US 12,138,474 B2
Radiotherapy seeds and applicators
Itzhak Kelson, Tel Aviv (IL); Yona Keisari, Ramat Gan (IL); Michael Schmidt, Kfar Saba (IL); Ofer Magen, Hod Hasharon (IL); Amitai Sosnovitch, Nodkim (IL); Guy Keret, Beit Yehoshua (IL); and Amnon Gat, Matan (IL)
Assigned to ALPHA TAU MEDICAL LTD., Jerusalem (IL)
Appl. No. 16/968,646
Filed by Alpha Tau Medical Ltd., Tel Aviv (IL)
PCT Filed Mar. 7, 2019, PCT No. PCT/IB2019/051834
§ 371(c)(1), (2) Date Aug. 10, 2020,
PCT Pub. No. WO2019/171308, PCT Pub. Date Sep. 12, 2019.
Claims priority of provisional application 62/640,077, filed on Mar. 8, 2018.
Prior Publication US 2020/0406059 A1, Dec. 31, 2020
Int. Cl. A61N 5/00 (2006.01); A61L 2/04 (2006.01); A61N 5/10 (2006.01)
CPC A61N 5/1007 (2013.01) [A61L 2/04 (2013.01); A61N 5/1027 (2013.01); A61N 2005/101 (2013.01); A61N 2005/1024 (2013.01); A61N 2005/1098 (2013.01)] 33 Claims
OG exemplary drawing
 
1. Apparatus for brachytherapy, comprising:
a casing;
one or more brachytherapy seeds for implanting in a patient, wherein the seeds are carrying atoms of an alpha-emitting radioactive element for radiotherapy treatment, within the casing; and
a viscous liquid within the casing, surrounding the one or more brachytherapy seeds in a manner preventing daughter nuclei of the atoms from exiting the casing.