Guided spiral catheter
US5730741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1997 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spiral catheter apparatus and method of use for access to, and laser or other treatment within, cavities and organs in the human body, the apparatus having a spiral member with a selected curvilinear shape, but flexible enough to assume a temporarily elongated shape such that the spiral member can be extended through the vasculature in the temporarily elongated shape and will assume the selected curvilinear shape when extended into a body cavity or organ, the spiral member formed of a superelastic or other material, the selected curvilinear shape serving to securely position the spiral member adjacent a selected surface within the body cavity or organ for laser or other treatment with a laser delivery device or other functional device on a selected surface, the apparatus further having a main catheter shaft with at least two hollow lumens extending therethrough, the first lumen for slidably guiding the main catheter shaft over the spiral member into a first position adjacent the selected surface, and the second lumen having a guide hole adjacent the distal end of the main catheter shaft for advancing a laser delivery device or other functional device through the guide hole for la…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.