base 100. The sliding members 300 are horizontally slidably installed on the base 100 in the left and right direction. On the opposite side of the upper end of the two sliding members 300, there are limiting plates 310 located above the soft pad 200, so as to limit the head in the left and right direction. The distance between the two limiting plates 310 can be slidably adjusted to accommodate people of different body types.

[0039] The movable component 400 has a locking state and an active state. It is movably mounted on the sliding component 300 to switch between the locking and active states. In the locking state, the movable component 400 engages with the base 100 to prevent the corresponding sliding component 300 from moving away from the other sliding component 300, thus preventing the distance between the two limiting plates 310 from increasing and losing its limiting effect during use. In the active state, the movable component 400 disengages from the base 100, allowing the corresponding sliding component 300 to slide left and right. The movable component 400 restricts the movement of the sliding component 300 away from the other sliding component 300, while the movable component 400 does not restrict the movement of the sliding component 300 towards the other sliding component 300.

[0040] In a preferred embodiment of this invention, a head-limiting device for medical imaging detection is provided. A positioning protrusion 110 is provided on the base 100, which, in conjunction with a positioning groove 210 at the bottom of the soft pad 200, ensures the stable placement of the soft pad 200. The soft pad 200 effectively buffers the contact pressure between the head and the fixation device, reducing patient discomfort during the fixation process. The soft pad 200 is fixed and limited by the positioning protrusion 110 and the side plate 120, and can be directly detached from the base 100 facing upwards for easy cleaning, disinfection, or replacement. Simultaneously, the limiting plate 310 at the upper end of the sliding member 300 effectively limits the patient's head from both sides, restricting head movement in the lateral direction. This significantly reduces head shaking during the examination, effectively avoiding image blurring or artifacts, thereby improving the quality of imaging detection and the accuracy of diagnosis. The sliding member 300 slides horizontally along the left and right directions of the base 100, allowing the position of the limiting plate 310 to be flexibly adjusted according to the size and shape of the patient's head. This adjustability meets the clinical needs of different patients, ensuring the device is well-adaptable to various head sizes and avoiding patient discomfort or instability caused by mismatched fixation devices. The switching between the locked and active states of the movable component 400 makes the sliding component 300 easy to operate during adjustment.

[0041] Reference Figure 2 In some embodiments of this utility model, the bottom of the positioning protrusion 110 is provided with a sliding groove 111. The positioning protrusion is relatively thick, with sufficient size to accommodate the sliding groove 111. The sliding member 300 includes a sliding rod 320, a rising rod 330, and a horizontal rod 340. One end of the sliding rod 320 is embedded in the sliding groove 111 and slidably mounted therein, while the other end extends out of the base 100 and connects to the bottom of the rising rod 330. The sliding rod 320 is adapted to the cross-sectional profile of the sliding groove 111, thereby providing stable sliding guidance. The horizontal rod 340 is connected to the top of the rising rod 330, and the horizontal rods 340 on the two sliding members 300 extend towards each other from the top of the corresponding rising rod 330. The limiting plate 310 is connected to the end of the corresponding horizontal rod 340 away from the rising rod 330. By embedding the sliding rod 320 into the sliding groove 111 of the base 100, stable sliding of the sliding member is achieved; the extension of the rising rod and the horizontal rod provides stable support for the limiting plate 310.

[0042] Reference Figure 2 , Figure 3 and Figure 4In a further embodiment of this utility model, the top of the sliding groove 111 is provided with a locking groove 112, the width of which is smaller than that of the sliding groove 111. The top wall of the locking groove 112 is provided with limiting teeth 130. Two sets of limiting teeth 130 are symmetrically arranged on the left and right sides along the central axis of the base 100, which is the center line of the base 100 in the left and right direction. The limiting teeth 130 in the same group are evenly spaced in the left and right direction. The movable part 400 has a hook 410 that can engage two adjacent limiting teeth 130. The limiting teeth 130 cooperate with the hooks 410 of the movable part 400 to achieve the limiting engagement between the movable part 400 and the base 100, thereby locking the position of the sliding part 300. This effectively prevents the sliding part 300 from accidentally moving outward due to external force or vibration, ensuring the stability of the head during the inspection process.

[0043] Reference Figure 5 and Figure 6 In a further embodiment of this utility model, the limiting tooth 130 has a hook inclined surface 131 on one side facing the central axis of the base 100, and a first transition inclined surface 132 on the other side; the lower end of the hook inclined surface 131 is inclined towards the central axis of the base 100; the hook 410 has a hook-fitting surface 411 that can fit with the hook inclined surface 131, and a second transition inclined surface 412 on the other side. The first transition inclined surface 132 of the limiting tooth 130 and the second transition inclined surface 412 of the hook 410 make the inward movement of the sliding member 300 possible without manual operation of the moving member 400. The hook 410 of the moving member 400 will automatically pass over the limiting tooth 130, making the inward pushing operation of the sliding member 300 more convenient. The inward movement of the sliding member 300 means the movement of the sliding member 300 towards the other sliding member 300. During patient use, the user's head only pushes the slider 300 outward, so the inward movement is not eliminated and does not affect the head's restraint. Therefore, an outward movement restraint is sufficient. The fit between the hook bevel 131 and the hook contact surface 411, with their lower ends inclined towards the central axis of the base 100, restricts the outward movement of the slider 300 when the movable part 400 is locked in place.

[0044] Understandably, in this invention, the limit constraint can be released by manually lifting the lever 420; in order to adapt to the testing environment, all parts are non-metallic, such as plastic parts.

[0045] Reference Figure 2 and Figure 3In a further embodiment of this utility model, the movable member 400 is hinged to the sliding rod 320 at its middle, one end is connected to the hook 410, and the other end extends into a sliding groove 111. The hinged connection of the movable member 400 to the sliding rod 320 allows the movable member 400 to flexibly switch between a locked state and an active state. The sliding groove 111 extending from one end of the movable member 400 facilitates manual operation of this side to switch the movable member 400 between active and passive states.

[0046] Reference Figure 2 and Figure 3 In a further embodiment of this utility model, the sliding rod 320 is provided with an upper open mounting groove 321, and the movable member 400 is partially embedded in the mounting groove 321. One end of the movable member 400 extending out of the sliding groove 111 is provided with a lever 420 extending out of the mounting groove 321. The lever 420 extending out of the sliding groove 111 allows medical personnel to easily switch the state of the movable member 400 by simply moving the lever 420, making the operation more intuitive and convenient. The mounting groove 321 facilitates the installation and accommodation of the movable member 400, making the overall structure more compact.

[0047] Reference Figure 3 In a further embodiment of this utility model, the rising rod 330 is provided with two limiting blocks 331 spaced vertically on the side facing the movable member 400, and the toggle block 420 is located between the two limiting blocks 331; see reference Figure 7 When the push block 420 abuts against the upper limit block 331, the movable part 400 is in an active state; refer to Figure 6 When the lever 420 abuts against the lower limiting block 331, the movable part 400 is in a locked state. The contact relationship between the lever 420 and the limiting block 331 provides clear physical feedback to medical personnel. When the lever 420 abuts against the upper limiting block 331, the movable part 400 is in an active state; when it abuts against the lower limiting block, the movable part 400 is in a locked state, allowing operators to intuitively judge the status of the device, reducing operational errors and improving the reliability of the device.

[0048] Reference Figure 5 and Figure 6 In a further embodiment of this utility model, an elastic element is installed between the movable member 400 and the base 100. The elastic element is used to push the movable member 400 from the active state to the locked state. This allows the movable member 400 to automatically reset to the locked state during operation, which not only reduces the number of operation steps but also improves the stability of the locked state, thus achieving stable limiting.

[0049] Reference Figure 5 and Figure 6In a further embodiment of this utility model, the elastic element is a compression spring 430 installed between the bottom of the movable member 400 away from the lever 420 and the bottom wall of the mounting groove 321. The movable member 400 is provided with a first positioning protrusion 440 for the upper end of the compression spring 430 to be sleeved, and the bottom wall of the mounting groove 321 is provided with a second positioning protrusion 322 for the lower end of the compression spring 430 to be sleeved. The compression spring 430 is limited by the first positioning protrusion 440 and the second positioning protrusion 322, ensuring the stable installation and reliable operation of the elastic element.

[0050] Reference Figure 2 In a further embodiment of this utility model, a protective pad 311 is fitted onto the limiting plate 310. The protective pad 311 can effectively buffer the contact pressure between the limiting plate 310 and the patient's head, reducing the patient's discomfort during the fixation process. It is especially suitable for children, patients with impaired consciousness, or patients undergoing prolonged examinations, enhancing the applicability and comfort of the device. The protective pad 311 can be fitted onto the limiting plate 310 for easy removal, cleaning, or replacement. Of course, during use, a disposable protective cover can also be placed over the protective pad 311 and the limiting plate 310 to keep the protective pad 311 clean.

[0051] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A head restraint device for medical imaging detection, characterized in that, include: The base (100) has a positioning protrusion (110) extending in the left and right direction in the middle of the upper surface, and side plates (120) on the left and right sides. The pad (200) has its bottom located between the side plates (120) on the left and right sides, and its bottom has a positioning groove (210) that matches the positioning protrusion (110). Two sliding members (300) are provided and installed on the left and right sides of the base (100). They are horizontally slidable on the base (100) in the left and right direction. A limiting plate (310) is provided on the opposite side of the upper end of the two sliding members (300) above the soft pad (200). The movable component (400) has a locking state and an active state, and is movably installed on the sliding component (300) to realize the switching between the locking state and the active state; in the locking state, the movable component (400) is limited to the base (100) to prevent the corresponding sliding component (300) from moving away from the other sliding component (300); in the active state, the movable component (400) is disengaged from the base (100) so that the corresponding sliding component (300) can slide left and right.

2. The head restraint device for medical imaging detection according to claim 1, characterized in that, The bottom of the positioning protrusion (110) is provided with a sliding groove (111). The sliding member (300) includes a sliding rod (320), a rising rod (330) and a horizontal rod (340). One end of the sliding rod (320) is embedded in the sliding groove (111) and slidably installed in the sliding groove (111). The other end extends out of the base (100) and is connected to the bottom of the rising rod (330). The horizontal rod (340) is connected to the top of the rising rod (330), and the horizontal rods (340) on the two sliding members (300) extend towards each other from the top of the corresponding rising rod (330). The limiting plate (310) is connected to the end of the corresponding horizontal rod (340) away from the rising rod (330).

3. The head restraint device for medical imaging detection according to claim 2, characterized in that, The top of the sliding groove (111) is provided with a locking groove (112) with a width smaller than that of the sliding groove (111). The top wall of the locking groove (112) is provided with limiting teeth (130). The limiting teeth (130) are symmetrically arranged in two sets along the central axis of the base (100). The limiting teeth (130) in the same set are evenly spaced in the left and right direction. The movable part (400) has a hook (410) that can engage two adjacent limiting teeth (130).

4. The medical imaging head restraint device according to claim 3, characterized in that, The limiting tooth (130) has a hook inclined surface (131) on one side facing the central axis of the base (100) and a first transition inclined surface (132) on the other side; the lower end of the hook inclined surface (131) is inclined towards the central axis of the base (100); the hook (410) has a hook contact surface (411) that can fit with the hook inclined surface (131) and a second transition inclined surface (412) on the other side.

5. The medical imaging head restraint device according to claim 3, characterized in that, The movable part (400) is hinged to the sliding rod (320) at the middle, one end is connected to the hook (410), and the other end extends out of the sliding groove (111).

6. The medical imaging head restraint device according to claim 5, characterized in that, The sliding rod (320) is provided with an upper opening mounting groove (321), the movable part (400) is partially embedded in the mounting groove (321), and the end of the movable part (400) extending out of the sliding groove (111) is provided with a lever (420) extending out of the mounting groove (321).

7. The medical imaging head restraint device according to claim 6, characterized in that, The rising rod (330) has two limiting blocks (331) spaced vertically on the side facing the movable part (400), and the lever (420) is located between the two limiting blocks (331); when the lever (420) abuts against the upper limiting block (331), the movable part (400) is in an active state; when the lever (420) abuts against the lower limiting block (331), the movable part (400) is in a locked state.

8. The head restraint device for medical imaging detection according to claim 6, characterized in that, An elastic element is installed between the movable part (400) and the base (100), and the elastic element is used to push the movable part (400) from the active state to the locked state.

9. The medical imaging head restraint device according to claim 8, characterized in that, The elastic element is a compression spring (430) installed between the bottom of the end of the movable element (400) away from the paddle (420) and the bottom wall of the mounting groove (321). The movable element (400) is provided with a first positioning protrusion (440) for the upper end of the compression spring (430) to be sleeved, and the bottom wall of the mounting groove (321) is provided with a second positioning protrusion (322) for the lower end of the compression spring (430) to be sleeved.

10. The medical imaging head restraint device according to claim 9, characterized in that, A protective pad (311) is fitted onto the limiting plate (310).

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