Measuring and testing – Fluid pressure gauge
Reexamination Certificate
2007-08-07
2007-08-07
Allen, Andre J. (Department: 2855)
Measuring and testing
Fluid pressure gauge
C600S486000
Reexamination Certificate
active
11148124
ABSTRACT:
A biocompatible, mechanical, micromachined pressure sensor and methods of manufacturing such a pressure sensor are provided. The pressure sensor of the current invention includes a high-aspect-ratio curved-tube structure fabricated through a one-layer parylene process. The pressure sensor of the current invention requires zero power consumption and indicates the pressure variation by changes of the in situ in-plane motion of the sensor, which can be gauged externally by a direct and convenient optical observation. In one embodiment, the pressure sensor of the current invention has been shown to work as an IOP sensor for eye implantation where the intraocular in-plane motion of the sensor can be recorded from outside of the eye, such that the intraocular pressure in glaucoma patients can be constantly monitored.
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Chen Po-Jui
Humayun Mark
Meng Ellis
Rodger Damien C.
Tai Yu-Chong
Allen Andre J.
California Institute of Technology
Christie Parker & Hale LLP
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