Process and device for the preoperative determination of the positioning data of endoprosthetic parts
September 2, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesComputerized video gait and motion analysis system and method Preoperative planning of bone cuts and joint replacement using radiant energy scan imaging Reference system for implantation of condylar total knee prostheses Robot-aided system for surgery Arrangement for fixing a knee-joint in defined positions and for positional control of instruments for replacing the knee-joint with a prosthesis 5249581 Method and apparatus for locating functional structures of the lower leg during knee surgery Determination of kinematically constrained multi-articulated structures Computer-aided surgery apparatus Computer-assisted surgical method Inventors
ApplicationNo. 389315 filed on 09/02/1999US Classes:600/407, Detecting nuclear, electromagnetic, or ultrasonic radiation128/920, COMPUTER ASSISTED MEDICAL DIAGNOSTICS606/130Stereotaxic deviceExaminersPrimary: Lateef, Marvin M.Assistant: Shaw, Shawna J. Attorney, Agent or FirmForeign Patent References
International ClassA61B 005/00Foreign Application Priority Data1997-03-11 DEAbstractIn order to be able to ascertain the position of the bone in the body without complicated procedures in a process for the preoperative determination of the positioning data of endoprosthetic parts of a central joint relative to the bones forming the central joint, a respective outer articular point is determined by way of movement of the bones about a respective outer joint which is located at the end of the two bones facing away from the central joint. An articular point is determined for each of the two bones in the area of the central joint, and a direction characteristic for each of these bones is determined by way of a straight-line connection of the two articular points obtained in this manner for the two bones. The orientation of the endoprosthetic parts relative to this characteristic direction is then determined. Apparatus for carrying out the process is also provided.Other References
Field of SearchDetecting nuclear, electromagnetic, or ultrasonic radiationBody movement (e.g., head or hand tremor, motility of limb, etc.) Infrared radiation With tomographic imaging obtained from electromagnetic wave Using fiducial marker Stereotaxic device Orthopedic cutting instrument Saw type tool Osteotomy jig or fixture Knee or knee joint Prosthesis insertor or extractor Gauging or measuring device Human body observation COMPUTER ASSISTED MEDICAL DIAGNOSTICS | |
