PRECISION VARIABLE FLOW RATE INFUSION SYSTEM AND METHOD
First Claim
1. A precision variable flow rate infusion system for delivering a liquid from a reservoir having an initial potential outflow rate to a patient, comprising:
- at least a first flexible flow rate tubing having a pre-defined flow rate; and
an adjustable flow rate controller having an inlet and an outlet, at least one internal fluid pathway there between and a fluid pathway modifier structured and arranged to modify the internal fluid pathway from the inlet to the outlet from a closed pathway to a maximum flow pathway with a plurality of different flow rate pathways there between providing from a maximum adjuster flow rate to a zero flow rate;
wherein the pre-defined flow rate and the maximum adjuster flow rate cooperatively combining to be equal to or less than a maximum dosage flow rate for the liquid from the reservoir;
wherein the combination of the pre-defined flow rate and the maximum adjuster flow rate determine the maximum flow rate of liquid from the reservoir to a patient, and the adjustable flow rate controller permitting precision flow rate control from an off flow rate to about the maximum flow rate permitted by the combination of the pre-defined flow rate and the maximum adjuster flow rate.
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Accused Products
Abstract
Provided is a precision variable flow rate infusion system and method for delivering a liquid from a reservoir having an initial potential outflow rate to a patient. The system includes at least a first flexible flow rate tubing having a pre-defined flow rate selected at a maximum dosage flow rate for the liquid from the reservoir, the pre-defined flow rate being less than the initial potential outflow rate of the reservoir. Also provided is an adjustable flow rate controller having an inlet and an outlet, at least one internal fluid pathway there between and a fluid pathway modifier structured and arranged to modify the internal fluid pathway from the inlet to the outlet from a closed pathway to a maximum flow pathway with a plurality of different flow rate pathways there between. Moreover, the at least first flexible flow rate tubing and adjustable flow rate controller determine the maximum flow rate of liquid from the reservoir to a patient and the adjustable flow rate controller permits precision flow rate control from an off flow rate to about the maximum flow rate permitted. Associated methods of providing, calibrating and using the precision variable flow rate infusion system are also provided.
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Citations
57 Claims
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1. A precision variable flow rate infusion system for delivering a liquid from a reservoir having an initial potential outflow rate to a patient, comprising:
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at least a first flexible flow rate tubing having a pre-defined flow rate; and an adjustable flow rate controller having an inlet and an outlet, at least one internal fluid pathway there between and a fluid pathway modifier structured and arranged to modify the internal fluid pathway from the inlet to the outlet from a closed pathway to a maximum flow pathway with a plurality of different flow rate pathways there between providing from a maximum adjuster flow rate to a zero flow rate; wherein the pre-defined flow rate and the maximum adjuster flow rate cooperatively combining to be equal to or less than a maximum dosage flow rate for the liquid from the reservoir; wherein the combination of the pre-defined flow rate and the maximum adjuster flow rate determine the maximum flow rate of liquid from the reservoir to a patient, and the adjustable flow rate controller permitting precision flow rate control from an off flow rate to about the maximum flow rate permitted by the combination of the pre-defined flow rate and the maximum adjuster flow rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A precision variable flow rate infusion system for delivering a liquid from a reservoir having an initial potential outflow rate to a patient, comprising:
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an adjustable flow rate controller having an inlet and an outlet, at least one internal fluid pathway there between and a fluid pathway modifier structured and arranged to modify the internal fluid pathway from the inlet to the outlet from a closed pathway to a maximum flow pathway with a plurality of different flow rate pathways there between providing from a maximum adjuster flow rate to a zero flow rate; a first flexible flow rate tubing having a first pre-defined flow rate, the first flexible flow rate tubing disposed between the reservoir and the inlet of the adjustable flow rate controller; and a second flexible flow rate tubing having a second pre-defined flow rate, the second flexible flow rate tubing disposed between the outlet of the adjustable flow rate controller and the patient; wherein the first pre-defined flow rate and the second pre-defined flow rate and the maximum adjuster flow rate cooperatively combine to be equal to or less than a maximum dosage flow rate for the liquid from the reservoir; and wherein the combination of first pre-defined flow rate and the second pre-defined flow rate and the maximum adjuster flow rate determine the maximum flow rate of liquid from the reservoir to a patient, and the adjustable flow rate controller permitting precision flow rate control from an off flow rate to about the maximum flow rate permitted by the combination of the first pre-defined flow rate, the second pre-defined flow rate and the maximum adjuster flow rate. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for providing a precision variable flow rate infusion system for delivering a liquid from a reservoir having an initial potential outflow rate to a patient at a flow rate equal to or less than a maximum dosage flow rate for the liquid, comprising:
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providing an adjustable flow rate controller having an inlet and an outlet, at least one internal fluid pathway there between and a fluid pathway modifier structured and arranged to modify the internal fluid pathway from the inlet to the outlet from a closed pathway to a maximum flow pathway with a plurality of different flow rate pathways there between providing from a maximum adjuster flow rate to a zero flow rate; providing a first flexible flow rate tubing having a first pre-defined flow rate, the first flexible flow rate tubing disposed between the reservoir and the inlet of the adjustable flow rate controller; and providing a second flexible flow rate tubing having a second pre-defined flow rate, the second flexible flow rate tubing disposed between the outlet of the adjustable flow rate controller and the patient; wherein the first pre-defined flow rate and the second pre-defined flow rate and the maximum adjuster flow rate cooperatively combine to be equal to or less than a maximum dosage flow rate for the liquid from the reservoir; and wherein the combination of first pre-defined flow rate and the second pre-defined flow rate and the maximum adjuster flow rate determine the maximum flow rate of liquid from the reservoir to a patient, and the adjustable flow rate controller permitting precision flow rate control from an off flow rate to about the maximum flow rate permitted by the combination of the first pre-defined flow rate, the second pre-defined flow rate and the maximum adjuster flow rate. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification