US-based CalmWave has raised $4.4m in a follow-on funding round to expedite its expansion into the market amid growing demand from hospital systems.

The funding was contributed by existing investors, including Bonfire Ventures, Third Prime, Catalyst by Wellstar and Silver Circle.

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Alarm fatigue in ICUs is a critical issue where the majority of alarms do not require immediate clinical action.

CalmWave’s solution, the Calm ICU, creates a signal-led critical care environment that filters out non-actionable noise, allowing clinical urgency to stand out.

This system is pivotal in aligning hospital teams, technology, and time, thereby enhancing decision-making at the bedside and improving patient care.

CalmWave founder and CEO Ophir Ronen said: “We’ve done what many believed impossible and shown significant reductions in non-actionable alarms, a key driver of ICU alarm fatigue – and this pre-emptive and oversubscribed round is recognition of this achievement.

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“Our pilot with Wellstar demonstrated that our platform is effective at fusing disparate healthcare data silos and using Transparent AI to enable clinicians to reduce non actionable ICU alarms. The demand is clear, and we are scaling our game-changing hospital operations platform to a rapidly growing list of healthcare systems.”

The CalmWave Operations Platform employs Transparent AI to provide visibility and comprehension of the data and reasoning behind its recommendations.

This empowers care organisations to make data-driven decisions. The platform leverages a hospital’s historical and real-time patient data to offer objective suggestions for lessening non-actionable alarms, which, when implemented, can improve the clinical work environment.

Built on an AI-first architecture, CalmWave’s platform integrates AI into every aspect of its operations, from alarm reduction to clinical workflow optimisation.

Third Prime partner Keith Hamlin said: “We’re proud to support CalmWave as they scale a future where the ICU is not just smarter but Calm.”