A method and apparatus for marking a target with a radiopaque marker is disclosed. The method may include providing a radiopaque filament and inserting at least portion of the radiopaque filament into tissue. The filament may extend continuously and at last partially around a perimeter of the target so that the filament is disposed in a plurality of surgical planes to demarcate the target with the radiopaque maker.

Aspects of the present disclosure relate to systems, devices and methods for performing a surgical step or surgical procedure for example with visual guidance using a head mounted display or with a surgical navigation system or with a surgical robot. A computer processor can be configured to determine the pose of a first vertebra with an attached first marker and a second vertebra with an attached second marker. The computer processor can be configured to determine the pose of at least one vertebra interposed or adjacent to the first and second vertebrae with attached markers, e.g. fiducial markers.

A lesion resection method includes a marking step of forming a three-dimensional marking in peripheral tissues of a lesion; a grasping step of grasping the lesion by a grasping forceps; a retracing step of pulling the marking to a hand side of a staple ejection position of a stapler by pulling the grasping forceps grasping the lesion; a ligating step of ejecting a staple from the stapler to ligate the peripheral tissues of the lesion; and a resecting step of resecting the lesion.

A surgical instrument assembly configured to display a representation of the surgical instrument relative to a trajectory (e.g., a desired trajectory for drilling into an implant) based image data from an image sensor (e.g., a camera). For example, the surgical instrument assembly may be configured to determine a desired trajectory (e.g., a central axis of a distal hole of an intramedullary nail) based on X-ray image data representing at least one fiducial marker (e.g., an array of ArUco markers) and representing an anatomical structure and/or an implant. The surgical instrument assembly may in real time display a representation of the orientation and/or position of the surgical instrument (e.g., the orientation and position of a drill bit of the surgical instrument) in relation to the desired trajectory based on image sensor data that is generated based on an orientation of the at least one fiducial marker detected by an image sensor.

Disclosed is a method for use in surgical navigation, the method being performed by a computing system. A first pose of a first tracker is determined in exactly four degrees of freedom, DOF, and a second pose of a second tracker is determined in exactly four DOF. Based on the first pose and the second pose, a third pose of a virtual tracker may be determined in six DOF. The virtual tracker has a fixed spatial relationship relative to the anatomical object in the six DOF of the third pose. A transformation between the third pose and a fourth pose of the anatomical object in six DOF in an image coordinate system of image data of the anatomical object may be determined or obtained. The present disclosure further relates to a computing system, a surgical navigation system and a computer program product.

An elongate endovascular element for crossing through an obstruction in a blood vessel comprises: a proximal section; a distal tip section of smaller diameter than the proximal section; and a distally-tapering intermediate section extending between the proximal and distal tip sections; wherein the tapered intermediate section has a length that is substantially λ/2 or a multiple of λ/2, where λ is a wavelength of a driving frequency that will produce longitudinal resonance in the element.

Modular orthopedic implants, associated instruments, and navigation methods. The modular orthopedic fixation assembly may include a modular bone fastener and a modular tulip head configured to be installed separately. The modular bone fastener may be installed and tracked with a screw extender instrument having an outer sleeve and an inner shaft coupled to the bone fastener. The screw extender instrument may continue to track the location and orientation of the bone throughout the surgical procedure for navigational integrity. The modular tulip head may be assembled to the bone fastener with a head inserter instrument, which ensures the modular head is properly seated on the installed bone fastener.

Apparatus for mounting in a bone of a patient, consisting of a rigid elongated member having an axis of symmetry and a distal section, a proximal section, and an intermediate section connecting the distal and proximal sections. The apparatus has n helical blades, formed in the distal section, distributed symmetrically about the axis, each of the blades having a helix angle greater than zero and less than 45°. A cross-section of the distal section, taken orthogonally to the axis of symmetry, includes n mirror planes containing the axis of symmetry, wherein n is a whole number greater than one, and wherein the blades are configured to penetrate into the bone and engage stably therein. Adapters coupling the apparatus to different types of markers are also described

A system for localizing a region of interest (ROI) within a patient's body is disclosed. An embodiment of the system may comprise a pad that can be placed in association with the patient's body; one or more markers which are placed within a patient's body in association with the ROI, each marker being associated with one or more antennas and a unique collective ID; a locator comprising one or more antennas for transmitting/receiving a microwave (MW) signal into/from the patient's body in order to identify the one or more markers and a processing unit that is configured to control the operation of the system and for determining the distance from the locator to each one of the one or more markers.

A surgical system is provided. The surgical system includes a camera operable to capture images and/or video. A projector is operable to project light, and a controller is communicatively coupled with the camera and the projector. The controller is operable to track movement of bone in real-time during surgery based on the images and/or video captured by the camera, and control the projector to project the light including a cutting line on the bone to indicate a cutting plane for cutting the bone during surgery.