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Gas flow reversing element with bypass and method for controlling expiration of a patient

A technology of reversing components and bypass tubes, which is applied in the direction of respirators, medical devices, and other medical devices, and can solve problems such as blockage of air flow reversing components and failure to guarantee patients to provide predetermined volumes and concentrations

Active Publication Date: 2016-03-09
VENTINOVA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a risk that the flow reversing element will become clogged with liquid blocked by condensation of the suction flow
In addition, it cannot guarantee that predetermined amounts and concentrations of drugs and / or anesthetics will be delivered to patients

Method used

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  • Gas flow reversing element with bypass and method for controlling expiration of a patient
  • Gas flow reversing element with bypass and method for controlling expiration of a patient
  • Gas flow reversing element with bypass and method for controlling expiration of a patient

Examples

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Embodiment Construction

[0086] figure 1 A longitudinal section through the air flow reversing element 1 with the main part 2 connecting the pressure connection 4 to the outlet opening 5 is shown. The pressure connection 4 can be connected via a connecting pipe 13 to a gas source 14 in a compressed gas source 11 , which is under excess pressure. Compressed oxygen tanks are generally manufactured for use in emergency patient care. Additionally, complex gas mixtures may be provided as gas source 14 . The part extending from the main part 2 is a branch part 3 which leads to a pipe connection 6 . In the main part 2 , an inflow area 9 , a flow area 28 , a nozzle area 15 with nozzles 7 and a mixing area 16 with mixing channels 17 are realized. Inside the nozzle zone 15 there are nozzles 7 through which gas can flow from the pressure connection 4 to the outlet opening 5 . This nozzle 7 is located near the branch 3 so that the gas flowing through the nozzle 7 to the outlet hole 5 creates an underpressure ...

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Abstract

Gas flow reversing element (1) for the use of a gas supply (14) under excess pressure, in particular inspiratory gases, for selectively generating a gas flow (8) from or to a line connector (6) which can in particular be connected to an airway of a patient, said gas flow reversing element (1) being designed as a main piece (2), the main piece (2) at least comprising an inflow region (9), a nozzle region (15) and a mixing region (16), and further a branching piece (3), the inflow region (9) connecting a pressure connector (4), for connection to the gas supply (14), to at least one closable outlet opening (5) arranged in the mixing region (16), and the branching piece (3) connecting the nozzle region (15) of the main piece (2) to the line connector (6), wherein a nozzle (7), particularly an injector nozzle, is configured and arranged in the nozzle region (15) in such a way that, a gas flow (8) flowing along a first flow path (20) through the main piece (2) from the pressure connector (4) subsequently through the inflow region (9), the flow region (28), the nozzle region (15) and through the nozzle (7) into the mixing region (16) to the outlet opening (5), with the outlet opening (5) opened, can generate a gas flow (8) in the branching piece (3) flowing along a second flow path (21) from the line connector (6) and subsequently through the branching piece (3), through the nozzle region (15) and through the mixing region (16) to the outlet opening (5), wherein the gas flow reversing element (1) further comprises a bypass (18) connecting the pressure connector (4) and the line connector (6) so that a gas flow (8) can flow along a third flow path (22) via the inflow region (9), the bypass (18) and the branching piece (3), wherein at least the bypass (18) and the flow region (28) are closable by at least one closing element (19), so that the gas flow (8) can bypass the nozzle (7) in the nozzle region (15) via the bypass (18) along the third flow path (22). The invention further relates to method for controlling expiration of a patient.

Description

technical field [0001] The invention relates to a gas flow reversing element and a method for operating it in order to generate a gas flow selectively from or to a fitting for gas exchange in a closed or partially closed (local) area of ​​a patient's airway. The invention further relates to a method for ventilation of a patient via a gas flow reversing element. The invention also relates to a method of controlling a patient's exhalation. One use involves connecting such a flow diverting element to one lumen (such as a catheter or needle) that can be inserted into the patient's airway, or to multiple lumens connected sequentially and / or in parallel (bronchoscope, bronchial blocker tube, laryngeal mirror, etc.). Background technique [0002] To ventilate the patient, a mask or tube is usually used, by means of which a gas or a gas mixture, in particular oxygen and air, is delivered at low pressure from the outside to the unsealed airway. Alternatively, however, this type of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00A61M16/12
CPCA61M16/0096A61M16/0434A61M16/1075A61M16/12A61M16/14A61M16/16A61M2016/0027A61M2202/0208A61M2230/432A61M16/0833A61M16/0012A61M16/085A61M16/201A61M16/0063A61M16/022A61M16/00A61M16/0009A61M16/0057A61M16/0816
Inventor D·恩克D·T·A·范阿塞尔东克
Owner VENTINOVA TECH
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