Method of forming revascularization channels in myocardium using a steerable catheter
US6126654A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00738
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An elongated steerable catheter for placement within a heart chamber, organ aperture or other body opening and having at least one center tube with hollow passageway for guiding a laser delivery means or other functional device to selected surfaces of a heart chamber, organ aperture or other body cavity for laser or other treatment thereon, particularly adapted for laser-assisted percutaneous transmyocardial revascularization (TMR), is disclosed herein. The steerable catheter has a handle portion at its proximal end and a controllably deflectable end portion at its distal end. The elongated center tube has a distal end, in the region where a curvature is to be formed, and a shim anchor sleeve is slidably disposed over the center tube. The shim anchor sleeve is attached to the inside wall of the outer jacket and coupled to the distal end of the center tube with a bendable shim member which extends between the distal tip of the steerable catheter and the sleeve over the center tube. Opposite the shim is a guide for a pull cable, the pull cable attached to the distal end of the steerable catheter and extending through the guide to the handle. Thus, the shim is maintained radially oppo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.