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:
Aug. 27, 2019
Filed:
Dec. 09, 2014
Gambro Lundia Ab, Lund, SE;
Gambro Lundia AB, Lund, SE;
Abstract
An apparatus () is described for extracorporeal blood treatment, comprising a treatment unit (), an extracorporeal blood circuit () and a fluid evacuation line (). A venous chamber () is placed in a blood return line () and is arranged in use to contain a gas in an upper portion () and blood at a predetermined level in a lower portion. The apparatus () comprises a control unit () connected to a first pressure sensor () and configured to: receive from the first pressure sensor () a first signal (P()) relating to a time variable pressure (P(t)) of the blood flow; calculate a phase shift (θ) between the first signal (P()) and a reference signal (P()) correlated to the time variable pressure (P(t)) detected at a location distinct from the upper portion () of the chamber (); monitor the volume (V) of gas in the upper portion () of the chamber () through the phase shift (θ).