Augmented Reality Display for Heart-Lung Machine Monitoring
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Solution Overview
Problem
Current heart-lung machines during cardiopulmonary bypass surgeries require constant monitoring of critical parameters, which can be cumbersome and limit the mobility and response time of perfusionists, as they need to focus on fixed screens for vital metrics.
Innovation Solution
A system that uses augmented reality to overlay critical sensor data onto a head-worn display, allowing perfusionists to view vital metrics and sensor readings as an overlay on their field of view, enhancing mobility and response time by providing constant awareness of key parameters without needing to focus on a fixed screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If perfusionists monitor critical parameters on fixed screens, then measurement precision is improved, but mobility and response time deteriorate
Solution Approach 1:
The patent replaces the mechanical system of fixed screen monitoring with an optical system (augmented reality head-mounted display) that projects sensor data directly into the perfusionist's field of view. This substitution eliminates the need for the perfusionist to physically position themselves at fixed monitoring stations, thereby maintaining measurement precision while dramatically improving mobility and response time to critical incidents.
2Loss of information
If perfusionists focus on fixed screens for vital metrics, then information completeness is improved, but response time to critical incidents worsens
Solution Approach 1:
The system performs preliminary action by pre-integrating multiple sensor data streams (oxygen saturation, blood pressure, flow rate) into a unified augmented reality display that is continuously available in the perfusionist's field of view. This preliminary preparation of information ensures complete vital metrics visibility without requiring the perfusionist to switch between multiple fixed screens, thereby reducing response time to critical incidents while maintaining information completeness.
3Loss of information
If multiple sensors are integrated to provide comprehensive monitoring, then information completeness is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing the augmented reality head-mounted display as a multi-functional device that can simultaneously present multiple types of sensor data (alphanumeric values, graphical representations, video feeds) through a single interface. This universal display system integrates comprehensive monitoring capabilities while avoiding the complexity of multiple separate monitoring systems, as one device performs all functions of data collection, processing, and presentation.
Data Source
AI summary
This document describes devices used during surgical procedures for the treatment of heart conditions. For example, this document describes technology to monitor the operations of a heart-lung machine and then shows associated read outs on a head-worn display in order to provide an augmented-reality presentation. For example, various sensors on and around a heart-lung machine, patient, and/or extracorporeal circuit can monitor the operations of the procedure using the heart-lung machine.