System and method for delivering helical stents
US5797952A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Jun 21, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for delivering self-expanding stents and other helical prostheses comprises a catheter body having a rotatable barrel at its distal end. The helical prosthesis is received within a helical channel on the rotatable barrel and covered with a retractable cover. Optionally, the channel includes a split membrane for covering the helical stent and preventing direct engagement by the stent against the cover. As the cover is retracted, the stent deploys radially outward and engages an inner wall of the lumen in which it is being deployed. Uncoiling or unwinding of the stent is accommodated by rotation of the barrel so that the stent is not dragged against the inner luminal wall potentially damaging said wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.