1. The LICOX System® Brain Tissue Oxygen Monitoring System
Jeffrey McCarthy
Biomedical Engineering
University of Rhode Island

2. The Licox Monitor
Measures the amount of Oxygen (O2) that is reaching the brain tissue
Partial Pressure of Brain Tissue Oxygenation (PbtO2)
Normal PbtO2: mmHg
Continuous, real time measurement
FDA approved in 2000

3. Why? Cerebral Hypoxia is associated with poor neurological outcome
Medical interventions can attempt to correct PbtO2
Causes of Cerebral Hypoxia
Stroke
Traumatic Brain Injury (TBI)
Vasospasm related to Subarachnoid Hemorrhage
The rationale being if you can correct PbtO2

4. Licox Probe Insertion and Placement
Bolt vs burr hole/tunneling technique for insertion
Placement of catheter healthy tissue vs pneumbra
Talk about lack of data on licox monitors improving patient outcome

6. How Does It Work? Probe covered by an O2 permeable membrane
O2 diffuses from brain through membrane
Inside probe is an electrolyte solution
O2 changes the charge of the solution
Charge is carried through cables to the external Licox computer and displayed

7. References:
“The LICOX System” Integra NeuroSciences 4 April
Northern Illawarra Hospitals Group: Clinical Practice Guideline
“The LICOX Sytstem: Product Presentation” Integra NeuroSciences 4 April

8. Questions ?