A surgical device for intraoperative angle measurements during surgery. The surgical device includes a shaft having a bone probe configured to remain in contact with cortical bone of the patient while a user orients the shaft to a desired orientation. The device includes a housing having an electronic circuit configured to measure an orientation angle. The electronic circuit may include: an input device configured to receive user input data; a measurement circuit configured to measure a change in orientation of the shaft in relation to a reference axis; a control circuit coupled to the input device and measurement circuit and configured to determine the orientation angle of the shaft relative to the reference axis; and an output device configured to communicate the orientation angle to the user. The device includes a power supply configured to provide power to the electronic circuit.

A surgical instrument comprising a sensing system is disclosed.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

Systems and methods are disclosed in which changes in the position and/or orientation of an anatomical structure or of a surgical tool can be measured quantitatively during surgery. In some embodiments, the systems and methods disclosed herein can make use of inertial motion sensors to determine a position or orientation of an instrument or anatomy at different times and to calculate changes between different positions or orientations. In other embodiments, such sensors can be utilized in conjunction with imaging devices to correlate sensor position with anatomical landmarks, thereby permitting determination of absolute angular orientation of a landmark. Such systems and methods can facilitate real-time tracking of progress during a variety of procedures, including, e.g., spinal deformity correction, etc.

Apparatus and methods are disclosed for determining and placing a first bony segment in relation with a second bony segment, both segments belonging to the same bone, including cutting said bone partially, to separate it into the first and second bony segment. The two bony segments are linked together by a bony hinge and placing the two boney segments in relation to each other may include distracting both bony segments around said hinge. The hinge may be configured to allow distraction of both bony segments around a single degree of freedom of the hinge and accommodate corrections in two substantially orthogonal planes.

A surgical robotic system includes: a surgical table; a plurality of movable carts being oriented toward the surgical table, each of which includes a robotic arm, and an alignment unit configured to determine an orientation of the movable cart and the robotic arm relative to the surgical table; and a computer coupled to each of the plurality of movable carts and configured to calculate a yaw angle for each of the plurality of movable carts.

A control arm assembly for controlling a robot system includes a gimbal that is moveable and rotatable about three axes, and a handle assembly coupled to the gimbal. The handle assembly includes a body portion having a controller disposed therein and a first actuator disposed thereon. The first actuator is mechanically coupled to the controller via a four-bar linkage such that actuation of the first actuator causes mechanical movement of a component of the controller which is converted by the controller into an electrical signal.

A motorized surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor, a control circuit, and a position sensor. The displacement member is configured to translate. The motor is coupled to the displacement member to translate the displacement member. The control circuit is coupled to the motor. A position sensor is coupled to the control circuit. The position sensor is configured to measure the position of the displacement member and to measure an articulation angle of an end effector relative to a longitudinally extending shaft. The control circuit is configured to determine the articulation angle between the end effector and the longitudinally extending shaft and set motor velocity based on the articulation angle.

A method for the fluoroscopic registration in real time for placement of pedicle screws or the like during spinal surgery, comprising creating a lateral image in which a pedicle has appropriate anatomic contour and superior endplate, advancing a pin into the pedicle starting in the posterior cortex and moved far enough into the pedicle to anchor the pin, rotating the fluoroscopy to obtain an AP image of the pedicle which is moved to render the pin to be neutral in a cephalad to candad direction, and positioning a pedicle screw in the pedicle following 2D contour mapping generated by manual or automated templating.

A combination of a first assembly for guiding resection of a femur and tibia of a knee joint and a second assembly including femoral and tibial knee components. The combination of the first assembly and the second assembly provides optimal placement and positioning of the femoral and tibial knee components to achieve near-normal knee kinematics and tension. The preparation for and placement of the prosthetic knee components provides medial-pivoting kinematics mimicking that of the natural knee thereby promoting improved outcome for the patient.