Reflexion Medical, Inc.

Varian Medical Systems, Inc.

Christopher Eric Brown

Peter D Olcott

Rostem Bassalow

Yevgen Voronenko

Ayan Mitra

Debashish Pal

Stanley Mansfield

Steven W Prince

Stephen Mohr

Dusan Baic

Rachel Rieger

William A Strachan

Sean Kelley

Peter Demetri Olcott

Systems and methods for shuttle mode radiation delivery are described herein. One method for radiation delivery comprises moving the patient platform through the patient treatment region multiple times during a treatment session. This may be referred to as patient platform or couch shuttling (i.e., couch shuttle mode). Another method for radiation delivery comprises moving the therapeutic radiation source jaw across a range of positions during a treatment session. The jaw may move across the same range of positions multiple times during a treatment session. This may be referred to as jaw shuttling (i.e., jaw shuttle mode). Some methods combine couch shuttle mode and jaw shuttle mode. Methods of dynamic or pipelined normalization are also described.

Systems and methods for shuttle mode radiation delivery

In some embodiments, an apparatus comprises a stationary frame and a thermal ring. The thermal ring may be rotatably coupled to the stationary frame and disposed relative to the stationary frame such that the thermal ring and the stationary frame define an enclosure. The thermal ring may include a thermally-conductive substrate configured to be in thermal contact with a heat-generating component. Heat from the heat-generating component may be transferred to the stationary frame via the enclosure.

Thermal cooling ring for radiation therapy system

In a beam filter assembly, a base filter is employed to modify a beam quality of a radiation beam of a base energy level and a first filter slice is stacked with the base filter to modify a beam quality of a radiation beam of a first energy level higher than the base energy level. In a beam filter positioning device, a base stage carries a base filter and a first stage carries a filter slice. The base stage is provided with a first engagement site and a second engagement site. The first stage is provided with a first engagement site, a second engagement site, and an open port. The first stage and the base stage are each independently movable relative to the beamline. The first stage is engageable with the base stage when at least one of the first and second engagement sites of the first stage is aligned with at least one of the first and second engagement sites of the base stage, and is further movable with the base stage in unison when engaged.

Beam filter assembly and beam filter positioning device

A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.

Beam filter positioning device

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Morgan Hill, CA, United States of America

Christopher Eric Brown