OFF-AXIS VISUALIZATION SYSTEMS
    54.
    发明申请

    公开(公告)号:US20200305693A1

    公开(公告)日:2020-10-01

    申请号:US16902915

    申请日:2020-06-16

    Abstract: A system for visualizing a tissue region of interest comprises a deployment catheter defining a lumen and a hood coupled to and extending distally from the deployment catheter. The hood has a low-profile configuration within a delivery sheath and a deployed configuration when extended distally of the delivery sheath. The hood in the deployed configuration defines an open area in fluid communication with the lumen. A distal portion of the deployment catheter extends into the open area. The system also comprises an imaging element coupled to an imager support member. When the hood is in the deployed configuration, the imaging element is configured to extend distally of the distal portion of the deployment catheter while the imager support member extends within the deployment catheter.

    Methods and apparatus for efficient purging

    公开(公告)号:US10772492B2

    公开(公告)日:2020-09-15

    申请号:US16457806

    申请日:2019-06-28

    Abstract: A method of inhibiting flow of a purging fluid from a device comprises positioning an imaging hood in proximity to a tissue region to be visualized. The imaging hood includes a distal membrane which defines a main aperture. The imaging hood and the distal membrane define an open area. The method also comprises introducing the purging fluid into a proximal portion of the open area. The proximal portion is bounded by a proximal membrane including a plurality of apertures. The method also comprises pressurizing the proximal membrane with the purging fluid to a partially extended state in which the purging fluid flows through the plurality of apertures and through the main aperture. The method also comprises pressurizing the proximal membrane with the purging fluid to a blocking extended state in which the proximal membrane obstructs the main aperture to block the flow of the purging fluid through the main aperture.

    DELIVERY OF BIOLOGICAL COMPOUNDS TO ISCHEMIC AND/OR INFARCTED TISSUE

    公开(公告)号:US20200054200A1

    公开(公告)日:2020-02-20

    申请号:US16596904

    申请日:2019-10-09

    Abstract: The delivery of biological compounds to ischemic and/or infarcted tissue are described herein where such a system may include a deployment catheter and an attached imaging hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. Additionally, any number of therapeutic tools can also be passed through the deployment catheter and into the imaging hood for performing any number of procedures on the tissue for identifying, locating, and/or accessing ischemic and/or infarcted tissue.

    Methods and apparatus for efficient purging

    公开(公告)号:US10368729B2

    公开(公告)日:2019-08-06

    申请号:US15350796

    申请日:2016-11-14

    Abstract: A method of inhibiting a flow of a purging fluid from a tissue visualization device comprises positioning an imaging hood attached to a distal end of a flexible elongate shaft in proximity to a tissue region to be visualized The method also comprises introducing the purging fluid into an inflation member suspended within an open area of the imaging hood. The inflation member includes at least one aperture on a proximal portion of the inflation member. The method also comprises inflating the inflation member to a partially inflated state in which the inflation member is circumferentially separated from an inner surface of the hood to form an annular flow path for the purging fluid from the at least one aperture, between the inner surface of the hood and the inflation member, and into fluid communication with an environment external to the hood. The method also comprising inflating the inflation member to a blocking inflated state in which the inflation member expands into contact with the imaging hood to block the flow from the at least one aperture to the annular flow path.

Patent Agency Ranking