Toposcopic access and delivery devices
US8118774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2027 |
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 the mechanism of eversion or toposcopic expansion. In general, this may be accomplished by providing a flexible tubular device having a proximal end and a distal end. Retraction of the distal end in a proximal direction through the tubular body inverts the tube upon itself, causing an axial shortening of the overall length of the device. The original length of the device can be restored by coupling a pressurized media to the proximal end of the sleeve. If the distal end of the sleeve is temporarily restricted or closed, the pressurized media causes the distal end of the sleeve to travel distally until the full length of the sleeve has been restored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.