Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2005-11-03
2010-02-02
Schaetzle, Kennedy J (Department: 3766)
Surgery
Diagnostic testing
Cardiovascular
C600S526000
Reexamination Certificate
active
07657306
ABSTRACT:
A method of and a device for non-invasively measuring the hemodynamic state of a subject or a human patient involve steps and units of non-invasively measuring cardiac cycle period, electrical-mechanical interval, mean arterial pressure, and ejection interval and converting the measured electrical-mechanical interval, mean arterial pressure and ejection interval into the cardiac parameters such as Preload, Afterload and Contractility, which are the common cardiac parameters used by an anesthesiologist. The converted hemodynamic state of a patient is displayed on a screen as a three-dimensional vector with each of its three coordinates respectively representing Preload, Afterload and Contractility. Therefore, a medical practitioner looks at the screen and quickly obtains the important and necessary information.
REFERENCES:
patent: 4203451 (1980-05-01), Panico
patent: 4677984 (1987-07-01), Sramek
patent: 4960128 (1990-10-01), Gordon et al.
patent: 5103828 (1992-04-01), Sramek
patent: 5181517 (1993-01-01), Hickey
patent: 5211177 (1993-05-01), Chesney et al.
patent: 5309917 (1994-05-01), Wang et al.
patent: 5368040 (1994-11-01), Carney
patent: 5497778 (1996-03-01), Hon
patent: 6090047 (2000-07-01), Kass et al.
patent: 6440078 (2002-08-01), Curiel et al.
patent: 6471646 (2002-10-01), Thede
patent: 6939303 (2005-09-01), Curiel
patent: 6994675 (2006-02-01), Sharrock
patent: 7054679 (2006-05-01), Hirsh
patent: 2006/0167363 (2006-07-01), Osypka et al.
patent: WO 92 06633 (1992-04-01), None
patent: WO 92/11805 (1992-07-01), None
Nakagaware et al., “A portable instrument for non-invasive monitoring of beat-by-beat cardiovascular haemodynamic parameters based on the volume-compensation and electrical-admittance method”Medical and Biological Engineering and Computing, vol. 38, No. 1, Jan. 2000.
Sramek, B.B., “Physiologic Chart for Rapid Identification of Causes of Abnormal Haemodynamics”,Annals of the Academy of Medicine, vol. 23, No. 6, Nov. 1, 1994 pp. 26-32.
Huemer, et al., “Influence of positive end-expiratory pressure on right and left ventricular performance assessed by Doppler two-dimensional echocardiography”,Chest, vol. 106, No. 1, Jul. 1004, pp. 67-73.
Harada et al., “Principle of a noninvasive method of measuring maximum pressure change with respect to time of the left ventricle theory and experiments”,Heart and Vessels, vol. 3, No. 1, 1987, pp. 25-32.
Campbell et al., “A comparison of cardiac rate-pressure product and pressure-rate quotient with Holter monitoring in patients with hypertension and cardiovascular disease: a follow-up report”Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics, vol. 84, No. 2, Aug. 1997, pp. 125-128.
Minerva Anestesiologiica, Italy, Jun. 1990, vol. 56, No. 6, pp. 199-205.
Adler et al., “Time to dp/dt/sub/max reflects both inotropic and chronotropic properties of cardiac contraction: a conscious dog study”Physiological Measurement, Nov. 1996, vol. 17, No. 4, pp. 2878-295.
Welham et al., The first derivative of the transthoracic electrical impedance as as index of changes in myocardial contractility in the intact anaesthetized dogIntensive Care Medicine, vol. 4, No. 1, Jan. 1978, p. 44.
Klein, G., M.D.; Emmerich, M., M.D.; Clinical Evaluation of Non-invasive Monitoring Aortic Blood Flow, (ABF) by a Transesophageal Echo-Doppler-Device; Anesthesiology 1998; V89 No. 3A: A953.
Wallace, A.W., M.D., PhD, et al.; Endothracheal Cardiac output Monitor; Anesthesiology 2000;V92; pp. 178-189.
Braunwald, E. M.D., ed.; Heart Disease, A Textbook of Cardiovascular Medicine; Fourth Edition; Philadelphia, W.B. Saunders Company; 1992; p. 420.
Braunwald, E. M.D., ed.; Heart Disease, A Textbook of Cardiovascular Medicine; Fourth Edition; Philadelphia, W.B. Saunders Company; 1992; p. 431.
Connors, A.F. Jr., M.D.,et al.; The Effectiveness of Right Heart Catherization in the Initial Care of the Critically III Patients; J. Amer. Med. Assn., 1996; 276:889-897.
Dalen, J.E. Bone R.C.: Is It Time to Pull the Pulmonary Catheter? J. Amer. Med. Assn., 1996; 276:916-8.
European Patent Office Extended Search Report dated Jun. 20, 2008 for related EP Application No. 08100922.7.
Christine Berton and Bernard Cholley: “Equipment review: New techniques for cardiac output measurement oesophageal Doppler, Fick principle using carbon dioxide, and pulse contour analysis”, Critical Care, Biomed Central Ltd., London, GB, vol. 6., No. 3, Apr. 25, 2002, pp. 216-221.
Hett D. A. et al., “Non-invasive cardiac output monitoring”, Current Anesthesia and Critical Care, Churchill Livingstone, London, GB, vol. 14, No. 4, Aug. 1, 2003, pp. 187-191.
English Translation of JP Office Action dated Dec. 12, 2008 for related JP Application No. 2003-539529.
Yoshizawa et al., “A Noninvasive Estimation Tool for Cardiac Function (Emax PVA)”, Anthology of papers regarding Bionics and Physiology Symposium, Japan, Oct. 13, 2000, 15th, pp. 189-192.
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Schaetzle Kennedy J
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