GLEICH, Bernhard,SCHMALE, Ingo,STEHNING, Christian,RAHMER, Jürgen Erwin,MAZURKEWITZ, Peter,BONTUS, Claas,WIRTZ, Daniel,BORGERT, Jörn
申请号：
EPEP2017/055895
公开号：
WO2017/157879A1
申请日:
2017.03.14
申请国别(地区):
WO
年份:
2017
代理人:
摘要：
The present invention relates to magnetically activatable inserts. In order to provide improved ways of controlling, a radiation providing seed (10) for use in radiotherapy is provided. The seed comprises a seed core (12) that is configured to generate radiation, a casing (14) providing a cavity (16), and a movable (18) insert which is guided inside the cavity. The seed core is attached to the movable insert, which is configured as a magnetic insert, such that upon applying a magnetic field with a moving component, the insert is movable relative to the casing. The insert is movable between a first position (P1) and a second position (P2). In the first position, the seed core is in a shielded arrangement within the casing, and in the second position, the seed core is in an exposed arrangement, such that in the second position, the seed provides more radiation than in the first position. The movable insert is configured to cause a movement between the first and the second position upon being moved relative to the casing. Further, the insert is a screw insert (20) that is movably hold by a threaded connection arranged along a thread axis. The screw insert is rotatable relative to the casing to cause a screw motion resulting in a movement along the thread axis. And the screw insert has a magnetization component (24) arranged transverse to the thread axis, such that upon applying a magnetic field with a rotational component, the screw insert is rotatable relative to the casing.La présente invention concerne des inserts électromagnétiques contrôlables. Afin de de fournir des méthodes améliorées de commande, la présente invention concerne un grain produisant un rayonnement (10) pour utilisation en radiothérapie. Le grain comprend un noyau de grain (12) qui est configuré pour générer un rayonnement, un boîtier (14) fournissant une cavité (16), et un insert mobile (18) qui est guidé à lintérieur de la cavité. Le noyau de grain est fixé à linsert mobile, qui est configuré sou
