12 DISC
Development of Feedback loop extravasation detection and alarm system
To design and develop an automated closed feedback loop Intravenous Fluid (IV) Infiltration and Extravasation Detection and Alarm system and integration in the feedback loop of infusion pump system
Approaches to managing extravasation till date primarily focus on measures to aid in preventing tissue damage, reversal agents specific to the type of extravasation, and surgical intervention if necessary. Relative effectiveness of these strategies across the variety of extravasation injuries that present in clinical practice remains contentious. There is a lack of a primary prevention approach in real-life case scenario towards extravasation injuries.
An innovative solution for primary prevention and limitation of extravasation at the point of care is needed. Currently there is no automated IV infiltration and extravasation monitoring system capable of continuous monitoring of IV fluid infiltration and subsequent extravasation of the infused IV fluids in the subcutaneous extravascular compartment. This could be in terms of an objective method to quantify infiltration and extravasation through progressive changes in the local tissue dimensions, interstitial compartment pressures and physical characteristics/properties of the skin around the IV cannula insertion site using sensors applied locally distal to the IV cannula insertion site. These sensors can be of materials which can adapt to the local site, potentially integrated with the IV fixation mechanism and operate on optical or piezoelectric principles with a sensitivity to detect minor changes induced by infiltration and extravasation.
The challenge lies in designing low-cost automated system which
a) Provides an early objective assessment and warning system for IV infiltration and extravasation across various calibres of IV cannulas from 26G to 14G size, AND
b) is biocompatible with the skin across all age groups especially neonates, children and geriatric populations, AND
c) is capable of handling subjective variability, motion artefacts, undesirable signal drifts over time AND
d) integrates and functions well with the existing IV site dressing/securing methods, AND
e) functions as a feedback loop alarm system wherein acquired signal(s) from the monitoring system are integrated into the IV infusion pump system in order to implement a close-loop alarm and control of the IV infusion pump system, AND
f) ease to operate with high fidelity which maximizes monitoring efficacy and objectivity with minimal need for human interface
i. To be integrated with IV infusion pump systems of any make for better patient safety in hospital settings across entire age spectrum
ii. Open platform design compatible with existing IV securing techniques
iii. Will prevent morbidities associated with the extravasation incidents while saving on precious nursing care times by early detection of even minor swellings at the catheterization independent of individual caregiver subjectivity
iv. Should be able to account for motion artefacts imposed by movement of subjects
v. Should lead to reduction of extravasation events