EP-4740308-A1 - SLIP RING DEVICES, AND METHODS AND SYSTEMS FOR TRANSMITTING SLIP RING DATA FOR MEDICAL SCANNING DEVICES

Abstract

Embodiments of the present disclosure provide a slip ring device for a medical scanning device. The slip ring device includes a slip ring transmission module and at least two power line communication modules. The slip ring transmission module includes at least one transmission circuit. The at least two power line communication modules are configured to adjust a frequency of data signals to enable the data signals to be transmitted in the transmission circuit. Each of the first transmission end and the second transmission end is provided with at least one of the at least two power line communication modules.

Inventors

• DING, Guangxin
• FAN, ZHOUYUAN
• JIANG, Yifeng

Assignees

• Shanghai United Imaging Healthcare Co., Ltd.

Dates

Publication Date

20260513

Application Date

20240814

Claims (20)

1. A slip ring device for a medical scanning device, comprising: a slip ring transmission module (210) including at least one transmission circuit; and at least two power line communication modules (220) configured to adjust a frequency of data signals to enable the data signals to be transmitted in the transmission circuit, wherein each of the first transmission end and the second transmission end is provided with at least one of the at least two power line communication modules (220) .
2. The device of claim 1, wherein the slip ring transmission module (210) includes a slip ring disk (310) and a conductive assembly (320) ; the slip ring disk (310) is disposed at the first transmission end and the conductive assembly (320) is disposed at the second transmission end, or the slip ring disk (310) is disposed at the second transmission end and the conductive assembly (320) is disposed at the first transmission end; the slip ring disk (310) and the conductive assembly (320) are in sliding contact, the slip ring disk (310) is able to rotate relative to the conductive assembly (320) ; and the slip ring disk (310) includes at least one slideway, and at least one blocking portion is provided on the at least one slideway.
3. The device of claim 2, wherein the at least one blocking portion includes at least one of an insulating layer or a notch.
4. The device of claim 2 or claim 3, wherein one of the at least one slideway includes at least two blocking portions, and the at least two blocking portions divide the one of the at least one slideway into at least two segments; and the at least two segments of the one of the at least one slideway are insulated from each other.
5. The device of claim 4, wherein one of the at least two power line communication modules is a first power line communication module, and the first power line communication module is connected to a predetermined position of each of the at least two segments of the one of the at least one slideway via a connecting line.
6. The device of claim 5, wherein lengths of connecting lines connecting the at least two segments of the one of the at least one slideway are the same.
7. The device of claim 5 or claim 6, wherein the at least two blocking portions are symmetrically disposed on the one of the at least one slideway to make the at least two segments of the one of the at least one slideway of equal length; and/or the predetermined position of one of the at least two segments of the one of the at least one slideway is located at a middle region of the one of the at least two segments of the one of the at least one slideway.
8. The device of any one of claim 5-claim 7, wherein the conductive assembly (320) includes at least one first component and at least one second component corresponding to the at least one first component, one of the at least two power line communication modules (220) disposed on the second transmission end is a second power line communication module, the second power line communication module is connected to the at least one second component by at least two connecting lines; and the at least one first component is arranged at an equal interval along a circumference direction of the one of the at least one slideway.
9. The device of claim 8, wherein the at least one first component includes a carbon brush disc and the at least one second component includes carbon brushes; or the at least one first component includes an electric brush disc and the at least one second component includes electric brushes.
10. The device of any one of claims 1 to 9, wherein the data signals include at least one of medical image data signals or control data signals.
11. The device of claim 10, wherein the data signals and electrical power are transmitted through a same of the at least one transmission circuit.
12. The device of claim 10, wherein the first transmission end includes a master control module, the second transmission end includes an image acquisition module, and the at least two power line communication modules (220) are configured to adjust a frequency of the control data signals to make the control data signals to be bi- directionally transmitted between the master control module and the image acquisition module via the at least one transmission circuit.
13. The device of claim 12, wherein a count of the at least one transmission circuit is equal or exceed 2, a first transmission circuit among the at least two transmission circuits is configured to transmit the electrical power, and a second transmission circuit of the least two transmission circuits is configured to transmit the medical image data signals and/or the control data signals.
14. The device of any one of claims 11 to 12, wherein one of the at least one transmission circuit synchronously transmits at least two of the electrical power, the medical image data signals, or the control data signals.
15. The device of claim 8 or claim 9, wherein the second power line communication module includes a modulator, and the modulator is configured to receive and modulate the data signals to obtain modulated data signals with a changed frequency; and the first power line communication module includes a demodulator, and the demodulator is configured to receive and demodulate the modulated data signals to obtain demodulated data signals with the same frequency of the demodulated data signals.
16. The device of claim 15, wherein the second power line communication module further includes a power amplification circuit, and the power amplification circuit is configured to amplify the data signals modulated by the modulator.
17. The device of claim 15 or claim 16, wherein the first power line communication module further includes a filtering circuit, and the filtering circuit is configured to filter the data signals and transmit the data signals to the demodulator.
18. The device of any one of claims 15 to 17, wherein at least one of the first power line communication module or the second power line communication module further includes a protection unit, the protection unit is configured to receive the data signals modulated by the modulator, convert the data signals into a high voltage signal, and transmit the high voltage signal to the at least one transmission circuit; or the protection unit is configured to receive a high voltage signal converted by the data signals, convert the high voltage signal into a low voltage signal, and transmit the low voltage signal to the demodulator.
19. The device of any one of claims 15 to 18, wherein each of the first power line communication module or the second power line communication module further includes a channel calibration module, and the channel calibration module is configured to obtain channel data for data communication between the first transmission end and the second transmission end.
20. The device of claim 19, wherein the channel calibration module is further configured to generate a communication calibration table based on the channel data, and the communication calibration table is configured for the modulator and the demodulator to code, decode, adjust, and demodulate the data signals.

Description

SLIP RING DEVICES, AND METHODS AND SYSTEMS FOR TRANSMITTING SLIP RING DATA FOR MEDICAL SCANNING DEVICES CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202311020879.1 filed on August 14, 2023, Chinese Patent Application No. 202322186054.9 filed on August 14, 2023, and Chinese Patent Application No.202311245270.4, filed on September 25, 2023, the entire contents of each of which are hereby incorporated by reference. TECHNICAL FIELD The present disclosure relates to the field of medical devices, and in particular, to a slip ring device, and a method and a system for transmitting slip ring data for a medical scanning device. BACKGROUND In X-ray Computed Tomography (CT) systems, a slip ring structure may be used to solve a problem related to the power and data transmission between a rotating portion and a stationary portion of a gantry. A slip ring and a carbon brush may be used to form a power transmission slideway. When the carbon brush slides along the slip ring, the electrical power may be supplied to the rotating portion (such as an X-ray tube) through the slip ring and the carbon brush, and data transmission may be performed via power line communication (PLC) to achieve continuous scanning. However, when a rotor is rotating, the transmission of the data signals on the slip ring track may result in a significant reduction in data transmission rate due to multipath effects. Additionally, transmission circuits may be susceptible to interference from electromagnetic environments, and noises generated by an electrical load of the system may also affect data transmission. Therefore, it is necessary to provide a slip ring device, and a method and a system for transmitting slip ring data for a medical scanning device, which achieves fast and accurate data transmission while ensuring the design and structural costs. SUMMARY One of the embodiments of the present disclosure provides a slip ring device for a medical scanning device. The slip ring device includes a slip ring transmission module and at least two power line communication modules. The slip ring transmission module includes at least one transmission circuit. The at least two power line communication modules are configured to adjust a frequency of data signal s to enable the data signals to be transmitted in the transmission circuit. Each of the first transmission end and the second transmission end is provided with at least one of the at least two power line communication modules. One of the embodiments of the present disclosure provides a method of transmitting slip ring data for a medical scanning device. The method includes receiving data signals to be transmitted from a first transmission  end; obtaining modulated data signals by modulating the data signal based on a communication calibration table to change a frequency of the data signal; and sending the modulated data signal to a second transmission end via at least one transmission circuit. One of the embodiments of the present disclosure provides a system for transmitting slip ring data for a medical scanning device. The system includes a receiving module configured to receive data signals to be transmitted from a first transmission end; a modulation module configured to obtain modulated data signals by modulating the data signal based on a communication calibration table to change a frequency of the data signal; and a transmission module configured to transmit modulated data signal to a second transmission end via at least one transmission circuit. One of the embodiments of the present disclosure provides a slip ring device for a medical scanning device. The slip ring device includes a slip ring disk and a conductive assembly. The slip ring disk is disposed at a rotating assembly of the medical scanning device and the conductive assembly is disposed at a fixed assembly of the gantry of the medical scanning device, or the slip ring disk is disposed at the fixed assembly of the gantry of the medical scanning device and the conductive assembly is disposed at the rotating assembly of the gantry of the medical scanning device. The slip ring disk and the conductive assembly are in sliding contact, and the slip ring disk is able to rotate relative to the conductive assembly. The slip ring disk includes at least one slideway. The at least one slideway includes at least one blocking portion. One of the embodiments of the present disclosure provides a slip ring device. The slip ring device includes a slip ring transmission module and at least two power line communication modules. The slip ring transmission module forms at least one transmission circuit. The at least two transmission circuits are configured to obtain electrical power through a first transmission end of the transmission circuit and then output the electrical power to a load via a second transmission end of the transmission circuit. Each of the first transmission end and the