Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2005-10-27
2011-11-22
Mehta, Parikha (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
Reexamination Certificate
active
08062224
ABSTRACT:
A non-invasive method for continuous real-time monitoring of cerebrovascular blood flow autoregulation state includes simultaneous non-invasive monitoring of intracranial blood volume respiratory waves and lung volume respiratory waves, real-time decomposition of intracranial blood volume respiratory waves and lung volume respiratory waves into narrowband sinewave first harmonic components, determination therefrom of the phase shift between intracranial blood volume respiratory wave and lung volume respiratory wave first harmonics' and derivation of cerebrovascular autoregulation state from that phase shift value.
REFERENCES:
patent: 3439530 (1969-04-01), Flaherty et al.
patent: 3713329 (1973-01-01), Munger
patent: 3818989 (1974-06-01), Christopher, Jr. et al.
patent: 3872858 (1975-03-01), Hudson et al.
patent: 4043321 (1977-08-01), Soldner et al.
patent: 4062354 (1977-12-01), Taylor et al.
patent: 4312361 (1982-01-01), Nicholson et al.
patent: 4610255 (1986-09-01), Shimura et al.
patent: 4690149 (1987-09-01), Ko
patent: 4819648 (1989-04-01), Ko
patent: 4893630 (1990-01-01), Bray, Jr.
patent: 4960118 (1990-10-01), Pennock
patent: 4971061 (1990-11-01), Kageyama et al.
patent: 4984567 (1991-01-01), Kageyama et al.
patent: 5074310 (1991-12-01), Mick
patent: 5117835 (1992-06-01), Mick
patent: 5379770 (1995-01-01), Van Veen
patent: 5388583 (1995-02-01), Ragauskas et al.
patent: 5411028 (1995-05-01), Bonnefous
patent: 5435312 (1995-07-01), Spivey et al.
patent: 5514146 (1996-05-01), Lam et al.
patent: 5617873 (1997-04-01), Yost et al.
patent: 5785656 (1998-07-01), Chiabrera et al.
patent: 5817018 (1998-10-01), Ohtomo
patent: 5840018 (1998-11-01), Michaeli
patent: 5842990 (1998-12-01), Kraske
patent: 5919144 (1999-07-01), Bridger et al.
patent: 5951476 (1999-09-01), Beach
patent: 5951477 (1999-09-01), Ragauskas et al.
patent: 5987351 (1999-11-01), Chance
patent: 6117089 (2000-09-01), Sinha
patent: 6875176 (2005-04-01), Mourad et al.
patent: 7198602 (2007-04-01), Eide
patent: 2002/0095087 (2002-07-01), Mourad et al.
patent: 2000262480 (2000-09-01), None
patent: 2002017686 (2002-01-01), None
patent: 2002017687 (2002-01-01), None
patent: 2002501774 (2002-01-01), None
patent: 9938433 (1999-08-01), None
Berger et al. Respiratory effects on arterial pressure: a novel signal analysis approach. IEEE Engineering in Medicine and Biology Society 10th Annual International Conference. 1988.
Panerai R B et al. Short-term variability of cerebral blood flow velocity responses to arterial blood pressure transients.Ultrasound in Med. &Biol., vol. 29, No. 1, pp. 31-38, 2003.
Aaslid R et al. Cerebral autoregulation dynamics in humans.Stroke1989;20:45-52.
Czosnyka M et al. Continuous assessment of the cerebral vasomotor reactivity in head injury.Neurosurgery1997;41:11-19.
Panerai R B. Assessment of cerebral pressure autoregulation in humans—a review of measurement methods.Physiol Meas1998;19:305-338.
Panerai R B et al. Linear and nonlinear analysis of human dynamic cerebral autoregulation.Am J Physiol1999a; 277:H1089-H1099.
Zhang R et al. Spontaneous fluctuations in cerebral blood flow: insights from extended-duration recordings in humans.Am J Physiol Circ Physiol278:H1848-H1855,2000; 0363-6135/00 S5.00, vol. 278, Issue 6, H1848-H1855, Jun. 2000.
Schmidt B et al. Adaptive noninvasive assessment of intracranial pressure and cerebral autoregulation. Stroke 2003;43:84-89, 2003.
Strik C et al. Intracranial oscillations of cerebrospinal fluid and blood flow: analysis with magnetic resonance imaging.Journal of magnetic resonance imaging15:251-258, 2002.
Schondorf R et al. Dynamic cerebral autoregulation is preserved in neurally mediated syncope.J Appl Physiol91:2493-2502, 2001.
Parati G et al. Spectral analysis of blood pressure and heart rate variability in evaluating cardiovascular regulation.Hypertension1995;25:1276-1286.
Ragauskas et al. Implementation of non-invasive brain physiological monitoring concepts.Medical Engineering&Physics25(2003) 667-678.
International Search Report & Written Opinion of the International Searching Authority, Apr. 11, 2007, 8 pages.
Lu, et al.; “Cerebral Autoregulation and Gas Exchange Studied Using a Human Cardiopulmonary Model”; Proceedings of the 25th Annual International Conference of the IEEE EMBS; Cancun, Mexico; Sep. 17-21, 2003; 2 pages.
Avezaat, et al.; “Cerebrospinal Fluid Pulse Pressure and Intracranial Volume-Pressure Relationships”; Jouranl of Neurology, Neurosurgery, and Psychiatry; (1979); pp. 687-700.
Extended European Search Report; EP 05 82 4125; Dec. 22, 2009; 7 pages.
Ragauskas, et al.; “Innovative Technologies of head Injury Physiological Monitoring”; ISSN 1392-2114 Ultragarsas, Nr4(37).; (2000); 8 pages.
Czosnyka, et al.; “Monitoring and Interpretation of Intracranial Pressure”; J Neural Neurosurg Psychiatry (2004); pp. 813-821.
Ragauskas, et al.; “Non-Invasive Technologies for Intracranial Pressure/Volume Measurement”; Proceedings—23rd Annual Conference—IEEE/EMBS Oct. 25-28, 2001; 4 pages.
Schmidt, et al.; “Noninvasive Prediction of Intracranial Pressure Curves Using Transcranial Doppler Ultrasonography and Blood Pressure Curves”; Stroke, American Heart Association, Inc.; http://stroke.ahajournals.org/cgi/content/full/28/12/2465; (1997); 16 pages.
Ragauskas, et al.; “Ultrasonic Non-invasive Intracranial Wave Monitor”; Telematics Scientific Lab, Kansas University of Technology, Lithuania; (2002); pp. 34-39.
K. 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. Monit. 11(2), CR58-63 (2005).
I. Chambers et al., The clinical application of non-invasive intracranial blood volume pulse wave monitoring, Physiol. Meas. 26 (2005) 1019-1032.
Diniz, P., Adaptive Filtering: Algorithms and Practical Implementation (Third Ed., Springer, 2008).
Winder, S., Analog and Digital Filter Design (Second Ed., Elsevier Science, 2002).
Daubaris Gediminas
Ragauskas Arminas
Mehta Parikha
St. Onge Steward Johnston & Reens LLC
UAB Vittamed
LandOfFree
Method and apparatus for non-invasive continuous monitoring... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for non-invasive continuous monitoring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for non-invasive continuous monitoring... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4281283