Shielding cabin with threading hole and magnetic resonance system

Abstract

The utility model provides a shielding cabin with threading holes and a magnetic resonance system. A threading hole is formed in the shielding cabin, and a shielding pipe is arranged at the threading hole and is connected with the shielding cabin, so that the medical pipeline accessory can penetrate into the shielding cabin from the threading hole to be in contact with a patient; and the shielding tube is also used for shielding or attenuating interference signals entering the shielding cabin from the threading hole. According to the utility model, the threading hole is formed in the shielding cabin, so that medical pipeline accessories can penetrate into the shielding cabin from the threading hole so as to be in contact with a patient; by means of the shielding tube arranged at the threading hole, interference signals entering the shielding cabin from the threading hole are shielded or attenuated, so that the threading hole is prevented from damaging the shielding performance of the shielding cabin, it is ensured that the shielding cabin can provide a good shielding environment for magnetic resonance, it is ensured that the magnetic resonance obtains excellent imaging, and a reliable basis is provided for treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic resonance shielding, in particular to a shielding cabin with threading holes and a magnetic resonance system. Background Art

[0002] Magnetic resonance imaging signals are very susceptible to interference from external electromagnetic signals, so they must be installed in an electromagnetic shielding environment to achieve the best imaging effect.

[0003] The Chinese publication number is: CN 205718070 U, which discloses an electromagnetic shielding cabin, including a shielding track; a shielding cabin, which is slidably arranged on the shielding track, and a sliding shielding structure is provided between the shielding cabin and the shielding track to attenuate or shield electromagnetic waves; a first opening end of the shielding cabin is provided with a docking shielding interface to connect with a magnetic resonance body; a shielding door, which is rotatably arranged and connected to the second opening end of the shielding cabin, and an end surface of the second opening end is provided with an elastic shielding structure to enable conductive contact between the shielding door and the shielding cabin when the shielding door is closed.

[0004] The electromagnetic shielding cabin provided by the above technical solution forms a closed shielding cavity through the shielding door and the shielding cabin, which replaces the original shielding room function and provides a good shielding environment for magnetic resonance. However, during the scanning process, the patient needs to use some non-MRI-specific medical equipment (such as ventilators, monitors, etc.). These devices need to keep in contact with the patient. The electromagnetic shielding cabin forms a closed shielding cavity, which causes the non-MRI-specific medical equipment to be separated from the patient outside and inside the shielding cavity, and they cannot be in contact. As a result, the non-MRI-specific medical equipment cannot be used at the same time as the MRI scan or the non-MRI-specific medical equipment is cumbersome to use. Summary of the invention

[0005] In view of this, the utility model proposes a shielding cabin with threading holes and a magnetic resonance system, aiming to solve the problem that the existing electromagnetic shielding cabin separates non-MRI-specific medical equipment and patients outside and inside the shielding cavity, resulting in a lack of contact and making it impossible to use or cumbersome to use during MRI scanning.

[0006] The utility model proposes a shielding cabin with a threading hole, wherein the shielding cabin is provided with a threading hole, and a shielding tube is provided at the threading hole, which is connected to the shielding cabin so that medical pipeline accessories can pass through the threading hole into the interior of the shielding cabin to contact a patient, and the shielding tube is also used for shielding or attenuating interference signals entering the shielding cabin from the threading hole.

[0007] Furthermore, in the above-mentioned shielding cabin with threading holes, a shielding structure is provided on the inner wall of the shielding tube for reflecting at least part of the interference signal entering into the shielding tube to absorb or attenuate the interference signal.

[0008] Furthermore, in the above-mentioned shielding cabin with threading holes, the shielding structure is a protrusion structure, and the protrusion structure is sawtooth-shaped, square cone-shaped or external spline-shaped; or, the shielding structure is a groove structure, and the groove structure is a conical or trapezoidal structure.

[0009] Furthermore, in the above-mentioned shielding cabin with threading holes, the shielding structure is arranged along the inner wall of the shielding tube in a whole circle, and the shielding structure is a plurality of circles and is arranged sequentially along the length direction of the shielding tube; or, the shielding structure is arranged in a spiral structure.

[0010] Furthermore, in the above-mentioned shielding cabin with threading holes, a protective layer is provided inside the shielding tube on the inner periphery of the shielding structure, for protecting medical pipeline accessories passing through the shielding tube.

[0011] Furthermore, in the above-mentioned shielding cabin with threading holes, the protective layer is made of insulating material, and the inner wall of the protective layer is a smooth surface.

[0012] Furthermore, in the above-mentioned shielding cabin with threading holes, a flange is provided at the end of the shielding tube for connecting to the shielding cabin.

[0013] Furthermore, in the above-mentioned shielding cabin with threading holes, the shielding tube is arranged outside the shielding cabin, and the shielding tube extends to the outside of the shielding cabin.

[0014] On the other hand, the utility model also provides a magnetic resonance system, which is provided with the above-mentioned shielding cabin with threading holes.

[0015] Further, the above-mentioned magnetic resonance system also includes: a scanning bed assembly and a magnetic resonance body; wherein the scanning bed assembly is arranged on one side of the magnetic resonance body, and the shielding cabin is arranged on the scanning bed assembly; the threading hole arranged on the shielding cabin is arranged at the docking position between the shielding cabin and the scanning bed assembly; and / or the threading hole arranged on the shielding cabin is arranged at the docking position between the shielding cabin and the magnetic resonance body; and / or the threading hole arranged on the shielding cabin is arranged on the shielding cabin as a whole.

[0016] The shielding cabin with threading holes and the magnetic resonance system provided by the utility model can be provided with threading holes on the shielding cabin so that medical pipeline accessories can be passed through the threading holes to the inside of the shielding cabin to contact the patient; the shielding tube provided at the threading holes can shield or attenuate the interference signal entering the shielding cabin from the threading holes to avoid the threading holes from damaging the shielding performance of the shielding cabin, ensuring that the shielding cabin can provide a good shielding environment for magnetic resonance, ensuring that the magnetic resonance obtains excellent imaging, and providing a reliable basis for treatment. At the same time, the shielding cabin and the magnetic resonance system can use non-MRI-specific medical equipment, such as a ventilator, while performing magnetic resonance scanning, solving the problem that existing magnetic resonance scanning examinations are incompatible with non-MRI-specific medical equipment, and realizing the uninterrupted use of non-MRI-specific medical equipment, so that while performing magnetic resonance scanning on the patient, respiratory support can be provided uninterruptedly or intermittently for a short time to maintain the patient's life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of the structure of a magnetic resonance system provided by an embodiment of the utility model;

[0019] Figure 2 A schematic structural diagram of a shielding cabin with threading holes provided in an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of signal propagation in a shielding cabin with threading holes provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of a shielding cabin with a threading hole for shielding signals provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of a shielding cabin with a threading hole provided in an embodiment of the utility model for signal reflection through a shielding structure;

[0023] Figure 6 A schematic diagram of the shielding cabin with threading holes provided in an embodiment of the utility model for multiple signal reflections through a shielding structure;

[0024] Figure 7 A schematic diagram of the structure of a shielding tube provided in an embodiment of the utility model;

[0025] Figure 8 The present invention is another schematic diagram of the structure of the shielding tube provided in the embodiment of the present invention. DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] See also Figure 1 , which is a schematic diagram of the structure of the magnetic resonance system provided by the embodiment of the utility model. As shown in the figure, the magnetic resonance system comprises: a shielding cabin 1 with a threading hole, a scanning bed component 2 and a magnetic resonance body 3; wherein the scanning bed component 2 is arranged on one side of the magnetic resonance body 3 (such as Figure 1 The right side shown in the figure), and the shielding cabin 1 is arranged on the scanning bed assembly 2.

[0028] During specific implementation, the scanning bed assembly 2 is arranged on one side of the magnetic resonance body 3 to support the patient, so that the patient's head can be inserted into the magnetic resonance body 3 for scanning; at the same time, the shielding cabin 1 is arranged on the scanning bed assembly 2 and can be connected to the magnetic resonance body 3 to form a shielding cavity, which can provide a good shielding environment for the magnetic resonance, so as to ensure that the magnetic resonance obtains excellent imaging and provide a reliable basis for treatment.

[0029] Continue to see Figure 1 and Figure 2 The shielding cabin 1 is provided with a threading hole 11. Specifically, the position of the threading hole 11 can be determined according to actual conditions, such as Figure 1 As shown, the threading hole 11 can be set at the docking position between the shielding cabin 1 and the scanning bed assembly 2; preferably, the threading hole 11 includes two semicircular interfaces, which are respectively set on the shielding cabin 1 and the scanning bed assembly 2, or respectively set on the shielding cabin 1 and the magnetic resonance body 3. After the shielding cabin is removed, the medical threading accessories can be placed in the semicircular interfaces, and then the shielding cabin 1 is covered, which is convenient to operate, so that the two semicircular interfaces are docked to form a threading hole. In other embodiments, such as Figure 2 As shown, the threading hole 11 can also be arranged on the shielding cabin 1 as a whole, that is, the threading hole 11 is arranged on the shielding cabin 1, which can facilitate signal shielding processing at the threading hole 11. Among them, the shielding cabin 1 can be provided with multiple threading holes 11 to thread multiple medical pipeline accessories respectively.

[0030] From the perspective of medical equipment, the threading hole 11 is located close to the magnetic resonance body 3, that is, close to the patient, which can shorten the use length of the medical accessories and improve the effectiveness and reliability of the medical equipment. From another perspective, the closer to the magnetic resonance body 3, the easier it is for the threading hole 11 to introduce interference and affect the use of magnetic resonance, and the greater the design difficulty.

[0031] Continue to see Figure 2 In order to reduce the interference introduced by setting the threading hole 11, a shielding tube 12 is provided at the threading hole 11, which is connected to the shielding cabin 1, so that the medical pipeline accessories (not shown in the figure) can pass through the threading hole 11 to the inside of the shielding cabin 1 to contact the patient. The shielding tube 12 is used to shield or attenuate the interference signal entering the shielding cabin 1 from the threading hole 11. Specifically, the threading hole 11 is provided with a shielding tube 12, which can be set outside the shielding cabin 1, and the shielding tube 12 is extended to the outside of the shielding cabin 1 (such as Figure 2 That is, one end of the shielding tube 12 is connected to the outer wall of the shielding cabin 1, and the shielding tube 12 and the shielding cabin 1 can be conductively connected to achieve integrated interference signal shielding. Figure 2 The shielding tube 12 may be freely arranged outside the shielding cabin 1 to shield or attenuate interference signals entering the shielding tube 12 from the threading hole 11. Medical pipeline accessories may pass through the shielding tube 12 and penetrate into the shielding cabin 1 to contact the patient, and non-MRI-specific medical equipment may be used during the MRI scanning process. In this embodiment, the shielding tube 12 may be a soft tube or a hard tube, and no limitation is made in this embodiment. Of course, the shielding tube 12 may also be a shielding plug or other structure, which may be detachably shielded and sealed.

[0032] In this embodiment, at the same frequency, the shielding effect of the shielding tube 12 is related to the aspect ratio of the shielding tube 12. The larger the aspect ratio, the better the shielding effect. Since the diameter that the medical pipeline accessories need to occupy is fixed, the diameter of the shielding tube 12 can be determined based on the outer diameter of the medical pipeline accessories; then the shielding effect is only related to the length of the shielding tube 12. The longer the length of the shielding tube 12, the better the shielding effect. That is to say, the closer the threading hole 11 is set to the magnetic resonance body 3, the longer the length of the shielding tube 12, and the farther the threading hole 11 is set to the magnetic resonance body 3, the shorter the length of the shielding tube 12. Even in some environments where the external interference is not too strong, there is no need to set the shielding tube 12 in the area far away from the magnetic resonance body 3. In order to avoid interference from interference signals, preferably, each threading hole 11 is provided with a shielding tube 12.

[0033] Since the shielding tube 12 is too long, it not only increases the outer dimensions of the equipment, but also easily hits people or equipment during use, requiring safety protection.

[0034] See also Figure 3 , which is a schematic diagram of signal propagation in a shielding cabin with threading holes provided by an embodiment of the utility model. Analyzing the working principle of the shielding tube 12 from the direction of interference signal propagation, as shown in the figure, the direction of the interference signal in an open environment is random. After the interference signal propagates to the shielding cabin 1, a part of it is absorbed and the other part is reflected. The part of the signal absorbed by the shielding cabin 1 is consumed inside the shielding cabin 1 and will not enter the shielding cabin 1. As for the threading holes 11 and the shielding tube 12, from the structure of the shielding tube 12, only the interference signal that enters the opening of the shielding tube 12 may enter the shielding cabin 1.

[0035] See also Figure 4 , which is a schematic diagram of shielding signals in a shielding cabin with threading holes provided by an embodiment of the utility model. When the inside of the shielding tube 12 is a smooth surface, the signal parallel to the shielding tube 12 must directly enter the shielding cabin 1, which is inevitable. As shown in the figure, although the interference signal from other directions is attenuated after several reflections, it will still enter the inside of the shielding cabin 1.

[0036] See also Figure 5 to Figure 6 , which illustrates the principle of signal reflection through a shielding structure in a shielding cabin with threading holes provided in an embodiment of the utility model. As shown in the figure, in order to improve the shielding effect of the shielding tube 12 and to reduce the length that can be set for the shielding tube 12, combined with the propagation direction of the interference signal, preferably, a shielding structure 121 is provided on the inner wall of the shielding tube 11, which is used to reflect at least part of the interference signal entering the shielding tube 12 to absorb or attenuate the interference signal, and can effectively block the propagation of part of the interference signal that is not parallel to the shielding tube 12, thereby improving the shielding performance of the shielding tube 12, so that a large part of the interference signal is reflected out of the shielding cabin 1 by the inner wall of the shielding tube 12 provided with the shielding structure 121. As shown Figure 6 As shown, even if some interference signals still enter the shielding cabin 1 after multiple reflections, they pass through a longer path and are reflected multiple times, and the signals will be greatly attenuated.

[0037] Continue to see Figures 5 to 8 The shielding structure 121 may be a convex structure, so that the inner wall of the shielding tube 12 has a concave-convex structure to ensure that the interference signal can be absorbed or attenuated. Preferably, the convex structure may be in a sawtooth shape, a square cone shape or an external spline shape; in particular, Figure 8 As shown in the figure, the square cone or four-cone structure can reflect interference signals from more directions. Figure 8 As shown, according to environmental requirements, the shielding structure 121 can also be a groove structure, and the groove structure can be a conical or trapezoidal structure, such as a plurality of conical or trapezoidal ring grooves, which is relatively simple to process and can reduce the processing difficulty compared to the protruding structure. Among them, the protruding structure can also be an external spline or other protruding structures.

[0038] In this embodiment, if Figures 5 to 8 As shown, the shielding structure 121 is arranged along the inner wall of the shielding tube 12 in a full circle, and the shielding structure 121 is multiple circles and arranged in sequence along the length direction of the shielding tube 12; of course, the shielding structure 121 can also be arranged in a spiral structure.

[0039] Continue to see Figures 5 to 8 As shown, the inner wall of the shielding tube 12 will have many sharp edges to prevent it from damaging the medical line accessories passing through it, such as Figure 8 As shown, a protective layer 122 is provided inside the shielding tube 12 on the inner periphery of the shielding structure 121, which is used to protect the medical pipeline accessories passing through the shielding tube 12. Specifically, the protective layer 122 can be made of insulating material, and the inner wall of the protective layer 122 is a smooth surface, which plays a protective role on the medical pipeline accessories.

[0040] Continue to see Figure 7 The end of the shielding tube 12 is provided with a flange 123 for connecting to the shielding cabin 1. Specifically, the flange 123 can be provided with a mounting hole so as to be fixed to the shielding cabin 1 by bolts or other connectors, thereby achieving connection and fixation between the shielding tube 12 and the shielding cabin 1, and also achieving electrical connection between the two.

[0041] In summary, the shielding cabin and magnetic resonance system with threading holes provided in this embodiment, through the threading holes 11 set on the shielding cabin 1, medical pipeline accessories can be inserted from the threading holes 11 into the interior of the shielding cabin 1 to contact the patient; through the shielding tube 12 set at the threading hole 11, the interference signal entering the shielding cabin 1 from the threading hole 12 is shielded or attenuated to avoid the threading hole 11 from destroying the shielding performance of the shielding cabin 1, ensuring that the shielding cabin 1 can provide a good shielding environment for magnetic resonance, so as to ensure that the magnetic resonance obtains excellent imaging and provide a reliable basis for treatment. At the same time, the shielding cabin and magnetic resonance system can use non-nuclear magnetic resonance dedicated medical equipment, such as a ventilator, while performing magnetic resonance scanning, and can provide respiratory support during magnetic resonance scanning to maintain the patient's life, solving the problem that existing magnetic resonance scanning examinations are incompatible with non-nuclear magnetic resonance dedicated medical equipment, and realizing the uninterrupted use of non-nuclear magnetic resonance dedicated medical equipment.

[0042] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shielding cabin with a threading hole, characterized in that: The shielding cabin is provided with a threading hole, and a shielding tube is provided at the threading hole, which is connected to the shielding cabin so that medical pipeline accessories can pass through the threading hole into the interior of the shielding cabin to contact the patient. The shielding tube is also used to shield or attenuate interference signals entering the shielding cabin from the threading hole.

2. The shielding cabin with threading holes according to claim 1, characterized in that: A shielding structure is provided on the inner wall of the shielding tube, which is used to reflect at least part of the interference signal entering the shielding tube, so as to absorb or attenuate the interference signal.

3. The shielding cabin with threading holes according to claim 2, characterized in that: The shielding structure is a convex structure, and the convex structure is in a sawtooth shape, a square cone shape or an external spline shape; or, The shielding structure is a groove structure, and the groove structure is a conical or trapezoidal structure.

4. The shielding cabin with threading holes according to claim 2, characterized in that: The shielding structure is arranged along the inner wall of the shielding tube in a whole circle, and the shielding structure is a plurality of circles and is arranged in sequence along the length direction of the shielding tube; or, The shielding structure is arranged in a spiral structure.

5. The shielding cabin with threading holes according to claim 2, characterized in that: A protective layer is provided inside the shielding tube on the inner periphery of the shielding structure, for protecting the medical pipeline accessories passing through the shielding tube.

6. The shielding cabin with threading holes according to claim 5, characterized in that: The protective layer is made of insulating material, and the inner wall of the protective layer is a smooth surface.

7. The shielding cabin with threading holes according to any one of claims 1 to 6, characterized in that: The end of the shielding tube is provided with a flange for connecting to the shielding cabin.

8. The shielding cabin with threading holes according to any one of claims 1 to 6, characterized in that: The shielding pipe is arranged outside the shielding cabin, and the shielding pipe extends toward the outside of the shielding cabin.

9. A magnetic resonance system, characterized in that: A shielding cabin with threading holes as claimed in any one of claims 1 to 8 is provided.

10. The magnetic resonance system according to claim 9, characterized in that Also includes: A scanning bed assembly and a magnetic resonance main body; wherein, The scanning bed assembly is arranged on one side of the magnetic resonance body, and the shielding cabin is arranged on the scanning bed assembly; The threading hole provided on the shielding cabin is provided at the docking position between the shielding cabin and the scanning bed assembly; and / or the threading hole provided on the shielding cabin is provided at the docking position between the shielding cabin and the magnetic resonance body; And / or, the threading hole provided on the shielding cabin is provided on the shielding cabin as a whole.

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