Methods and apparatus for deploying sheet-like materials
US9179961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2010 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 30, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/0072
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Implant delivery systems for delivering sheet-like implants include a delivery shaft, an implant expander, a sheath, and a sheet-like implant. In some embodiments, the delivery shaft has a proximal end and a distal end. The implant expander is mounted to the distal end of the delivery shaft. The implant expander includes a central portion and a plurality of leg portions radiating from the central portion. The implant expander is evertable between an unstressed configuration in which a distal surface of the implant expander defines a concave surface, and a first compact configuration in which the distal surface of the implant expander defines a convex surface. The implant expander has a first lateral extent when the implant expander is free to assume the unstressed configuration. The sheath defines a lumen having a lumen diameter. At least a portion of the delivery shaft is slidably disposed in the lumen. The lumen diameter is smaller than the first lateral extent of the implant expander so that the sheath holds the implant expander in the first compact configuration when slidably disposed therein. The sheet-like implant overlays at least a portion of the distal surface of the impla…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.