Robotic Electrosurgical Instrument Interface for EMI Control
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Solution Overview
Problem
Existing robotic systems face challenges in achieving high electromagnetic compatibility and flexibility in using different medical instruments, particularly electrosurgical instruments, due to complex electrical connections and interference issues.
Innovation Solution
A medical robot system with a robotic arm that holds instrument units via a holding device, each equipped with a generator, allowing for flexible and simple use of electrosurgical instruments, with generators positioned adjacent to the instruments to minimize electromagnetic interference and enable easy connection to a generator control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the generator is integrated into the robotic arm, then electromagnetic compatibility is improved, but device complexity increases
Solution Approach 1:
The system divides the generator function into separate instrument units that can be independently attached to the robotic arm. Each instrument unit contains its own generator, separating the electromagnetic signal generation from the main robotic arm control system. This segmentation reduces electromagnetic interference with the control systems while maintaining functional integration through standardized interfaces.
Solution Approach 2:
The patent introduces an interface unit as an intermediary between the robotic arm and the instrument units. This interface serves as a mediator that manages electrical connections and signal transmission without requiring direct integration of the generator into the robotic arm, thereby reducing electromagnetic interference while maintaining system coherence.
2Adaptability or versatility
If the generator is integrated into each instrument unit, then flexibility and ease of instrument replacement are improved, but device complexity increases
Solution Approach 1:
The robotic arm is designed with universal interfaces that can accommodate multiple types of instrument units. Each instrument unit contains its own generator, making each unit self-contained and interchangeable. This universality allows different medical instruments to be used with the same robotic arm without requiring reconfiguration of the main system, improving flexibility while managing complexity through standardized connection protocols.
3Adaptability or versatility
If multiple electrical connections are established between the robotic arm and instrument units, then functionality is improved, but electromagnetic interference increases
Solution Approach 1:
The generator function is extracted from the main robotic arm and placed within individual instrument units. This extraction removes the primary source of electromagnetic interference from the central control system while maintaining all necessary electrical connections through the instrument-unit-specific interfaces. The high-frequency signals are contained within each instrument unit, reducing interference with the robotic arm's control electronics.
Data Source
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AI summary
The invention relates to a medical robot system (10) comprising a robot (11) having at least one robot arm (12). At least one instrument unit (19) is held on the at least one robot arm (12) and can be moved and/or positioned by means of the robot arm (12). Each instrument unit (19) has a medical instrument (20), preferably an electrosurgical instrument (21), and a generator (22) that generates and provides an output signal (A), in particular an RF output signal, for the instrument (20). An interface (32) is arranged on the robot arm (12) with which each instrument unit (19) held on the robot arm (12) can be electrically and/or optically coupled to establish a communication connection. The connection can be wireless and/or wired. The robot (11) orThe robot arm (12) has at least one generator control unit (31), wherein each interface (32) is communicatively connected to an associated generator control unit (31) in order to transmit a generator control signal (C) from the generator control unit (31) to the at least one instrument unit (19) connected to the interface (32). The generator (22) and the generator control unit (31) are thus separate from each other, with the generator (22) being located outside the robot (11), while the at least one generator control unit (31) is part of the robot (11) and may be integrated into the robot (11) or the robot arm (12).