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US 2013/0152933 A1Published application
Automated fluid delivery system and method
AssigneeThe Regents of the University of California, a California corporation
InventorsDavid William Lischer, Stephen Winston Roberts
Life of this patent
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Abstract
An automated fluid delivery system and method are disclosed. The system includes distensible tubing, a flow controller, and a fluid flow adjustment module. The fluid flow adjustment module may be configured to detect differential pressure in the tubing and adjust the flow controller to provide an amount of fluid through the tubing during inhalation.
Claims17
A system of providing fluid to a user, comprising:
- distensible tubing;
- a flow controller coupled to the tubing and configured to control a flow of fluid through the tubing;
- and
- a fluid flow adjustment module connected to the tubing and the flow controller, the module being configured to measure pressure changes in the tubing during a single inhalation and control the flow controller to provide an optimum amount of the fluid through the tubing based on the measured pressure changes during the inhalation.
1 more element
A system of providing oxygen to a user, comprising:
- distensible tubing connected between an oxygen source and the user to provide an amount of oxygen to the user;
- a flow controller coupled to the tubing and configured to control the amount of oxygen through the tubing;
- a pressure sensor connected to the tubing between the flow controller and the user;
- and
- a microcontroller coupled to the pressure sensor, the microcontroller being configured to:
- receive pressure signals provided by the pressure sensor, wherein the pressure signals are detected from differential pressure in the tubing,
- detect the start of a breathing event from the user based on a first pressure signal,
- determine the amount of oxygen needed by the user based on a second pressure signal, and
- control the flow controller to adjust the amount of oxygen flow to the user based on the second pressure signal.
6 more elements
A method of providing oxygen to a user, including:
- detecting the start of a first breathing event in tubing connected to the user;
- analyzing a magnitude of pressure change in the tubing during a predetermined time frame;
- determining an amount of oxygen needed by the user during the first breathing event based on the magnitude of pressure change analyzed;
- and
- supplying the determined amount of oxygen to the user.
2 more elements
Dependencies are inferred from the claim text.