Disposable intravenous (IV) set with flow control valve

Patent metadata

Field	Value
Publication number	US-11896796-B2
Application number	US-202016858348-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	Dec 31, 2015
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A retrograde disposable intravenous (IV) set is disclosed. The IV set includes a diverter housing between upper and lower portions of a fluid line, the diverter housing including a lower end and an upper end extending away from the lower end and the fluid line to a syringe port located in the upper end, and a diverter member within the diverter housing and configured to move within the diverter housing from a first position, at which a first opening through the diverter member forms a first fluid pathway between the upper portion and the lower portion of the fluid line, to a second position, at which the first fluid pathway is blocked and a second fluid pathway is formed between the upper portion of the fluid line and a syringe port. Retrograde infusion may occur when the diverter member is in the second position.

First claim

What is claimed is:

1. A disposable intravenous (IV) set, comprising:
a main housing having an upper portion and a lower portion, the upper portion configured to connect to a fluid tubing providing a fluid from a fluid container, the lower portion configured to connect to a patient interface device;
a y-port housing formed with an exterior of the main housing and comprising a lower end and an upper end extending, from the lower end and from a location between the upper portion and the lower portion of the main housing, to a syringe port located in the upper end of the y-port housing; and
an elongated sliding valve within and traversing the y-port housing and configured to slide from a first position, at which a first opening through the sliding valve is positioned within the y-port housing at an intersection of the y-port housing and the main housing to form a first fluid pathway between the upper portion and the lower portion of the main housing through the first opening, to a second position, at which the first fluid pathway is blocked and a second opening through the sliding valve is positioned within the y-port housing to form a second fluid pathway between the upper portion of the main housing and the syringe port.

2. The disposable IV set of claim 1 , wherein the second fluid pathway comprises a first portion that extends from the syringe port toward the main housing along a longitudinal axis of the y-port housing, and a second portion fluidly coupled to the first portion and that curves away from the first portion and away from the longitudinal axis of the y-port housing to fluidly couple to the upper portion of the main housing and form the second fluid pathway when the sliding valve is in the second position.

3. The disposable IV set of claim 2 , further comprising:
a spring disposed within the lower end of the y-port housing opposite the syringe port and the upper end of the y-port housing,
wherein the spring is configured to engage the sliding valve to cause the sliding valve to be positioned in the first position when a syringe is not engaged with the syringe port, and to compress when the sliding valve is moved toward the lower end responsive to a coupling of a syringe with the syringe port,
wherein the coupling of the syringe with the syringe port causes the sliding valve to be compressed against the spring to move the sliding valve to the second position whereby the second fluid pathway is formed, and a decoupling of the syringe from the syringe port causes the sliding valve to retract due to extension of the spring to move to the first position whereby the first fluid pathway is formed.

4. The disposable IV set of claim 2 , wherein the sliding valve moves along the longitudinal axis of the y-port housing, and the longitudinal axis of the y-port housing is offset at an angle with respect to the main housing.

5. The disposable IV set of claim 4 , further comprising:
one or more seals positioned between an outer surface of the sliding valve and an interior surface of the y-port housing, and configured to block fluid flow from the upper portion of the main housing to the lower portion of the main housing when the sliding valve is in the second position.

6. The disposable IV set of claim 5 , wherein the one or more seals are arranged around the sliding valve so that, based on the angle, when the sliding valve is in the second position, the one or more seals prevents fluid flow between the lower portion of the main housing and the upper portion of the main housing, and prevents fluid flow between the lower portion of the main housing and the upper end of the y-port housing.

7. The disposable IV set of claim 2 , wherein the patient interface device comprises a venous access device.

8. A flow control valve, comprising:
a diverter housing positioned between an upper portion of a fluid line and a lower portion of the fluid line, the diverter housing comprising a lower end and an upper end extending away from the lower end and offset at an angle from an exterior of the fluid line to a port located in the upper end of the diverter housing; and
a diverter having an elongated profile within the diverter housing and configured to move within and traverse the diverter housing from a first position, at which a first opening through the diverter is positioned at an intersection of the diverter and the fluid line to form a first fluid pathway between the upper portion and the lower portion of the fluid line, to a second position, at which the first fluid pathway is blocked and a second fluid pathway is formed between the upper portion of the fluid line and the port in the upper end of the diverter housing.

9. The flow control valve of claim 8 , wherein the second fluid pathway comprises a first portion that extends from the port toward the fluid line along a longitudinal axis of the diverter housing, and a second portion fluidly coupled to the first portion and that curves away from the first portion and away from the longitudinal axis of the diverter housing to fluidly couple to the upper portion of the fluid line and form the second fluid pathway when the diverter is in the second position.

10. The flow control valve of claim 9 , further comprising:
a spring disposed within the lower end of the diverter housing opposite the port and the upper end of the diverter housing,
wherein the lower end of the diverter housing extends away from the fluid line and the spring is configured to engage the diverter to cause the diverter to be positioned in the first position when a fluid interface is not engaged with the port, and to compress when the diverter is moved toward the lower end responsive to a coupling of a fluid interface with the port,
wherein the coupling of the fluid interface with the port causes the diverter to be compressed against the spring to move the diverter to the second position whereby the second fluid pathway is formed, and a decoupling of the fluid interface from the port causes the diverter to retract due to extension of the spring to move to the first position whereby the first fluid pathway is formed.

11. The flow control valve of claim 9 , wherein the diverter moves along the longitudinal axis of the diverter housing, and the longitudinal axis of the diverter housing is offset at an angle with respect to the fluid line.

12. The flow control valve of claim 11 , further comprising:
a seal positioned between an outer surface of the diverter and an interior surface of the diverter housing, and configured to block fluid flow from the upper portion of the fluid line to the lower portion of the fluid line when the diverter is in the second position.

13. The flow control valve of claim 12 , wherein the seal is arranged around the diverter so that, based on the angle, when the diverter is in the second position, the seal prevents fluid flow between the lower portion of the fluid line and the upper portion of the fluid line, and prevents fluid flow between the lower portion of the fluid line and the upper end of the diverter housing.

14. The flow control valve of claim 8 , wherein the port comprises a luer fitting or a syringe fitting.

15. The flow control valve of claim 8 , further comprising:
a main housing integrally formed with the diverter housing and having a first protrusion connected to the upper portion of the fluid line, and a second protrusion connected to the lower portion of the fluid line, the main housing and the first and second protrusions being parallel with the fluid line, and a longitudinal axis of the diverter housing being offset at an angle from the main housing and first and second pro

Assignees

• Carefusion 303 Inc

Inventors

• Vasko Robert
• Bollish Stephen J
• Farhat Lawrence
• Abal Daniel
• Butterfield Robert Dwaine

Classifications

• A61M39/24 Primary

  Check- or non-return valves · CPC title

• A61M5/14

  Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor · CPC title

• A61M5/142

  Pressure infusion, e.g. using pumps · CPC title

• A61M5/1413 Primary

  Modular systems comprising interconnecting elements · CPC title

• A61M5/31

  Details · CPC title