CN108547557B - Flexible radio frequency shielding door and magnetic resonance equipment - Google Patents
Flexible radio frequency shielding door and magnetic resonance equipment Download PDFInfo
- Publication number
- CN108547557B CN108547557B CN201810641016.9A CN201810641016A CN108547557B CN 108547557 B CN108547557 B CN 108547557B CN 201810641016 A CN201810641016 A CN 201810641016A CN 108547557 B CN108547557 B CN 108547557B
- Authority
- CN
- China
- Prior art keywords
- base
- radio frequency
- shielding
- door
- door frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims description 7
- 230000002238 attenuated effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002595 magnetic resonance imaging Methods 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/18—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against harmful radiation
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
- E06B1/526—Frames specially adapted for doors for door wings that can be set up to open either left or right, outwards or inwards, e.g. provided with grooves for easily detachable hinges or latch plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/42—Screening
Abstract
The application relates to a flexible radio frequency shielding door and magnetic resonance equipment, comprising: the shielding support comprises a first base and a second base, the first base is fixed on the magnetic resonance equipment, and the second base is fixedly connected with the first base; and the door frame assembly comprises a first side and a second side, the first side of the door frame assembly is fixedly connected with the first base, the second side is abutted to the second base, and the second side can rotate relative to the first side, so that the door frame assembly has a folded state and an unfolded state: when the door frame assembly is in a folded state, the flexible radio frequency shielding door is opened; when the door frame assembly is in the unfolding state, the flexible radio frequency shielding door is closed, and a shielding piece is arranged on the shielding support corresponding to the connection position of the shielding support and the first side and/or the second side, so that radio frequency shielding is realized at the connection position of the shielding support and the door frame assembly. The flexible radio frequency shielding door is simple in structure, has a large observation field of view, is fewer in parts, and can achieve a good radio frequency shielding effect simply.
Description
Technical Field
The application relates to magnetic resonance equipment, in particular to a flexible radio frequency shielding door and magnetic resonance equipment.
Background
The MRI uses a human body placed in a magnet and emits a radio frequency signal to excite atomic nuclei in the human body, thereby generating resonance phenomenon, weak resonance signals in the human body are released and received after the excitation signal is closed, and the signal reconstruction is carried out by combining a gradient positioning technology after receiving and amplifying, so as to obtain the magnetic resonance imaging of human tissues.
In the field of magnetic resonance imaging, external interference signals can bring adverse effects to system imaging, so that noise points and even artifacts of images are caused, and the quality of the images is affected. Therefore, in the conventional imaging system, in order to shield the external interference signal, a shielding system needs to be established. At present, in the field of magnetic resonance, the shielding system is generally a shielding room, the shielding room can isolate the magnetic resonance system from external interference, the shielding room is high in construction difficulty, long in construction process and large in capital investment, and the shielding room is to be optimized from the aspect of time and capital investment. In order to solve the above problems, a self-shielding system is used in some application fields, however, the existing self-shielding system has a complex structure and a limited viewing field.
Disclosure of Invention
Based on the above, it is necessary to provide a flexible radio frequency shielding door and a magnetic resonance device, which solve the problems that the existing self-shielding system has a complex structure and a limited viewing field.
A flexible radio frequency shield door comprising:
the shielding support comprises a first base and a second base, the first base is fixed on the magnetic resonance equipment, and the second base is fixedly connected with the first base; a kind of electronic device with high-pressure air-conditioning system
The door frame subassembly, including first side and second side, first side fixed connection in first base, the second side butt in the second base, the second side can rotate relative first side, thereby makes the door frame subassembly has folding state and expansion state:
when the door frame assembly is in a folded state, the second side is close to the first side, and the door frame assembly is opened so that the flexible radio frequency shielding door is opened;
when the door frame assembly is in the unfolding state, the second side is abutted to the shielding support and is in tight continuous electrical connection with the shielding support, the door frame assembly is closed to enable the flexible radio frequency shielding door to be closed, and a shielding piece is arranged on the shielding support corresponding to the connection position of the shielding support and the first side and/or the second side, so that radio frequency shielding is achieved at the connection position of the shielding support and the door frame assembly.
In one embodiment, the door frame assembly includes a base plate and a retractable door member, one end of the retractable door member is fixedly connected to the base plate, the other end of the retractable door member is fixedly connected to the first base, the base plate is rotatably connected to the shielding support, and the retractable door member is compressed or stretched during rotation of the base plate, so that the door frame assembly has a folded state and an unfolded state.
In one embodiment, the expansion door member includes an expansion piece, one end of the expansion piece is fixedly connected to the base plate, the other end of the expansion piece is fixedly connected to the first base, and the expansion piece is made of a flexible shielding material.
In one embodiment, the telescoping member is made of a transparent material.
In one embodiment, the first base is provided with a first through hole, the first through hole is communicated with a scanning channel in the magnetic resonance equipment, the first base is provided with a first shielding piece, and the first shielding piece is arranged around the first through hole.
In one embodiment, a first boss is arranged at one end, far away from the first base, of the second base, a first groove is formed in the first boss, a second groove is formed in the first groove, the depth of the second groove is larger than that of the first groove, a locking plate is arranged in the first groove, the locking plate covers the second groove, a lock hole is formed in the locking plate, a locking piece is arranged on the door frame assembly and penetrates through the lock hole to be inserted into the second groove, so that locking of the door frame assembly and the shielding support is completed, a second shielding piece is arranged in the first groove, and the second shielding piece is arranged around the locking piece.
In one embodiment, the second base is further provided with a chute, the chute is communicated with a scanning channel of the magnetic resonance device, a third shielding piece is arranged on the second base, and the third shielding piece surrounds the first boss and the chute.
In one embodiment, a second boss is disposed on a surface of the substrate, which is close to the second base, and when the substrate abuts against the second base, the second boss abuts against the second base, an annular protruding edge is disposed on a surface of the second boss, which is close to the second base, and the locking piece is disposed in the annular protruding edge.
In one embodiment, the second boss is provided with a plurality of through grooves, the second through holes are communicated with the outside through the through grooves, when the flexible radio frequency shielding door is in a closed state, the second boss is in tight electrical connection with the second base, the scanning channel of the magnetic resonance device is communicated with the outside through the through grooves, the inner diameter of the through grooves meets the requirement that when a radio frequency signal passes through the through grooves, the radio frequency signal is continuously attenuated along with continuously penetrating into the through grooves, and finally attenuated into a weak signal which does not disturb the use of the magnetic resonance device.
The magnetic resonance equipment comprises a magnet and a flexible radio frequency shielding door, wherein a scanning channel is arranged in the magnet, the flexible radio frequency shielding door is arranged corresponding to the scanning channel and is fixed on the magnet, and the flexible radio frequency shielding door is any one of the flexible radio frequency shielding doors.
Above-mentioned flexible radio frequency shielding door and magnetic resonance equipment, through door frame assembly's first side fixed connection in first base, the second side butt in the second base, the second side can be relative first side rotates to make door frame assembly can open, when closed, correspond on the shielding support with the junction of first side and/or second side is provided with the shield, thereby shielding support with the junction of door frame assembly realizes radio frequency shielding, has comparatively open observation field of vision. In addition, the flexible radio frequency shielding door has the advantages of simple structure, fewer parts, light weight and low cost, and can simply realize a better radio frequency shielding effect.
Drawings
FIG. 1 is a schematic view of a flexible RF-shielding door according to an embodiment of the present application;
FIG. 2 is a schematic view of an exploded view of a flexible RF-shielding door according to an embodiment of the present application;
FIG. 3 is a schematic view of a shielding support of a flexible RF-shielding door according to an embodiment of the present application;
FIG. 4 is a schematic view of a partial exploded view of a shield mount of a flexible radio frequency shield door according to an embodiment of the present application;
FIG. 5 is a schematic view of an exploded view of a door frame assembly of a flexible radio frequency shield door according to an embodiment of the present application;
FIG. 6 is a schematic view of a partial structure of a door frame assembly of a flexible radio frequency shield door according to an embodiment of the present application;
fig. 7 is a schematic view showing a structure of a base plate of a door frame assembly of a flexible radio frequency shielding door according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a magnetic resonance apparatus according to an embodiment of the present application.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the application. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" 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," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, fig. 1 and 2 schematically illustrate a flexible rf-shielding door 10 according to an embodiment of the present application, the flexible rf-shielding door 10 includes a shielding bracket 110 and a door frame assembly 120, the door frame assembly 120 includes a first side 120a and a second side 120b, the first side 120a is fixedly connected to the shielding bracket 110 and is in a tightly continuous electrical connection with the shielding bracket 110, the second side 120b can rotate relative to the first side 120a, so that the door frame assembly 120 has a folded state and an unfolded state, when the door frame assembly 120 is in the folded state, the second side 120b is close to the first side 120a, and the door frame assembly 120 is opened, so that the flexible rf-shielding door 10 is opened; when the door frame assembly 120 is in the unfolded state, the second side 120b abuts against the shielding support 110, so that a tight continuous electrical connection with the shielding support 110 is realized, the door frame assembly 120 is closed, so that the flexible radio frequency shielding door 10 is closed, and shielding pieces are arranged on the shielding support 110 corresponding to the connection part of the shielding support 110 and the first side 120a and/or the second side 120b of the door frame assembly 120, so that radio frequency shielding is realized at the connection part of the shielding support 110 and the door frame assembly 120.
The shielding support 110 includes a first base 112 and a second base 114, the first base 112 is fixed on the magnetic resonance apparatus, the second base 114 is fixedly connected to the first base 112, a first side 120a of the door frame assembly 120 is fixedly connected to the first base 112, and a second side 120b abuts against the second base 114. In the illustrated embodiment, the first base 112 is disposed perpendicular to the second base 114, and it is understood that in other embodiments, the first base 112 and the second base 114 may be disposed at other angles, such as an acute angle or an obtuse angle.
With continued reference to fig. 3 and 4, in some embodiments, the first base 112 is provided with a first protrusion 1121, and a space is provided between the first protrusion 1121 and an outer edge of the first base 112, so that a first mounting band 1122 is formed between the first protrusion 1121 and the outer edge of the first base 112, and the first side 120a of the door frame assembly 120 is fixedly connected to the first mounting band 1122.
In order to facilitate the communication between the flexible rf shielding door 10 and the scanning channel in the magnetic resonance apparatus, a first through hole 112a is disposed on the first base 112, and the first through hole 112a is communicated with the scanning channel in the magnetic resonance apparatus. In some embodiments, a first shield (not shown) is disposed on the first base 112, and the first shield is disposed around the first through hole 112 a. In a specific embodiment, a groove (not shown) may be formed on a side of the first base 112 facing away from the first protrusion 1121 and corresponding to a position of the first protrusion 1121, where the first shielding member is partially received in the groove and is at least partially exposed out of the groove. Of course, in other embodiments, the first shielding member may be directly fixed to the side of the first base 112 facing away from the first protrusion 1121 without providing a groove, and the fixing manner may be any fixing manner such as screw fixing or tight fitting.
In some embodiments, the second base 114 is provided with a chute 114a, the chute 114a being in communication with a scanning channel of the magnetic resonance apparatus, such that a living being to be scanned can be fed into the scanning channel through the chute 114 a. The chute 114a communicates with the first through hole 112 a.
In order to lock and fix the door frame assembly 120 and the shielding bracket 110 when the second side 120b of the door frame assembly 120 abuts against the second base 114, in some embodiments, a first boss 1141 is disposed at an end of the second base 114 away from the first base 112, a first groove 114c is disposed on the first boss 1141, and the first groove 114c is covered by a locking plate 1142, a locking hole 114d is disposed on the locking plate 1142, and the first groove 114c communicates with the outside through the locking hole 114 d. At this time, a locking member 1224 may be provided with the second side 120b of the door frame assembly 120, and the locking member 1224 is inserted into the first groove 114c through the locking hole 114d, thereby locking the door frame assembly 120 with the shielding bracket 110. In some embodiments, in order to realize shielding at the lock hole 114d, a second shielding member 1143 is disposed in the first groove 114c, and the second shielding member 1143 is annular and is fixed on a side wall of the first groove 114c, so that when the locking member 1224 is inserted into the first through hole 112a, the second shielding member 1143 surrounds the locking member 1224, thereby realizing stronger radio frequency shielding.
To enhance radio frequency shielding at the keyhole 114d, in some embodiments, a second groove 114e is disposed within the first groove 114c, and the second groove 114e has a depth greater than the depth of the first groove 114 c. The locking plate 1142 is disposed in the first groove 114c and covers the second groove 114e, and the second shielding member 1143 is received in the first groove 114c and fixedly connected to a sidewall of the first groove 114 c. By the above arrangement, the second shield 1143 can be made to achieve complete radio frequency shielding of the lock when the locking member 1224 is locked.
The second base 114 is provided with a third shielding member 1144, and the third shielding member 1144 is disposed around the first boss 1141 and the sliding groove 114a, so as to achieve sufficient radio frequency shielding when the second side 120b of the door frame assembly 120 abuts against the second base 114.
The first, second and third shields 1143, 1144 may be flexible or resilient shields to achieve tighter rf shielding. Of course, those skilled in the art will appreciate that in embodiments where the radio frequency shielding requirements are relatively low, the first, second and third shields 1143, 1144 may also be rigid shields.
With continued reference to fig. 5 to 7, the door frame assembly 120 includes a base plate 122 and a retractable door member 124, one end of the retractable door member 124 is fixedly connected to the base plate 122, the other end is fixedly connected to the first mounting belt 1122 of the first base 112, the base plate 122 is rotatably connected to the shielding support 110, and during the rotation of the base plate 122, the retractable door member 124 is compressed or stretched, so that the door frame assembly 120 has a folded state and an unfolded state.
In a specific embodiment, a connection boss 116 (see fig. 2) is disposed at a connection point between the first base 112 and the second base 114, and the base plate 122 is rotatably connected to the connection boss 116, so that the base plate 122 can rotate relative to the shield support 110. In the illustrated embodiment, two of the connection bosses 116 are provided, and the two connection bosses 116 are located at both sides of the chute 114a, respectively. Those skilled in the art will appreciate that in other embodiments, one, three, or four of the number of the connection bosses 116 may be provided. In a specific embodiment, a damping member (not shown) may be further provided, and the base plate 122 is rotatably connected to the connection boss 116 through the damping member, so that the door frame assembly 120 may stay at any position.
The base plate 122 is provided with a second through hole 122a, a first step 1221 is provided at an edge of the second through hole 122a on the base plate 122, and the expansion gate member 124 is fixedly connected to the first step 1221.
In some embodiments, a second boss 1222 is disposed on a surface of the substrate 122 near the second base 114, the first boss 1141 is disposed with a recess 114b corresponding to the second boss 1222, and when the substrate 122 abuts against the second base 114, the second boss 1222 abuts against the recess 114b. The locking member 1224 is disposed on the second tab 1222.
In some embodiments, an annular flange 1223 is disposed on a surface of the second boss 1222 near the second base 114, the locking member 1224 is received in the annular flange 1223, and when the substrate 122 abuts against the second base 114, the locking member 1224 extends into the second recess 114e and locks with the locking plate 1142, and the annular flange 1223 is received in the first recess 114c and presses the second shielding member 1143 in the circumferential direction, thereby forming a tight rf shielding.
In some embodiments, the second boss 1222 is provided with a plurality of through slots 122b, and the second through holes 122a are communicated with the outside through the through slots 122b, so that when the flexible radio frequency shielding door 10 is in the closed state, the scanning channel of the magnetic resonance apparatus can be communicated with the outside through the through slots 122 b. By providing the through slot 122b, it is possible to facilitate connection between the inside and the outside of the scanning channel, for example, a tubular object of an anesthesia tube life monitor or the like which is clinically required for anesthesia of the scanning body needs to be connected from the outside to the inside of the scanning channel. The inner diameter of the through slot 122b is such that when the rf signal passes through the through slot 122b, the rf signal continuously attenuates as it continuously goes deeper into the through slot 122b, and finally attenuates to a weaker signal that is not an obstacle to the use of the magnetic resonance apparatus, thereby realizing rf shielding.
The expansion door member 124 includes a supporting frame 1241 and an expansion member 1243, one end of the expansion member 1243 is fixedly connected to the first step 1221, the other end is fixedly connected to the first mounting belt 1122 of the first base 112, and the supporting frame 1241 is rotatably connected to the base plate 122 and is fixedly connected to the expansion member 1243, so that when the base plate 122 rotates relative to the shielding support 110, the expansion member 1243 is driven to move, thereby compressing the expansion member 1243.
In some embodiments, a rotation axis table 1225 is disposed on the substrate 122, a rotation hole is disposed on the rotation axis table 1225, and a rotation axis passes through the rotation axis hole to fix the support frame 1241 and the rotation axis table 1225, so that the support frame 1241 is rotatably connected to the rotation axis table 1225. In particular embodiments, the shaft may be part of a support backbone 1241. Of course, it may be a separate component. In other embodiments, a rotation shaft may be provided on the rotation shaft stand 1225, and a rotation hole may be provided on the support frame 1241, so as to implement the rotation connection between the support frame 1241 and the rotation shaft stand 1225.
In a specific embodiment, the support frame 1241 includes a first support frame 12411 and a second support frame 12413, the first support frame 12411 being rotatably connected to the rotation shaft stage 1225, the second support frame 12413 being rotatably connected to the first support frame 12411. Specifically, the first support frame 12411 and the second support frame 12413 may be provided with rotation holes, and the rotation shaft passes through the rotation holes of the first support frame 12411 and the second support frame 12413, so as to realize rotation connection of the first support frame 12411 and the second support frame 12413. It will be appreciated by those skilled in the art that the rotational connection of the first support frame 12411 to the second support frame 12413 is similar to the rotational connection of the first support frame 12411 to the spindle head 1225, and thus the particular spindle and spindle hole arrangement may be similar to the spindle and spindle hole arrangement described above for the first support frame 12411 to the spindle head 1225.
The telescopic member 1243 is made of a flexible and transparent material, so that the telescopic member 1243 can be compressed along with the rotation of the base plate 122. The telescopic member 1243 is transparent, so that when the flexible radio frequency shielding door 10 is closed, a specific condition in the scanning channel can be observed through the telescopic member 1243, which is beneficial to monitoring the scanning channel. In a specific embodiment, the flexible member 1243 may be a flexible transparent conductive cloth or a flexible transparent conductive film.
When the flexible rf shielding door 10 is assembled to the magnetic resonance apparatus, if the door frame assembly 120 is in the closed state, the first base 112 and the magnetic resonance apparatus are tightly shielded by the first shielding member; the door frame assembly 120 and the second base 114 are tightly shielded by the third shield 1144, and the locking portion is tightly shielded by the second shield 1143.
The flexible rf shielding door 10 is fixedly connected to the first base 112 through the first side 120a of the door frame assembly 120, the second side 120b is abutted to the second base 114, and the second side 120b can rotate relative to the first side 120a, so that the door frame assembly 120 can be opened, and when the door frame assembly is closed, a shielding piece is disposed on the shielding support 110 at a connection position corresponding to the shielding support 110 and the first side 120a and/or the second side 120b, so that rf shielding is realized at a connection position of the shielding support 110 and the door frame assembly 120, and a wider viewing field is provided. In addition, the flexible radio frequency shielding door 10 is simple, has fewer parts, light weight and low cost, and can simply realize a better radio frequency shielding effect.
Referring to fig. 8, an embodiment of the present application further provides a magnetic resonance apparatus 20, where the magnetic resonance apparatus 20 includes a magnet 210 and a flexible rf shielding door, a scanning channel is disposed in the magnet 210, the flexible rf shielding door is disposed corresponding to the scanning channel and is fixed on the magnet 210, and the flexible rf shielding door is the flexible rf shielding door 10 according to any one of the embodiments.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A flexible radio frequency shield door comprising:
the shielding support comprises a first base and a second base, the first base is fixed on the magnetic resonance equipment, and the second base is fixedly connected with the first base; a kind of electronic device with high-pressure air-conditioning system
The door frame subassembly, including first side and second side, first side fixed connection in first base, the second side butt in the second base, the second side can rotate relative first side, thereby makes the door frame subassembly has folding state and expansion state:
when the door frame assembly is in a folded state, the second side is close to the first side, and the door frame assembly is opened so that the flexible radio frequency shielding door is opened;
when the door frame assembly is in an unfolding state, the second side is abutted against the shielding support to realize tight continuous electrical connection with the shielding support, the door frame assembly is closed to enable the flexible radio frequency shielding door to be closed, and a shielding piece is arranged on the shielding support corresponding to the connection part of the shielding support and the first side and/or the second side, so that radio frequency shielding is realized at the connection part of the shielding support and the door frame assembly;
the first boss is provided with a first groove, the first groove is covered by a locking plate, a locking hole is formed in the locking plate, the first groove is communicated with the outside through the locking hole, a second shielding piece is arranged in the first groove, and the second shielding piece is annular and is fixed on the side wall of the first groove;
the door frame assembly comprises a base plate, the base plate is rotationally connected to the shielding support, when the base plate is abutted to the second base, the locking piece penetrates through the lock hole and is locked with the locking plate, the annular protruding edge is contained in the first groove, and the second shielding piece is extruded in the circumferential direction.
2. A flexible radio frequency shield door according to claim 1, wherein the door frame assembly further comprises a telescoping door member having one end fixedly attached to the base plate and the other end fixedly attached to the first base, the telescoping door member being compressed or stretched during rotation of the base plate to thereby provide the door frame assembly with a collapsed state and an expanded state.
3. The flexible radio frequency shield door of claim 2, wherein the telescoping door member comprises a telescoping member having one end fixedly connected to the base plate and the other end fixedly connected to the first base, the telescoping member being made of a flexible shielding material.
4. A flexible radio frequency shield door according to claim 3, wherein the telescoping member is made of a transparent material.
5. The flexible radio frequency shield door of claim 2, wherein the first base is provided with a first through hole, the first through hole is communicated with a scanning channel in the magnetic resonance device, the first base is provided with a first shield, and the first shield is arranged around the first through hole.
6. The flexible radio frequency shield door of claim 5, wherein a second groove is provided in the first groove, and the second groove has a depth greater than the first groove, the first groove is provided with the locking plate therein, the locking plate covers the second groove, and the locking member is inserted into the second groove through the locking hole, thereby locking the door frame assembly to the shield support.
7. The flexible radio frequency shield door of claim 6, wherein the second base is further provided with a chute, the chute is in communication with a scan channel of the magnetic resonance device, a third shield is provided on the second base, and the third shield is disposed around the first boss and the chute.
8. The flexible radio frequency shield door of claim 6, wherein a second boss is provided on a surface of the base plate proximate to the second base, the second boss being in abutment with the second base when the base plate is in abutment with the second base, the annular ledge being provided on a surface of the second boss proximate to the second base.
9. The flexible radio frequency shielding door according to claim 8, wherein the substrate is provided with a second through hole, the second boss is provided with a plurality of through grooves, the second through hole is communicated with the outside through the through grooves, when the flexible radio frequency shielding door is in a closed state, the second boss and the second base are in tight electrical connection, a scanning channel of the magnetic resonance device is communicated with the outside through the through grooves, the inner diameter of the through grooves is such that when the radio frequency signal passes through the through grooves, the radio frequency signal is continuously attenuated as the radio frequency signal continuously goes deep into the through grooves, and finally attenuated into a weak signal which does not interfere with the use of the magnetic resonance device.
10. A magnetic resonance apparatus comprising a magnet and a flexible radio frequency shield door, wherein a scanning channel is provided in the magnet, the flexible radio frequency shield door is arranged corresponding to the scanning channel and is fixed on the magnet, and the flexible radio frequency shield door is the flexible radio frequency shield door according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641016.9A CN108547557B (en) | 2018-06-21 | 2018-06-21 | Flexible radio frequency shielding door and magnetic resonance equipment |
| PCT/CN2019/089051 WO2019242475A1 (en) | 2018-06-21 | 2019-05-29 | Flexible radio frequency shielding door and magnetic resonance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641016.9A CN108547557B (en) | 2018-06-21 | 2018-06-21 | Flexible radio frequency shielding door and magnetic resonance equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108547557A CN108547557A (en) | 2018-09-18 |
| CN108547557B true CN108547557B (en) | 2023-11-10 |
Family
ID=63492947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810641016.9A Active CN108547557B (en) | 2018-06-21 | 2018-06-21 | Flexible radio frequency shielding door and magnetic resonance equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108547557B (en) |
| WO (1) | WO2019242475A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547557B (en) * | 2018-06-21 | 2023-11-10 | 深圳市金石医疗科技有限公司 | Flexible radio frequency shielding door and magnetic resonance equipment |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794595A1 (en) * | 1996-03-07 | 1997-09-10 | Quante Ag | Shielded connection box |
| WO2004020773A2 (en) * | 2002-08-22 | 2004-03-11 | Dieter Knauer | Closing device for windows, doors or such openings |
| CN1878458A (en) * | 2005-06-10 | 2006-12-13 | 株式会社日立高新技术 | Magnetic shielding apparatus and magnetic field measuring apparatus using same |
| CN1970977A (en) * | 2006-10-30 | 2007-05-30 | 中国人民解放军总后勤部建筑工程研究所 | Flexible curled-edge wave-inhibiting shield door |
| CN101361656A (en) * | 2007-08-07 | 2009-02-11 | 西门子公司 | Mobile combined mri/pet apparatus |
| JP2013000420A (en) * | 2011-06-17 | 2013-01-07 | Yoshida Dental Mfg Co Ltd | Electromagnetic shield mechanism for magnetic resonance imaging apparatus |
| CN102958432A (en) * | 2010-08-17 | 2013-03-06 | 株式会社日立医疗器械 | High-frequency coil and magnetic resonance imaging device employing same |
| DE102012203450A1 (en) * | 2012-03-05 | 2013-09-05 | Siemens Aktiengesellschaft | Magnetic resonance device with a cylindrical patient receptacle and patient capsule |
| CN203279457U (en) * | 2013-05-21 | 2013-11-06 | 深圳市飞荣达科技股份有限公司 | Shielding reed |
| CN204244642U (en) * | 2014-10-30 | 2015-04-01 | 深圳市佳晨科技有限公司 | A kind of angle folding shielded box |
| KR20150049316A (en) * | 2013-10-30 | 2015-05-08 | 한국전기연구원 | Therapy system using magnetic resonance imaging guided linear accelerator and method for controlling the same |
| CN104936425A (en) * | 2014-03-17 | 2015-09-23 | 三星电子株式会社 | Shield can, electronic device, and manufacturing method thereof |
| CN106812455A (en) * | 2015-12-02 | 2017-06-09 | 湖北华舟重工应急装备股份有限公司 | A kind of reassembling type unmanned plane hangar freshwater mussel shape hangar door |
| CN106856654A (en) * | 2017-03-13 | 2017-06-16 | 深圳市金石医疗科技有限公司 | Self-shielding type magnetic resonance device |
| CN208486794U (en) * | 2018-06-21 | 2019-02-12 | 深圳市金石医疗科技有限公司 | Flexible radio frequency shield door and magnetic resonance equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW415232U (en) * | 1999-10-26 | 2000-12-11 | Taipei Veterans General Hospit | Electric physiology Faraday box |
| CN201433679Y (en) * | 2009-06-17 | 2010-03-31 | 陈小明 | Folding shower room door |
| CN205591775U (en) * | 2016-05-12 | 2016-09-21 | 江苏食品药品职业技术学院 | Folding burglary -resisting door of response theftproof |
| CN108547557B (en) * | 2018-06-21 | 2023-11-10 | 深圳市金石医疗科技有限公司 | Flexible radio frequency shielding door and magnetic resonance equipment |
-
2018
- 2018-06-21 CN CN201810641016.9A patent/CN108547557B/en active Active
-
2019
- 2019-05-29 WO PCT/CN2019/089051 patent/WO2019242475A1/en active Application Filing
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794595A1 (en) * | 1996-03-07 | 1997-09-10 | Quante Ag | Shielded connection box |
| WO2004020773A2 (en) * | 2002-08-22 | 2004-03-11 | Dieter Knauer | Closing device for windows, doors or such openings |
| CN1878458A (en) * | 2005-06-10 | 2006-12-13 | 株式会社日立高新技术 | Magnetic shielding apparatus and magnetic field measuring apparatus using same |
| CN1970977A (en) * | 2006-10-30 | 2007-05-30 | 中国人民解放军总后勤部建筑工程研究所 | Flexible curled-edge wave-inhibiting shield door |
| CN101361656A (en) * | 2007-08-07 | 2009-02-11 | 西门子公司 | Mobile combined mri/pet apparatus |
| CN102958432A (en) * | 2010-08-17 | 2013-03-06 | 株式会社日立医疗器械 | High-frequency coil and magnetic resonance imaging device employing same |
| JP2013000420A (en) * | 2011-06-17 | 2013-01-07 | Yoshida Dental Mfg Co Ltd | Electromagnetic shield mechanism for magnetic resonance imaging apparatus |
| DE102012203450A1 (en) * | 2012-03-05 | 2013-09-05 | Siemens Aktiengesellschaft | Magnetic resonance device with a cylindrical patient receptacle and patient capsule |
| CN203279457U (en) * | 2013-05-21 | 2013-11-06 | 深圳市飞荣达科技股份有限公司 | Shielding reed |
| KR20150049316A (en) * | 2013-10-30 | 2015-05-08 | 한국전기연구원 | Therapy system using magnetic resonance imaging guided linear accelerator and method for controlling the same |
| CN104936425A (en) * | 2014-03-17 | 2015-09-23 | 三星电子株式会社 | Shield can, electronic device, and manufacturing method thereof |
| CN204244642U (en) * | 2014-10-30 | 2015-04-01 | 深圳市佳晨科技有限公司 | A kind of angle folding shielded box |
| CN106812455A (en) * | 2015-12-02 | 2017-06-09 | 湖北华舟重工应急装备股份有限公司 | A kind of reassembling type unmanned plane hangar freshwater mussel shape hangar door |
| CN106856654A (en) * | 2017-03-13 | 2017-06-16 | 深圳市金石医疗科技有限公司 | Self-shielding type magnetic resonance device |
| CN208486794U (en) * | 2018-06-21 | 2019-02-12 | 深圳市金石医疗科技有限公司 | Flexible radio frequency shield door and magnetic resonance equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019242475A1 (en) | 2019-12-26 |
| CN108547557A (en) | 2018-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fütterer et al. | Initial experience of 3 tesla endorectal coil magnetic resonance imaging and 1H-spectroscopic imaging of the prostate | |
| US8013607B2 (en) | Magnetic shielding for a PET detector system | |
| US8525116B2 (en) | MR/PET imaging systems | |
| CN105637381B (en) | Coil block for magnetic resonance imaging | |
| CN108547557B (en) | Flexible radio frequency shielding door and magnetic resonance equipment | |
| US8049501B2 (en) | Multi-frequency RF coil | |
| US6211677B1 (en) | Lung coil for imaging hyper-polarized gas in an MRI scanner | |
| KR100484582B1 (en) | Magnetic resonance equipment with movable gradient coil unit | |
| RU190567U1 (en) | COIL FOR MAGNETIC-RESONANT TOMOGRAPHY OF THE MAMMAL GLANDS | |
| ITRM960591A1 (en) | ELECTROMAGNETIC SCREENING ARRANGEMENT FOR NUCLEAR MAGNETIC RESONANCE EQUIPMENT | |
| US11567152B2 (en) | Orthogonal element decoupling for moveable coil arrays in MRI | |
| GB2408341A (en) | Minimising radio frequency interference from electronic systems in an MRI room | |
| KR20220060491A (en) | Mri systems and receive coil arrangements | |
| Poirier‐Quinot et al. | Performance of a miniature high‐temperature superconducting (HTS) surface coil for in vivo microimaging of the mouse in a standard 1.5 T clinical whole‐body scanner | |
| CN208486794U (en) | Flexible radio frequency shield door and magnetic resonance equipment | |
| Choi et al. | A novel J-shape antenna array for simultaneous MR-PET or MR-SPECT imaging | |
| CN112924912A (en) | Magnetic resonance apparatus | |
| US20040106865A1 (en) | Magnetic resonance apparatus with a movable gradient coil unit | |
| CN215641773U (en) | Magnetic resonance apparatus | |
| CN215297643U (en) | Radio frequency coil assembly and magnetic resonance apparatus | |
| Celik et al. | Design and construction of a PET-compatible double-tuned 1 H/31 P MR head coil | |
| CN209332056U (en) | Mammary gland magnetic resonance imaging and intervention integrated apparatus and its box body | |
| Matsumoto et al. | A composite resonator assembly suitable for EPR/NMR coregistration imaging | |
| Tropp et al. | A dual‐tuned probe and multiband receiver front end for X‐nucleus spectroscopy with proton scout imaging in vivo | |
| US10677862B2 (en) | Signal receiver for a magnetic resonance apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |