Method for forming access route to bile duct
US12390623B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 28, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Feb 29, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/09
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of forming an access route to the bile duct includes: forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct; and dilating a lumen of the tunnel more than when it was formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.