Oroesophageal, instrument introducer assembly and method of use
US5279610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oroesophageal introducer assembly for atraumatically introducing a relatively large instrument such as an echotransducer positioned on the distal end of a gastroscope for performing an echocardiographic procedure. The introducer assembly includes an outer sheath having a tapered distal end and a passageway extending therethrough for passing the large instrument therethrough. The assembly further includes a dilator extending from the tapered distal end of the outer sheath for atraumatically dilating the esophagus during introduction. The assembly further includes an introducer guide for initial oral introduction into the esophagus and stomach of the patient. The outer sheath and dilator are interconnected at the proximal ends thereof for extending the tapered distal end of the dilator from the tapered distal end of the outer sheath. The interconnected outer sheath and dilator are then introduced atraumatically into the esophagus over the introducer guide. When positioned in the esophagus, the dilator is disconnected from the outer sheath, and the dilator and introducer guide are removed from the outer sheath and patient. A relatively large diagnostic instrument is introduced thro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.