Rapid exchange type intraluminal catheter with guiding element
US5458613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1995 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Feb 7, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraluminal catheter, particularly a dilatation catheter for PTCA procedures, which is adapted for rapid exchange during an intraluminal procedure and which also allows for the exchange of the guidewire without loss of access to the intraluminal region about the distal end of the catheter. The catheter has a guidewire lumen which extends essentially the length of the catheter. A wall of the catheter shaft which defines at least part of the guidewire lumen has a first slit from the proximal end of the catheter to an area proximal to the second guidewire port and a second slit which extends from the proximal guidewire port to a location spaced proximally from the distal end of the catheter. Also disclosed is an adapter having a slit which is continuous with the slit in the proximal extremity of the catheter shaft which facilitates separation of the guidewire and the catheter when the adapter is fixed to the proximal end of the catheter shaft. A guidewire directing element disposed in the guidewire lumen which has a flexible arm which crosses the guidewire lumen so as to guide a guidewire out the second guidewire port when the guidewire is advanced proximally through the guidewire…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.