Endoscopic tool for facilitating injection of a fluid into a submucosal layer of tissue
US11771452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Jun 13, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscopic tool for facilitating injection of fluid into a submucosal layer of tissue includes a first cannula, a second cannula, and means for attaching the first cannula to a mucosal layer of tissue. The first cannula has a distal end and a proximal end opposite the distal end. The second cannula is adapted to be coupled to a source of fluid and carries a needle at a distal end thereof. The means for attaching the first cannula to the mucosal layer draws the mucosal layer, which enlarges the submucosal layer. Fluid is then injected into the enlarged portion of the submucosal layer via the needle, thereby creating a raised portion of tissue around the injection site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.