Nasogastric tube
US9789029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Dec 5, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J15/0003
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system comprising: a nasogastric tube comprising: (a) a main lumen having one or more proximal connectors for connecting to a source of substances or pressure; (b) at least four vacuum lumens peripherally surrounding said main lumen; and (c) at least four suction ports for sealingly drawing an inner wall of an esophagus thereagainst, each of said at least four suction ports associated with a different one of said at least four vacuum lumens, wherein said at least four suction ports are distributed between at least two different locations along a longitudinal axis of said nasogastric tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.