Shape sensor systems with redundant sensing

    公开(公告)号:US12114936B2

    公开(公告)日:2024-10-15

    申请号:US17576696

    申请日:2022-01-14

    CPC classification number: A61B34/20 A61B5/065 A61B2034/2061 A61B2090/0818

    Abstract: A method of operating a shape sensing apparatus comprises receiving shape data from a first shape sensor. The first shape sensor includes a first plurality of optical cores extending between a first section and a second section of an elongated optical fiber. The method further comprises receiving shape data from a second shape sensor. The second shape sensor includes a second plurality of optical cores extending between the first and second sections of the elongated optical fiber. The method further comprises determining a shape of the elongated optical fiber between the first and second sections by combining the shape data from the first and second shape sensors.

    Arm with a combined shape and force sensor

    公开(公告)号:US11116590B2

    公开(公告)日:2021-09-14

    申请号:US16139451

    申请日:2018-09-24

    Abstract: A system comprises an arm including a bendable section and a force transmission mechanism. The system also comprises an actuation mechanism coupled to the force transmission mechanism to bend the bendable section. The system also comprises an electronic data processor configured to receive sensor data about the bendable section and determine external force information about at least one of a magnitude or a direction of an external force applied to the arm from the sensor data. the processor is also configured to determine a pose of the bendable section from the sensor data and generate control information for the actuation mechanism to maintain the pose of the bendable section in a stationary configuration as the external force is applied to or withdrawn from the arm.

    Methods and Apparatus to Shape Flexible Entry Guides for Minimally Invasive Surgery

    公开(公告)号:US20210228063A1

    公开(公告)日:2021-07-29

    申请号:US17190936

    申请日:2021-03-03

    Abstract: An apparatus for performing surgical procedures is disclosed including a flexible entry guide tube and a first steering device. The guide tube has one or more lumens extending along its length from a proximal end to substantially at or near a distal end. At least one of the one or more lumens is an instrument lumen with open ends to receive a flexible shaft of a surgical tool. The first steering device is insertable into the instrument lumen to shape the guide tube as it is inserted through an opening in a body and along a path towards a surgical site. The apparatus may further include a flexible locking device to couple to the flexible entry guide tube and selectively rigidize the guide tube to hold its shape. The guide tube may be steered by remote control with one or more actuators.

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