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Mass exchange device and method of use thereof

A technology of mass exchangers and channels, applied in chemical instruments and methods, other medical devices, membranes, etc., can solve the problems of required material consumption, accumulation of undesirable substances, etc., and reduce the tendency of hemolysis, stress, and blood clots risk effect

Active Publication Date: 2020-11-17
黑梅尔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patients undergoing CPB and ECMO often experience associated and concurrent health problems, which can lead to accumulation of undesirable substances in the blood and / or depletion of desired substances

Method used

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  • Mass exchange device and method of use thereof
  • Mass exchange device and method of use thereof
  • Mass exchange device and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] refer to figure 1 , the mass exchanger 10 includes a housing 11 and a plurality of tubular pipes 12 located in the housing 11 . Tubular conduits 12 are aligned in spaced relation to each other and are held in place by resin blocks 13a, 13b disposed within housing 11 at the upstream and downstream ends of the conduits. The resin block has free surfaces 13 a ′ and 13 b ′ oriented at an oblique angle to the pipe 12 .

[0059] The walls of the tubular conduit are permeable to gas and optionally ionic species (e.g., the walls can be provided by gas permeable but liquid impermeable materials such as polymethylpentene or polyphenylene ether. Alternatively, the walls can be micro Porous, and therefore permeable to small molecules, including gases, liquids, dissolved and ionic species). A mixing chamber 14 is disposed upstream of the tubular conduit 12 and is in fluid communication with the conduit. The mixing chamber 14 is arranged to receive gas flow from a gas inlet 16 and...

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PUM

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Abstract

A method of using a mass exchanger is described. In this method, the mass exchanger includes a first channel for containing the flow of the liquid to be treated; and a second channel for containing the flow of the treatment agent, the first and second channels have a movable A permeable membrane to allow transfer of selected species between the first channel and said second channel. The mass transfer method comprises the steps of passing a liquid to be treated along said first channel and introducing a mixture of liquid and gas into a second channel to provide a two-phase treatment agent. It would be desirable to provide a method of regulating the concentration of gaseous species in a liquid, such as blood, while controlling the temperature of the liquid and optionally regulating the concentration of ions and / or dissolved species in the liquid. With this approach and a mass exchanger providing a two-phase treatment agent, it is possible to simultaneously deliver a gaseous species (such as oxygen) into the treatment liquid while utilizing the high heat capacity of the liquid phase of the treatment agent to transfer significant heat to the treatment liquid in or from it.

Description

technical field [0001] The present invention relates to mass exchange devices and methods of use thereof, and more particularly to mass exchange devices for changing the composition and temperature of liquid samples. Background technique [0002] There are various situations in which the properties of blood (or blood products, such as stuffed cells) need to be changed. These conditions include blood transfusion, cardiopulmonary bypass (CPB), extracorporeal membrane oxygenation (ECMO), and renal dialysis. Properties that may change include: [0003] - Oxygen and carbon dioxide concentration (transfusion, CPB, ECMO) [0004] -Temperature (transfusion, CPB, ECMO) [0005] -Concentration of ions and dissolved substances (transfusion, renal dialysis, CPB, ECMO) [0006] These changes are currently being made in various stages. [0007] Regarding temperature changes, the transfused blood can be warmed to room temperature, or warmed with a blood warmer before administration to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/16B01D61/32B01D63/02B01D63/08
CPCA61M1/1631A61M1/1698B01D61/32A61M2205/36B01D2311/10B01D2313/221A61M1/3623B01D2311/1031B01D2315/22
Inventor W.R.约翰斯A.F.埃文斯R.K.奈特
Owner 黑梅尔有限公司
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