Syringe adapter

Patent metadata

Field	Value
Publication number	US-2025339613-A1
Application number	US-202519272371-A
Country	US
Kind code	A1
Filing date	Jul 17, 2025
Priority date	Oct 11, 2018
Publication date	Nov 6, 2025
Grant date	—

Abstract

Syringe adapters are provided that include a female connector, a body in fluid communication with the female connector, a male connector in fluid communication with the female connector and the body, the male connector configured to couple with a medical device, a chamber fluidly coupled to and extending outward from the body, wherein a fluid path is formed through the female connector and the body and into the chamber, and wherein a closed system is provided when the syringe is uncoupled from the syringe adapter. Methods of using syringe adapters and fluid delivery systems having syringe adapters are also provided.

First claim

What is claimed is:

1 . A syringe adapter for coupling a syringe to a fluid system, the syringe adapter comprising:
a female connector; a body in fluid communication with the female connector; a male connector in fluid communication with the female connector and the body, the male connector configured to couple with a medical device; a chamber fluidly coupled to and extending outward from the body; wherein a fluid path is formed through the female connector and the body and into the chamber, and wherein a closed system is provided when the syringe is uncoupled from the syringe adapter.

2 . The syringe adapter of claim 1 , further comprising a holder configured to support the chamber.

3 . The syringe adapter of claim 2 , wherein the holder extends outward from the body in the same direction as the chamber.

4 . The syringe adapter of claim 1 , wherein the chamber comprises a resilient bag.

5 . The syringe adapter of claim 1 , wherein the chamber comprises a non-resilient bag.

6 . The syringe adapter of claim 1 , wherein the chamber comprises a collapsable plastic container.

7 . The syringe adapter of claim 1 , further comprising a needle-free connector fluidly coupled to the female connector.

8 . The syringe adapter of claim 7 , wherein the needle-free connector comprises a male connector coupled to the female connector and a female fitting disposed on an opposing end of the needle-free connector, the female fitting configured to couple to a male connector of a medical device.

9 . The syringe adapter of claim 7 , further comprising a valve disposed between the needle-free connector and the female connector.

10 . The syringe adapter of claim 9 , wherein the valve is configured to allow fluid flow from the needle-free connector to the female connector and to prevent fluid flow from the female connector to the needle-free connector.

11 . The syringe adapter of claim 1 , wherein the medical device is an intravenous set.

12 . The syringe adapter of claim 1 , wherein the medical device is a pump fitting.

13 . A method of using a syringe adapter, the method comprising:
coupling a syringe to a syringe adapter, the syringe adapter comprising a female connector, a male connector, a body in fluid communication with the female connector and the male connector, and a chamber fluidly coupled to and extending outward from the body; depressing a plunger of the syringe; pushing fluid from the syringe through the female connector and the body and into the chamber; and uncoupling the syringe from the syringe adapter to provide a closed system.

14 . The method of claim 13 , further comprising:
gravitationally flowing fluid from the chamber, through the male connector and into an intravenous set coupled to the male connector.

15 . The method of claim 13 , further comprising:
pumping fluid from the chamber, through the male connector and into an intravenous set via a pump fitting coupled to the male connector.

16 . The method of claim 13 , wherein the chamber comprises a resilient elastomeric bag and wherein the pushing fluid from the syringe into the chamber causes the resilient elastomeric bag to inflate and fill with the fluid from the syringe.

17 . The method of claim 13 , wherein the female connector of the syringe adapter is coupled to a needle-free connector and wherein the coupling the syringe to the syringe adapter comprises coupling a male connector of the syringe to a female fitting of the needle-free connector.

18 . The method of claim 17 , further comprising:
swabbing the needle-free connector; coupling another syringe containing additional fluid to the needle-free connector; and pushing the additional fluid into the chamber.

19 . A fluid delivery system, comprising:
a syringe; a syringe adapter coupled to the syringe, the syringe adapter comprising:
a needle-free connector configured to be coupled to the syringe;
a female connector coupled to the needle-free connector;
a body coupled to the female connector;
a male connector coupled to the body; and
a chamber coupled to and extending outward from the body; and
an intravenous set coupled to the male connector,
wherein a fluid path is formed from the syringe, through the needle-free connector, the female connector and the body and into the chamber, and wherein a closed system is provided when the syringe is uncoupled from the syringe adapter.

20 . The fluid delivery system of claim 19 , further comprising:
a valve disposed between the needle-free connector and the female connector, wherein the valve is configured to allow fluid flow from the needle-free connector to the female connector and to prevent fluid flow from the female connector to the needle-free connector.

Assignees

• Carefusion 303 Inc

Inventors

• Mansour George
• Ewing Linda
• Mason Eugene
• Frausto Tomas
• Callahan Ryan

Classifications

• A61M2039/1077

  Adapters, e.g. couplings adapting a connector to one or several other connectors · CPC title

• A61M2039/1072

  with a septum present in the connector · CPC title

• A61M39/12

  for joining a flexible tube to a rigid attachment · CPC title

• A61J1/2065

  having aligning and guiding means · CPC title

• A61M2205/75

  with filters · CPC title