Surgery – Instruments – Stereotaxic device
Patent
1994-02-02
1997-01-07
Buiz, Michael Powell
Surgery
Instruments
Stereotaxic device
606166, A61B 1900, A61F 900
Patent
active
055911749
ABSTRACT:
An apparatus for calibrating the blade extension of a microkeratome includes a magnifying device and a fixture for holding the microkeratome assembly adjacent thereto. The magnifying device defines a line of sight and includes a reticle visible in the line of sight. The fixture supports the bottom surface of the shim of the microkeratome in a plane parallel to the line of sight of the magnifying device. In measuring the blade extension, the reticle is first aligned with either the cutting edge of the blade or the bottom surface of the gauge member. Relative movement between the reticle and the fixture is effected until the reticle is aligned with the other of the cutting edge and bottom surface of the gauge member. A measuring device monitors the relative movement. The reading of the measuring device equals the blade extension of the microkeratome.
REFERENCES:
patent: 679779 (1901-08-01), Pierpont
patent: 936667 (1909-10-01), Reynolds
patent: 1761260 (1930-06-01), Gallasch
patent: 1896828 (1933-02-01), Nichterlein
patent: 1974606 (1934-09-01), Fassin
patent: 2486645 (1949-11-01), Hager
patent: 2539597 (1951-01-01), Staples
patent: 2648138 (1953-08-01), Gase
patent: 2697433 (1954-12-01), Zehnder
patent: 3167868 (1965-02-01), Arneson
patent: 3217416 (1965-11-01), Bachert et al.
patent: 3231982 (1966-02-01), Ribich
patent: 3331650 (1967-07-01), Williams
patent: 3508835 (1970-04-01), Ware
patent: 3535793 (1970-10-01), Williams et al.
patent: 3583403 (1971-06-01), Pohl et al.
patent: 3606550 (1971-09-01), Proksa
patent: 3701199 (1972-10-01), Lewis
patent: 3846008 (1974-11-01), Sobajima et al.
patent: 4180075 (1979-12-01), Marinoff
patent: 4205682 (1980-06-01), Crock et al.
patent: 4265023 (1981-05-01), Frost et al.
patent: 4271740 (1981-06-01), Yamazaki et al.
patent: 4329785 (1982-05-01), Peterson
patent: 4414749 (1983-11-01), Johannsmeier
patent: 4438567 (1984-03-01), Raiha
patent: 4495701 (1985-01-01), Nakadoi
patent: 4499898 (1985-02-01), Knepshield et al.
patent: 4526171 (1985-07-01), Schachar
patent: 4538356 (1985-09-01), Knepshield et al.
patent: 4619259 (1986-10-01), Graybill et al.
patent: 4630378 (1986-12-01), Kulp et al.
patent: 4660556 (1987-04-01), Swinger et al.
patent: 4662075 (1987-05-01), Mastel et al.
patent: 4662370 (1987-05-01), Hoffmann et al.
patent: 4750489 (1988-06-01), Berkman et al.
patent: 4750491 (1988-06-01), Kaufman et al.
patent: 4807623 (1989-02-01), Lieberman
patent: 4815218 (1989-03-01), Gordy
patent: 4884570 (1989-12-01), Krumeich et al.
patent: 4898170 (1990-02-01), Hofmann et al.
patent: 4903695 (1990-02-01), Warner et al.
patent: 4997437 (1991-03-01), Grieshaber
patent: 5105545 (1992-04-01), Fletcher
patent: 5108412 (1992-04-01), Krumeich et al.
patent: 5133726 (1992-07-01), Ruiz et al.
patent: 5152786 (1992-10-01), Hanna
patent: 5203865 (1993-04-01), Siepser
patent: 5215104 (1993-06-01), Steinert
patent: 5222967 (1993-06-01), Casebeer et al.
patent: 5224950 (1993-07-01), Prywes
patent: 5288292 (1994-02-01), Giraud et al.
patent: 5447517 (1995-09-01), Steen et al.
"The Optical Micrometer", by R. V. Jones, May-Jun. 1976, vol. 15, No. 3, Optical Engineering, pp. 247-250.
"A New Keratome", by Robert C. Drews, M. D., Mar.-Apr. 1967, 71(2), Trans American Academy of Ophthalmology and Otolaryngology, p. 366.
"Disposable Keratome Blade and Its Use in Cataract Surgery", by J. Elliott Blaydes, Jr., M. D., Nov. 1971, 72(5), American Journal of Ophthalmology, p. 1012.
"New Methods in Refractive Corneal Surgery--An Experimental Study", by J. Draeger et al., May 1988, 192(5) Klin. Mbl. Augenheilk, pp. 458-461.
"A Semi-Automatic Electric Keratome for Lamellar Corneal Graft", by J. Draeger, Sep. 1975, 167(3), Klin. Mbl. Augenheilk, pp. 353-359.
"Instrumentation for Lamellar Refractive Surgery", .COPYRGT.1988, 1989, Bores Eye Institute, Chapter 4, pp. 1-9.
"An Independent Evaluation of Second Generation Suction Microkeratomes," by Robert F. Hofmann, M. D., and Samir J. Bechara, M. D., Refractive & Corneal Surgery, vol. 8, Sep./Oct. 1992, pp. 348-354.
"SCMD Keratome Unit," by G. Richard Smith, Refractive & Corneal Surgery, vol. 6, May/Jun. 1990, p. 207.
Clark Raymond C.
Grisel Hilton L.
Reimann Kent D.
Buiz Michael Powell
Chiron Vision Corporation
Mulcare Nancy
LandOfFree
Microkeratome and method and apparatus for calibrating a microke does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microkeratome and method and apparatus for calibrating a microke, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microkeratome and method and apparatus for calibrating a microke will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1760763