Tissue-removing catheter including screw blade and cutter driveshaft
US10258365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Mar 28, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320791
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue-removing catheter includes a cutter having an axial cavity and an opening extending from the axial cavity through the cutter to allow tissue removed from the body lumen by the annular cutting edge to pass proximally through the opening. A cutter driveshaft defines a tissue-transport passage extending longitudinally therein and in communication with the axial cavity of the cutter. A screw blade extends longitudinally within the tissue-transport passage and includes an external helical thread for transporting removed tissue proximally within the tissue-transport passage as the screw blade rotates about its axis. The cutter driveshaft having a distal end portion operatively coupled to the cutter for driving rotation of the cutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.