Flashback chamber visual enhancement

• US 8,398,598 B2
• Filed: 10/14/2010
• Issued: 03/19/2013
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Kpr U.S., LLC (Cardinal Health, Inc.)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Carlyon, James L., Schrader, Eugene F., Fiser, Richard L.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): LANDRY II, GERALD ERNEST
• Application Number:
  US12/904,357
• Publication Number:
  US 20110060288A1
• Time in Patent Office: 887 Days
• Field of Search: 604/168.01, 604/276, 604/900, 600/407
• US Class Current: 604/168.01
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0693 Flashback chambers

Abstract

Featured is a medical infusion device for vascular access with enhanced flashback visualization that includes a hub assembly having a flashback chamber. The hub assembly includes a proximal portion, a distal portion and a substantially transparent window section intermediate the proximal portion and distal portion. A needle is coupled to the flashback chamber so that fluid flows through the lumen of the needle into the flashback chamber after the needle is inserted into a blood vessel. A contrasting member is disposed on at least a portion of the hub assembly, so that when blood enters the flashback chamber, the contrasting member provides a high-contrast background when viewed through the window section.

Claims

1. A medical infusion device for vascular access with enhanced flashback visualization, comprising:

a hub assembly defining a receptacle, the hub assembly having a substantially transparent window section;

a needle hub at least partially disposed within the receptacle of the hub assembly, the needle hub defining a flashback chamber disposed within the hub assembly, the flashback chamber being made at least in part of a transparent material;

a contrasting member disposed on at least a portion of the hub assembly, wherein the contrasting member is snapped onto the hub assembly; and

a filter housing fluidly coupled to the flashback chamber, the filter housing including a filter plug.

2. The medical infusion device of claim 1, wherein the contrasting member is a patterned member allowing for improved grip by a user.

3. The medical infusion device of claim 1, wherein the contrasting member is opaque and white.

4. The medical infusion device of claim 1, wherein the filter plug includes a gas-permeable, liquid-impermeable material.

5. A medical infusion device for vascular access with enhanced flashback visualization, comprising:

a hub assembly defining a receptacle, the hub assembly having a substantially transparent window section; and

a needle hub at least partially disposed within the receptacle of the hub assembly, the needle hub defining a flashback chamber disposed within the hub assembly, the flashback chamber being made at least in part of a transparent material,

wherein the window section exhibits an arcuate configuration to provide a magnifying view of fluid in the flashback chamber.

6. The medical infusion device of claim 5, wherein the window section defines a convex configuration.

7. A medical infusion device for vascular access with enhanced flashback visualization, comprising:

a hub assembly defining a receptacle, the hub assembly having a substantially transparent window section;

a needle hub at least partially disposed within the receptacle of the hub assembly, the needle hub defining a flashback chamber disposed within the hub assembly, the flashback chamber being made at least in part of a transparent material; and

a contrasting member disposed on at least a portion of the hub assembly, wherein the contrasting member is snapped onto the hub assembly.

8. The medical infusion device of claim 7, wherein the contrasting member is a patterned member allowing for improved grip by a user.

9. The medical infusion device of claim 7, wherein the contrasting member is opaque and white.