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.

Date of Patent:
Apr. 25, 2023

Filed:

Dec. 31, 2019
Applicant:

Nuwellis, Inc., Eden Prairie, MN (US);

Inventors:

David Lerner, St. Paul, MN (US);

David Haskvitz, Maple Grove, MN (US);

Dori Jones, Riverside, CT (US);

Assignee:

Nuwellis, Inc., Eden Prairie, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/36 (2006.01); A61M 1/34 (2006.01); A61M 60/109 (2021.01); A61M 60/531 (2021.01); A61M 60/546 (2021.01); A61M 60/845 (2021.01); A61M 25/02 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3609 (2014.02); A61M 1/3403 (2014.02); A61M 1/3431 (2014.02); A61M 1/3496 (2013.01); A61M 1/3633 (2013.01); A61M 1/3639 (2013.01); A61M 25/02 (2013.01); A61M 60/109 (2021.01); A61M 60/531 (2021.01); A61M 60/546 (2021.01); A61M 60/845 (2021.01); A61M 2025/0206 (2013.01); A61M 2025/0253 (2013.01); A61M 2205/02 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/3365 (2013.01); A61M 2210/083 (2013.01); A61M 2230/207 (2013.01); A61M 2230/30 (2013.01);
Abstract

A blood filtration system can reduce the amount of plasma constituents (e.g., water and/or electrolytes) in the blood of the patient, and accordingly increase the hematocrit value of the patient. The blood filtration system (e.g., a controller, or the like) can determine a hematocrit value of a patient. The blood filtration system can determine a venous pressure of vasculature of a patient. The blood filtration system can compensate for pressure head in a component of a blood circuit (e.g., a withdrawal line of a catheter), for example to improve the accuracy of the venous pressure determination. The blood filtration system can determine one or more resistance characteristics of a blood circuit for the blood filtration system. The resistance characteristics can correspond to a resistance to a flow of blood through a component of the blood circuit.


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