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Flow indicator for oxygen addition to rebreathing systems

A flow indicator and indicator technology, applied in respirators, piston fluid pressure measurement, volume/mass flow generated by mechanical effects, etc.

Inactive Publication Date: 2021-02-02
MIROLA IP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in oxygen handling equipment used at the scene of an accident, there needs to be a clear signal to the patient that there is flow or no flow, and this indication must be easily visible to rescuers from wherever they may be

Method used

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  • Flow indicator for oxygen addition to rebreathing systems
  • Flow indicator for oxygen addition to rebreathing systems
  • Flow indicator for oxygen addition to rebreathing systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] exist figure 1 The flow indicator of the present invention when installed in the oxygen supply hose 21 is shown in cross-sectional view in .

[0046] In this example, the flow indicator housing 1 was fabricated and installed in the oxygen supply hose 21 by assembling only 10 different parts; i.e.

[0047] • A single flow channel housing 4, preferably made from one piece of transparent material, such as carbonate plastic;

[0048] Two end pieces, an upper end piece and a lower end piece, respectively 2 U and 2 L ; the end piece is threaded 42 U 、42 L with thread 41 on the flow path housing U 、41 L engagement to attach to the flow channel housing. End piece with upper hose connector 20 U and lower hose fitting 20 L into one.

[0049] Two standard O-ring seals5 U and 5 L , the two seals provide a pressure seal between the flow channels;

[0050] • The fixed cylindrical part 10 of the elongate flow indicator housing, in this embodiment made as a separate part. ...

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Abstract

The invention relates to a flow indicator preferably to be used in oxygen therapy treatment of patients where a clear flow or no flow state must be signaled for the supply of oxygen. According to theinventive flow indicator are two cylindrical bodies used, one (30) movable and one (10) stationary, and with one extended flow restriction passage (80) that forces the movable cylindrical body away from a sight glass (40), instead exposing the stationary cylindrical body. The viewable cylindrical part of the movable part may be colored red (R), and the viewable cylindrical part of the stationary body may be colored green (G). A flow indicator with quick and stable indication of developed flow is obtained.

Description

[0001] Background of the invention [0002] The present invention relates to a flow indicator that provides a breathing mask with a first visual signal that oxygen flow is established, or alternatively a different second visual signal that oxygen flow is not established. [0003] current technology [0004] Flow meters are used for rebreathing systems when proper formation of flow is important to critical functions to ensure proper oxygen therapy to the patient. Rebreathing systems and their accessories are classified in the Joint Patent Classification as A61M 16, "Devices for affecting the respiratory system of a patient by gas therapy...". [0005] In a hospital environment, it is most often necessary to monitor flow levels for controlling the proper concentration of oxygen in the respiratory system. Often, the oxygen supply is oversupplied and most of the oxygen given to the patient is wasted, but since the supply of oxygen is almost unlimited, this is less of a concern. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/10G01F1/28G01L7/16G01P13/00A61M16/00A61M16/22
CPCA61M16/1005A61M16/22A61M2202/0208A61M16/0866A61M16/0891A61M16/0045A61M2205/3334A61M2205/584A61M16/0003
Inventor 奥拉·特尔比
Owner MIROLA IP AB