Interventional Device Handling Feedback From 3D Vascular Analysis
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Solution Overview
Problem
Interventional device handling in medical procedures requires constant attention and awareness to avoid unintentional punctures, and existing motor-supported devices are complex and may not provide sufficient feedback.
Innovation Solution
A support device with data input, processor, and output interface analyzes 3D anatomic data and spatial device data to provide mechanical relation feedback, including friction, tension, and tortuosity, using haptic, tactile, visual, and acoustic feedback to assist handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If motor supported handling devices are used to provide relief in manually applied operating forces, then the ease of operation is improved, but the device complexity increases and high awareness is still needed to avoid unintentional puncture
Solution Approach 1:
The patent replaces mechanical force measurement systems with image-based analysis. Instead of using complex force sensors and mechanical measurement devices, the system uses 3D anatomic data and 2D image data to computationally determine friction and tension forces. This substitution of mechanical measurement with optical/image-based analysis reduces device complexity while maintaining ease of operation.
Solution Approach 2:
The patent creates a virtual model of the device and anatomy based on 3D anatomic data and 2D images. This virtual copy allows the system to simulate and analyze mechanical relations without requiring physical sensors on the actual device. The virtual model enables force calculation through image analysis alone, avoiding complex mechanical sensing systems.
2Measurement precision
If contact force sensors are placed at the tip of the device to provide alerts, then the measurement precision is improved, but the device complexity increases and constant attention is still required
Solution Approach 1:
The patent replaces physical contact force sensors with an image-based computational system. The system uses 3D anatomic data combined with 2D image sequences to calculate friction and tension forces mathematically. This eliminates the need for complex sensor arrays at the device tip while maintaining precise measurement of mechanical relations through optical analysis.
Solution Approach 2:
The patent introduces image data as an intermediary between the physical device and the measurement system. Instead of directly measuring forces with sensors, the system uses 2D images as a mediator to infer mechanical relations. This intermediary approach allows precise force measurement without physical contact sensors, reducing device complexity.
3Device complexity
If image analysis is used to determine mechanical relations without sensors on the device, then the device complexity is reduced, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent performs preliminary action by creating a 3D anatomic model before the actual measurement process. This pre-established 3D model serves as a reference framework that simplifies subsequent force calculations from 2D images. By preparing the anatomical geometry in advance, the system reduces the computational complexity of real-time friction and tension analysis.
Solution Approach 2:
The patent segments the measurement problem into distinct components: 3D anatomic data acquisition, 2D image sequence analysis, friction calculation, and tension calculation. This segmentation allows each aspect to be handled by specialized algorithms, making the overall complex measurement task more manageable and automatable through systematic image processing.
Data Source
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AI summary
The present invention relates to using an interventional device. In order to further facilitate handling of inserted devices, a support device (10) for handling of an interventional device is provided that comprises a data input (12), a data processor (14) and an output interface (16). The data input is configured to provide 3D anatomic data (18) of a region of interest comprising a vascular structure, and to provide current spatial device data (20) of an interventional device inserted in the vascular structure. The data processor is configured to analyze a mechanical relation (22) of the interventional device and the vascular structure based on the 3D anatomic data and the spatial device data. The output interface is configured to provide the mechanical relation for a handling of the interventional device.