Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2011-08-16
2011-08-16
Mehta, Parikha S (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S438000
Reexamination Certificate
active
07998075
ABSTRACT:
A non-invasive method for monitoring of cerebrovascular blood flow autoregulation state includes sensing intracranial blood volume waves, filtering a slow wave, respiratory wave, and pulse wave informative components from said intracranial blood volume waves, filtering slow wave and respiratory wave reference components from the pulse wave envelope, calculating a first phase shift between said slow wave informative component and said slow wave reference component, calculating a second phase shift between said respiratory wave informative component and said respiratory wave reference component, and calculating the index of evaluation of the status of cerebral autoregulation state (ICAS) from said first phase shift and said second phase shift.
REFERENCES:
patent: 5388583 (1995-02-01), Ragauskas et al.
patent: 6387051 (2002-05-01), Ragauskas et al.
patent: 1883383 (2006-12-01), None
patent: 2195860 (2003-01-01), None
patent: 2006050078 (2006-05-01), None
Fountas et al. Is non-invasive monitoring of intracranial pressure waveform analysis possible? Preliminary results of a comparative study of non-invasive vs. invasive intracranial slow-wave waveform analysis monitoring in patients with traumatic brain injury. Med. Sci Moni. Feb. 2005 11(2): CR58-63. Abstract only.
Schmidt, Bernhard, et al, “Adaptive Noninvasive Assessment of Intracranial Pressure and Cerebral Autoregulation” Journal of the American Heart Association, pp. 84-89, Dec. 12, 2002.
Panerai, Ronney B, “Assessment of cerebral pressure autoregulation in humans—a review of measurement methods” Physiol. Meas., pp. 305-338, 1998.
Aaslid, R., et al “Cerbral autoregulation dynamics in humans”, The Journal of the American Heart Association, pp. 45-52, 1989.
Ragauskas, A., et al, “Clincial study of continuous non-invasive cerebrovascular autoregulation monitoring in neurosurgical ICU” Acta Neurochir, pp. 367-370, 2005.
Czosnyka, Marek PhD, et al “Continuous Assessment of the Cerebral Vasomotor Reactivity in Head Injury” Neurosurgery Online, pp. 11-19, Jul. 1997.
Schondort, Ronald, et al, “Dynamic cerebral autoregulation is preserved in neurally mediated syncope” J Appl Physiol, pp. 2493-2502, 2001.
Panerai, Ronney B., et al, “Linear and nonlinear analysis of human dynamic cerebral autoregulation”, Am J Phsyiol Heart Circ, H1089-H1099, 1999.
Latka, Miroslaw, et al, “Phase dynamics in cerebral autoregulation” Am J Physiol Heart Circ, pp. H2272-H2279, 2005.
Paneria, Ronney B., et al, “Short-Term Variability of Cerebral Blood Flow Velocity Response to Arterial Blood Pressure Transients”, Ultrasound in Med. & Bio., pp. 31-38, 2003.
Ronney B Panerai: “Cerebral Autoregulation: From Models to Clinical Applications” Cardiovascular Engineering: An International Journal, Kluwer Academic Publishers—Plenum Publishers, NE, vol. 8, No. I, Nov. 28, 2007, pp. 42-59, XP019570714 ISSN: 1573-6806.
European Search Report; EP 09 15 8708; Aug. 12, 2009; 4 pages.
Daubaris Gediminas
Petkus Vytautas
Ragauskas Arminas
Raisutis Renaidas
Mehta Parikha S
St. Onge Steward Johnston & Reens LLC
UAB Vittamed Technologijos
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