225 results about "Surgical planning" patented technology

A system and method for navigation within a surgical field are presented. In exemplary embodiments according to the present invention a micro-camera can be provided in a hand-held navigation probe tracked by a tracking system. This enables navigation within an operative scene by viewing real-time images from the viewpoint of the micro-camera within the navigation probe, which are overlaid with computer generated 3D graphics depicting structures of interest generated from pre-operative scans. Various transparency settings of the camera image and the superimposed 3D graphics can enhance the depth perception, and distances between a tip of the probe and any of the superimposed 3D structures along a virtual ray extending from the probe tip can be dynamically displayed in the combined image. In exemplary embodiments of the invention a virtual interface can be displayed adjacent to the combined image on a system display, thus facilitating interaction with various navigation related functions. In exemplary embodiments according to the present invention virtual reality systems can be used to plan surgical approaches with multi-modal CT and MRI data. This allows for generating 3D structures as well as marking ideal surgical paths. The system and method presented thus enable transfer of a surgical planning scenario to a real-time view of an actual surgical field, thus enhancing navigation.

Disclosed is a computer-integrated surgery aid system for minimally invasive surgery and a method for controlling the same. The system includes a surgery planning system for creating three-dimensional information from two-dimensional images obtained by means of biplanar fluoroscopy so that spinal surgery can be planned according to the image information and a scalar-type 6 degree-of-freedom surgery aid robot adapted to be either driven automatically or operated manually.

Systems and methods for performing robotic endoscopic surgical procedures, according to a surgical plan prepared on a preoperative set of three dimensional images. The system comprises a surgical robot whose coordinate system is related to that of fluoroscope images generated intraoperatively, by using a three dimensional target having radio-opaque markers, attached in a predetermined manner to the robot or to another element to which the robot is attached, such as the spinal bridge or an attachment clamp. The robot is mounted directly or indirectly on a bone of the patient, thereby nullifying movement of the bone, or a bone tracking system may be utilized. The coordinate system of the intraoperative fluoroscope images may be related to the preoperative images, by comparing anatomical features between both image sets. This system and method enables the endoscope to be directed by the robot along the exact planned path, as determined by the surgeon.

A stereotactic device for use with an imager such as a magnetic resonance imager is disclosed, which permits an imaging scan to be taken with reference to a personal coordinate system (or PCS) that is independent of a machine coordinate system (or MCS). Methods using the device to obtain imaging scans are described such that the imaging scans are superimposable even if taken at different time periods using the same or a different imager. The device comprises a frame that can be reproducibly positioned on a subject and which is equipped with non-invasive affixing means and localizing means that provide the PCS. The device and methods of the invention are particularly well suited for routine initial or follow-up examinations, pre-surgical planning and post-surgical evaluation. Markers on a stereotactic device can be tracked during an MRI scan to compensate for patient motion during the scan.

Systems, methods, and computer program products for analysis of vessel attributes for diagnosis, disease staging, and surgical planning are disclosed. A method for analyzing blood vessel attributes may include developing an atlas including statistical measures for at least one blood vessel attribute. The statistical measures can be developed from blood vessel image data from different individuals. Blood vessel attribute measurements can be obtained from an individual subject. The individual subject's blood vessel attribute measurements can be compared to the statistical measures in the atlas. Output may be produced indicative of a physical characteristic of the individual based on results from the comparison.

The invention relates to manufacturing a surgical guide to be placed in a patient's mouth. The patient's mouth is scanned to obtain surgical-region scan data at a region where an implant is to be located. The patient's mouth is also scanned in the opened position to acquire dental conditions opposite from the surgical region so as to obtain opposing-condition scan data. A virtual model is developed using the surgical-region scan data and the opposing-condition scan data. Using the virtual model, a surgical plan is developed that includes the location of the implant to be installed in the patient. A virtual surgical guide is also developed based on the surgical plan. The dimensions of instrumentation to be used with the surgical guide are checked to ensure they will fit within the mouth by use of the opposing-condition scan data. After checking, final surgical-guide manufacturing information is obtained for manufacturing the surgical guide.

Systems and methods of generating updated surgical plans are described herein. In one embodiment, a method of generating an updated surgical plan can include generating a three dimensional (3D) model of a bone, generating a surgical plan based on the 3D model, in which the surgical plan can include: locations on the bone upon which to dispose a fixator and settings of struts of the fixator, disposing the fixator on the bone based on the surgical plan, and, based on data associated with the placement of the fixator disposed on the bone, generating an updated surgical plan including updated settings for the struts.

An apparatus, method, and computer program product for providing information for surgical planning based on automated biomechanical analysis of a bone-implant system using finite element analysis of a patient's 3D medical image, including automated biomechanical analysis of bone-implant systems for use in surgical planning both pre-operatively and intra-operatively and for use in research and development studies.

The invention relates to manufacturing a surgical guide to be placed in a patient's mouth. The patient's mouth is scanned to obtain surgical-region scan data at a region where an implant is to be located. The patient's mouth is also scanned in the opened position to acquire dental conditions opposite from the surgical region so as to obtain opposing-condition scan data. A virtual model is developed using the surgical-region scan data and the opposing-condition scan data. Using the virtual model, a surgical plan is developed that includes the location of the implant to be installed in the patient. A virtual surgical guide is also developed based on the surgical plan. The dimensions of instrumentation to be used with the surgical guide are checked to ensure they will fit within the mouth by use of the opposing-condition scan data. After checking, final surgical-guide manufacturing information is obtained for manufacturing the surgical guide.

Pre-surgical planning for cranial and facial reconstruction includes preparing a computer generated jaw or skull model for determining a locational position for a dental implant, a surgical bone implant to repair missing bone in the cranium, install ear prostheses, and / or install nose prostheses. The computer generated jaw or skull model is made from medical imagery and computer aided design. A surgical guide is prepared with oversize holes in registration with analogs for the dental or surgical bone implants to be inserted at the locational positions determined by a dentist or surgeon in the jaw or cranial skull model. The surgical guide is fitted atop each analog, and the surgical guide is bonded to the jaw or skull model at a predetermined angle of the analog in the jaw or skull. The surgical guide is removed from the model attached to the law or skull of a patient for accurate drilling during the dental or surgical procedure for insertion of the implants into the jaw or skull of the patient.

Less invasive surgical techniques for performing brain surgery are disclosed in which a dilating obturator and cannula assembly is inserted into brain tissue until the obturator tip and cannula are adjacent to the target tissue. The obturator is removed and surgery is performed through the cannula. In preferred embodiments the obturator and cannula are placed using image guidance techniques and systems to coordinate placement with pre-operative surgical planning. A stylet with associated image guidance may be inserted prior to insertion of the obturator and cannula assembly to guide insertion of the obturator and cannula assembly. Surgery preferably is performed using an endoscope partially inserted into the cannula with an image of the target tissue projected onto a monitor. Dilating obturator structures having a rounded or semi-spherical tip and / or an optical window for visualizing brain tissue during expansion are contemplated.