Tissue-removing catheter, tissue-removing element, and method of making same
US10631894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Sep 22, 2037 |
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, in some embodiments, an integrally formed one-piece body. The tissue-removing element has a tissue-removing head that includes a plurality of shearing members spaced apart around the axis of rotation. Channels separate the plurality of shearing members and extend through the radially outer surface of the tissue-removing head. In some embodiments, the shearing members include respective wedge portions that hook and cleave tissue as the tissue-removing element rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.