Micro infusion device for drug delivery
First Claim
1. A device for introducing small volumes of fluid for delivery to a patient through a fluid line, comprising:
- a y-site comprising a first arm adapted to receive a syringe and a second arm fluidly connected to an upstream reservoir, the reservoir defining an internal volume adapted to receive a volume of fluid; and
a fluid obstruction mechanism inside the y-site, the fluid obstruction mechanism configured to selectably block flow of fluid from the reservoir toward the patient, wherein the fluid obstruction mechanism transitions between a first state that permits fluid flow from the reservoir toward the patient and a second state that directs fluid flow from the syringe into the reservoir while blocking fluid flow from the reservoir toward the patient, wherein the syringe pushes the fluid obstruction mechanism to the second state when the syringe is inserted into the y-site.
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Accused Products
Abstract
A device introduced small volumes of fluid for delivery to a patient through a fluid line. The device includes a first arm adapted to receive a syringe and a second arm fluidly connected to an upstream reservoir that defines an internal volume adapted to receive a volume of fluid. The device includes a fluid obstruction mechanism configured to selectably block flow of fluid from the reservoir toward the patient, wherein the fluid obstruction mechanism transitions between a first state that permits fluid flow from the reservoir toward the patient and a second state that directs fluid flow from the syringe into the reservoir while blocking fluid flow from the reservoir toward the patient.
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Citations
15 Claims
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1. A device for introducing small volumes of fluid for delivery to a patient through a fluid line, comprising:
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a y-site comprising a first arm adapted to receive a syringe and a second arm fluidly connected to an upstream reservoir, the reservoir defining an internal volume adapted to receive a volume of fluid; and a fluid obstruction mechanism inside the y-site, the fluid obstruction mechanism configured to selectably block flow of fluid from the reservoir toward the patient, wherein the fluid obstruction mechanism transitions between a first state that permits fluid flow from the reservoir toward the patient and a second state that directs fluid flow from the syringe into the reservoir while blocking fluid flow from the reservoir toward the patient, wherein the syringe pushes the fluid obstruction mechanism to the second state when the syringe is inserted into the y-site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of delivering a small volume of fluid into a fluid line attached to a patient, comprising:
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fluidly attaching a syringe to a first arm of a y-site located on the fluid line, the syringe containing a first volume of fluid, wherein the y-site additionally comprises a second arm fluidly connected to a reservoir; causing the syringe to push an obstruction mechanism inside the y-site so that the obstruction mechanism blocks fluid flow through the fluid line toward the patient at a location downstream of the syringe; actuating the syringe to inject the first volume of fluid into the fluid line such that the first volume of fluid flows toward the reservoir, thereby causing fluid to flow into the reservoir; and unblocking fluid flow through the fluid line to permit fluid to flow toward the patient. - View Dependent Claims (12, 13, 14, 15)
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Specification