Robotic Surgical Pivot Setting to Reduce Abdominal Wall Influence

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Solution Overview

Problem

Existing robotic surgical systems face challenges in setting the pivot position of surgical instruments to minimize the impact on the patient's abdominal wall and ensure precise, effective surgical maneuvers.

Innovation Solution

A robotic surgical system with a manipulator arm, pivot position setter, and controller that allows for setting a temporary pivot position based on operator input and adjusting it by a predetermined length to store as the final pivot position, ideally closer to the abdominal wall than the body surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the pivot position is set on the body surface of the patient, then the distance measurement is simplified, but the influence of rotation on the abdominal wall increases

Engineering Contradiction:

Improvedistance measurementVSAvoidinfluence on abdominal wall

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by automatically calculating and setting the optimal pivot position before surgery begins. The controller pre-determines the pivot position based on the measured distance from the body surface, eliminating the need for manual positioning during surgery and ensuring the pivot is optimally located to minimize abdominal wall influence.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system introduces an intermediary computational layer between the body surface measurement and the actual pivot position. The controller acts as a mediator that processes the distance measurement and transforms it into the optimal pivot position, rather than directly using the body surface as the pivot point.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the pivot position is set closer to the center of the abdominal wall, then the influence on the patient is reduced, but the positioning complexity increases

Engineering Contradiction:

Improveinfluence on patientVSAvoidpositioning complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system implements self-service by automatically determining the optimal pivot position through computational algorithms. The controller autonomously calculates the pivot position based on measured parameters, eliminating the need for complex manual positioning procedures and reducing the burden on surgeons to perform intricate setup tasks.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces complex mechanical positioning procedures with computational methods. Instead of requiring manual measurement and physical adjustment to find the optimal pivot position, the system uses the controller to calculate and set the position based on electronic measurements, substituting mechanical complexity with computational simplicity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12426968B2Robotic surgical system and method for setting pivot position

Publication Date: 2025.09.30 KAWASAKI JUKOGYO KK

AI summary

In a robotic surgical system, a controller is configured or programmed to set a temporary pivot position based on an operation on a pivot position setter and store a position adjusted by a predetermined length from the temporary pivot position as a pivot position in a storage.