Documents / Report
This Defense Intelligence Agency reference document, dated 31 March 2010 (DIA-08-1003-020), was one of a series of advanced technology reports produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) program. It surveys biosensors and BioMEMS, covering brain-implanted neuroelectrodes, drug-delivery pumps, implantable glucose sensors, brain-machine interfaces, retinal prostheses, microfluidic lab chips, NASA cell culture systems, and microcantilever sensors. It concludes that the field is expanding rapidly toward nanomechanical systems.
UNCLASSIFIED//F'ilA. WFFililo\le 1!1!11! 9HL I Figure 23. A MEMS Microelectrode Array Implanted Into the Cortex of a Rat Brain. The lead wires from the device can be seen. (NeuroNexus Inc.) RETINAL DEVICES USING BIOMEMS An example of MEMS being used in conjunction with wireless implantable systems is the retinal implant. These devices attempt to augment vision where it has failed due to problems such as macular degeneration and retinitis pigmentosa. The basic idea is to use a miniature video camera and connect it to an electrode array in the eye such that the scene in view is converted to electrical impulses used to stimulate the sensation of sight by direct stimulation of the receptors in the eye. Figure 24 shows this idea. Figure 25 shows a microelectrode array that has been manufactured on a polymer substrate such that it is exceedingly thin and flexible. The flexibility is needed so that it conforms to the curved shape of the back of the eye. The electrode pads seen are attached by a flexible cable. 27 UNCLASSIFIED/ ,CFQA: QFFIGIOP 1!55 ADIi X
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 45 pages are in the text index: search them above, or from the library's search.