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1. (WO2005065225) EMBOUT JETABLE POUR TONOMETRE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

WHAT IS CLAIMED IS:
1. A disposable tip cover for a tonometer comprising a thin optically diffusing translucent film, the film being sandwiched between an inner ring which is adapted to be disposed on a fiber optic array cylinder of a tonometer, and an outer ring for securing the film onto the inner ring for facilitating intimate contact of a surface of the film with a surface of the cylinder.
2. A tip as in Claim 1 wherein a tip cover suppresses an image of the iris of the eye and other image artifacts caused by reflection from structures located behind the cornea of the eye.

3. A tip as in Claim 1 wherein the tip cover is an EMA film, preferably one mil or less thick for preventing distortion of a force signal during applanation with a tonometer.
4. A tip as in Claim 1 wherein the tip cover has a neutral color to help produce maximum image contrast.
5. A tip as in Claim 1 wherein the tip cover is translucent to allow light to be coupled from the area of corneal contact during contact with the comea.
6. A tip as in Claim 1 wherein the tip cover is diffusing to prevent spurious imaging of structures not in contact with the tonometer tip.
7. A tip as in Claim 1 wherein the tip cover film is ethylacrylate copolymer film, preferably about .9 mil in thickness.
8. A disposable tip cover for a tonometer comprising a tip cover formed of a material for reducing depth of field of the imaging system of the tonometer while passing a contact eye image to a sensor of the tonometer.
9. A tip cover as in Claim 8 wherein the tip cover is translucent for preventing spurious imaging of structures of the eye not in contact with the tonometer tip.
10. A tip cover as in Claim 8 further including an inner ring and an outer ring for sandwiching the tip cover therebetween.
11. A tip cover as in Claim 10 wherein at least one of the rings is flexible.
12. An applanation tonometer comprising
a housing adapted to be hand held , fiber optic array extending from the housing and for transferring force of applanation to a force sensor within the tonometer housing and for providing collimation and even and uninterrupted conduction of illumination to an exterior tip of the cylinder, and
a disposable tip cover attachable to the exterior tip of the cylinder, the tip cover comprising a translucent and light diffusing film.
13. A tonometer as in Claim 12 wherein the tip cover is an EMA film, preferably one mil or less thick for preventing distortion of a force signal during applanation with a tonometer.

14. A tonometer as in Claim 4 wherein the tip cover is an EMA film, preferably one mil or less thick for preventing distortion of a force signal during applanation with a tonometer.

15. A tonometer as in Claim 7 wherein the tip cover is an EMA film, preferably one mil or less thick for preventing distortion of a force signal during applanation with a tonometer.