Surgery – Instruments – Light application
Patent
1995-06-06
1999-02-02
Shay, David M.
Surgery
Instruments
Light application
606 3, 606 10, 606 13, 606 17, A61K 502
Patent
active
058658300
ABSTRACT:
A noncontact laser microsurgical apparatus and method for marking a cornea of a patient's or donor's eye in transplanting surgery or keratoplasty, and in incising or excising the corneal tissue in keratotomy, and for tissue welding during thermokeratoplasty. The noncontact laser microsurgical apparatus comprises a laser source and a projection optical system for converting laser beams emitted from the laser source into coaxially distributed beam spots on the cornea. The apparatus further includes a multiple-facet prismatic axicon lens system movably mounted for varying the distribution of the beam spots on the cornea. In a further embodiment of the method of the present invention, an adjustable mask pattern is inserted in the optical path of the laser source to selectively block certain portions of the laser beams to thereby impinge only selected areas of the cornea.
REFERENCES:
patent: 4648400 (1987-03-01), Schneider et al.
patent: 4665913 (1987-05-01), L'Espenance, Jr.
patent: 4729372 (1988-03-01), L'Espenance
patent: 4884884 (1989-12-01), Reis
patent: 4887592 (1989-12-01), Loertscher
patent: 4941093 (1990-07-01), Marshall et al.
patent: 4976709 (1990-12-01), Sand
patent: 5137530 (1992-08-01), Sand
patent: 5152759 (1992-10-01), Parel et al.
patent: 5263951 (1993-11-01), Spears et al.
patent: 5281211 (1994-01-01), Parel et al.
patent: 5304169 (1994-04-01), Sand
Selective Photothermolysis Peverse Microsurgery by UExternal Absorptions of Pulsed Radiation by Anderson et al.; Science; vol. 220 pp. 24-527, 4183.
Abergel RP, Lyons R, Dwyer R, et al: Use of lasers for use of cutaneous wounds: experience with Nd: YAG, Argon, and CO2 lasers.J Dermatol Surg Oncol 1986; 12:1181-1185.
Abergel RP, Lyons RF, White RA, et al: Skin closure by Nd: YAG laser welding. J Am Acad Dermatol 1986; 5:810-814.
Ashworth EM, Dalsing MC, Olson JF, et al: Large-Artery welding with a milliwatt carbon dioxide laser. Arch Surg 1987; 122:673-677.
Bailes JE, Quigley MR, Cerullo LJ, et al: Review of tissue welding applications in neurosurgery. Microsurgery 1987; 8:242-244.
Burger RA, Gerharz CD, Kuppers P, et al: Laser welded vascular anastomosis. Urol Res 1988: 16:127-131.
Cespanyl E, White RA, Lyons R, et al: Preliminary report: a new technique of enterotomy closure using Nd: YAG laser welding compared to suture repair. J Surg Res 1987; 42:147-152.
Choe JK, Dawood MY, Bardawil WA, et al: Clinical and histological evaluation of laser reanastomosis of the uterine tube. Fert Ster 1984; 41:754-760.
Dayton MT, Decker DL, McClane R, et al: Copper vapor laser fragmentation of gallstones: in vitro measurements of wall heat transmission. J Surg Res 1988; 45:90-95.
Fayez A: Comparison between tubouterine implantation and tubouterine anastomosis for repair or cornual occlusion. Microsurgery 1987; 8:78-82.
Fayez JA, McComb JS, Harper MA: Comparison of tubal surgery with the CO2 laser and the unipolar microelectrode. Fert Ster 1983; 40:476-480.
Fayez JA, Jobson VW, Lentz SS: Tubal microsurgery with the carbon dioxide laser. Am J Obstet Gynecol 1983; 146:371-373.
Fischer DW, Beggs JL, Kenshal DL: Comparative study of microepineurial anastomoses with the use of CO2 laser and suture techniques in rat sciatic nerves: part 1. Neurosurgery 1985; 17:300-308.
Flemming AFS, Colles MJ, Guillianotti R, et al: Laser assisted microvascular anastomosis of arteries and veins: laser tissue welding. BrR J Plas Surg 1988; 41:378-388.
Gilbert PTO, Beckert R: Laser-assisted vasovasostomy. Lasers in Surg and Med 1989; 9:42-44.
Grubbs PE, Wang S, Marini C: Enhancement of CO2 laser microvascular anastomoses by fibrin glue. J Surg Res 1988: 45;112-119.
Hadley MN, Martin NA, Spetzler RF, et al: Comparative transoral dural closure techniques: a canin model. Neurosurgery 1988; 22:392-397.
Hiehle JF, Bourgelais DBC, Shapshay S, et al: Nd-YAG laser fusion of human atheromatous plaque-arterial wall separations in vitro. Am J Cardiol 1985; 56:953-957.
Kopchok GE, White RA, White GH, et al: CO2 and Argon laser vascular welding: Acute histologic and thermodynamic comparison. Las Surg Med 1988; 8:584-588.
LoCicero J, Frederiksen JW, Hartz RS, et al: Experimental air leaks in lung sealed by low-energy carbon dioxide laser irradiation. Chest 1985; 6:820-822.
Lowe BA, Poage MD: Vasovasostomy in the murine vas deferens: Comparison of the Nd:YAG laser at 1.06 microns and 1.318 microns to the CO2 laser. Lasers Surg Med 1988; 8:377-380.
Lynne CM, Carter M, Dew A, et al: Laser-assisted vas anastomosis: a preliminary report. Lasers Surg Med 1983; 3:261-263.
Merguerian PA, Rabinowitz R: Dismembered nonstented uterouterostomy using the carbon dioxide laser with the rabbit: Comparison with suture anastomosis. J Urol 1986; 136:229-231.
Nammour S, Carleer M, Renneboog-Squilbin C, et al: Use of the laser for welding cracks on the dental enamel. Jour Biol Buccale 1987; 15:37-43.
Negro AG, Rogers DW, Naim JO, et al: Comparison of microsurgical suture and CO2 laser-welded anastomoses of rabbit uterine cornua. Lasers Surg Med 1987; 6:533-535.
Poppas DP, Schlossberg SM, Richmond IL, et al: Laser welding in urethral surgery: improved results with a protein solder. J Urol 1988; 139:415-417.
Pribil S, Powers SK: Carotid artery end-to-end anastomosis in the rat using the argon laser. J Neurosurg 1985; 63:771-775.
Rochkind S, Rabau MY, Goldman G, et al: Low-Energy CO2 laser intestinal anastomosis: an experimental study. Lasers Surg Med 1988; 8:579-583.
Rosemberg SK, Elson LM, Nathan LE, et al: Laser Vasovasostomy. Invest Urol 1988; 31:237-239.
Ruiz-Razura A, Lan M, Cohen BE: The laser-assisted end-to-side microvascular anastomosis. Plas Reconstr Surg 1989; 83:511-517.
Sauer JS, Hinshaw JR, McGuire KP: The first sutureless, laser-welded, end-to-end bowel anastomosis. Lasers Surg Med 1989; 9:70-73.
Sauer JS, Rogers DW, Hinsaw JR: Bursting pressures of CO2 laser-welded rabbit ileum. Lasers Surg Med 1986; 6:106-109.
Schober R, Ulrich F, Sander T: Laser-induced alteration of collagen substructure allows microsurgical tissue welding. Science 1986; 232:1421-1422.
Shapiro AG, Carter M, Ahmed A, et al: Conventional reanastomosis versus laser welding of rat uterine horns. Am J Obstet Gynecol 1987; 156:1006-1009.
Sjoren G, Anderson M, Bergman M: Laser welding of titanium in dentistry. ACTA Odontol Scand 1988; 46:247-253.
Thomsen S, Morris JR, Neblett CR, et al: Tissue welding using a low energy microsurgical CO2 laser. Med Instrum 1987; 21:231-237.
Vlasak JW, Kopchok GE, White RA, et al: Closure of rabbit ileum enterotomies with the argon and CO2 lasers: bursting pressures and histology. Lasers Surg Med 1988; 8:527-532.
Wang S, Grubbs PE, Basu S, et al: Effect of blood bonding on bursting strength of laser-assisted microvascular anastomoses. Microsurgery 1988; 9:10-13.
White RA: Technical frontiers for the vascular surgeon: laser anastomotic welding and angioscopy-assisted intraluminal instrumentation. Vasc Surg 1987; 5:673-680.
White RA, Abergel RP, Klein SR, et al: Laser welding of venotomies. Arch Surg 1986; 121:905-907.
White RA, Abergel RP, Lyons R, et al: Biological effects of laser welding on vascular healing. Lasers in Surg Med 1986; 6:137-141.
White RA, Abergel RP, Lyons R, et al: Laser welding: an alternative method of venous repair. J Surg Res 1986; 41:260-263.
White RA, Kopchok G, Donayre C, et al: Comparison of laser-welded and sutured arteriotomies. Arch Surg 1986; 121:1133-1135.
White RA, Kopchok G, Donayre C, et al: Laser welding of large diameter arteries and veins. Trans Am Soc Artif Intern Organs 1986; 32:181-183.
White RA, Kopchok GE, Donayre CE, et al: Mechanism of tissue fusion in argon laser-welded vein-artery anastomoses. Lasers Surg Med 1988; 8:83-89.
White RA, Kopchok G, Donayre C, et al: Argon laser-welded arteriovenous anastomoses. J Vasc Surg 1987; 447-453.
Kobayashi Katsuhiko
Parel Jean-Marie
Yokokura Takashi
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