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| Content Provider | IET Digital Library |
|---|---|
| Author | Ganji, Bahram Azizollah Kheiry, Sanaz Soleimani, Samaneh |
| Abstract | This study presents an implantable passive wireless blood pressure sensor using an inductive coupling wireless sensing technique that is designed for long-term monitoring of blood pressure in hypertension patients. This sensor includes a gold tapered square spiral inductor and a circular capacitor with a polyimide diaphragm. The purpose of this study is to minimise the dimension of the sensor due to the limitation of space around the vessel; therefore, a microelectromechanical systems (MEMS) inductor and a capacitor with small dimension and high sensitivity are used. In this structure, the diaphragm is deflected by applied pressure which capacitance and then resonance frequency are changed. These changes are sensed remotely with inductive coupling, which eliminates the need of wires connection for monitoring. In this method, a blood pressure signal can be obtained by measuring the impedance phase dip from the external coil. The distance between two coils is 8 mm. The sensor is designed to provide a resonance frequency range of 282–381 MHz for a pressure range of 0–250 mmHg. Simulation has been done using COMSOL Multiphysics and ADS software. The dimension of the sensor is 2.2 mm × 2.2 mm and the sensitivity of the sensor is 1550. This sensor has a small size and high sensitivity rather than previous works. |
| Starting Page | 39 |
| Ending Page | 44 |
| Page Count | 6 |
| ISSN | 1751858X |
| Volume Number | 13 |
| e-ISSN | 17518598 |
| Issue Number | Issue 1, Jan (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-cds/13/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-cds.2018.0013 |
| Journal | IET Circuits, Devices & Systems |
| Publisher Date | 2018-05-15 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | ADS Software Biomedical Measurement And Imaging Blood Pressure Measurement Blood Pressure Signal Capacitor Circular Capacitor COMSOL Multiphysics Design And Modelling of MEMS And NEMS Device Distance 8 Mm Frequency 282 MHz to 381 MHz Gold Tapered Square Spiral Inductor High Sensitive Less-invasive Wireless Blood Pressure Sensor Design Hypertension Patients Impedance Phase Dip Measurement Implantable Passive Wireless Capacitive Blood Pressure Sensor Inductive Coupling Wireless Sensing Technique Long-term Monitoring Blood Pressure MEMS And NEMS Device Technology MEMS Inductor MEMS Technology Microelectromechanical System Inductor Microsensor Microsensors And Nanosensors Orthotics Polyimide Chamber Polyimide Pressure-sensitive Diaphragm Polymer Pressure And Vacuum Measurement Pressure Deflects Diaphragm Pressure Sonsor Prosthetics Resonance Frequency Change Silicone Elastic Cuff Silicone Oil Silicones Small Size Less-invasive Wireless Blood Pressure Sensor Design Wireless Sensor Network |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Electrical and Electronic Engineering |
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