Medical Intervention Apparatus with Needle Rotation and Insertion
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Solution Overview
Problem
Current needle intervention methods expose medical staff to radiation, are inaccurate, require repeated needle insertions, and do not support needles of varying thicknesses, leading to patient discomfort and increased radiation exposure.
Innovation Solution
A medical intervention apparatus with a needle rotation unit and insertion unit, driven by motors and timing belts, that automates needle insertion, uses radiolucent materials for reduced radiation exposure, and includes sterilization membranes and adjustable grippers to accommodate different needle sizes, enhancing accuracy and reducing procedure time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual needle insertion is performed by medical staff, then the procedure can be performed with simple equipment, but medical staff are exposed to radiation and insertion accuracy is poor
Solution Approach 1:
A robotic arm acts as an intermediary between the operator and the needle insertion process. The robotic arm executes precise needle insertion movements based on pre-planned trajectories, eliminating the need for manual insertion while maintaining simplicity in the overall system architecture through automated control.
Solution Approach 2:
The manual mechanical insertion process is replaced with an automated robotic system that uses pre-programmed motion paths and imaging guidance to achieve precise needle placement. This substitution eliminates radiation exposure to medical staff while improving insertion accuracy through automated control mechanisms.
2Measurement precision
If repeated needle insertion attempts are performed to achieve accurate positioning, then insertion accuracy improves, but patient discomfort increases and procedure time extends
Solution Approach 1:
The system performs preliminary actions by pre-planning the needle insertion trajectory using imaging data and computational algorithms before the actual insertion. This pre-planning includes identifying the optimal path, avoiding critical structures, and preparing the robotic arm with the exact motion sequence required, thereby achieving accurate insertion on the first attempt without repeated trials.
Solution Approach 2:
The system incorporates real-time feedback mechanisms where imaging apparatus continuously monitor needle position during insertion. This feedback loop allows the system to detect and correct any deviations from the planned trajectory, ensuring accurate positioning while minimizing the need for repeated insertion attempts and reducing procedure time.
3Measurement precision
If repeated needle insertion attempts are performed, then accurate positioning is achieved, but radiation exposure to patient and staff increases
Solution Approach 1:
The system performs comprehensive pre-planning of the needle trajectory using non-ionizing imaging modalities and computational algorithms before the actual needle insertion. This preliminary planning phase allows the system to determine the optimal insertion path and execute it in a single attempt, thereby achieving accurate positioning while minimizing radiation exposure from repeated fluoroscopic imaging attempts.
Solution Approach 2:
The automated robotic system replaces manual needle insertion with precision-controlled automated movements guided by pre-planned trajectories. This substitution eliminates the need for repeated insertion attempts by medical staff, thereby reducing the cumulative radiation exposure that would result from multiple fluoroscopic imaging attempts to achieve accurate positioning.
4Productivity
If a single needle insertion is performed, then procedure time is reduced, but insertion accuracy decreases
Solution Approach 1:
The system performs detailed pre-planning of the needle insertion trajectory using imaging data and computational algorithms before the actual insertion. This preliminary action includes identifying the optimal path, calculating precise motion parameters, and preparing the robotic arm with the exact sequence of movements required, enabling accurate single-attempt insertion that improves both efficiency and precision.
Solution Approach 2:
The system creates a virtual copy or digital model of the patient's anatomy using imaging data, allowing for simulation and optimization of the needle trajectory before actual insertion. This virtual planning phase enables the system to determine the optimal single insertion path that achieves accurate positioning while minimizing procedure time and radiation exposure.
5Illumination intensity
If radiopaque materials are used in the apparatus, then visibility during imaging is improved, but radiation exposure increases
Solution Approach 1:
The apparatus uses radiolucent materials for components that are positioned in the radiation field during imaging, allowing these specific local areas to be transparent to radiation. This selective material selection maintains visibility where needed while minimizing overall radiation exposure by using materials that do not attenuate radiation in the imaging path.
Solution Approach 2:
The system employs alternative visualization methods that do not rely on radiopaque materials, such as using radiolucent components combined with surface markings, optical indicators, or image-guided overlay techniques that provide visibility during imaging without increasing radiation exposure from radiopaque substances.
Data Source
AI summary
Disclosed is a medical intervention apparatus. The medical intervention apparatus includes a needle rotation unit configured to include a first needle rotation member, a second needle rotation member that is disposed to be separated from the first needle rotation member, and a first driver that drives the first and second needle rotation members to rectilinearly move in opposite directions and a needle insertion unit configured to insert a needle, which is inserted between the first needle rotation member and the second needle rotation member, into a target.