Abstract: A combination of a haptic device and a computer-assisted medical system is used for interactive haptic positioning of a medical device coupled to the haptic device. A reconfigurable haptic object facilitates the positioning of the medical device and/or the haptic device. The haptic object may be modified in response to application of a force against the haptic object by a user of the haptic device pushing the haptic device against the haptic object. Preferably, the haptic object moves in the direction of the force applied by the haptic device. The medical device may be guided to a desired pose relative to a target area from its current position. The user may approach the target area from its current position and still be provided with haptic cues to enable the user to guide the medical device to the target area.

Abstract: A substantially cup-shaped prosthetic device for a joint is provided. The prosthetic device includes an outer surface configured to operatively engage at least one of a first bone of the joint and a component and an inner surface configured to connect to a second bone of the joint. The inner surface is rotationally asymmetric to minimize intrusion on a vascular region of the second bone.

Abstract: The invention generally pertains to a combination of a haptic device with a computer-assisted surgery system. The haptic device may be used as an input device, allowing information to pass from the user to the computer-assisted surgery system, and providing functionality similar to common user interface devices, such as a mouse or any other input device. When used as an input device, it may be used for defining anatomical reference geometry, manipulating the position and/or orientation of virtual implants, manipulating the position and/or orientation of surgical approach trajectories, manipulating the positions and/or orientation of bone resections, and the selection or placement of any other anatomical or surgical feature.

Abstract: The invention generally pertains to a combination of a haptic device with a computer-assisted surgery system. The haptic device may be used as an input device, allowing information to pass from the user to the computer-assisted surgery system, and providing functionality similar to common user interface devices, such as a mouse or any other input device. When used as an input device, it may be used for defining anatomical reference geometry, manipulating the position and/or orientation of virtual implants, manipulating the position and/or orientation of surgical approach trajectories, manipulating the positions and/or orientation of bone resections, and the selection or placement of any other anatomical or surgical feature.

Abstract: It is often desirable to define objects with respect to images of an anatomy displayed using an image guided surgery system. For non-trivial objects, or those with complicated two or three dimensional forms, it may be difficult to present information in a manner that is simple for a user to understand. The local distance to a surface of interest, such as the surface of the defined object, or to a desired position, the local penetration distance of the surface of interest, or haptic repulsion force, often provides the most useful information for augmenting the interaction of the user with the image guided surgery system. The scalar value of the local distance may be conveyed to the user by visual, audio, tactile, haptic, or other means.

Abstract: A system and method for providing computer assistance for performing a medical procedure provides a graphical user interface to guide and/or assist a user, for example a surgeon, performing the medical procedure, whether surgical or non-surgical. The computer-assisted system comprises a software application that may be used for a medical procedure.

Abstract: A combination of a haptic device and a computer-assisted medical system is used for interactive haptic positioning of a medical device coupled to the haptic device. A reconfigurable haptic object facilitates the positioning of the medical device and/or the haptic device. The haptic object may be modified in response to application of a force against the haptic object by a user of the haptic device pushing the haptic device against the haptic object. Preferably, the haptic object moves in the direction of the force applied by the haptic device. The medical device may be guided to a desired pose relative to a target area from its current position. The user may approach the target area from its current position and still be provided with haptic cues to enable the user to guide the medical device to the target area.

Abstract: A combination of a haptic device and a computer-assisted medical system is used for interactive haptic positioning of a medical device coupled to the haptic device. A reconfigurable haptic object facilitates the positioning of the medical device and/or the haptic device. The haptic object may be modified in response to application of a force against the haptic object by a user of the haptic device pushing the haptic device against the haptic object. Preferably, the haptic object moves in the direction of the force applied by the haptic device. The medical device may be guided to a desired pose relative to a target area from its current position. The user may approach the target area from its current position and still be provided with haptic cues to enable the user to guide the medical device to the target area.

Abstract: A method and apparatus for controlling a haptic device. In one embodiment, the haptic device includes an actuator; an actuator sensor, producing an actuator signal indicative of the actuator velocity; a load; a load output sensor producing a load output signal indicative of the load position; and a controller in electrical communication with the load output sensor, actuator sensor and actuator. The controller controls the actuator in response to the actuator signal and the load output signal to provide a haptic response to a user. In one embodiment, the method for controlling an actuator of a haptic device includes the steps of producing an actuator signal indicative of the velocity of an actuator; producing a position signal indicative of the position of a load; and controlling the actuator in response to the actuator signal and the load output position signal to produce a haptic response to a user.

Abstract: A substantially cup-shaped prosthetic device for a joint is provided. The prosthetic device includes an outer surface configured to operatively engage at least one of a first bone of the joint and a component and an inner surface configured to connect to a second bone of the joint. The inner surface is rotationally asymmetric to minimize intrusion on a vascular region of the second bone.

Abstract: In accordance with an embodiment of the present invention, attractive haptic objects are associated with a target region for performing a medical procedure and repulsive haptic objects are associated with anatomical features to be avoided during the medical procedure. A surgeon may perform surgical planning by moving the haptic device around. The surgeon moves the haptic device until a pose is found where haptic cues from the attractive haptic objects are active indicating that a medical device if attached to the haptic device would reach the target region, and haptic cues from the repulsive haptic objects are inactive indicating that the medical device would not penetrate any of the anatomical features to be avoided. During the planning process a virtual tool may be displayed on a display device to indicate the position and/or movement of the medical device if the medical device had been coupled to the haptic device.

Abstract: In accordance with an embodiment of the present invention, a method for haptic sculpting of a physical object using a haptic device comprises defining a haptic object for aiding in the sculpting of the physical object, dynamically modifying a configuration of the haptic object in response to a medical device coupled to the haptic device being in proximity to the haptic object, and providing haptic cues to guide a user of the medical device in sculpting at least a portion of the physical object corresponding to the haptic object.

Abstract: It is often desirable to define objects with respect to images of an anatomy displayed using an image guided surgery system. For non-trivial objects, or those with complicated two or three dimensional forms, it may be difficult to present information in a manner that is simple for a user to understand. The local distance to a surface of interest, such as the surface of the defined object, or to a desired position, the local penetration distance of the surface of interest, or haptic repulsion force, often provides the most useful information for augmenting the interaction of the user with the image guided surgery system. The scalar value of the local distance may be conveyed to the user by visual, audio, tactile, haptic, or other means.

Abstract: The invention generally pertains to a combination of a haptic device with a computer-assisted surgery system. The haptic device may be used as an input device, allowing information to pass from the user to the computer-assisted surgery system, and providing functionality similar to common user interface devices, such as a mouse or any other input device. When used as an input device, it may be used for defining anatomical reference geometry, manipulating the position and/or orientation of virtual implants, manipulating the position and/or orientation of surgical approach trajectories, manipulating the positions and/or orientation of bone resections, and the selection or placement of any other anatomical or surgical feature.

Abstract: In accordance with an embodiment of the present invention, attractive haptic objects are associated with a target region for performing a medical procedure and repulsive haptic objects are associated with anatomical features to be avoided during the medical procedure. A surgeon may perform surgical planning by moving the haptic device around. The surgeon moves the haptic device until a pose is found where haptic cues from the attractive haptic objects are active indicating that a medical device if attached to the haptic device would reach the target region, and haptic cues from the repulsive haptic objects are inactive indicating that the medical device would not penetrate any of the anatomical features to be avoided. During the planning process a virtual tool may be displayed on a display device to indicate the position and/or movement of the medical device if the medical device had been coupled to the haptic device.

Abstract: A combination of a haptic device and a computer-assisted medical system is used for interactive haptic positioning of a medical device coupled to the haptic device. A reconfigurable haptic object facilitates the positioning of the medical device and/or the haptic device. The haptic object may be modified in response to application of a force against the haptic object by a user of the haptic device pushing the haptic device against the haptic object. Preferably, the haptic object moves in the direction of the force applied by the haptic device. The medical device may be guided to a desired pose relative to a target area from its current position. The user may approach the target area from its current position and still be provided with haptic cues to enable the user to guide the medical device to the target area.

Abstract: In accordance with an embodiment of the present invention, a method for haptic sculpting of a physical object using a haptic device comprises defining a haptic object for aiding in the sculpting of the physical object, dynamically modifying a configuration of the haptic object in response to a medical device coupled to the haptic device being in proximity to the haptic object, and providing haptic cues to guide a user of the medical device in sculpting at least a portion of the physical object corresponding to the haptic object.