Low delay rate adaptive pacemaker using FPGA embedded piezoelectric sensor.

Area of Science:

• Biomedical Engineering
• Medical Devices
• Implantable Electronic Systems

Background:

• Traditional pacemakers lack adaptability to patient activity levels.
• Delays in sensing and pacing can impact pacemaker efficacy.
• Rate-adaptive pacemakers require efficient sensor integration for physiological response.

Purpose of the Study:

• To present a hardware implementation of a low-delay, power-efficient rate-adaptive dual-chamber pacemaker (RDPM).
• To utilize a piezoelectric sensor for sensing patient physical activity.
• To reduce the delay between sensing patient activity and subsequent pacing.

Main Methods:

• Hardware implementation of a rate-adaptive dual-chamber pacemaker (RDPM).
• Integration of a piezoelectric sensor to detect physical activity via muscle pressure.
• Development of circuitry to process sensor signals and control pacing rate.
• Performance analysis focusing on sensing-to-pacing delay and device utility.

Main Results:

• Significant reduction in the delay between sensing and pacing.
• Reduced memory requirements and fewer components on the chip.
• Demonstrated lower power consumption compared to existing designs.
• Effective adaptation of pacing rate to patient's physical activity and rest states.

Conclusions:

• The proposed RDPM design offers improved performance with reduced delay and power usage.
• Piezoelectric sensor integration enables effective rate adaptation based on physical activity.
• The design is suitable for efficient and responsive cardiac pacing.
• This advancement contributes to more sophisticated and patient-centric pacemaker technology.