公开(公告)号：US11887803B2

公开(公告)日：2024-01-30

申请号：US17745135

申请日：2022-05-16

Applicant: Siemens Healthcare GmbH

Inventor： Xiao Dong ,  Zhen Neng Zhang ,  Da Peng Hao ,  Qi Zhou

IPC: H01J35/10

CPC classification number: H01J35/1024 ,  H01J2235/1066 ,  H01J2235/1086 ,  H01J2235/1208

Abstract: The disclosure relates to an X-ray tube, comprising a cathode and an anode, the cathode and anode being accommodated in a housing which provides a vacuum environment.

公开(公告)号：US12100571B2

公开(公告)日：2024-09-24

申请号：US17839540

申请日：2022-06-14

Applicant: FUJIFILM Healthcare Corporation

Inventor： Yutaro Tanabe ,  Kimihiro Nakayama ,  Ren Sonoda ,  Yoshitaka Seki

IPC: H01J35/10

CPC classification number: H01J35/1024 ,  H01J2235/1053

Abstract: An X-ray tube device capable of preventing a holder holding a bearing from suffering damage, and an X-ray CT apparatus including the X-ray tube device are provided. The X-ray tube device includes: a cathode that produces an electron beam; an anode that produces X rays upon irradiation with the electron beam; a rotating portion that supports and rotates the anode; bearings that are placed at a predetermined distance from each other in a direction of a rotation axis of the rotating portion, each of the bearings having an outer ring and an inner ring between which rolling elements are sandwiched; and a holder that holds the outer rings. The holder has an inner wall that is spaced from an edge of the outer ring.

公开(公告)号：US12074006B2

公开(公告)日：2024-08-27

申请号：US17806732

申请日：2022-06-13

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Dun Li ,  Mingchun Zhai ,  Guangzhong Bao ,  Xiao Fang

IPC: H01J35/10 ,  H05G1/02

CPC classification number: H01J35/106 ,  H01J35/1024 ,  H01J35/107 ,  H05G1/025 ,  H01J2235/1006 ,  H01J2235/1204 ,  H01J2235/1208 ,  H01J2235/1262 ,  H01J2235/1266

Abstract: A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure.

公开(公告)号：US20240186098A1

公开(公告)日：2024-06-06

申请号：US18521010

申请日：2023-11-28

Applicant: Siemens Healthcare GmbH

Inventor： Yu Tong Liu ,  Xiao Dong ,  Shan Lu

IPC: H01J35/10 ,  F16C19/04

CPC classification number: H01J35/1024 ,  F16C19/04 ,  F16C2380/16

Abstract: An X-ray tube bearing assembly may include a bearing housing including an accommodating cavity; and a bearing core accommodated in the accommodating cavity. The bearing housing may include first and second portions. The second portion surrounds and forms a portion of the accommodating cavity to accommodate the bearing core. The first portion extends out of the second portion and surrounds and forms another portion of the accommodating cavity, and the other portion of the accommodating cavity forms an accommodating hollow cavity. The first portion may have a different structural rigidity to that of the second portion.