Trocar-Integrated Medical Image Switching for Surgical Visualization
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Solution Overview
Problem
During surgery, operators face difficulties in accurately locating important blood vessels and nerves due to deviations between pre-surgical CT or MRI images and the actual surgical site, leading to obstructive superimposed images in existing medical imaging techniques.
Innovation Solution
A medical image processing apparatus and system that includes a control unit to detect the insertion state of medical instruments through trocars, displaying either live view images or pre-acquired simulation images based on the instrument's state, allowing seamless switching between modes to support the operator without distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If pre-surgical CT or MRI images are superimposed on the surgical site, then the operator can reference anatomical structures, but the superimposed image becomes an obstruction and the image state deviates from the actual patient state
Solution Approach 1:
The display device dynamically switches between displaying the live view image and the simulation image based on the detection result from the trocar. When the medical instrument is detected to be in a specific state (e.g., inserted to a certain depth or position), the system automatically transitions between image modes, making the display adaptable to the surgical progress and eliminating visual obstruction while preserving anatomical information reference.
2Measurement precision
If the operator relies on pre-acquired CT or MRI images, then anatomical reference is available, but the shape and position of surgical sites deviate from the images making it difficult to locate marks
Solution Approach 1:
The trocar detects the state of the medical instrument (such as insertion depth, position, or operational status) and provides feedback to the control device. Based on this feedback, the display device selectively shows either the live view image or the simulation image. This closed-loop system ensures that the operator receives accurate anatomical reference information that corresponds to the actual surgical state, resolving the deviation between pre-acquired images and real surgical anatomy.
3Productivity
If a medical instrument is inserted through the trocar, then surgical procedure can proceed, but the operator cannot instantaneously locate important blood vessels and nerves due to image deviation
Solution Approach 1:
The system dynamically adapts the displayed image type based on the real-time state of the medical instrument detected by the trocar. When the instrument reaches specific states during insertion or operation, the display switches between live view and simulation images, ensuring that anatomical structures are accurately localized throughout the procedure without compromising surgical speed.
4Loss of information
If the system displays only pre-acquired simulation images, then anatomical reference is provided, but the state in the image deviates from the actual state of the patient
Solution Approach 1:
The display device transitions from static pre-acquired simulation images to a dynamic system that switches between simulation images and live view images based on trocar detection results. This ensures the displayed image state accurately reflects the actual patient state at each moment during surgery, while still providing anatomical reference information when simulation images are displayed.
Data Source
AI summary
A medical image processing apparatus includes a control unit configured to cause, based on a detection result of at least one trocar into which a medical instrument is inserted, the at least one trocar being configured to detect a first state and a second state, the first state and the second state indicating an insertion state of the medical instrument into a subject, a display device to display at least one of a first image generated by capturing an image of an observation object inside the subject and a second image of the observation object inside the subject, the second image being previously acquired.