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ECG Cardiac Monitor Saves Lives and Cuts Costs

Thu, 07/07/2011 - 5:01am
Nordic-ECGmonitorUltra low power RF specialist Nordic Semiconductor announces that British medical services startup, Isansys Lifecare Limited, has announced the world's first commercially-available, clinical-grade, wireless cardiac monitor to support low cost continuous ECG heart monitoring. This means cardiac patients can be monitored continuously and thus any problems detected when they are usually easier to treat, while avoiding life-threatening and costly emergency room-re-admissions.

By making the most costly elements of the Isansys LifeTouch HRV011 ECG wireless monitor recyclable, its application cost can fall (with repeated usage) to just a few tens of cents. In operation, the HRV011 resembles a lightweight bandage strip that adheres to a patient's body and analyses the ECG signal of every heartbeat in 4-5x more detail than that required for a wired ECG monitor. From this data, a proprietary algorithm running within an on-board ARM Cortex-based microcontroller is used to calculate key physiological parameters – including respiration rate and R-to-R peak intervals – to detect problems rapidly. Redundancy is also built-in because collected data is securely transmitted to a web-based HL7-compliant database.

The Nordic nRF24AP2's class-leading performance and use of the proven, ultra low power ANT wireless protocol help enable the LifeTouch HRV011 to achieve a battery operating life of up to 100 hours (four days) from a regular CR2032 coin cell battery under continuous usage conditions, while offering high interference immunity in even the most challenging (active Bluetooth and Wi-Fi) 2.4GHz RF operating environments.

"This product will mean that healthcare providers could save thousands of lives and slash millions of dollars from their over-stretched healthcare budgets," says Keith Errey, CEO at Isansys. "At present nearly one in three patients that are discharged from intensive care wards will suffer a relapse of some kind, often within a week or so of discharge. Our devices and services provide an early warning of adverse events, and thus allow earlier and generally less costly and traumatic interventions compared to an emergency re-admission into intensive care.”

Errey continues: "Until now there has been no low cost solution to this problem. And given that in the U.S. many major medical insurers from next year are saying that will start treating many re-admissions as a failure on the part of the hospital and so not be liable for any further emergency room costs, our solution – which is commercially available now – could not be more timely."

"It's an unfortunate reality that aging populations and an explosion in lifestyle-related health problems such as obesity and linked conditions such as type-2 diabetes, are placing crippling financial burdens on government healthcare budgets, healthcare providers, and insurers," comments Geir Langeland, Nordic Semiconductor's Director of Sales & Marketing. "This situation is only going to worsen and is in desperate need of innovative technological solutions such as this low cost, wireless cardiac monitor from Isansys." 
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