Fluid flow control system with integrated manual fluid flow controls and method thereof

Abstract

The present invention discloses a fluid flow control system and method thereof. The fluid flow control system comprises a first flow selector used to select a flow rate of a first fluid; a first encoder configured to electronically encode the selection made via the first flow selector; a first controller configured to transmit a control signal to a first electronic flow control valve to cause the first electronic flow control valve to allow the first fluid to flow at the selected flow rate; and a first engagement device configured to engage the first flow selector with a first mechanical flow control valve when at least one of the first encoder and the first controller is in a manual mode, such that the first flow selector is operable to manually control the flow of the fluid through the first mechanical flow control valve. The fluid flow control system of the present invention is higher in usability.

Description

technical field [0001] The invention relates to a flow control system and a flow control method, in particular to a flow control system and method with a mechanical standby flow control function applicable to a medical anesthesia breathing system. Background technique [0002] Anesthesia machines must accurately and reliably control patient ventilation. In the existing anesthetic gas delivery system, doctors can control the flow of fresh gases such as oxygen, nitrous oxide and air through electronic control or mechanical control in different situations. Mechanical control usually relies on a mechanical knob needle valve to adjust the ventilation volume. The electronic control type usually uses a fully electronic flowmeter, which can be controlled by the system automatically by setting a specific value. The all-electronic flowmeter makes the gas flow control of the anesthesia machine more accurate and convenient, and the friendly operation interface is also widely welcomed ...

AI Technical Summary

Problems solved by technology

However, the existing mechanical control module used as a backup is completely separated from the electronic flow control system, resulting in many buttons or operating parts on the operation control panel of the anesthesia machine, which is inconvenient for doctors to operate and may cause unnecessary errors to a certain extent. operate

In addition, the existing backup mechanical needle valve is only used to control the flow of oxygen

Therefore, the ease of use of the flow control operation of the anesthesia machine in the prior art needs to be improved.

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