METHOD AND SYSTEM FOR CONTROLLING FLEXIBLE DEVICES IN PRESENCE OF ABNORMAL SENSOR SIGNALS

    公开(公告)号:US20220273280A1

    公开(公告)日:2022-09-01

    申请号:US17762327

    申请日:2020-09-25

    Abstract: A system including a flexible catheter configured to articulate along a degree of freedom. An actuator is disposed at a proximal portion of the flexible catheter. The actuator is configured to actuate the flexible catheter along the degree of freedom. An articulation sensor is configured to provide articulation sensor signals representing articulation of the flexible catheter. An actuator sensor is configured to provide actuator sensor signals representing movement of the actuator. A controller is coupled to the actuator and configured to, based on determining that a state of a first articulation sensor signal prevents or hinders the first articulation signal from being used as a feedback signal for controlling the actuator to: determine an articulation estimate of the flexible catheter based on a model of the flexible catheter applied to a first actuator sensor signal; and, control the actuator based on the articulation estimate.

    ARTICULATION CONTROL OF FLEXIBLE MEDICAL SYSTEMS

    公开(公告)号:US20230320711A1

    公开(公告)日:2023-10-12

    申请号:US18298495

    申请日:2023-04-11

    CPC classification number: A61B17/00234 A61B2017/00318

    Abstract: Methods and systems for controlling articulation of a system are described. In some embodiments, a parameter related to a curvature of one or more portions of an articulable portion of elongated body may be determined. The elongated body may include a channel through which a tool may be inserted. Articulation of the articulable portion of the elongated body may be controlled based at least in part on the determined parameter in some modes of operation including when a tool is moved relative to the channel of the elongated body.

    CONTROL AND FEEDBACK BASED ON INSERTION FORCE

    公开(公告)号:US20230017745A1

    公开(公告)日:2023-01-19

    申请号:US17784021

    申请日:2020-12-09

    Abstract: A machine is configured to access force data generated by a force sensor, where the force sensor is communicatively coupled to a proximal portion of a flexible elongate device that has a distal portion configured to travel within an environment, and where the force sensor is configured to detect forces and generate the force data therefrom. The machine, based on the force data, identifies an insertion force encountered by the distal portion of the flexible elongate device from among the forces detected by the force sensor. The machine then, based on the identified insertion force, initiates a responsive operation performed by a control system communicatively coupled to the flexible elongate device.

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