Handheld Medical Navigation System for Shape Determination
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Solution Overview
Problem
Current methods for determining the shape of medical technology articles, such as stabilization elements in surgical fixation systems, are complex and require extensive equipment, making them difficult to use effectively for preoperative shape assessment and adjustment.
Innovation Solution
A handheld integrated navigation system with a camera and data processing unit allows for the determination of the shape of medical technology articles by analyzing images of a marking device and the article, enabling precise shape identification without the need for extensive equipment or spatial fixation, and can also adjust the shape of the article using deformation devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to determine the shape of medical devices, then measurement precision can be achieved, but device complexity and equipment requirements increase significantly
Solution Approach 1:
The patent combines the camera, lighting unit, and data processing unit into a single integrated handheld navigation system. This merging of components simplifies the overall equipment while maintaining the capability to capture images, provide illumination, and process shape determination data, thereby resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent introduces a marking device as an intermediary element that is attached to the medical device being measured. This marking device serves as a reference object that facilitates shape determination through image processing without requiring complex direct measurement equipment, thus achieving accurate shape measurement while keeping the system relatively simple
2Measurement precision
If multiple images are captured to determine shape accurately, then measurement precision improves, but loss of time increases due to multiple capture and processing steps
Solution Approach 1:
The patent attaches a marking device to the medical device before the measurement process. This preliminary action establishes a reference coordinate system in advance, allowing the data processing unit to quickly and accurately determine shape from captured images without requiring multiple image captures or complex post-processing, thereby reducing time loss while maintaining precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies the determination and adjustment of medical technology article shapes, reducing equipment requirements and improving handling, while allowing for precise preoperative assessment and in-situ shape changes, enhancing the effectiveness of surgical procedures.
Implementation Method 1
an optical detection unit with a camera, which can capture images of the medical device
Data Source
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AI summary
The invention relates to a medical instrument set with a navigation system (24) comprising an optical detection unit (52) with a camera (50) and a data processing unit (48) coupled to the optical unit, a medical device article (12), and a marking device (22) which is held directly or indirectly on the article (12) and positioned in a defined spatial arrangement relative to it, or which marking device comprises or is formed by the article (12), wherein the position and orientation of the marking device (22) can be determined by the navigation system (24), wherein at least one image of the marking device (22) and the article (12) can be produced by means of the detection unit (52), and the position and shape of the article (12) can be determined by the data processing unit (48) based on an image. The invention also relates to a method for determining the shape of a medical device article.