Remote Robotic Intervention Control Under Network Delay Constraints

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Solution Overview

Problem

Existing robotic medical procedure systems face challenges in allowing remote operation due to issues with secure network connections, transmission delays, and deadlock situations, which can affect the safety and stability of medical procedures.

Innovation Solution

A method and system for remotely controlling a robotic medical device system using a control center at a remote site, which involves transmitting control signals, determining and managing transmission delays, and adjusting the operation of the medical device based on these delays to ensure safe and stable procedure execution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If remote control of robotic medical devices is implemented, then access to medical specialists for remote patients is improved, but transmission delays and network security issues worsen system reliability

Engineering Contradiction:

Improveremote operation capabilityVSAvoidsystem stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A local control site acts as an intermediary between the remote control center and the robotic medical device system. The local control site receives control signals from the remote center, executes them locally, and manages device operation, thereby mediating the connection and reducing the impact of network delays on system reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system pre-establishes secure network connections and authentication protocols before remote operation begins. The local control site is pre-configured with device control capabilities, allowing immediate response when control signals are received without waiting for network confirmation.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If real-time control signals are transmitted remotely, then procedural flexibility is improved, but transmission delays affect control precision

Engineering Contradiction:

Improveprocedural flexibilityVSAvoidcontrol signal timing accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system implements feedback mechanisms where the local control site monitors the actual device response to control signals and compares it with expected outcomes. This feedback loop allows for real-time adjustment of control parameters to compensate for transmission delays and maintain control precision.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control system dynamically adjusts the timing and sequencing of control signals based on real-time system state and measured transmission delays. The local control site modifies control signal parameters adaptively to maintain precise control despite variable network conditions.

Inventive Principle:

Principle #15Dynamics

3Reliability

If secure network tunnels are established for remote communication, then security is improved, but connection establishment time and complexity increase

Engineering Contradiction:

Improvecommunication securityVSAvoidnetwork configuration complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system implements automated certificate authentication and tunnel establishment protocols that self-configure secure connections without requiring manual intervention. The local control site and remote center automatically exchange authentication credentials and establish encrypted communication channels, reducing configuration complexity while maintaining security.

Inventive Principle:

Principle #25Self-service

4Stability of the object's composition

If local control site is introduced as intermediary, then system stability is improved, but control system complexity increases

Engineering Contradiction:

Improvesystem stabilityVSAvoidcontrol architecture complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The control system is segmented into distinct functional modules: remote control center for high-level decision making, local control site for real-time execution, and robotic device for procedure performance. Each segment operates semi-independently with well-defined interfaces, improving stability through modular architecture while managing complexity through clear separation of concerns.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12239400B2Remote communications and control system for robotic interventional procedures

Publication Date: 2025.03.04 SIEMENS HEALTHINEERS ENDOVASCULAR ROBOTICS INC

AI summary

A method for using a control center at a remote site to control operation of a robotic medical device system at a local site includes transmitting a control signal from the control center to the robotic medical device system, determining a delay in transmission of the control signal, comparing the delay to a threshold delay value and operating the robotic medical device system based on the comparison of the delay to the threshold delay value.