HEMOSTASIS VALVE FOR EXPANDABLE-TYPE CATHETER

    公开(公告)号:US20240335648A1

    公开(公告)日:2024-10-10

    申请号:US18597609

    申请日:2024-03-06

    IPC分类号: A61M39/06 A61B17/00

    摘要: The disclosed technology includes a hemostasis valve assembly comprising an elongate body with a first valve disposed near the proximal end and a second valve disposed near the distal end and spaced apart from the first valve. The first valve can allow a member to extend through the first valve and the second valve can allow the member to extend through the second valve. The elongate body can define a cavity comprising a sloped portion including a first distance between an inner surface of the elongate body and the longitudinal axis near the distal end that is greater than a distance between the inner surface and the longitudinal axis near the proximal end such that a gas is directed along the sloped portion to accumulate at an accumulation region in the cavity near the distal end when a member extends through the first valve.

    Accurate basket catheter tracking

    公开(公告)号:US12076165B2

    公开(公告)日:2024-09-03

    申请号:US18450529

    申请日:2023-08-16

    IPC分类号: A61B5/00 A61B5/06

    摘要: In one embodiment, a system includes a catheter including an insertion tube and a first position sensor, a pusher including a second position sensor, and an expandable assembly including flexible strips disposed circumferentially around a distal portion of the pusher, with first ends of the strips connected to the distal end of the insertion tube and second ends of the strips connected to the distal portion of the pusher, the flexible strips bowing radially outward when the pusher is retracted, processing circuitry to receive a respective position signal from the first and second position sensors, compute location and orientation coordinates for the position sensors subject to a constraint that the position sensors are coaxial and have a same orientation, compute a distance between the computed location coordinates of the position sensors, and find position coordinates of the flexible strips responsively to at least the computed distance.