Method for instilling a controlled dose of fluid into the eye

Surgery – Means for introducing or removing material from body for... – Treating material applied to or removed from external...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61M 3500

Patent

active

061591890

ABSTRACT:
The invention is a test strip and method for delivering a controlled dose of fluid to the eye. The strip and method is useful to determine break-up-time of the tear film over the cornea. The method comprises providing a planar ophthalmic test strip having a length greater than its width and having a tip on at least one of its end. The tip adsorbs liquids, has a width that is less than the width of the remainder of the strip, and has a surface area not exceeding 30 square mm. The tip is wetted with liquid, placed in contact with the corneal surface and break-up-time is observed. The test strip is designed to deliver a limited dose of from 0.5 to 1.0 .mu.l of liquid to the surface of the cornea.

REFERENCES:
patent: 3075527 (1963-01-01), Bechtold
patent: 4409205 (1983-10-01), Shively
patent: 4540408 (1985-09-01), Lloyd
patent: 5352445 (1994-10-01), Lavaux
patent: 5884630 (1999-03-01), Fujishima
Lemp MA, Hamill Jr., "Factors affecting tear film break-up-time in normal eyes", Arch Ophthalmo (1973) 89:103-105.
Rengstorff, "The precorneal tear film: breakup time and location in normal subjects", Am J Optom Physiol Opt 1974; 51-765.
Norn, "Diagnosis of dry eye"; Lemp et al., The Dry Eye. A Comprehensive Guide, Berlin: Springer--Verlag, 1992:152, 153, 178.
Tomlinson, "Complications of Contact Lens Wear", St. Louis: Mosby, 1992:169, 205.
Lowther, "Examination of patients and predicting tear film-related problems with hydrogel lens wear", Dryness, Tears, and Contact Lens Wear, Boston: Butterworth-Heinemann, 1997:39, 41.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for instilling a controlled dose of fluid into the eye does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for instilling a controlled dose of fluid into the eye, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for instilling a controlled dose of fluid into the eye will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-211830

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.