1. Anup Pillai Dhanya Premkumar Nair

2.  Long-Term Implantable Blood Pressure Monitoring System  Wireless Battery less In VIVO Blood Pressure Sensing Micro system

3.  The sensor specified earlier exhibits increased noise levels  The transmitter of the same dissipated 80% of the system power  Our objectives are: a) To find a solution that will exhibit less noise levels b) To find ways of having a more power efficient transmitter for the sensor

4. FebruaryMarchAprilMay Research project topic and preparatio n for report 1 Report 1 Objective 1 Presentatio n 2 Objective 2 Final Report

5.  To find a solution which exhibits less noise levels  We began by investigating the reason for the high noise levels in the current design

6.  Animal body vapor penetration into the device  Affect the functioning of the electrical connections within the sensor.

8.  The high impedance node can be highly sensitive to vapor penetration  Electrical connections between the sensor diaphragm and IC chip

9.  Protection for moisture penetration is required for the sensor diaphragm as well as the electrical connections between the sensor diaphragm and IC chip.

10.  A passivation layer, such as silicon dioxide (SiO 2 ) and silicon nitride (Si 3 N 4 ), can be deposited on the top of diaphragm.  An encapsulant material with strong moisture resistance can be used to protect the bond wires between the sensor and IC before applying silicone passivation layer.

11.  Improve packaging methods  This will enhance the reliability of the micro system for long-term blood pressure monitoring

12.  http://etd.ohiolink.edu/view.cgi/Cong%20Peng.pdf?case1228 412139 - “Wireless Battery less in Vivo Blood Pressure Sensing Microsystem for Small Laboratory Animal Real-Time Monitoring” Cong, Peng http://etd.ohiolink.edu/view.cgi/Cong%20Peng.pdf?case1228 412139  http://filer.case.edu/djy/publications/Sensor-04-BP.pdf - “Novel Long-Term Implantable Blood Pressure Monitoring System” Peng Cong, Darrin J. Young, and Wen H. Ko http://filer.case.edu/djy/publications/Sensor-04-BP.pdf  http://resources.metapress.com/pdf- preview.axd?code=t331767305362515&size=largest – “Fibre optic sensors in biomedical sciences” Otto S. Wolfbeis http://resources.metapress.com/pdf- preview.axd?code=t331767305362515&size=largest  “Biosensors for real-time in vivo measurements” -George S. Wilson, and Raeann Gifford