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METHOD AND DEVICE FOR MONITORING BIOMECHANICAL PROPERTIES OF THE EYE
专利权人:
Jean-Noel FEHR;Alain SAURER
发明人:
Alain SAURER,Jean-Noel FEHR
申请号:
US13277379
公开号:
US20130102921A1
申请日:
2011.10.20
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A contact lens shaped measuring device (1) includes sensor (3) having a protrusion (14) towards the cornea (22). The measuring device (1) is flexible to a degree that it is flattened by a closing eye lid and the protrusion creates an indentation of the cornea. The occurring force on the protrusion is measured by the sensor. Applying a constant lid acceleration/deceleration model to the movement of the lid and a mechanical model to the cornea, the tension of the cornea is determined and deduced from the force measured with the lid closed, yielding the true intraocular pressure. In an alternative, the protrusion is characterized by a discontinuity in its shape, or the sensor is subdivided, each subsensor being characterized by a protrusion of different shape. With the values obtained as extrema and at the discontinuity or with different protrusions, the cornea tension can be obtained by a (linear) extrapolation.
来源网站:
中国工程科技知识中心
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