Apparatus and method for electronically predicting pleural pressure from pulse wave signals
AssigneesDenso Corporation, Toshiaki Shiomi
InventorsShinji Nanba, Rie Ohsaki, Toshiaki Shiomi
Life of this patent
Estimating the term…
Abstract
A pleural pressure is predicted from pleural pressure based upon pulse wave signals, which are continuously produced and picked up in a time sequential manner. A first variation signal indicative of a condition of a variation contained in the pulse wave signals is acquired based upon the pulse wave signals. A second variation signal representative of a condition of a variation contained in the first variation signal is acquired based upon the first variation signal. The pleural pressure is predicted based on a difference between the first variation signal and the second variation signal.
Claims26
A pressure predicting apparatus for predicting pleural or esophageal pressure based upon pulse wave signals which are continuously connected to each other in a time sequential manner, the apparatus comprising:
- first means for acquiring a first variation signal indicative of a condition of a variation contained in the pulse wave signals based upon the pulse wave signals;
- second means for acquiring a second variation signal representative of a condition of a variation contained in the first variation signal based upon the first variation signal;
- and
- prediction means for predicting a pleural pressure based on a difference between the first variation signal and the second variation signal.
A pressure predicting method for predicting pleural or esophageal pressure based upon pulse wave signals, which are continuously connected to each other in a time sequential manner, the method comprising steps of:
- acquiring a first variation signal indicative of a condition of a variation contained in pulse wave signals;
- acquiring a second variation signal representative of a condition of a variation contained in the first variation signal;
- and
- predicting a pleural pressure based on a difference between the first variation signal and the second variation signal.
Dependencies are inferred from the claim text.