Patient monitor

US11147478B2 · kind B2 · utility

Assignee

• VISION RT LIMITED · GB

Inventors

• Ivan Daniel Meir · London, GB
• Norman Smith · London, GB
• Anthony Christopher Kipkirui Yegon Ruto · Basingstoke, GB

Key dates

• Filing date: Nov 20, 2018
• Grant date: Oct 19, 2021
• Expiry date: Apr 25, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30096
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.