Tissue extraction devices and methods
US9636170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The tissue cutting device comprises an elongated assembly including both an outer sleeve and an inner sleeve. The outer sleeve has a tissue-receiving window, and the inner sleeve has a distal end which cuts tissue as the inner sleeve is advanced past the window. The tissue is received into a lumen of the inner sleeve, and the inner sleeve lumen is typically enlarged in a proximal direction to reduce the tendency of resected tissue to lodge therein. The tissue displacement member is optionally provided at a distal end of the outer sleeve to further aid in dislodging tissue which becomes captured in a distal end of the inner sleeve of the lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.