Abstract: Apparatus, systems, and methods for determining a position of a hip prosthesis in a bone of a patient are disclosed. One method for planning an orthopaedic surgical procedure may comprise determining a first set of target orientations for an acetabular cup of the hip prosthesis when the femoral prosthesis of the hip prosthesis is oriented at a first version, determining a second set of target orientations for the acetabular cup when the femoral prosthesis is oriented at a second version different from the first version, displaying a first graphical user interface (GUI) that comprises a first graphic representing the first set of target orientations for the acetabular cup, receiving a user input, and, in response to the input, displaying a second GUI that comprises a second graphic representing the second set of target orientations for the acetabular cup.

Abstract: The present disclosure relates to a system for guiding a surgical tool (1) comprising an operative axis with respect to an anatomical structure according to a planned trajectory defined by a target axis (T), comprising: —a robotic device (100) comprising: o an end effector (10) comprising the surgical tool or configured to be coupled to the surgical tool; o an actuation unit (11) comprising at least three motorized degrees of freedom; o a planar articulation (12) coupling the end effector (10) to the actuation unit (11), the planar articulation being configured to constrain movement of the operative axis (R) of the surgical tool inside a single plane; —a localization device (200) configured to determine in real time a position and orientation of the operative axis (R) with respect to a coordinate system of the anatomical structure; —a user interface (300); —a control unit (400) coupled to the localization device (200), the actuation unit (11) and the user interface (300); wherein the control unit (400) is con

Abstract: A replaceable battery unit for a surgical power tool and a method of operating a surgical power tool including the replaceable battery unit. The replaceable battery unit includes a housing containing one or more battery cells, a motion sensor unit, and a controller. The controller is operable to determine, from an output of the motion sensor unit, a sudden movement of the replaceable battery unit indicative of a kickback event of the surgical power tool. The controller is also operable, in response to the determination, to disconnect power from the replaceable battery unit to the surgical power tool.

Abstract: An approach for detecting rotor anomalies is disclosed. Vibration data for a vibration sensor(s) and for a transient speed operation is classified into a plurality of rotor speed ranges. A predetermined percentile vibration amplitude is determined for each rotor speed range for the vibration sensor(s). Using historical vibration measurement data obtained from a predetermined number of previous transient speed operations performed by at least the rotor, it is determine whether a vibration measurement obtained during the transient speed operation is indicative of a rotor anomaly by determining whether a trend exists in the predetermined percentile vibration amplitude for at least one of the rotor speed ranges and the vibration sensor(s) over a preset number of previous transient speed operations. A rotor anomaly is indicated where a trend exists.

Abstract: A dispenser for dispensing and attaching individual markers to a reference array of a tracking system is described. A housing defines a cavity extending along a longitudinal axis. The housing has a dispensing end defining a dispensing aperture. A plurality of markers are stacked within the cavity. Each marker has a marker attachment feature by which the marker is attachable to an attachment site of a reference array. The dispensing end of the housing provides a retainer which exerts a retaining force on a bottom most marker sufficient to retain the plurality of markers within the cavity but permitting the bottom most marker to be released from the cavity when the bottom most marker has been attached by its attachment feature to the attachment site of the reference array.

Abstract: A method for determining mass differential in a hot gas path component of a gas turbine includes monitoring operational conditions of the gas turbine; determining whether changes in a gas turbine wheelspace temperature has occurred; determining whether a wheelspace temperature has changed by comparing the wheelspace temperature to at least one of a compressor inlet temperature and a compressor discharge temperature indicates a change in temperature; in response to determining the wheelspace temperature indicates a change in temperature has occurred; determining whether at least one of the following exists: a gas turbine exhaust temperature indicates a simultaneous change with the temperature change between wheelspace temperature compared to the at least one of the compressor inlet temperature and the compressor discharge temperature, and a gas turbine vibrational change.

Abstract: A surgical impaction apparatus. The surgical impaction apparatus includes a surgical hammer (10). The surgical hammer has a handle. The surgical hammer also has an impaction head (2) having an impaction axis (7) and a striking face (20). The striking face is substantially perpendicular to the impaction axis. The surgical hammer further has an inertial measurement unit (30), which is operable to measure a direction in which an impaction force is applied by the impaction head relative to the impaction axis. A method of providing feedback to a surgeon about an impaction force applied by an impaction head of a surgical hammer. The method includes striking an object with a striking face of the impaction head. The method also includes measuring a direction in which an impaction force was applied by the impaction head relative to an impaction axis of the impaction head. The striking face is substantially perpendicular to the impaction axis.

Abstract: An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical bearing. surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis, The bore has a first axis that extends perpendicular to the assembly surface. There is a discontinuity at an interface between the bearing surface and the assembly surface, and the assembly surface is arranged on a plane which is parallel to, or contains, a plane which is defined by the opening to the bore in the head part when the head part is viewed from one side in cross-section. The alignment guide has an axial portion and an arm extending from the axial portion.

Abstract: An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical hearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis. The bore has a first axis that extends perpendicular to the assembly surface. The alignment guide has an axial portion defining a second axis and an arm extending from the axial portion. The arm includes a distal portion which is configured to engage the assembly surface, with the axial portion being arranged to engage the bearing surface of the head part when the head part is mounted within the guide such that an impaction force applied along the second axis is directed along the first axis.

Abstract: An approach for detecting rotor anomalies is disclosed. Vibration data for a vibration sensor(s) and for a transient speed operation is classified into a plurality of rotor speed ranges. A predetermined percentile vibration amplitude is determined for each rotor speed range for the vibration sensor(s). Using historical vibration measurement data obtained from a predetermined number of previous transient speed operations performed by at least the rotor, it is determine whether a vibration measurement obtained during the transient speed operation is indicative of a rotor anomaly by determining whether a trend exists in the predetermined percentile vibration amplitude for at least one of the rotor speed ranges and the vibration sensor(s) over a preset number of previous transient speed operations. A rotor anomaly is indicated where a trend exists.

Abstract: This disclosure presents systems and methods to provide a shared augmented reality experience across multiple presentation devices based on detection of one or more extraterrestrial bodies. A presentation device may be configured to detect presence of an extraterrestrial body. The presentation device may obtain resource information corresponding to the extraterrestrial body. The resource information may specify information specific to the extraterrestrial body including a location of the extraterrestrial body. The presentation device may generate an image of a virtual object. The image may be presented so that the virtual object may be perceived as being present at the location of the extraterrestrial body. The virtual object may augment the appearance of the extraterrestrial body. Gameplay may be carried out utilizing the virtual object.

Abstract: A replaceable battery unit for a surgical power tool and a method of operating a surgical power tool including the replaceable battery unit. The replaceable battery unit includes a housing containing one or more battery cells, a motion sensor unit, and a controller. The controller is operable to determine, from an output of the motion sensor unit, a sudden movement of the replaceable battery unit indicative of a kickback event of the surgical power tool. The controller is also operable, in response to the determination, to disconnect power from the replaceable battery unit to the surgical power tool.

Abstract: This disclosure presents systems and methods to provide a shared augmented reality experience across multiple presentation devices based on detection of one or more extraterrestrial bodies. A presentation device may be configured to detect presence of an extraterrestrial body. The presentation device may obtain resource information corresponding to the extraterrestrial body. The resource information may specify information specific to the extraterrestrial body including a location of the extraterrestrial body. The presentation device may generate an image of a virtual object. The image may be presented so that the virtual object may be perceived as being present at the location of the extraterrestrial body. The virtual object may augment the appearance of the extraterrestrial body. Gameplay may be carried out utilizing the virtual object.

Abstract: An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical bearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis. The bore has a first axis that extends perpendicular to the assembly surface. There is a discontinuity at an interface between the bearing surface and the assembly surface, and the assembly surface is arranged on a plane which is parallel to, or contains, a plane which is defined by the opening to the bore in the head part when the head part is viewed from one side in cross-section. The alignment guide has an axial portion and an arm extending from the axial portion.

Abstract: Icons representing a library of predefined media objects for insertion in a digital content work open for editing within a content creation and editing tool may be displayed in a graphical user interface of the content creation and editing tool. Thus, the content creation and editing tool may include an interface which displays, simultaneously, a presentation view and a code view of content comprising the digital content work along with icons representing the library of predefined media objects. Computer-readable code corresponding to a selected one of the library of predefined media objects may be inserted within the digital content work at a user-specified location, e.g., responsive to user action specifying a desire to insert code. Also, an explanation of a selected one of the media objects of the library may be displayed responsive to a user action.

Abstract: A system, computer-readable storage medium, and computer-implemented method for editing content works, such as publications using markup language, via a user interface having panel of patterns, are presented. The disclosure includes approaches for editing and creating patterns based on selected representations of markup elements and other content, and also features of the user interface that enable use of the patterns for modifying content works.

Abstract: An electronic circuit assembly comprises a substrate and circuit components attached to the substrate by means of an electrically conductive adhesive, wherein the adhesive is releasable under predetermined release conditions, whereby to enable the circuit components to be removed from the substrate for recovery or re-use.

Abstract: Icons representing a library of predefined media objects for insertion in a digital content work open for editing within a content creation and editing tool may be displayed in a graphical user interface of the content creation and editing tool. Thus, the content creation and editing tool may include an interface which displays, simultaneously, a presentation view and a code view of content comprising the digital content work along with icons representing the library of predefined media objects. Computer-readable code corresponding to a selected one of the library of predefined media objects may be inserted within the digital content work at a user-specified location, e.g., responsive to user action specifying a desire to insert code. Also, an explanation of a selected one of the media objects of the library may be displayed responsive to a user action.

Abstract: A trial implant system and method of trialling are described. The trial implant system comprises a stem component (120) having a neck (122) including a free end (124) and a neck longitudinal axis (123). A first trial head (100) has an articulating surface (102) and includes a bore (108) having a bore longitudinal axis (106) and which can receive the free end of the neck with the neck longitudinal axis and bore longitudinal axis coincident. The system includes a first formation (126) and a plurality of second formations (128) angularly disposed around the longitudinal axis. One of the first formation and the plurality of second formations is provided on the neck and the other is provided within the bore. Each of the second formations can matingly engage with the first formation to limit the depth of insertion of the neck into the bore by a different amount.

Abstract: A trial implant system and method of trialling are described. A stem prosthetic implant (320) has a neck bearing a taper (324). A protector (330) covers the taper and is removable from the taper. The protector has a side wall (333, 342) and an end wall (335), and the end wall is rigid and an inner surface (346) of the side wall is deformable. A head prosthetic implant (380) has a prosthetic articulating surface (382) and includes a tapered bore arranged to matingly receive the taper therein to form a prosthetic assembly of the stem prosthetic implant and the head prosthetic implant. A head trial implant (310) has a trial articulating surface (312) and including a trial bore (318) arranged to matingly receive the taper covered by the protector therein to form a trial assembly of the stem prosthetic implant and the head trial implant. The trial assembly provides at least a portion of the trial articulating surface coincidental with the prosthetic articulating surface provided by the prosthetic assembly.