Ball-Joint Holding Controller With Adjustable Fixing Force

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Solution Overview

Problem

Existing medical devices are difficult to fix in a desired position and angle during medical procedures due to limitations in adjusting the fixing force and angle, whether assisted by a user or auxiliary devices.

Innovation Solution

A holding controller with a ball joint, fixing pressurization member, elastic member, and fixing controller that adjusts the fixing force by contracting or extending the elastic member through axial rotation, allowing for flexible positioning and angling of medical devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an assistant or auxiliary device is used to fix the medical device, then the medical device can be fixed in a specific position, but the angle of the medical device cannot be continuously changed during the treatment process

Engineering Contradiction:
Improvefixing stabilityVSAvoidangle adjustment flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by replacing static fixing mechanisms with a dynamic ball joint system. The ball part and socket joint allow continuous angular adjustment during treatment, while the elastic member maintains reliable fixation. This enables the medical device to be both securely fixed and continuously repositioned in different angles as needed.

Inventive Principle:
Principle #15Dynamics

2Reliability

If an auxiliary device is used to fix the medical device, then the medical device can be fixed in a specific position, but the fixing force for holding the medical device cannot be adjusted

Engineering Contradiction:
Improvefixing stabilityVSAvoidfixing force adjustability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent implements parameter changes by using an elastic member (spring) whose compression degree can be varied. The assistant can adjust the compression amount of the elastic member to change the fixing force, allowing the same fixing mechanism to adapt to different medical devices and treatment requirements while maintaining reliable fixation.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If a fixed fixing force is used, then the medical device can be securely held, but it cannot be easily repositioned or angled during treatment

Engineering Contradiction:
Improveholding forceVSAvoidrepositioning ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The dynamic ball joint mechanism allows the medical device to be securely held when fixed and easily repositioned when needed. The elastic member provides continuous holding force while the ball and socket joint enables smooth angular adjustments, combining secure fixation with operational flexibility.

Inventive Principle:
Principle #15Dynamics

4Measurement precision

If multiple assistant hands are used to adjust the medical device position, then more precise positioning can be achieved, but it increases the complexity of operation and reduces efficiency

Engineering Contradiction:
Improvepositioning precisionVSAvoidoperation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The ball joint mechanism with elastic member allows a single assistant to easily adjust the medical device position and angle by simply moving the device to the desired location. The elastic member automatically maintains appropriate fixing force, eliminating the need for multiple hands or complex adjustment procedures while achieving precise positioning.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables secure fixation and adjustable positioning/angling of medical devices, facilitating ease of use and adaptability during medical procedures.

Implementation Method 1

an elastic member configured to transmit force forward to the fixing pressurization member via elastic force

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentEP4647032A1Holding controller
Publication Date: 2025.11.12 GO MOO SAENG
  • EP4647032A1 patent drawingFigure 1
  • EP4647032A1 patent drawingFigure 2
  • EP4647032A1 patent drawingFigure 3

AI summary

The present invention relates to a holding controller and, in particular, to a holding controller that can adjust a fixing force for holding an object to be fixed such as a medical instrument, thus making it easy to change the position and angle of the object to be fixed in various situations, the holding controller comprising a holding body that has, provided in the front end thereof, a ball portion of a ball joint connected to an object to be fixed and can control the movement of the ball portion, wherein the holding body comprises therein: a fixed pressing member which can be in contact with the ball portion; an elastic member which transmits force to the fixed pressing member forward via the elastic force; and a fixed control means which contracts the elastic member backward or extends the elastic member forward.