Closed IV access device with paddle grip needle hub and flash chamber
First Claim
Patent Images
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;
ora 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.
1 Assignment
0 Petitions
Accused Products
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.
248 Citations
15 Claims
-
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;
ora 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
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. - View Dependent Claims (12, 13, 14, 15)
-
Specification