Delivery mechanism for implantable stent
US6514261B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/9517
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A delivery mechanism for an implantable stent which provides a high mechanical advantage to the surgeon and convenient operation so as to facilitate smooth withdrawal of an outer catheter sheath following placement of the stent in the desired location within the patient's vessel. Preferred embodiments include a moving rail actuated by a V-shaped lever, a hydraulic actuator, a rack and pinion drive, and a power screw system. The delivery mechanism has a movable member that is attached to the outer catheter sheath so that actuating the mechanism results in an incremental movement of the moveable member, which in turn results in an incremental movement of the outer catheter sheath. Once the outer catheter sheath is retracted from the stent, the stent is deployed into the patient's vessel and the remaining parts of the mechanism, including an inner tube, an atraumatic tip, and a stabilizing element, are easily removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.