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    BI-REFRINGENCE COMPENSATED WAVEGUIDES
    1.
    发明申请
    BI-REFRINGENCE COMPENSATED WAVEGUIDES 有权

    公开(公告)号：US20210121069A1

    公开(公告)日：2021-04-29

    申请号：US17084056

    申请日：2020-10-29

    Applicant: Medlumics S.L.

    Inventor： Matthieu DUPERRON ,  Juan Sancho DURÁ ,  José Luis RUBIO GUIVERNAU ,  Sara María Más GÓMEZ

    IPC: A61B5/00 ,  G02B6/122 ,  G02B6/126 ,  G02B6/024

    Abstract: A medical instrument is described that includes an optical source, an optical fiber, and a waveguide patterned upon a substrate. The optical fiber receives radiation from the optical source and includes a first segment and a second segment. The second segment is rotated about an optical axis relative to the first segment. The waveguide receives radiation from the optical source and guides a beam of radiation. The waveguide includes a first waveguide segment designed to impart a first differential group delay on the beam of radiation and a second waveguide segment designed to impart a second differential group delay on the beam of radiation. A sum of the first differential group delay and the second differential group delay is substantially zero.

    METHODS, DEVICES, AND SUPPORT STRUCTURES FOR ASSEMBLING OPTICAL FIBERS IN CATHETER TIPS
    2.
    发明申请
    METHODS, DEVICES, AND SUPPORT STRUCTURES FOR ASSEMBLING OPTICAL FIBERS IN CATHETER TIPS 有权

    公开(公告)号：US20220280235A1

    公开(公告)日：2022-09-08

    申请号：US17686873

    申请日：2022-03-04

    Applicant: Medlumics S.L.

    Inventor： Sara Mas GÓMEZ ,  Juan Sancho DÚRA ,  David GONZÁLES ,  Matthieu DUPERRON ,  Moreno Carlos SANZ ,  Alexandre ROMOSCANU ,  Jorge H. JIMÉNEZ

    IPC: A61B18/24

    Abstract: A catheter includes proximal and distal sections, a shaft coupled between the proximal and distal sections, and optical fibers extending through the shaft and to the distal section of the catheter. The distal section includes a support structure that includes a proximal end, a distal end, reflective elements, and a cap disposed over a portion of the distal end of the support structure. The proximal end includes alignment receptacles. Each of the optical fibers is inserted into corresponding ones of the alignment receptacles and the alignment receptacles are shaped to maintain the optical fibers straight in the support structure. The distal end includes orifices facing different directions. Each of the optical fibers is optically aligned with corresponding ones of the lenses, reflective elements, and orifices such that the optical fibers in the support structure are straight. The cap includes optical ports aligned with the orifices.

    METHODS, DEVICES, AND SUPPORT STRUCTURES FOR ASSEMBLING OPTICAL FIBERS IN CATHETER TIPS
    3.
    发明申请
    METHODS, DEVICES, AND SUPPORT STRUCTURES FOR ASSEMBLING OPTICAL FIBERS IN CATHETER TIPS 有权

    公开(公告)号：US20230029805A1

    公开(公告)日：2023-02-02

    申请号：US17746798

    申请日：2022-05-17

    Applicant: Medlumics S.L.

    Inventor： Juan SANCHO DURÁ ,  Sara MAS GÒMEZ ,  David GONZALEZ ,  Matthieu DUPERRON ,  Carlos SANZ MORENO ,  Jorge JIMENEZ ,  Alexandre ROMOSCANU

    IPC: A61B18/18 ,  G02B6/26 ,  A61M25/00

    Abstract: Described herein are methods, devices, and support structures for assembling optical fibers in catheter tips and facilitating alignment and structural support. A method for assembling a plurality of optical fibers and lenses in a support structure for an ablation catheter includes providing a support structure with a proximal end, a body, and a distal end, the distal end including a plurality of alignment orifices or slits. A plurality of optical fibers are threaded through the alignment orifices or slits, such that each optical fiber is threaded through a corresponding alignment orifice or slit. An adhesive material is applied at each alignment orifice or slit to secure the optical fibers, and the plurality of optical fibers are then cleaved at the distal end to remove portions of the fibers extending out of the distal end. Finally, a lens is attached to each of the ends of the plurality of optical fibers.

    OPTICAL-GUIDED ABLATION SYSTEM FOR USE WITH PULSED FIELDS OR OTHER ENERGY SOURCES
    4.
    发明申请
    OPTICAL-GUIDED ABLATION SYSTEM FOR USE WITH PULSED FIELDS OR OTHER ENERGY SOURCES 有权

    公开(公告)号：US20210212755A1

    公开(公告)日：2021-07-15

    申请号：US17148506

    申请日：2021-01-13

    Applicant: Medlumics S.L.

    Inventor： Jorge JIMENEZ ,  David HERRANZ ,  James GREENE ,  Michael NAGY ,  Tyler PANIAN ,  Juan SANCHO ,  Matthieu DUPERRON

    IPC: A61B18/14 ,  A61B18/12

    Abstract: Described herein is a system including a catheter, an optical circuit, a pulsed field ablation energy source, and a processing device. The catheter includes a proximal section, a distal section, and a shaft coupled between the proximal section and the distal section. The optical circuit is configured to transport light at least partially from the proximal section to the distal section and back. The pulsed field ablation energy source is coupled to the catheter and configured to transmit pulsed electrical signals to a tissue sample. The processing device is configured to analyze one or more optical signals received from the optical circuit to determine changes in polarization or phase retardation of light reflected or scattered by the tissue sample, and determine changes in a birefringence of the tissue sample based on the changes in polarization or phase retardation.

    BI-REFRINGENCE COMPENSATED WAVEGUIDES
    5.
    发明申请
    BI-REFRINGENCE COMPENSATED WAVEGUIDES 审中-公开

    公开(公告)号：US20190192005A1

    公开(公告)日：2019-06-27

    申请号：US16222284

    申请日：2018-12-17

    Applicant: Medlumics S.L.

    Inventor： Matthieu DUPERRON ,  Juan Sancho DURÁ ,  José Luis RUBIO GUIVERNAU ,  Sara María Más GÓMEZ

    IPC: A61B5/00 ,  G02B6/122

    Abstract: A medical instrument is described that includes an optical source, an optical fiber, and a waveguide patterned upon a substrate. The optical fiber receives radiation from the optical source and includes a first segment and a second segment. The second segment is rotated about an optical axis relative to the first segment. The waveguide receives radiation from the optical source and guides a beam of radiation. The waveguide includes a first waveguide segment designed to impart a first differential group delay on the beam of radiation and a second waveguide segment designed to impart a second differential group delay on the beam of radiation. A sum of the first differential group delay and the second differential group delay is substantially zero.

    SYSTEMS AND METHODS FOR OPTICAL ANALYSIS AND CONTACT STABILITY USING ABLATION CATHETERS
    7.
    发明公开
    SYSTEMS AND METHODS FOR OPTICAL ANALYSIS AND CONTACT STABILITY USING ABLATION CATHETERS 审中-公开

    公开(公告)号：US20240207013A1

    公开(公告)日：2024-06-27

    申请号：US18392268

    申请日：2023-12-21

    Applicant: Medlumics S.L.

    Inventor： Juan SANCHO DURÁ ,  David HERRANZ ARAGONCILLO ,  Christopher BAILLEUL ,  James L. GREENE ,  Matthieu DUPERRON ,  Abel ROIGÉ

    IPC: A61B90/00

    CPC classification number: A61B90/37 ,  A61B2090/373

    Abstract: Described herein are systems and methods for performing optical signal analysis for tissue ablation using a catheter having viewports. A method includes transmitting illumination toward a target tissue via the viewport. The method also includes receiving, at a first viewport, a first scattered illumination from the target tissue and generating a first measurement signal based on the first scattered illumination. The method also includes receiving, at the first viewport, a second scattered illumination from the target tissue after the receiving of the first scattered illumination and generating a second measurement signal based on the second scattered illumination. The method also includes determining whether the viewport is in contact with the target tissue based on a first difference among the plurality of optical measurements meeting or crossing a first threshold value, wherein the first difference comprises a difference between the first and second measurement signals.

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