PressureDot^® Capsule: A Wireless Ingestible Device for Continuous Intra-Abdominal Pressure Monitoring-Design,...

Area of Science:

• Medical Devices
• Gastroenterology
• Critical Care Medicine

Background:

• Continuous intra-abdominal pressure (IAP) monitoring is vital for managing intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS).
• Current intravesical pressure (IVP) monitoring methods are invasive, intermittent, and carry infection risks.
• There is a need for advanced, continuous, and non-invasive IAP monitoring solutions.

Purpose of the Study:

• To introduce and evaluate the PressureDot® Capsule, an ingestible wireless device for continuous, non-invasive IAP monitoring.
• To assess the accuracy and feasibility of the PressureDot® Capsule through benchtop and in vivo studies.
• To compare the advantages of the PressureDot® Capsule against conventional IAP monitoring techniques.

Main Methods:

• Benchtop testing using a reference pressure meter to evaluate capsule accuracy.
• In vivo testing in a porcine model to assess capsule performance against true IAP.
• Correlation analysis (R²) to quantify measurement accuracy and feasibility.

Main Results:

• Benchtop tests showed high correlation with a reference pressure meter (R² = 0.97 and R² = 0.94).
• In vivo testing demonstrated strong correlations between capsule readings and true IAP (R² = 0.81 and R² = 0.94).
• The capsule proved accurate and feasible for continuous IAP monitoring.

Conclusions:

• The PressureDot® Capsule offers a promising continuous, non-invasive method for IAP monitoring.
• Advantages include reduced infection risk, labor efficiency, and suitability for outpatient settings.
• This technology has the potential to transform real-time IAP monitoring in various healthcare environments.