Enhanced pulse oximeter



Pulse oximeters are non-invasive medical instruments largely used in hospitals to measure tissue oxygenation and heart rate, both in operating rooms and at bedside. Their portability and the fact that they do not require particular training to operate, makes them the perfect tool for patient assessment and monitoring.


Streamline Automation has developed and patented a novel technique to maximize the information extracted from the photoplethysmogram. The Intelligent Data Extraction Algorithm (IDEA™), used in conjunction with existing pulse oximeter hardware, allows for non-invasive, continuous, and real-time measure of cardiac output and blood pressure. This represents a breakthrough in cardiac monitoring, where cardiac output is usually measured invasively, with inherent risks for the patient.


What is IDEA™, and who can benefit from it?


IDEA™ is a software package which uses probabilistic inference and machine learning techniques, coupled with advanced physiological and photo absorption models, to extract hidden hemodynamic parameters from the commonly available photoplethysmogram. IDEA™ has the demonstrated ability to monitor cardiac output non-invasively while detecting and removing motion artifacts. Other parameters such as heart rate, arterial blood pressure, and blood oxygenation are also available.


IDEA™ solves several important clinical needs that cannot be met with current technology. During anesthesia, surgery, and recovery, our enhanced pulse oximeter can monitor a patient warning against "silent hemorrhages" that could otherwise be unobserved on standard equipment. In the neonatal intensive care units, it can monitor babies born with congenital heart defects, or poor blood flow. At home, it can be used to monitor patients with chronic heart conditions (the top killer in the US). In the battlefield and disaster areas, our device can dramatically improve the speed and accuracy of triage to save the lives of injured soldiers and victims. Many other medical practices necessitate the use of non-invasive and continuous stroke volume monitoring, to expand the amount of vital information available at the patient care area, and eliminate the need for risky invasive procedures.


How has IDEA™ been tested?


IDEA™ has been tested on simulated signals and real patients waveforms from the MIMIC database in phase of development. Testing has then been performed at the Huntsville Heart center on patients undergoing cardiac catheterization. A presentation of the technology and results can be viewed and downloaded here.


IDEA™ has also been the recipient of the first prize in the Medical Category at the 2010 Create the Future contest.


Where can I get IDEA™?


IDEA™ is sold as a software library that can be used to enhance existing hardware. For more information and for a quote, please contact This email address is being protected from spambots. You need JavaScript enabled to view it..