Method and apparatus for determining cardiac performance in a patient with a conductance catheter

US8929976B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8929976-B2
Application numberUS-201113066201-A
CountryUS
Kind codeB2
Filing dateApr 8, 2011
Priority dateSep 9, 2003
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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Abstract

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An apparatus for determining cardiac performance in the patient. The apparatus includes a conductance catheter for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to identify mechanical strength of the chamber. The processor is in communication with the conductance catheter. Methods for determining cardiac performance in a patient. Apparatuses for determining cardiac performance in a patient.

First claim

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What is claimed is: 1. An apparatus for determining cardiac performance in a patient from a plurality of desired wave forms received from electrodes placed in the patient and in communication with a heart chamber of the patient comprising: a data acquisition mechanism for receiving and separating the plurality of desired wave forms at desired frequencies from the electrodes; and a computer for determining instantaneous volume of a ventricle of the heart chamber by applying a non…

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What does patent US8929976B2 cover?
An apparatus for determining cardiac performance in the patient. The apparatus includes a conductance catheter for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to …
Who is the assignee on this patent?
Feldman Marc D, Valvano Jonathan W, Pearce John A, and 2 more
What technology area does this patent fall under?
Primary CPC classification A61B5/0538. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).