US 11,998,689 B2Granted

Enhanced performance verification port for therapeutic gas delivery

AssigneeMallinckrodt Pharmaceuticals Ireland Limited

InventorsJaron M. Acker, John C. Falligant, Jeff Milsap, Robin Roehl, Jeffrey Schmidt, Craig R. Tolmie

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Abstract

Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display.

Claims21

Dependent claims

A therapeutic gas delivery system for confirming the proper functioning of gas delivery and injection module operation, comprising:

an inlet port;
a low pressure outlet port in fluid communication with the inlet port;
an injection module operable to be received at the low pressure outlet port;
a low pressure gas supply operable to provide a flow of breathing gas at the inlet port, wherein the flow of breathing gas is at a breathing gas flow rate;
a low pressure delivery flow sensor and a low pressure confirmatory flow sensor operable to measure the breathing gas flow rate from the low pressure gas supply, wherein the low pressure delivery flow sensor and the low pressure confirmatory flow sensor are in fluid communication with the inlet port and the low pressure outlet port;
an injector module having an injection module delivery flow sensor and an injection module confirmatory flow sensor operable to measure the breathing gas flow rate from the low pressure gas supply, wherein the injection module delivery flow sensor and the injection module confirmatory flow sensor are in fluid communication with the low pressure outlet port;
and
a controller operable to determine if one of the measured breathing gas flow rates differs from any one of the other measured breathing gas flow rates by greater than a threshold amount, wherein the flow rate is measured at two or more of the low pressure confirmatory flow sensor, the low pressure delivery flow sensor, the injection module confirmatory flow sensor, and/or the injection module delivery flow sensor.

5 more elements

A therapeutic gas delivery system comprising:

a gas source coupling operable to mate to a therapeutic gas source;
a gas delivery subsystem comprising one or more flow control channels having at least one shut off valve, at least one delivery flow sensor, and at least one confirmatory flow sensor;
a shut off operable to open to deliver a flow of therapeutic gas from a gas supply subsystem to the gas delivery subsystem to purge the gas supply subsystem and the at least one of the one or more flow control channels;
a connection valve and a shut off, wherein the gas supply subsystem is operable to be pressurized at least between the connection valve and the closed shut off to a pressure above atmospheric pressure;
a gas pressure sensor operable to monitor the pressure between the connection valve and the closed shut off valve for a predetermined time period;
and
a controller operable to present an alarm if the pressure between the connection valve and the closed shut off valve decreases or increases more than an expected amount over the predetermined time period.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/525,349Filed 12 Nov 2021 · continuation
Priority: 9 May 2014
Published: US 2022/0072247 A110 Mar 2022
Granted: 4 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification39 codes

A61M 16/0051
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: with alarm devices
A61M 16/024
Control means therefor: including calculation means, e.g. using a processor
A61M 16/1005
Preparation of respiratory gases or vapours: with O2 features or with parameter measurement
A61M 16/12
Preparation of respiratory gases or vapours: by mixing different gases

Family

Application61/991,032Us provisional application · filed 9 May 2014
Application61/991,083Us provisional application · filed 9 May 2014
Application61/991,028Us provisional application · filed 9 May 2014
Application14/709,308Parent of this division · filed 11 May 2015
Application16/704,530Parent of this continuation · filed 5 Dec 2019
US 10,543,325 B2Parent of this division · filed 28 Jan 2020
US 2022/0072247 A1Pre-grant publication · published 10 Mar 2022
US 11,202,873 B2Parent of this continuation
Application16/704,530Parent of this division
US 2015/0320952 A1Published application
US 2020/0108214 A1Published application
US 11,998,689 B2This patent

From the US filing history. Foreign family members aren’t listed.

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