The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 2006
Filed:
Sep. 21, 2001
Kevin R. Ward, Glenn Allen, VA (US);
Robert W. Barbee, Richmond, VA (US);
Rao R. Ivatury, Richmond, VA (US);
Bruce D. Spiess, Manakin-Sabot, VA (US);
James A. Arrowood, Richmond, VA (US);
Kevin R. Ward, Glenn Allen, VA (US);
Robert W. Barbee, Richmond, VA (US);
Rao R. Ivatury, Richmond, VA (US);
Bruce D. Spiess, Manakin-Sabot, VA (US);
James A. Arrowood, Richmond, VA (US);
Virginia Commonwealth University, Richmond, VA (US);
Abstract
Central Venous Pressure (CVP) is non-invasively determined with accuracy comparable to invasive measurement techniques. To do so, curves are plotted based on non-invasively determined patient information obtained by applying a controllable variable (pressure) to a vein of interest at a non-distal point and taking certain measurements (such as pressure and volume measurements) from the patient. An example of a controllable variable is voltage applied in incremental inflation/deflation of a vascular cuff (). A curve is plotted based on datapoints (such as a volume increase curve or a volume decline curve). Pertinent, accurate CVP and/or blood volume information is obtained from the slope of the non-invasive-based curve. Accurate CVP information is provided without the risks and disadvantages of invasive measurements.