A stretch-measurement probe includes an elongate outer sleeve, expansion feature associated with a distal portion of the outer sleeve, and an elongate inner rod disposed at least partially within the outer sleeve. The expansion feature is configured to allow a longitudinal distance between a proximal end of the outer sleeve and the distal end of the outer sleeve to be varied.

The invention relates to a system for determining an optimal position of a surgical instrument relative to a patient's bone tracker, the system comprising:—a medical imaging system configured to acquire at least one cone beam computed tomography intraoperative image of the patient;—a localization device;—a computer configured to receive images from the medical imaging system and localization data from the localization device and to implement the following method: the method comprising: ⋅(a) receiving at least one preoperative 2D X-ray image of the bone while the patient is in a position of interest; ⋅(b) acquiring an intraoperative 3D medical image of the bone by cone beam computed tomography while the patient is in an operative position different from the position of interest, the 3D image being registered with the coordinate system of the bone tracker; ⋅(c) registering the intraoperative 3D medical image onto the at least one preoperative 2D X-ray image, so as to obtain a registered 3D image representing the bone in the position of interest; ⋅(d) planning a surgical procedure on the registered 3D medical image taking into account said position of interest; ⋅(e) determining an optimal position of the surgical instrument relative to the patient's bone tracker for implementing said planned surgical procedure.

A hooked surgery camera for use in surgical robotic systems includes a hook coupled to a side or end of a camera body, for attaching the camera to tissue during a surgery. The camera also includes a lens on another end of the camera body, and electronic components inside the camera body. The electronic components include a battery, a digital camera module and a wireless data transmitter. The hooked surgery camera provides a supplementary view of the surgical site, that is from a different perspective than the view provided by an endoscope, during laparoscopic surgeries. Other aspects are also described and claimed.

A system includes a first tool having a first portion and a second portion supported by the first portion. The first portion extends from a first end to a second end, which includes a sleeve defining a first hole defining a first axis. The second portion defines a second hole having a second axis that is disposed at an angle relative to the first axis. The first and second holes are sized and configured to receive fixation elements for coupling the first tool to at least one bone. The first portion is configured to rotate about the first hole when a first fixation element is received within the first hole, and the sleeve defines a third hole that intersects a bottom surface of the sleeve. The third hole defines a third axis that is disposed at an angle relative to the first axis and the second axis.

An inertial sensor based surgical navigation system for knee replacement surgery is disclosed. Inertial sensors composed of six-degree-of-freedom inertial chips, whose measurements are processed through a series of integration, quaternion, and kalman filter algorithms, are used to track the position and orientation of bones and surgical instruments. The system registers anatomically significant geometry, calculates joint centers and the mechanical axis of the knee, develops a visualization of the lower extremity that moves in real time, assists in the intra-operative planning of surgical cuts, determines the optimal cutting planes for cut guides and the optimal prosthesis position and orientation, and finally navigates the cut guides and the prosthesis to their optimal positions and orientations using a graphical user interface.

A device for registering a bone for a robotic shoulder arthroplasty with a surgical robot. The device can include a first portion engageable with a first portion of a bone and can include a second portion engageable with a second portion of the bone, the second portion connected to the first portion and rotatable with respect to the first portion. The device can include a registration device connectable to the first portion and configured to interface with the surgical robot for registration of the device and the bone. The device can include an actuator engageable with the first portion and the second portion to move the second portion toward a closed position away from an open position.

A patient marker couples to an anchoring device via a base having a base axis, base connections and a first indicator. The marker includes: an adapter having a first surface with connections configured to mate with the base connections, and a second surface with connections congruent with the base connections, and at least one second indicator. The marker includes an alignment target, having a target region with an alignment pattern, and a socket connected to the target region with socket connections congruent with the first surface connections. In a first configuration the socket couples to the base by mating the first surface connections with the base connections and mating the socket connections with the second surface connections. In a second configuration, the socket fits onto the base by mating the socket connections with the base connections. One of the indicators indicates a target orientation angle about the base axis.

Example dental scanning methods for analyzing jaws of a patient involve taking multiple scans of the jaws, and/or models thereof, and then shifting the image of one scan to match that of another. In some examples, fiducial markers are attached to the patient's jaws beforehand to accurately identify and track the relative position of the jaws. The methods provide a way for creating a precise image of an upper jaw and a lower jaw in their proper bite registration, even though the resulting image may show an insufficient number of teeth to readily do so. The final, properly shifted image serves as a virtual 3D jaw model that can be manipulated and analyzed to aid in various orthodontic and other dental treatments.

Methods, non-transitory computer readable media, serial monitor devices, fiducial tracking knee braces devices, and systems that facilitate generation of improved three-dimensional models from two-dimensional multi-planar images are disclosed. With this technology, correspondence of a patient's knee angle is substantially maintained across x-ray images to improve fiducial-marker-to-bone relationships within the images and facilitate improved scaling and registration of the images to generate a three-dimensional model of the knee. In particular, orientation sensor(s) attached to an improved knee brace device allows a user to substantially match the position of the knee across anterior/posterior and lateral x-ray images so that the images can be scaled and oriented more effectively, resulting in more accurate three-dimensional models and improved preoperative planning for patients.

The invention refers to an ultrasound marker that comprises an enclosure. The marker comprises an energy transducer for transducing impeding sound energy into electric energy. The marker also comprises an ultrasound emitter that is configured to generate an ultrasound signal when fed with electric energy. The marker further comprises a trigger that is operatively connected to the ultrasound emitter and that can be activated via a wireless signal. The trigger is configured to control the generation of ultrasound by the ultrasound emitter in dependence of the wireless signal.