Temporary gastric device (TGD) and method of use
US9962277B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F5/003
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gastric device for a stomach having a pyloric valve comprising a biodegradable delivery structure disposable within the stomach configured to erode upon exposure to gastric fluid. A first volume filling agent retained by the biodegradable delivery structure and is permeable to water and/or gastric fluids. A second volume filling agent retained by the first volume filling agent, wherein the second volume filling agent is a hydrogel that expands in contact with the water and/or gastric fluids thereby expanding the first volume filling agent from a first displacement to a second displacement larger than the first displacement, and wherein the first volume filling agent does not pass through the pyloric valve in the normal digestive process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.