Non-invasive measurement method for partial oxygen pressure via the surface of the skin & indirect measurement of the systemic arterial oxygen pressure was originally developed for blood gas analysis monitoring in the intensive care / neonatology field.
What is optical TcpO2 measurement?
Luminescence lifetime measurement is the emission of light by a substance as a reaction after an activation.
Fluorescence lifetime measurement is a form of photoluminescence as a result of singlet–singlet electronic relaxation (typical lifetime: nanoseconds).
Medicap optical probe consists of: fluorescent matrix (layer), LED lamp & heating unit. Skin/tissue is heated – so the oxygen diffuses into the matrix = O2 marker molecule sensitive.
Medicap‘s optical fluorescence based TcpO2 measurement
In the matrix the „green“ LED light is absorbed from the oxygen molecules and „red“ light is emitted / given back. Dependent on the oxygen concentration, fluorescence lifetime is measured in the matrix a.k.a. quenching.
Areas of application
Wound healing process
Chronic venous insufficiency and ischemia
Confirmation of diagnosis and blood gas monitoring
Measurement for individual amputation level
Fitting of prostheses
Diabetes & peripheral artery occlusive disease PAOD
Diagnostics in vascular ischaemia of the hypogastric
Circulation and/or before or after aortobifemoral bypass surgery