Abstract: A surgical system includes a robotic manipulator and an end effector supported by the robotic manipulator. The end effector includes a surgical tool to interact with an anatomy and a compliance mechanism. The compliance mechanism enables the surgical tool to move relative to the robotic manipulator in response to external forces/torques applied to the surgical tool by the anatomy. The compliance mechanism has a stationary portion coupled to the robotic manipulator, a moveable portion coupled to the surgical tool, and a flexible portion disposed between the stationary portion and the moveable portion. An input device has a force/torque sensor that senses a force/torque applied to the input device by a user. The force/torque sensor is mechanically isolated from the external forces/torques applied to the surgical tool.

Abstract: A method includes providing a standard control boundary defining a portion of a bone to be resected, registering a position of a soft tissue at the bone, obtaining a customized control boundary by moving a vertex of the standard control boundary based on the position of the soft tissue, and controlling a robotic device to constrain operation of a cutting tool to an area defined by the customized control boundary.

Abstract: A navigation system is disclosed which comprises a tracker having a trackable feature, a localizer configured to track states of the trackable feature within a field of view, an illumination assembly operable to direct light within the field of view, and a controller coupled to the localizer and to the illumination assembly. The controller is configured to receive the tracked states from the localizer, to determine a status condition of the tracker based on the tracked states received from the localizer, and to control the illumination assembly to direct light at the tracker such that light reflected by the tracker from the illumination assembly is visible to a user of the navigation system to communicate the status condition of the tracker.

Abstract: A sterile drape assembly is disclosed for a surgical robot. The surgical robot has a robotic arm including a plurality of links and a plurality of motorized joints for moving the plurality of links. At least one optical tracking element is located on one or more the links of the robotic arm. The sterile drape assembly has a surgical drape with an arm drape portion adapted to be disposed over the robotic arm and the one or more the links of the robotic arm. A drape belt cooperates with the arm drape portion to cover the at least one optical tracking element located on the one or more the links of the robotic arm.

Abstract: A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.

Abstract: A method for performing a surgical procedure includes planning a resection of a bone of a patient. A volume of the bone is removed according to the planned resection using a surgical tool. As the bone is removed, data corresponding to a shape and volume of the removed bone is tracked with a computer system operatively coupled to the surgical tool. A prosthesis is implanted onto the bone of the patient based on the tracked data corresponding to the shape of the removed bone.

Abstract: A fiber optic tracking sensor includes an outer tube, a plurality of optical fibers within the outer tube and including a central optical fiber and a plurality of additional optical fibers, and one or more structural members within the outer tube and configured to provide a spacing between the plurality of optical fibers such that the central optical fiber is positioned along a central longitudinal axis of the outer tube and the plurality of additional optical fibers are spaced apart from one another and from the central optical fiber.

Abstract: A system for intra-operatively registering a pelvis comprising an acetabulum with a computer model of the pelvis in a coordinate system. The system may include: a) a surgical navigation system including a tracking device; and b) at least one computing device in communication with the surgical navigation system. The at least one computing device: i) receiving first data points from first intra-operatively collected points on an articular surface of the acetabulum, the first data points collected with the tracking device; ii) receiving a second data point from a second intra-operatively collected point on the pelvis, the second data point collected with the tracking device, the second data point corresponding in location to a second virtual data point on the computer model; and iii) determining an intra-operative center of rotation of the femur relative to the pelvis from the first data points.

Abstract: Systems and methods for calibration of a surgical tool having a tracker. At least one camera captures images of the tracker at a first exposure and captures images of the surgical tool at a second exposure with a different exposure time and/or illumination than the first exposure. Controller(s) recognize a pose of the tracker based on the first exposure images and recognize a geometry of the surgical tool based on the second exposure images. The controller(s) correlate the recognized pose of the tracker and the recognized geometry of the surgical tool to define a relationship between the tracker and the surgical tool and calibrate the surgical tool based on the defined relationship.

Abstract: A mounting system for coupling first and second surgical components. The mounting system comprises a first mounting portion associated with the first surgical component, a second mounting portion associated with the second surgical component and comprising a tensioner movable between a first position and a second position, and a sterile barrier assembly. The sterile barrier assembly comprises a coupling configured to releasably secure to the first mounting portion and to releasably receive the second mounting portion when the tensioner of the second mounting portion is in the first position, and a plurality of kinematic couplers configured to engage the mounting portions and arranged to provide a kinematic coupling between the mounting portions through the sterile barrier assembly to constrain six degrees of freedom of movement between the surgical components when the tensioner of the second mounting portion is in the second position.

Abstract: A system for irrigating an infected implant area, the system comprising an irrigation tool, and a navigation system for tracking movement of the irrigation tool. The system also includes a processing circuit programmed to determine an area to be irrigated, the irrigation area including at least a surface of an implant and patient tissue, and control the irrigation tool to automatically adjust a speed of a spray of irrigation fluid from the irrigation tool to provide a first speed when debridement is of the surface of the implant and a second speed when the debridement is of the patient tissue.

Abstract: A femoral prosthetic component includes a patellar guide portion, a pair of condyles projecting from the guide portion and forming an intercondylar notch therebetween, a bearing surface, and an interface surface configured to face a resected surface of a femur. The interface surface comprises an anterior face and a posterior face, and is substantially contoured between the anterior and posterior face to match a contoured surface of the femur. The substantially contoured interface surface may include at least one planar surface portion to about a flat cut portion in the surface of the femur. This planar surface portion may be a distal flat at a distal face of the interface surface. The contoured interface surface may alternatively include a plurality of planar surface portions. The femoral prosthetic component is configured such that preparation of the bone to match the interface surface results in minimal resection of the distal femur.

Abstract: Systems and methods to track an object within an operating room with a camera unit. The camera unit includes a first optical sensor with sensing elements to sense light in a near-infrared spectrum and a second optical sensor to sense light in a visible light spectrum. A controller is in communication with the first and second optical sensors. The controller obtains, from the second optical sensor, data related to the object within the operating room. The controller modifies control of the sensing elements of the first optical sensor based on the data of the object obtained by the second optical sensor.

Abstract: Systems, methods, and guidance techniques for guiding placement of a robotic manipulator relative to an anatomy. A localizer tracks the robotic manipulator and the anatomy. Controller(s) obtain workspace parameters of the robotic manipulator and capture, from the localizer, a current state of the robotic manipulator relative to the anatomy. The controller(s) capture, from the localizer, states of the anatomy in response to movement of the anatomy according to a prescribed manner or a predetermined manner and determine operative parameters of the anatomy based on the captured states. The controller(s) compare the workspace parameters to the operative parameters to determine a desired state for the robotic manipulator relative to the anatomy, whereby the workspace parameters of the robotic manipulator have an acceptable relationship with respect to the operative parameters of the anatomy. The controller(s) guide placement of the robotic manipulator from the current state to the desired state.

Abstract: A robotic surgical system includes a kinematic chain defined by components of a manipulator and a surgical tool including an energy applicator. At least one controller identifies that one or more components of the kinematic chain other than the energy applicator is either experiencing or will experience an undesired orientational motion. The at least one controller changes operation of the manipulator to mitigate for the present or expected undesired orientational motion.

Abstract: A surgical system for manipulating an anatomy includes a surgical tool, a robotic manipulator configured to support and move the surgical tool, and one or more controllers that activate a first virtual boundary delineating a first portion of the anatomy that is allowed to be removed by the surgical tool from a second portion of the anatomy that is protected from removal by the surgical tool. The one or more controllers control the robotic manipulator for enabling the surgical tool to perform fine cutting of the first portion in relation to the first virtual boundary. The one or more controllers control the robotic manipulator for enabling the surgical tool to perform bulk cutting of the second portion of the anatomy.

Abstract: A surgical system includes a sensor positionable in an operating room and configured to detect a position of an object in the operating room. The surgical system also includes a controller configured to assign a desired time milestone for each step of a surgical workflow, automatically distinguish the steps of the surgical workflow based on a change in the position of the object, based on distinguishing the steps of the surgical workflow, record a comparison of an actual timing of each step of the surgical workflow with the desired time milestone for each step of the surgical workflow, and generate feedback relating to usage of the operating room based on the comparison.

Abstract: A mixed reality system includes a head-mounted device (HMD) having an HMD coordinate system and a camera to capture images. A localizer has a localizer coordinate system and position sensors supported by a housing to track a pose of a real object. Registration markers are configured to be recognized from the captured images of the camera of the HMD. The registration markers are disposed on the housing of the localizer in a predetermined spatial relationship with respect to the localizer coordinate system. At least one controller is configured to utilize the registration markers recognized from the captured images to register the localizer coordinate system and the HMD coordinate system.

Abstract: A method of calculating leg length discrepancy of a patient including: receiving patient bone data associated with a lower body of the patient; identifying anatomical landmarks in the patient bone data; orienting a first proximal landmark and a second proximal landmark relative to each other and an origin in a coordinate system; aligning a first axis associated with a first femur and a second axis associated with a second femur with a longitudinal axis extending in a distal-proximal direction, wherein the first and second distal landmarks are adjusted according to the alignment of the first and second axes; calculating a distance between the first and second distal landmarks in the distal-proximal direction along the longitudinal axis; and displaying at least one of the distance or a portion of the patient bone data on a display screen.

Abstract: A surgical system includes a base, a robotic arm extending from the base and comprising a plurality of segments, a first tracker secured to the base, a second tracker secured to a segment of the plurality of segments of the robotic arm, and a detection device configured to determine an arrangement of the first tracker and the second tracker.