Spectroscopic tissue identification for balloon intravascular lithotripsy guidance

    公开(公告)号:US12207870B2

    公开(公告)日:2025-01-28

    申请号:US17343059

    申请日:2021-06-09

    Abstract: A catheter system (100) for placement within a treatment site (106) at a vessel wall (208A) or a heart valve includes an energy source (124), a balloon (104), an energy guide (122A), and a tissue identification system (142). The energy source (124) generates energy. The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) has a balloon wall (130) that defines a balloon interior (146). The balloon (104) is configured to retain a balloon fluid (132) within the balloon interior (146). The energy guide (122A) is configured to receive energy from the energy source (124) and guide the energy into the balloon interior (146) so that plasma is formed in the balloon fluid (132) within the balloon interior (146). The tissue identification system (142) is configured to spectroscopically analyze tissue within the treatment site (106). A method for treating a treatment site (106) within or adjacent to a vessel wall (208A) or a heart valve can utilize any of the catheter systems (100) described herein.

    ACOUSTIC TISSUE IDENTIFICATION FOR BALLOON INTRAVASCULAR LITHOTRIPSY GUIDANCE

    公开(公告)号:US20220008130A1

    公开(公告)日:2022-01-13

    申请号:US17365451

    申请日:2021-07-01

    Abstract: A catheter system (100) for treating a treatment site (106) within or adjacent to a vessel wall (208A) or a heart valve within a body (107) of a patient (109) includes an energy source (124), a balloon (104), an energy guide (122A), and a tissue identification system (142). The energy source (124) generates energy. The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) includes a balloon wall (130) that defines a balloon interior (146). The balloon (104) can be configured to retain a balloon fluid (132) within the balloon interior (146). The energy guide (122A) is configured to receive energy from the energy source (124) and guide the energy into the balloon interior (146) so that plasma bubbles (134) are formed in the balloon fluid (132) within the balloon interior (146). The tissue identification system (142) can be configured to acoustically analyze tissue within the treatment site (106).

    PERCUTANEOUS BLOOD PUMP WITH MOTOR CONNECTION

    公开(公告)号:US20250128045A1

    公开(公告)日:2025-04-24

    申请号:US18923829

    申请日:2024-10-23

    Abstract: A percutaneous circulatory support device including a percutaneous blood pump coupled to a distal end region of an elongate shaft at a junction. The percutaneous blood pump is configured to pump blood through a housing of the percutaneous blood pump during use. The junction includes an end cap at a proximal end of the percutaneous blood pump surrounding and secured to a distal end region of the elongate shaft at the junction. The junction may include a fillet of material surrounding a proximal end region of the end cap and extending proximally thereof and surrounding an exterior surface of the elongate shaft. The proximal end region of the end cap may include an annular side wall with one or more apertures and/or one or more grooves extending into the annular side wall in which the fillet of material extends into.

    CIRCULATION SUPPORT DEVICES, SYSTEMS, AND METHODS

    公开(公告)号:US20250099736A1

    公开(公告)日:2025-03-27

    申请号:US18897235

    申请日:2024-09-26

    Abstract: A mechanical circulatory support system may include a blood pump, an elongate tube coupled with the blood pump and extending proximally from the blood pump, and a flexible elongate shaft configured to be removably positioned within the elongate tube. The blood pump may be configured to pump blood from a ventricle of a heart of a patient to vasculature of the patient. The elongate shaft may be inserted into the elongate tube prior to or during delivery of the blood pump to the heart to achieve a desired pushability along the elongate tube. The elongate shaft may be removed from the elongate tube to increase a flexibility along the elongate tube to mitigate movement at a proximal end of the elongate tube being transferred to the blood pump positioned in the heart.

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