公开(公告)号：US20190175943A1

公开(公告)日：2019-06-13

申请号：US16166572

申请日：2018-10-22

Applicant: ViewRay Technologies, Inc.

Inventor： James F. DEMPSEY ,  Iwan KAWRYKOW

IPC: A61N5/10

Abstract: Magnetic resonance (MR) guided radiation therapy (MRgRT) enables control over the delivery of radiation based on patient motion indicated by MR imaging (MRI) images captured during radiation delivery. A method for MRgRT includes: simultaneously using one or more radiation therapy heads to deliver radiation and an MRI system to perform MRI; using a processor to determine whether one or more gates are triggered based on at least a portion of MRI images captured during the delivery of radiation; and in response to determining that one or more gates are triggered based on at least a portion of the MRI images captured during the delivery of radiation, suspending the delivery of radiation.

公开(公告)号：US20190168028A1

公开(公告)日：2019-06-06

申请号：US16204838

申请日：2018-11-29

Applicant: ViewRay Technologies, Inc.

Inventor： James F. DEMPSEY ,  Iwan KAWRYKOW

IPC: A61N5/10

Abstract: A photon therapy delivery system can deliver radiation therapy to a patient via a photon beam. The system can utilize a controller configured to facilitate delivery of radiation therapy via a photon beam and also a particle beam. This can include receiving radiation therapy beam information for radiation therapy treatment of a patient utilizing the particle beam and photon beam. Also, patient magnetic resonance imaging (MRI) data can be received during the radiation therapy treatment. Utilizing the patient MRI data, real-time calculations of a location of dose deposition for the particle beam and for the photon beam can be determined taking into account interaction properties of soft tissues through which the particle beam passes.

公开(公告)号：US20190240511A1

公开(公告)日：2019-08-08

申请号：US16252305

申请日：2019-01-18

Applicant: ViewRay Technologies, Inc.

Inventor： Iwan KAWRYKOW ,  Eyad KISHAWI

IPC: A61N5/10 ,  A61B5/055 ,  G01T1/185 ,  G01T1/29

Abstract: An ion chamber has a chamber having an interior volume. There is a first electrode and a second electrode in the chamber and separated by a gap. A collector electrode is positioned between the first electrode and the second electrode. The collector electrode is shaped to occlude a portion of the first electrode from the second electrode.