An adjustable body position pad for use in magnetic resonance examinations

Abstract

The utility model relates to a kind of adjustable body position pad for nuclear magnetic examination body position, comprising: body position pad ontology, body position pad ontology is wedge type;A pair of arm placing grooves, a pair of arm placing grooves are symmetrically arranged on the upper end surface of body position pad ontology;A pair of straps, a pair of straps are respectively arranged on the two sides of body position pad ontology, for fixing the forearm or wrist of examinee placed in a pair of arm placing grooves.The utility model provides a kind of adjustable body position pad for nuclear magnetic examination body position, the arm of the examinee is lifted by this body position pad, prevent arm to hang in air, when nuclear magnetic MR scanning, bring better comfort to examinee.For the forearm of conscious examinee, it can be placed on the arm placing groove above head by oneself, but for the forearm of unconscious examinee, it can be bound on the arm placing groove by strap.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustable positioning pad for MRI examination. Background Technology

[0002] During MRI scans, patients often need to raise their hands overhead and maintain this position for an extended period to avoid artifacts in the imaging area. Current methods involve placing surgical scarves under the elbows, wrists, or shoulders of patients who cannot cooperate, or simply placing their hands at their sides, to allow them to complete the examination in a more comfortable position.

[0003] Because everyone's physical condition is different, the padding often cannot provide the optimal height. The examinee often cannot cooperate throughout the long examination process, which affects the examination images. Secondly, if the hands are not placed at the sides of the body or raised on the shoulders, there will be large artifacts in the images, and sometimes it is impossible to make an accurate diagnosis in clinical practice. Utility Model Content

[0004] The purpose of this invention is to overcome at least one of the defects in the prior art by providing an adjustable positioning pad for MRI examinations. This pad supports the patient's raised arm, preventing it from dangling in the air and providing better comfort during MRI scans. For conscious patients, the arm can be placed in the arm placement slot above the head; however, for patients who are unconscious (e.g., under anesthesia), a strap can be used to secure the forearm or wrist to the arm placement slot.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An adjustable positioning pad for MRI examination includes:

[0007] The body positioning pad is wedge-shaped;

[0008] A pair of arm placement slots, the pair of arm placement slots being symmetrically arranged on the upper end surface of the positioning pad body;

[0009] A pair of straps, respectively located on both sides of the body of the positioning pad, are used to fix the forearm or wrist of the examinee placed in the pair of arm placement slots.

[0010] Furthermore, the ends of the pair of straps are provided with Velcro.

[0011] Furthermore, the body positioning pad includes a first support plate, a second support plate, and an angle adjustment component;

[0012] The angle adjustment component includes:

[0013] A rotating shaft, one side of which is fixedly connected to the second support plate;

[0014] And sequentially fitted onto the rotating shaft:

[0015] A support member is rotatably connected to the rotating shaft, and the support member has a handle end that is fixedly connected to the first support plate.

[0016] A ratchet, the ratchet including a ratchet body fixedly connected to the rotating shaft, and ratchet teeth provided on the side of the ratchet body;

[0017] The pawl has one end elastically connected to the handle end of the support member, and the other end meshing with the ratchet teeth on the ratchet wheel.

[0018] Furthermore, a movable disc is also sleeved on the rotating shaft. The movable disc includes a movable disc body sleeved on the rotating shaft and a fan-shaped limiting area arranged circumferentially along the movable disc body. A limiting groove is provided on the fan-shaped limiting area, and a limiting protrusion is provided on the ratchet. The limiting protrusion is located in the limiting groove.

[0019] Furthermore, the movable disc body is also provided with a weight reduction groove.

[0020] Furthermore, the outer edge of the fan-shaped limiting area is also provided with a slot 21 for limiting the front end of the pawl.

[0021] Furthermore, the ratchet has a pair of first through holes arranged circumferentially, and the shaft has a pair of second through holes arranged. The ratchet and the shaft are fixed by inserting pins into the first and second through holes.

[0022] Furthermore, the ratchet is also provided with a movable disc limiting block, which is located on the opposite side of the ratchet tooth. The movable disc limiting block, the ratchet tooth, and the pin together constitute a movable disc limiting area, and the movable disc is located in the movable disc limiting area.

[0023] Furthermore, a spring is provided between one end of the pawl and the handle end of the support member to connect the two.

[0024] Furthermore, the first support plate and the second support plate are covered with a layer of gelatin sponge.

[0025] Furthermore, the angle adjustment range between the first support plate and the second support plate is 0 to 45°.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] (1) This utility model provides an adjustable positioning pad for MRI examination. The positioning pad supports the patient's raised arm to prevent the arm from hanging in the air, thus providing better comfort during MRI scans. For conscious patients, the arm can be placed on the arm placement slot above the head by the patient. However, for patients who are not fully conscious (such as those under anesthesia), the forearm or wrist can be tied to the arm placement slot using a strap.

[0028] (2) This utility model provides an adjustable positioning pad for MRI examination. The pad consists of a first support plate, a second support plate, and an angle adjustment component, and can be flexibly adjusted between 0 and 45°. Different patients have different body types, physical conditions, and examination needs. This adjustable design can meet diverse examination positioning requirements, improve patient comfort during MRI examination, and ensure the smooth conduct of the examination.

[0029] (3) This utility model provides an adjustable positioning pad for MRI examinations. The first and second support plates of the positioning pad are covered with a layer of gelatin sponge, which is soft and has good cushioning properties. On the one hand, it can provide comfortable support for the patient's body and reduce the pressure of hard support plates on the body; on the other hand, the gelatin sponge has excellent breathability, which allows it to dry quickly for patients who are prone to sweating during long examinations, without affecting the examinations of subsequent patients, and also extends the service life of the examination mattress. Moreover, the gelatin sponge layer has strong water absorption, which can quickly absorb any leakage of contrast agent or liquid dripping during the examination, avoiding sticky discomfort for the patient. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the adjustable positioning pad used for MRI examination in Example 1;

[0031] Figure 2 This is a front view of the adjustable positioning pad used for MRI examination in Example 1;

[0032] Figure 3 This is a side view of the adjustable positioning pad used for MRI examination in Example 1;

[0033] Figure 4 This is a side view of the adjustable positioning pad used for MRI examination in Example 2;

[0034] Figure 5 This is a partial exploded view of the adjustable positioning pad used for MRI examination in Example 2;

[0035] Figure 6 This is a partial view of the adjustable positioning pad used for MRI examination in Example 2;

[0036] Figure 7 This is a schematic diagram of the ratchet in Example 2;

[0037] Figure 8 This is a schematic diagram of the movable disk in Example 2;

[0038] The numbers in the diagram indicate: 1-positioning pad body; 2-arm placement slot; 3-strap; 4-support component; 5-ratchet; 6-pin; 7-movable disc; 8-second support plate; 9-pin; 10-pawl; 11-spring; 12-rotating shaft; 13-first support plate; 14-limiting protrusion; 15-ratchet; 16-second through hole; 17-movable disc limiting block; 18-first through hole; 19-weight reduction groove; 20-limiting groove; 21-slot. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0040] Example 1

[0041] This embodiment provides an adjustable positioning pad for MRI examination positioning; see the specific structure below. Figure 1-3 The device includes: a positioning pad body 1, which is wedge-shaped; a pair of arm placement slots 2, which are symmetrically arranged on the upper surface of the positioning pad body 1; and a pair of straps 3, which are respectively located on both sides of the positioning pad body 1 for securing the forearm or wrist of the examinee placed in the arm placement slots 2. The ends of the straps 3 are provided with Velcro.

[0042] When in use, the positioning pad supports the patient's raised arm to prevent it from dangling in the air, providing better comfort during MRI scans. For conscious patients, the arm can be placed on the arm placement slot above the head. However, for patients who are not fully conscious (e.g., under anesthesia), the forearm or wrist can be secured to the arm placement slot using strap 3.

[0043] Example 2

[0044] This embodiment provides an adjustable positioning pad for MRI examination positioning; see the specific structure below. Figure 4-8The device includes: a positioning pad body 1, which is wedge-shaped; a pair of arm placement slots 2, which are symmetrically arranged on the upper surface of the positioning pad body 1; and a pair of straps 3, which are respectively located on both sides of the positioning pad body 1 for securing the forearm or wrist of the examinee placed in the arm placement slots 2. The ends of the straps 3 are provided with Velcro.

[0045] In this embodiment, the body positioning pad 1 includes a first support plate 13, a second support plate 8, and an angle adjustment component. The angle adjustment component is made of anti-magnetic material and can adjust and fix the angle according to different body weights and the degree of restriction on the shoulders and arms. Since the material is not the focus of this embodiment, it will not be described in detail here.

[0046] The angle adjustment assembly includes: a rotating shaft 12, one side of which is fixedly connected to the second support plate 8; and a support member 4, which is rotatably connected to the rotating shaft 12 and has a handle end fixedly connected to the first support plate 13; a ratchet 5, which includes a ratchet body fixedly connected to the rotating shaft 12 and ratchet teeth 15 disposed on the side of the ratchet body; and a pawl 10, one end of which is elastically connected to the handle end of the support member 4 and the other end of which is engaged with the ratchet teeth on the ratchet 5.

[0047] In this embodiment, a movable disk 7 is also sleeved on the rotating shaft 12. The movable disk 7 includes a movable disk body sleeved on the rotating shaft 12 and a fan-shaped limiting area arranged circumferentially along the movable disk body. A limiting groove 20 is provided on the fan-shaped limiting area, and a limiting protrusion 14 is provided on the ratchet 15. The limiting protrusion 14 is located in the limiting groove 20.

[0048] In this embodiment, a slot 21 is also provided on the outer edge of the fan-shaped limiting area to limit the front end of the pawl 10.

[0049] In this embodiment, the ratchet 5 has a pair of first through holes 18 arranged circumferentially, and the rotating shaft 12 has a pair of second through holes 16 arranged circumferentially. The ratchet 5 and the rotating shaft 12 are fixed by inserting pins 6 into the first through holes 18 and the second through holes 16.

[0050] In this embodiment, the ratchet 5 is further provided with a movable disc limiting block 17, which is located on the opposite side of the ratchet 15. The movable disc limiting block 17, the ratchet 15, and the pin 6 together constitute a movable disc limiting area, and the movable disc 7 is located in the movable disc limiting area.

[0051] In this embodiment, a spring 11 is provided between one end of the pawl 10 and the handle end of the support member 4 to connect the two.

[0052] In this embodiment, the first support plate 13 and the second support plate 8 are covered with a layer of gelatin sponge. The gelatin sponge layer is soft and has good cushioning properties, providing comfortable support for the patient's body and reducing the pressure from the hard support plate. In addition, the gelatin sponge has excellent breathability, allowing it to dry quickly for patients who sweat easily during long examinations, preventing interference with subsequent patients' examinations and extending the lifespan of the examination mattress. Furthermore, the gelatin sponge layer has strong water absorption, quickly absorbing any contrast agent leakage or liquid dripping during the examination, preventing sticky discomfort for the patient.

[0053] In this embodiment, the angle adjustment range between the first support plate 13 and the second support plate 8 is 0 to 45°. The adjustable design of 0 to 45° can meet the diverse examination position requirements and improve the patient's comfort during the MRI examination. For example, examinees with frozen shoulder or other patients who cannot raise their arms too much cannot raise their arms to a large angle, ensuring that the examination is carried out smoothly.

[0054] The positioning pad provided in this embodiment is highly elastic, meeting the needs of people of different weights and conforming more closely to the physiological curves of the examinee, resulting in a comfortable examination experience. Its excellent support adapts to various postures, and the angle adjustment provides different height assistance for individuals with varying degrees of shoulder injuries, further enhancing examination comfort. The positioning pad body 1 has Velcro straps 3 on both sides to secure the examinee's forearm or wrist, providing external support and reducing the examinee's own effort in maintaining the position without constricting the skin. The gelatin sponge is highly breathable, allowing patients who sweat easily during prolonged examinations to dry quickly without affecting subsequent patients' examinations, and extending the lifespan of the examination mattress. The surface gelatin sponge layer has strong water absorption, quickly absorbing contrast agent leakage or liquid drips during the examination, preventing a sticky feeling for the patient. Furthermore, the gelatin sponge layer is safe for sensitive individuals and will not cause skin allergies.

[0055] The angle adjustment component works as follows:

[0056] When the first support plate 13 is in its highest position, the ratchet 5 of the first support plate 13 is in its lowest position. The limiting protrusion 14 of the ratchet 5 is located at the top of the limiting groove 20, and the front end of the pawl 10 is in contact with the arc-shaped ratchet tooth 15. When it is necessary to adjust the angle of the first support plate 13, gently press the front end of the first support plate 13 to make the first support plate 13 rotate around the rotating shaft 12 by a certain angle. At this time, since the pawl 10 and the first support plate 13 are connected by the pin 9, the first support plate 13 drives the pawl 10 to move. The front end of the pawl 10 disengages from the engagement of the arc-shaped ratchet tooth 15, rotates around the shaft, and enters the second position. At the same time, under the action of the spring 11, the end of the pawl 10 is pressed tightly against the ratchet tooth 15 of the ratchet 5 and re-engages. In this process, the first support plate 13 completes the angle adjustment of one position. Repeat the above actions to adjust the angle of the first support plate 13 until the first support plate 13 is in a vertical position.

[0057] When the first support plate 13 continues to press down until the limiting protrusion 14 of the ratchet 5 is at the bottom of the limiting groove 20, the front end of the pawl 10 has also disengaged from the ratchet 5, is in contact with the edge of the fan-shaped limiting area of ​​the movable disk, and passes over the slot 21; at this time, the first support plate 13 is rotated outward, and the first support plate 13 drives the pawl 10 to rotate around the axis, and the front end of the pawl 10 slides along the edge of the fan-shaped limiting area of ​​the movable disk 7 and re-enters the slot 21. When the first support plate 13 continues to rotate outward, the front end of the pawl 10 can push the movable disk 7 to rotate around the axis due to the limiting effect of the slot 21, and the front end of the pawl 10 passes over each ratchet tooth of the ratchet 5. At this time, the first support plate 13 can be stopped from rotating downward at any time, and the front end of the pawl 10 will re-engage with the ratchet tooth 15, so that the entire angle adjustment mechanism is at a certain angle. When the movable disc 7 reaches its limit position outward, that is, when the limiting protrusion 14 of the ratchet 5 is at the top of the limiting groove 20, the movable disc 7 stops rotating; at this time, the front end of the pawl 10 continues to be pushed by the first support plate 13, disengages from the slot 21, and continues to slide along the edge of the fan-shaped limiting area of ​​the movable disc 7. When the front end of the pawl 10 slides off the surface of the movable disc 7, the front end of the pawl 10 has passed over each ratchet tooth of the ratchet 5 and reached the lowest position of the ratchet 5, that is, the arc-shaped ratchet tooth. At this time, the first support plate 13 is at the maximum angle position.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An adjustable positioning pad for MRI examination, characterized in that, include: The body of the positioning pad (1) is wedge-shaped; A pair of arm placement slots (2) are symmetrically arranged on the upper end face of the body pad (1); A pair of straps (3) are respectively located on both sides of the body of the positioning pad (1) for fixing the forearm or wrist of the examinee placed in the pair of arm placement slots (2).

2. The adjustable positioning pad for MRI examination as described in claim 1, characterized in that, The ends of the pair of straps (3) are provided with Velcro.

3. An adjustable positioning pad for MRI examination as described in claim 1, characterized in that, The body positioning pad (1) includes a first support plate (13), a second support plate (8), and an angle adjustment component; The angle adjustment component includes: A rotating shaft (12) is fixedly connected to the second support plate (8) on one side; And sequentially fitted onto the rotating shaft (12): Support member (4), the support member (4) is rotatably connected to the rotating shaft (12), the support member (4) has a handle end, the handle end is fixedly connected to the first support plate (13); Ratchet (5), the ratchet (5) includes a ratchet body fixedly connected to the rotating shaft (12), and ratchet teeth (15) provided on the side of the ratchet body; A pawl (10) is elastically connected at one end to the handle end of the support member (4) and at the other end to mesh with the ratchet teeth on the ratchet wheel (5).

4. An adjustable positioning pad for MRI examination as described in claim 3, characterized in that, The rotating shaft (12) is also fitted with a movable disk (7), which includes a movable disk body fitted on the rotating shaft (12) and a fan-shaped limiting area arranged along the circumference of the movable disk body; The fan-shaped limiting area is provided with a limiting groove (20), and the ratchet (15) is provided with a limiting protrusion (14), which is located in the limiting groove (20).

5. An adjustable positioning pad for MRI examination as described in claim 4, characterized in that, The outer edge of the fan-shaped limiting area is also provided with a slot (21) for limiting the front end of the pawl (10).

6. An adjustable positioning pad for MRI examination as described in claim 3, characterized in that, The ratchet (5) has a pair of first through holes (18) arranged in the circumferential direction, and the shaft (12) has a pair of second through holes (16) arranged in the circumferential direction. The ratchet (5) and the shaft (12) are fixed by inserting pins (6) into the first through holes (18) and the second through holes (16).

7. An adjustable positioning pad for MRI examination as described in claim 6, characterized in that, The ratchet (5) is also provided with a movable disc limiting block (17), which is located on the opposite side of the ratchet (15). The movable disc limiting block (17), the ratchet (15), and the pin (6) together constitute the movable disc limiting area, and the movable disc (7) is located in the movable disc limiting area.

8. An adjustable positioning pad for MRI examination as described in claim 3, characterized in that, A spring (11) is provided between one end of the pawl (10) and the handle end of the support (4) to connect the two.

9. An adjustable positioning pad for MRI examination as described in claim 3, characterized in that, The first support plate (13) and the second support plate (8) are covered with a layer of gelatin sponge.

10. An adjustable positioning pad for MRI examination as described in claim 3, characterized in that, The angle adjustment range between the first support plate (13) and the second support plate (8) is 0 to 45°.

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