A spike for a bone axis digitizer device may include a leading member having a pointy end configured for penetrating a bone or cartilage, the leading member defining a penetration axis. An anti-rotation feature may project laterally from a surface of the leading member. The spike has a first penetration segment and a second penetration segment, the first penetration segment including the pointy end and configured for leading a penetration of the spike in the bone or cartilage, and the second penetration segment having the at least one anti-rotation feature. A bone axis digitizer device with the spike may also be provided.

Surgical systems for use in surgical procedures utilizing robotic devices. The surgical system having one or more components for housing a sensor or one or more tools for anchor or sensor delivery. The surgical system may include a surgical sensor anchor and/or a surgical sensor anchor delivery tool. A method of performing a robotically assisted surgical procedure, comprising using a surgical sensor anchor during a surgical procedure which utilizes a robot to track movement of at least one portion of a body structure undergoing a surgical procedure or to track movement of a body structure near a surgical site.

A biopsy marker may include three shaped portions arranged sequentially along an axis, each shaped portion having a first surface and a second surface parallel to the first surface. A first narrow portion connects a first of the three shaped portions to a second of the three shaped portions. A second narrow portion connects the second of the three shaped portions to a third of the three shaped portions. The first narrow portion is twisted about the axis such that the first surface of the first shaped portion is at a first angle to the first surface of the second shaped portion. The second narrow portion is twisted about the axis such that the first surface of the second shaped portion is at a second angle to the first surface of the third shaped portion.

Methods and systems for tracking a dental tool within an oral cavity for taking and/or updating of a dental impression are described. In some embodiments, a marker, optionally a magnetic marker, is coupled to position movements of a rotatable dental tool. In some embodiments, detected movements of the marker are used, optionally in combination with other tracking data, to map contours which a portion of the rotatable dental tool follows during interaction with a dental surface. Optionally, the interaction occurs during grinding, drilling, and/or other procedures; which may be preparatory, for example, to the manufacture and/or fitting of a dental prosthetic.

There is provided a system for assisting a bone reorientation that includes (or communicates with) localization system components comprising a reference element to mount to the patient's bone and a tracker element to mounting to a bone fragment; and at least one computing unit coupled to the localization system components. The computing unit is configured to: define change in bone fragment orientation data (CBFOD) responsive to tracking measurements received from the localization system components; receive mapping information (e.g. generated from a pre-operative medical image of the patient's bone and bone fragment region) to define a map between the CBFOD and clinical parameters; and calculate and provide for display one or more clinical parameters based on the CBFOD and the map. A tracker element coupling component is also described with quick-connect and adjustment features. Method and other aspects are provided.

Bone tracking during orthopedic surgical procedures is described herein. An anti-rotation base of a registration marker of a mixed reality surgery system includes a surface configured to rest on and bear against a surface of a glenoid of a patient. The anti-rotation base also includes a plurality of pin receptacles that each define a respective pin axis. The pin axis of a first pin receptacle of the plurality of pin receptacles is not parallel to the pin axis of a second pin receptacle of the plurality of pin receptacles. Additionally, the anti-rotation base includes a mounting receptacle configured to receive the registration marker.

A marker coil includes a flexible substrate, a coil formed on the substrate by wiring, and a substrate holding part that is capable of being attached to a testee. A convex shape is formed in one of the substrate and the substrate holding part, and an engaging part for engaging the convex shape is formed in the other one of the substrate and the substrate holding part.

A digitizer pointer is provided as part of a system for correcting a curvature or deformity in a patient's spine based on the digitized locations of implanted screws and tracking the placement of the rod as it is placed in a minimally invasive fashion. The digitizer pointer is includes an offset adjustment feature, a swivel feature, and a translation feature.

Implantable magnetic markers (seeds) provide a higher degree of flexibility and convenience. The magnetic field that a marker provides is determined by the magnetic properties of the materials used and the dimensions of the marker—in general, a larger marker is easier to locate. Larger diameter markers may be used, but they should be much smaller than the average tumor size if they are to provide a useful degree of localization. An implantable magnetic marker is provided with two or more magnetic elements comprising permanent magnets connected by a mechanical connector to resiliently retain a first orientation when deployed and a second orientation before and/or during implantation. This allows complex magnetic configurations to be implanted, while retaining a simplified implantation method independent of the number of magnetic elements used. The transverse extent of the magnetic marker may be significantly reduced for implantation, allowing smaller needle diameters (smaller needle gauges) to be used or a larger number of smaller marker elements. This also allows significantly less longitudinal extents to be used. In addition, the two or more magnetic elements may be aligned to increase the transverse extent by increasing the transverse extent after implantation. This may increase detectability.

A device for attaching a localization marker to the lower jaw of an individual. The marker includes an inner face provided with two attachment lugs including an intra-oral portion having a general U-shape adapted for coming into contact with the outer face of the teeth of the lower jaw, an extra-oral portion including an attachment element for the marker, a connecting portion connecting the intra-oral portion and the extra-oral portion. The attachment element includes two recesses each adapted for receiving a respective lug of the marker, the recesses being separated by a tab adapted for being elastically deformed when one of the lugs is engaged in a respective recess so as to exert a pressure force on the lug.