INTEGRATED CATHETER WITH INDEPENDENT FLUID PATHS

• US 20170120010A1
• Filed: 10/05/2016
• Published: 05/04/2017
• Est. Priority Date: 10/28/2015
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Burkholz, Jonathan Karl, Wang, Bin, Peterson, Bart D., Sonderegger, Ralph L.
• Granted Patent: US 10,549,072 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 2039/064 Slit-valve
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0618 having means for protecting only the distal tip of the needle, e.g. a needle guard
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
• CPC Class Codes: A61M 25/0637 Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
• CPC Class Codes: A61M 25/0693 Flashback chambers
• CPC Class Codes: A61M 39/0606 without means for adjusting the seal opening or pressure A61M39/0693 takes precedence
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/1626 Needle protectors therefor in combination with syringes A61M5/3202; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/329 characterised by features of the needle shaft

Abstract

Catheter systems comprising independent fluid paths are disclosed. The catheter systems can include a catheter adapter that has a catheter hub with a chamber. A catheter extends from a distal end of the catheter hub and is in fluid communication with the chamber. A stabilization platform with a first wing and a soft push tab are also part of the catheter hub. The catheter system includes a needle hub with a needle that slidably fits within the catheter. In an insertion configuration, a proximal extension of the catheter hub is removably coupled within a distal opening of the needle hub. After the catheter is placed, the needle hub is retracted from the catheter adapter to slidably remove the needle from the catheter.

Claims

1. A catheter system comprising:

a catheter adapter comprising;

a catheter hub comprising a distal end and a proximal end and defining a chamber extending between the distal end and the proximal end;

a catheter extending from the distal end of the catheter hub and in fluid communication with the chamber;

a stabilization platform; and

a needle hub comprising;

a needle configured to slidably fit within the catheter;

a needle hub body anchored to a proximal end of the needle,

wherein in an insertion configuration, the proximal end of the catheter hub is removably coupled within a distal. opening of the needle hub, and

wherein after placement of the catheter, the needle hub is retracted from the catheter adapter to slidably remove the needle from the catheter and to separate the needle hub from the catheter adapter.

2. The catheter system of claim 1, wherein the needle comprises an axial channel configured provide a primary blood flashback in the chamber of the catheter hub to indicate that the needle has entered a vasculature of a patient.

3. The catheter system of claim 1, wherein the needle comprises an open bore in fluid communication with a chamber of the needle huh and wherein blood flows through the open bore to the chamber of the needle hub to provide a secondary blood flashback that indicates that the needle has entered a vasculature of a patient.

4. The catheter system of claim 1, wherein the stabilization platform further comprises a first wing comprising a generally planar shape to stably maintain the catheter adapter against a skin of a patient.

5. The catheter system of claim 1, wherein the stabilization platform further comprises a soft push tab configured to provide a grasping surface to manipulate and advance the catheter adapter.

6. The catheter system of claim 1, wherein the catheter hub further comprises a Y-port in fluid communication with the chamber of the catheter hub.

7. The catheter system of claim 1, wherein the needle hub further comprises a paddle grip extending from a distal end of the needle hub and configured to provide a grip surface to manipulate the needle hub.

8. The catheter system of claim 1, wherein the catheter hub further comprises a septum configured such that the needle can removably and slidably pass through a slit in the septum.

9. The catheter system of claim 8, wherein the catheter hub further comprises a septum canister configured to secure the septum in the catheter hub.

10. The catheter system of claim 1, further comprising a needle safety configured protect against needle sticks by engaging a distal point of the needle as the needle is retracted from the catheter adapter.

11. A method of catheterization comprising:

providing a catheter system comprising a catheter adapter comprising a catheter hub defining a chamber extending between a distal end and a proximal end, a catheter extending from the distal end of the catheter huh and in fluid communication with the chamber, and a stabilization platform, and a needle hub comprising a needle configured to slidably fit within the catheter and a needle hub body anchored to a proximal end of the needle;

inserting the needle and catheter at a catheter insertion site;

advancing the needle and catheter at the catheter insertion site until a primary blood flashback is provided in the chamber of the catheter hub via an axial channel on the needle;

securing the catheter at the catheter insertion site; and

retracting the needle hub from the catheter adapter to slidably remove the needle from the catheter and to separate the needle hub from the catheter adapter.

12. The method of claim 11, further comprising, advancing the needle and catheter at the catheter insertion site until a secondary blood flashback is provided in a chamber of the needle hub.

13. The method of claim 11, wherein securing the catheter further comprises securing the stabilization platform against skin proximate to the catheter insertion site.

14. The method of claim 11, further comprising engaging a needle safety on a distal point of the needle as the needle is retracted from the catheter adapter.

15. A catheter system comprising:

a catheter adapter comprising a catheter hub defining a chamber extending between a distal end and a proximal end of the catheter hub and a catheter extending from the distal end of the catheter hub and in fluid communication with the chamber and a stabilization platform comprising a first wing and a soft push tab; and

a needle huh comprising a needle configured to slidably fit within the catheter and a needle hub body anchored to a proximal end of the needle,

wherein in an insertion configuration, a proximal extension of the catheter huh is removably coupled within a distal opening of the needle hub, and

wherein after placement of the catheter, the needle hub is retracted from the catheter adapter to slidably remove the needle from the catheter and to separate the needle hub from the catheter adapter.

16. The catheter system of claim 15, wherein the needle comprises an axial channel configured provide a primary blood flashback to indicate that the needle has entered a blood vein.

17. The catheter system of claim 15, wherein blood flows through an open bore of the needle to the chamber of the needle hub to provide a secondary blood flashback to indicate that the needle has entered a vasculature of a patient.

18. The catheter system of claim 16, wherein the catheter hub further comprises a septum with a slit, wherein the slit is configured to allow the needle to slidably pass therethrough, and wherein the slit is configured to conform to the axial channel while the axial channel slidably passes through the slit to exclude any fluid in the axial channel.

19. The catheter system of claim 18, wherein the catheter hub further comprises a septum canister configured to secure the septum in the catheter huh and wherein the septum canister comprises a retaining ridge configured to secure the septum canister to the catheter hub.

20. The catheter system of claim 15, further comprising a needle safety removably disposed within the proximal extension of the catheter hub and configured protect against needle sticks by engaging a distal point of the needle as the needle is retracted from the catheter adapter.