Surgical Traction Apparatus Using Adjustable Magnetic Force

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Solution Overview

Problem

Traditional surgical methods, such as laparotomy, require large incisions and result in significant blood loss and scarring, hindering patient recovery and daily life, while minimally invasive surgeries face challenges in effectively and safely pulling organs or tissues within the body.

Innovation Solution

A surgical traction apparatus featuring a magnetic body with adjustable magnetic strength, allowing for remote manipulation of organs or tissues using a moving body portion with a hook and an operating portion that adjusts magnetic force externally, enabling precise control without damaging tissues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional laparotomy is used to access organs inside the body, then surgical access is improved, but blood loss and scarring increase

Engineering Contradiction:
Improvesurgical accessVSAvoidblood loss and scarring
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional mechanical surgical instruments that require large incisions with a magnetic field-based system. The magnetic body inside the body interacts with the magnet portion outside the body through magnetic attraction, eliminating the need for large incisions and mechanical manipulation through open wounds.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic field acts as an intermediary between the operating portion outside the body and the moving body portion inside the body. This intermediary allows force transmission and organ manipulation without direct mechanical contact or large incisions, thus avoiding blood loss and scarring while maintaining surgical access.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If minimally invasive surgery is used to reduce incisions, then blood loss and scarring are reduced, but the ability to effectively pull organs or tissues deteriorates

Engineering Contradiction:
Improveblood loss and scarringVSAvoidtraction capability
Core Design Contradiction:
Object-affected harmful factorsVSForce

Solution Approach 1:

The patent changes the parameter of magnetic strength to control traction capability. The magnet portion can adjust its magnetic strength to provide appropriate pulling force on organs or tissues, achieving effective traction while maintaining minimally invasive benefits. The adjustable magnetic strength allows optimization of force application without increasing incision size.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent substitutes mechanical traction instruments that require large incisions with a magnetic field-based traction system. The magnetic attraction between the magnet portion and magnetic body provides the necessary pulling force on organs or tissues without mechanical contact through large wounds.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If fixed magnetic strength is used in the magnet portion, then device complexity is reduced, but the ability to adjust traction to tissue type and thickness deteriorates

Engineering Contradiction:
Improvemagnet portion structureVSAvoidtraction adjustment capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic adjustability to the magnet portion, allowing the magnetic strength to be changed based on tissue type and thickness. This dynamic capability enables the system to adapt to different surgical conditions and tissue characteristics, improving versatility without significantly complicating the overall device structure.

Inventive Principle:
Principle #15Dynamics

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 safe and precise traction of organs or tissues within the body by adjusting magnetic strength according to tissue type and thickness, reducing the risk of damage and facilitating minimally invasive procedures with improved surgical access and reduced recovery time.

Implementation Method 1

a magnet portion configured to be mounted on the operating portion and be with adjustable magnetic strength

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

a first magnet layer including a permanent magnet having a polarity and a second magnet layer comprising a permanent magnet having a polarity

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 3

an electromagnet portion including an electromagnet configured to be with changeable magnetic strength according to a level of a current

Methodology Applied
Scientific EffectElectromagnet: Electromagnet

Data Source

PatentUS10058316B2Surgical traction apparatus
Publication Date: 2018.08.28 AJOU UNIV IND ACADEMIC COOP FOUND
  • US10058316B2 patent drawing
  • US10058316B2 patent drawing
  • US10058316B2 patent drawing

AI summary

A surgical traction apparatus according to the present invention includes a moving body portion including a magnetic body and configured to be inserted into a body, a hook portion configured to be connected to the moving body portion inside the body and pull an object inside the body, an operating portion configured to operate the moving body portion to move inside the body while moving outside the body, and a magnet portion configured to be mounted on the operating portion and be with adjustable magnetic strength.