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:
Sep. 16, 2025

Filed:

Sep. 10, 2020
Applicant:

Acist Medical Systems Inc., Eden Prairie, MN (US);

Inventors:

Zvonimir Batarilo, Lausanne, CH;

Dieter Heidmann, Geretsried, DE;

Jan Sievertsen, Munich, DE;

Assignee:

ACIST MEDICAL SYSTEMS INC., Eden Prairie, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/145 (2006.01); A61M 5/00 (2006.01); A61M 5/142 (2006.01); A61M 5/168 (2006.01);
U.S. Cl.
CPC ...
A61M 5/14216 (2013.01); A61M 5/007 (2013.01); A61M 5/145 (2013.01); A61M 5/16804 (2013.01);
Abstract

A fluid delivery system is disclosed which comprises at least one supply station for supplying at least one fluid, a pressurizing unit for pressurizing said at least one fluid, an inlet fluid circuit in fluid communication with said at least one supply station and with a pump module of said pressurizing unit and an outlet fluid circuit in fluid communication with said pump module for discharging the fluid from the chamber. The chamber is provided with a piston reciprocating therein, thereby defining first and second variable-volume sub-chambers. The fluid delivery system further comprises a recirculation fluid circuit fluidically connecting said first and second variable-volume sub-chambers, and an actuator associated to said recirculation fluid circuit for managing the passage of said at least one fluid between said first and second variable-volume sub-chambers in both directions. A method of operating the fluid delivery system is also disclosed.


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