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:
Sep. 05, 2000
Filed:
Aug. 10, 1999
Bennet P deBoisblanc, New Orleans, LA (US);
Royce W Johnson, Universal City, TX (US);
Andy Pellett, Metairie, LA (US);
Glenn B Bell, Ellicott City, MD (US);
Other;
Abstract
A medical device for estimation of pulmonary wedge pressure wherein a non-occluded pulmonary artery blood pressure measurement is utilized to directly estimate the pulmonary wedge pressure. A neural network is trained with occlusion-obtained data, whereafter the trained coefficients are utilized to implement the wedge pressure estimator. A flow-directed catheter is utilized to transduce the pressure waveform, which is then input to the processing computer through a analog-to-digital data acquisition board. The data is preprocessed in the computer in order to present the neural network with 11 samples of blood pressure data and 11 samples of time-correlated first derivatives of the blood pressure data as well as an indication of the length in time of the heartbeat. The trained neural network then directly outputs the estimated wedge pressure.