Biomedical Engineering Reference
In-Depth Information
be used locally or be relayed further—in which case the system would incorporate an on-
board data communication capability—to transmit raw or significant data. Advanced sen-
sor systems would follow a node-based approach for a global-level monitoring. They shall
include low-power wireless communication protocols within multiple nodes, distributed
computing algorithms and protocols at these nodes.
The MEMS devices, which interact with the skin, would depend upon the application
and will generally be microfluidics-based (for fluid transfer systems), or IC-based (for
charge transfer systems). Fluid transfer systems can be expected to be more complex and
will have multiple component levels. Figure 10.6 depicts a schematic representation of a
typical system.
Pressurized
reservoir array
Addressable
valves
Fluidic plate
Electronics and
communications
Micro valves
Micro liquid
chromatograph and
sensors
Wick/needle
interface
Ring
electrode
Microwick/needle
FIGURE 10.6
Elements of the prototypical MEMS system.
Lipid seal
