Device for knee joint magnetic resonance examination

Abstract

The utility model is applicable to the technical field of medical auxiliary instruments, and provides a device for knee joint magnetic resonance examination, which comprises a base, a bayonet is arranged at the bottom of the base, and the bayonet can be sleeved on a nuclear magnetic resonance bed; the lower ring is installed on the top of the base in a sliding mode, and the lower ring is used for supporting the legs of a patient; the upper ring is hinged to the lower ring, and the upper ring and the lower ring form a complete knee joint coil; the mounting plate is fixed on the upper ring, and a limiting sleeve is mounted on the mounting plate in a sliding manner. The device for knee joint magnetic resonance examination provided by the scheme is convenient to assemble and disassemble, so that the legs of a patient can be stabilized conveniently, and meanwhile, the use safety is relatively high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical auxiliary instrument, especially relates to a device for knee joint magnetic resonance examination. BACKGROUND

[0002] In the knee joint magnetic resonance examination, the patient needs to lie on the magnetic resonance examination bed, and the knee joint is maintained in the same state for a certain time, so that the stability of the knee joint angle of the patient cannot be guaranteed, and after the knee joint coil is sleeved on the knee joint of the patient, the movement of the leg of the patient can be limited, but the rotation of the foot of the patient will also affect the angle of the knee joint, so that the accuracy of the examination result cannot be guaranteed. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a device for knee joint magnetic resonance examination, aims at solving the problem that the stability of the knee joint angle of the patient cannot be guaranteed during the nuclear magnetic resonance detection.

[0004] To solve the above problems, the utility model is realized in this way, a device for knee joint magnetic resonance examination, including: base, the bottom of base is equipped with the bayonet, the bayonet can be sleeved on the nuclear magnetic resonance bed, lower ring, the lower ring is slidably installed on the top of the base, the lower ring is used for supporting the leg of the patient, upper ring, the upper ring is hinged on the lower ring, the upper ring and the lower ring form complete knee joint coil, mounting plate, the mounting plate is fixed on the upper ring, the mounting plate is slidably installed with the limiting sleeve, clamping plate, the clamping plate is fixed on the lower ring, the limiting sleeve can be sleeved outside the clamping plate, limiting assembly, the limiting assembly is arranged on the base, and the limiting assembly is used for stabilizing the foot of the patient.

[0005] Preferably, the limiting assembly includes an adjusting seat, two limiting plates, a threaded rod and an adjusting block, the adjusting seat is detachably installed on the lower ring, the two limiting plates are slidably installed on the adjusting seat, the threaded rod is rotatably installed in the adjusting seat, the two limiting plates are threadedly sleeved on the threaded rod, and the adjusting block is fixed on the threaded rod.

[0006] Preferably, two extension rods are installed on the adjusting seat, two baffle plates are installed on the two extension rods, the two baffle plates are in contact with the lower ring, two limiting openings are arranged on the lower ring, the two extension rods extend through the two limiting openings to the side of the lower ring away from the limiting assembly, first threaded sections are arranged on the two extension rods, and nuts are threadedly installed on the two first threaded sections.

[0007] Preferably, the threaded rod is provided with a second threaded section with opposite screw direction, and the two limiting plates are respectively located on the two second threaded sections.

[0008] Preferably, the top of the mounting plate is provided with a sliding groove, and a sliding block is fixed in the sliding groove and fixedly connected with the inner wall of the top of the limiting sleeve.

[0009] Preferably, the bottom of the clamping plate and the clamping hole are both provided with anti-skid pads, and the base is hingedly provided with handles on both sides.

[0010] Preferably, the base, the lower ring, the upper ring, the mounting plate, the clamping plate, the limiting sleeve, the sliding block, the two extension rods, the adjusting seat, the two limiting plates, the threaded rod, the adjusting block, the two nuts, the two handles, the two blocking pieces and the two first threaded sections are all made of plastic material, and the lower ring and the upper ring are both provided with protective pads on the side close to each other.

[0011] Compared with the related art, the device for knee joint magnetic resonance examination has the following beneficial effects:

[0012] Compared with the prior art, the device for knee joint magnetic resonance examination provided by the present application can preliminarily limit the patient's leg by setting the lower ring in cooperation with the upper ring, limit the angle of the patient's angle by setting the limiting assembly, keep the angle of the patient's knee joint relatively stable, increase the accuracy of the detection result, disassemble the limiting assembly by disassembling the nut, rotate the threaded rod by rotating the adjusting block, adjust the distance between the two limiting plates, and limit the feet of different widths. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view structural schematic diagram of the device for knee joint magnetic resonance examination provided by the present application;

[0014] Figure 2 is an enlarged structural schematic diagram of part A shown in Figure 1

[0015] Figure 3 is a three-dimensional structural schematic diagram of the limiting assembly in the present application;

[0016] Figure 4 is a three-dimensional structural schematic diagram of the mounting plate, the clamping plate and the limiting sleeve in the present application.

[0017] ​Reference numerals in the attached diagram: 1. Base; 2. Lower ring; 3. Upper ring; 4. Protective pad; 5. Anti-slip pad; 6. Mounting plate; 7. Clamping plate; 8. Limiting sleeve; 9. Extension rod; 10. Adjusting seat; 11. Limiting plate; 12. Threaded rod; 13. Adjusting block; 14. Nut; 15. Handle; 16. Baffle plate; 17. First threaded section. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model provides a device for knee joint magnetic resonance imaging examination, such as... Figures 1-4 As shown, the device for knee joint MRI examination includes: a base 1, the bottom of which has a latch for mounting on an MRI bed; a lower ring 2, which is slidably mounted on the top of the base 1 and supports the patient's leg; an upper ring 3, which is hinged to the lower ring 2, forming a complete knee joint coil; a mounting plate 6, which is fixed to the upper ring 3, and a limiting sleeve 8 is slidably mounted on the mounting plate 6; a locking plate 7, which is fixed to the lower ring 2, and the limiting sleeve 8 can be fitted over the locking plate 7; and a limiting component, which is disposed on the base 1 and stabilizes the patient's foot.

[0021] In this embodiment, the design of the bayonet is used to directly fit on the magnetic resonance examination bed, ensuring that the entire examination device is firmly fixed in the examination environment, providing a stable foundation for subsequent leg support and limiting, and simplifying the installation process through the bayonet design, while improving the stability during the examination process, reducing the interference of external factors on the examination results, the lower ring 2 is used to support the patient's legs, this design allows fine-tuning according to the patient's body size and comfort to adapt to the needs of different patients, the upper ring 3 is hinged to the lower ring 2, and the two are combined to form a complete knee coil, which is fitted around the patient's knee, this design not only ensures the integrity of the coil, but also facilitates adjustment according to the actual position of the patient's knee, and by adjusting the position of the limiting sleeve 8, the limiting combination of the lower ring 2 and the upper ring 3 can be realized.

[0022] In further preferred embodiments of the utility model, the limiting assembly includes an adjusting seat 10, two limiting plates 11, a threaded rod 12 and an adjusting block 13, the adjusting seat 10 is detachably installed on the lower ring 2, both the limiting plates 11 are slidingly installed on the adjusting seat 10, the threaded rod 12 is rotatably installed in the adjusting seat 10, both the limiting plates 11 are threadedly sleeved on the threaded rod 12, and the adjusting block 13 is fixed on the threaded rod 12.

[0023] In this embodiment, the adjusting seat 10 is designed to be detachably installed on the lower ring 2, which makes the entire limiting assembly easy to install or disassemble as needed, facilitating cleaning and maintenance, improving the flexibility and maintainability of the device, while ensuring that the limiting assembly can be firmly fixed on the lower ring 2, providing a solid foundation for subsequent foot limiting, and by rotating the threaded rod 12, the positions of the two limiting plates 11 on the adjusting seat 10 can be adjusted simultaneously, thereby realizing the adaptation and clamping of the patient's foot width, ensuring the accuracy and comfort of the examination, and by rotating the threaded rod 12, the two limiting plates 11 can be driven to move towards or away from each other to adapt to the foot size of different patients, providing a simple and effective adjustment mechanism that allows the limiting assembly to quickly adapt to different patients, improving the efficiency of the examination, and the adjusting block 13 facilitates the rotation of the threaded rod 12 by the operator, providing an intuitive and easy-to-operate adjustment interface for the operator, making the entire adjustment process smoother and more efficient.

[0024] In further preferred embodiments of the utility model, two extension rods 9 are installed on the adjusting seat 10, a baffle 16 is installed on each of the two extension rods 9, both the baffles 16 are in contact with the lower ring 2, two limiting openings are provided on the lower ring 2, the two extension rods 9 extend through the two limiting openings to the side of the lower ring 2 away from the limiting assembly, a first threaded section 17 is provided on each of the two extension rods 9, and a nut 14 is threadedly installed on each of the two first threaded sections 17.

[0025] In the embodiment, the extension rod 9 not only connects the adjusting seat 10 and the lower ring 2, but also enhances the stability between them. Through the design of the extension rod 9, the adjusting seat 10 can be fixed more firmly on the lower ring 2, preventing loosening or displacement caused by patient movement or equipment vibration during examination, ensuring the stability and accuracy of the examination. The design of the stop sheet 16 is used to limit the movement of the extension rod 9 in the direction perpendicular to the lower ring 2, further enhancing the stability of the connection. The design of the limiting hole not only provides a passage for the extension rod 9 to pass through, but also ensures that the extension rod 9 can be installed and fixed according to the predetermined path, avoiding misplacement or damage during installation. The design of the first threaded section 17 allows the nut 14 to be threaded onto the extension rod 9, and the connection between the extension rod 9 and the lower ring 2 is tightened by rotating the nut 14. This design is simple and reliable, easy to operate and maintain.

[0026] In the further preferred embodiment of the utility model, the threaded rod 12 is provided with a second threaded section with opposite thread directions, and the two limiting plates 11 are respectively located on the two second threaded sections. The adjusting block 13 is provided with anti-skid lines.

[0027] In the embodiment, since the threads of the two second threaded sections are in opposite directions, when the threaded rod 12 is rotated, the two limiting plates 11 will move simultaneously but in opposite directions. This design greatly simplifies the adjustment process, and the operator only needs to rotate one threaded rod 12 to simultaneously adjust the positions of the two limiting plates 11, improving the adjustment efficiency. In addition, this design ensures that the two limiting plates 11 can always move in parallel and symmetrically, thereby more evenly clamping the patient's feet, improving comfort. The design of the anti-skid lines allows the operator to hold more stably when rotating the adjusting block 13, preventing adjustment errors or accidents caused by slippery hands.

[0028] In the further preferred embodiment of the utility model, the top of the mounting plate 6 is provided with a sliding groove, and the sliding groove is fixedly connected with a sliding block. The sliding block is fixedly connected with the inner wall of the top of the limiting sleeve 8. The sliding block is inlaid with a plurality of rolling balls, and the rolling balls can be in contact with the inner wall of the sliding groove.

[0029] In the embodiment, the sliding groove provides a track for the sliding of the limiting sleeve 8, and the design of the sliding groove enables the limiting sleeve 8 to slide along a predetermined path, avoiding deviation or shaking during sliding, improving the stability and accuracy of sliding, and through the fixed connection of the sliding block and the limiting sleeve 8, the sliding of the limiting sleeve 8 is converted into the sliding of the sliding block, simplifying the sliding structure and improving the reliability and durability of sliding, when the sliding block slides in the sliding groove, the ball rolls along the inner wall of the sliding groove, thereby reducing the sliding resistance, and the ball can also disperse the impact force during sliding, prolonging the service life of the sliding block and the sliding groove, in addition, the rolling of the ball also has a certain self-lubricating effect, reducing wear and noise caused by friction.

[0030] In the further preferred embodiment of the utility model, the bottom of the clamping plate 7 and the inner part of the bayonet are both equipped with anti-skid pads 5, and both sides of the base 1 are hingedly connected with handles 15.

[0031] In the embodiment, the design of the anti-skid pads 5 increases the friction between the bayonet and the magnetic resonance bed, effectively preventing the base 1 from sliding or falling off when subjected to external force, which is crucial to ensure the stability of the patient's feet during the examination process, and the addition of the handles 15 makes the entire device more convenient to move or carry, and the operator can easily move the base 1 and its components by holding the handles 15, without having to laboriously carry the entire device, which not only improves work efficiency, but also reduces the risk of equipment damage or personal injury caused by improper handling.

[0032] In the further preferred embodiment of the utility model, the base 1, the lower ring 2, the upper ring 3, the mounting plate 6, the clamping plate 7, the limiting sleeve 8, the sliding block, the two extension rods 9, the adjusting seat 10, the two limiting plates 11, the threaded rod 12, the adjusting block 13, the two nuts 14, the two handles 15, the two blocking pieces 16 and the two first threaded sections 17 are all made of plastic material, and the lower ring 2 and the upper ring 3 are both equipped with protective pads 4 on the side close to each other.

[0033] In the embodiment, the plastic material is relatively light, which significantly reduces the weight of the entire device, making it easier for the operator to carry and move the device, improving work efficiency and portability, and plastic is an electrical insulator, which gives the device certain advantages in electrical safety, which is particularly important in the use environment of medical equipment, and at the same time, the device is applied to the magnetic resonance environment, and the plastic material of the components ensures the safety of the patient.

[0034] To sum up, compared with the related art, the device can preliminarily limit the patient's leg by setting the lower ring 2 cooperating with the upper ring 3, and limit the angle of the patient's angle by setting the limiting assembly, so that the angle of the patient's knee joint remains relatively stable, increases the accuracy of the detection result, and the limiting assembly can be disassembled by disassembling the nut 14, the threaded rod 12 can be rotated by rotating the adjusting block 13, the distance between the two limiting plates 11 is adjusted, so that the feet of different widths are limited.

[0035] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art can combine, add or delete the features of the embodiments according to the circumstances without creative labor, so as to obtain different technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope of the present application.

Claims

1. An apparatus for magnetic resonance examination of the knee joint, characterized in that The utility model provides a nuclear magnetic resonance knee joint line coil, which comprises a base, a lower ring, an upper ring, a mounting plate and a clamping plate. The bottom of the base is provided with a bayonet, which can be sleeved on a nuclear magnetic resonance bed. The lower ring is slidably installed on the top of the base and is used for supporting the legs of a patient. The upper ring is hingedly connected to the lower ring and forms a complete knee joint line coil together with the lower ring. The mounting plate is fixed on the upper ring, and a limiting sleeve is slidably installed on the mounting plate. The clamping plate is fixed on the lower ring, and the limiting sleeve can be sleeved outside the clamping plate. A limiting assembly is arranged on the base and is used for stabilizing the feet of a patient.

2. A device for magnetic resonance examination of the knee joint as claimed in claim 1, characterized in that, The limiting assembly comprises an adjusting seat, two limiting plates, a threaded rod and an adjusting block.

3. A device for magnetic resonance examination of the knee joint as claimed in claim 2, characterized in that The adjusting seat is detachably installed on the lower ring.

4. The device for magnetic resonance examination of the knee joint according to claim 2, characterised in that, The two limiting plates are slidably installed on the adjusting seat.

5. The device for magnetic resonance examination of the knee joint according to claim 2, characterised in that, The threaded rod is rotatably installed in the adjusting seat.

6. The device for magnetic resonance examination of the knee joint according to claim 1, characterised in that, The two limiting plates are threadedly sleeved on the threaded rod.

7. A device for magnetic resonance examination of the knee joint as claimed in claim 5, characterized in that, The adjusting block is fixed on the threaded rod. Two extension rods are installed on the adjusting seat. Two stop sheets are installed on the two extension rods. The two stop sheets are in contact with the lower ring. Two limiting openings are arranged on the lower ring. The two extension rods extend through the two limiting openings to the side of the lower ring away from the limiting assembly. Two first threaded sections are arranged on the two extension rods. Second threaded sections with opposite screw directions are arranged on the threaded rod. The two limiting plates are arranged on the two second threaded sections. Anti-slip patterns are arranged on the adjusting block. A sliding groove is arranged on the top of the mounting plate. A sliding block is fixed in the sliding groove. The sliding block is fixedly connected to the inner wall of the top of the limiting sleeve. A plurality of rolling balls are embedded on the sliding block. The plurality of rolling balls are in contact with the inner wall of the sliding groove. Anti-slip pads are installed on the bottom of the clamping plate and in the bayonet. Handles are hingedly connected to the two sides of the base. The base, the lower ring, the upper ring, the mounting plate, the clamping plate, the limiting sleeve, the sliding block, the two extension rods, the adjusting seat, the two limiting plates, the threaded rod, the adjusting block, the two nuts, the two handles, the two stop sheets and the two first threaded sections are all made of plastic. Protective pads are installed on the sides of the lower ring and the upper ring away from each other.

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