Synchronized AR Spine Models for Interactive Surgical Rehearsal
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Solution Overview
Problem
Surgical procedures, particularly spine surgery, are complex and time-sensitive, requiring detailed patient-specific planning that current 3D imaging techniques fail to adequately support, often being invasive and lacking in interactive rehearsal capabilities.
Innovation Solution
A computer system is used to generate an augmented reality view by integrating a virtual accessory model with a physical model, allowing users to interact and manipulate the virtual model in real-time, with guide markers for precise placement, using a physical probe to simulate surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If 3D CT and MRI images are used for pre-surgery preparation, then patient-specific planning capability is improved, but interactivity and rehearsal capability remain insufficient
Solution Approach 1:
The patent creates a physical 3D printed copy of the patient's spine anatomy from CT/MRI data, allowing tactile interaction and manual manipulation that complements the digital imaging data. This physical copy serves as an interactive rehearsal tool while the digital data preserves complete patient-specific information.
Solution Approach 2:
The physical model acts as an intermediary between the digital imaging data and the surgical procedure. It translates complex 3D imaging information into a tangible form that can be manually manipulated, allowing surgeons to rehearse procedures with physical feedback while the digital data remains available for reference.
2Loss of information
If existing techniques for studying patient anatomy are used, then diagnostic capability is improved, but invasiveness increases
Solution Approach 1:
The system creates a non-invasive physical copy of the patient's spine anatomy through 3D printing, allowing repeated examination and surgical rehearsal without touching or invading the actual patient. The physical model can be manipulated indefinitely without affecting the patient.
Solution Approach 2:
The physical model is created before the actual surgical procedure, allowing all necessary studies, measurements, and rehearsals to be performed in advance on the copy. This preliminary action on the model eliminates the need for invasive procedures during or before the actual surgery.
3Manufacturing precision
If detailed patient-specific planning is performed, then surgical precision is improved, but procedure time increases
Solution Approach 1:
The physical model is prepared in advance from patient imaging data, allowing surgeons to perform detailed planning and rehearsals before the actual surgery. This preliminary creation of the model enables thorough planning without adding time to the surgical procedure itself, as the model is ready for immediate use during the operation.
Solution Approach 2:
The physical 3D printed model provides a tangible reference that can be manipulated during surgical planning, allowing precise measurements and angle assessments without time-consuming digital measurements. The model can be physically rotated, sectioned, and measured to achieve surgical precision efficiently.
Data Source
AI summary
A system and method for providing an imaging system comprising an image generator and a MD6DM model, for creating a synchronized augmented reality view of a subject. In particular, the imaging system enables augmenting and overlaying the MD6DM model over top of a corresponding physical model. Moreover, the imaging system anchors the MD6DM model to the physical model and synchronizes the two, such that a new image is created and overplayed over top of the physical model according to movement around the model, such as using a physical probe. This is accomplished by streaming the image generator directly to an HMD, tracking a position and location of the HMD, and adjusting the image generator based on the tracked movement. Thus, a dependency is created between the virtual model and the physical model. Guides can be provided to the user to enable the user to simulate and practice placing a virtual accessory, such as a model of an implantable screw, into a desired location in the physical model.