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Ultra-low-power semiconductors for wireless vital signs early warning systems

Ultra-low-power semiconductors for wireless vital signs early warning systems

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Most patients in hospital have measurements of their ‘vital signs’ taken and recorded only intermittently, thus deterioration can occur to a point of serious consequence before it is recognised. New technologies are being developed which allow increased surveillance of patients' status without the inconvenience of being physically attached to immobile monitoring systems, and thus allowing patients to move around their rooms and floor areas. The implementation of a small, low-cost, ultra-low-power and disposable vital signs monitor is described, made possible by the development of a semiconductor SoC – Sensium – which implements all of the required electronic functionality in a few square millimetres of silicon.

References

    1. 1)
      • National Confidential Enquiry into Patient Outcome and Death 2005. An acute problem. http://www.ncepod.org.uk/2005aap.htm.
    2. 2)
      • National Institute for Health and Clinical Excellence. 2007. Acutely ill patients in hospital; recognition of and response to acute illness in adults in hospital. http://www.nice.org.uk/Guidance/CG50/NiceGuidance/pdf.
    3. 3)
    4. 4)
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    6. 6)
      • Texas Instruments CC2540 Bluetooth Low Energy chip, Product Information obtained from www.ti.com.
    7. 7)
      • Nordic Semiconductor nRF24AP2 single chip RF transceiver plus ATN protocol stack, Product Specification obtained from www.nvlsi.no.
    8. 8)
      • Wong, A.C.W.: `A 1V micropower system on chip for vital sign monitoring in wireless body sensor networks', Dig. Tech. Pprs., IEEE Int. Solid-State Circuits Conf, 2008, Grenoble, France, p. 138–1398.
    9. 9)
    10. 10)
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2011.3019
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