Knowledge Base & Support

Master 100 FAQ Repository &
Clinical Operation Guidance

Everything you need to know regarding device mechanics, AHA compliance, battery maintenance, and institutional deployment.

1

Device Mechanics & Force Sensor Calibration

How does CPR PRAYAS™ measure compression depth without external reference frames?
CPR PRAYAS™ utilizes a proprietary multi-sensor fusion algorithm combining piezo-resistive force sensor arrays with 6-DOF inertial measurement units (IMUs) to accurately isolate sternal displacement from underlying surface movement.
Can CPR PRAYAS™ be used on a soft hospital mattress?
Yes. The embedded 32-bit ARM Cortex-M4 microcontroller executes real-time Kalman signal filtering at 500 Hz to compensate for mattress compression artifact, ensuring true sternal measurement.
How do rescuers switch between Adult and Infant modes?
A single tactile toggle switch recalibrates physical sensor sensitivity and firmware force thresholds instantly (5.0–6.0 cm for adults, 4.0 cm for infants).
What is the calibrated pressure operating range of the force sensor matrix?
The force array is calibrated across a pneumatic gradient from 10 kg to 60 kg with an accuracy resolution of ± 1 mm displacement.
2

Clinical Guidelines & AHA Compliance

Is CPR PRAYAS™ compliant with AHA 2025 resuscitation guidelines?
Absolutely. The internal audio metronome guides compressions strictly at 110 BPM and monitors depth within the mandated 5.0–6.0 cm range for adults and 4.0 cm for infants.
Does CPR PRAYAS™ replace an AED (Automated External Defibrillator)?
No. CPR PRAYAS™ guides manual chest compressions to maintain vital cardiac refill and cerebral blood flow, working synergistically alongside AED defibrillators.
How does the device detect incomplete chest recoil during decompression?
If residual pressure exceeding 2.5 kg is detected at peak release, the force sensors trigger an immediate acoustic prompt: "Release Chest Fully" to prevent physical leaning.
3

Institutional Procurement & Warranty Support

What warranty coverage is provided for institutional fleets?
CPR PRAYAS™ One includes a 3-Year Limited Commercial Warranty, while CPR PRAYAS™ Pro includes a 5-Year Enterprise Clinical Warranty with rapid cross-exchange support.
Are volume discounts available for large school districts or hotel chains?
Yes. We offer tiered enterprise pricing and customized RFP procurement packages for multi-facility fleet deployments.
4

Mobile App & Cloud Telemetry Analytics

How does the CPR PRAYAS™ Connect mobile app communicate with hardware devices?
Via Bluetooth Low Energy (BLE 5.2) featuring zero-pairing instant emergency connection protocols.
Can CPR PRAYAS™ Cloud sync telemetry with hospital Electronic Health Records (EHR)?
Yes. Cloud telemetry APIs support HL7 and FHIR interoperability standards for automatic Code Blue incident logging.