IP Library Granted Patent US 8,834,837
Granted Patent B2
US 8,834,837 · App. 12/547,514 · Granted Sep 16, 2014

Method and device for radiotherapy

Inventors: Itzhak Kelson (Tel-Aviv, IL); Lior Arazi (Tel-Aviv, IL)
Assignee: Ramot at Tel-Aviv University Ltd.
A61N5/1007A61N5/1001A61N5/1027A61K51/1282
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Quick Facts
Patent No.
US 8,834,837
App. No.
12/547,514
Granted
Sep 16, 2014
Kind
B2
Abstract

A radiotherapy method, comprising positioning a predetermined amount of a radionuclide selected from the group consisting of Radium-223, Radium-224, Radon-219 and Radon-220, in proximity to and/or within a tumor of a subject, for a predetermined time period. The predetermined amount and the predetermined time period are selected sufficient for the radionuclide to administering a predetermined therapeutic dose of decay chain nuclei and alpha particles into the tumor.

Claims (31)

1. A radiotherapy method, comprising:

positioning at least one removable radiotherapy device having a surface and a predetermined amount of a radionuclide retainably embedded on or beneath said surface in proximity to and/or within a tumor of a subject, for a predetermined time period, said predetermined amount and said predetermined time period selected sufficient for said radionuclide to administer a predetermined therapeutic dose of decay chain nuclei and alpha particles into said tumor;

wherein said radionuclide is selected from the group consisting of Radium-223 and Radium-224, and wherein said embedding ensures that said radionuclide remains in said at least one radiotherapy device while said decay chain nuclei and alpha particles are recoiled outside said surface.

2. The method of claim 1 , further comprising removing said radionuclide of said tumor once said predetermined therapeutic dose of decay chain nuclei and alpha particles is administered.

3. The method of claim 1 , wherein said at least one radiotherapy device comprises a needle.

4. The method of claim 1 , wherein said at least one radiotherapy device comprises at least one bead.

5. The method of claim 1 . wherein said radionuclide is soluble in a solute and further wherein said positioning said radionuclide comprises administering to the subject in proximity to and/or within said tumor a solution of said radionuclide in said solute.

6. The method of claim 1 , further comprising recording a dose of said alpha particles.

7. The method of claim 1 , wherein said predetermined therapeutic dose of said decay chain nuclei and said alpha particles is from about 100 to about 100000 rem.

8. The method of claim 1 , wherein said predetermined amount of said radionuclide is from about 10 nanoCurie to about 10 microCurie.

9. The method of claim 1 , wherein said predetermined time is from about 10 seconds to about 10 hours.

10. The method of claim 1 , wherein said predetermined time is a few days.

11. A method of removing a tumor and remnants thereof present in a body of a subject, the method comprising:

(a) debulking at least a portion of the tumor and exposing tissue surrounding the tumor; and

(b) positioning at least one removable radiotherapy device having a surface and a predetermined amount of a radionuclide retainably embedded on, or beneath said surface in proximity to and/or within said surrounding tissue, for a predetermined time period, said predetermined amount and said predetermined time period selected sufficient for said radionuclide to administer a predetermined therapeutic dose of decay chain nuclei and alpha particles into said surrounding tissue, wherein said radionuclide is selected from the group consisting of Radium-223 and Radium-224, and wherein said embedding ensures that said radionuclide remains in said at least one radiotherapy device while said decay chain nuclei and alpha particles are recoiled outside said surface.

12. The method of claim 11 , wherein said debulking is performed laparoscopically.

13. The method of claim 11 , wherein said debulking is performed endoscopically.

14. The method of claim 11 , wherein said debulking is performed surgically.

15. The method of claim 11 , wherein said debulking is performed ablatively.

16. The method of claim 11 , wherein said debulking is by a laser beam.

17. The method of claim 15 , wherein said debulking comprises applying heat to the tumor.

18. The method of claim 15 , wherein said debulking is by a microwave antenna.

19. The method of claim 15 , wherein said debulking is by a radiofrequency electrode.

20. The method of claim 15 , wherein said debulking is by an ultrasound device.

21. The method of claim 11 , wherein said positioning of said radionuclide is by a radiotherapy device having a surface whereby said radionuclide is on or beneath said surface.

22. The method of claim 21 , wherein said radiotherapy device comprises a needle.

23. The method of claim 11 further comprising recording a dose of said alpha particles.

24. The method of claim 11 , wherein said predetermined therapeutic dose of said decay chain nuclei and said alpha particles is from about 100 to about 100000 rem.

25. The method of claim 11 , wherein said predetermined amount of said radionuclide is from about 10 nanoCurie to about 10 microCurie.

26. The method of claim 11 , wherein said predetermined time is from about 10 seconds to about 10 hours.

27. The method of claim 11 , wherein said predetermined time is a few days.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2016
From: ALTHERA MEDICAL LTD.
To: ALPHA TAU MEDICAL LTD.
Reel/Frame 038839/0876 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2014
From: RAMOT AT TEL-AVIV UNIVERSITY LTD.
To: ALTHERA MEDICAL LTD.
Reel/Frame 034103/0877 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2014
From: KELSON, ITZHAK; ARAZI, LIOR
To: RAMOT AT TEL-AVIV UNIVERSITY LTD.
Reel/Frame 033017/0875 →
Continuity (3)
Division 10554743
Provisional Application 60466408 · Apr 30, 2003
Related Publication 20090311173A1 · Dec 17, 2009