Knee joint special coil device for nuclear magnetic examination

Abstract

The embodiment of the utility model provides a knee joint special coil device for nuclear magnetic examination, and the device comprises a support table which is provided with a plurality of supporting legs, and the supporting legs can be erected on a moving bed of nuclear magnetic examination equipment; the coil assembly is slidably arranged on the support table; the bearing plate is hinged to one side of the support table; a slidable supporting table is arranged on the supporting plate; one end of the supporting adjusting assembly is hinged to the bearing plate, and the other end of the supporting adjusting assembly abuts against the bed surface of the moving bed; wherein the supporting table is aligned with the coil assembly in position, and the coil assembly and the supporting table are the same in sliding direction. According to the technical scheme, when the knee joint of the patient is placed in the coil assembly, the shank of the patient can be placed on the supporting table of the supporting plate, and the stability of the leg of the patient during nuclear magnetic examination is facilitated. In addition, the setting angle of the bearing plate can be changed relative to the support table, and then the knee joint can be bent to a certain fixed angle to be subjected to nuclear magnetic examination.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear magnetic technology, in particular to a knee joint special coil device for nuclear magnetic examination. BACKGROUND

[0002] Nuclear magnetic resonance imaging examination has become a common medical image examination method, which provides a reliable basis for the diagnosis of patients. At present, when the knee joint of a patient is subjected to nuclear magnetic examination, a knee joint nuclear magnetic coil is usually used to wrap the knee joint of the patient, and then the knee joint of the patient and the nuclear magnetic coil are sent into a nuclear magnetic resonance device together, so that the medical image of the knee joint can be obtained.

[0003] However, in the use of the existing knee joint nuclear magnetic coil, the lower leg of the patient is often in a suspended state, which is not conducive to the stability of the patient's examination posture and is not conducive to the bending of the knee joint to a certain fixed angle for nuclear magnetic examination. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application is proposed to provide a knee joint special coil device for nuclear magnetic examination to solve the above problems.

[0005] In an embodiment of the present application, a knee joint special coil device for nuclear magnetic examination is provided, comprising:

[0006] A support table having a plurality of supporting legs, which can be arranged on a movable bed of a nuclear magnetic examination device;

[0007] A coil assembly slidably arranged on the support table;

[0008] A supporting plate hingedly connected to one side of the support table, wherein a slidable supporting table is arranged on the supporting plate;

[0009] A supporting adjusting assembly hingedly connected to one end of the supporting plate and abutting against the surface of the movable bed at the other end;

[0010] Wherein, the supporting table is aligned with the coil assembly in position, and the slidable direction of the coil assembly is parallel to the supporting table.

[0011] Optionally, the plane of the supporting plate is flush with the plane of the support table, or the plane of the supporting plate is inclined downward and arranged on one side of the plane of the support table;

[0012] The top of the supporting table is provided with an arc-shaped supporting surface, and an adjustable fixing belt is arranged on the supporting table.

[0013] Optionally, a first sliding groove is arranged on the support table, a first sliding seat is arranged on the coil assembly, and the first sliding seat is connected to the first sliding groove in a matched manner.

[0014] Optionally, a second sliding groove is arranged on the front surface of the supporting plate, and a second sliding seat is arranged on the supporting table and is matched and connected in the second sliding groove.

[0015] Optionally, the first sliding groove and the second sliding groove are arranged in the same direction; the first sliding seat is detachably connected with the first sliding groove, and the second sliding seat is detachably connected with the second sliding groove.

[0016] Optionally, the supporting adjusting assembly comprises a supporting frame and a supporting base; the first end of the supporting frame is arranged on the back surface of the supporting plate, and the supporting base is hingedly connected to the second end of the supporting frame.

[0017] Optionally, the supporting frame comprises a plurality of parallel supporting rods, and connecting rods are arranged between the supporting rods; the supporting base is hingedly connected to the end portions of the supporting rods.

[0018] Optionally, the supporting adjusting assembly comprises a sleeve and a supporting rod; an internal thread is arranged on the inner side of the sleeve, an external thread is arranged on the supporting rod, and the supporting rod is matched and connected in the sleeve.

[0019] Optionally, a first locking assembly is further arranged on the coil assembly, a plurality of first locking positions are arranged on the supporting table, and the locking tongue of the first locking assembly is matched and connected in one of the first locking positions.

[0020] Optionally, a second locking assembly is further arranged on the supporting plate, a plurality of second locking positions are arranged on the supporting plate, and the locking buckle of the second locking assembly is matched and connected in one of the second locking positions.

[0021] In the technical scheme provided in the embodiments of the present application, when the knee joint of the patient is placed in the coil assembly, the lower leg of the patient can be placed on the supporting table of the supporting plate, and the lower leg will not be suspended, which is beneficial to the stability of the leg of the patient during the nuclear magnetic examination. In addition, the supporting plate can change the arrangement angle relative to the supporting table, and thus the nuclear magnetic examination can be performed when the knee joint is bent to a certain fixed angle. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structure schematic diagram of a first state of a knee joint special coil device provided in the present application is shown in the figure.

[0024] Figure 2 Fig. 2 is a structural schematic diagram of a second state of a knee joint special coil device provided in the present application;

[0025] Figure 3 Fig. 3 is a use state schematic diagram of a knee joint special coil device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. The "comprising" mentioned in the whole specification and claims is an open term, and should be interpreted as "comprising but not limited to". "Approximately" means that the technical problems can be solved within a certain error range, and the technical effects can be basically achieved by those skilled in the art within a certain error range. In addition, in the embodiments of the present application, multiple means two or more. Those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0027] As the preferred method of joint injury imaging examination, the magnetic resonance device can effectively evaluate the cartilage, tendon and ligament of the knee joint. In order to meet the needs of diagnosis, when the magnetic resonance device scans the knee joint, the knee joint needs to be in a state of flexion of 15-30°. In this state, the scanning examination can better show the anterior and posterior cruciate ligaments, and can also prevent the tibia from moving forward, control the angle of internal rotation and external rotation of the knee joint.

[0028] At present, when the knee joint is scanned in the clinic, the lower leg is usually placed on the examination bed (the moving bed of the nuclear magnetic examination device), and the knee joint is in a suspended state at the examination coil, or the knee joint is flexed by using soft cushions, sandbags and other objects in the popliteal fossa. The randomness is large, the comfort of the patient is not good, the angle of the image is not good or motion artifacts are generated, which affects the diagnosis of the disease.

[0029] In order to solve the above technical problems, in an embodiment of the present application, a knee joint special coil device for nuclear magnetic examination is provided.

[0030] Reference should be made to Figures 1 to 3In one embodiment of the present application, a knee joint special coil device for nuclear magnetic examination is provided, which comprises a support table 1, a coil assembly 2, a supporting plate 4 and a support adjusting assembly 6. The support table 1 has a plurality of supporting legs 11 which can be placed on a moving bed of a nuclear magnetic examination device. The supporting legs 11 are mainly used to elevate the table top of the support table 1, so as to facilitate the patient to place the knee joint. The coil assembly 2 is slidably arranged on the support table 1, and has a through hole in the middle. When the patient is examined, the knee joint is placed in the through hole, and the coil assembly 2 wraps the knee joint of the patient.

[0031] The coil assembly 2 is suitable for a nuclear magnetic resonance device. When the patient uses the nuclear magnetic resonance device for nuclear magnetic resonance examination, the coil assembly 2 is first worn on the part to be examined, and then the coil assembly 2 and the patient are simultaneously sent into the examination area of the nuclear magnetic resonance device. Under the action of the coil assembly 2, clearer medical image images can be obtained.

[0032] The nuclear magnetic resonance device comprises a device main body and a moving bed. When the patient is examined by nuclear magnetic resonance, the patient first lies on the moving bed, and then the moving bed carries the patient to move to the examination area of the device main body. The device main body can perform nuclear magnetic resonance examination on the patient in the examination area. When the patient needs to use the knee joint special coil device, the device can be carried to the moving bed, and then the patient lying on the moving bed places the knee joint on the correct position of the knee joint special coil device, so that the nuclear magnetic resonance examination of the knee joint can be realized. In order to avoid danger, the whole knee joint special coil device for nuclear magnetic examination is composed of non-ferromagnetic materials. Usually, except for part of the wires in the coil assembly 2, the other components of the knee joint special coil device for nuclear magnetic examination are composed of plastics.

[0033] Further, the supporting plate 4 is hinged to one side of the support table 1, specifically, the supporting plate 4 is hinged to one side of the support table 1 through a hinge 41. The supporting plate 4 is provided with a slidable supporting table 5 which can slide relative to the supporting plate 4. When the patient uses the device, first, the patient's leg is put into the through hole of the coil assembly 2, so that the patient's knee joint is just in the through hole of the coil assembly 2. Then the patient's lower leg is placed on the supporting table 5 of the supporting plate 4 along the axis direction of the coil assembly 2. The supporting table 5 can support the patient's lower leg. The supporting table 5 is aligned with the coil assembly 2, which can be understood as that the projection of the supporting table 5 and the projection of the coil assembly 2 are on the same straight line.

[0034] The support adjusting assembly 6 is hingedly connected to the supporting plate 4 at one end and abuts against the bed surface of the mobile bed at the other end. The support adjusting assembly 6 is connected to the outer side of the supporting plate 4, and by adjusting the support adjusting assembly 6, the support height of the support adjusting assembly 6 can be changed, and accordingly the height of the one side of the supporting plate 4 is changed, and the angle between the supporting plate 4 and the support table 1 is changed. In addition, the coil assembly 2 and the supporting table 5 have the same slidable direction, that is, the slidable direction of the coil assembly 2 is parallel to the slidable direction of the supporting table 5.

[0035] Further, in an embodiment provided in the present application, the support adjusting assembly 6 has at least a first support state and a second support state; when the support adjusting assembly 6 is in the first support state, the plane of the supporting plate 4 is flush with the plane of the support table 1, as shown in Figure 2 ; or when the support adjusting assembly is in the second support state, the plane of the supporting plate 4 is obliquely arranged on one side of the plane of the support table 1, as shown in Figure 1 ; the arrangement angle between the plane of the supporting plate 4 and the plane of the support table 1 is in the range of [10 degrees-50 degrees].

[0036] Referring to Figure 1 and Figure 2 , in order to make the supporting table 5 have better supporting effect, the top of the supporting table 5 is provided with an arc-shaped supporting surface 51, and when the supporting table 5 is used to support the lower leg of a patient, the lower leg of the patient is placed on the supporting surface 51. In addition, the supporting table 5 is provided with an adjustable fixing belt. After the lower leg of the patient is placed on the supporting table 5, the lower leg of the patient can be fixed on the supporting table 5 through the fixing belt, which can effectively avoid the displacement of the examination part of the patient during the nuclear magnetic resonance examination.

[0037] For different patients, the knee joint that needs to be examined may be the left knee joint or the right knee joint, so the coil assembly 2 needs to be adjusted in position. Referring to Figure 1 and Figure 2 , in an embodiment provided in the present application, the support table 1 is provided with a first sliding groove 7, and the coil assembly 2 is provided with a first sliding seat which is connected to the first sliding groove 7 in a matched manner. When it is needed to adjust the arrangement position of the coil assembly 2, the position adjustment of the coil assembly 2 can be realized by pushing the coil assembly 2 to slide along the first sliding groove 7.

[0038] For example, a patient needs to simultaneously perform nuclear magnetic resonance examination on the knee joints of the left foot and the right foot. During the examination, first, the knee joint of the left foot is placed in the coil assembly 2, and nuclear magnetic resonance examination is performed. Before the knee joint of the right foot is examined, the coil assembly 2 on the left side is slid along the first sliding groove 7 to the right side of the supporting plate 4, and finally the knee joint of the right foot is placed in the coil assembly 2, and nuclear magnetic resonance examination is completed.

[0039] Similarly, when the coil assembly 2 is adjusted in position, the position of the supporting platform 5 on the supporting plate 4 also needs to be adjusted synchronously to ensure that the supporting platform 5 is aligned with the coil assembly 2 in position. See Figure 1 and Figure 2 In an embodiment provided in the present application, the front surface of the supporting plate 4 is provided with a second sliding groove 8, and the supporting platform 5 is provided with a second sliding seat which is connected to the second sliding groove 8 in a matching manner. The second sliding seat can slide in the second sliding groove 8 to adjust the position of the supporting platform 5.

[0040] Further, the first sliding groove 7 and the second sliding groove 8 are arranged in the same direction and are parallel to each other. In order to facilitate the patient to put the coil assembly 2 on the knee joint, the coil assembly 2 and the support table 1 are detachably connected. Specifically, the first sliding seat and the first sliding groove 7 are detachably connected. When the first sliding seat is detached from the first sliding groove 7, the coil assembly 2 can be removed from the support table 1. Alternatively, or to adapt to patients of different ages and different body types, the supporting platform 5 includes multiple different types, for example, some supporting platforms 5 are suitable for children, and some supporting platforms 5 are suitable for adults. In order to facilitate the replacement of different types of supporting platforms 5, the second sliding seat and the second sliding groove 8 are detachably connected.

[0041] See Figure 1 and Figure 2 Figure 1 Figure 2 In an embodiment provided in the present application, the support adjusting assembly 6 includes a support frame 61 and a support base 62. The first end of the support frame 61 is on the back surface of the supporting plate 4, and the support base 62 is hinged to the second end of the support frame 61. By adjusting the support position of the support base 62 on the bed surface of the mobile bed, the arrangement angle of the support frame 61 can be adjusted, and the arrangement angle of the supporting plate 4 is also adjusted at the same time. When the inclination angle of the support frame 61 becomes larger, the support height of the support frame 61 on the supporting plate 4 becomes smaller. When the support frame 61 approaches the vertical angle, the support height of the support frame 61 on the supporting plate 4 is the highest, and at this time, the plane of the supporting plate 4 is parallel to the plane of the support table 1.

[0042] Further, the support frame 61 includes multiple parallel support rods 63, and connecting rods 64 are arranged between the support rods 63. The support base 62 is hinged to the end of the support rod 63. Specifically, the support frame 61 is similar to a frame structure, and the multiple connecting rods 64 can connect the multiple support rods 63 into one body to form a support frame 61 which has a stable structure and strong support capacity.

[0043] In another embodiment provided in the present application, the support adjusting assembly 6 includes a sleeve and a support rod. The inner side of the sleeve is provided with an internal thread, the support rod is provided with an external thread, and the support rod is connected to the sleeve in a matching manner. By rotating the support rod, the support rod can be rotated into or out of the sleeve. In this way, the support height of the support rod can be changed, thereby facilitating the adjustment of the support height. The operation is simple and convenient, and the application range is wide.

[0044] After the coil assembly 2 and the supporting table 5 are slid to the predetermined positions, they need to be fixed to facilitate the patient to perform the nuclear magnetic resonance examination. In an embodiment provided in the present application, the knee joint special coil device for the nuclear magnetic examination further comprises a first locking assembly arranged on the coil assembly 2, and the supporting table 1 is provided with a plurality of first locking positions; the locking tongue of the first locking assembly can be connected to one of the first locking positions. Specifically, taking the case that the supporting table 1 is provided with two first locking positions as an example, one first locking position is arranged on the left side of the first sliding groove 7, and the other first locking position is arranged on the right side of the first sliding groove. When the coil assembly 2 is slid to the left side of the first sliding groove 7, the first locking assembly can be connected to the first locking position on the left side, and the coil assembly 2 will be positioned on the left side of the first sliding groove 7. Only by unlocking the first locking assembly, the coil assembly 2 can be slid to the right side of the first sliding groove 7 again, and then the first locking assembly can be connected to the first locking position on the right side, and the coil assembly 2 will be positioned on the right side of the first sliding groove 7.

[0045] Similarly, the knee joint special coil device for the nuclear magnetic examination further comprises a second locking assembly arranged on the supporting plate, and the supporting plate 4 is provided with a plurality of second locking positions; the locking buckle of the second locking assembly can be connected to one of the second locking positions. The second locking assembly, the second locking position, the first locking assembly and the first locking position are similar in structure, and they also have the function of limiting position, specifically, limiting the position of the supporting table 5 after the supporting table 5 is slid to the appropriate position, so as to avoid the displacement of the supporting table 5 when the patient places the lower leg on the supporting table 5.

[0046] In summary, in the technical scheme provided in the embodiment of the present application, when the knee joint of the patient is placed in the coil assembly, the lower leg of the patient can be placed on the supporting table of the supporting plate, and the lower leg will not be suspended, which is beneficial to the stability of the leg of the patient during the nuclear magnetic examination. In addition, the supporting plate can change the setting angle relative to the supporting table, and thus the nuclear magnetic examination can be performed when the knee joint is bent to a certain fixed angle.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the present application.

Claims

1. A knee joint dedicated coil device for nuclear magnetic examination, characterized by, The utility model relates to a support table for nuclear magnetic examination equipment, which comprises a support table with multiple supporting legs, a coil assembly, a supporting plate, a support adjusting assembly and a first locking assembly. The supporting legs are arranged on a moving bed of the nuclear magnetic examination equipment. The coil assembly is slidably arranged on the support table. The supporting plate is hingedly connected to one side of the support table. The support adjusting assembly is hingedly connected to the supporting plate at one end and abuts against the bed surface of the moving bed at the other end. The coil assembly is arranged in position with the support table.

2. The knee joint dedicated coil device for nuclear magnetic examination according to claim 1, characterized by, The supporting plate is arranged in the same plane as the support table or is arranged on the side of the support table at an angle. The top of the support table is provided with an arc-shaped supporting surface.

3. The knee joint dedicated coil device for nuclear magnetic examination according to claim 1, wherein, The support table is provided with an adjustable fixing belt.

4. The knee joint dedicated coil device for nuclear magnetic examination according to claim 3, characterized by, The support table is provided with a first sliding groove.

5. The knee joint dedicated coil device for nuclear magnetic examination according to claim 4, characterized by, The coil assembly is provided with a first sliding seat.

6. The knee joint dedicated coil device for nuclear magnetic examination according to claim 1, wherein The supporting plate is provided with a second sliding groove.

7. The knee joint dedicated coil device for nuclear magnetic examination according to claim 6, characterized by The support table is provided with a second sliding seat.

8. The knee joint dedicated coil device for nuclear magnetic examination according to claim 1, wherein, The first sliding seat is detachably connected to the first sliding groove.

9. The knee joint dedicated coil device for nuclear magnetic examination according to claim 1, wherein, The second sliding seat is detachably connected to the second sliding groove.

10. The knee joint dedicated coil device for nuclear magnetic examination according to claim 9, characterized by, The support adjusting assembly comprises a support frame and a support base. The first end of the support frame is connected to the back of the supporting plate. The support base is hingedly connected to the second end of the support frame. The support frame comprises multiple parallel support rods. The support base is hingedly connected to the end of the support rod. The support adjusting assembly comprises a sleeve and a support rod. The inside of the sleeve is provided with an internal thread. The support rod is provided with an external thread. The first locking assembly is arranged on the coil assembly. The support table is provided with multiple first locking positions. The locking tongue of the first locking assembly is detachably connected to one of the first locking positions. The second locking assembly is arranged on the support plate. The supporting plate is provided with multiple second locking positions. The locking buckle of the second locking assembly is detachably connected to one of the second locking positions.

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