Surgical Robot Mechanism Switching Single-Port Multi-Port Modes

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Solution Overview

Problem

Current minimally invasive surgical robots are limited to specific types of surgery and cannot adapt to varying lesion locations and environmental constraints, requiring multiple robots to meet different surgical needs.

Innovation Solution

A surgical robot mechanism with a function conversion frame and posture adjustment arm assemblies that allows switching between single-port and multi-port minimally invasive surgery modes, enabling flexible adjustment of surgical tools for specific environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single type of surgical robot is used for specific surgery, then the robot can be optimized for that specific procedure, but it cannot adapt to varying lesion locations and surgical environments

Engineering Contradiction:
Improvesurgical operation reliabilityVSAvoidadaptability to different surgical environments
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The surgical robot is designed with a universal platform that can perform multiple surgical functions through reconfigurable arm assemblies. The robot can switch between single-port and multi-port surgery modes, and between different surgical tool configurations, allowing one robot to serve multiple surgical needs rather than requiring separate specialized robots for each procedure type

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The robot employs dynamically reconfigurable arm assemblies that can be adjusted during surgery to adapt to different lesion locations and spatial constraints. The arm assemblies can change their configuration dynamically based on the specific surgical requirements, enabling the robot to maintain reliability across varying surgical environments

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple types of surgical robots are equipped to meet different surgical needs, then all surgical requirements can be met, but the device complexity and cost increase

Engineering Contradiction:
Improvecoverage of surgical needsVSAvoidnumber of robot types required
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single surgical robot platform is designed with universal capabilities to perform multiple surgical procedures through reconfigurable arm assemblies and tool interchangeability. This eliminates the need for multiple specialized robots, reducing device complexity while maintaining comprehensive coverage of surgical needs

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The robot is divided into modular components with interchangeable arm assemblies that can be segmented and reconfigured for different surgical tasks. This modular segmentation allows one robot to perform multiple functions by simply changing the arm assembly configuration, avoiding the need for multiple complete robot systems

Inventive Principle:
Principle #1Segmentation

3Device complexity

If traditional long and straight rod-shaped surgical instruments are used, then the instruments are simple in structure, but they cause surgical tool interference and do not conform to intuitive operation rules

Engineering Contradiction:
Improvesurgical instrument structureVSAvoidoperation smoothness
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The robotic arm assemblies provide dynamic, multi-degree-of-freedom movement capabilities that allow the surgical tools to reach various positions and orientations naturally. This dynamic positioning system eliminates the interference problems of rigid rod-shaped instruments and makes the operation smoother by allowing intuitive control of tool movement through the robotic system

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12011245B2Surgical robot mechanism with single-port and multi-port minimally invasive surgery functions
Publication Date: 2024.06.18 TIANJIN UNIV
  • US12011245B2 patent drawing
  • US12011245B2 patent drawing
  • US12011245B2 patent drawing

AI summary

A surgical robot mechanism with single-port and multi-port minimally invasive surgery functions includes: a bracket; and a manipulator connected to the bracket, and supported by the bracket, the manipulator includes: a support arm movable along the bracket; a function conversion frame fixed on the support arm and configured for the surgical robot mechanism to switch between a single-port minimally invasive surgery mode and a multi-port minimally invasive surgery mode; a plurality of posture adjustment arm assemblies connected to the function conversion frame, each posture adjustment arm assembly configured to adjust a position and posture of a surgical tool connected thereto for performing a surgical operation.