Surgery – Instruments – Light application
Reexamination Certificate
2007-06-19
2007-06-19
Farah, A. (Department: 3735)
Surgery
Instruments
Light application
C606S004000, C606S010000, C606S012000, C351S212000, C128S898000
Reexamination Certificate
active
11033967
ABSTRACT:
A closed-loop control system for altering the optical characteristics of a patient's cornea includes an algorithm for predicting the shape of the cornea after one or more gas bubbles resulting from intrastromal photoablation have collapsed. Patient data can be used as an input for the algorithm, which is then run to prepare an initial treatment plan for a corneal alteration. The initial plan typically includes a plurality of intrastromal photoablation locations and corresponding ablation energies. After photoablation of plan location(s) and before the resulting bubbles collapse, a real-time wavefront shape for light passing through the cornea is measured. The wavefront is then used in the algorithm to predict a post bubble collapse cornea shape and to generate an updated treatment plan. The procedure then continues by ablating location(s) identified in the updated treatment plan. Wavefront measurement and plan updating can be repeated as many times as desired.
REFERENCES:
patent: 4391275 (1983-07-01), Fankhauser et al.
patent: 4718418 (1988-01-01), L'Esperance, Jr.
patent: 4721379 (1988-01-01), L'Esperance
patent: 4770172 (1988-09-01), L'Esperance, Jr.
patent: 4907586 (1990-03-01), Bille et al.
patent: 4988348 (1991-01-01), Bille
patent: 5777719 (1998-07-01), Williams et al.
patent: 6050687 (2000-04-01), Bille et al.
patent: 6095651 (2000-08-01), Williams et al.
patent: 6210401 (2001-04-01), Lai
patent: 6220707 (2001-04-01), Bille
patent: 6413251 (2002-07-01), Williams
patent: 6428533 (2002-08-01), Bille
patent: 6887232 (2005-05-01), Bille
patent: 2004/0092914 (2004-05-01), Bille
patent: 2005/0245915 (2005-11-01), Loesel et al.
patent: 1 419 752 (2004-05-01), None
Farah A.
Nydegger & Associates
LandOfFree
Closed loop control for intrastromal wavefront-guided... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closed loop control for intrastromal wavefront-guided..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop control for intrastromal wavefront-guided... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3823802