WO2024007229A1 - 滑环组件及具有该滑环组件的医疗设备 - Google Patents

滑环组件及具有该滑环组件的医疗设备 Download PDF

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Publication number
WO2024007229A1
WO2024007229A1 PCT/CN2022/104244 CN2022104244W WO2024007229A1 WO 2024007229 A1 WO2024007229 A1 WO 2024007229A1 CN 2022104244 W CN2022104244 W CN 2022104244W WO 2024007229 A1 WO2024007229 A1 WO 2024007229A1
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WO
WIPO (PCT)
Prior art keywords
conductor
ring assembly
slip ring
radial size
axial direction
Prior art date
Application number
PCT/CN2022/104244
Other languages
English (en)
French (fr)
Inventor
汪鹏
邹剑雄
傅费超
倪成
Original Assignee
上海联影医疗科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海联影医疗科技股份有限公司 filed Critical 上海联影医疗科技股份有限公司
Priority to PCT/CN2022/104244 priority Critical patent/WO2024007229A1/zh
Priority to EP22946046.4A priority patent/EP4342383A1/en
Publication of WO2024007229A1 publication Critical patent/WO2024007229A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/08—Slip-rings
    • H01R39/10—Slip-rings other than with external cylindrical contact surface, e.g. flat slip-rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/08—Slip-rings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present application relates to the field of magnetic resonance medical technology, and in particular to a slip ring assembly and medical equipment having the slip ring assembly.
  • a magnetic resonance imaging device is used to obtain magnetic resonance images of the tissue of a patient (such as a tumor patient) to clearly display the condition of the diseased site and surrounding tissue, so that the diseased tissue can be accurately located; further, using treatment equipment (such as electronic Linear accelerator) performs precise radiation therapy based on magnetic resonance images.
  • the magnetic resonance imaging device and the treatment device can be used in combination, and the slip ring assembly can be used as a power supply medium and a communication medium for the treatment device. When the slip ring assembly is energized, the magnetic field generated by the current flowing through the slip ring assembly interferes with the central magnetic field of the magnetic resonance imaging device, thereby causing the magnetic resonance imaging to be less accurate.
  • a slip ring assembly including: at least one set of first conductor sets, each set of first conductor sets includes a first conductor and a second conductor, and the first conductor and the second conductor are configured in a ring shape.
  • each second conductor group includes a third conductor and a fourth conductor, the third conductor and the fourth conductor are configured in a ring shape, wherein the first conductor, the second conductor, the third conductor and The fourth conductors are spaced apart from each other, the first conductor is configured to pass a first current, the first current has a first phase and a first amplitude, and the second conductor is configured to pass a second current, the second current has a second phase.
  • the third conductor is configured to pass a third current, the third current has a third phase and a third amplitude, the fourth conductor is configured to pass a fourth current, the fourth current has a fourth phase and a third amplitude.
  • the difference between the first phase and the third phase is less than or equal to the first threshold, and/or the difference between the first amplitude and the third amplitude is less than or equal to the second threshold, the second phase and the fourth phase
  • the difference is less than or equal to the third threshold, and/or the difference between the second amplitude and the fourth amplitude is less than or equal to the fourth threshold, the first magnetic field generated by the first conductor group and the second magnetic field generated by the second conductor group
  • the magnetic fields at least partially cancel each other.
  • the first magnetic field generated by the first conductor and the second magnetic field generated by the second conductor group at least partially cancel each other after being spatially superimposed, so the generation of the slip ring assembly is reduced.
  • the overall strength of the magnetic field reduces the interference to the central magnetic field of the magnetic resonance imaging device, thus ensuring the imaging accuracy of magnetic resonance.
  • the first threshold and/or the third threshold is 60°.
  • the second threshold is 2 times the smaller of the first amplitude and the third amplitude
  • the fourth threshold is 2 times the smaller of the second amplitude and the fourth amplitude.
  • the first conductor set and the second conductor set are coaxially arranged.
  • the first conductor and the second conductor are coaxially disposed.
  • the third conductor and the fourth conductor are coaxially disposed.
  • the first conductor set and the second conductor set are arranged at different positions in the axial direction (X).
  • first conductor and the second conductor are disposed at the same position in the axial direction (X), and the third conductor and the fourth conductor are disposed at the same position in the axial direction (X).
  • the radial dimension of the first conductor is greater than the radial dimension of the second conductor, and the radial dimension of the fourth conductor is greater than the radial dimension of the third conductor.
  • the radial dimension of the first conductor is equal to the radial dimension of the fourth conductor and the radial dimension of the second conductor is equal to the radial dimension of the third conductor.
  • first conductor and the second conductor are arranged at different positions in the axial direction (X), and the third conductor and the fourth conductor are arranged at different positions in the axial direction (X),
  • the first conductor, the second conductor, the fourth conductor and the third conductor are sequentially arranged along the axial direction (X).
  • the radial dimensions of the first conductor, the second conductor, the fourth conductor and the third conductor are the same.
  • first conductor group and the second conductor group are disposed at the same position in the axial direction (X).
  • first conductor and the second conductor are disposed at the same position in the axial direction (X), and the third conductor and the fourth conductor are disposed at the same position in the axial direction (X).
  • the radial size of the first conductor, the radial size of the second conductor, the radial size of the fourth conductor, and the radial size of the third conductor increase in sequence.
  • the first conductor and the second conductor are arranged at different positions in the first direction of the axis (X), and the fourth conductor and the third conductor are arranged at different positions in the first direction of the axis (X). Location.
  • the radial dimension of the smaller radial dimension of the first conductor and the second conductor is greater than the radial dimension of the larger radial dimension of the third conductor and the fourth conductor.
  • the radial dimension of the first conductor is equal to the radial dimension of the second conductor and the radial dimension of the third conductor is equal to the radial dimension of the fourth conductor.
  • the first conductor group further includes a fifth conductor configured in a ring shape
  • the second conductor group further includes a sixth conductor configured in a ring shape, wherein the first conductor, the second conductor, The third conductor, the fourth conductor, the fifth conductor and the sixth conductor are arranged spaced apart from each other, the fifth conductor is configured to pass a fifth current, the fifth current has a fifth phase and a fifth amplitude, and the sixth conductor is configured to pass Enter a sixth current, the sixth current has a sixth phase and a sixth amplitude, the difference between the fifth phase and the sixth phase is less than or equal to the fifth threshold, or the difference between the fifth amplitude and the sixth amplitude is less than or equal to the sixth threshold.
  • the fifth threshold is 60°.
  • the sixth threshold is 2 times the smaller of the fifth amplitude and the sixth amplitude.
  • the first conductor, the second conductor and the fifth conductor are coaxially disposed.
  • the third conductor, the fourth conductor and the sixth conductor are coaxially disposed.
  • At least two of the first conductor, the second conductor and the fifth conductor are disposed at the same position in the axial direction (X), and at least two of the third conductor, the fourth conductor and the sixth conductor are Set at the same position in the axial direction (X).
  • the first conductor, the second conductor and the fifth conductor are disposed at the same position in the axial direction (X), and the third conductor, the fourth conductor and the sixth conductor are disposed at the same position in the axial direction (X). Location.
  • the radial size of the first conductor, the radial size of the second conductor, and the radial size of the fifth conductor decrease in sequence
  • the radial sizes of the sixth conductor, the fourth conductor, and the radial size of the third conductor decrease in sequence. The sizes decrease in sequence.
  • the radial dimension of the first conductor is equal to the radial dimension of the sixth conductor
  • the radial dimension of the second conductor is equal to the radial dimension of the fourth conductor
  • the radial dimension of the fifth conductor is equal to the radial dimension of the third conductor. Radial dimensions.
  • At least two of the first conductor, the second conductor and the fifth conductor are disposed at different positions in the axial direction (X), and at least two of the third conductor, the fourth conductor and the sixth conductor Set at different positions in the axial direction (X).
  • the first conductor, the second conductor and the fifth conductor are arranged at different positions in the axial direction (X), and the third conductor, the fourth conductor and the sixth conductor are arranged at different positions in the axial direction (X). Location.
  • the fifth conductor, the second conductor, the first conductor, the third conductor, the fourth conductor and the sixth conductor are sequentially arranged along the axial direction (X).
  • At least two of the first conductor, the second conductor and the fifth conductor are disposed at the same position in the axial direction (X), and at least two of the third conductor, the fourth conductor and the sixth conductor are Set at the same position in the axial direction (X).
  • the first conductor, the second conductor and the fifth conductor are arranged at the same position in the axial direction (X), and the third conductor, the fourth conductor and the sixth conductor are arranged at the same position in the axial direction (X). Location.
  • the radial dimension of the fifth conductor, the radial dimension of the second conductor, the radial dimension of the first conductor, the radial dimension of the third conductor, the radial dimension of the fourth conductor and the radial dimension of the sixth conductor are The radial dimensions increase in sequence.
  • At least two of the first conductor, the second conductor and the fifth conductor are disposed at different positions in the axial direction (X), and at least two of the third conductor, the fourth conductor and the sixth conductor Set at different positions in the axial direction (X).
  • the first conductor, the second conductor and the fifth conductor are arranged at different positions in the second direction of the axial direction (X), and the third conductor, the fourth conductor and the sixth conductor are arranged in the axial direction (X ) in the second direction.
  • the radial dimension of the smallest radial dimension of the first, second and fifth conductors is greater than the radial dimension of the largest radial dimension of the third, fourth and sixth conductors.
  • the slip ring assembly further includes a first brush, a second brush, a third brush and a fourth brush, the first brush being adapted to form electrical contact with the first conductor, the second brush being adapted to For forming electrical contact with the second conductor, the third brush is adapted to form electrical contact with the third conductor, and the fourth brush is adapted to form electrical contact with the fourth conductor.
  • the slip ring assembly further includes a fifth brush adapted to form electrical contact with the fifth conductor and a sixth brush adapted to form electrical contact with the sixth conductor.
  • a medical device including a treatment device.
  • the treatment device includes a slip ring assembly according to any of the preceding embodiments, and the slip ring assembly is suitable for use as a power supply medium or a communication medium for the treatment device.
  • a magnetic resonance imaging device is further included.
  • Figure 1 is a perspective schematic diagram of a medical device according to an embodiment of the present application.
  • Figure 2 is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • Figure 3 is a schematic cross-sectional view of the slip ring assembly shown in Figure 2;
  • Figure 4 is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • Figure 5a is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • Figure 5b is a schematic cross-sectional view of the slip ring assembly shown in Figure 5a;
  • Figure 6a is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • Figure 6b is a schematic cross-sectional view of the slip ring assembly shown in Figure 6a
  • Figure 7 is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • Figure 8 is a schematic cross-sectional view of the slip ring assembly shown in Figure 7;
  • Figure 9 is a perspective schematic diagram of a slip ring assembly according to one embodiment of the present application.
  • Figure 10 is a perspective schematic diagram of a slip ring assembly according to one embodiment of the present application.
  • FIG. 11 is a schematic cross-sectional view of the slip ring assembly shown in FIG. 10 .
  • FIG. 1 is a perspective schematic diagram of a medical device 10 according to one embodiment of the present application.
  • the medical device 10 includes: a magnetic resonance imaging device 100; a treatment device 200; and a bed assembly 240.
  • the magnetic resonance imaging apparatus 100 is provided in a cylindrical shape having a hollow portion.
  • the treatment device 200 is, for example, a linear accelerator 200 .
  • the treatment device 200 can also be other suitable treatment devices, which is not limited in this application.
  • the linear accelerator 200 includes: an accelerator stator 210; an accelerator drum 220; and electrical connection terminals 230.
  • the accelerator stator 210 is fixedly arranged, and the accelerator stator 210 is provided with a circular first opening 2101.
  • the accelerator drum 220 is provided with a circular second opening 2201, and the second opening 2201 is coaxially arranged with the first opening 2101.
  • the accelerator drum 220 is configured to be pivotable relative to the accelerator stator 210 around a common axis therebetween.
  • the slip ring assembly 300 is disposed on one side of the accelerator drum 210, and the slip ring assembly 300 is disposed coaxially with the first opening 2101 and the second opening 2201.
  • the axial direction and the radial direction of the slip ring assembly 300 are schematically expressed by the axis X and the axis Y.
  • the electrical connection terminal 230 is provided on the accelerator stator 210 and can be electrically connected to the slip ring assembly 300 .
  • the electrical connection terminal 230 is, for example, a carbon brush 230 .
  • the electrical connection terminal 230 can also be other suitable electrical connection devices, such as metal brushes, etc., as long as it can meet the requirements of electrically connecting the slip ring assembly 300 and the linear accelerator 200, which is not limited in this application.
  • the slip ring assembly 300 is disposed on the accelerator drum 220, and the electrical connection terminal 230 is disposed on the accelerator stator 210. When the linear accelerator 200 operates, the slip ring assembly 300 pivots together with the accelerator drum 210, and the slip ring assembly 300 is electrically connected to the linear accelerator 200 through the carbon brush 230.
  • the slip ring assembly 300 and the electrical connection terminal 230 can also be disposed in other suitable positions, as long as the slip ring assembly 300 and the electrical connection terminal 230 can achieve relative sliding, and the slip ring assembly 300 can pass through the carbon
  • the brush 230 only needs to be electrically connected to the linear accelerator 200.
  • This application does not limit the installation positions of the slip ring assembly 300 and the electrical connection terminal 230.
  • the slip ring assembly 300 can also be provided on the accelerator stator 210, and the electrical connection terminal 230 is provided on the accelerator drum 220.
  • the carbon brush 230 pivots together with the accelerator drum 210, and the slip ring Assembly 300 is in electrical communication with linear accelerator 200 through carbon brush 230.
  • the bed assembly 240 is configured to be at least partially movable into the hollow portion of the magnetic resonance imaging apparatus 100 and includes a bed board adapted to carry a patient 400 to be examined or treated.
  • the medical device 10 When the medical device 10 is operating, the patient 400 is positioned on the bed board of the hospital bed assembly 240, and the magnetic resonance imaging device 100 is adapted to perform magnetic resonance imaging on the region of interest of the patient 400 to obtain a magnetic resonance image.
  • the linear accelerator 200 is suitable for performing radiation therapy on the lesion tissue in the region of interest based on the magnetic resonance image.
  • the magnetic resonance imaging apparatus 100 can perform magnetic resonance imaging on the tissue region of interest at any time, such as before, during, or after radiotherapy.
  • the linear accelerator 200 can perform radiotherapy on the lesion tissue in the area of interest based on the fusion image formed by magnetic resonance imaging and other types of images, so as to further improve the accuracy of radiotherapy.
  • FIG. 2 is a perspective schematic view of the slip ring assembly 300 according to an embodiment of the present application
  • FIG. 3 is a sectional schematic view of the slip ring assembly 300 shown in FIG. 2
  • the slip ring assembly 300 includes: at least one first set of conductors and at least one set of second conductors.
  • Each first conductor group includes a first conductor 310 and a second conductor 320, and the first conductor 310 and the second conductor 320 are configured in a ring structure.
  • each first conductor group may include more than two conductors, such as 3, 4, etc.
  • Each second conductor group includes a third conductor 330 and a fourth conductor 340, and the third conductor 330 and the fourth conductor 340 are configured in a ring structure.
  • each second conductor group may include more than two conductors, such as 3, 4, etc.
  • a group of first conductor groups and a group of second conductor groups are provided.
  • more than one first conductor group may be provided, such as 2 groups, 3 groups, etc., or more than one second conductor group may be provided, such as 2 groups. , 3 groups, etc.
  • the first conductor group and the second conductor group are arranged at different positions in the axial direction (X).
  • the first conductor 310 and the second conductor 320 are disposed at the same position in the axial direction (X), and the third conductor 330 and the fourth conductor 340 are disposed at the same position in the axial direction (X).
  • the radial size of the first conductor 310 is greater than the radial size of the second conductor 320
  • the radial size of the fourth conductor 340 is greater than the radial size of the third conductor 330 .
  • the radial size of the first conductor 310 is smaller than the radial size of the second conductor 320
  • the radial size of the fourth conductor 340 is smaller than the radial size of the third conductor 330 .
  • the radial size of the first conductor 310 is equal to the radial size of the fourth conductor 340
  • the radial size of the second conductor 320 is equal to the radial size of the third conductor 330 . It should be noted that the “radial size” in this article should be understood in a broad sense.
  • the “radial size” may be the outer diameter, the inner diameter, or the arithmetic mean of the outer diameter and the inner diameter of the ring body of the annular structure, etc.
  • the first conductor set and the second conductor set are coaxially arranged.
  • the first conductor 310 and the second conductor 320 are coaxially disposed.
  • the third conductor 330 and the fourth conductor 340 are coaxially disposed.
  • the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 are coaxially arranged.
  • the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 are arranged to have a common axis (X).
  • the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 are arranged spaced apart from each other.
  • the insulator 500 is provided between the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 .
  • the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 can also be spaced apart from each other in other suitable ways, for example, between the first conductor 310 , the second conductor 320 , The third conductor 330 and the fourth conductor 340 form a gap between each other, or the gaps between the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 are filled with electrical isolation material, etc., this application There are no restrictions on this.
  • the projections of the first conductor 310 and the fourth conductor 340 along the axial direction (X) of the slip ring assembly 300 at least partially overlap, and the second conductor 320 and the third conductor 330 overlap along the axial direction (X) of the slip ring assembly 300 .
  • the axial (X) projections of the slip ring assembly 300 at least partially overlap.
  • the projections of the first conductor 310 and the fourth conductor 340 along the axial direction (X) of the slip ring assembly 300 completely overlap, or the projections of the second conductor 320 and the third conductor 330 along the axial direction (X) of the slip ring assembly 300 are completely overlapped.
  • the projections completely overlap.
  • the projections of the first conductor 310 and the fourth conductor 340 along the axial direction (X) of the slip ring assembly 300 completely overlap, and the second conductor 320 and the third conductor 330 overlap along the axial direction (X) of the slip ring assembly 300 The projections completely overlap.
  • a first brush 311 , a second brush 321 , a third brush 331 and a fourth brush 341 are provided.
  • the first brush 311 , the second brush 321 , the third brush 331 and the fourth brush 341 are adapted to form electrical contact with the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 respectively.
  • the first brush 311 , the second brush 321 , the third brush 331 and the fourth brush 341 are adapted to make electrical contact with the electrical connection terminal 230 so that the slip ring assembly 300 is in electrical communication with the treatment device 200 .
  • the first brush 311 , the second brush 321 , the third brush 331 and the fourth brush 341 may be carbon brushes, metal brushes, or other structures suitable for forming electrical contacts. This application describes No restrictions.
  • FIG. 4 is a perspective schematic diagram of a slip ring assembly according to an embodiment of the present application.
  • the embodiment shown in Figure 4 is generally similar to the embodiment shown in Figures 2 and 3, with the difference being the conductor set and the arrangement of the individual conductors.
  • the first conductor 310 and the second conductor 320 are disposed at different positions in the axial direction (X)
  • the third conductor 330 and the fourth conductor 340 are disposed at different positions in the axial direction (X). different positions.
  • the first conductor 310, the second conductor 320, the fourth conductor 340 and the third conductor 330 are sequentially arranged along the axial direction (X).
  • the radial size of the first conductor 310 and the radial size of the second conductor 320 are the same.
  • the radial size of the fourth conductor 340 and the radial size of the third conductor 330 are the same.
  • the first conductor 310, the second conductor 320, the fourth conductor 340 and the third conductor 330 have the same radial size.
  • projections of at least two of the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 along the axial direction (X) at least partially overlap.
  • the projections of at least two of the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 along the axial direction (X) completely overlap. More preferably, the projections of the first conductor 310, the second conductor 320, the third conductor 330 and the fourth conductor 340 along the axial direction (X) completely overlap.
  • Figure 5a is a schematic perspective view of a slip ring assembly according to an embodiment of the present application
  • Figure 5b is a schematic cross-sectional view of the slip ring assembly shown in Figure 5a.
  • the embodiment shown in Figures 5a and 5b is generally similar to the embodiment shown in Figures 2 and 3, with the difference being the conductor sets and the arrangement of the individual conductors.
  • the first conductor group and the second conductor group are disposed at the same position in the axial direction (X), wherein the first conductor 310 and the second conductor 320 are disposed in the axial direction (X).
  • the third conductor 330 and the fourth conductor 340 are disposed at the same position in the axial direction (X).
  • the radial size of the first conductor 310, the radial size of the second conductor 320, the radial size of the fourth conductor 340, and the radial size of the third conductor 330 increase in sequence.
  • the radial size of the first conductor 310, the radial size of the second conductor 320, the radial size of the fourth conductor 340, and the radial size of the third conductor 330 decrease in sequence.
  • projections of at least two of the first conductor 310, the second conductor 320, the fourth conductor 340, and the third conductor 330 along the radial direction (Y) at least partially overlap.
  • the projections of at least two of the first conductor 310, the second conductor 320, the fourth conductor 340, and the third conductor 330 in the radial direction (Y) completely overlap.
  • the projections of the first conductor 310, the second conductor 320, the fourth conductor 340, and the third conductor 330 in the radial direction (Y) completely overlap.
  • Figure 6a is a schematic perspective view of a slip ring assembly according to an embodiment of the present application
  • Figure 6b is a schematic cross-sectional view of the slip ring assembly shown in Figure 6a.
  • the embodiment shown in Figures 6a and 6b is generally similar to the embodiment shown in Figures 2 and 3, with the difference being the conductor sets and the arrangement of the individual conductors.
  • the first conductor 310 and the second conductor 320 are disposed at different positions in the first direction of the axis (X), and the fourth conductor 340 and the third conductor (330) are disposed Different positions in the first direction of the axis (X).
  • the first direction in this article refers to any direction along the axis (X).
  • the radial size of the smaller one of the first conductor 310 and the second conductor 320 is larger than the larger radial size of the third conductor 330 and the fourth conductor 340 .
  • the radial size of the first conductor 310 is equal to the radial size of the second conductor 320
  • the radial size of the third conductor 330 is equal to the radial size of the fourth conductor 340 .
  • the projections of the first conductor 310 and the second conductor 320 in the axial direction (X) at least partially overlap, and the projections of the fourth conductor 340 and the third conductor 330 in the axial direction (X) at least partially overlap.
  • the projections of the first conductor 310 and the second conductor 320 along the axial direction (X) completely overlap, and the projections of the fourth conductor 340 and the third conductor 330 along the axial direction (X) completely overlap.
  • a first current flows through the first conductor 310, and the first current has a third A phase and a first amplitude, a second current flowing through the second conductor 320, the second current having a second phase and a second amplitude, a third current flowing through the third conductor 330, the third current having a Three phases and a third amplitude, a fourth current is passed through the fourth conductor 340, and the fourth current has a fourth phase and a fourth amplitude.
  • the difference between the first phase and the third phase is less than or equal to the first threshold, or the difference between the first amplitude and the third amplitude is less than or equal to the second threshold, and the difference between the second phase and the fourth phase is less than or Equal to the third threshold, or the difference between the second amplitude and the fourth amplitude is less than or equal to the fourth threshold, so that the first magnetic field generated by the first conductor group and the second magnetic field generated by the second conductor group are spatially can at least partially cancel each other out after superposition.
  • the first threshold and/or the third threshold may be 20°, 40°, 59°, 60°, 61° or other suitable values.
  • the first threshold and/or the third threshold are 60°.
  • the second threshold is 2 times the smaller of the first amplitude and the third amplitude
  • the fourth threshold is 2 times the smaller of the second amplitude and the fourth amplitude.
  • FIG. 7 is a schematic perspective view of a slip ring assembly according to an embodiment of the present application
  • FIG. 8 is a schematic cross-sectional view of the slip ring assembly shown in FIG. 7
  • the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 of the embodiment shown in FIGS. 7 and 8 are similar to the embodiment shown in FIGS. 2 and 3 .
  • each first conductor group further includes a fifth conductor 350 configured in a ring shape; each second conductor group further includes a sixth conductor 360 .
  • the 360 is configured as a ring.
  • the first conductor group and the second conductor group are arranged at different positions in the axial direction (X).
  • at least two of the first conductor 310 , the second conductor 320 and the fifth conductor 350 are disposed at the same position in the axial direction (X)
  • the third conductor 330 , the fourth conductor 340 and the sixth conductor 360 are At least two of them are arranged at the same position in the axial direction (X).
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 are disposed at the same position in the axial direction (X)
  • the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are disposed in the axial direction (X).
  • the radial dimensions of the first conductor 310 , the second conductor 320 and the fifth conductor 350 decrease in sequence, and the radial dimensions of the sixth conductor 360 , the fourth conductor 340 and the third conductor 330 Decreasing in size.
  • the radial size of the first conductor 310 is equal to the radial size of the sixth conductor 360
  • the radial size of the second conductor 320 is equal to the radial size of the fourth conductor 340
  • the radial size of the fifth conductor (350) is equal to Radial dimensions of the third conductor (330).
  • the first conductor set and the second conductor set are coaxially arranged.
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 are coaxially disposed.
  • the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are coaxially disposed.
  • the first conductor 310, the second conductor 320, the third conductor 330, the fourth conductor 340, the fifth conductor 350 and the sixth conductor 360 are coaxially arranged.
  • the first conductor 310 , the second conductor 320 , the third conductor 330 and the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 are arranged to have a common axis. (X).
  • the first conductor 310 , the second conductor 320 , the third conductor 330 , the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 are arranged spaced apart from each other.
  • the insulating member 500 is provided between the first conductor 310 , the second conductor 320 , the third conductor 330 , the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 .
  • the first conductor 310 , the second conductor 320 , the third conductor 330 , the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 can also be arranged spaced apart from each other through other suitable methods, for example A gap is formed between the first conductor 310 , the second conductor 320 , the third conductor 330 , the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 , or between the first conductor 310 , the second conductor 320 and the third conductor 360 .
  • the gaps between the conductor 330, the fourth conductor 340, the fifth conductor 350 and the sixth conductor 360 are filled with electrical isolation materials, etc. This application does not limit this.
  • the projections of the first conductor 310 and the sixth conductor 360 along the axial direction (X) of the slip ring assembly 300 at least partially overlap, and the second conductor 320 and the fourth conductor 340 overlap along the slip ring assembly 300 .
  • the projections in the axial direction (X) of the ring assembly 300 at least partially overlap, and the projections of the fifth conductor 350 and the third conductor 330 in the axial direction (X) of the slip ring assembly 300 at least partially overlap.
  • the projections of the first conductor 310 and the sixth conductor 360 along the axial direction (X) of the slip ring assembly 300 completely overlap, or the projections of the second conductor 320 and the fourth conductor 340 along the axial direction (X) of the slip ring assembly 300 are completely overlapped.
  • the projections completely overlap, or the projections of the fifth conductor 350 and the third conductor 330 along the axis (X) of the slip ring assembly 300 completely overlap.
  • the projections of the first conductor 310 and the sixth conductor 360 along the axial direction (X) of the slip ring assembly 300 completely overlap, and the second conductor 320 and the fourth conductor 340 overlap along the axial direction (X) of the slip ring assembly 300
  • the projections of the fifth conductor 350 and the third conductor 330 completely overlap along the axial direction (X) of the slip ring assembly 300 .
  • the first brush 311 , the second brush 321 , the third brush 331 and the fourth brush 341 of the embodiment shown in FIGS. 7 and 8 are similar to the embodiment shown in FIGS. 2 and 3 .
  • the embodiment shown in FIGS. 7 and 8 also includes a fifth brush 351 and a sixth brush 361 , which are adapted to form electrical currents with the fifth conductor 350 and the sixth conductor 360 respectively. touch.
  • the fifth brush 351 and the sixth brush 361 are adapted to make electrical contact with the electrical connection terminal 230 so that the slip ring assembly 300 is in electrical communication with the treatment device 200 .
  • the first brush 311, the second brush 321, the third brush 331, the fourth brush 341, the fifth brush 351 and the sixth brush 361 may be carbon brushes, metal brushes, or other brushes.
  • the structure suitable for forming electrical contact is not limited in this application.
  • FIG. 9 is a perspective schematic diagram of a slip ring assembly according to one embodiment of the present application.
  • the embodiment shown in Figure 9 is generally similar to the embodiment shown in Figures 7 and 8, with the difference being the conductor set and the arrangement of the individual conductors.
  • at least two of the first conductor 310 , the second conductor 320 and the fifth conductor 350 are disposed at different positions in the axial direction (X)
  • the third conductor 330 , at least two of the fourth conductor 340 and the sixth conductor 360 are disposed at different positions in the axial direction (X).
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 are arranged at different positions in the axial direction (X), and the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are arranged in the axial direction (X) different locations on.
  • the fifth conductor 350, the second conductor 320, the first conductor 310, the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are sequentially arranged along the axial direction (X).
  • the radial size of the first conductor 310 , the radial size of the second conductor 320 and the radial size of the fifth conductor 350 are the same.
  • the radial dimensions of the sixth conductor 360 , the fourth conductor 340 and the third conductor 330 are the same.
  • the radial size of the first conductor 310, the radial size of the second conductor 320, the radial size of the fifth conductor 350, the radial size of the sixth conductor 360, the fourth conductor 340 and the radial size of the third conductor 330 are The dimensions are the same. More preferably, the projections of the first conductor 310 , the second conductor 320 , the third conductor 330 , the fourth conductor 340 , the fifth conductor 350 and the sixth conductor 360 along the axial direction (X) of the slip ring assembly 300 completely overlap.
  • FIG. 10 is a perspective view of a slip ring assembly according to an embodiment of the present application
  • FIG. 11 is a cross-sectional schematic view of the slip ring assembly shown in FIG. 10
  • the embodiment shown in FIGS. 10 and 11 is generally similar to the embodiment shown in FIGS. 7 and 8 , except for the conductor group and the arrangement of each conductor.
  • the first conductor group and the second conductor group are arranged at the same position in the axial direction (X).
  • At least two of the first conductor 310 , the second conductor 320 and the fifth conductor 350 are disposed at the same position in the axial direction (X), and the third conductor 330 , the fourth conductor 340 and the sixth conductor 360 At least two of them are arranged at the same position in the axial direction (X).
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 are disposed at the same position in the axial direction (X)
  • the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are disposed in the axial direction (X ) at the same location.
  • the radial size of the fifth conductor 350 , the radial size of the second conductor 320 , the radial size of the first conductor 310 , the radial size of the third conductor 330 , the radial size of the fourth conductor 340 and the radial size of the sixth conductor 360 The radial dimensions increase in sequence.
  • the radial size of the fifth conductor 350, the radial size of the second conductor 320, the radial size of the first conductor 310, the radial size of the third conductor 330, the radial size of the fourth conductor 340 and the The radial dimensions of the six conductors 360 decrease in sequence.
  • projections of at least two of the first conductor 310, the second conductor 320, the third conductor 330, the fourth conductor 340, the fifth conductor 350 and the sixth conductor 370 in the radial direction (Y) at least partially overlap.
  • projections of at least two of the first conductor 310, the second conductor 320, the third conductor 330, the fourth conductor 340, the fifth conductor 350 and the sixth conductor 370 in the radial direction (Y) completely overlap.
  • the projections of the first conductor 310, the second conductor 320, the third conductor 330, the fourth conductor 340, the fifth conductor 350 and the sixth conductor 370 in the radial direction (Y) completely overlap.
  • the first conductor group and the second conductor group are arranged at the same position in the axial direction (X).
  • at least two of the first conductor 310 , the second conductor 320 and the fifth conductor 350 are disposed at different positions in the axial direction (X)
  • the third conductor 330 , the fourth conductor 340 and the sixth conductor 360 At least two of them are arranged at different positions in the axial direction (X).
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 are placed at different positions in the second direction of the axis (X)
  • the third conductor 330, the fourth conductor 340 and the sixth conductor 360 are placed in the axial direction (X).
  • the first direction in this article refers to any direction along the axis (X).
  • the smallest radial size of the first conductor 310 , the second conductor 320 and the fifth conductor 350 has a larger radial size than the largest radial size of the third conductor 330 , the fourth conductor 340 and the sixth conductor ( 360 ). or radial size.
  • the first conductor 310, the second conductor 320 and the fifth conductor 350 have the same radial size. More preferably, the projections of the first conductor 310, the second conductor 320 and the fifth conductor 350 in the axial direction (X) completely overlap.
  • the third conductor 330, the fourth conductor 340 and the sixth conductor (360) have the same radial dimensions. More preferably, the projections of the third conductor 330, the fourth conductor 340 and the sixth conductor (360) in the axial direction (X) completely overlap.
  • the first, second, third, and fourth currents, the first, second, third, and fourth phases, the first, second, third, and fourth The amplitude and the first, second, third, and fourth thresholds are substantially the same as the embodiments shown in FIG. 2 and FIG. 3 .
  • a fifth current flows through the fifth conductor 350 , and the fifth current has a fifth phase and a fifth amplitude.
  • 360 passes a sixth current, which has a sixth phase and a sixth amplitude.
  • the difference between the fifth phase and the sixth phase is less than or equal to the fifth threshold, or the difference between the fifth amplitude and the sixth amplitude is less than or equal to the sixth threshold, so that the first magnetic field generated by the first conductor group is different from the first magnetic field generated by the first conductor group.
  • the second magnetic fields generated by the two conductor sets can at least partially cancel each other after being spatially superimposed.
  • the fifth threshold may be 20°, 40°, 59°, 60°, 61° or other suitable values.
  • the fifth threshold is 60°.
  • the sixth threshold is 2 times the smaller of the fifth amplitude and the sixth amplitude.
  • the overall magnetic field (interference magnetic field) generated in the slip ring assembly 300 is reduced. intensity, thereby reducing interference to the central magnetic field of the magnetic resonance imaging device 100 (shown in FIG. 1 ), thereby ensuring the imaging accuracy of magnetic resonance.

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Abstract

一种滑环组件(300)及具有该滑环组件的医疗设备(10)。滑环组件(300)包括：至少一组第一导体组，每组第一导体组包括第一导体(310)和第二导体(320)，第一导体(310)和第二导体(320)配置为环形；和至少一组第二导体组，每组第二导体组包括第三导体(330)和第四导体(340)，第三导体(330)和第四导体(340)配置为环形，其中，第一导体(310)、第二导体(320)、第三导体(330)和第四导体(340)彼此间隔地设置，第一导体(310)配置为通入第一电流，第一电流具有第一相位和第一幅值，第二导体(320)配置为通入第二电流，第二电流具有第二相位和第二幅值，第三导体(330)配置为通入第三电流，第三电流具有第三相位和第三幅值，第四导体(340)配置为通入第四电流，第四电流具有第四相位和第四幅值。

Description

滑环组件及具有该滑环组件的医疗设备 技术领域
本申请涉及磁共振医疗技术领域，特别是涉及一种滑环组件和具有该滑环组件的医疗设备。
背景技术
在现代医学中，通常采用成像设备来获取患者的图像以方便医生诊断或者采用治疗设备对患者进行治疗。例如，使用磁共振成像装置来获取患者(例如肿瘤患者)组织的磁共振影像，以清晰地显示病变部位及周围组织的情况，从而能够准确地定位病变组织；进一步地，使用治疗设备(例如电子直线加速器)基于磁共振影像进行精准的射线治疗。磁共振成像装置与治疗装置可以组合使用，并且滑环组件可以用作为治疗装置的供电介质及通信介质。在滑环组件通电时，流过滑环组件的电流所产生的磁场会对磁共振成像装置的中心磁场产生干扰，由此导致磁共振成像的精确度较低。
发明内容
基于此，有必要针对上述技术问题，提供一种能够有效降低流过滑环组件的电流所产生的磁场对磁共振成像装置的中心磁场的干扰的滑环组件，以及具有该滑环组件的医疗设备。
根据本申请的一个方面，提供了一种滑环组件，包括：至少一组第一导体组，每组第一导体组包括第一导体和第二导体，第一导体和第二导体配置为环 形；和至少一组第二导体组，每组第二导体组包括第三导体和第四导体，第三导体和第四导体配置为环形，其中，第一导体、第二导体、第三导体和第四导体彼此间隔地设置，第一导体配置为通入第一电流，第一电流具有第一相位和第一幅值，第二导体配置为通入第二电流，第二电流具有第二相位和第二幅值，第三导体配置为通入第三电流，第三电流具有第三相位和第三幅值，第四导体配置为通入第四电流，第四电流具有第四相位和第四幅值，第一相位和第三相位的差值小于或等于第一阈值，和/或第一幅值和第三幅值的差值小于或等于第二阈值，第二相位和第四相位的差值小于或等于第三阈值，和/或第二幅值和第四幅值的差值小于或等于第四阈值，第一导体组产生的第一磁场和第二导体组产生的第二磁场彼此之间至少部分地抵消。
在本申请提供的滑环组件中，第一导体所产生的第一磁场与第二导体组所产生的第二磁场在空间上的叠加后至少部分地相互抵消，所以降低了滑环组件中产生的磁场(干扰磁场)的整体强度，进而降低了对磁共振成像装置的中心磁场的干扰，从而保证了磁共振的成像精度。
在一个实施例中，第一阈值和/或第三阈值为60°。
在一个实施例中，第二阈值为第一幅值和第三幅值中较小者的2倍，和/或第四阈值为第二幅值和第四幅值中较小者的2倍。
在一个实施例中，第一导体组和第二导体组同轴地设置。
在一个实施例中，第一导体和第二导体同轴地设置。
在一个实施例中，第三导体和第四导体同轴地设置。
在一个实施例中，第一导体组和第二导体组设置在轴向(X)上的不同位置。
在一个实施例中，第一导体和第二导体设置在轴向(X)上的相同位置，第 三导体和第四导体设置在轴向(X)上的相同位置。
在一个实施例中，第一导体的径向尺寸大于第二导体的径向尺寸，第四导体的径向尺寸大于第三导体的径向尺寸。
在一个实施例中，第一导体的径向尺寸等于第四导体的径向尺寸，第二导体的径向尺寸等于第三导体的径向尺寸。
在一个实施例中，第一导体和第二导体设置在轴向(X)上的不同位置，第三导体和第四导体设置在轴向(X)上的不同位置，
在一个实施例中，第一导体、第二导体、第四导体和第三导体沿轴向(X)依次设置。
在一个实施例中，第一导体的径向尺寸、第二导体的径向尺寸、第四导体的径向尺寸和第三导体的径向尺寸相同。
在一个实施例中，其中，第一导体组和第二导体组设置在轴向(X)上的相同位置。
在一个实施例中，第一导体和第二导体设置在轴向(X)上的相同位置，第三导体和第四导体设置在轴向(X)上的相同位置。
在一个实施例中，第一导体的径向尺寸、第二导体的径向尺寸、第四导体的径向尺寸、第三导体的径向尺寸依次递增。
在一个实施例中，第一导体和第二导体设置在轴向(X)的第一方向上的不同位置，第四导体和第三导体设置在轴向(X)的第一方向上的不同位置。
在一个实施例中，第一导体和第二导体中径向尺寸较小者的径向尺寸大于第三导体和第四导体中径向尺寸较大者的径向尺寸。
在一个实施例中，第一导体的径向尺寸等于第二导体的径向尺寸，第三导 体的径向尺寸等于第四导体的径向尺寸。
在一个实施例中，第一导体组还包括第五导体，第五导体配置为环形，第二导体组还包括第六导体，第六导体配置为环形，其中，第一导体、第二导体、第三导体、第四导体、第五导体和第六导体彼此间隔地设置，第五导体配置为通入第五电流，第五电流具有第五相位和第五幅值，第六导体配置为通入第六电流，第六电流具有第六相位和第六幅值，第五相位和第六相位的差值小于或等于第五阈值，或者第五幅值和第六幅值的差值小于或等于第六阈值。
在一个实施例中，第五阈值为60°。
在一个实施例中，第六阈值为第五幅值和第六幅值中较小者的2倍。
在一个实施例中，第一导体、第二导体和第五导体同轴地设置。
在一个实施例中，第三导体、第四导体和第六导体同轴地设置。
在一个实施例中，第一导体、第二导体和第五导体中的至少两个设置在轴向(X)上的相同位置，第三导体、第四导体和第六导体中的至少两个设置在轴向(X)上的相同位置。
在一个实施例中，第一导体、第二导体和第五导体设置在轴向(X)上的相同位置，第三导体、第四导体和第六导体设置在轴向(X)上的相同位置。
在一个实施例中，第一导体的径向尺寸、第二导体的径向尺寸和第五导体的径向尺寸依次递减，第六导体、第四导体的径向尺寸和第三导体的径向尺寸依次递减。
在一个实施例中，第一导体的径向尺寸等于第六导体的径向尺寸，第二导体的径向尺寸等于第四导体的径向尺寸，第五导体的径向尺寸等于第三导体的径向尺寸。
在一个实施例中，第一导体、第二导体和第五导体中的至少两个设置在轴向(X)上的不同位置，第三导体、第四导体和第六导体中的至少两个设置在轴向(X)上的不同位置。
在一个实施例中，第一导体、第二导体和第五导体设置在轴向(X)上的不同位置，第三导体、第四导体和第六导体设置在轴向(X)上的不同位置。
在一个实施例中，第五导体、第二导体、第一导体、第三导体、第四导体和第六导体沿轴向(X)依次设置。
在一个实施例中，第一导体、第二导体和第五导体中的至少两个设置在轴向(X)上的相同位置，第三导体、第四导体和第六导体中的至少两个设置在轴向(X)上的相同位置。
在一个实施例中，第一导体、第二导体和第五导体置在轴向(X)上的相同位置，第三导体、第四导体和第六导体设置在轴向(X)上的相同位置。
在一个实施例中，第五导体的径向尺寸、第二导体的径向尺寸、第一导体的径向尺寸、第三导体的径向尺寸、第四导体的径向尺寸和第六导体的径向尺寸依次递增。
在一个实施例中，第一导体、第二导体和第五导体中的至少两个设置在轴向(X)上的不同位置，第三导体、第四导体和第六导体中的至少两个设置在轴向(X)上的不同位置。
在一个实施例中，第一导体、第二导体和第五导体置在轴向(X)的第二方向上的不同位置，第三导体、第四导体和第六导体设置在轴向(X)的第二方向上的不同位置。
在一个实施例中，第一导体、第二导体和第五导体中径向尺寸最小者的径 向尺寸大于第三导体、第四导体和第六导体中径向尺寸最大者的径向尺寸。
在一个实施例中，滑环组件还包括第一电刷、第二电刷、第三电刷和第四电刷，第一电刷适于与第一导体形成电接触，第二电刷适于与第二导体形成电接触，第三电刷适于与第三导体形成电接触，第四电刷适于与第四导体形成电接触。
在一个实施例中，滑环组件还包括第五电刷和第六电刷，第五电刷适于与第五导体形成电接触，第六电刷适于与第六导体形成电接触。
根据本发明的另一方面，提供了一种医疗设备，包括治疗装置，治疗装置包括根据前述任一实施例中的滑环组件，滑环组件适于用作为治疗装置的供电介质或通信介质。
在一个实施例中，进一步包括磁共振成像装置。
附图说明
通过附图中所示的本发明的优选实施例的更具体说明，本发明的上述及其它目的、特征和优势将变得更加清晰。在全部附图中相同的附图标记指示相同的部分，且并未刻意按实际尺寸等比例缩放绘制附图，重点在于示出本发明的主旨。
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：
图1为根据本申请的一个实施例的医疗装置的透视示意图；
图2为根据本申请的一个实施例的滑环组件的透视示意图；
图3为图2所示的滑环组件的剖视示意图；
图4为根据本申请的一个实施例的滑环组件的透视示意图；
图5a为根据本申请的一个实施例的滑环组件的透视示意图；
图5b为图5a所示的滑环组件的剖视示意图；
图6a为根据本申请的一个实施例的滑环组件的透视示意图；
图6b为图6a所示的滑环组件的剖视示意图
图7为根据本申请的一个实施例的滑环组件的透视示意图；
图8为图7所示的滑环组件的剖视示意图；
图9为根据本申请的一个实施例的滑环组件的透视示意图；
图10为根据本申请的一个实施例的滑环组件的透视示意图；和
图11为图10所示的滑环组件的剖视示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的首选实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容更加透彻全面。
需要说明的是，当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件并与之结合为一体，或者可能同时存在居中元件。本文所使用的术语“安装”、“一端”、“另一端”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术 语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
参考图1，图1为根据本申请的一个实施例的医疗设备10的透视示意图。在本实施例中，医疗设备10包括：磁共振成像装置100；治疗装置200；和病床组件240。磁共振成像装置100设置为具有中空部分的圆筒状。治疗装置200例如是直线加速器200。可选地，治疗装置200还可以其他合适的治疗装置，本申请对此不做限制。直线加速器200包括：加速器定子210；加速器滚筒220；以及电连接端子230。加速器定子210固定设置，并且加速器定子210设置有圆形的第一开孔2101。加速器滚筒220设置有圆形的第二开孔2201，并且第二开孔2201与第一开孔2101同轴地设置。该加速器滚筒220设置为能够相对于加速器定子210围绕二者共同的轴线枢转。滑环组件300设置在加速器滚筒210的一侧上，并且该滑环组件300与第一开孔2101和第二开孔2201同轴地设置。在图1中，以轴线X和轴线Y示意性地表达滑环组件300的轴向和径向。电连接端子230设置在加速器定子210上，并且能够与滑环组件300电连接。在本实施例中，电连接端子230例如为碳刷230。可选地，电连接端子230还可以是其他合适的电连接装置，例如金属电刷等，只要能够满足使得滑环组件300与直线加速器200电连通的需求即可，本申请对此不做限定。在本实施例中，滑环组件300设置在加速器滚筒220上，电连接端子230设置在加速器定子210上，当直线加速器200工作时，滑环组件300随加速器滚筒210一起枢转，滑 环组件300通过碳刷230与直线加速器200电连通。本领域技术人员可以理解的是，滑环组件300和电连接端子230还可以设置在其他合适的位置，只要滑环组件300和电连接端子230能够实现相对滑动，且滑环组件300能够通过碳刷230与直线加速器200电连通即可，本申请对于滑环组件300和电连接端子230的安装位置不限制。例如，可选地，滑环组件300也可以设置在加速器定子210上，电连接端子230设置在加速器滚筒220上，当直线加速器200工作时，碳刷230随加速器滚筒210一起枢转，滑环组件300通过碳刷230与直线加速器200电连通。病床组件240配置为能够至少部分地移动至磁共振成像装置100的中空部分内，并且病床组件240包括适于承载待检查或待治疗的病人400的床板。当医疗设备10工作时，病人400定位于病床组件240的床板上，磁共振成像装置100适于对病人400的感兴趣区域进行磁共振成像，以获得磁共振图像。直线加速器200适于基于该磁共振图像对感兴趣区域内的病灶组织进行射线治疗。优选地，磁共振成像装置100能够在任意时刻，例如射线治疗之前、射线治疗期间或者射线治疗之后等，对感兴趣组织区域进行磁共振成像。优选地，直线加速器200能够基于由磁共振成像和其他类型的图像形成的融合图像对感兴趣区域内的病灶组织进行射线治疗，以进一步提高射线治疗的准确度。
一并参考图2和图3，图2为根据本申请的一个实施例的滑环组件300的透视示意图；图3为图2所示的滑环组件300的剖视示意图。在图2和图3所示的实施例中，滑环组件300包括：至少一组第一导体组和至少一组第二导体组。每组第一导体组包括第一导体310和第二导体320，第一导体310和第二导体320配置为环形结构。可选地，每组第一导体组包括的导体数量可以多于 两个，例如3个、4个等。每组第二导体组包括第三导体330和第四导体340，第三导体330和第四导体340配置为环形结构。可选的，每组第二导体组包括的导体数量可以多于两个，例如3个、4个等。具体地，在本实施例中，设置有一组第一导体组和一组第二导体组。可选地，在其他实施例中，也可以设置有多于一组的第一导体组，例如2组、3组等，或者也可以设置有多于一组的第二导体组，例如2组、3组等。
在图2和图3所示的实施例中，第一导体组和第二导体组设置在轴向(X)上的不同位置。第一导体310和第二导体320设置在轴向(X)上的相同位置，并且第三导体330和第四导体340设置在轴向(X)上的相同位置。第一导体310的径向尺寸大于第二导体320的径向尺寸，并且第四导体340的径向尺寸大于第三导体330的径向尺寸。可选地，第一导体310的径向尺寸小于第二导体320的径向尺寸，并且第四导体340的径向尺寸小于第三导体330的径向尺寸。优选地，第一导体310的径向尺寸等于第四导体340的径向尺寸，第二导体320的径向尺寸等于第三导体330的径向尺寸。应注意的是，本文中的“径向尺寸”应作广义理解，例如，“径向尺寸”可以是环形结构的环体的外径、内径、或外径和内径的算数平均值等。可选地，第一导体组和第二导体组同轴地设置。可选地，第一导体310和第二导体320同轴地设置。可选地，第三导体330和第四导体340同轴地设置。优选地，第一导体310、第二导体320、第三导体330和第四导体340同轴地设置。例如，在图2和图3所示的实施例中，第一导体310、第二导体320、第三导体330和第四导体340设置为具有共同的轴线(X)。
在图2和图3所示的实施例中，在第一导体310、第二导体320、第三导体 330和第四导体340彼此间隔地设置。例如，在在第一导体310、第二导体320、第三导体330和第四导体340之间设置有绝缘件500。可选地，也可以通过其他合适的方式实现第一导体310、第二导体320、第三导体330和第四导体340彼此之间的间隔设置，例如在第一导体310、第二导体320、第三导体330和第四导体340彼此之间形成间隙，或者在第一导体310、第二导体320、第三导体330和第四导体340彼此之间的间隙中填充电隔离材料等，本申请对此不做限制。
在图2和图3所示的实施例中，第一导体310与第四导体340沿滑环组件300的轴向(X)的投影至少部分重叠，并且第二导体320与第三导体330沿滑环组件300的轴向(X)的投影至少部分重叠。优选地，第一导体310与第四导体340沿滑环组件300的轴向(X)的投影完全重叠，或者第二导体320与第三导体330沿滑环组件300的轴向(X)的投影完全重叠。更优选地，第一导体310与第四导体340沿滑环组件300的轴向(X)的投影完全重叠，并且第二导体320与第三导体330沿滑环组件300的轴向(X)的投影完全重叠。
在图2和图3所示的实施例中，设置有第一电刷311、第二电刷321、第三电刷331和第四电刷341。第一电刷311、第二电刷321、第三电刷331和第四电刷341适于与第一导体310、第二导体320、第三导体330和第四导体340分别形成电接触。进一步地，第一电刷311、第二电刷321、第三电刷331和第四电刷341适于与电连接端子230电接触，使得滑环组件300与治疗装置200电连通。可选地，第一电刷311、第二电刷321、第三电刷331和第四电刷341可以为碳刷、金属电刷、或其他适于形成电接触的结构，本申请对此不做限制。
参考图4，图4为根据本申请的一个实施例的滑环组件的透视示意图。图 4所示的实施例大致上与图2和图3所示的实施例类似，区别在于导体组和各导体的布置。在图4所示的实施例中，第一导体310和第二导体320设置在轴向(X)上的不同位置，并且第三导体330和第四导体340设置在轴向(X)上的不同位置。第一导体310、第二导体320、第四导体340和第三导体330沿轴向(X)依次布置。可选地，第一导体310的径向尺寸和第二导体320的径向尺寸相同。可选地，第四导体340的径向尺寸和第三导体330的径向尺寸相同。优选地，第一导体310、第二导体320、第四导体340和第三导体330具有相同的径向尺寸。可选地，第一导体310、第二导体320、第三导体330和第四导体340中至少两个沿轴向(X)的投影至少部分地重叠。优选地，第一导体310、第二导体320、第三导体330和第四导体340中至少两个沿轴向(X)的投影完全重叠。更优选地，第一导体310、第二导体320、第三导体330和第四导体340沿轴向(X)的投影完全重叠。
参考图5a和图5b，图5a为根据本申请的一个实施例的滑环组件的透视示意图；图5b为图5a所示的滑环组件的剖视示意图。图5a和图5b所示的实施例大致上与图2和图3所示的实施例类似，区别在于导体组和各导体的布置。在图5a和图5b所示的实施例中，第一导体组和第二导体组设置在轴向(X)上的相同位置，其中，第一导体310和第二导体320设置在轴向(X)上的相同位置，并且第三导体330和第四导体340设置在轴向(X)上的相同位置。第一导体310的径向尺寸、第二导体320的径向尺寸、第四导体340的径向尺寸、第三导体330的径向尺寸依次递增。可选地，第一导体310的径向尺寸、第二导体320的径向尺寸、第四导体340的径向尺寸、第三导体330的径向尺寸依次递减。可选地，第一导体310、第二导体320、第四导体340、第三导体330中 至少两个沿径向(Y)的投影至少部分重叠。优选地，第一导体310、第二导体320、第四导体340、第三导体330中至少两个沿径向(Y)的投影完全重叠。优选地，第一导体310、第二导体320、第四导体340、第三导体330沿径向(Y)的投影完全重叠。
参考图6a和图6b，图6a为根据本申请的一个实施例的滑环组件的透视示意图；图6b为图6a所示的滑环组件的剖视示意图。图6a和图6b所示的实施例大致上与图2和图3所示的实施例类似，区别在于导体组和各导体的布置。在图6a和图6b所示的实施例中，第一导体310和第二导体320设置在轴向(X)的第一方向上的不同位置，第四导体340和第三导体(330)设置在轴向(X)的第一方向上的不同位置。请注意，本文中的第一方向指的是沿轴向(X)的任一方向。优选地，第一导体310和第二导体320中径向尺寸较小者的径向尺寸大于第三导体330和第四导体340中径向尺寸较大者的径向尺寸。更优选地，第一导体310的径向尺寸等于第二导体320的径向尺寸，第三导体330的径向尺寸等于第四导体340的径向尺寸。可选地，第一导体310和第二导体320沿轴向(X)的投影至少部分重叠，并且第四导体340和第三导体330沿轴向(X)的投影至少部分重叠。优选地，一导体310和第二导体320沿轴向(X)的投影完全重叠，并且第四导体340和第三导体330沿轴向(X)的投影完全重叠。
在图2至图4、图5a、图5b、图6a和图6b所示的实施例中，当滑环组件300通电时，在第一导体310通入第一电流，该第一电流具有第一相位和第一幅值，在第二导体320通入第二电流，该第二电流具有第二相位和第二幅值，在第三导体330通入第三电流，该第三电流具有第三相位和第三幅值，在第四 导体340通入第四电流，该第四电流具有第四相位和第四幅值。第一相位和第三相位的差值小于或等于第一阈值，或者第一幅值和第三幅值的差值小于或等于第二阈值，并且第二相位和第四相位的差值小于或等于第三阈值，或者第二幅值和第四幅值的差值小于或等于第四阈值，使得第一导体组所产生的第一磁场与第二导体组所产生的第二磁场在空间上的叠加后能够至少部分地相互抵消。可选地，第一阈值和/或第三阈值可以为20°、40°、59°、60°、61°或其他合适的值。优选地，第一阈值和/或第三阈值为60°。可选地，第二阈值为第一幅值和第三幅值中较小者的2倍，并且第四阈值为第二幅值和第四幅值中较小者的2倍。因为第一导体所产生的第一磁场与第二导体组所产生的第二磁场在空间上的叠加后至少部分地相互抵消，所以降低了滑环组件300中产生的磁场(干扰磁场)的整体强度，进而降低了对磁共振成像装置100(如图1所示)的中心磁场的干扰，从而保证了磁共振的成像精度。
参考图7和图8，图7为根据本申请的一个实施例的滑环组件的透视示意图；图8为图7所示的滑环组件的剖视示意图。图7和图8所示的实施例的第一导体310、第二导体320、第三导体330和第四导体340与图2和图3所示的实施例类似。在图7和图8所示的实施例中，每组第一导体组还包括第五导体350，第五导体350配置为环形；每组第二导体组还包括第六导体360，第六导体360配置为环形。
在图7和图8所示的实施例中，第一导体组和第二导体组设置在轴向(X)上的不同位置。可选地，第一导体310、第二导体320和第五导体350中的至少两个设置在轴向(X)上的相同位置，第三导体330、第四导体340和第六导体360中的至少两个设置在轴向(X)上的相同位置。优选地，第一导体310、 第二导体320和第五导体350设置在轴向(X)上的相同位置，并且第三导体330、第四导体340和第六导体360设置在轴向(X)上的相同位置。第一导体310的径向尺寸、第二导体320的径向尺寸和第五导体350的径向尺寸依次递减，并且第六导体360、第四导体340的径向尺寸和第三导体330的径向尺寸依次递减。优选地，第一导体310的径向尺寸等于第六导体360的径向尺寸，第二导体320的径向尺寸等于第四导体340的径向尺寸，第五导体(350)的径向尺寸等于第三导体(330)的径向尺寸。可选地，第一导体组和第二导体组同轴地设置。可选地，第一导体310、第二导体320和第五导体350同轴地设置。可选地，第三导体330、第四导体340和第六导体360同轴地设置。优选地，第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360同轴地设置。例如，在图7和图8所示的实施例中，第一导体310、第二导体320、第三导体330和第四导体340、第五导体350和第六导体360设置为具有共同的轴线(X)。
在图7和图8所示的实施例中，，在第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360彼此间隔地布置。例如，在在第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360之间设置有绝缘件500。可选地，也可以通过其他合适的方式实现第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360彼此之间的间隔地布置，例如在第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360彼此之间形成间隙，或者在第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360彼此之间的间隙中填充电隔离材料等，本申请对此不 做限制。
在图7和图8所示的实施例中，第一导体310与第六导体360沿滑环组件300的轴向(X)的投影至少部分重叠，第二导体320与第四导体340沿滑环组件300的轴向(X)的投影至少部分重叠，并且第五导体350与第三导体330沿滑环组件300的轴向(X)的投影至少部分重叠。优选地，第一导体310与第六导体360沿滑环组件300的轴向(X)的投影完全重叠，或者第二导体320与第四导体340沿滑环组件300的轴向(X)的投影完全重叠，或者第五导体350与第三导体330沿滑环组件300的轴向(X)的投影完全重叠。更优选地，第一导体310与第六导体360沿滑环组件300的轴向(X)的投影完全重叠，并且第二导体320与第四导体340沿滑环组件300的轴向(X)的投影完全重叠，并且第五导体350与第三导体330沿滑环组件300的轴向(X)的投影完全重叠。
图7和图8所示的实施例的第一电刷311、第二电刷321、第三电刷331、第四电刷341与图2和图3所示的实施例类似。图7和图8所示的实施例还包括第五电刷351和第六电刷361，第五电刷351和第六电刷361适于与第五导体350和第六导体360分别形成电接触。进一步地，第五电刷351和第六电刷361适于与电连接端子230电接触，使得滑环组件300与治疗装置200电连通。可选地，第一电刷311、第二电刷321、第三电刷331、第四电刷341、第五电刷351和第六电刷361可以为碳刷、金属电刷、或其他适于形成电接触的结构，本申请对此不做限制。
参考图9，图9为根据本申请的一个实施例的滑环组件的透视示意图。图9所示的实施例大致上与图7和图8所示的实施例类似，区别在于导体组和各导体的设置。在图9所示的实施例中，可选地，第一导体310、第二导体320和 第五导体350中的至少两个设置在轴向(X)上的不同位置，并且第三导体330、第四导体340和第六导体360中的至少两个设置在轴向(X)上的不同位置。优选地，第一导体310、第二导体320和第五导体350设置在轴向(X)上的不同位置，第三导体330、第四导体340和第六导体360设置在轴向(X)上的不同位置。第五导体350、第二导体320、第一导体310、第三导体330、第四导体340和第六导体360沿轴向(X)依次布置。可选地，第一导体310的径向尺寸、第二导体320的径向尺寸和第五导体350的径向尺寸相同。可选地，第六导体360的径向尺寸、第四导体340的径向尺寸和第三导体330的径向尺寸相同。优选地，第一导体310的径向尺寸、第二导体320的径向尺寸、第五导体350的径向尺寸、第六导体360、第四导体340的径向尺寸和第三导体330的径向尺寸相同。更优选地，第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体360沿滑环组件300的轴向(X)的投影完全重叠。
参考图10和图11，图10为根据本申请的一个实施例的滑环组件的透视示意图；图11为图10所示的滑环组件的剖视示意图。图10和图11所示的实施例大致上与图7和图8所示的实施例类似，区别在导体组和各导体的布置。在图10和图11所示的实施例中，第一导体组和第二导体组布置在轴向(X)上的相同位置。可选地，第一导体310、第二导体320和第五导体350中的至少两个设置在轴向(X)上的相同位置，并且第三导体330、第四导体340和第六导体360中的至少两个设置在轴向(X)上的相同位置。优选地，第一导体310、第二导体320和第五导体350置在轴向(X)上的相同位置，并且第三导体330、第四导体340和第六导体360设置在轴向(X)上的相同位置。第五导体350的 径向尺寸、第二导体320的径向尺寸、第一导体310的径向尺寸、第三导体330的径向尺寸、第四导体340的径向尺寸和第六导体360的径向尺寸依次递增。可选地，第五导体350的径向尺寸、第二导体320的径向尺寸、第一导体310的径向尺寸、第三导体330的径向尺寸、第四导体340的径向尺寸和第六导体360的径向尺寸依次递减。可选地，第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体370中至少两个沿径向(Y)的投影至少部分重叠。优选地，第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体370中至少两个沿径向(Y)的投影完全重叠。优选地，第一导体310、第二导体320、第三导体330、第四导体340、第五导体350和第六导体370沿径向(Y)的投影完全重叠。
在根据本申请的另一个实施例中，第一导体组和第二导体组布置在轴向(X)上的相同位置。可选地，第一导体310、第二导体320和第五导体350中的至少两个设置在轴向(X)上的不同位置，并且第三导体330、第四导体340和第六导体360中的至少两个设置在轴向(X)上的不同位置。优选地，第一导体310、第二导体320和第五导体350置在轴向(X)的第二方向上的不同位置，第三导体330、第四导体340和第六导体360设置在轴向(X)的第二方向上的不同位置。请注意，本文中的第一方向指的是沿轴向(X)的任一方向。可选地，第一导体310、第二导体320和第五导体350中径向尺寸最小者的径向尺寸大于第三导体330、第四导体340和第六导体(360)中径向尺寸最大者的径向尺寸。优选地，第一导体310、第二导体320和第五导体350具有相同的径向尺寸。更优选地，第一导体310、第二导体320和第五导体350在轴向(X)上的投影完全重叠。优选地，第三导体330、第四导体340和第六导体(360)具有 相同的径向尺寸。更优选地，第三导体330、第四导体340和第六导体(360)在轴向(X)上的投影完全重叠。
在图7至图11所示的实施例中，第一、第二、第三、第四电流，第一、第二、第三、第四相位，第一、第二、第三、第四幅值以及第一、第二、第三、第四阈值与图2和图3所示的实施例是大致相同的。在图7至图11所示的实施例中，当滑环组件300通电时，在第五导体350通入第五电流，该第五电流具有第五相位和第五幅值，在第六导体360通入第六电流，该第六电流具有第六相位和第六幅值。第五相位和第六相位的差值小于或等于第五阈值，或者第五幅值和第六幅值的差值小于或等于第六阈值，使得第一导体组所产生的第一磁场与第二导体组所产生的第二磁场在空间上的叠加后能够至少部分地相互抵消。可选地，第五阈值可以为20°、40°、59°、60°、61°或其他合适的值。优选地，第五阈值为60°。可选地，第六阈值为第五幅值和第六幅值中较小者的2倍。因为第一导体所产生的第一磁场与第二导体组所产生的第二磁场在空间上的叠加后至少部分地相互抵消，所以降低了滑环组件300中产生的磁场(干扰磁场)的整体强度，进而降低了对磁共振成像装置100(如图1所示)的中心磁场的干扰，从而保证了磁共振的成像精度。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改 进，这些都属于本申请的保护范围。因此，本申请的保护范围应以所附权利要求为准。

Claims (41)

  1. 一种滑环组件(300)，包括：
    至少一组第一导体组，每组所述第一导体组包括第一导体(310)和第二导体(320)，所述第一导体(310)和所述第二导体(320)配置为环形；和
    至少一组第二导体组，每组所述第二导体组包括第三导体(330)和第四导体(340)，所述第三导体(330)和所述第四导体(340)配置为环形，
    其中，所述第一导体(310)、所述第二导体(320)、所述第三导体(330)和所述第四导体(340)彼此间隔地设置，
    所述第一导体(310)配置为通入第一电流，所述第一电流具有第一相位和第一幅值，所述第二导体(320)配置为通入第二电流，所述第二电流具有第二相位和第二幅值，所述第三导体(330)配置为通入第三电流，所述第三电流具有第三相位和第三幅值，所述第四导体(320)配置为通入第四电流，所述第四电流具有第四相位和第四幅值，
    所述第一相位和所述第三相位的差值小于或等于第一阈值，和/或所述第一幅值和所述第三幅值的差值小于或等于第二阈值，
    所述第二相位和所述第四相位的差值小于或等于第三阈值，和/或所述第二幅值和所述第四幅值的差值小于或等于第四阈值，
    所述第一导体组产生的第一磁场和所述第二导体组产生的第二磁场彼此之间至少部分地抵消。
  2. 根据权利要求1所述的滑环组件(300)，其中，所述第一阈值和/或所述第三阈值为60°。
  3. 根据权利要求1所述的滑环组件(300)，其中，所述第二阈值为所述第一 幅值和所述第三幅值中较小者的2倍，和/或所述第四阈值为所述第二幅值和所述第四幅值中较小者的2倍。
  4. 根据权利要求1所述的滑环组件(300)，其中，所述第一导体组和所述第二导体组同轴地设置。
  5. 根据权利要求1所述的滑环组件(300)，其中，第一导体(310)和第二导体(320)同轴地设置。
  6. 根据权利要求1所述的滑环组件(300)，其中，第三导体(330)和所述第四导体(340)同轴地设置。
  7. 根据前述权利要求1至6中任一项所述的滑环组件(300)，其中，所述第一导体组和所述第二导体组设置在轴向(X)上的不同位置。
  8. 根据权利要求7所述的滑环组件(300)，其中，所述第一导体(310)和所述第二导体(320)设置在轴向(X)上的相同位置，所述第三导体(330)和所述第四导体(340)设置在轴向(X)上的相同位置。
  9. 根据权利要求8所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸大于所述第二导体(320)的径向尺寸，所述第四导体(340)的径向尺寸大于所述第三导体(330)的径向尺寸。
  10. 根据权利要求9所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸等于所述第四导体(340)的径向尺寸，所述第二导体(320)的径向尺寸等于所述第三导体(330)的径向尺寸。
  11. 根据权利要求7所述的滑环组件(300)，其中，所述第一导体(310)和所述第二导体(320)设置在轴向(X)上的不同位置，所述第三导体(330)和所述第四导体(340)设置在轴向(X)上的不同位置。
  12. 根据权利要求11所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)、所述第四导体(340)和所述第三导体(330)沿轴向(X)依次设置。
  13. 根据权利要求12所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸、所述第二导体(320)的径向尺寸、所述第四导体(340)的径向尺寸和所述第三导体(330)的径向尺寸相同。
  14. 根据前述权利要求1至6中任一项所述的滑环组件(300)，其中，所述第一导体组和所述第二导体组设置在轴向(X)上的相同位置。
  15. 根据权利要求14所述的滑环组件(300)，其中，所述第一导体(310)和所述第二导体(320)设置在轴向(X)上的相同位置，所述第三导体(330)和所述第四导体(340)设置在轴向(X)上的相同位置。
  16. 根据权利要求15所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸、所述第二导体(320)的径向尺寸、所述第四导体(340)的径向尺寸、所述第三导体(330)的径向尺寸依次递增。
  17. 根据权利要求14所述的滑环组件(300)，其中，所述第一导体(310)和所述第二导体(320)设置在轴向(X)的第一方向上的不同位置，所述第四导体(340)和所述第三导体(330)设置在轴向(X)的第一方向上的不同位置。
  18. 根据权利要求17所述的滑环组件(300)，其中，所述第一导体(310)和所述第二导体(320)中径向尺寸较小者的径向尺寸大于所述第三导体(330)和所述第四导体(340)中径向尺寸较大者的径向尺寸。
  19. 根据权利要求18所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸等于所述第二导体(320)的径向尺寸，所述第三导体(330)的径向 尺寸等于所述第四导体(340)的径向尺寸。
  20. 根据权利要求1至6任一项所述的滑环组件(300)，其中，所述第一导体组还包括第五导体(350)，所述第五导体(350)配置为环形，所述第二导体组还包括第六导体(360)，所述第六导体(360)配置为环形，
    其中，所述第一导体(310)、所述第二导体(320)、所述第三导体(330)、所述第四导体(340)、所述第五导体(350)和所述第六导体(360)彼此间隔地设置，
    所述第五导体(330)配置为通入第五电流，所述第五电流具有第五相位和第五幅值，所述第六导体(360)配置为通入第六电流，所述第六电流具有第六相位和第六幅值，
    所述第五相位和所述第六相位的差值小于或等于第五阈值，或者所述第五幅值和所述第六幅值的差值小于或等于第六阈值。
  21. 根据权利要求20所述的滑环组件(300)，其中，所述第五阈值为60°。
  22. 根据权利要求20所述的滑环组件(300)，其中，所述第六阈值为所述第五幅值和所述第六幅值中较小者的2倍。
  23. 根据权利要求20所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)同轴地设置。
  24. 根据权利要求20所述的滑环组件(300)，其中，第三导体(330)、所述第四导体(340)和所述第六导体(360)同轴地设置。
  25. 根据权利要求20至24中任一项所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)中的至少两个设置在轴向(X)上的相同位置，所述第三导体(330)、所述第四导体(340)和所述 第六导体(360)中的至少两个设置在轴向(X)上的相同位置。
  26. 根据权利要求25所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)设置在轴向(X)上的相同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)设置在轴向(X)上的相同位置。
  27. 根据权利要求26所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸、所述第二导体(320)的径向尺寸和所述第五导体(350)的径向尺寸依次递减，所述第六导体(360)、所述第四导体(340)的径向尺寸和所述第三导体(330)的径向尺寸依次递减。
  28. 根据权利要求27所述的滑环组件(300)，其中，所述第一导体(310)的径向尺寸等于所述第六导体(360)的径向尺寸，所述第二导体(320)的径向尺寸等于所述第四导体(340)的径向尺寸，所述第五导体(350)的径向尺寸等于所述第三导体(330)的径向尺寸。
  29. 根据权利要求20至24中任一项所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)中的至少两个设置在轴向(X)上的不同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)中的至少两个设置在轴向(X)上的不同位置。
  30. 根据权利要求29所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)设置在轴向(X)上的不同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)设置在轴向(X)上的不同位置。
  31. 根据权利要求30所述的滑环组件(300)，其中，所述第五导体(350)、 所述第二导体(320)、所述第一导体(310)、所述第三导体(330)、所述第四导体(340)和所述第六导体(360)沿轴向(X)依次设置。
  32. 根据权利要求20至24中任一项所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)中的至少两个设置在轴向(X)上的相同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)中的至少两个设置在轴向(X)上的相同位置。
  33. 根据权利要求32所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)置在轴向(X)上的相同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)设置在轴向(X)上的相同位置。
  34. 根据权利要求33所述的滑环组件(300)，其中，所述第五导体(350)的径向尺寸、所述第二导体(320)的径向尺寸、所述第一导体(310)的径向尺寸、所述第三导体(330)的径向尺寸、所述第四导体(340)的径向尺寸和所述第六导体(360)的径向尺寸依次递增。
  35. 根据权利要求20至24中任一项所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)中的至少两个设置在轴向(X)上的不同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)中的至少两个设置在轴向(X)上的不同位置。
  36. 根据权利要求35所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)置在轴向(X)的第二方向上的不同位置，所述第三导体(330)、所述第四导体(340)和所述第六导体(360)设置在轴向(X)的第二方向上的不同位置。
  37. 根据权利要求36所述的滑环组件(300)，其中，所述第一导体(310)、所述第二导体(320)和所述第五导体(350)中径向尺寸最小者的径向尺寸大于所述第三导体(330)、所述第四导体(340)和所述第六导体(360)中径向尺寸最大者的径向尺寸。
  38. 根据前述权利要求中任一项所述的滑环组件(300)，还包括第一电刷(311)、第二电刷(321)、第三电刷(331)和第四电刷(341)，所述第一电刷(311)适于与所述第一导体(310)形成电接触，所述第二电刷(321)适于与所述第二导体(320)形成电接触，所述第三电刷(331)适于与所述第三导体(330)形成电接触，所述第四电刷(341)适于与所述第四导体(340)形成电接触。
  39. 根据权利要求20至38中任一项所述的滑环组件(300)，还包括第五电刷(351)和第六电刷(361)，所述第五电刷(351)适于与所述第五导体(350)形成电接触，所述第六电刷(361)适于与所述第六导体(360)形成电接触。
  40. 一种医疗设备(10)，包括治疗装置(200)，所述治疗装置(200)包括根据权利要求1至39中任一项所述的滑环组件(300)，所述滑环组件(300)适于用作为所述治疗装置(200)的供电介质或通信介质。
  41. 根据权利要求40所述的医疗设备(10)，进一步包括磁共振成像装置(100)。
PCT/CN2022/104244 2022-07-06 2022-07-06 滑环组件及具有该滑环组件的医疗设备 WO2024007229A1 (zh)

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EP22946046.4A EP4342383A1 (en) 2022-07-06 2022-07-06 Slidable ring assembly and medical device with same

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220588A (en) * 1991-05-20 1993-06-15 Picker International, Inc. Low inertia brush block assembly
GB2491363A (en) * 2011-05-31 2012-12-05 Elekta Ab Radiotherapeutic apparatus with MRI and slip rings
CN103260511A (zh) * 2010-12-08 2013-08-21 皇家飞利浦电子股份有限公司 滑环组件
CN108603771A (zh) * 2016-12-27 2018-09-28 精刻株式会社 滑环、具有该滑环的旋转传感器装置及滑环的制造方法
WO2020234455A1 (en) * 2019-05-22 2020-11-26 Elekta Limited Slip ring arrangement and connection system employing same
CN215605797U (zh) * 2021-09-01 2022-01-25 上海联影医疗科技股份有限公司 一种滑环组件和医疗系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220588A (en) * 1991-05-20 1993-06-15 Picker International, Inc. Low inertia brush block assembly
CN103260511A (zh) * 2010-12-08 2013-08-21 皇家飞利浦电子股份有限公司 滑环组件
GB2491363A (en) * 2011-05-31 2012-12-05 Elekta Ab Radiotherapeutic apparatus with MRI and slip rings
CN108603771A (zh) * 2016-12-27 2018-09-28 精刻株式会社 滑环、具有该滑环的旋转传感器装置及滑环的制造方法
WO2020234455A1 (en) * 2019-05-22 2020-11-26 Elekta Limited Slip ring arrangement and connection system employing same
CN215605797U (zh) * 2021-09-01 2022-01-25 上海联影医疗科技股份有限公司 一种滑环组件和医疗系统

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