Ophthalmologic applanation cornea contactor replacement system for eye examining instrument

Patent No. 7,479,109

Issued: January 20, 2009
Filed: October 31, 2007

Inventors: Falck, Jr.; Francis Y (Stonington, NY), Falck; Robert W (Pawcatuck, CT)
Assignee: Falck Medical, Inc. (Mystic, CT)


A replaceable cornea contactor for an eye examining instrument is made to be discarded after each use. A bendable tab molded on the cornea contactor is deformed by a strain gauge as the cornea contactor is inserted into a cornea contactor holder, and a signal from the strain gauge is used to verify that a previously unused cornea contactor has been inserted into the holder. A microprocessor is programmed to recognize the signal produced by initial deformation of the cornea contactor tab so as to proceed with an eye examination only after receiving the strain gauge signal verifying that a previously unused cornea contactor has been inserted.

Reference to Related Applications

This is a continuation-in-part patent application of application Ser. No. 11/420,946 filed 30 May 2006, entitled "Opthalmologic Applanation Prism Replacement System"; which is abandoned upon filing of this application, and which in turn is a continuation-in-part of application Ser. No. 10/453,253, filed 3 Jun. 2003, entitled "Opthalmologic Applanation Prism Replacement System". The aforementioned applications are incorporated herein by reference.


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