System and process for monitoring a position stability

US11172848B2 · kind B2 · utility

Assignee

• DRÄGERWERK AG & CO. KGAA · DE

Inventors

• Frank FRANZ · Lübeck, DE
• Stefan Schlichting · Lübeck, DE
• Jasper DIESEL · Lübeck, DE

Key dates

• Filing date: Sep 8, 2020
• Grant date: Nov 16, 2021
• Expiry date: Sep 8, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/746
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system (100) monitors a position stability of a person (105) located on a patient positioning device (104) within a medical setting monitored area (108) and includes a sensor unit (110) with optical sensors (112) real time outputting a sensor signal (114) sensor data indicating a sequence of three-dimensional views of the monitored area over a monitoring time. A processor unit (120) receives the sensor signal and determines, based on indicated three-dimensional views, a person's center of weight (121), a geometric reference value (123), and a geometric distance (D) between the center of weight and the geometric reference value and automatedly monitors the determined geometric distance in real time over a monitoring time and calculates a current position stability (127) as a function of the currently determined geometric distance and geometric distances determined within a past analysis time interval and outputs a position stability signal (129).