Treatment energy delivery system

Patent metadata

Field	Value
Publication number	US-10661102-B2
Application number	US-201715476550-A
Country	US
Kind code	B2
Filing date	Mar 31, 2017
Priority date	Mar 31, 2017
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

A medical device includes: a base; a positioner coupled to the base; an accelerator coupled to the positioner, wherein the positioner is operable to rotate the accelerator relative to the base about at least two axes; and a power source coupled to the accelerator, the power source configured to provide microwave power for the accelerator, wherein a position of the power source relative to the base remains fixed during movement of the accelerator. A medical device includes: a base; a positioner coupled to the base; an accelerator coupled to the positioner; a power source configured to provide microwave power for the accelerator, wherein a position of the source relative to the base remains fixed during movement of the accelerator; and a waveguide for coupling the power source and the accelerator; wherein the waveguide has a first segment with a first cross section, the first cross section being a circular cross-section.

First claim

The invention claimed is:

1. A medical device comprising:
a base;
a positioner coupled to the base;
an accelerator coupled to the positioner, wherein the positioner is operable to rotate the accelerator relative to the base about at least two axes;
a waveguide; and
a power source coupled to the accelerator via the waveguide, the power source configured to provide microwave power for the accelerator, wherein a position of the power source relative to the base remains fixed during movement of the accelerator;
wherein the waveguide has an arm with opposite ends, wherein the arm comprises a first rectilinear tubular segment and a second rectilinear tubular segment, wherein at least a part of the first rectilinear tubular segment and at least a part of the second rectilinear tubular segment are located between the opposite ends of the arm, the first rectilinear tubular segment having a first lumen with a first cross section, the second rectilinear tubular segment having a second lumen with a second cross section that is different from the first cross section of the first lumen, wherein the first lumen with the first cross section extends along a longitudinal axis of the arm, and wherein the second lumen with the second cross section extends along the longitudinal axis of the arm.

2. The medical device of claim 1 , wherein the power source is coupled to the base.

3. The medical device of claim 1 , wherein the power source is supported on a floor and is away from the base.

4. The medical device of claim 1 , wherein the positioner comprises a robotic arm system.

5. The medical device of claim 4 , wherein the robotic arm system comprises a first arm with a first end and a second end, and a second arm with a third end and a fourth end.

6. The medical device of claim 1 , wherein the positioner comprises a ring gantry.

7. The medical device of claim 1 , wherein the accelerator is configured to provide a particle beam, and wherein the medical device further comprises a target for interacting with the particle beam to generate treatment radiation.

8. The medical device of claim 7 , wherein the treatment radiation has an energy level that is anywhere from 6 MeV to 10 MeV.

9. The medical device of claim 7 , wherein the treatment radiation has a dose rate that is anywhere from 50 to 100 Gy/min.

10. The medical device of claim 7 , wherein an isocenter associated with the treatment radiation is variable.

11. The medical device of claim 7 , further comprising a collimator configured to collimate the radiation.

12. The medical device of claim 1 , wherein the accelerator is configured to provide a particle beam as treatment energy.

13. The medical device of claim 12 , wherein the particle beam has an energy level that is higher than 1 MeV.

14. The medical device of claim 1 , wherein at least a part of the waveguide has a circular cross-section.

15. The medical device of claim 1 , wherein the waveguide comprises a first waveguide part and a second waveguide part that is moveably coupled to the first waveguide part.

16. The medical device of claim 15 , wherein the second waveguide part is moveably coupled to the first waveguide part via a rotary joint.

17. The medical device of claim 1 , wherein at least a portion of the waveguide is located within the positioner.

18. The medical device of claim 1 , wherein the second cross section comprises a rectangular cross section, and the second rectilinear tubular segment interfaces with the accelerator.

19. The medical device of claim 1 , wherein the positioner is free from at least a majority of a weight of the power source.

20. The medical device of claim 1 , further comprising a radiation shielding carried by the positioner.

21. The medical device of claim 1 , wherein the power source comprises a klystron.

22. The medical device of claim 1 , wherein the second cross section of the second rectilinear tubular segment that is different from the first cross section is interfacing with the accelerator.

23. A medical device comprising:
a base;
a positioner coupled to the base;
an accelerator coupled to the positioner;
a power source coupled to the accelerator, the power source configured to provide microwave power for the accelerator, wherein a position of the source relative to the base remains fixed during movement of the accelerator; and
a waveguide for coupling the power source and the accelerator;
wherein the waveguide has an arm with opposite ends, wherein the arm comprises a first rectilinear tubular segment and a second rectilinear tubular segment, wherein at least a part of the first rectilinear tubular segment and at least a part of the second rectilinear tubular segment are located between the opposite ends of the arm, the first rectilinear tubular segment having a first lumen with a first cross section, the first cross section being a circular cross-section, the second rectilinear tubular segment having a second lumen with a second cross section that is different from the first cross section of the first lumen, wherein the first lumen with the first cross section extends along a longitudinal axis of the arm, and wherein the second lumen with the second cross section extends along the longitudinal axis of the arm.

24. The medical device of claim 23 , wherein the waveguide comprises a first waveguide part and a second waveguide part that is moveably coupled to the first waveguide part, the first waveguide part comprising the first rectilinear tubular segment.

25. The medical device of claim 24 , wherein the second waveguide part is moveably coupled to the first waveguide part via a rotary joint.

26. The medical device of claim 23 , wherein at least the first rectilinear tubular segment of the waveguide is located within the positioner.

27. The medical device of claim 23 , wherein the power source comprises a klystron.

28. The medical device of claim 23 , wherein the positioner comprises a robotic arm system.

29. The medical device of claim 23 , wherein the second cross section comprises a rectangular cross section, and the second rectilinear tubular segment interfaces with the accelerator.

30. The medical device of claim 23 , wherein the second cross section of the second rectilinear tubular segment that is different from the first cross section is interfacing with the accelerator.

Assignees

• Varian Med Sys Inc

Inventors

• Clayton James E
• Trail Mark E

Classifications

• A61N2005/1022

  Generators, e.g. X-ray tubes · CPC title

• A61N2005/1087

  Ions; Protons · CPC title

• A61N2005/1094

  Shielding, protecting against radiation · CPC title

• A61N5/1082

  having multiple beam rotation axes · CPC title

• A61N2005/1089

  Electrons · CPC title