Multi-channel optical coupler for spinning catheter
AssigneeInfraReDx, Inc.
InventorsAndres Zuluaga, Brett E. Bouma
Life of this patent
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Abstract
A system for identifying vulnerable plaque includes a catheter having a collection fiber and a delivery fiber extending therethrough. The catheter is engaged to a distal face of a housing configured to spin about an axis. The proximal face of the housing has a central aperture. First and second optical relays extend respectively between the central aperture and a central port on the distal face and between a detector and an eccentric port on the distal face. The central and eccentric ports are in optical communication with the delivery and collection fibers respectively.
Claims24
A multi-channel optical coupler comprising:
- a housing configured to spin about an axis, the housing having a proximal face and a distal face;
- walls forming a central aperture on the proximal face, the central aperture intersecting the axis;
- a first optical relay for guiding a first beam from the central aperture to a central port on the distal face;
- and
- a second optical relay for guiding a second beam to a detector from an eccentric port on the distal face.
A system for identifying vulnerable plaque, the system comprising:
- a catheter having a collection fiber and a delivery fiber extending therethrough;
- a housing configured to spin about an axis, the housing having a proximal face and a distal face, the proximal face having walls forming a central aperture and the distal face being engaged with the catheter;
- a first optical relay extending between the central aperture and a central port on the distal face, the central port being in optical communication with the delivery fiber;
- and
- a second optical relay extending between a detector and an eccentric portion the distal face, the eccentric port being in optical communication with the collection fiber.
A method for providing optical coupling to a collection fiber and a delivery fiber, the method comprising:
- transmitting a delivery beam into a central aperture of a housing;
- guiding the delivery beam from the central aperture to a central port in the housing, the central port being in optical communication with the delivery fiber;
- receiving a collection beam from all eccentric port in the housing, the eccentric port being in optical communication with the collection fiber;
- and
- guiding the collection beam to a detector.
Dependencies are inferred from the claim text.