Surgery Assisting Device Endoscope Viewpoint Map Rotation
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Solution Overview
Problem
During vitreous body surgery, it is challenging for the operator to estimate the inserted state of the endoscope within the eyeball and grasp its position from the captured image displayed on the monitor, making it difficult to perform precise surgery.
Innovation Solution
A surgery assisting device with an arm unit to hold the endoscope, an image generating section to create a three-dimensional endoscope viewpoint map image, and a display control section to rotate the endoscope captured image and viewpoint map image in conjunction, allowing the operator to visualize the positional relation between the endoscope and the subject without positional displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the endoscope captured image is rotated to change the viewing angle, then the operator can observe different positions within the eyeball, but it becomes difficult to estimate the inserted state of the endoscope and grasp its position
Solution Approach 1:
A three-dimensional model of the eyeball is introduced as an intermediary visual aid. This model displays the endoscope's position and orientation within the eyeball, serving as a mediator between the rotated endoscope image and the operator's understanding of spatial relationships. The model maintains fixed spatial reference frames that help the operator grasp the inserted state even when the endoscope image is rotated.
Solution Approach 2:
The solution transitions from a two-dimensional endoscope image to a three-dimensional model representation. By adding the third dimension (depth and spatial orientation) through the 3D eyeball model, the system preserves spatial orientation information that would otherwise be lost in 2D rotated images, allowing operators to understand the endoscope's inserted state from multiple spatial perspectives.
2Object-affected harmful factors
If the endoscope is inserted into the eyeball to avoid pressing the eyeball, then the burden on the eyeball is reduced, but it becomes difficult to estimate the inserted state of the endoscope
Solution Approach 1:
The three-dimensional eyeball model acts as an intermediary that visualizes the endoscope's inserted state without requiring physical manipulation or additional invasive procedures. The model provides real-time feedback on position and orientation, making the inserted state detectable through visual information rather than requiring the operator to physically assess the situation.
Solution Approach 2:
The system provides continuous visual feedback through the 3D model showing the endoscope's position and orientation within the eyeball. This feedback mechanism allows the operator to monitor the inserted state in real-time, adjusting the endoscope position as needed while maintaining a non-invasive approach.
3Loss of information
If multiple images (endoscope captured image and viewpoint map image) are displayed on separate monitors, then complete information is provided, but the operator must move the line of sight reducing surgical efficiency
Solution Approach 1:
The system merges the endoscope captured image and the three-dimensional viewpoint map image into a single integrated display. This combination presents all necessary information (both the detailed endoscope view and the spatial orientation context) on one screen, eliminating the need for the operator to shift attention between multiple monitors while maintaining complete information availability.
Data Source
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AI summary
In order to make display that makes it possible to spatially grasp an inserted state of an endoscope with respect to a subject, a surgery assisting device includes an arm unit including a holder for holding an endoscope and configured to adjust a position of the endoscope in a state in which the holder holds the endoscope, an image generating section configured to generate an endoscope viewpoint map image that is an image of a three-dimensional model of a subject from a viewpoint of the endoscope held by the holder, a display control section configured to perform display control of the endoscope viewpoint map image and an endoscope captured image that is obtained by the endoscope, and an operating unit for rotating the endoscope captured image. The displayed endoscope captured image is rotated according to operation of the operating unit without a positional displacement of the endoscope being caused, and the endoscope viewpoint map image is rotated in conjunction with thε; rotation of the endoscope captured image.