Catheter motor drive unit that facilitates combined optical coherence tomography and fluorescence-lifetime imaging
US12357163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2021 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Feb 18, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The system includes a catheter with an internal optical fiber that carries an optical beam and an optical element, which reflects the optical beam substantially orthogonal to a rotational axis of the catheter and is coupled to the end of the optical fiber. A motor drive unit (MDU) is coupled to the catheter, wherein the MDU comprises: a rotary collimator: a catheter interface, which couples the optical fiber to the rotary collimator; and a drive motor, which rotates the rotary collimator. The MDU also includes a first dichroic mirror that combines optical paths for a fluorescence-lifetime imaging (FLIm) system and an optical coherence tomography system into a single optical path, which is coupled to the optical fiber through the rotary collimator and the catheter interface. The MDU additionally includes a multispectral detector for the FLIm system, which is electrically coupled to a data acquisition unit for the FLIm imaging system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.