Assembly And Method For Mounting A Tracker To Bone

    公开(公告)号:US20240407852A1

    公开(公告)日:2024-12-12

    申请号:US18734863

    申请日:2024-06-05

    Abstract: A tracker mount includes a fastener assembly, a sleeve assembly to be disposed over the fastener assembly, and a tracker interface coupled to the sleeve assembly and configured to removably attach to a tracker. The fastener assembly includes a fastener adapted to be attached to a bone and a first keying feature. The sleeve assembly includes a sleeve, which includes a body defining a channel including a second keying feature to interface with the first keying feature to prevent rotation of the sleeve relative to the fastener assembly. The sleeve assembly includes an engagement feature at a distal part of the sleeve to engage a surface of the bone.

    Navigation tracker with kinematic connector assembly

    公开(公告)号:US10537395B2

    公开(公告)日:2020-01-21

    申请号:US15601127

    申请日:2017-05-22

    Abstract: A kinematic connector assembly for kinematically coupling two objects is provided. The kinematic connector assembly comprises a receiver defining a cavity and having a plurality of constraint surfaces accessible in the cavity. The kinematic connector assembly further comprises a key having a triplicity of kinematic elements to repeatably position the key in the receiver. The kinematic connector assembly further comprises a preloading mechanism having a load member movable between a clamped position and an unclamped position to secure the key in the receiver, so that the kinematic elements contact the receiver at the plurality of constraint surfaces such that the key is kinematically constrained to the receiver by being constrained by six points of contact with the receiver.

    Bone Plate For Attaching To An Anatomic Structure

    公开(公告)号:US20210153918A1

    公开(公告)日:2021-05-27

    申请号:US17165220

    申请日:2021-02-02

    Abstract: A plate for attaching to an anatomic structure with fasteners. A body defines openings for receiving the fasteners, and includes a bottom surface that is concave. The plate includes bone pad surface, and a spike extends away from the bone pad surface. The bone pad surface is oriented at an angle relative to the bottom surface to prevent further penetration of the spike into the anatomic structure beyond a predetermined depth. The bone pad surface may be oriented at an obtuse angle relative to the bottom surface. The bone pad surfaces may be planar or concave, or contoured to a corresponding profile of the anatomic structure. The spikes may be pyramidal or conical. At least one side of the spike may be integral and continuous with the bottom surface. The side may have a radius of curvature equal to that of the bottom surface.

    Navigation Tracker With Kinematic Connector Assembly

    公开(公告)号:US20170340395A1

    公开(公告)日:2017-11-30

    申请号:US15601127

    申请日:2017-05-22

    Abstract: A kinematic connector assembly for kinematically coupling two objects is provided. The kinematic connector assembly comprises a receiver defining a cavity and having a plurality of constraint surfaces accessible in the cavity. The kinematic connector assembly further comprises a key having a triplicity of kinematic elements to repeatably position the key in the receiver. The kinematic connector assembly further comprises a preloading mechanism having a load member movable between a clamped position and an unclamped position to secure the key in the receiver, so that the kinematic elements contact the receiver at the plurality of constraint surfaces such that the key is kinematically constrained to the receiver by being constrained by six points of contact with the receiver.

    CONNECTOR ASSEMBLY AND METHOD FOR ATTACHING A TRACKER BODY TO A TRACKER SUPPORT ARM

    公开(公告)号:US20230110909A1

    公开(公告)日:2023-04-13

    申请号:US18076446

    申请日:2022-12-07

    Abstract: A connector assembly for attaching a tracker body to a tracker support arm. The connector assembly includes a receiver coupled to the tracker body and defining a cavity. The connector assembly includes a key coupled to the tracker support arm and including a loading surface. The key is insertable into the cavity of the receiver. The connector assembly includes a preloading mechanism operably attached to the receiver and including a load member disposed in the receiver. The load member is arranged to contact the loading surface of the key to constrain the key to the receiver, and to thereby attach the tracker body to the tracker support arm.

    Tracking device using a bone plate for attaching to a patient's anatomy

    公开(公告)号:US10932837B2

    公开(公告)日:2021-03-02

    申请号:US15978107

    申请日:2018-05-12

    Abstract: A tracking device for a surgical navigational system. A tracking head includes tracking elements configured to communicate tracking information to the surgical navigation system. An extension arm is configured to be coupled to the tracking head, and a bone plate is configured to be coupled to the extension arm. The bone plate is further configured to be coupled to anatomic structure and includes openings each configured to receive a fastener. A central opening may be provided to receive an additional fastener for coupling the extension arm to the bone plate. A recess within the top surface may receive the base plate of the extension arm. Spikes of the bone plate are configured to penetrate the anatomic structure and, in conjunction with the fasteners, prevent movement of the tracking device. The bottom surface is concave between the spikes to define a space configured to accommodate portions of the anatomic structure.

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