Patent ID: 11904186
Assignee: THE UNIVERSITY OF HONG KONG—SHENZHEN HOSPITAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 1:
2. The radiotherapeutical or radiosurgical system according to claim 1, wherein said at least two radiation sources include at least three radiation sources comprising a third radiation source that is also configured to rotate around the common rotation axis and to target at or to aim at the common point on the common rotation axis;
wherein the third radiation source emits a third radiation beam, which irradiates upon the predetermined treatment target from a third direction along a central axis of the third radiation beam, and a third angle α3 is defined as an angle between the third direction and the common rotation axis;
wherein, when the at least three radiation sources are rotating around the common rotation axis, the first angle α1, the second angle α2, and the third angle α3 are independently of each other constant or being varied or being changed; wherein, when the first angle α1, the second angle α2 and the third angle α3 are independently of each other being varied or being changed, the first angle α1, the second angle α2, and/or the third angle α3 is/are being varied or being changed within a magnitude of less than ±15° of initial values of the first angle α1, the second angle α2, and/or the third angle α3 before said at least three radiation sources start to rotate around the common rotation axis; and
wherein, when the at least three radiation sources are rotating around the common rotation axis, it always remains that at least α1≠α2, α1≠α3, and α2≠α3, regardless whether the first angle α1, the second angle α2, and the third angle α3 are independently of each other constant or being varied or being changed.