16 March 2001 Directions for rf-controlled intelligent microvalve
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Proceedings Volume 4236, Smart Electronics and MEMS II; (2001); doi: 10.1117/12.418777
Event: Smart Materials and MEMS, 2000, Melbourne, Australia
Abstract
In this paper, we consider the novel concept of a Radio Frequency (RF) controllable microvalve for different medical applications. Wireless communication via a Surface Acoustic Wave Identification-mark (SAW ID-tag) is used to control, drive and locate the microvalve inside the human body. The energy required for these functions is provided by RF pulses, which are transmitted to the valve and back by a reader/transmitter system outside of the body. These RF bursts are converted into Surface Acoustic Waves (SAWs), which propagate along the piezoelectric actuator material of the microvalve. These waves cause deflections, which are employed to open and close the microvalve. We identified five important areas of application of the microvalve in biomedicine: 1) fertility control; 2) artificial venous valves; 3) flow cytometry; 4) drug delivery and 5) DNA mapping.
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Stefan Enderling, Vijay K. Varadan, Derek Abbott, "Directions for rf-controlled intelligent microvalve", Proc. SPIE 4236, Smart Electronics and MEMS II, (16 March 2001); doi: 10.1117/12.418777; http://dx.doi.org/10.1117/12.418777
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KEYWORDS
Acoustics

Actuators

Flow cytometry

Wave propagation

Wireless communications

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