Prexai

PROLONGED FIELD CARE READY

BEYOND OCCLUSION. PRECISION HEMOSTASIS.

The world’s first autonomous, closed-loop tourniquet — stopping catastrophic hemorrhage while preserving limb viability through real-time hemodynamic modulation.

ANALOG CONTROL IN A HIGH-STAKES ENVIRONMENT

Traditional tourniquets are blind tools in a digital world. They stop the
bleed by fully occluding blood flow, but that life-saving action starts a
countdown toward tissue ischemia, nerve damage, and limb loss.

In delayed evacuation or prolonged field care scenarios, complete occlusion can become a second injury.

DYNAMIC HEMODYNAMIC MODULATION

The Smart Tourniquet acts as a physiological valve. Using continuous non-invasive blood pressure sensing and pulse decomposition analysis, it continuously adjusts pressure to remain in the optimal Goldilocks Zone: high enough to stop hemorrhage, but low enough to preserve minimal perfusion and maintain limb viability.

AUTONOMOUS CONTROL AT THE EDGE OF CARE

A new paradigm for battlefield medicine, austere trauma care, and advanced emergency response.

AUTONOMOUS CLOSED- LOOP CONTROL

Powered by ESP32-S3-based embedded intelligence, the system interprets sensor input in real time and adjusts cuff pressure dynamically without requiring constant operator intervention.

CONTINUOUS HEMODYNAMIC SENSING

Integrated cNIBP sensing continuously measures pressure behavior and vascular response to ensure the system remains within therapeutic control thresholds.

PULSE DECOMPOSITION ANALYSIS

Advanced waveform interpretation allows the device to detect physiologic changes and adjust compression with precision.

LIMB VIABILITY PRESERVATION

Designed to stop life-threatening blood loss while enabling limited perfusion, extending survivability in prolonged care settings.

PROLONGED FIELD CARE

Built for environments where evacuation is delayed and conventional tourniquet assumptions break down under extended timelines.

NEXT-GEN HEMORRHAGE MANAGEMENT

A new paradigm for battlefield medicine, austere trauma care, and advanced emergency response requiring intelligent tools.

A SMARTER RESPONSE TO HEMORRHAGE

An elegant technical workflow processing physiological data into life-saving action in milliseconds.
01

DETECT

The device senses pulse wave and hemodynamic state in real time through advanced cNIBP sensors.

02

ANALYZE

Embedded intelligence interprets waveform data and evaluates against therapeutic pressure thresholds.

03

ADJUST

The cuff autonomously modulates pressure to stop bleeding while preserving minimal safe perfusion levels.

04

SUSTAIN

The system maintains a controlled therapeutic state for extended durations in prolonged care scenarios.

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