Portable infusion management apparatus and method
First Claim
1. A method comprising:
- receiving control input inputted to a fluid delivery system, the control input controlling a position setting of a variable fluid flow resistor, the variable fluid flow resistor resisting passage of fluid through a fluid pathway between a fluid source and a recipient;
producing a control signal indicative of the position setting of the variable fluid flow resistor;
deriving a fluid flow rate value from the control signal;
applying pressure to the fluid source to deliver the fluid from the fluid source to the recipient through the variable fluid flow resistor at a rate as specified by the derived fluid flow rate value; and
wherein producing the control signal includes;
physically detecting the position setting of the variable fluid flow resistor using a position sensor coupled to the variable fluid flow resistor, the position sensor physically detecting a degree to which the variable fluid flow resistor is open, the position sensor producing the control signal.
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Accused Products
Abstract
A portable infusion apparatus and method are provided for controlling the delivery of medicinal fluid to a patient. A fluid delivery system receives control input to control a setting of a variable fluid flow resistor. The variable fluid flow resistor resists passage of fluid through a fluid pathway between a fluid source and a recipient. The fluid delivery system; produces a control signal indicative of the setting of the variable fluid flow resistor; derives a fluid flow rate value from the control signal; and applies pressure to the fluid source to deliver the fluid from the fluid source to the recipient through the variable fluid flow resistor at a rate as specified by the derived fluid flow rate value.
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Citations
25 Claims
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1. A method comprising:
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receiving control input inputted to a fluid delivery system, the control input controlling a position setting of a variable fluid flow resistor, the variable fluid flow resistor resisting passage of fluid through a fluid pathway between a fluid source and a recipient; producing a control signal indicative of the position setting of the variable fluid flow resistor; deriving a fluid flow rate value from the control signal; applying pressure to the fluid source to deliver the fluid from the fluid source to the recipient through the variable fluid flow resistor at a rate as specified by the derived fluid flow rate value; and wherein producing the control signal includes;
physically detecting the position setting of the variable fluid flow resistor using a position sensor coupled to the variable fluid flow resistor, the position sensor physically detecting a degree to which the variable fluid flow resistor is open, the position sensor producing the control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
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an input device that receives control input, the control input physically controlling a position setting of a variable fluid flow resistor, the variable fluid flow resistor disposed in a fluid pathway between a fluid source and a recipient; a position sensor coupled to the variable fluid flow resistor, the position sensor monitoring the variable fluid flow resistor and physically detecting a degree to which the variable fluid flow resistor is open, the position sensor producing a control signal indicative of the position setting of the variable fluid flow resistor; and a flow controller configured to receive the control signal, the flow controller;
i) deriving a fluid flow rate setpoint from the control signal, and ii) initiating application of pressure to the fluid source to deliver the fluid from the fluid source to the recipient through the variable fluid flow resistor at the derived fluid flow rate setpoint. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification