HOW IT WORKS
The ivWatch Model 400 works similar to a pulse oximeter in that it uses light to detect infiltration/extravasation events. There are 3 main components to our system, the ivWatch Patient Monitor that is mounted to the pole and displays the state of a patient’s IV, the multi-use sensor cable that includes a non-invasive sensor that is snapped into a sterile, disposable receptacle that secures the sensor to the patient’s skin.
ivWatch Model 400 Overview
Once connected, signal data is processed by the patient monitor 5 times per second and the device creates a baseline for each monitoring run. Once the baseline is established, light is emitted from the monitor into the patient tissue and reflected signals are sent back to the monitor while the algorithm looks for changes in the light signals. In normal tissue, reflected light is more linear, but reflected light from infiltrated tissue is more scattered.
As light photons begin to scatter, the light signal begins to weaken as the tissue begins to infiltrate. Once the signal reaches a threshold that has been defined based on years of clinical and real-world research and data, a YELLOW CHECK IV notification is issued. If the signal continues to drop, the patient monitor will issue a RED CHECK IV notification indicating a probable infiltration.
Human Eye vs ivWatch
ivWatch allows clinicians to leverage technology to help identify infiltrations as early as possible. Many hospitals have implemented programs such as hourly checks, visual assessments, and other internal programs. Unfortunately, infiltrations and extravasations still occur.
ivWatch becomes the clinician’s partner, continuously monitoring for infiltrations. When the ivWatch system detects an infiltration it alerts the clinician to inspect the IV site or supports their own evaluation that an infiltration has occurred.
The use of technology and clinician assessments together can improve patient safety and help minimize patient harm from infiltration and extravasation events.