Medical radiation device

Patent metadata

Field	Value
Publication number	US-2016287904-A1
Application number	US-201415036799-A
Country	US
Kind code	A1
Filing date	Nov 13, 2014
Priority date	Nov 14, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A medical radiation device, including a main frame, and a radiation assembly and an imaging assembly respectively located at an end of the main frame. After an imaging scan is completed and diseased tissue positioning images are taken, a patient is directly moved to the other end of the main frame to allow the radiation assembly to perform a radiation treatment to improve the efficiency of the radiation treatment after the completion of diseased tissue positioning, and effectively reduce movement of the patient when the patient is being moved for radiation treatment after the imaging assembly completes diseased tissue positioning, thus reducing a positioning error of the diseased tissue caused by too much movement.

First claim

1 . A medical radiation apparatus comprising:
a main frame, and a CT assembly and a radiation assembly respectively positioned on an end of the main frame along a first axial direction; wherein the radiation assembly comprises a treatment head rotatable around the first axial direction, for emitting radiation rays; wherein the CT assembly comprises a ray tube and a detector in an opposing arrangement, the ray tube and the detector are respectively positioned on opposite sides of the first axial direction and rotatable around the first axial direction; wherein the treatment head is fixed to one end of the main frame; and wherein the CT assembly comprises a CT rotor rotatably mounted to the main frame, the CT rotor rotates around the first axial direction with respect to the main frame, and the ray tube and the detector are mounted on the CT rotor.

2 . The medical radiation apparatus of claim 1 , comprising
the main frame comprises a cylindrical body defining openings on both ends thereof, the first axial direction being a central axis of the cylindrical body; wherein the treatment head is fixed to one end of the cylindrical body; and the CT assembly is positioned the other end of the cylindrical body.

3 . (canceled)

4 . The medical radiation apparatus of claim 2 comprising:
the CT assembly further comprises a CT stator fixed to the cylindrical body, and the CT rotor is mounted on the CT stator.

5 . The medical radiation apparatus of claim 4 , wherein the CT stator is fixed to an inner wall of the cylindrical body, and comprises a mounting hole defined along the first axial direction; wherein the CT rotor is mounted on the CT stator via a bearing.

6 . The medical radiation apparatus of claim 4 , wherein the main frame comprises a couch plate movable along the first axial direction to pass through the openings defined on both ends of the cylindrical body; and
wherein a through-hole is defined in the CT rotor along the first axial direction, and the ray tube and the detector are positioned on opposite sides of the through-hole, and the couch plate is movable to pass through the through-hole.

7 . The medical radiation apparatus of claim 4 , wherein the CT stator further comprises a CT driving mechanism for driving the CT rotor to rotate; and wherein the CT driving mechanism comprises a first motor, a first driving wheel coupled to the first motor, and a first driving belt coupled between the CT rotor and the first driving wheel.

8 . The medical radiation apparatus of claim 2 , wherein the main frame comprises a base for supporting the cylindrical body thereon, wherein the base is provided with a roller driving mechanism for driving the cylindrical body to rotate.

9 . The medical radiation apparatus of claim 8 , wherein the roller driving mechanism comprises a second motor, a second driving wheel coupled to the second motor, and a second driving belt wrapping around the second driving wheel and a surface of the cylindrical body.

10 . The medical radiation apparatus of claim 9 , wherein the roller driving mechanism further comprises a guide wheel arranged on the base.

11 . A medical radiation apparatus comprising:
a main frame, rotatable about a central axis thereof; a treatment head, connected with the main frame, for emitting radiation rays; and an imaging assembly, the imaging assembly defining an imaging through-hole, to image an object located within the imaging through-hole, wherein the imaging assembly is connected with the main frame, wherein during a radiation treatment using the treatment head, the imaging assembly rotates along with the main frame when the main frame rotates, and during imaging of the object located within the imaging through-hole using the imaging assembly, the imaging assembly is rotatable independent of the main frame.

12 . The medical radiation apparatus of claim 11 , wherein the main frame comprises a cylindrical body with openings defined on both ends thereof, wherein the openings of the cylindrical body are substantially coaxial with the imaging through-hole.

13 . The medical radiation apparatus of claim 11 , wherein it further comprises a rotor equipped with the imaging assembly, wherein the rotor is rotatably connected with the main frame.

14 . The medical radiation apparatus of claim 13 , wherein the rotor defines the imaging through-hole, wherein the main frame comprises a cylindrical body with openings defined on both ends thereof, and wherein the openings of the cylindrical body is substantially coaxial with the imaging through-hole.

15 . The medical radiation apparatus of claim 13 further comprising:
a stator of the imaging apparatus, connected with the main frame and rotates along with the main frame when the main frame rotates; and
a bearing, connected with the rotor and the stator of the imaging apparatus.

16 . (canceled)

17 . The medical radiation apparatus of claim 11 , wherein the imaging assembly is located within an interior of the main frame.

18 . The medical radiation apparatus of claim 11 , wherein the imaging assembly is located at least partially within an interior of the main frame.

19 . A medical radiation apparatus comprising:
a main frame, rotatable about a central axis thereof; a treatment head, connected with the main frame, for emitting radiation rays; a stator of an imaging apparatus, wherein the stator is connected with the main frame and rotates along with the main frame when the main frame rotates; a rotor, defining an imaging through-hole and equipped with the imaging assembly, wherein the imaging assembly is configured to image an object located within the imaging through-hole; and a connecting component, for connecting the stator of the imaging apparatus to the rotor, wherein the rotor is rotatable independent of the stator of the imaging apparatus and the main frame.

20 . The medical radiation apparatus of claim 19 , wherein during imaging of the object located within the imaging through-hole by the imaging assembly, the rotor is rotatable independent of the main frame.

21 . The medical radiation apparatus of claim 19 , wherein the connecting component comprises a bearing.

22 . The medical radiation apparatus of claim 19 , wherein the main frame comprises a cylindrical body with openings defined on both ends thereof, wherein the openings of the cylindrical body are substantially coaxial with the imaging through-hole.

23 . The medical radiation apparatus of claim 19 , wherein the rotor and the stator of the imaging apparatus are located at least partially within an interior of the main frame.

24 . The medical radiation apparatus of claim 19 , wherein the rotor and the stator of the imaging apparatus are located completely within an interior of the main frame.

25 . A medical radiation apparatus comprising:
a main frame, and a CT assembly and a radiation assembly respectively positioned on an end of the main frame along a first axial direction; wherein the CT assembly comprises a CT stator, and a CT rotor equipped with a ray tube and a detector; wherein the CT stator is connected with the main frame and rotates about the first axial direction along with the main frame when the main frame rotates, and the CT rotor is rotatable independent of the CT stator.

26 . The medical radiation apparatus of to claim 25 comprising:
the main frame comprises a cylindrical body with ope

Assignees

• Shanghai United Imaging Healthcare Co Ltd

Inventors

• Liu Jian
• Zhang Jian
• Shao Yuelin

Classifications

• A61N2005/1063

  maintaining the position when the patient is moved from an imaging to a therapy system · CPC title

• A61B6/447

  the source unit or the detector unit being mounted to counterpoise or springs · CPC title

• A61N2005/1061

  using an x-ray imaging system having a separate imaging source · CPC title

• A61B6/035

  Mechanical aspects of CT · CPC title

• A61N5/1049 Primary

  for verifying the position of the patient with respect to the radiation beam · CPC title