Tracking tip for a short lumen rapid exchange catheter
US5443457A · kind A · utility
175Cited by
11References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Feb 24, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter system includes a catheter sheath and a flexible working shaft within a working lumen of the sheath. The sheath includes a monorail-type guidewire lumen at its distal end, and a stiffening member is provided adjacent a side port of the monorail guidewire lumen to inhibit prolapse of the catheter as it is introduced past a bend or curve over a guidewire. In a first embodiment, the stiffening member may be secured directly within a working lumen of the catheter body. In a second embodiment, the stiffening member may be attached to a distal end of the working shaft, typically an imaging core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.