Surgery – Instruments – Corneal cutter or guide for corneal cutter
Patent
1993-11-12
1995-05-02
Pellegrino, Stephen C.
Surgery
Instruments
Corneal cutter or guide for corneal cutter
8352214, 606170, A61B 1732
Patent
active
054115116
ABSTRACT:
A keratotomy incision is formed in a cornea manipulating an RK knife so that its blade extends a preselected depth into a preselected point on the cornea. Sufficient force is applied by a surgeon's fingers to the knife to advance its blade in a preselected direction. Advancement of the blade is halted when resistance of the cornea against the blade exceeds a certain level. A signal representative of the resistance is produced by a strain gauge or transducer in or on the knife. The level of the resistance is indicated on a display or audibly in response to the signal.
REFERENCES:
patent: 4178820 (1979-12-01), Gerber
patent: 4200015 (1980-04-01), Gerber
patent: 4543867 (1985-10-01), Ichikawa
patent: 4637393 (1987-01-01), Ray
patent: 4665914 (1987-05-01), Tanne
patent: 4750489 (1988-06-01), Berkman et al.
patent: 4943296 (1990-07-01), Funakubo et al.
patent: 5222967 (1993-06-01), Casebeer et al.
patent: 5308355 (1994-05-01), Dybbs
"Introduction to Biomechanics of the Cornea" by Kurt A. Buzard, MD, FACS, Retractive & Corneal Surgery, vol. 8, Mar./Apr. 1992, pp. 127-138.
Mulcare Nancy
Pellegrino Stephen C.
LandOfFree
Method and device for determining placement of keratotomy incisi 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 and device for determining placement of keratotomy incisi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for determining placement of keratotomy incisi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1133836