Methods for toposcopic sleeve delivery
US8808270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are elongate flexible medical devices which are capable of axial elongation through a mechanism of eversion or toposcopic expansion. In general, this may be accomplished by providing a flexible tubular body having a proximal end and a distal end. Retraction of the distal end in a proximal direction through the tubular body inverts the tubular body upon itself, causing an axial shortening of an overall length of the tubular device. An original length of the tubular device can be restored by coupling a pressurized media to the proximal end of the tubular device. If the distal end of the tubular device is temporarily restricted or closed, the pressurized media causes the distal end of the tubular device to travel distally until a full length of the tubular device has been restored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.