Abstract:
The invention is a system for use during a medical or surgical procedure on a body. The system generates a display from an image data set (106) representing the position of one or more body elements (10, 20, 30; 141; 806; 940) during the procedure based on scans (40) taken of the body. At least some of the body elements are movable with respect to each other. Each scan (40) has a reference for each of the one or more body elements (10, 20, 30; 141; 806; 940) and the reference of a particular body element (10, 20, 30; 141; 806; 940) has a known spatial relation to the particular body element (10, 20, 30; 141; 806; 940). The system comprises a plurality of reference frames (116; 122; 200; 302; 400; 900; 956), at least one attached to each of the movable body elements. It also comprises a localizer (108; 136; 1100) for identifying, during the procedure, the position of the reference for each of the body elements (10, 20, 30; 141; 806; 940) to be displayed, as well as a processor (104; 1108) for modifying the image data set (106) according to the identified position of the reference during the procedure, as identified by the localizer (108; 136; 1100), said processor (104; 1108) being adapted to generate an image data set (122) representing the position and geometry of the body elements (10, 20, 30; 141; 806; 940) according to the identified position of the reference frames during the procedure, as identified by the localizer. Also included in the system is a display (124; 1106) utilizing the displaced image data set (122) generated by the processor (104; 1108), illustrating the position and geometry of the body elements (10, 20, 30; 141; 806; 940) during the procedure.
Abstract:
The invention is a device (300; 350; 400; 500) for use with a surgical navigation system having a sensor array (110; 112) which is in communication with the device (300; 350; 400; 500) to identify its position. The device (300; 350; 400; 500) is for guiding an instrument for engaging a body part thereby locating the instrument at a known position relative to the body part. It has a connector (340; 370; 408; 514) for engaging a cable connected to the surgical navigation system, the cable for providing signals for activating the device (300; 350; 400; 500). The device (300; 350; 400; 500) comprises: a housing (308, 310) having a cavity (312; 514) therein; a structure (304; 354; 404; 508) on the housing (308, 310) for guiding the instrument in order to maintain the instrument in a relationship relative to the housing (308, 310); a plurality of light emitting diodes (316; 510) on the housing (308, 310), said diodes (316; 510), when activated, emitting light for communicating with the sensor array (110; 112) of the surgical navigation system; a connector (340; 370; 408; 514) attached to the housing (308, 310) and adapted to engage the cable connected to the surgical navigation system, said connector (340; 370; 408; 514) for receiving the signals for activating the diodes (316; 510); and wires (314; 410; 516) located in the cavity (312; 514) of the housing (308, 310) and electrically interconnecting the connector (340; 370; 408; 514) and the light emitting diodes (316; 510) and for transmitting the signals received by the connector (340; 370; 408; 514) to the diodes (316; 510) to activate the diodes (316; 510).
Abstract:
A system is described for use in imaging a subject which comprises memory (320) including a first scan image (FIG. 5C) of the subject, an imaging probe (500) configured to scan the subject and provide a second scan image (FIG. 5B) of the subject, means (502) for sending a signal representing a position of the subject, means (370) for sending a signal representing a position of the imaging probe (500), an array of receivers (300) in communication with the subject position signalling means and the imaging probe position signalling means, and a processor (314) in communication with the array. The processor (314) is configured to determine the position of the subject relative to the array (300), to determine the position of the imaging probe (500) relative to the array (300), to determine the position of the imaging probe (500) relative to the subject, and to determine the position in the first scan image (FIG. 5C) and the second scan image (FIG. 5B) corresponding to the position of the imaging probe (500) relative to the subject.