Multi-lumen catheter coupling
US5171216A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-lumen catheter for independent delivery and withdrawal of fluids having an improved leading end to minimize stasis and an improved coupling for connection to externally located infusion and withdrawal tubes. The improved leading end has an ellipsoidally shaped tip with a smooth, uninterrupted surface and, in close proximity to the tip, a port or ports evenly spaced along the length of each lumen in staggered relation between each lumen. The improved coupling is a generally L-shaped, implantable transition device bonded to a percutaneous access device. The overall conformation of the multi-lumen catheter may be either a "U-shape" or an upright "Z-shape." Externally located infusion and withdrawal tubes are in fluid connection with an epidermal end of the transition device and a multi-lumen tube fits snugly over nipples at a subcutaneous end of the transition device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.