Ankle magnetic resonance examination auxiliary device used for being matched with head and neck coils

Abstract

The utility model relates to the technical field of magnetic resonance examination equipment, in particular to an ankle magnetic resonance examination auxiliary device used for being matched with a head and neck coil, which comprises a sole backup plate and a shank supporting plate which are detachably arranged in an inner cavity of the head and neck coil. The sole backup plate extends upwards for a certain length on the shank supporting plate which extends transversely so as to be suitable for being in contact with the sole of a human body; ankle backup plates used for making contact with human ankles are arranged on the left side and the right side of the shank supporting plate respectively. According to the ankle magnetic resonance examination auxiliary device for adapting to the head and neck coil, the head and neck coil of magnetic resonance equipment can be compatible with the ankle part of a human body, so that the head and neck coil is also suitable for supporting and fixing the ankle part of the human body in magnetic resonance examination; and the foot and the ankle joint are in standard anatomical postures in the examination process.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic resonance examination equipment, in particular to an auxiliary device for magnetic resonance examination of ankles and feet used for adapting a head and neck coil. Background Art

[0002] Magnetic resonance, also known as magnetic resonance imaging, is another major advancement in medical imaging after CT. Since its application in the 1980s, it has developed at a very fast speed. Its basic principle is to place the human body in a special magnetic field. When the object being measured is placed in the magnetic field, the hydrogen atoms in its body can be polarized. Radio frequency pulses are used to excite the hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulse is stopped, the hydrogen nuclei emit radio signals at a specific frequency and release the absorbed energy, which is collected by the receiver outside the body and processed by the computer to obtain an image. The radio frequency coil is an important part of the magnetic resonance imaging system. It is used to generate radio frequency pulses, excite the scanned object, and generate magnetic resonance signals; then, the radio frequency coil receives the magnetic resonance signals, and through subsequent data processing, a 2D or 3D picture of the scanned object is obtained. In order to better collect the magnetic resonance signals of the scanned part and improve the signal-to-noise ratio of the image, local coils are widely used. Local coils are often designed for a specific scanned part, such as local coils for feet and ankles, local coils for wrists, local coils for spine, etc. Although this method of corresponding a local coil to each local part is beneficial to improving local imaging quality and obtaining images with a high signal-to-noise ratio, it also causes an increase in medical costs.

[0003] However, in actual use, when scanning the foot or ankle joint, it is advisable to use a dedicated surface coil for the foot and ankle. However, since the dedicated coil for the foot and ankle is expensive and has a low utilization rate, many hospitals do not have dedicated surface coils for the foot and ankle. Even if a foot and ankle coil is configured, the coil needs to be replaced when switching the examination site. This not only makes the technician pay extra labor to replace the coil, but also takes time and reduces the examination efficiency. For the above reasons, many hospitals use standard head (neck) coils for foot and ankle scanning. Although the head (neck) coil can achieve good image quality, there are still some shortcomings. The most prominent shortcoming is that the head (neck) coil has no device to support and fix the foot. This is not conducive to the braking of the patient's foot, nor is it conducive to posing a standard anatomical position. The braking and standard anatomical position of the examined part are crucial to the acquired magnetic resonance images. In short, when using the head (neck) coil for foot and ankle magnetic resonance scanning, since the head (neck) coil has no device to support and fix the foot, it is not conducive to the braking of the patient's foot and posing a standard anatomical position, which seriously affects the quality of the acquired image. Utility Model Content

[0004] In order to solve to a certain extent the shortcomings that traditional head and neck coils can only be used for scanning the head and neck area but not for scanning the feet and ankles, the utility model provides a foot and ankle magnetic resonance examination auxiliary device for adapting to the head and neck coil, which helps to make the head and neck coil of the magnetic resonance equipment compatible with the human foot and ankle, so that the head and neck coil is also suitable for supporting and fixing the human foot and ankle in magnetic resonance examination, so that the foot and ankle joints can be in a standard anatomical posture during the examination.

[0005] The utility model discloses a foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, comprising a foot support plate and a calf support plate for detachably inserting into the inner cavity of the head and neck coil;

[0006] The sole support plate extends upwards on the calf support plate extending laterally to a certain length so as to be suitable for contacting the sole of a human body;

[0007] The left and right sides of the calf support plate are respectively provided with ankle support plates for contacting the ankle of the human body.

[0008] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting to a head and neck coil is provided at the bottom of the calf support plate with a support rod extending downward for abutting against the neck supporting surface of the head and neck coil.

[0009] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting to a head and neck coil, there are multiple support rods, and each of the support rods is respectively abutted downward against the neck supporting surface of the head and neck coil from a different position.

[0010] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, the calf support plate includes a wide plate and a narrow plate fixedly connected to each other;

[0011] The wide plate is away from the sole support plate and is suitable for being arranged above the neck supporting surface of the head and neck coil, and the support rod is arranged at the bottom of the wide plate;

[0012] The narrow plate is close to the plantar support plate and fixedly connected with the plantar support plate.

[0013] According to the foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil of the utility model, each corner of the outer edge of the wide plate is formed with a rounded corner.

[0014] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, the length of the support rod is adjustable.

[0015] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil, the plantar support plate extends vertically upward and forms an angle greater than or equal to 90° with the calf support plate.

[0016] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, the foot and ankle support plate extends at the angle between the sole support plate and the calf support plate.

[0017] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil, the foot support plate is integrally formed at the end of the calf support plate and is bent with the calf support plate;

[0018] The ankle support plate is integrally formed on the side of the sole support plate and is bent with the sole support plate;

[0019] The bottom edge of the ankle support plate is supported on the surface of the calf support plate.

[0020] According to the utility model, a foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, the foot and ankle support plate forms an arc-shaped outer edge between the sole support plate and the calf support plate.

[0021] The utility model discloses an auxiliary device for magnetic resonance examination of the foot and ankle adapted to the head and neck coil, comprising a plantar support plate and a calf support plate which are suitable for being detachably placed in the inner cavity of the head and neck coil, wherein the calf support plate extends laterally, and the plantar support plate extends a certain length upward on the laterally extending calf support plate. Therefore, in the preparation process before the magnetic resonance examination, a human body in a lying state can extend the foot into the inner cavity of the head and neck coil, and at this time, the calf support plate can be supported on the bottom of the human calf to fix the human calf, and the plantar support plate can fix the human sole at the front end of the calf support plate by contacting the human sole, so that the sole can be kept in a standard anatomical posture. Furthermore, since the left and right sides of the calf support plate are respectively provided with ankle support plates for contacting the human ankle, the human ankle can be restricted between the two ankle support plates, effectively restricting the left and right movement of the ankle, preventing the foot from being displaced from the left and right position during the examination, and further ensuring that the human sole can be kept in a standard anatomical posture. Therefore, when using, after placing this auxiliary device into the head and neck coil, it can not only support the calf through the calf support plate, but also limit the front and rear position of the foot through the sole support plate, and the patient's ankles are close to the ankle support plates on the left and right sides to keep the position unchanged. At this time, close the upper part of the head and neck coil and connect the signal acquisition cable to perform signal scanning, which solves the shortcoming that the traditional head and neck coil can only be used for scanning the head and neck area but not for scanning the feet and ankles. The head and neck coil of the magnetic resonance equipment can also be compatible with the feet and ankles of the human body, so that the head and neck coil is also suitable for supporting and fixing the feet and ankles of the human body in magnetic resonance examinations, so that the foot and ankle joints are in a standard anatomical posture during the examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0024] Reference numerals:

[0025] 1. Foot support board, 2. Calf support board, 21. Wide board, 22. Narrow board, 23. Rounded corners, 3. Ankle support board, 4. Support rod. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limitations on the utility model. In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the utility model.

[0027] like Figure 1 As shown, the present embodiment is an auxiliary device for magnetic resonance examination of the foot and ankle adapted to the head and neck coil, and its structure includes a plantar support plate and a calf support plate 2, the plantar support plate and the calf support plate 2 are used to be detachably installed into the inner cavity of the head and neck coil, and the inner cavity is originally used to accommodate the head and neck of the human body, the calf support plate 2 extends laterally, the plantar support plate 1 extends upward on the calf support plate 2 for a certain length and is suitable for contacting the sole of the human body, and the left and right sides of the calf support plate 2 are respectively fixed with ankle support plates 3 for contacting the ankle of the human body.

[0028] That is to say, the auxiliary device of this embodiment includes a plantar support plate 1 and a calf support plate 2 suitable for being detachably placed in the inner cavity of the head and neck coil. The calf support plate 2 extends laterally, and the plantar support plate 1 extends a certain length upward on the laterally extended calf support plate 2. Therefore, in the preparation process before the magnetic resonance examination, the human body in a lying state can extend the foot into the inner cavity of the head and neck coil. At this time, the calf support plate 2 can be supported on the bottom of the human calf to fix the human calf, and the plantar support plate 1 can fix the human sole at the front end of the calf support plate 2 by contacting the human sole, so that the sole can be maintained in a standard anatomical posture. Furthermore, since the left and right sides of the calf support plate 2 are respectively provided with ankle support plates 3 for contacting the human ankle, the human ankle can be restricted between the two ankle support plates 3, effectively restricting the left and right movement of the ankle, preventing the foot from being displaced left and right during the examination, and further ensuring that the human sole can be maintained in a standard anatomical posture. Therefore, when using, after placing this auxiliary device into the head and neck coil, it can not only support the calf through the calf support plate 2, but also limit the front and rear position of the foot through the sole support plate 1, and the patient's ankles are close to the ankle support plates 3 on the left and right sides to keep the position unchanged. At this time, close the upper part of the head and neck coil and connect the signal acquisition cable to perform signal scanning, which solves the shortcoming that the traditional head and neck coil can only be used for scanning the head and neck area but not for scanning the feet and ankles. The head and neck coil of the magnetic resonance equipment can also be compatible with the feet and ankles of the human body, so that the head and neck coil is also suitable for supporting and fixing the feet and ankles of the human body in magnetic resonance examinations, so that the foot and ankle joints are in a standard anatomical posture during the examination.

[0029] It should be noted that the materials of the sole support plate 1, the calf support plate 2 and the ankle support plate 3 are compatible with the magnetic resonance magnetic field to avoid image artifacts.

[0030] Specifically, a support rod 4 extending downward is installed at the bottom of the calf support plate 2, and the support rod 4 is used to abut the neck supporting surface of the head and neck coil, so that the calf support plate 2 can be stably supported in the head and neck coil. Optionally, the number of support rods 4 in this embodiment is two, and the two support rods 4 are respectively abutted downward on the neck supporting surface of the head and neck coil from different positions, thereby further improving the stability of the calf support plate 2 in the head and neck coil. Further, the length of the support rod 4 is adjustable, and the length of the support rod 4 extending downward can be adjusted by a telescopic support rod or a structure adjusted by a screw rod. Therefore, the extension length of the support rod 4 can be adjusted according to the different depths of the neck supporting surface of different head and neck coils to ensure that the position of its auxiliary device when placed in the head and neck coil is firm, which helps to ensure that the position will not move during use.

[0031] Specifically, the structure of the calf support plate 2 includes a wide plate 21 and a narrow plate 22 fixedly connected to each other, the wide plate 21 is far away from the sole support plate 1 and is suitable for being arranged above the neck support surface of the head and neck coil, the support rod 4 is installed at the bottom of the wide plate 21, and the narrow plate 22 is close to the sole support plate 1 and fixedly connected to the sole support plate 1. It can be understood that since the calf part of the human body is wider than the foot, the present embodiment divides the board surface of the calf support plate 2 into a wide plate 21 and a narrow plate 22 of different widths, which can be more adapted to the shape characteristics of the human calf and foot, and uses the wider wide plate 21 to contact and support the human calf, ensuring that the calf support plate 2 stably supports the calf.

[0032] Preferably, each corner of the outer edge of the wide plate 21 is formed with a rounded corner 23 to avoid injury to the human body due to the sharp corners of the wide plate 21, thereby improving the safety of use.

[0033] Specifically, the plantar support plate 1 extends vertically upward, and the plantar support plate 1 and the calf support plate 2 form an angle greater than or equal to 90°, which can make the foot and ankle joint present a standard anatomical posture during the examination.

[0034] Optionally, the plantar support plate 1 and the calf support plate 2 form an angle greater than 90° and less than 120° with each other, so that the plantar support plate 1 can be slightly tilted forward. When in use, the sole of the human body can also be tilted to a certain extent following the forward tilting angle of the plantar support plate 1. This structure can prevent the human body's foot from being vertical during the inspection process and allow the foot to be slightly tilted forward, which can help improve the comfort of the human body.

[0035] In one embodiment, the ankle support plate 3 extends at the angle between the sole support plate 1 and the calf support plate 2 to ensure that the ankle support plate 3 has a sufficient area to contact the human ankle. Preferably, the ankle support plate 3 forms an arc-shaped outer edge between the sole support plate 1 and the calf support plate 2, which can also help improve the safety of the auxiliary device and avoid damage to the human body.

[0036] In one embodiment, in order to facilitate the integrated manufacturing of the auxiliary device and reduce the manufacturing cost, the plantar support plate 1, the calf support plate 2 and the ankle support plate 3 are integrally formed. Specifically, the plantar support plate 1 is integrally formed at the end of the calf support plate 2 and is bent relative to the calf support plate 2, and the ankle support plate 3 is integrally formed at the side of the plantar support plate 1 and is bent relative to the plantar support plate 1. This structure allows the plantar support plate 1, the calf support plate 2 and the ankle support plate 3 to be integrally manufactured on a flat plate. The auxiliary device of the present invention is manufactured by sheet metal cutting and bending processes, has a simple structure, and is easy to manufacture. Finally, the bottom edge of the ankle support plate 3 is supported on the surface of the calf support plate 2, so that the structural stability of the ankle support plate 3 can be improved.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A foot and ankle magnetic resonance examination auxiliary device for adapting a head and neck coil, characterized in that: It comprises a foot support plate (1) and a calf support plate (2) for being detachably placed in the inner cavity of a head and neck coil; The sole support plate (1) extends upwards on the calf support plate (2) extending in a transverse direction to a certain length so as to be suitable for contacting the sole of a human body; Ankle support plates (3) for contacting the ankles of human bodies are respectively arranged on the left and right sides of the calf support plate (2).

2. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 1, characterized in that: The bottom of the calf support plate (2) is provided with a support rod (4) extending downwards and used for abutting against the neck supporting surface of the head neck coil.

3. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 2, characterized in that: There are a plurality of support rods (4), and each support rod (4) abuts downwardly against the neck supporting surface of the head and neck coil from a different position.

4. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 2, characterized in that: The calf support plate (2) comprises a wide plate (21) and a narrow plate (22) fixedly connected to each other; The wide plate (21) is away from the sole support plate (1) and is suitable for being arranged above the neck supporting surface of the head and neck coil, and the support rod (4) is arranged at the bottom of the wide plate (21); The narrow plate (22) is close to the sole support plate (1) and is fixedly connected to the sole support plate (1).

5. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 4, characterized in that: Each corner of the outer edge of the wide plate (21) is formed with a rounded corner (23).

6. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 2, characterized in that: The length of the support rod (4) is adjustable.

7. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 1, characterized in that: The foot support plate (1) extends vertically upwards and forms an angle greater than or equal to 90° with the calf support plate (2).

8. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 1, characterized in that: The ankle support plate (3) extends at the angle between the sole support plate (1) and the calf support plate (2).

9. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 1, characterized in that: The sole support plate (1) is integrally formed at the end of the calf support plate (2) and is bent relative to the calf support plate (2); The ankle support plate (3) is integrally formed on the side of the sole support plate (1) and is bent relative to the sole support plate (1); The bottom edge of the ankle support plate (3) is supported on the surface of the calf support plate (2).

10. The foot and ankle magnetic resonance examination auxiliary device for adapting the head and neck coil according to claim 1, characterized in that: The ankle support plate (3) is provided with an arc-shaped outer edge between the sole support plate (1) and the calf support plate (2).

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