JP2001353223A - Oxygen supply quantity meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for restoring supply of oxygen besides suggesting supply stopping of the oxygen by a warning when the oxygen cannot be supplied by a malfunction of a flowmeter in the flowmeter conventionally used for an oxygen supply system for preserving life such as an artificial respiratory apparatus. SOLUTION: A solenoid valve 5 for closing at current-carrying time and opening at current-uncarried time and the flowmeter 6 capable of outputting a measured value by an electric signal by measuring a flow rate of the oxygen are parallelly connected, the flow rate of the oxygen is calculated on the basis of an electric signal outputted from an output means of the flowmeter 6, required information in these calculated information is selected by a changeover switch 10, and is displayed by a display means 8, and when the supply of the oxygen is stopped due to the malfunction in the flowmeter 6, output of the flowmeter 6 is stopped, a power source to the solenoid valve 5 parallelly connected to the flowmeter 6 controlled by an information processing means is cut off, the valve is opened, the oxygen can be supplied instead of the flowmeter 6, and a supply quantity of oxygen is measured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is used for a patient requiring oxygen, such as a ventilator, and provided with a connecting means provided on a supply pipe provided from an oxygen cylinder and an oxygen humidifier provided immediately before oxygen is supplied to the patient. The present invention relates to a flow meter that is worn between a patient and a device and measures the flow rate of oxygen supplied to a patient.

[0002]

2. Description of the Related Art Conventionally, oxygen supplied to a patient is provided between a connecting means provided on a supply pipe provided from an oxygen cylinder and an oxygen humidifier provided immediately before oxygen is supplied to the patient. Although there was a flow meter that measures the flow rate of oxygen, there are few medical facilities that use the flow meter for oxygen that is alive or dead. There was no.

[0003]

In recent years, the Ministry of Health and Welfare has been instructed to charge medical expenses according to the amount of oxygen used.
Medical facilities that install oxygen flow meters have increased, and flow meters have been installed.However, flow meters are flow meters for oxygen-supplying systems, such as artificial respirators, that are life-threatening. When the supply of oxygen becomes impossible, there is no device that only returns a signal indicating the stop of the supply of oxygen with an alarm, and there is no device for returning the supply of oxygen.

[0004]

A measuring instrument mounted between an outlet provided in a pipe provided from an oxygen cylinder and an oxygen humidifier for measuring the supply amount of oxygen, wherein the measuring device is provided with an outlet. A connecting joint, which is a connecting means, is connected in parallel with an electromagnetic valve that closes when energized and opens when non-energized, measures the flow rate of oxygen, and inputs the measured value in a flow meter that can output the measured value as an electric signal. The output port of the flow meter and the output port of the electromagnetic valve are connected in parallel to an outlet for oxygen provided from the present apparatus to another apparatus, and based on an electric signal output from the output means of the flow meter, The flow rate of oxygen flowing in the set unit time is calculated in the designated unit, and based on the calculated information, at least the flow rate per hour and the flow rate per day are calculated by the information processing means. When displayed on display means If the supply of oxygen caused a problem with the flow meter is stopped, the solenoid valve connected in parallel to the flow meter can supply oxygen becomes open.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an oxygen supply meter according to the present invention; FIG. In these figures, reference numeral 1 denotes an outlet A which is an oxygen supply port connected to a pipe provided from an oxygen cylinder, and 2 denotes a connection joint. 3 is an L-shaped joint. Reference numeral 4 denotes a T-shaped joint, and reference numeral 5 denotes a solenoid valve.
6 is an oxygen flow meter, 7 is information processing means, 8
Is information display means. 9 is a power switch, and 1
Reference numeral 0 denotes a changeover switch for information displayed on the display means 8. Reference numeral 11 denotes an oxygen outlet B, and reference numeral 12 denotes a housing of the apparatus.

The details of the oxygen supply meter according to the present invention and an embodiment thereof will be described. A connection joint 2 which is a means for connecting an outlet A1 provided in a pipe provided from an oxygen cylinder is described.
, An L-shaped joint 3 is connected, a T-shaped joint 4 is connected to the L-shaped joint 3, and the T is connected to the joint 4 by an input port of an electromagnetic valve 5 which is closed when energized and opened when not energized, An input port of a flow meter 6 capable of measuring a flow rate and outputting the measured value as an electric signal is connected, and an output port of the flow meter 6 is connected to an output port of a T-shaped joint 4, an output port of the electromagnetic valve 5, and an L-shaped joint. And the L-shaped joint 3 is connected to an outlet B for oxygen supplied from the present apparatus to another apparatus.
11 are connected, and all of them are stored in the housing 12.

Based on the electric signal output from the output means of the flow meter 6, the flow rate of oxygen flowing in a predetermined unit, for example, one minute is calculated in a specified unit, for example, liter, and based on the calculated information. Then, at least the flow rate per hour and the flow rate per day are calculated by the information processing means 7, and the necessary information is selected from the calculated information by the changeover switch 10 and displayed on the display means 8.

When the flow meter 6 fails and the supply of oxygen is stopped, the L-shaped joint 3 and the T-shaped joint 4
The output of the connected flow meter 6 is stopped, the power to the electromagnetic valve 5 connected in parallel with the flow meter 6 controlled by the information processing means is cut off, the valve is opened, and the flow meter 6 is opened. Instead, oxygen can be supplied. As described above, by using the flow meter of the present invention in an oxygen supply system, the amount of oxygen used by a patient can be safely and reliably measured.

[0009]

The present invention is a flow meter used in a life-threatening oxygen supply system such as an artificial respirator, and can constantly measure the flow rate of oxygen supplied to a patient and measure the amount of supplied oxygen. In addition, by using a flow meter of oxygen that has not been used in the past for the oxygen supply system, when a failure occurs in the flow meter and the supply of oxygen is stopped, the flow rate to the electromagnetic valve connected in parallel with the flow meter is reduced. The power is shut off and the valve is opened, allowing oxygen to be supplied instead of the flow meter.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an oxygen supply amount meter.

[Description of Signs] 1 is an outlet A 2 is a connection joint 3 is an L-shaped joint 4 T-type joint A 5 is an electromagnetic valve 6 is a flow meter 7 is an information processing means 8 is a display means 9 is a power switch 10 is a changeover switch 11 is Outlet B12 is a housing

Claims (1)

[Claims] According to the present invention, in an apparatus for supplying oxygen to a patient, the apparatus is mounted between an outlet provided in a pipe provided from an oxygen cylinder and an oxygen humidifier, and measures an oxygen supply amount. A measuring instrument, a connecting joint which is a connecting means of the outlet, a solenoid valve which is closed when energized and opened when not energized, and a flow meter capable of measuring the flow rate of oxygen and outputting the measured value as an electric signal Are connected in parallel, the output port of the flow meter and the output port of the solenoid valve are connected in parallel to an oxygen outlet provided from the present apparatus to another apparatus, and from the output means of the flow meter. Based on the output electric signal, the flow rate of oxygen flowing in a predetermined unit time is calculated in a specified unit, and based on the calculated information, at least the flow rate per hour and the flow rate per day are processed. Means to calculate these information Displaying the display means, and when the supply of oxygen is stopped due to a failure of the flow meter, the electromagnetic valve connected in parallel with the flow meter is opened to supply oxygen. vessel.