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:
Jun. 13, 2023

Filed:

Aug. 17, 2020
Applicant:

Crisi Medical Systems, Inc., Franklin Lakes, NJ (US);

Inventor:

Shawn Wayne DeKalb, San Diego, CA (US);

Assignee:

CRISI Medical Systems, Inc., Franklin Lakes, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/66 (2022.01); G01F 1/56 (2006.01); G01F 15/14 (2006.01); G01F 15/18 (2006.01); A61M 5/168 (2006.01); G01F 15/00 (2006.01); A61M 5/172 (2006.01); A61M 39/02 (2006.01);
U.S. Cl.
CPC ...
G01F 1/56 (2013.01); A61M 5/16804 (2013.01); A61M 5/172 (2013.01); G01F 1/662 (2013.01); G01F 15/006 (2013.01); G01F 15/14 (2013.01); G01F 15/18 (2013.01); A61M 2039/0205 (2013.01); A61M 2205/12 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/6009 (2013.01); A61M 2205/6072 (2013.01);
Abstract

A flow sensor sub-assembly for sensing flow of a fluidic medicament includes a flow tube having a flow tube inlet and a flow tube outlet, and an acoustical transmission rate. The medicament flows through the flow tube. A first piezo element is arranged at an upstream position of the flow tube and a second piezo element is arranged at a downstream position of the flow tube, such that the first piezo element and the second piezo element are mounted apart a pre-selected distance from each other. An absorber sheath encircles the flow tube. The absorber sheath has an upstream end and a downstream end. The absorber sheath is comprised of a material with an acoustical transmission rate different than the flow tube.


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