A Minimally Invasive Implantable Wireless Pressure Sensor for Continuous IOP Monitoring
| العنوان: | A Minimally Invasive Implantable Wireless Pressure Sensor for Continuous IOP Monitoring |
|---|---|
| المؤلفون: | Teimour Maleki, Girish Chitnis, Babak Ziaie, Brian C Samuels, Louis B. Cantor |
| المصدر: | IEEE Transactions on Biomedical Engineering. 60:250-256 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Pars plana, Intraocular pressure, Materials science, genetic structures, Remote patient monitoring, Capacitive sensing, Biomedical Engineering, Prosthesis Design, Tonometry, Ocular, medicine, Animals, Minimally Invasive Surgical Procedures, Intraocular Pressure, Hypodermic needle, Transponder, Histocytochemistry, Prostheses and Implants, Pressure sensor, eye diseases, Sclera, medicine.anatomical_structure, Microtechnology, Rabbits, sense organs, Wireless Technology, Biomedical engineering |
| الوصف: | This paper presents a minimally invasive implantable pressure sensing transponder for continuous wireless monitoring of intraocular pressure (IOP). The transponder is designed to make the implantation surgery simple while still measuring the true IOP through direct hydraulic contact with the intraocular space. Furthermore, when IOP monitoring is complete, the design allows physicians to easily retrieve the transponder. The device consists of three main components: 1) a hypodermic needle (30 gauge) that penetrates the sclera through pars plana and establishes direct access to the vitreous space of the eye; 2) a micromachined capacitive pressure sensor connected to the needle back-end; and 3) a flexible polyimide coil connected to the capacitor forming a parallel LC circuit whose resonant frequency is a function of IOP. Most parts of the sensor sit externally on the sclera and only the needle penetrates inside the vitreous space. In vitro tests show a sensitivity of 15 kHz/mmHg with approximately 1-mmHg resolution. One month in vivo implants in rabbits confirm biocompatibility and functionality of the device. |
| تدمد: | 1558-2531 0018-9294 |
| DOI: | 10.1109/tbme.2012.2205248 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bdc4aa9c9f1f9549f7c3b752728afbd https://doi.org/10.1109/tbme.2012.2205248 |
| رقم الانضمام: | edsair.doi.dedup.....9bdc4aa9c9f1f9549f7c3b752728afbd |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15582531 00189294 |
|---|---|
| DOI: | 10.1109/tbme.2012.2205248 |