Surgery – Instruments – Light application
Patent
1990-08-15
2000-12-12
Shay, David M.
Surgery
Instruments
Light application
A61N 506
Patent
active
06159203&
ABSTRACT:
Laser energy produced by a laser operating in the mid-infrared region (approximately 2 micrometers) is delivered by an optical fiber in a catheter to a surgical site for biological tissue removal and repair. Disclosed laser sources which have an output wavelength in this region include: Holmium-doped Yttrium Aluminum Garnet (Ho:YAG), Holmium-doped Yttrium Lithium Fluoride (Ho:YLF), Erbium-doped YAG, Erbium-doped YLF and Thulium-doped YAG. For tissue removal, the lasers are operated with relatively long pulses at energy levels of approximately 1 joule per pulse. For tissue repair, the lasers are operated in a continuous wave mode at low power. Laser output energy is applied to a silica-based optical fiber which has been specially purified to reduce the hydroxyl-ion concentration to a low level. The catheter may be comprised of a single optical fiber or a plurality of optical fibers arranged to give overlapping output patterns for large area coverage.
REFERENCES:
patent: 1751584 (1930-03-01), Hansell
patent: 3327712 (1967-06-01), Kaufman
patent: 3533707 (1970-10-01), Weiss
patent: 3769963 (1973-11-01), Goldman et al.
patent: 3884236 (1975-05-01), Krasnov
patent: 3947780 (1976-03-01), Rice et al.
patent: 3982541 (1976-09-01), L'Esperance
patent: 3983511 (1976-09-01), Fricke
patent: 4110702 (1978-08-01), Chicklis
patent: 4141362 (1979-02-01), Wurster
patent: 4146019 (1979-03-01), Bass et al.
patent: 4170997 (1979-10-01), Pinnow et al.
patent: 4207874 (1980-06-01), Choy
patent: 4233493 (1980-11-01), Nath
patent: 4266548 (1981-05-01), David
patent: 4309998 (1982-01-01), Aron nee Rosa et al.
patent: 4321559 (1982-03-01), Esterowitz et al.
patent: 4330763 (1982-05-01), Esterowitz et al.
patent: 4350150 (1982-09-01), Kubota et al.
patent: 4355893 (1982-10-01), Chicklis
patent: 4383729 (1983-05-01), Suzuki et al.
patent: 4386428 (1983-05-01), Baer
patent: 4402311 (1983-09-01), Hattori
patent: 4418688 (1983-12-01), Loeb
patent: 4425503 (1984-01-01), Watkins et al.
patent: 4445918 (1984-05-01), Modone et al.
patent: 4454882 (1984-06-01), Takano
patent: 4458683 (1984-07-01), Saito et al.
patent: 4469098 (1984-09-01), Davi
patent: 4470407 (1984-09-01), Hussein
patent: 4503854 (1985-03-01), Jako
patent: 4504297 (1985-03-01), Kosinski et al.
patent: 4515612 (1985-05-01), Burrus, Jr. et al.
patent: 4538608 (1985-09-01), L'Esperance, Jr. et al.
patent: 4556057 (1985-12-01), Hiruma et al.
patent: 4559942 (1985-12-01), Eisenberg
patent: 4566453 (1986-01-01), Kumano et al.
patent: 4566765 (1986-01-01), Miyauchi et al.
patent: 4572189 (1986-02-01), Smith et al.
patent: 4576177 (1986-03-01), Webster, Jr.
patent: 4641912 (1987-02-01), Goldenberg
patent: 4648892 (1987-03-01), Kittrell et al.
patent: 4654024 (1987-03-01), Crittendon et al.
patent: 4672969 (1987-06-01), Dew
patent: 4685458 (1987-08-01), Leckrone
patent: 4686979 (1987-08-01), Gruen et al.
patent: 4732448 (1988-03-01), Goldenberg
patent: 4750486 (1988-06-01), Butler et al.
patent: 4775361 (1988-10-01), Jacques et al.
patent: 4784132 (1988-11-01), Fox et al.
patent: 4784135 (1988-11-01), Blum et al.
patent: 4799754 (1989-01-01), Goldenberg
patent: 4800876 (1989-01-01), Fox et al.
patent: 4817601 (1989-04-01), Roth et al.
patent: 4819632 (1989-04-01), Davies
patent: 4830460 (1989-05-01), Goldenberg
patent: 4848336 (1989-07-01), Fox et al.
patent: 4850351 (1989-07-01), Herman et al.
patent: 4852567 (1989-08-01), Sinofsky
patent: 4854315 (1989-08-01), Stack et al.
patent: 4878492 (1989-11-01), Sinofsky et al.
patent: 4905689 (1990-03-01), Stack et al.
patent: 4917084 (1990-04-01), Sinofsky
patent: 4929246 (1990-05-01), Sinofsky
patent: 4950266 (1990-08-01), Sinofsky
patent: 5037421 (1991-08-01), Boutacoff et al.
Ed Sinofsky,Comparative Thermal Modeling of Er:YAG, Ho:YAG and CO2 Laser Pulses For Tissue Vaporization, Proceedings fo SPIE-The International Society For Optical Engineering, vol. 712, Lasers in Medicine (1986), pp. 188-192.
L. Deckelbaum, et al, Reduction of Laser Inducted Pathological Tissue Injury Using Post-Energy Delivery, vol. 56, Oct. 1, 1985, pp. 662-667.
M. Motamedi, et al, Interaction of Laser Raidation with Plaque and Vessel Wall, Icaleo'84, Technical Digest.
E. Sinofsky, et al., "Calculated Temperature Distribution in Cylindrical Tissue Volume Under Laser Irradiation Below the Vaporization Threshold", Lasers in Medicine; Proceedings of the S.P.I.E., vol. 712, 1987, p. 78.
H. Ward, Laser Recannalization of Atheromatous Vessels Using Fiber Optics, Lasers in Surgery and Medicine 4; 353-363 (1984).
Paul E. McGuff, et al, Studies of the Surgical Applications of Laser Light (Light Amplification bhy Stimulated Emission of Radiation), Surgical Form, vol. XIV, American College of Surgeons, Chicago, Illinois (1963).
Leon Goldman, et al, The Biomedical Laser: Technology And Clinical Applications, (1981).
Garrett Lee et al., Current and Potential Uses of Lasers In The Treatment of Of Atherosclerotic Disease, Chest, vol. 85, No. 3, Mar., 1984 pp.429-434.
Garrett Lee et al., Limitations, Risks and Complications of Laser Recanalization: A Cautious Approach Warranted, The American Journal of Cardiology, vol. 56, Jun. 1, 1985, pp. 181-185; and.
E. Sinofsky, et al, Measurement of Argon Laserbeam Spreading Through Arterial Plaque, Lasers in the Life Sciences, 1(2), 1986, pp. 143-150.
L. Esterowitz, et al Angioplasty with a Laser and Fiber Optics at 2.9 um, SPIE Conference, Jan. 1986, Los Angeles, California.
Beckman, et al, Limbectomies, Keratectomies, And Keratostomies Performed With A Rapid-Publised Carbon Dioxide Laser, Am, J. Ophthal vol. 71, No. 6, Jun. 1971, pp. 1277-1283.
H. Fugii, et al, Fibre Bundle Scanner For Laser Photocoagulation Treatment, Optics & Laser Technology Feb. 82 pp 39-40.
The happy merger of fiber optics and lasers; David N, Kay; Information Retrieval No. 22; News RT 167 Electronic Design, vol. 17 Jun. 21, 1969.
Solid State Laser Engineering; Springer-Verlag New York Heidelberg Berlin 1976; Walter Koechner.
Wolbarsht, Myron L., "Interactions Betwwen Material Processing and Surgery", ICALEO, 4/L.I.A., vol. 32 (1982).
Anderson, R. Rox and Parrish, John A., "Microvasculature Can Be Selectively Damaged Using Dye Lasers: A Basic Theory and Experimental Evidence in Human Skin", Lasers in Surgery and Medicine, vol. 1, pp. 263-276 (1981).
Anderson, R. Rox and Parrish, John A., "Selective Photothermolysis: Precise Microsurgery by Selective Absorption of Pulsed Radiation", Science, vol. 220, pp. 524-527, Apr. 29, 1983.
Abela, George S. et al., Effects of Carbon Dioxide, Nd-YAG, and Argon Laser Radiation on Coronary Atheromatous Plaques, The American Journal of Cardiology, vol. 50, No. 6, pp. 1199-1205, Dec. 1982.
Fraser, A.B. et al., "Pulsed Laser Iridotomy Apparatus", The Johns Hopkins University--Applied Physics Laboratory, Oct. 1977-Sep. 1978.
"Mechanism of Laser Alation in an Absorbing Fluid Field" by Jeffrey M. Isner et al. (1988).
"Transmission of pulsed laser beams through "opaque" liquids by a Cavitation effect" by A. Sa'ar (1987).
"Noncontact tissue ablation by holmuim: VSGG Laser pulse in blood" by Van Lowen et al; Lasers Surg Med vol. 11, No. 1, 1991 pp 26-34.
"A new "cool" lens capsulotomy laser" by Horn et al; Am. Intro-Ocular Implant Soc. J.; vol. 8 Fall 1982 pp. 337-342.
"Interactions between material processing and surgery" by Wolbarsht LIA vol. 32 ICAEO (1982).
CardioFocus, Inc.
Engellenner Thomas J.
Shay David M.
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