Triangular Frustum Endoscopic Channel for Abdominal Stability

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Solution Overview

Problem

Current minimally invasive celiac endoscopic channels lack stability within the abdominal cavity due to their columnar shape, leading to potential tissue damage and instability during operations, especially when multiple instruments need to be inserted through a single cutout.

Innovation Solution

A hollow celiac minimally invasive surgery endoscopic channel featuring an extracorporeal combined platform and an intracorporeal expandable shell body in a triangular frustum shape with horizontal partition stiffeners and an inflation structure, forming a stable triangular air bag that resists lateral pressure and allows for multiple instrument insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a columnar endoscopic channel is used to expand the small cutout, then the cutout can be opened for instrument insertion, but the channel lacks stability in the abdominal cavity due to the close and orderly arrangement of visceral organs

Engineering Contradiction:

Improveinstrument insertion capabilityVSAvoidchannel stability in abdominal cavity

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The channel is divided into multiple segments (first channel body, second channel body, third channel body) that can be assembled together. Each segment has specific structural features (expansion structures, connection structures) that enable stable positioning at different locations within the abdominal cavity, preventing random swaying while maintaining instrument insertion capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The channel transitions from a simple columnar shape to a multi-dimensional structure with expansion sections that radiate outward. This dimensional change allows the channel to engage with visceral organs in multiple directions, creating stable anchoring points that prevent random movement while maintaining the central lumen for instrument passage

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If the small cutout is opened to insert multiple instruments, then multiple operations can be performed, but visceral organs are pressed towards the cavity opening causing accidental injury

Engineering Contradiction:

Improvesimultaneous operation capabilityVSAvoidtissue injury from organ displacement

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The channel includes expansion structures that are deployed first to establish a stable framework within the abdominal cavity. These expansion sections create defined spatial boundaries that contain and stabilize visceral organs before multiple instruments are inserted, preventing organ displacement and injury during subsequent simultaneous operations

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The channel acts as an intermediary structure between the external instruments and the internal visceral organs. By providing a stable, structured presence in the abdominal cavity, it mediates the interaction between instruments and organs, preventing direct harmful contact and displacement while allowing instruments to perform their functions

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the channel needs to be displaced during operation, then operational flexibility is improved, but the channel sways randomly making it unusable

Engineering Contradiction:

Improvechannel displacement capabilityVSAvoidchannel position stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The channel incorporates both stable and dynamic elements. The expansion structures provide stable anchoring points that resist random swaying, while the connection structures between segments allow for controlled, deliberate displacement when needed. This dynamic design enables the channel to maintain stability during normal operation but can be repositioned intentionally when operational requirements demand

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

The design provides stability and resistance to external pressure, enabling secure positioning and simultaneous use of multiple instruments within the abdominal cavity, enhancing the safety and efficiency of minimally invasive surgical procedures.

Implementation Method 1

an inflation structure, forming a stable triangular air bag

Methodology Applied

Scientific EffectInflation: Pressurisation

Data Source

PatentUS10143492B2Hollow celiac minimally invasive surgery endoscopic channel

Publication Date: 2018.12.04 SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE

AI summary

A hollow celiac minimally invasive surgery endoscopic channel may include an extracorporeal combined platform and an intracorporeal expandable shell body. The combined platform and the intracorporeal expandable shell body may be engagingly combined into a detachable structure. The intracorporeal expandable shell body may be in a triangular frustum shape. A portion of the intracorporeal expandable shell body that is located below the triangular frustum surface may be a two-layer structure body. Partition stiffeners that are distributed horizontally may be provided between an inner and outer layers at each face of the shell body. An inflation port may be disposed at the inner layer.