Patent ID: 11937985
Assignee: BRAINLAB AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A radiation therapy system, comprising:
a radiation therapy device;
a patient support structure configured to be positioned relative to the radiation therapy device, the patient support structure including a pair of support rails, each rail including a pin with a saw tooth structure on at least one face; and
a mask system, including:
at least one deformable patient mask sheet; and
plural mask frames, each mask frame including:
an engagement system for engaging a portion of the at least one deformable patient mask sheet and plural interface sections, each interface section including a releasable pin receiver having a sawtooth catch structure on a surface; wherein each sawtooth catch structure is adapted to receive a corresponding one of the pins extending from the pair of support rails and to engage the corresponding saw tooth structure on the corresponding one of the pins to allow the pin to be pushed progressively further into the releasable pin receiver, but to prevent removal of the pin from the releasable pin receiver unless released; and
a release mechanism including grasping sections that, when operated-pressed, cause the sawtooth catch structure of each releasable pin receiver to release from engagement with the saw tooth structure of the corresponding one of the pins.