| VISION RT LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120006336 | BLANK FOR A HEAD RESTRAINT - A blank for a head restraint is disclosed. The blank includes a frame and a sheet extending across the frame wherein a main aperture and a pair of auxiliary apertures are provided in the sheet. The arrangement of the apertures is such that when the sheet is deformed upon placement on a patient's head, the main aperture is such to leave a patient's face substantially free of the sheet and the auxiliary apertures are such to cause a retaining strut to be formed by portions of the sheet between the main aperture and the auxiliary apertures. | 01-12-2012 |
| 20110178783 | Image processing system for use with a patient positioning device - Three camera rigs are connected by wiring to a computer. The computer is also connected to a treatment apparatus. A mechanical couch is provided as part of the treatment apparatus such that under the control of the computer the relative positions of the mechanical couch and the treatment apparatus may be varied. The camera rigs obtain video images of a patient lying on the mechanical couch the computer processes these images to generate a three-dimensional model of the surface of the patient which is utilized to position the patient relative to the treatment apparatus. | 07-21-2011 |
| 20090187112 | Patient monitor - A patient monitor is disclosed for detecting patient movement or abnormal breathing. Images of a patient are obtained by a stereoscopic camera. These images are then processed by a 3D position determination module which determines measurements indicative of positions of at least part of a patient. The obtained measurements are then passed to a model generation module which generates a breathing model of the variation in position of the at least part of a patient during a breathing cycle. Subsequently abnormal breathing or patient movement can be detected by processing further images obtained by the stereoscopic camera to determine more measurements indicative of positions of at least part of a patient. These measurements are then compared with a stored breathing model by a comparison module. If abnormal breathing or patient movement is detected the comparison module sends a signal to a treatment apparatus to interrupt treatment until normal breathing resumes or alternatively to a mechanical couch to reposition the patient to account for the detected movement. | 07-23-2009 |
| 20090052760 | Image processing system for use with a patient positioning device - Three camera rigs ( | 02-26-2009 |
