Endoscope for bile duct and pancreatic duct
US4979496A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Apr 3, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/018
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope for bile duct and pancreatic duct of double scope system including a mother endoscope having an insertion unit to be inserted into duodenum and a daughter endoscope having an insertion unit to be inserted via papilla through a forceps channel of the insertion unit. The endoscope is provided with a flexible guide tube to be inserted into bile duct and pancreatic duct through a forceps channel from the insertion hole of the mother endoscope, and the insertion unit of the daughter endoscope can be inserted into this guide tube. Further, the endoscope is provided with a core bar, which is removably mounted on one end of the guide tube and is designed to be of such length that its tip does not protrude from the tip of the guide tube when it is inserted into the guide tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.