JPWO2018075723A5

JPWO2018075723A5 -

Info

Publication number: JPWO2018075723A5
Application number: JP2019543171A
Authority: JP
Publication date: 2022-08-18
Anticipated expiration: 2037-10-19

Description

好ましくは、ＬＥＤディスプレイ１０３は、流体の測定のためのしるし（例えば、リットル／分）と関連付けられた、列に並んでいる、複数のＬＥＤ光１０２を含む。好ましい実施形態では、しるしの範囲は、０～３０リットル／分である。一例では、流量が１５リットル／分である際、０～１５リットル／分の値と関連付けられたＬＥＤが照らされる。或いは、１５リットル／分の数値と関連付けられたＬＥＤのみが照らされる。さらに、例えば、ＬＣＤ（液晶ディスプレイ）スクリーン１１４上に、「１５」の数値のデジタル表示を表示することができる。 Preferably, the LED display 103 includes a plurality of LED lights 102, aligned in a line, associated with indicia (eg, liters/minute) for fluid measurement. In a preferred embodiment, the indicia range is 0-30 liters/minute. In one example, when the flow rate is 15 liters/minute, the LED associated with the value 0-15 liters/minute is illuminated. Alternatively, only the LEDs associated with the 15 liters/minute value are illuminated. Additionally, a digital representation of the number “15” can be displayed on, for example, an LCD (liquid crystal display) screen 114 .

Claims

An electronic flow meter for controlling therapeutic delivery of a gaseous fluid to a patient, comprising:
a body defining an interior;
a tube attached to and extending from the body;
an inlet port defined in the body and in communication with the interior;
an outlet port defined in said body, communicating with said interior, disposed perpendicular to said inlet port and axially aligned with said tube;
An electromechanical element within the body between the inlet port and the outlet port and selectively adjustable between open and closed positions for communication between the outlet port and the interior. a valve;
a flow sensor positioned at least partially within the tube and associated with the valve for sensing the flow rate of the gaseous fluid through the tube;
a digital indicator extending from the body along a portion of the tube, the digital indicator displaying the flow rate sensed by the flow sensor;
a microprocessor in electronic communication with the flow sensor and the digital indicator , the microprocessor receiving a flow signal from the flow sensor and outputting a corresponding control signal to the digital indicator, the microprocessor controlling the open position of the valve; and a microprocessor in electronic communication with the valve to control regulation between and the closed position.

The digital indicator is arrayed and spaced sequentially from the body along the portion of the tube and is associated with a predetermined flow level indicia and includes a plurality of LEDs, the LEDs 4. The electronic flow meter of claim 1, comprising a plurality of LEDs that are illuminated sequentially in proportion to the increase in flow sensed by the flow sensor.

The electronic flow meter of Claim 1, wherein said digital indicator comprises an LCD screen displaying a digital representation of said flow rate sensed by said flow sensor.

further comprising a regulator sensor determining a position of the valve between the open position and the closed position;
2. The electronic flow meter of claim 1, wherein said microprocessor is in electronic communication with said regulator sensor to monitor said position of said valve.

12. The microprocessor further communicates with the flow sensor and implements a feedback control scheme to control adjustment of the valve to achieve a predetermined flow rate while determining based on the flow sensor output. 2. The electronic flow meter of claim 1.

6. The electronic flow meter of Claim 5, further comprising an input device in communication with said microprocessor for user input of said predetermined flow rate.

further comprising an output device in communication with the microprocessor;
The electronic flow meter of any one of claims 4-6, wherein the microprocessor controls the output device to output an alarm if the flow rate is outside a predetermined range.

2. The electronic flow meter of claim 1, wherein the valve is included in an electronic regulator that maintains a predetermined flow rate of fluid between the inlet port and the outlet port,
An electronic flow meter, further comprising a touch screen in communication with the electronic regulator for one of entering or adjusting the predetermined flow rate.

9. The electronic flow meter of claim 8, further comprising a regulator sensor sensing a position of the electronic regulator within a range of positions between fully open and fully closed positions.

further comprising a microprocessor in electronic communication with the regulator sensor and the electronic regulator;
10. The electronic flow meter of claim 9, wherein said microprocessor receives a position signal from said regulator sensor indicative of said position of said electronic regulator.

11. The electronic flow meter of claim 10, wherein the microprocessor implements a feedback scheme to control the position of the electronic regulator using the position signal to achieve the predetermined flow rate.

The electronic flow meter of any one of claims 9-11, wherein the regulator sensor further senses at least one of oxygen concentration within the electronic regulator or fluid flow rate through the electronic regulator. ,
an output device in communication with the microprocessor;
An electronic flow meter, wherein the microprocessor controls an output device to output an alarm if one of the oxygen concentration or the flow rate is outside a predetermined range.

13. The electronic flow meter of any one of claims 1-12, wherein the entire exterior of the flow meter is treated with an antimicrobial agent.