Robotic Surgical Arm Posture Adjustment During Automated Transition

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Solution Overview

Problem

Existing robotic surgical systems lack the ability to adjust the robot arm's position or posture after transition, limiting flexibility based on the specific conditions of the storage environment.

Innovation Solution

A robotic surgical system with a control method that allows operators to adjust a variable control parameter to change the robot's posture before transition, enabling the robot arm to assume an appropriate posture based on the situation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the robot arm transitions to a fixed pre-established position, then the transition process is simple and automated, but the operator cannot adjust the position or posture according to the situation

Engineering Contradiction:

Improveautomation of transitionVSAvoidadjustability of posture

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent makes the previously fixed pre-established position dynamic by allowing the operator to adjust the posture parameters (such as position coordinates and orientation angles) before transition. The control device receives adjustment operations during the transition process and dynamically modifies the target posture, enabling both automated execution and flexible adaptation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements feedback by monitoring the transition state and allowing continuous adjustment of posture parameters during the transition process. The control device receives adjustment operations from the operator based on the current transition state and modifies the target posture accordingly, creating a closed-loop control system.

Inventive Principle:

Principle #23Feedback

2Device complexity

If the robot arm uses a fixed pre-established position, then the system complexity is reduced, but the flexibility for different storage conditions is limited

Engineering Contradiction:

Improvesimplicity of transition controlVSAvoidadaptability to storage conditions

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent transforms the static pre-established position into a dynamic target posture that can be adjusted during transition. The control device maintains the simplicity of automated transition while adding the capability to modify posture parameters based on storage conditions, achieving both simplicity and adaptability.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the robot arm transitions to a predetermined posture, then the transition is deterministic and reliable, but the operator cannot optimize the posture for specific situations

Engineering Contradiction:

Improvedeterministic transitionVSAvoidoptimization capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent maintains deterministic transition by providing a well-defined target posture while adding feedback capability that allows the operator to adjust the target posture during transition based on observed conditions. The control device processes adjustment operations and modifies the transition target accordingly, preserving reliability while enabling optimization.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250339219A1Robotic surgical system and control method for robotic surgical system

Publication Date: 2025.11.06 KAWASAKI JUKOGYO KK

AI summary

In a robotic surgical system, a variable control parameter is variable within a predetermined range by operating an operation unit, and a control device is configured or programmed to control a robot main body to transition from a current posture to a first posture obtained after adjustment of the variable control parameter, based on an operation on the operation unit.