X-ray device and imaging device including x-ray device

Patent metadata

Field	Value
Publication number	US-2025261296-A1
Application number	US-202519192307-A
Country	US
Kind code	A1
Filing date	Apr 28, 2025
Priority date	Oct 28, 2022
Publication date	Aug 14, 2025
Grant date	—

Abstract

Embodiments of the present disclosure provide an X-ray device and an imaging device including the X-ray device. The X-ray device may include a high voltage generator and an X-ray tube. The high voltage generator and the X-ray tube may be disposed in a same housing. The housing may be filled with an insulating material.

First claim

What is claimed is:

1 . An X-ray device, comprising a high voltage generator and an X-ray tube, wherein the high voltage generator and the X-ray tube are disposed in a same housing, and the housing is filled with an insulating material;
the high voltage generator includes at least one of a boost transformer module and a rectifier filter module; and the boost transformer module and the rectifier filter module are disposed around the X-ray tube.

2 . The X-ray device of claim 1 , wherein
the boost transformer module is configured to receive an alternating current (AC) voltage and increase the AC voltage; and the rectifier filter module is configured to output a direct current (DC) voltage by rectifying and filtering the increased AC voltage and apply the DC voltage to the X-ray tube.

3 . The X-ray device of claim 2 , wherein the boost transformer module includes at least one boost transformer, and the rectifier filter module includes at least one rectifier filter circuit.

4 . The X-ray device of claim 3 , wherein the boost transformer module includes at least two boost transformers, and the rectifier filter module includes at least two rectifier filter circuits.

5 . The X-ray device of claim 4 , wherein
primary sides of the at least two boost transformers are connected in parallel, and/or secondary sides of the at least two boost transformers are connected in series.

6 . The X-ray device of claim 5 , wherein output ends of the at least two rectifier filter circuits are connected in series, and an intermediate contact of the at least two rectifier filtering circuits is connected to a ground terminal.

7 . The X-ray device of claim 6 , wherein
a first printed circuit board (PCB) surrounds an anode of the X-ray tube and a second PCB surrounds a cathode of the X-ray tube; and the first PCB includes a PCB where a first rectifier filter circuit of the at least two rectifier filter circuits is located, the first rectifier filter circuit being connected in series between the anode and the ground terminal of the X-ray tube; and the second PCB includes a PCB where a second rectifier filter circuit of the at least two rectifier filter circuits is located, the second rectifier filter circuit being connected in series between the cathode and the ground terminal of the X-ray tube.

8 . The X-ray device of claim 3 , wherein part or all of the at least one rectifier filter circuit is located on a PCB
disposed around the X-ray tube.

9 . The X-ray device of claim 8 , wherein the PCB is arc-shaped, and the boost transformer is mounted in a missing region of the arc-shaped PCB.

10 . The X-ray device of claim 3 , wherein the rectifier filter circuit includes at least one of a bipolar continuous wave (CW) circuit or a full bridge rectifier filter circuit.

11 . The X-ray device of claim 10 , wherein the high voltage generator further include a filament transformer, and the filament transformer is configured to isolate a DC high-voltage and amplify a current loaded into a filament of the X-ray bulb, and a primary side of the filament transformer is connected to a filament control unit disposed outside the housing, and a secondary side of the filament transformer is connected to a filament in the X-ray tube.

12 . The X-ray device of claim 11 , wherein the filament transformer and/or the boost transformer module includes a planar transformer structure.

13 . The X-ray device of claim 1 , further comprising at least two PCBs, and the at least two PCBs are stacked, and a second insulating structure is disposed between the at least two stacked PCBs.

14 . The X-ray device of claim 1 , wherein a shielding structure used to shield X-rays is disposed on an outer side of a tube core in the X-ray tube.

15 . The X-ray device of claim 1 , wherein no high-voltage cable is connected between the high voltage generator and the X-ray tube.

16 . An imaging device, comprising an X-ray device, wherein the X-ray device includes a high voltage generator and an X-ray tube, the high voltage generator and the X-ray tube are disposed in a same housing, and the housing is filled with an insulating material, the high voltage generator includes at least one of a boost transformer module and a rectifier filter module; and the boost transformer module and the rectifier filter module are disposed around the X-ray tube.

17 . The imaging device of claim 16 , further comprising a gantry, a power distribution unit and a wireless power transmission device, wherein
the X-ray device is disposed on a rotating side of the gantry, the power distribution unit is disposed on a stationary side of the gantry and includes a first rectifier circuit and a first inverter circuit; the wireless power transmission device includes a main primary side winding and a main secondary side winding, the main primary side winding being disposed on the stationary side of the gantry, the main secondary side winding corresponding to the main primary side winding and being located on the rotating side of the gantry; an output end of the first rectifier circuit is connected to an input end of the first inverter circuit, an output end of the first inverter circuit is connected to the main primary side winding, and the main secondary side winding is connected to an input end of a boost transformer module in the X-ray device; the first rectifier circuit is configured to receive a first alternating current (AC) voltage provided by a power grid and rectify the first AC voltage to output a first direct current (DC) voltage; and the first inverter circuit is configured to convert the first DC voltage output by the first rectifier circuit into a second AC voltage and transmit the second AC voltage to the boost transformer module through the main primary side winding and the main secondary side winding in the wireless power transmission device.

18 . The imaging device of claim 17 , wherein the power distribution unit further includes an energy storage unit, and the energy storage unit is connected to the output end of the first rectifier circuit.

19 . The imaging device of claim 18 , wherein
the first rectifier circuit is an uncontrollable rectifier circuit; and the power distribution unit further includes a bidirectional DC converter, and the bidirectional DC converter is connected in series between the first rectifier circuit and the energy storage unit.

20 . The imaging device of claim 18 , further comprising a second rectifier circuit and a filament control unit, wherein
the second rectifier circuit and the filament control unit are located on the rotating side of the gantry; the power distribution unit further includes a second inverter circuit; the wireless power transmission device further includes an auxiliary primary side winding and an auxiliary secondary side winding, the auxiliary primary side winding being located on the stationary side of the gantry, the auxiliary secondary side winding corresponding to the auxiliary primary side winding and being located on the rotating side of the gantry; the second inverter circuit is configured to convert the first DC voltage output by the first rectifier circuit into a third AC voltage and transmit the third AC voltage to the second rectifier circuit through the auxiliary primary side winding and the auxiliary secondary side winding in the wireless power transmission device; the second rectifier circuit is configured to receive the third AC voltage transmitted by the wireless power transmission device and rec

Assignees

• Wuhan United Imaging Healthcare Co Ltd

Inventors

• Duan Yaoqiang
• Chen Zhi
• Zhang Tieshan
• Li Weihua
• Chu Xu

Classifications

• H05G1/20 Primary

  with high-frequency AC; with pulse trains {(pulse generators in general H03K3/00, H03K4/00)} · CPC title

• H05G1/06

  X-ray tube and at least part of the power supply apparatus being mounted within the same housing · CPC title

• G01N23/046

  using tomography, e.g. computed tomography [CT] · CPC title

• H05G1/12 Primary

  with DC or rectified single-phase AC {or double-phase} · CPC title

• A61B6/40

  Arrangements for generating radiation specially adapted for radiation diagnosis · CPC title