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Wireless intracranial pressure monitoring through scalp at microwave frequencies

Wireless intracranial pressure monitoring through scalp at microwave frequencies

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The feasibility of acquiring intracranial pressure information through the scalp at 2.4 GHz ISM band is demonstrated. A device, including a piezoresistive sensor, an oscillator and a chip antenna, irradiates a pressure dependent microwave signal. With the device covered by a scalp phantom, the detected signal is only about 8–13 dB below the case without the phantom.

References

    1. 1)
      • DeHennis, A., Wise, K.D.: `A double-sided single-chip wireless pressure sensor', Dig. IEEE Conf. on MicroElectroMechanical Systems, January 2002, p. 252–255
    2. 2)
      • Simons, R.N., Hall, D.G., Miranda, F.A.: `RF telemetry system for an implantable bio-MEMS sensor', Dig. 2004 IEEE Int. Microwave Symp., June 2004, Fort Worth, TX, USA, 3, p. 1433–1436
    3. 3)
      • Kawoos, U., Mugalodi, G.K., Tofighi, M.R., Neff, S., Rosen, A.: `A permanently implantable intracranial pressure monitor', Proc. IEEE 31st Annual Northeast Bioengineering Conf., April 2005, p. 17–19
    4. 4)
    5. 5)
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