A technique of generating surgical information from intra-operatively acquired image data of vertebrae and pre-operatively acquired image data of the vertebrae is presented. A method implementation includes obtaining first image segments each containing a different vertebra, and second image segments each containing a different vertebra. The first image segments have been derived by processing the pre-operatively acquired image data, and the second image segments have been derived by processing the inter-operatively acquired image data. The method includes identifying one of the second image segments and one of the first image segments that contain the same vertebra, and determining a transformation that registers the identified first image segment and the identified second image segment. The method includes generating surgical information based on the transformation and the identified first image segment.

There is provided a computerized method of tracking a position of an intra-body catheter, comprising: physically tracking coordinates of the position of a distal portion of a physical catheter within the physical body portion of the patient according to physically applied plurality of electrical fields within the body portion and measurements of the plurality of electrical fields performed by a plurality of physical electrodes at a distal portion of the physical catheter; registering the physically tracked coordinates with simulated coordinates generated according to a simulation of a simulated catheter within a simulation of the body of the patient, to identify differences between physically tracked location coordinates and the simulation coordinates; correcting the physically tracked location coordinates according to the registered simulation coordinates; and providing the corrected physically tracked location coordinates for presentation.

A system for adjusting an operating state of a medical electronic device is described. In an aspect, the system includes an optical tracking system configured to detect three or more tracking markers. The system also includes a processor coupled with the optical tracking system. The processor is programmed with instructions which, when executed, configure the processor to: configure an input command by assigning at least one operating state of the medical electronic device to a particular state of at least one of the tracking markers; after receiving a priming command, identify a present state of the tracking markers based on data from the optical tracking system; compare the present state with the particular state assigned to the operating state; and based on the comparison, determine that an input command has been received and adjust the operating state of the medical electronic device to the assigned operating state.

A tracker 30 for a Head-Mounted Display, HMD, unit is provided. The tracker 30 comprises a carrier element 10 carrying one or more markers 16a, 16b that are configured to permit determining a position of the tracker 30. The carrier element 10 comprises at least one magnetic element 32 configured to cooperate with at least one magnetic element 22 provided on the HMD unit 62, or on a base element 20 that is to be fixed to the HMD unit 62, for detachably attaching the carrier element 10 to the HMD unit 62.

Systems and methods of tracking a head of a patient are provided. The system includes a motion tracking system and a head tracker. The head tracker includes a frame, at least one trackable target coupled to the frame, at least one nose pad coupled to the frame, and a pair of adjustable ear coupling members coupled to the frame and shaped for engaging with at least a portion of a back surface of an ear of the patient. The head tracker is configured to apply a clamping force to hold the trackable target in a stable spatial relationship with a location of interest in the head. The motion tracking system includes a sensor for tracking the trackable target and a processor configured for determining a position of the location of interest from the position and orientation of the trackable target and the stable spatial relationship.

A coupling system for securing and positioning a reflective marker in a navigation array is disclosed. The coupling system can include a carrier configured to hold the marker with a reflective element for detection by a surgical tracking system in a socket of the array. The carrier can include a body with an exterior for interfacing with the socket and an open end with engagement features for holding a body of the marker. The carrier is configured to visibly present the reflective element of the marker in the socket when the carrier is disposed in the socket. The carrier can be configured to securely hold the marker to the array when the marker is disposed in the carrier and the carrier is disposed in the array such that the marker cannot be removed from the carrier unless the carrier is removed from the socket.

A flexible marker system for use with a computer-assisted surgical (CAS) tracking system is disclosed. The system includes a rigid frame or instrument having a plurality of coupling locations each configured to position a navigation marker in a predetermined position and a flexible array configured to be coupled with the rigid frame or instrument. The flexible array can include an elastically deformable body and a plurality of navigation markers, where the flexible array is configured to be coupled to the rigid frame or instrument by stretching the elastically deformable body over the rigid frame or instrument such that each of the plurality of navigation markers is positioned at one of the plurality of coupling locations of the rigid frame or instrument.

A device for registering a bone for a robotic knee arthroplasty with a surgical robot can include a plate and a registration device. The plate can be engageable with the bone and can include a lateral portion, a medial portion, and a hinge. The registration device can be connected to the plate and can be configured to interface with the surgical robot for registration of the plate and the bone.

An introducer system for use with a navigation probe. The introducer system has an introducer and a probe retainer configured to selectively connect to the introducer. The probe retainer includes a receiver configured to receive a navigation probe shaft and limit movement of the navigation probe shaft in the lateral direction. A first clamp and a second clamp are connected to the receiver with the receiver located between the first clamp and the second clamp. Each of the first clamp and the second clamp is selectively engageable with respective portions of the introducer sidewall to hold the receiver at a fixed location relative to the introducer. The receiver, the first clamp, and the second clamp are configured to provide a visual path through the probe retainer and into the introducer passage.

Patient-specific guides for the Latarjet procedure, as well as surgical systems and methods of performing the Latarjet procedure to treat glenohumeral instability using such patient-specific guides are disclosed. A patient-specific coracoid guide and a patient-specific glenoid guide may be configured based on preoperatively generated three-dimensional models of the patient's shoulder anatomy. Guides may be configured for coracoid graft preparation and glenoid decortication. The coracoid graft may be placed in the desired position based on three-dimensional (3D) preoperative planning.