CN218383258U - Magnetic resonance imaging device and magnetic resonance imaging system - Google Patents

Abstract

The present application relates to a magnetic resonance imaging apparatus and a magnetic resonance imaging system. The magnetic resonance imaging apparatus includes: magnetic resonance imaging equipment, shielding cabin and shielding cabinet. Wherein the magnetic resonance imaging device comprises a magnet and a detection cavity penetrating through the magnet. The shielding cabin is arranged on one side of the magnet. The shielding cabin is enclosed to form a shielding cavity, and the shielding cavity is communicated with one end of the detection cavity. The shielding cabinet is arranged on one side, away from the shielding cabin, of the magnet, and covers the cavity opening at the other end of the detection cavity. Therefore, on one hand, the magnetic resonance imaging equipment can be ensured to have better shielding effect when in work; on the other hand, a special shield room is not needed to place the magnetic resonance imaging equipment. Therefore, the magnetic resonance imaging device, the cabinet assembly and the console assembly can be integrated in the same room, so that the floor space of the magnetic resonance imaging system is reduced, and the construction and installation cost of the magnetic resonance imaging system is reduced.

Description

Magnetic resonance imaging device and magnetic resonance imaging system

Technical Field

The present application relates to the field of magnetic resonance imaging, and in particular, to a magnetic resonance imaging apparatus and a magnetic resonance imaging system.

Background

With the development of science and technology, accurate medical diagnosis is becoming more and more widely applied to various medical imaging devices, such as Positron Emission Tomography (PET), magnetic Resonance (MR), and Computed Tomography (CT).

Magnetic resonance imaging is performed by using the nuclear magnetic effect of hydrogen nuclei in a human body, the human body is placed in a special strong magnetic field, and the hydrogen nuclei in the human body are excited by radio frequency pulses to resonate and absorb energy. After the excitation is stopped, the hydrogen atomic nucleus sends out radio signals according to specific frequency, absorbed energy is released and recorded by a receiver outside the body, and an image is obtained through computer processing. In order to ensure the imaging quality of the magnetic resonance imaging system, shielding measures need to be taken. The conventional measure is to separately construct a shielding room for placing the magnet system, and meanwhile, to construct an equipment room for installing a corresponding matching cabinet, and to construct an operation room for facilitating a technician to operate the magnetic resonance imaging system.

However, the magnetic resonance imaging system occupies a large space, and is expensive to construct and install.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a magnetic resonance imaging apparatus and a magnetic resonance imaging system.

In a first aspect, the present application provides a magnetic resonance imaging apparatus comprising: magnetic resonance imaging equipment, shielding cabin and shielding cabinet. Wherein the magnetic resonance imaging device comprises a magnet and a detection cavity penetrating through the magnet. The shielding cabin is arranged on one side of the magnet. The shielding cabin is enclosed to form a shielding cavity, and the shielding cavity is communicated with one end of the detection cavity. The shielding cabinet is arranged on one side, away from the shielding cabin, of the magnet, and covers the cavity opening at the other end of the detection cavity.

In one embodiment, the shielding cage includes a top plate, a bottom plate, and side plates connecting the top plate and the bottom plate.

The top plate, the bottom plate and the side plates jointly enclose the shielding cavity.

In one embodiment, the shielding cabin further comprises a framework, and the top plate, the bottom plate and the side plates are arranged on the framework.

In one embodiment, the side plate is connected with the magnet, and a first through hole communicated with the detection cavity is formed in the side plate.

In one embodiment, the magnetic resonance imaging apparatus further includes a patient bed assembly slidably disposed on the bottom plate and capable of moving in and out of the detection cavity along the axial direction of the first through hole.

In one embodiment, the side plates are also provided with a cabin door and a viewing window.

In one embodiment, the magnetic resonance imaging apparatus further comprises: a motor assembly and a control member.

The first output end of the motor component is connected with the sickbed component to drive the sickbed component to move. And a second output end of the motor assembly is connected with the cabin door to drive the cabin door to open or close.

The control piece is electrically connected with the motor assembly. The control part is used for controlling the opening and closing of the motor assembly.

In one embodiment, the joints of the top plate and the side plates and the joints of the bottom plate and the side plates are provided with first shielding pieces, and the first shielding pieces are used for preventing external interference signals from entering the shielding cavities from the joints of the top plate and the side plates and the joints of the bottom plate and the side plates.

In one embodiment, the shielding cabinet comprises a cabinet body and a cabinet door arranged on the cabinet body. Wherein, one side of the cabinet body deviating from the cabinet door is connected with the magnet.

In one embodiment, a second through hole communicated with the detection cavity is formed in the cabinet body.

The cabinet body with be equipped with the second shield between the magnet, the second shield centers on the second through-hole sets up.

In one embodiment, the magnetic resonance imaging apparatus further comprises a radio frequency component and a radio frequency conversion unit which are electrically connected. The radio frequency assembly is used for sending radio frequency signals to a detected person and/or receiving magnetic resonance signals, and the radio frequency conversion unit is arranged in the cabinet body.

In one embodiment, a filtering plate is arranged on the cabinet body, and an external signal line and/or a conducting wire are electrically connected with the magnetic resonance imaging equipment after passing through the filtering plate.

In one embodiment, the cabinet door comprises a first cabinet door and a second cabinet door which are matched with each other, a third shielding piece is arranged on the first cabinet door or the second cabinet door, and when the first cabinet door and the second cabinet door are closed, the third shielding piece covers the joint of the first cabinet door and the second cabinet door.

In a second aspect, the present application provides a magnetic resonance imaging system comprising: the magnetic resonance imaging device, the cabinet assembly and the console assembly are described above.

The cabinet assembly is arranged on the periphery of the magnetic resonance imaging device and is electrically connected with the magnetic resonance imaging device. The console assembly is arranged outside a shielding compartment of the magnetic resonance imaging device. The magnetic resonance imaging device, the cabinet assembly and the console assembly are positioned in the same scanning room.

According to the magnetic resonance imaging device and the magnetic resonance imaging system, the shielding cabin and the shielding cabinet are respectively arranged at the two ends of the magnet, so that on one hand, the magnetic resonance imaging equipment can be ensured to have a good shielding effect when in work; on the other hand, a special shield room is not needed to place the magnetic resonance imaging equipment. Therefore, the magnetic resonance imaging device, the cabinet assembly and the console assembly can be integrated in the same room, so that the occupied space of the magnetic resonance imaging system is reduced, and the construction and installation cost of the magnetic resonance imaging system is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a magnetic resonance imaging apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

fig. 3 is a schematic structural diagram of another shielding chamber of a magnetic resonance imaging apparatus according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a side panel and a framework of the shielding cage of FIG. 1;

FIG. 5 is a schematic structural view of the top panel, side panels and first shield of the shielded compartment of FIG. 1;

FIG. 6 is a schematic diagram of the shielding cabinet of FIG. 1;

FIG. 7 is a schematic view of the first cabinet door and the third shielding member shown in FIG. 6;

fig. 8 is a schematic structural diagram of a magnetic resonance imaging system according to an embodiment of the present application.

Reference numerals:

1-a magnetic resonance imaging system; 10-a magnetic resonance imaging apparatus; 11-a magnetic resonance imaging device; 111-a magnet; 111 a-a detection chamber; 12-a shielded compartment; 12 a-a shielded cavity; 121-top plate; 122-a backplane; 123-side plate; 1231-a first via; 1232-hatch door; 1233-viewing window; 124-skeleton; 125-a first shield; 13-a shielded cabinet; 131-a cabinet body; 1311-second via; 132-a cabinet door; 1321-a first cabinet door; 1322-a second cabinet door; 133-a second shield; 134-a filter plate; 135-a third shield; 14-a hospital bed assembly; 15-a motor assembly; 16-a control member; 20-a cabinet assembly; 30-console assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," or "having," and the like, specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, in this specification, the term "and/or" includes any and all combinations of the associated listed items.

As described in the background, shielding measures are required to ensure the imaging quality of the magnetic resonance imaging system. The conventional measures are to separately construct a shielding room for placing the magnet system, and meanwhile, to construct a corresponding matching cabinet for the equipment room, and to construct an operation room for facilitating the operation of the magnetic resonance imaging system by technicians. When a magnetic resonance imaging system is purchased in a hospital, a scanning room (shielding room), an equipment room and an operation room are separately constructed in the early stage. However, such a magnetic resonance imaging system has the following problems: on one hand, the magnetic resonance imaging system occupies a large space and has a long construction period, so that the installation period of the magnetic resonance imaging system is long; on the other hand, the construction cost of the scanning room, the equipment room and the operation room also accounts for a part of the cost of the whole magnetic resonance imaging system, and the construction and installation cost of the magnetic resonance imaging system is high.

In order to solve at least one of the above problems, the present application provides a magnetic resonance imaging apparatus and a magnetic resonance imaging system, which can reduce the floor space of the magnetic resonance imaging system on one hand, and can reduce the construction and installation costs of the magnetic resonance imaging system on the other hand.

In a first aspect, referring to fig. 1, 2 and 3, the present application provides a magnetic resonance imaging apparatus 10. The magnetic resonance imaging apparatus 10 includes: a magnetic resonance imaging device 11, a shielding cabin 12 and a shielding cabinet 13. The magnetic resonance imaging apparatus 11 includes a magnet 111 and a detection chamber 111a penetrating the magnet 111. The shield compartment 12 is provided on one side of the magnet 111. The shielding chamber 12 encloses a shielding chamber 12a, and the shielding chamber 12a is communicated with one end of the detection chamber 111a. The shielding cabinet 13 is disposed on a side of the magnet 111 away from the shielding compartment 12, and covers the opening of the other end of the detection chamber 111a.

It will be appreciated that the magnetic resonance imaging apparatus 11 may further comprise a gradient coil (not shown), wherein the gradient coil and the magnet 111 may together form a hollow cavity extending in the axial direction, the hollow cavity forming the detection cavity 111a.

In the magnetic resonance imaging apparatus 10, the shielding cabin 12 and the shielding cabinet 13 are respectively arranged at the two ends of the magnet 111, so that on one hand, the magnetic resonance imaging device 11 can be ensured to have a good shielding effect when in operation; on the other hand, it is not necessary to specially provide a shield room for placing the magnetic resonance imaging apparatus 11. Therefore, the magnetic resonance imaging apparatus 10 and other devices (the cabinet assembly and the console assembly) of the magnetic resonance imaging system can be integrated in the same room, which not only reduces the floor space of the magnetic resonance imaging system, but also reduces the construction and installation costs of the magnetic resonance imaging system.

In one embodiment, the shielding cage 12 includes a top plate 121, a bottom plate 122, and side plates 123 connecting the top plate 121 and the bottom plate 122. The top plate 121, the bottom plate 122 and the side plates 123 together enclose a shielding chamber 12a. It is understood that the material of the top plate 121, the bottom plate 122 and the side plate 123 may be copper or other metal with shielding function. Illustratively, when the top plate 121, the bottom plate 122, and the side plates 123 are copper plates, the thickness of the copper plates may be 0.3mm to 0.7mm.

In a preferred embodiment, the copper plate may have a thickness of 0.5mm. Therefore, on one hand, the weight of the shielding cabin 12 can be reduced, and the field assembly is convenient; on the other hand, the shielding cabin 12 can be ensured to have better shielding effect.

It should be noted that the shielding cavity 12a may be cylindrical or cubic in shape. When the shielding chamber 12a is shaped as a cylinder, the number of the side plates 123 may be only one, and one side plate 123 encloses the side wall of the shielding chamber 12a. When the shielding cavity 12a is in the shape of a cube, the number of the side plates 123 may be four, and the four side plates 123 are sequentially connected to form the side walls of the shielding cavity 12a.

It is understood that wood floor or PVC rubber may be laid on the surface of the bottom plate 122 according to the actual requirements of the user.

In one embodiment, referring to fig. 4, the shielding cage 12 further includes a framework 124, and the top panel 121, the bottom panel 122, and the side panels 123 are disposed on the framework 124. The skeleton 124 may be an aluminum alloy skeleton. The structural strength of the shielding compartment 12 can be enhanced by providing the framework 124, and the shielding compartment 12 is prevented from collapsing.

It is understood that the top plate 121, the bottom plate 122 and the side plates 123 may be connected to the frame 124 by welding, riveting or bonding.

Specifically, the aluminum alloy skeleton may be a lattice-shaped skeleton 124. Therefore, on one hand, the structural strength of the framework 124 is higher, and on the other hand, the waste caused by more materials of the framework 124 can be avoided.

In one embodiment, as shown in fig. 2, the side plate 123 is connected to the magnet 111, and the side plate 123 is provided with a first through hole 1231 communicating with the detection chamber 111a. The magnet 111 may be disposed at the first through hole 1231, and the shielding chamber 12a may communicate with the detection chamber 111a through the first through hole 1231.

Specifically, the magnet 111 may be provided with an end plate (not shown) near one end of the shield compartment 12. The end plate may be integrally provided with the magnet 111, and when the magnet 111 is connected to the shield compartment 12, the end plate is connected to the side plate 123 provided with the first through hole 1231.

It can be understood that the aperture of the first through hole 1231 may be equal to the outer diameter of the end plate, and the size of the aperture of the first through hole 1231 is not limited in the embodiment of the present application, and when the first through hole 1231 is disposed, it is only necessary to ensure that the side plate 123 and the end plate are tightly connected, and then the closed shielding cavity 12a can be formed.

In one embodiment, referring to fig. 2 and 3, the magnetic resonance imaging apparatus 10 further includes a patient bed assembly 14, wherein the patient bed assembly 14 is slidably disposed on the bottom plate 122 and can move in or out of the detection cavity 111a along the axial direction of the first through hole 1231. In particular, the bed assembly 14 can include a bed and a support member disposed on the base plate 122 on which the bed is slidably disposed. In this way, the entry of the subject into the detection chamber 111a can be facilitated.

In one embodiment, side panel 123 is further provided with a hatch 1232 and a viewing window 1233. In this way, on the one hand, the entry of the subject into the shielded room 12 is facilitated; and on the other hand, the doctor can conveniently observe the condition of the examinee outside the shielding chamber 12.

It is understood that the door 1232 may be made of copper or other metal with shielding function, so that the shielding effect of the shielding cage 12 is better. Additionally, door 1232 may be a sliding door or a hinged door. The embodiment of the present application does not limit the type of the hatch 1232.

In one example, the viewing window 1233 can be made by a transparent shield plate. Specifically, the transparent shielding plate may include transparent plates and a shielding mesh sandwiched between the transparent plates. When the shielding plate is made into the transparent shielding plate with the structure, a doctor can see the condition of the examinee in the shielding chamber 12 through the transparent shielding plate. Illustratively, the transparent plate may be made of glass plate, organic glass plate or PE plate, and the shielding net may be made of copper net.

In one embodiment, the magnetic resonance imaging apparatus 10 further comprises: a motor assembly 15 and a control member 16. A first output of the motor assembly 15 is connected to the bed assembly 14 for driving the bed assembly 14 to move. A second output of the motor assembly 15 is connected to the hatch 1232 to drive the hatch 1232 to open or close. The control member 16 is electrically connected to the motor assembly 15. The control member 16 is used to control the opening and closing of the motor assembly 15.

Specifically, the motor assembly 15 may include a first motor and a second motor, an output shaft of the first motor is connected to the bed assembly 14, and the first motor is used for driving the bed assembly 14 to move. An output shaft of the second motor is connected to the hatch 1232, and the second motor is used to drive the hatch 1232 to open or close. The control 16 may include control buttons and a control chip, which are electrically connected. The controls 16 may control the hatch 1232 and the bed assembly 14 in unison.

Illustratively, when the control button is pressed, the control chip controls the first motor and the second motor to work simultaneously, wherein the first motor drives the hospital bed assembly 14 to slide out of the detection cavity 111a, and the second motor drives the hatch 1232 to open. The examinee enters the shielding cabin 12, lies on the sickbed assembly 14, then, presses the control button, and the control chip controls the first motor and the second motor to work simultaneously, wherein the first motor drives the sickbed assembly 14 to slide into the detection cavity 111a, and the second motor drives the cabin door 1232 to close.

It will be appreciated that the hatch 1232 and the bed assembly 14 may also be controlled separately. Illustratively, two control buttons are provided on the control member 16, and the two control buttons respectively control the first motor and the second motor.

In one embodiment, referring to fig. 5, the connection between the top plate 121 and the side plate 123 and the connection between the bottom plate 122 and the side plate 123 are provided with first shielding members 125, and the first shielding members 125 are used for preventing external interference signals from entering the shielding cavity 12a from the connection between the top plate 121 and the side plate 123 and the connection between the bottom plate 122 and the side plate 123. The first shield 125 may be a copper plate, a copper foil, conductive foam, conductive rubber, or the like.

Specifically, taking the top plate 121 and the side plate 123 as an example, after the top plate 121 and the side plate 123 are spliced, a gap exists at the joint of the top plate 121 and the side plate 123, and the first shielding member 125 may be disposed outside the top plate 121 and the side plate 123 and cover the gap to prevent external interference signals from entering the shielding cavity 12a from the gap between the top plate 121 and the side plate 123.

It is understood that when the shielding compartment 12 comprises a plurality of side plates 123, the connection between the side plates 123 and the side plates 123 may also be provided with the first shielding element 125.

In one embodiment, the shielding cabinet 13 includes a cabinet 131 and a cabinet door 132 disposed on the cabinet 131. Wherein, one side of the cabinet 131 departing from the cabinet door 132 and the magnet 111 can be connected by a fastener.

In one embodiment, referring to fig. 6, the cabinet 131 is provided with a second through hole 1311 communicating with the detection chamber 111a. The second through hole 1311 is provided, so that on one hand, the magnet 111 is convenient to repair or maintain from the side where the shielding cabinet 13 is located; and on the other hand facilitates electrical connection of the components within the shielded cabinet 13 with the components within the magnet 111.

Further, a second shield 133 is disposed between the cabinet 131 and the magnet 111, and the second shield 133 is disposed around the second through hole 1311. The second shield 133 may be a conductive foam, a copper sheet, a copper foil, a conductive rubber, or the like. By providing the second shield 133, it is possible to prevent an external interference signal from entering the detection chamber 111a from between the shield cabinet 13 and the magnet 111.

In one embodiment, the magnetic resonance imaging apparatus 11 further comprises an rf component and an rf conversion unit electrically connected. The radio frequency assembly is used for transmitting radio frequency signals to a subject and/or receiving magnetic resonance signals, and may include at least one of an electric dipole antenna, a transverse electromagnetic wave antenna, a loop antenna, and a birdcage antenna. The radio frequency conversion unit is disposed in the cabinet 131. In one example, the radio frequency assembly may be wrapped around a portion of a subject to be examined and follow the subject into the detection cavity 111a. In another example, the radio frequency components may also be integrated on the body bobbin.

In one embodiment, a filter plate 134 is disposed on the cabinet 131, and an external signal line and/or a conducting wire passes through the filter plate 134 and is electrically connected to the mri apparatus 11. The filter plate 134 may filter out current signals that may have an effect on the magnetic resonance apparatus, thereby ensuring proper operation of the magnetic resonance apparatus. This application embodiment is through integrated at shielding cabinet 13 top with filtering board 134, not only can guarantee the shielding performance, can also reduce the integrated degree of difficulty. It is understood that the filter plate 134 may also be disposed on the top or side of the cabinet 131.

In one embodiment, as shown in fig. 6 and 7, the cabinet door 132 includes first and second cabinet doors 1321 and 1322 that cooperate with each other, and a third shielding member 135 is disposed on the first or second cabinet door 1321 or 1322, wherein the third shielding member 135 covers a junction between the first and second cabinet doors 1321 and 1322 when the first and second cabinet doors 1321 and 1322 are closed. The third shield 135 may be a copper reed, conductive foam, conductive rubber, or the like. This ensures that the shielding performance of the shielding cabinet 13 is not affected after the first and second doors 1321, 1322 are closed.

In a second aspect, and with reference to figure 8, the present application provides a magnetic resonance imaging system 1 comprising: the magnetic resonance imaging apparatus 10, the cabinet assembly 20, and the console assembly 30 described above.

The cabinet assembly 20 is disposed at the periphery of the magnetic resonance imaging apparatus 10 and electrically connected to the magnetic resonance imaging apparatus 10. The console assembly 30 is disposed outside the shielded room 12 of the magnetic resonance imaging apparatus 10. The magnetic resonance imaging apparatus 10, the cabinet assembly 20 and the console assembly 30 are located in the same scan room.

Specifically, the cabinet assembly 20 may include a water cooling cabinet, a gradient power amplifying cabinet, an electronic appliance cabinet, and the like, and the console assembly 30 may include a console, a display, a host, a VSM monitor, and the like.

In the magnetic resonance imaging apparatus 10 and the magnetic resonance imaging system 1, the shielding cabin 12 and the shielding cabinet 13 are respectively arranged at the two ends of the magnet 111, so that on one hand, the magnetic resonance imaging device 11 can be ensured to have a good shielding effect when in operation; on the other hand, it is not necessary to specially provide a shield room for placing the magnetic resonance imaging apparatus 11. Therefore, the magnetic resonance imaging apparatus 10, the cabinet assembly 20 and the console assembly 30 can be integrated in the same room, which not only reduces the floor space of the magnetic resonance imaging system 1, but also reduces the construction and installation costs of the magnetic resonance imaging system 1.

In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (14)

1. A magnetic resonance imaging apparatus, characterized by comprising:

a magnetic resonance imaging apparatus (11) comprising a magnet (111) and a detection bore (111 a) extending through the magnet (111);

a shielding cabin (12) arranged on one side of the magnet (111); the shielding cabin (12) encloses a shielding cavity (12 a), and the shielding cavity (12 a) is communicated with one end of the detection cavity (111 a);

and the shielding cabinet (13) is arranged on one side of the magnet (111) far away from the shielding cabin (12) and covers the cavity opening at the other end of the detection cavity (111 a).

2. The magnetic resonance imaging apparatus according to claim 1, wherein the shielding cage (12) comprises a ceiling (121), a floor (122), and side panels (123) connecting the ceiling (121) and the floor (122);

the top plate (121), the bottom plate (122) and the side plate (123) jointly enclose the shielding cavity (12 a).

3. The magnetic resonance imaging apparatus according to claim 2, wherein the shielding cage (12) further comprises a skeleton (124), and the top plate (121), the bottom plate (122), and the side plates (123) are all provided on the skeleton (124).

4. The magnetic resonance imaging apparatus according to claim 2, wherein the side plate (123) is connected to the magnet (111), and a first through hole (1231) communicating with the detection chamber (111 a) is provided in the side plate (123).

5. The MRI apparatus according to claim 4, characterized in that the MRI apparatus (10) further comprises a patient bed assembly (14), the patient bed assembly (14) is slidably arranged on the base plate (122) and can move into or out of the detection chamber (111 a) along the axial direction of the first through hole (1231).

6. The MRI apparatus according to claim 5, wherein the side panel (123) is further provided with a hatch (1232) and a viewing window (1233).

7. The magnetic resonance imaging apparatus according to claim 6, characterized in that the magnetic resonance imaging apparatus (10) further comprises:

the first output end of the motor assembly (15) is connected with the sickbed assembly (14) to drive the sickbed assembly (14) to move; a second output end of the motor assembly (15) is connected with the cabin door (1232) to drive the cabin door (1232) to open or close;

a control member (16) electrically connected with the motor assembly (15); the control part (16) is used for controlling the opening and closing of the motor assembly (15).

8. The magnetic resonance imaging apparatus according to claim 2, wherein a junction of the top plate (121) and the side plate (123) and a junction of the bottom plate (122) and the side plate (123) are each provided with a first shielding member (125), and the first shielding member (125) is configured to prevent external interference signals from entering the shielding cavity (12 a) from the junction of the top plate (121) and the side plate (123) and the junction of the bottom plate (122) and the side plate (123).

9. The magnetic resonance imaging apparatus according to any one of claims 1-8, wherein the shielding cabinet (13) comprises a cabinet body (131) and a cabinet door (132) provided on the cabinet body (131); wherein, the side of the cabinet body (131) departing from the cabinet door (132) is connected with the magnet (111).

10. The magnetic resonance imaging apparatus according to claim 9, wherein the cabinet (131) is provided with a second through hole (1311) communicating with the detection chamber (111 a);

a second shielding piece (133) is arranged between the cabinet body (131) and the magnet (111), and the second shielding piece (133) is arranged around the second through hole (1311).

11. A magnetic resonance imaging apparatus according to claim 9, characterized in that the magnetic resonance imaging device (11) further comprises an electrically connected radio frequency component and a radio frequency conversion unit; the radio frequency assembly is used for sending radio frequency signals to a detected person and/or receiving magnetic resonance signals, and the radio frequency conversion unit is arranged in the cabinet body (131).

12. The mri apparatus according to claim 9, wherein a filter plate (134) is disposed on the cabinet (131), and external signal lines and/or wires are electrically connected to the mri device (11) after passing through the filter plate (134).

13. The magnetic resonance imaging apparatus according to claim 9, wherein the cabinet door (132) comprises a first cabinet door (1321) and a second cabinet door (1322) which are engaged with each other, and a third shielding member is disposed on the first cabinet door (1321) or the second cabinet door (1322), and covers a joint of the first cabinet door (1321) and the second cabinet door (1322) when the first cabinet door (1321) and the second cabinet door (1322) are closed.

14. A magnetic resonance imaging system, comprising:

the magnetic resonance imaging device (10) as set forth in any one of claims 1-13;

the cabinet assembly (20) is arranged at the periphery of the magnetic resonance imaging device (10) and is electrically connected with the magnetic resonance imaging device (10);

a console assembly (30) arranged outside a shielding cabin (12) of the magnetic resonance imaging device (10);

wherein the magnetic resonance imaging apparatus (10), the cabinet assembly (20) and the console assembly (30) are located within the same scanning room.

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