Catheter assembly and components thereof

Patent metadata

Field	Value
Publication number	US-10682500-B2
Application number	US-201614989728-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Nov 3, 2006
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

Catheter assemblies are generally discussed herein with particular discussions extended to catheter assemblies having a tip protector, a valve, a valve opener, and optionally a needle wiper. The valve opener is disposed inside a catheter hub and is configured to be pushed by an IV set luer connector to open a valve following successful catheterization to pass fluids or other solutions through the catheter. A tip protector is incorporated to block the needle tip and prevent the same from accidental needle stick. A wiper is optionally included to wipe blood deposits from the needle when the same is retracted from the catheter.

First claim

What is claimed is:

1. A safety catheter assembly comprising:
a catheter tube attached to and extending in a distal direction of a first hub, said first hub comprising an interior surface defining an interior cavity and a proximal opening at a proximal end and wherein the first hub is a catheter hub;
a needle having a needle shaft with a crimp, bump, or clip engagement section attached to a second hub, said needle projecting through the catheter tube and the catheter hub and comprising a needle tip and wherein the second hub is a needle hub comprising a wall surface;
a tip protector, positioned inside a third hub which is separable from the first hub and the second hub, wherein the tip protector comprises two arms extending in a distal direction with each arm comprising a distal wall for blocking the needle tip and wherein the third hub is a tip protector housing comprising a wall surface;
a metallic wall with a continuous perimeter defining an opening for engaging the crimp, bump, or clip engagement section of the needle when the needle is retracted in a proximal direction; and
wherein the needle and the catheter tube are sized and shaped for use to puncture a patient's vasculature.

2. The safety catheter assembly of claim 1 , further comprising a valve configured to obstruct fluid flow positioned inside the interior cavity of the catheter hub.

3. The safety catheter assembly of claim 2 , further comprising a valve opener for opening the valve positioned proximally of the valve.

4. The safety catheter assembly of claim 1 , wherein the two arms extend distally of the metallic wall with the continuous perimeter.

5. The safety catheter assembly of claim 4 , wherein the two arms are attached to the metallic wall.

6. The safety catheter assembly of claim 4 , wherein the two arms and the metallic wall are unitarily formed.

7. The safety catheter assembly of claim 1 , wherein the third hub has an enclosed housing section with an opening for placing the tip protector therein.

8. The safety catheter assembly of claim 7 , further comprising a rear panel for closing the opening of the enclosed housing section.

9. The safety catheter assembly of claim 1 , wherein part of the third hub projects into the first hub.

10. The safety catheter assembly of claim 8 , wherein the metallic wall and the rear panel are movable relative to one another.

11. A safety catheter assembly comprising:
a catheter tube attached to a first hub having a needle, which is attached to a second hub, projecting through the catheter tube in a ready to use position; the needle has a sharpened needle tip and a crimp, bump, or clip engagement section; the first hub comprises an exterior surface and an interior surface defining an interior cavity and wherein the first hub is a catheter hub and the second hub is a needle hub comprising a wall surface;
a third hub positioned between the catheter hub and the needle hub and separable from the catheter hub and the needle hub; the third hub having an enclosed housing section having a tip protector positioned therein through an opening that is closed by a wall; said tip protector comprising two arms each with a distal wall for blocking the needle tip in a protective position and wherein the third hub is a tip protector housing;
a metallic wall located in the third hub, said metallic wall comprising a continuous perimeter defining an opening for engaging the crimp, bump, or clip engagement section of the needle when the needle is retracted in a proximal direction away from the catheter tube; and
wherein the needle and the catheter tube are sized and shaped for use to puncture a patient's vasculature.

12. The safety catheter assembly of claim 11 , further comprising a valve configured to obstruct fluid flow positioned inside the interior cavity of the catheter hub.

13. The safety catheter assembly of claim 12 , further comprising a valve opener for opening the valve positioned proximally of the valve.

14. The safety catheter assembly of claim 11 , wherein the two arms extend distally of the metallic wall with the continuous perimeter.

15. The safety catheter assembly of claim 14 , wherein the two arms are attached to the metallic wall.

16. The safety catheter assembly of claim 14 , wherein the two arms and the metallic wall are unitarily formed.

17. The safety catheter assembly of claim 11 , further comprising a wiper comprising a continuous opening having the needle passing therethrough located in the third hub.

18. The safety catheter assembly of claim 11 , wherein the metallic wall and the wall closing the opening of the third hub are movable relative to one another.

19. The safety catheter assembly of claim 11 , wherein the two arms have different lengths.

Assignees

• Braun Melsungen Ag

Inventors

• Woehr Kevin
• Zerbes Michael

Classifications

• A61M5/158 Primary

  Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} · CPC title

• A61M25/0625

  with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism · CPC title

• A61M39/06

  Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof · CPC title

• A61M2039/0686

  comprising more than one seal · CPC title

• A61B5/150213

  Venting means · CPC title