Flushing medical devices

Patent metadata

Field	Value
Publication number	US-9399098-B2
Application number	US-201213984188-A
Country	US
Kind code	B2
Filing date	Feb 23, 2012
Priority date	Feb 25, 2011
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

Syringes and flushing medical devices are generally discussed herein for withdrawing, injecting, or instilling fluids. More particularly, syringe tips and flushing tip adaptors with multiple flow channels are discussed for flushing vascular access devices. The tips have cut-outs that are located and sized to produce a relatively wider flow profile than a typical syringe tip with a single central lumen to facilitate flushing the vascular access devices.

First claim

What is claimed is:

1. A flushing medical device comprising:
a tip having a body comprising a tip end having a generally planar end surface that is generally orthogonal to a side wall having a Luer taper, wherein the tip end and the side wall define an intersection therebetween and wherein the side wall has a greater surface area than a surface area on the tip end;
a lumen formed by the side wall; and
wherein at least one cut-out is formed through the side wall and through the tip end at the intersection and one centrally located port is formed through the generally planar end surface.

2. The flushing medical device of claim 1 , wherein the at least one cut-out formed through the intersection has a spiral curve shape.

3. The flushing medical device of claim 1 , further comprising a receiving end located opposite the tip end, the receiving end having an interior wall surface with a female Luer taper.

4. The flushing medical device of claim 1 , further comprising a tapered skirt and a flange defining a notch on the body.

5. The flushing medical device of claim 1 , further comprising a threaded collar.

6. The flushing medical device of claim 4 , further comprising a collar that is rotatable relative to the body.

7. The flushing medical device of claim 1 , further comprising a syringe barrel attached to the tip and a plunger located inside the syringe barrel.

8. The flushing medical device of claim 1 , wherein the tip is formed to a syringe barrel having a plunger located inside the syringe barrel.

9. The flushing medical device of claim 8 , wherein the plunger is slidably disposed inside the barrel and comprises a push flange.

10. The flushing medical device of claim 1 , further comprising a cap fitted over the tip.

11. The flushing medical device of claim 1 , further comprising a catheter hub and the tip is disposed, at least in part, in an interior cavity of the catheter hub.

12. The flushing medical device of claim 1 , further comprising a central lumen and a second cut-out formed through the side wall and through the tip end at the intersection.

13. The flushing medical device of claim 1 , further comprising a perimeter defining an opening formed only through the surface area of the tip end.

14. The flushing medical device of claim 1 , further comprising a second cut-out formed through the side wall and through the tip end at the intersection thereof and spaced apart from the at least one cut-out.

15. A flushing medical device comprising:
a tip having body a comprising a tip end having a generally planar end surface that is generally orthogonal to a side wall having a Luer taper, wherein the generally planar end surface of the tip end and the side wall define an intersection therebetween and wherein the side wall has a greater surface area than a surface area of the generally planar end surface of the tip end;
a lumen formed by the side wall;
a receiving end having a female Luer taper;
a threaded collar located exteriorly of the body; and
wherein at least one cut-out is formed through the side wall and through the tip end at the intersection and one centrally located port is formed through the generally planar end surface.

16. The flushing medical device of claim 15 , wherein the at least one cut-out formed through the intersection has a spiral curve shape.

17. The flushing medical device of claim 15 , further comprising a second cut-out formed through the side wall and through the tip end at the intersection and spaced apart from the at least one cut-out and the one centrally located port.

18. A flushing medical device comprising:
a tip having a body comprising a tip end having a generally planar end surface that is generally orthogonal to a side wall having a Luer taper, wherein the tip end and the side wall define an intersection therebetween and wherein the side wall has a greater surface area than a surface area of the generally planar end surface of the tip end;
a lumen formed by the side wall;
a barrel attached to the tip;
a plunger slidably disposed inside the barrel; and
wherein at least one cut-out is formed through the side wall and through the tip end at the intersection and one centrally located port is formed through the generally planar end surface.

19. The flushing medical device of claim 18 , wherein the tip is unitarily formed with the syringe barrel.

20. The flushing medical device of claim 18 , further comprising a second cut-out formed through the side wall and through the tip end at the intersection and spaced apart from the at least one cut-out and the one centrally located port.

21. The flushing medical device of claim 18 , further comprising a threaded collar.

Assignees

• Woehr Kevin
• Braun Melsungen Ag

Inventors

• Woehr Kevin

Classifications

• A61M5/3134 Primary

  characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula · CPC title

• A61M2206/10

  Flow characteristics · CPC title

• A61M5/31 Primary

  Details · CPC title

• A61M5/347

  rotatable, e.g. bayonet or screw (A61M5/344 takes precedence) · CPC title

• A61M2039/1077

  Adapters, e.g. couplings adapting a connector to one or several other connectors · CPC title