Tissue-removing catheter, tissue-removing element, and method of making same
US10905459B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jun 7, 2016 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320791
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue-removing catheter includes a tissue-removing element operably connected to a drive shaft for rotation of the tissue-removing element about an axis of rotation in a cutting direction. The tissue-removing element is an integrally formed, one-piece body and has an annular tissue-removing head at the distal end of a tissue-removing element body. In some embodiments, primary tissue-removing components include an integrally formed cutting tooth and inner shearing member and are spaced angularly around the tissue-removing blade. Secondary tissue-removing components include cutting teeth and are interposed between the primary tissue-removing components around the tissue-removing blade. The tissue-removing element is made by removing material from a blank to form the primary and secondary tissue-removing components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.