Apparatus and method for determination of stroke volume...

Surgery – Diagnostic testing – Cardiovascular

Reexamination Certificate

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C600S500000, C600S501000, C600S504000, C600S513000, C600S536000

Reexamination Certificate

active

07740590

ABSTRACT:
Provided herein are methods and apparatus for stroke volume determination by bioimpedance from a patient's upper arm, or brachium, or a patient's thorax, utilizing pulsations of the arteries contained therein. The apparatus includes two or more spaced apart alternating current flow electrodes positioned on the patient's arm or thorax and two or more spaced apart voltage sensing electrodes positioned on the patient's arm or thorax and in-between alternating current flow electrodes. The system and method utilizes voltage sensed by the voltage sensing electrodes to calculate a cardiogenically induced impedance variation value of the patient, and to determine a stroke volume of the patient by multiplying the cardiogenically induced impedance variation value by a volume conductor VCand by a left ventricular ejection time TLVE.

REFERENCES:
patent: 3340867 (1967-09-01), Kubicek et al.
patent: 4450527 (1984-05-01), Sramek
patent: 4548211 (1985-10-01), Marks
patent: 4562843 (1986-01-01), Djordjevich et al.
patent: 4676253 (1987-06-01), Newman et al.
patent: 4807638 (1989-02-01), Sramek
patent: 4836214 (1989-06-01), Sramek
patent: 4953556 (1990-09-01), Evans
patent: 5103828 (1992-04-01), Sramek
patent: 5178154 (1993-01-01), Ackmann et al.
patent: 5309917 (1994-05-01), Wang et al.
patent: 5316004 (1994-05-01), Chesney et al.
patent: 5423326 (1995-06-01), Wang et al.
patent: 5469859 (1995-11-01), Tsoglin et al.
patent: 5503157 (1996-04-01), Sramek
patent: 5505209 (1996-04-01), Reining
patent: 5529072 (1996-06-01), Sramek
patent: 5685316 (1997-11-01), Schookin et al.
patent: 5782774 (1998-07-01), Shmulewitz
patent: 5791349 (1998-08-01), Shmulewitz
patent: 6016445 (2000-01-01), Baura
patent: 6058325 (2000-05-01), Baura
patent: 6095987 (2000-08-01), Shmulewitz et al.
patent: 6102869 (2000-08-01), Meier et al.
patent: 6161038 (2000-12-01), Schookin et al.
patent: 6186955 (2001-02-01), Baura
patent: 6511438 (2003-01-01), Bernstein et al.
patent: 6561986 (2003-05-01), Baura et al.
patent: 6602201 (2003-08-01), Hepp et al.
patent: 6636754 (2003-10-01), Baura et al.
patent: 6829501 (2004-12-01), Nielsen et al.
patent: 2002/0193689 (2002-12-01), Bernstein et al.
patent: 2003/0163058 (2003-08-01), Osypka et al.
patent: 1304074 (2003-04-01), None
Moshkovitz Y., et al., Recent Developments in Cardiac Output Determination by Bioimpedance: Comparison with Invasive Cardiac Output and Potential Cardiovascular Applications, Current Opinion in Cardiology, 2004, 19:229-237.
Wallace, Arthur W., et al., “Endotracheal Cardiac Output Monitor,” Anesthesiology, vol. 92, pp. 178-189, Jan. 2000.
International Search Report and Written Opinion for International Application No. PCT/US05/20420 mailed on Sep. 25, 2006.

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