Method and device for radiotherapy

1. A radiotherapy device, comprising:

a removable probe, adapted for being at least partially introduced into a body of a subject and comprising at least one object selected from the group consisting of a needle, a tip of an endoscope, a tip of a laparoscope and a tip of an imaging device; and

a radionuclide selected from the group consisting of Radium-223 and Radium-224, said radionuclide being retainably embedded on or beneath a surface of said object, said embedding ensuring that said radionuclide remains in said probe while a therapeutic dose of decay chain nuclei and alpha particles of said radionuclide is emitted outside said surface;

said probe being coated by a protective coat, wherein a thickness and a material of said protective coat is selected so as not to prevent said emission of said decay chain nuclei and said alpha particles.

2. The device of claim 1 , further comprising a detector, capable of detecting said radionuclide, said decay chain nuclei and said alpha particles.

3. The device of claim 1 , wherein said object comprises an inner elongated member and an outer tubular member having a mouth section configured for receiving said inner elongated member, said inner elongated member being movable within said outer tubular member and having a distal end and a proximal end, whereby said radionuclide is on or beneath a surface of said distal end.

4. The device of claim 1 , wherein said probe is capable of releasing at least a portion of said radionuclide therefrom, thereby allowing distribution of said radionuclide prior to said emission of said decay chain nuclei and alpha particles.

5. The device of claim 4 , wherein said release of said at least a portion of said radionuclide is by body fluids.

6. A radiotherapy device, comprising:

an uncoated removable probe, adapted for being at least partially introduced into a body of a subject and comprising at least one object selected from the group consisting of a needle, a tip of an endoscope, a tip of a laparoscope and a tip of an imaging device; and

a radionuclide selected from the group consisting of Radium-223 and Radium-224, said radionuclide being embedded on or beneath a surface of said object, wherein said radionuclide remains in said probe while a therapeutic dose of decay chain nuclei and alpha particles of said radionuclide is emitted outside said surface.

7. The device of claim 6 , wherein said object comprises an inner elongated member and an outer tubular member having a mouth section configured for receiving said inner elongated member, said inner elongated member being movable within said outer tubular member and having a distal end and a proximal end, whereby said radionuclide is on or beneath a surface of said distal end.

8. The device of claim 6 , wherein said probe is capable of releasing at least a portion of said radionuclide therefrom, thereby allowing distribution of said radionuclide prior to said emission of said decay chain nuclei and alpha particles.

9. The device of claim 8 , wherein said release of said at least a portion of said radionuclide is by body fluids.

10. The device of claim 1 , wherein said radionuclide is implanted on or beneath said surface.

11. A radiotherapy device, comprising:

a removable probe, adapted for being at least partially introduced into a body of a subject, said removable probe located at a distal end of an inner elongated member, said inner tubular member associated with an outer tubular member having a mouth section configured for receiving said inner elongated member, said inner elongated member being movable within said outer tubular member and having a distal end and a proximal end; and

a radionuclide selected from the group consisting of Radium-223 and Radium-224, said radionuclide being retainably embedded on or beneath a surface of said distal end, wherein a therapeutic dose of decay chain nuclei and alpha particles of said radionuclide is emitted outside said surface;

said probe being coated by a protective coat, wherein a thickness and a material of said protective coat is selected so as not to prevent said emission of said decay chain nuclei and said alpha particles.

12. A radiotherapy device, comprising:

an uncoated removable probe, adapted for being at least partially introduced into a body of a subject, and located at a distal end of an inner elongated member, said inner elongated member associated with an outer tubular member having a mouth section configured for receiving said inner elongated member, said inner elongated member being movable within said outer tubular member and having a distal end and a proximal end; and

a radionuclide selected from the group consisting of Radium-223 and Radium-224, said radionuclide being retainably embedded on or beneath a surface of said distal end, wherein a therapeutic dose of decay chain nuclei and alpha particles of said radionuclide is emitted outside said surface.

13. The device of claim 11 , wherein said outer tubular member comprises at least one window, for allowing protrusion of said distal end of said inner elongated member therethrough.

14. A radiotherapy device, comprising:

a removable probe, adapted for being at least partially introduced into a body of a subject and comprising at least one object selected from the group consisting of a needle, a tip of an endoscope, a tip of a laparoscope and a tip of an imaging device and an injectable bead; and

a radionuclide selected from the group consisting of Radium-223 and Radium-224, said radionuclide being retainably embedded on or beneath a surface of said bead, said embedding ensuring that said radionuclide remains in said probe while a therapeutic dose of decay chain nuclei and alpha particles of said radionuclide is emitted outside said surface;

said injectable bead being coated by a protective coat, wherein a thickness and a material of said protective coat is selected so as not to prevent said emission of said decay chain nuclei and said alpha particles.