Implantable mechanical pressure sensor and method of manufacturing the same
US7252006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Jun 7, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.