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Related Experiment Video

Updated: Mar 27, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

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Wireless, Ultra-Low-Power Implantable Sensor for Chronic Bladder Pressure Monitoring.

Steve J A Majerus¹, Steven L Garverick¹, Michael A Suster¹

¹Case Western Reserve University.

ACM Journal on Emerging Technologies in Computing Systems

|January 19, 2016

Summary

This summary is machine-generated.

A new wireless bladder pressure sensor, the WIMM system, offers real-time feedback for improved bladder control and diagnosis. Its low power design enables extended operation, enhancing neuromodulation therapies.

Keywords:

ASIC Design FSK transmitter Measurement ULP bladder pressure implant low-power neuromodulation offset cancellation urodynamics wireless recharge wireless sensor

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Last Updated: Mar 27, 2026

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Area of Science:

Biomedical Engineering
Urology
Implantable Sensors

Background:

Chronic bladder pressure monitoring is crucial for urodynamics and bladder control.
Existing methods lack real-time feedback capabilities for advanced applications like neuromodulation.
There is a need for a miniaturized, low-power wireless sensor for intracavity pressure measurements.

Purpose of the Study:

To develop and evaluate a Wireless Implantable/Intracavity Micromanometer (WIMM) system.
To provide real-time bladder pressure feedback for enhanced neuromodulation and urodynamic diagnosis.
To achieve a miniaturized, low-power wireless sensor for chronic implantation.

Main Methods:

The WIMM system integrates custom circuitry, a MEMS transducer, and a wireless antenna.
Aggressive power management techniques were employed for low current draw (9 μA).
Automatic pressure offset cancellation and a custom telemetry protocol were implemented.

Main Results:

The WIMM system successfully transmitted pressure telemetry wirelessly at 10 Hz.
Low power consumption allows for over 24 hours of operation on a single charge.
Wireless recharging capability was demonstrated within a 4-hour session.

Conclusions:

The WIMM system addresses the need for a chronic wireless bladder pressure sensor.
Its real-time feedback and low-power design are beneficial for bladder neuromodulation and urodynamics.
The developed system shows promise for improving bladder management and control therapies.