An Ocular Tack for Minimally Invasive Continuous Wireless Monitoring of Intraocular Pressure

Author

• Girish D. Chitnis, Birck Nanotechnology Center, Purdue UniversityFollow
• Teimour Maleki, Birck Nanotechnology Center, Purdue UniversityFollow
• B. Samuels, Birck Nanotechnology Center, Purdue University
• L. B. Cantor, Birck Nanotechnology Center, Purdue University
• Babak Ziaie, Birck Nanotechnology Center, Purdue UniversityFollow

Abstract

This paper presents a novel minimally invasive implantable pressure sensing transponder for continuous wireless monitoring of intraocular pressure (IOP). The transponder was designed to make the implantation and retrieval surgery simple while still measuring the true IOP through direct hydraulic contact with the intra-ocular space. Most parts of the sensor sit externally on the sclera and only a micro-needle penetrates inside the vitreous space through pars plana. In vitro tests showed a sensitivity of 15 kHz/mmHg with about 1 mmHg resolution. In vivo tests included one month implantation in rabbits, confirming the device biocompatibility and functionality.

Keywords

SENSOR

DOI

10.1109/MEMSYS.2012.6170336

Citation

An ocular tack for minimally invasive continuous wireless monitoring of intraocular pressure G. D. Chitnis; T. Maleki; B. Samuels; L. B. Cantor; B. Ziaie Micro Electro Mechanical Systems (MEMS), 2012 IEEE 25th International Conference on Year: 2012

Date of this Version

1-29-2012

Recommended Citation

Chitnis, Girish D.; Maleki, Teimour; Samuels, B.; Cantor, L. B.; and Ziaie, Babak, "An Ocular Tack for Minimally Invasive Continuous Wireless Monitoring of Intraocular Pressure" (2012). Birck and NCN Publications. Paper 1277.
http://dx.doi.org/10.1109/MEMSYS.2012.6170336