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Degassing system for dialysis

a dialysis and dialysis membrane technology, applied in liquid degasification, separation processes, other medical devices, etc., can solve the problems of reducing the diffusive clearance across the dialysis membrane, interfering with dialysate flow paths, and dangerous conditions

Inactive Publication Date: 2020-09-24
MOZARC MEDICAL US LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gas bubbles can interfere with the smooth pumping of dialysate in a dialysate loop and can interfere with sensors in the dialysate flow path and reduce diffusive clearance across the dialysis membrane.
Gas bubbles can also result in a dangerous condition if gas crosses the dialyzer membrane into an extracorporeal circuit and creates gas bubbles in blood returning to a patient.
Known systems suffer from excess foaming within the degassing vessel, which can reduce accuracy in measuring fluid levels and impede fluid flow through the degassing system.
The degassers known in the art oftentimes fail to efficiently remove dissolved gases, such as carbon dioxide, from fluid, or do not provide control over the amount of carbon dioxide removed.

Method used

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  • Degassing system for dialysis
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Embodiment Construction

[0051]Unless defined otherwise, all technical and scientific terms used herein generally have the same meaning as commonly understood by one of ordinary skill in the relevant art.

[0052]The articles “a” and “an” are used herein to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article. By way of example, “an element” means one element or more than one element.

[0053]The term “absolute pressure” refers to a pressure of a liquid, gas, or combination thereof, relative to a vacuum.

[0054]An “ambient pressure sensor” is a pressure sensor positioned to measure a pressure outside of a container, system, or fluid line, such as atmospheric pressure.

[0055]The term “bottom portion” refers to a portion of a component at a height lower than the center of the component when positioned for normal use.

[0056]A “capacitive sensor” is a sensor that measures distance to a conductive object by measuring changes in capacitance as the conductive object closer to or ...

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Abstract

The invention relates to a degassing vessel and related systems and methods that can remove certain gases such as carbon dioxide from a dialysis system with minimal foaming inside the degassing vessel. The invention further relates to mechanical systems and methods for degassing a dialysate or any fluid used for, during or resulting from dialysis.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation of U.S. patent application Ser. No. 15 / 885,738, filed Jan. 31, 2018, which is a Continuation-in-part of U.S. patent application Ser. No. 14 / 566,686 filed Dec. 10, 2014, now U.S. Pat. No. 9,713,665.[0002]This application also claims benefit of and priority to U.S. patent application Ser. No. 15 / 618,187 filed Jun. 9, 2017, which is a Continuation of U.S. patent application Ser. No. 14 / 566,686 filed Dec. 10, 2014, now U.S. Pat. No. 9,713,665, and the disclosures of each of the above-identified applications are hereby incorporated by reference in their entirety.FIELD OF THE INVENTION[0003]The invention relates to a degassing vessel and related systems and methods that can remove certain gases such as carbon dioxide from a dialysis system with minimal foaming inside the degassing vessel. The invention further relates to mechanical systems and methods for degassing a dialysate or any fluid used for, during or ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M1/16B01D19/00
CPCB01D19/0047A61M1/1658B01D19/0063A61M2202/0225B01D19/0036B01D19/0068A61M1/1696A61M2205/3382A61M2205/3386
Inventor MEYER, THOMAS E.SCHRNIDT, SAMUEL J.HAJKO, WILLIAM P.GOMES, CARL WILBERT
Owner MOZARC MEDICAL US LLC