Repeat fixation for frameless stereotactic procedure
February 14, 2015. 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 ReferencesDevice for measuring relative jaw positions and movements Animal holding and position restoring device employing vacuum holder and mouthpiece Apparatus worn by a patient to provide a geometric reference for medical diagnostic data obtained from the patient Dosimetric technique for stereotactic radiosurgery same Apparatus for reproducibly positioning an image receptor for intraoral diagnostics Apparatus for stereotactic radiosurgery Locating target in human body 5249581 Locating target in human body Frameless stereotaxy system InventorsAssigneeApplicationNo. 388024 filed on 02/14/1995US Classes:600/429, With stereotactic device378/204, ACCESSORY378/205, Alignment378/207, Testing or calibration378/208, Object holder or support433/27, Having condition sensor to transmit signal to regulate indicating device or controller433/68, Having means to record or indicate jaw movement or position or dental occlusion433/75, Having tool, marker, or coupling or guiding means therefor433/213, Preliminary casting, model, or trial denture600/479, Cardiovascular testing606/130Stereotaxic deviceExaminersPrimary: Lateef, Marvin M.Assistant: Shaw, Shawna J. Attorney, Agent or FirmInternational ClassA61B 019/00AbstractRepeat fixation for medical procedures is accomplished using a non-invasive locator, specifically a bite plate. The bite plate has at least three fiducial markers on it. The fiducial markers may be LEDs, radiopaque markers for angiography or computerized tomography (CT) imaging or magnetic resonance markers for magnetic resonance (MR) imaging. By detecting the position of the markers, the position of features within the patient (such as a brain tumor or other intracranial target to which radiation is to be applied) can be determined with great precision. Since the bite plate has been molded to uniquely fit to the patient's teeth, it may be removed after an initial imaging of the patient. The bite plate may then be re-attached one or more times to the teeth and the location of the features will be in a known position relative to the sensed markers. The patient's position can then be adjusted in order to bring the features to a desired location, such as bringing an intracranial target to the isocenter of a planned application of radiation. Importantly, the bite plate is mechanically independent of any structures used for positioning (that is moving) the patient such that no error introducing forces or torques are applied to the bite plate by adjusting patient position.Other References
Field of SearchStereotaxic deviceImaging Including object support or positioning ACCESSORY Alignment Testing or calibration Object holder or support RADIOACTIVE SUBSTANCE APPLIED TO BODY FOR THERAPY Radioactive substance placed within body (e.g., inhaled, implanted, injected, etc.) Injectors/holders for seeds or implants (e.g., capsules) Having means to record or indicate jaw movement or position or dental occlusion Condylar referencing means (i.e., face bow) Having tool, marker, or coupling or guiding means therefor Preliminary casting, model, or trial denture Having means to emit radiation or facilitate viewing of the work Having condition sensor to transmit signal to regulate indicating device or controller | |
