Intraoperative Video Playback in Computer-Assisted Surgery
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Solution Overview
Problem
Current computer-assisted surgical systems do not allow surgeons to intra-operatively review or interact with recorded video images from earlier stages of a surgical procedure, limiting their ability to verify anatomical landmarks or compare previous states with current states during surgery.
Innovation Solution
The system captures and records video images, allowing surgeons to display both current and recorded video images simultaneously, with features like highlighting anatomical structures, changing the field of view, and overlaying recorded images on current ones, enabling intraoperative review and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If surgeons use current computer-assisted surgical systems, then they can perform minimally invasive surgery with image guidance, but they cannot intra-operatively review or interact with recorded video images from earlier stages of the procedure
Solution Approach 1:
The system records video images at earlier stages of the surgical procedure before anatomical structures are altered. This preliminary recording allows surgeons to later review the pre-altered state of anatomical landmarks, enabling verification and comparison without needing to physically revisit previous surgical moments.
Solution Approach 2:
The system creates visual copies of the surgical field at different time points through video recording. These copied images can be displayed and interacted with during surgery, allowing surgeons to compare the current surgical state with previous states without losing the ability to verify anatomical landmarks.
2Loss of information
If surgeons cannot review recorded video images intra-operatively, then the system remains simple, but surgeons lose the ability to compare previous states with current states during surgery
Solution Approach 1:
The system merges the video recording functionality with the existing computer-assisted surgical system. The recorded video images are integrated into the surgical display, allowing surgeons to view both current and historical surgical states through a unified interface without requiring separate complex systems.
Solution Approach 2:
The system uses video recording as an intermediary to preserve and retrieve previous surgical states. This intermediary mechanism allows comparison between different time points by mediating the information flow from past surgical moments to the current surgical decision-making process.
3Measurement precision
If the system displays only current video images, then the display remains simple, but surgeons cannot verify anatomical landmark positions at different stages of the procedure
Solution Approach 1:
The display system transitions from showing only static current images to dynamically switching between current and recorded images. Surgeons can interactively navigate through different time points, making the display adaptable to verification needs while maintaining ease of operation through intuitive controls.
Solution Approach 2:
The system adds a temporal dimension to the video display by incorporating recorded images from different time points. This allows surgeons to verify anatomical landmarks across time, not just in space, by comparing current images with historical recordings through the enhanced display interface.
Data Source
AI summary
Computer-assisted surgical systems and methods provide intraoperative playback of and interaction with recorded video images and/or a 3D model while displaying current video images. The methods and related surgical systems involve capturing, by a two-dimensional (2D) or three-dimensional (3D) video camera, current video images and recording the captured video images. A user interface displays the current video images and the recorded video images and/or the 3D model and enables a user to interact with either or both of them.