Patents by Inventor Chieh C. Cheng

Chieh C. Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patient alignment system with external measurement and object coordination for radiation therapy system
    Patent number: 7446328
    Abstract: A patient alignment system for a radiation therapy system. The alignment system includes multiple external measurement devices which obtain position measurements of components of the radiation therapy system which are movable and/or are subject to flex or other positional variations. The alignment system employs the external measurements to provide corrective positioning feedback to more precisely register the patient and align them with a radiation beam. The alignment system can be provided as an integral part of a radiation therapy system or can be added as an upgrade to existing radiation therapy systems.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: November 4, 2008
    Assignee: Loma Linda University Medical Centre
    Inventors: Nickolas S. Rigney, Daniel C. Anderson, David A. Lesyna, Daniel W. Miller, Michael F. Moyers, Chieh C. Cheng, Michael A. Baumann
  • PATH PLANNING AND COLLISION AVOIDANCE FOR MOVEMENT OF INSTRUMENTS IN A RADIATION THERAPY ENVIRONMENT
    Publication number: 20080187097
    Abstract: A patient positioning system for use with a radiation therapy system that monitors the location of fixed and movable components and pre-plans movement of the movable components so as to inhibit movement if a collision would be indicated. The positioning system can also coordinate movement of multiple movable components for reduced overall latency in registering a patient. The positioning system includes external measurement devices which measure the location and orientation of objects, including components of the radiation therapy system, in space and can also monitor for intrusion into the active area of the therapy system by personnel or foreign objects to improve operational safety of the radiation therapy system.
    Type: Application
    Filed: October 8, 2007
    Publication date: August 7, 2008
    Inventors: Chieh C. Cheng, David A. Lesyna, Michael F. Moyers
  • Path planning and collision avoidance for movement of instruments in a radiation therapy environment
    Patent number: 7280633
    Abstract: A patient positioning system for use with a radiation therapy system that monitors the location of fixed and movable components and pre-plans movement of the movable components so as to inhibit movement if a collision would be indicated. The positioning system can also coordinate movement of multiple movable components for reduced overall latency in registering a patient. The positioning system includes external measurement devices which measure the location and orientation of objects, including components of the radiation therapy system, in space and can also monitor for intrusion into the active area of the therapy system by personnel or foreign objects to improve operational safety of the radiation therapy system.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: October 9, 2007
    Assignee: Loma Linda University Medical Center
    Inventors: Chieh C. Cheng, David A. Lesyna, Michael F. Moyers
  • Patient alignment system with external measurement and object coordination for radiation therapy system
    Patent number: 7199382
    Abstract: A patient alignment system for a radiation therapy system. The alignment system includes multiple external measurement devices which obtain position measurements of components of the radiation therapy system which are movable and/or are subject to flex or other positional variations. The alignment system employs the external measurements to provide corrective positioning feedback to more precisely register the patient and align them with a radiation beam. The alignment system can be provided as an integral part of a radiation therapy system or can be added as an upgrade to existing radiation therapy systems.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: April 3, 2007
    Assignee: Loma Linda University Medical Center
    Inventors: Nickolas S. Rigney, Daniel C. Anderson, David A. Lesyna, Daniel W. Miller, Michael F. Moyers, Chieh C. Cheng, Michael A. Baumann