An Eye Oximeter for Combat Casualty Care
Abstract
Blood pressure and pulse are particularly inaccurate when used to identity early blood loss in trauma victims. This research supports the continued development of a system for noninvasively monitoring blood loss. We have developed a breadboard Eye Oximeter (EOX) which shines low power lasers into a subject's eye and scans the beams across the arteries and veins of the retina. The back reflected light is collected and from these signals we calculate the oxygen saturation of the blood within the retinal vessels. Prior to initiating this contract we completed swine studies that demonstrated a strong correlation between retinal venous oxygen saturation and early blood loss. During the past year, we have completed construction of a prototype Eye Oximeter, performed model eye experiments with this prototype which verity in vitro calibration, performed pilot human experiments which demonstrate significant improvements in our prototype, and begun animal testing of the device. We have also completed the development and design of a video oximeter (EOX-2) as anticipated in our statement of work. We have completed the construction of the EOX-2 breadboard and testing of the device has begun. In this Annual Report we document the studies, results and analysis which we performed under contract.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1999
- Accession Number
- ADB245021
Entities
People
- Kurt Denninghoff
Organizations
- University of Alabama