Sliding positioning device for head and neck nuclear magnetic resonance imaging coil

Abstract

The utility model discloses a head and neck nuclear magnetic resonance imaging coil sliding positioning device which comprises a base, a soft cushion is fixedly installed on the outer surface of the base, side supports are fixedly installed on the outer surface of the periphery of the base, a sliding block is installed on the outer surface of a guide rod in a sliding mode, and the sliding block is fixedly installed on the side supports. An elastic fixing mechanism is arranged between the guide rod and the base, and a patient can be automatically fixed during use through the elastic fixing mechanism. According to the head and neck nuclear magnetic resonance imaging coil sliding positioning device, the sliding block is pulled to slide in the direction of the guide rod, the sliding positioning rod is driven to move together, the fixed sliding base moves together, then a patient lies down, the guide rod is driven to press downwards through the gravity generated when the patient lies down and presses downwards, and the jacking sliding block moves in the side support; the fixed sliding base and the embedded positioning teeth are clamped with each other, the lower supporting plate is fixed, and the position can be adjusted only by slightly getting up and moving forwards or backwards when adjustment needs to be conducted again.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a head and neck magnetic resonance imaging coil sliding positioning device. Background Art

[0002] With the advancement of science and technology, medical technology has also improved, and medical equipment has also been updated with the development of technology. Medical equipment refers to instruments, equipment, appliances, materials and other items used for human body examinations, including home medical equipment. When performing MRI on the head, a MRI coil sliding positioning device is required to place the induction coil on the head and neck of the human body for induction to improve the image quality and the accuracy of diagnosis. The existing head and neck MRI coil sliding positioning device needs to use a sliding positioning device to fix the coil during use, but most of the existing sliding positioning devices are fixed with screws, which are very cumbersome and time-consuming to use and adjust. Utility Model Content

[0003] The utility model aims to provide a head and neck magnetic resonance imaging coil sliding positioning device to solve the problem that the sliding positioning device is inconvenient to adjust during measurement in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a head and neck magnetic resonance imaging coil sliding positioning device, comprising a base, a soft pad is fixedly installed on the outer surface of the base, and one side of the outer surface of the base is designed to be inclined, side brackets are fixedly installed on the outer surfaces of the base, and guide rods are slidably installed between the side brackets, a sliding block is slidably installed on the outer surface of the guide rod, and a sliding positioning rod is fixedly installed on the side of the sliding block close to the base, an elastic fixing mechanism is arranged between the guide rod and the base, and the patient is automatically fixed by the elastic fixing mechanism when using it.

[0005] Preferably, the elastic fixing mechanism includes: a pushing slider, which is slidably mounted on the end of the side bracket away from the base, and a first spring is arranged between the side bracket and the pushing slider, a guide rod is fixedly mounted between the pushing sliders, a fixed sliding base is fixedly mounted on the end of the sliding positioning rod away from the sliding block, and the fixed sliding base is slidably mounted inside the base, and inner positioning teeth are fixedly mounted on both sides of the base, the inner positioning teeth are engaged with the fixed sliding base, and the side surface of the fixed sliding base is in contact with the inner surface of the base.

[0006] By adopting the above technical solution, the coil is placed on the lower support plate, and then the patient lies down and places his neck or head on the lower support plate. As the patient lies down, the guide rod is pressed down, causing the push slider to be pressed down, causing the first spring to be compressed, driving the sliding positioning rod to squeeze the fixed sliding base, causing the fixed sliding base to engage with the inner positioning teeth, thereby fixing the longitudinal position of the sliding positioning device. When the position is not suitable, the patient can lift the fixed position and move it slightly and lie down again to fix it again, which is convenient for adjusting the sliding positioning device.

[0007] Preferably, the outer surface of the sliding positioning rod is provided with a snap-fit ​​positioning mechanism, and the height of the coil is adjusted by the snap-fit ​​positioning mechanism.

[0008] By adopting the above technical solution, the drag base plate can be pulled up to fix the drag base plate on the sliding positioning rod, thereby adjusting the height of the placed coil.

[0009] Preferably, the engaging positioning mechanism includes: a drag base plate, the outer surface of which is penetrated by a sliding positioning rod, and a groove is provided on the side surface of the sliding positioning rod, and the groove is triangular in design, the sliding positioning rod is slidably connected to the drag base plate, and an elastic plug plate is slidably installed on one side of the drag base plate, and the elastic plug plate is engaged with the groove.

[0010] By adopting the above technical solution, through the triangular design of the groove, the elastic plug plate can be ejected after the tow bottom plate is pulled up and retracted into the tow bottom plate, so that the tow bottom plate can directly pass through the groove. When adjusted to the required height, the elastic plug plate will engage with the groove to fix the tow bottom plate, so that when raising the tow bottom plate, it only needs to be pulled up, and the patient will not fall when lying down.

[0011] Preferably, a downward pressing positioning mechanism is provided inside the bottom plate, and the coil is positioned laterally by the downward pressing positioning mechanism.

[0012] By adopting the above technical solution, the lower support plate can be raised to make the sliding fixed plate rise together. After the lower support plate is adjusted to a suitable position, the lower support plate can be lowered to make the sliding fixed plate engage with the translation positioning teeth to adjust the position of the lower support plate.

[0013] Preferably, the downward-pressing positioning mechanism includes: a translational positioning tooth, which is arranged on a side of the drag base plate away from the sliding block, and a sliding fixing plate is slidably installed inside the drag base plate, and the sliding fixing plate is engaged with the translational positioning tooth, the side surface of the sliding fixing plate is in contact with the inner surface of the drag base plate, and the sliding fixing plate inside the drag base plate can move up and down, and a baffle is inserted on the side of the drag base plate away from the sliding block.

[0014] By adopting the above technical solution, when the patient lies down, the sliding fixing plate and the translation positioning teeth can be pressed together by the patient's own weight, and the lower supporting plate can be fixed by the weight of the patient lying down.

[0015] Preferably, a lower support plate is arranged between the sliding fixed plates, and a screw is fixedly installed on the outer surface of the lower support plate, and an upper cover plate is installed through the outer surface of the screw, and a second spring is arranged between the upper cover plate and the lower support plate, and a knob is threadedly installed on the outer surface of the screw, and the side surface of the knob is in contact with the upper cover plate.

[0016] By adopting the above technical solution, the upper cover plate can slide along the direction of the screw through the second spring, and the patient's head and the coil are clamped by the lower support plate and the upper cover plate. The clamping force is adjusted by the knob. When disassembling, the upper cover plate can be pushed out by the screw, and the clamped coil is fixed on the patient's head or neck during use.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the head and neck magnetic resonance imaging coil sliding positioning device:

[0018] 1. When adjusting the longitudinal position of the lower support plate, the sliding block can be directly pulled to slide along the direction of the guide rod, thereby driving the sliding positioning rod to move together, and the fixed sliding base to move together. Then, the patient lies down and the gravity of the patient's lying down presses down to drive the guide rod to move together in the side bracket, so that the fixed sliding base and the inner positioning teeth are engaged with each other to fix the lower support plate. When it is necessary to adjust again, just lift the guide rod, let the patient stand up slightly and push forward or pull back to adjust the position;

[0019] 2. By directly pulling the drag bottom plate, the drag bottom plate can be moved upward on the sliding positioning rod. Through the fit between the groove and the side surface of the elastic plug plate and the movement of the drag bottom plate, the elastic plug plate is retracted into the drag bottom plate, so that the drag bottom plate can only move upward, and the height of the lower support plate can be quickly adjusted;

[0020] 3. When the lateral position of the lower support plate needs to be adjusted, the medical staff only needs to press the bottom plate and lift the lower support plate to drive the sliding fixed plate to rise and move, so that the sliding fixed plate can be moved in the bottom plate. After adjusting to the appropriate position, the lower support plate can be put down and the translation positioning teeth and the sliding fixed plate can be engaged with each other by the weight of the patient to fix the position of the lower support plate, so that the position of the lower support plate can be adjusted quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the base and the lower support plate of the utility model;

[0022] Figure 2 This is a schematic diagram of the cutaway three-dimensional structure of the base and the internally embedded positioning teeth of the utility model;

[0023] Figure 3This is a schematic diagram of the cutaway three-dimensional structure of the base and the bottom plate of the utility model;

[0024] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the translation positioning tooth and the sliding fixing plate of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the lower support plate and the upper cover plate of the utility model;

[0026] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the sliding positioning rod and the bottom plate of the utility model.

[0027] In the figure: 1. base; 2. side bracket; 3. push slider; 4. first spring; 5. guide rod; 6. sliding block; 7. sliding positioning rod; 8. fixed sliding base; 9. inner positioning teeth; 10. groove; 11. bottom plate; 12. elastic plug plate; 13. translation positioning teeth; 14. sliding fixing plate; 15. lower support plate; 16. screw rod; 17. second spring; 18. upper cover plate; 19. knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a head and neck magnetic resonance imaging coil sliding positioning device, comprising a base 1, a cushion is fixedly installed on the outer surface of the base 1, and one side of the outer surface of the base 1 is inclined, a side bracket 2 is fixedly installed on the outer surface of the base 1, and a guide rod 5 is slidably installed between the side brackets 2, a sliding block 6 is slidably installed on the outer surface of the guide rod 5, and a sliding positioning rod 7 is fixedly installed on the side of the sliding block 6 close to the base 1, and an elastic fixing mechanism is arranged between the guide rod 5 and the base 1, and the elastic fixing mechanism is used to automatically adjust the position of the patient when using the patient. The fixed, elastic fixing mechanism includes: a push slider 3, the push slider 3 is slidably mounted on the end of the side bracket 2 away from the base 1, and a first spring 4 is arranged between the side bracket 2 and the push slider 3, a guide rod 5 is fixedly installed between the push slider 3, a fixed sliding base 8 is fixedly installed on the end of the sliding positioning rod 7 away from the sliding block 6, and the fixed sliding base 8 is slidably mounted inside the base 1, and both sides of the base 1 are fixedly mounted with inner positioning teeth 9, the inner positioning teeth 9 are engaged with the fixed sliding base 8, and the side surface of the fixed sliding base 8 is in contact with the inner surface of the base 1,

[0030] After the height adjustment of the lower support plate 15 is completed, the sliding block 6 can be pulled to move the sliding block 6 along the direction of the guide rod 5, driving the sliding positioning rod 7 and the fixed sliding base 8 to move, so that the fixed sliding base 8 slides along the bottom of the base 1, and then the patient is allowed to lie down and pillow on the lower support plate 15, and the guide rod 5 is driven downward by the patient's weight to make the top sliding block 3 slide in the side bracket 2, so that the first spring 4 is compressed, and at the same time, the fixed sliding base 8 is moved downward to engage with the inner positioning tooth 9, and the position of the sliding block 6 is fixed by the weight of the patient to position the lower support plate 15. When adjustment is needed, it is only necessary to lift the guide rod 5 to disengage the fixed sliding base 8 from the inner positioning tooth 9, and then the patient can be allowed to move slightly to adjust the position.

[0031] The outer surface of the sliding positioning rod 7 is provided with a snap-fit ​​positioning mechanism, and the height of the coil is adjusted by the snap-fit ​​positioning mechanism. The snap-fit ​​positioning mechanism includes: a drag base plate 11, the outer surface of the drag base plate 11 is penetrated by the sliding positioning rod 7, and a groove 10 is opened on the side surface of the sliding positioning rod 7, and the groove 10 is triangular in design, the sliding positioning rod 7 and the drag base plate 11 are slidably connected, and an elastic plug plate 12 is slidably installed on one side of the drag base plate 11, and the elastic plug plate 12 is snapped with the groove 10.

[0032] When the height of the lower support plate 15 needs to be adjusted, it is only necessary to pull up the drag base plate 11 to drive the lower support plate 15 to rise, so that the drag base plate 11 slides along the direction of the sliding positioning rod 7, so that the elastic plug plate 12 fitted with the groove 10 is pushed into the drag base plate 11, and when the drag base plate 11 reaches the required position, it can be stopped, and the elastic plug plate 12 is engaged with the groove 10 to fix the height of the drag base plate 11 and fix the lower support plate 15. When the lower support plate 15 needs to be lowered, it is only necessary to pull the elastic plug plate 12 to put down the drag base plate 11, so that the lower support plate 15 can be quickly lifted and adjusted without falling.

[0033] A downward positioning mechanism is provided inside the drag base plate 11, and the coil is positioned laterally by the downward positioning mechanism. The downward positioning mechanism includes: a translation positioning tooth 13, the translation positioning tooth 13 is opened on the side of the drag base plate 11 away from the sliding block 6, and a sliding fixing plate 14 is slidably installed inside the drag base plate 11, and the sliding fixing plate 14 is engaged with the translation positioning tooth 13, the side surface of the sliding fixing plate 14 is in contact with the inner surface of the drag base plate 11, and the sliding fixing plate 14 inside the drag base plate 11 can move up and down, and a baffle is inserted on the side of the drag base plate 11 away from the sliding block 6.

[0034] The weight of the lower support plate 15 pressing down can make the translation positioning teeth 13 engage with the sliding fixing plate 14 to fix the lateral position of the lower support plate 15. When the lateral position of the lower support plate 15 needs to be adjusted, it is only necessary to press down the drag base plate 11 to keep the drag base plate 11 in position, and then the lower support plate 15 can be lifted up, so that the lower support plate 15 drives the sliding fixing plate 14 to rise, so that the translation positioning teeth 13 and the sliding fixing plate 14 are disengaged, and then the lower support plate 15 can be slightly moved, which is convenient for adjusting the lateral position of the lower support plate 15.

[0035] A lower support plate 15 is arranged between the sliding fixed plates 14, and a screw rod 16 is fixedly installed on the outer surface of the lower support plate 15, and an upper cover plate 18 is installed through the outer surface of the screw rod 16, and a second spring 17 is arranged between the upper cover plate 18 and the lower support plate 15, and a knob 19 is threadedly installed on the outer surface of the screw rod 16, and the side surface of the knob 19 is in contact with the upper cover plate 18.

[0036] The coil is placed on the lower support plate 15, and then the patient's neck or head is placed on the lower support plate 15. The upper cover plate 18 is then inserted into the screw 16, and then the knob 19 is screwed on. The upper cover plate 18 is supported by the second spring 17, and the coil is placed in the upper cover plate 18. Then, the knob 19 is tightened to fix the coil to prevent the coil from falling.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head and neck magnetic resonance imaging coil sliding positioning device, comprising a base (1), a cushion fixedly mounted on the outer surface of the base (1), and an outer surface of one side of the base (1) is designed to be inclined, side brackets (2) fixedly mounted on the outer surfaces of the four sides of the base (1), and guide rods (5) slidably mounted between the side brackets (2), a sliding block (6) slidably mounted on the outer surface of the guide rod (5), and a sliding positioning rod (7) fixedly mounted on the side of the sliding block (6) close to the base (1), characterized in that: An elastic fixing mechanism is provided between the guide rod (5) and the base (1), and the elastic fixing mechanism enables the patient to automatically fix the device when using the device.

2. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 1, characterized in that: The elastic fixing mechanism comprises: a push slider (3), the push slider (3) is slidably mounted on the end of the side bracket (2) away from the base (1), and a first spring (4) is provided between the side bracket (2) and the push slider (3), a guide rod (5) is fixedly mounted between the push slider (3), a fixed sliding base (8) is fixedly mounted on the end of the sliding positioning rod (7) away from the sliding block (6), and the fixed sliding base (8) is slidably mounted inside the base (1), and inner positioning teeth (9) are fixedly mounted on both sides of the base (1), the inner positioning teeth (9) are engaged with the fixed sliding base (8), and the side surface of the fixed sliding base (8) is in contact with the inner surface of the base (1).

3. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 1, characterized in that: The outer surface of the sliding positioning rod (7) is provided with a snap-fit ​​positioning mechanism, and the height of the coil is adjusted by the snap-fit ​​positioning mechanism.

4. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 3, characterized in that: The engaging and positioning mechanism comprises: a bottom plate (11), the outer surface of the bottom plate (11) is penetrated by a sliding positioning rod (7), and a groove (10) is provided on the side surface of the sliding positioning rod (7), and the groove (10) is triangular in design, the sliding positioning rod (7) and the bottom plate (11) are slidably connected, and an elastic plug plate (12) is slidably installed on one side of the bottom plate (11), and the elastic plug plate (12) is engaged with the groove (10).

5. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 4, characterized in that: A downward pressing positioning mechanism is arranged inside the bottom plate (11), and the coil is positioned laterally by the downward pressing positioning mechanism.

6. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 5, characterized in that: The downward pressing positioning mechanism comprises: a translation positioning tooth (13), the translation positioning tooth (13) is arranged on a side of the drag base plate (11) away from the sliding block (6), and a sliding fixing plate (14) is slidably installed inside the drag base plate (11), and the sliding fixing plate (14) is engaged with the translation positioning tooth (13), the side surface of the sliding fixing plate (14) is in contact with the inner surface of the drag base plate (11), and the sliding fixing plate (14) inside the drag base plate (11) can move up and down, and a baffle is inserted on the side of the drag base plate (11) away from the sliding block (6).

7. The head and neck magnetic resonance imaging coil sliding positioning device according to claim 6, characterized in that: A lower support plate (15) is arranged between the sliding fixed plates (14), and a screw rod (16) is fixedly installed on the outer surface of the lower support plate (15), and an upper cover plate (18) is installed through the outer surface of the screw rod (16), and a second spring (17) is arranged between the upper cover plate (18) and the lower support plate (15), and a knob (19) is threadedly installed on the outer surface of the screw rod (16), and the side surface of the knob (19) is in contact with the upper cover plate (18).

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