Optimized wavelength gap for improved StO2 measurement

Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07613489

ABSTRACT:
A method and system for producing improved more accurate measurements of oxyhemoglobin levels in tissue when measured using near infrared spectroscopy (NIRS). Light sources and processing methods are selected to such that the effects of a confounding chromophore in the tissue under study are minimized.

REFERENCES:
patent: 5879294 (1999-03-01), Anderson et al.
patent: 6377840 (2002-04-01), Gritsenko et al.
patent: 6473632 (2002-10-01), Myers
patent: 6481899 (2002-11-01), Quast et al.
patent: 6487343 (2002-11-01), Lewandowski et al.
patent: 6667803 (2003-12-01), Flessland et al.
patent: WO 00/77495 (2000-12-01), None
Jeon et al., Non-invasive total hemoglobin measurement, Jan. 2002, Journal of Biomedical Optics ,7(1), 45-50.
Cooper et al., “The Noninvasive Measurement of Absolute Cerebral Deoxyhemoglobin Concentration and Mean Optical Path Length in the Neonatal Brain by Second Derivative Near Infrared Spectroscopy”,Pediatric Research, Jan. 1996, pp. 32-38, vol. 39, No. 1.
Binzoni et al., “Energy Metabolism and Interstitial Fluid Displacement in Human Gastrocnemius During Short Ischemic Cycles”,Journal of Applied Physiology, Oct. 1998, pp. 1244-1251, vol. 85, No. 4, American Physiological Society, Bethesda, MD.
Chance et al., “Phase Measurement of Light Absorption and Scatter in Human Tissue”,Review of Scientific Instruments, Oct. 1998, pp. 3457-3481, vol. 69, No. 10, American Institute of Physics.
Colier et al., “A Comparative Study of Two Near Infrared Spectrophotometers for the Assessment of Cerebral Haemodynamics”,Oxygen, Carbon Dioxide, and Electrolytes in Critical Care: Proceedings of the Workshop on Oxygen, Carbon Dioxide, and Electrolytes in Critical Care held inCopenhagen, Denmark, Jan. 26-27, 1995, pp. 101-105, Acta Anaesthesiologica Scandinavica, Supplementum 107, vol. 39.
Cui et al., “Experimental Study of Migration Depth for the Photons Measured at Sample Surface”,SPIE, 1991, pp. 180-191, vol. 1431.
De Blasi et al., “Noninvasive Measurement of Forearm Blood Flow and Oxygen Consumption by Near-Infrared Spectroscopy”,Journal of Applied Physiology, Mar. 1994, pp. 1388-1393, vol. 76, No. 3, American Physiological Society, Bethesda, MD.
Delpy et al., “Quantification in Tissue Near-Infrared Spectroscopy”,Phil Trans R Soc Lond, B, 1997, pp. 649-659, vol. 352, The Royal Society.
Fantini et al., “Cerebral and Muscle Oxygen Saturation Measurement by Frequency-Domain Near-Infra-Red Spectrometer”,Medical&Biological Engineering&Computing, Mar. 1995, pp. 228-230, vol. 33, No. 2.
Ferrari et al., “Noninvasive Determination of Hemoglobin Saturation in Dogs by Derivative Near-Infrared Spectroscopy”,American Journal of Physiology, May 1989, pp. H1493-H1499, vol. 256, No. 5, Part 2, American Physiological Society, Bethesda, MD.
Franceschini et al., “Near-Infrared Absorption and Scattering Spectra of Tissues in Vivo”,Pro. SPIE, 1999, pp. 526-531, vol. 3597.
Hoofd et al., “A Modeling Investigation to the Possible Role of Myoglobin in Human Muscle in Near Infrared Spectroscopy (NIRS) Measrements”,Oxygen Transport to Tissue XXIV, 27th Annual meeting of the International Society on Oxygen Transport to Tissue (ISOTT), held at Dartmouth Medical School, Hanover, NH, Aug. 28-Sep. 2, 1999, pp. 637-643, © 2003, Plenum Publishers, New York.
Lefevre et al., “Determination of Plasma Protein-Bound Malondialdehyde by Derivative Spectrophotometry”,European Journal of Clinical Chemistry and Clinical Biochemistry, Aug. 1996, pp. 631-636, vol. 34, No. 8, Walter de Gruyter, Berlin, NY.
Matcher et al., “Performance Comparison of Several Published Tissue Near-Infrared Spectroscopy Algorithms”,Analytical Biochemistry, May 1995, pp. 54-68, vol. 227, No. 1, Academic Press, Inc., Harcourt Brace & Co., San Diego, New York, Boston, London, Sydney, Tokyo, Toronto.
Merrick et al., “Evaluation of Absorption and First- and Second-Derivative Spectra for Simultaneous Quantification of Bilirubin and Hemoglobin”,Clinical Chemistry, 1986, pp. 598-602, vol. 32, No. 4.
Punwani et al., “MRI Measurements of Cerebral Deoxyhaemoglobin Concentration [dHB]—Correlation With Near Infrared Spectroscopy (NIRS)”,NMR In Biomedicine, Oct. 1998, pp. 281-289, vol. 11, No. 6, John Wiley & Sons, Ltd.
Simpson et al., “Near-Infrared Optical Properties of Ex Vivo Human Skin and Subcutaneous Tissues Measured Using the Monte Carlo Inversion Technique”,Phys Med Biol, Sep. 1998, pp. 2465-2478, vol. 43, No. 9, IOP Publishing Ltd, UK.
Skov et al., “Estimation of Cerebral Venous Saturation in Newborn Infants by Near Infrared Spectroscopy”,Pediatric Research, 1993, pp. 52-55, vol. 38, No. 1.
Tuchin, “Optical Properties of Tissues with Strong (Multiple) Scattering”,Tissue Optics: Light Scattering Methods and Instruments for Medical Diagnosis, 2000, pp. 98-108, SPIE, USA.
Visser et al., “Density of Fat-Free Body Mass: Relationship with Race, Age, and Level of Body Fatness”,American Journal of Physiology, May 1997, pp. E781-E787, vol. 272, No. 5, Part 1, The American Physiological Society, Bethesda, MD.
Yoxall et al., “Measurement of Cerebral Venous Saturation By Near Infrared Absorption Spectroscopy”,Pediatric Research, Dec. 1994, p. 45 A (1 pg.), vol. 36, No. 6.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optimized wavelength gap for improved StO2 measurement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimized wavelength gap for improved StO2 measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimized wavelength gap for improved StO2 measurement will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4140799

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.