Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1997-06-26
1999-07-06
Kim, Robert
Optics: measuring and testing
By particle light scattering
With photocell detection
356359, G01B 902
Patent
active
059203900
ABSTRACT:
The fiberoptic interferometer includes a broadband light source which is selected to illuminate tissue of predetermined organ with light having a wavelength within a predetermined range of wavelengths. Within the predetermined range of wavelengths, the attenuation characteristics of tissue of the predetermined organ define a region of minimum attenuation upon illumination with light having a first wavelength. As a result, the fiberoptic interferometer can precisely determine the optical properties of the tissue and can therefore identify the tissue by comparing the interferometric signal produced upon illumination of the tissue sample with predetermined interferometric signals corresponding to illumination of different types of tissue of the predetermined organ with light having the first wavelength. The fiberoptic interferometer can also include a light source which includes wavelength selection means for controllably selecting the predetermined wavelength of light emitted by the light source. Thus, the optical properties of the tissue can be analyzed at the different wavelengths emitted by the light source to individually determine the optimum wavelength of light for subsequent treatment of the tissue.
REFERENCES:
patent: 4228804 (1980-10-01), Holasek et al.
patent: 4315514 (1982-02-01), Drewes et al.
patent: 4873651 (1989-10-01), Raviv
patent: 5202745 (1993-04-01), Sorin et al.
patent: 5203339 (1993-04-01), Knuttel et al.
patent: 5231464 (1993-07-01), Ichimura et al.
patent: 5321501 (1994-06-01), Swanson et al.
patent: 5383467 (1995-01-01), Auer et al.
patent: 5434669 (1995-07-01), Tabata et al.
patent: 5459570 (1995-10-01), Swanson et al.
patent: 5491524 (1996-02-01), Hellmuth et al.
patent: 5491552 (1996-02-01), Knuttel
patent: 5493109 (1996-02-01), Wei et al.
patent: 5570182 (1996-10-01), Nathel et al.
patent: 5710630 (1998-01-01), Essenpreis et al.
patent: 5716324 (1998-02-01), Toida
Radiation and Environmental Biophysics--J. Eichler, J. Knof, and H. Lenz--Measurements on the Depth of Penetration of Light (0.35-1.0 .mu.m) in Tissue--1977--pp. 239-242.
Phys. Med. Biol.--J B Dawson, D J Barker, D J Ellis, E Grassam, J A Cotterill, G W Fisher, and J W Feather--A theoretical and experimental study of light absorption and scattering by in vivo skin--Jan. 29, 1980--vol. 25 No. 4, 695-709.
Journal of Investigative Dermatology--R. Rox Anderson, B.S. and John A. Parrish M.D.--The Optics of Human Skin--1981--77:13-19.
Lasers in Surgery and Medicine--Martin J.C. van Gemert, PhD, A.J. Welch, PhD, and Alpesh P. Amin, BSc--Is There An Optimal Laser Treatment for Port Wine Stains?--1986--6:76-83.
Lasers in Surgery and Medicine--Marleen Keijzer, MSc, Steven L. Jacques, PhD, Scott A. Prahl, PhD, and Ashley J. Welch, PhD--Light Distributions in Artery Tissue: Monte Carlo Simulations for Finite-Diameter Laser Beams--1989--9:148-154.
Science--Huang et al.--Optical Coherence Tomography--Nov. 22, 1991, vol. 254, pp. 1178-1181.
Lasers in Surgery and Medicine--Robert Splinter et al.--Optical Properties of Normal, Diseased and Laser Photocoagulated Myocardium at the Nd: YAG Wavelength--1991--11:117-124.
Med. Phys. 19 (4)--Thomas J. Farrell, Michael S. Patterson, and Brian Wilson--A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo--Jul./Aug. 1992--pp. 879-888.
Lasers in the Life Sciences 6(1), Robert Splinter et al.--Monitoring Tissue Optical Characteristics in-situ Using a CCD Camera--1994--pp. 15-25.
Biomechanics, Rehabilitation, Electrical Phenomena, Biomaterials (Part 3 of 3)--Scott Shukes et al.--Exploring the Optical Window of Myocardial Tissue for Localized Laser Ablation of Ventricular Tachycardia--Oct. 28-31, 1993--pp. 1602-1603.
Lasers in Medical Science--Robert Splinter et al.--Computer Simulated Light Distributions in Myocardial Tissues at the Nd-YAG Wavelength of 1064 nm--1993--8:15-21.
Applied Optics--Robert Splinter et al.--Myocardial temperature distribution under cw Nd:YAG laser irradiation in in vitro and in vivo situations: theory and experiment--Jan. 20, 1995--vol. 34 No. 3, pp. 391-399.
Progress in Biomedical Optics--Scott Shukes et al.--Proceedings of Biomedical Optoelectronic Instrumentation--Feb. 7-9, 1995, vol. 2396 pp. 151-156.
Lasers in Surgery and Medicine--Norman S. Nishloka, MD--Applications of Lasers in Gastroenterology--May 3, 1995, 16:205-214.
Presentation SPIE--The International Society for Optical Engineering--Scott Shukes et al.--Feb. 7, 1995.
SPIE--The International Society for Optical Engineering--Robert Splinter et al.--Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VI--Jan. 27-30, 1996--vol. 2671 pp. 125-131.
SPIE--The International Society for Optical Engineering--Robert Splinter et al.--CIS Selected Papers, Coherence-Domain Methods in Biomedical Optics--Aug. '96--vol. 2732, pp. 242-250.
Farahi Faramarz
Raja Mohammad Yasin Akhtar
Splinter Robert
Charlotte-Mecklenburg Hospital Authority
Kim Robert
University of North Carolina
LandOfFree
Fiberoptic interferometer and associated method for analyzing ti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiberoptic interferometer and associated method for analyzing ti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiberoptic interferometer and associated method for analyzing ti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-903309