Actuating Drive Targeting Device for Medical Instruments
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Solution Overview
Problem
Conventional targeting devices for medical instruments, especially those with heavy stereotactic frames, face challenges in achieving precise and reproducible positioning due to their rigid structure, limiting variability and increasing radiation exposure for medical staff during surgeries and radiotherapy procedures.
Innovation Solution
The apparatus incorporates two actuating drives with adjustable arms in the X-Y plane, allowing for precise and remote-controlled positioning of medical instruments, reducing radiation exposure and enabling precise guidance in all spatial axes, with a lightweight and flexible design that can be pre-adjusted and fine-tuned for accurate targeting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a heavy stereotactic frame is used for guiding medical instruments, then structural stability is improved, but positioning reproducibility and variability deteriorate
Solution Approach 1:
The patent replaces the heavy mechanical stereotactic frame with a computer-supported navigation system that uses electronic sensors, processors, and display devices to track and guide medical instruments. This substitution eliminates the mechanical constraints of the frame while maintaining positioning accuracy through digital tracking and feedback mechanisms.
Solution Approach 2:
The navigation system is designed to be adaptable to various surgical procedures and patient anatomies. It can track multiple instruments simultaneously, provide real-time positioning feedback, and accommodate different entrance locations and target points, making it universally applicable rather than constrained to a fixed mechanical framework.
2Strength
If a fixed stereotactic frame is used, then structural rigidity is improved, but adaptability to different entrance locations deteriorates
Solution Approach 1:
The navigation system transitions from a static, fixed frame to a dynamic, movable apparatus that can be repositioned and adjusted to access different entrance locations on the patient's body. The system maintains rigidity when positioned but allows for relocation and reconfiguration to accommodate various surgical approaches and anatomical variations.
3Ease of operation
If manual positioning of the targeting device is performed, then operational simplicity is improved, but positioning precision deteriorates
Solution Approach 1:
The navigation system incorporates real-time feedback mechanisms that continuously monitor the position of medical instruments and provide immediate information to the surgeon. This feedback loop allows for precise positioning adjustments while maintaining ease of operation, as the system guides the surgeon's movements rather than requiring complex manual calculations or adjustments.
Solution Approach 2:
The system introduces a computer-based intermediary between the surgeon's manual operations and the actual instrument positioning. This intermediary processes positioning data, calculates optimal trajectories, and provides guidance information, thereby enhancing precision without eliminating the simplicity of manual instrument manipulation.
4Measurement precision
If corrections of needle position are performed during surgery, then target accuracy is improved, but surgical time and complexity increase
Solution Approach 1:
The navigation system enables preliminary positioning and verification of instrument trajectories before actual needle insertion or surgical intervention. By pre-planning and pre-positioning based on 3D reconstructed anatomical data, the system minimizes the need for intraoperative corrections, thereby maintaining high target accuracy while reducing surgical time and procedural complexity.
Data Source
AI summary
The invention relates to a device for controlling corporeal structures, especially for introducing puncture needles or operation probes. Said device comprises a base plate (1), at least one base holder (2) applied to the base plate (1), and holding rods (3, 4) that are fixed to the base holder in a fixed manner and are used to hold and position a targeting device (10) for a medical instrument (8). The aim of the invention is to create one such device in such a way that it has a simple structure and can guide medical instruments in a variable and precise manner. To this end, the targeting device (10) is mounted on two adjustment arms (7) that can be respectively displaced in the X and/or Y plane, on the free ends of the holding rods (3, 4), by means of an actuating drive (6).