Closed IV access device with paddle grip needle hub and flash chamber

Patent metadata

Field	Value
Publication number	US-10639455-B2
Application number	US-201615286188-A
Country	US
Kind code	B2
Filing date	Oct 5, 2016
Priority date	Oct 28, 2015
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

An IV access device can include a needle hub that incorporates a flash chamber. The flash chamber can be used to provide visual confirmation of proper catheter placement within a vein. The flash chamber can include a path-defining structure to facilitate identifying whether blood is continually flowing into the flash chamber. The flash chamber may also be removable from the needle hub. In some cases, the needle hub may include a paddle grip that facilitates insertion of the catheter and separation of the needle hub from the catheter adapter.

First claim

The invention claimed is:

1. An IV access device comprising:
a catheter adapter from which a catheter extends distally;
an extension tube coupled to the catheter adapter; and
a needle hub from which a needle extends distally, the needle hub being coupled to the catheter adapter such that the needle extends through the catheter;
wherein the needle hub further includes a flash chamber that is in fluid communication with a lumen of the needle thereby allowing blood to flow into the flash chamber when a distal tip of the needle is contained within a patient's vein, wherein a proximal end of the flash chamber includes a vent plug, wherein the flash chamber includes:
a path-defining structure forming a path for blood to flow within the chamber, wherein the path includes a spiral path formed around an outer surface of the path-defining structure and having a distal end and a proximal end, wherein the distal end of the spiral path is proximal to the needle, wherein the proximal end of the spiral path is proximate the vent plug; or
a path that commences from an opening in a distal end of the path-defining structure and passes through a leaking channel to a visualization channel formed along an outer surface of the path-defining structure.

2. The IV access device of claim 1 , wherein a proximal end of the needle includes an opening that is positioned within a chamber of the flash chamber.

3. The IV access device of claim 2 , wherein the flash chamber includes a plug positioned proximal to the chamber, the plug venting air but blocking the flow of blood to an external environment.

4. The IV access device of claim 2 , wherein the needle hub includes a needle retaining portion through which the needle extends, the opening of the needle being positioned proximal to the needle retaining portion.

5. The IV access device of claim 1 , wherein the opening of the needle extends into the path formed by the path-defining structure.

6. The IV access device of claim 1 , wherein the needle includes a notch positioned towards the distal tip of the needle, wherein blood flowing through the notch and into the catheter provides a first confirmation of proper catheter placement and blood flowing into the flash chamber provides second confirmation of proper catheter placement.

7. The IV access device of claim 1 , wherein the flash chamber is removable from the needle hub.

8. The IV access device of claim 7 , wherein the flash chamber is compressible to allow blood contained within the chamber to be ejected from the chamber.

9. The IV access device of claim 7 , wherein the needle hub includes a female luer port, the flash chamber being configured to be coupled to the female luer port.

10. The IV access device of claim 1 , wherein the catheter adapter includes a wing and the needle hub includes a paddle grip.

11. An IV access device comprising:
a catheter adapter from which a catheter extends distally;
an extension tube coupled to the catheter adapter;
a needle hub from which a needle extends distally, the needle hub being coupled to the catheter adapter such that the needle extends through the catheter, the needle hub including a flash chamber, a proximal end of the needle forming a fluid pathway for blood to flow into the flash chamber, the flash chamber including a plug that vents air but blocks the flow of blood thereby allowing blood to flow into the flash chamber when a distal tip of the needle is contained within a patient's vein, wherein the flash chamber includes a path-defining structure forming a path for blood to flow within the chamber, wherein a proximal end of the flash chamber includes a vent plug, wherein the path-defining structure includes a spiral path formed around an outer surface of the path-defining structure and having a distal end and a proximal end, wherein the distal end of the spiral path is proximal the needle, wherein the proximal end of the spiral path is the vent plug.

12. The IV access device of claim 11 , wherein the flash chamber is removable from the needle hub.

13. The IV access device of claim 11 , wherein the plug is formed by a portion of the path-defining structure.

14. The IV access device of claim 11 , wherein the flash chamber couples to the needle hub via a female luer port.

15. The IV access device of claim 11 , wherein the catheter adapter includes a wing and the needle hub includes a paddle grip.

Assignees

• Becton Dickinson Co

Inventors

• Burkholz Jonathan Karl
• Peterson Bart D
• Wang Bin
• Sonderegger Ralph L
• Warner Tyler

Classifications

• A61M25/0693 Primary

  Flashback chambers · CPC title

• A61M25/0606

  "Over-the-needle" catheter assemblies, e.g. I.V. catheters · CPC title

• A61M25/0014

  Connecting a tube to a hub · CPC title

• A61M25/0637

  Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin · CPC title

• A61M25/0015

  Making lateral openings in a catheter tube, e.g. holes, slits, ports, piercings of guidewire ports; Methods for processing the holes, e.g. smoothing the edges · CPC title