Tissue-removing catheter with torque control
US11931063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Apr 4, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue-removing catheter for removing tissue in a body lumen includes an elongate body having an axis and proximal and distal end portions spaced apart from one another along the axis. A tissue-removing element is mounted on the distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen. A motor operatively engages the elongate body for driving rotation of the elongate body and tissue-removing element mounted on the elongate body. A controller is operatively connected to the motor and configured to perform a torque response routine to control a speed of the motor based on a set PWM value of the motor and a detected current applied to the motor during rotation of the elongate body and tissue-removing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.