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In this work we proposed designs and demonstrated the fabrication of silicon microprobes for neural prosthesis. Silicon probes of various sizes, cross-sectional shapes and involving different probe encapsulation bio-compatible materials such as Polyimide were fabricated. Especially, isotropically etched (for Si) probes find significant application to reduce tissue trauma during implant. Our approach...
This paper presents a fully integrated inductively powered implantable circuits for blood flow measurement, which are embedded within vascular prosthetic grafts for early detection of graft degradation or failure. The ASIC interfaces with micro-fabricated pressure sensors and uses a 13.56MHz carrier frequency for power transfer and command/data communication. A backscatter-modulated passive telemetry...
This paper describes the design of a tri-axial microelectromechanical force sensor (FS) that can be mounted on the tip of the guidewire. Piezoresistive silicon nanowires (SiNW) are embedded into a cross cantilever design with a manoeuvrable stylus to allow the detection of force in all directions. The electrical resistance changes in the four SiNWs are used to decode an arbitrary force applied onto...
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