Systems and methods for intraoperative segmentation

    公开(公告)号:US11445934B2

    公开(公告)日:2022-09-20

    申请号:US15329676

    申请日:2015-07-17

    Abstract: A system comprises a medical instrument, including a sensing tool, and a processing unit configured to apply a segmentation function using a first seed to a three-dimensional image of a patient anatomy to create a model; receive position data from the instrument while navigating the patient anatomy; register a position of the instrument with the model; receive data related to the patient anatomy from the sensing tool; and update the model in response to detecting a difference between the model and the patient anatomy. Updating the model includes reapplying the segmentation function using a second seed corresponding to a passageway of the patient anatomy that is not present within the model. Detecting the difference between the model and the patient anatomy includes analyzing temporal information obtained from shape data generated by the sensing tool while the instrument traverses portions of the patient anatomy not represented by the model.

    Shape sensor systems with redundant sensing

    公开(公告)号:US11266466B2

    公开(公告)日:2022-03-08

    申请号:US14908386

    申请日:2014-07-25

    Abstract: A method of operating a shape sensing apparatus comprises receiving first shape data from a first shape sensor section including a first elongated optical fiber section extending between a first location coupled to a reference fixture and a second location coupled to a first target fixture. The method further comprises receiving second shape data from a second shape sensor section including a second elongated optical fiber section extending between a third location coupled to the reference fixture and a fourth location coupled to the first target fixture. The first and third locations are maintained in a first known kinematic relationship, and the second and fourth locations are maintained in a second known kinematic relationship. The method further comprises determining a position of an end portion of the first shape sensor section using the second shape data and using the first and second known kinematic relationships.

    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.

Patent Agency Ranking