Elastic Surgical Traction Device with Segmented Fixing Part

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Solution Overview

Problem

Conventional surgical traction devices are inconvenient for inserting a laser scalpel into an incision site due to interference from the ring and surgical tool, and difficulty in positioning the scalpel correctly.

Innovation Solution

A surgical traction device featuring a ring-shaped fixing part with a through hole and a flexible expansion part that includes traction blades to expand the incision site, allowing easy insertion and adjustment of surgical tools, with the expansion part made of silicon for elasticity and secure attachment to the fixing part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a ring structure is used to expand the incision site, then the incision site can be maintained in an expanded state, but the ring structure interferes with the insertion and positioning of surgical tools like laser scalpels

Engineering Contradiction:
Improveincision site expansion maintenanceVSAvoidsurgical tool insertion and positioning
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The device is divided into two separate functional components: a D-shaped expansion part that maintains the incision site open, and a separate blade fixing device that holds the surgical tool. This segmentation eliminates the interference problem by removing the ring structure from the tool holder, while the D-shaped expansion part maintains incision site stability through its geometry and elasticity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The problematic ring structure is extracted and replaced with a D-shaped expansion part that performs the same function of expanding the incision site without creating interference with surgical tools. The blade fixing device is also separated as an independent component rather than being integrated into a ring structure.

Inventive Principle:
Principle #2Taking out (Extraction)

2Strength

If a rigid structure is used for the expansion part, then the incision site can be firmly held open, but the device becomes difficult to insert and adjust during surgery

Engineering Contradiction:
Improveincision site holding forceVSAvoiddevice insertion and adjustment flexibility
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The expansion part is made from an elastic material that can be compressed for easy insertion through the incision site, then expands to hold the opening firmly. The D-shaped cross-section provides structural stability while the elastic material allows flexible insertion and adjustment during surgery.

Inventive Principle:
Principle #30Flexible shells and thin films

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

Facilitates easy expansion and maintenance of the incision site for surgical access, allowing for precise tool placement and easy removal of the device during surgery.

Implementation Method 1

an expansion part having elasticity is formed into a cylindrical shape and held on a fixing part at the upper portion thereof, thereby maintaining the incision site in the expanded state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10307151B2Retractor for surgical operation
Publication Date: 2019.06.04 WECAN MEDICARE CO LTD
  • US10307151B2 patent drawing
  • US10307151B2 patent drawing
  • US10307151B2 patent drawing

AI summary

The present invention relates to a surgical traction device and, more specifically, to a surgical traction device, in which a surgical incision site is expanded to allow a surgical tool to be easily inserted in a state, in which the epidermis is incised for surgical operation, and an expansion part having elasticity is formed into a cylindrical shape and held on a fixing part at the upper portion thereof so as to maintain the incision site in an expanded state.According to the present invention, the expansion part made of a material with elasticity can be inserted in the incision site so as to form a space for surgical operation and the expansion part can be easily attached to or separated from the fixing part so that it is easy to change the position of the traction device or remove the traction device during surgery.