Needle assemblies and related methods
AssigneeB. Braun Melsungen AG
InventorsLilian Zhi Ling Lew, Teng Lip Khoo
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to catheter devices in which a bushing is disposed in an interior cavity of a catheter hub. A catheter tube and a reinforcement sleeve are sleeved over the bushing and the combination catheter tube and reinforcement sleeve wedged to the catheter hub. The reinforcement sleeve overlaps with the catheter tube at least at a distal end of the catheter hub, and at a proximal end of the catheter tube. A needle hub with a needle projects through the bushing and the catheter tube in a ready to use position.
Claims23
1-22. (canceled)
A catheter assembly comprising:
- a catheter hub having a hub body with an exterior surface and an interior surface defining an interior cavity;
- a bushing having a distal section and a proximal section disposed in the interior cavity;
- a catheter tube having a first length, a lumen, and a distal opening sleeved over the bushing;
- a reinforcement sleeve, made from a non-metallic material, having a second length sleeved over the bushing, the reinforcement sleeve overlapping with at least a section of the catheter tube at a distal end of the catheter hub to resist or prevent kinking of the catheter tube;
- a needle hub with a needle extending out a distal end of the needle hub, the needle comprising a needle shaft having a needle lumen and a needle tip, the needle shaft projecting through the bushing, the catheter tube, and the reinforcement sleeve in a ready to use position.
A method for manufacturing a catheter assembly, the method comprising:
- forming a catheter hub with a body having an interior surface defining an interior cavity;
- sleeving a catheter tube having a first length over a bushing;
- sleeving a non-metallic reinforcement sleeve having a second length over the bushing;
- securing the bushing in the interior cavity of the catheter hub;
- forming a needle hub with a needle comprising a needle shaft having a needle lumen and a needle tip and projecting the needle shaft through the bushing and the catheter tube in a ready to use position.
A catheter assembly comprising:
- a catheter hub having a hub body with an exterior surface and an interior surface defining an interior cavity;
- a bushing having an elongated distal seat and a tapered seat disposed in the interior cavity;
- a catheter tube having a first length sleeved over the bushing;
- a non-metallic reinforcement sleeve having a second length sleeved over the bushing, the second length being shorter than the first length;
- a needle hub with a needle extending out a distal end of the needle hub, said needle comprising a needle shaft having a needle lumen and a needle tip, the needle shaft projecting through the bushing, the catheter tube, and the reinforcement sleeve in a ready to use position;
- and
- wherein the reinforcement sleeve is disposed over the catheter tube or within the catheter tube.
Dependencies are inferred from the claim text.