Detachable Endoscopic Clip Segmentation

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Solution Overview

Problem

Existing endoscopic clips for anastomosis have a limited clipping scope and weak clipping force, making them ineffective for treating gastrointestinal bleeding and perforation, and are difficult to remove without causing further tissue damage.

Innovation Solution

A detachable endoscopic clip design featuring engagement members and resilient members connected via detachable conjugates, allowing for disassembly and easy removal, with metal or polymer construction for strong clipping force and corrosion resistance, and adjustable conjugate arrangements for improved operational ease.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If an endoscopic clip is designed as an integral structure, then it provides structural strength and stability, but it becomes difficult to remove and may cause damage to surrounding tissues

Engineering Contradiction:

Improvestructural strengthVSAvoidremoval ease

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The endoscopic clip is divided into multiple independent engagement members (first engagement member and second engagement member) that can be detached from each other. Each engagement member can be removed separately through its own pulling portion, allowing the clip to maintain structural integrity during use while enabling easy removal by detaching individual members without damaging surrounding tissues.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If a hemoclip is designed with small size, then it is easy to manipulate, but it provides weak clipping force and limited clipping scope

Engineering Contradiction:

Improvemanipulation easeVSAvoidclipping force

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

The engagement members are designed with resilient members (springs) that provide dynamic elastic force. The resilient members can be compressed during insertion and then expand to provide continuous strong clipping force on the tissue. This dynamic mechanism allows the clip to maintain strong clipping force while remaining small and manipulable through the endoscope.

Inventive Principle:

Principle #15Dynamics

3Strength

If an endoscopic clip uses metal materials, then it provides strong clipping force and corrosion resistance, but it increases the risk of tissue damage during removal

Engineering Contradiction:

Improveclipping forceVSAvoidtissue damage risk

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The clip is segmented into multiple engagement members that can be detached independently. Each metal engagement member can be removed separately through its pulling portion, distributing the removal force and reducing the risk of tissue damage compared to removing a single large integral metal structure. The segmentation allows controlled extraction of each component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The resilient members act as intermediaries between the metal engagement members and the tissue. They provide elastic compliance that cushions the interaction between the rigid metal components and the soft tissue, reducing the risk of damage during both application and removal while maintaining the strength benefits of metal construction.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Duration of action of moving object

If an endoscopic clip is designed to be non-detachable, then it provides continuous clipping force, but it requires expensive electric arc cutting apparatus for removal

Engineering Contradiction:

Improveclipping durationVSAvoidremoval apparatus complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The engagement members are pre-equipped with pulling portions that enable detachment at any time during the clipping duration. This preliminary provision of removal capability eliminates the need for expensive electric arc cutting apparatus. The clip can maintain continuous clipping force through the resilient members while allowing simple manual removal by pulling the pulling portions when needed.

Inventive Principle:

Principle #10Preliminary action

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 detachable design facilitates easy removal with reduced tissue damage, provides a strong and stable clipping force, and extends the clip's service life, enabling effective treatment of gastrointestinal issues while simplifying the removal process.

Implementation Method 1

resilient members connected to each other in a detachable manner... the resilient members are made of metal and can provide the endoscopic clip with a continuously stable and strong clipping force

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3808285B1Detachable endoscopic anastomosis clamp

Publication Date: 2023.07.05 NINGBO SHENGJIEKANG BIOTECH

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AI summary

Provided is a detachable endoscopic clamp, related to medical apparatuses, which aims to solve the problem that the existing endoscopic clips are hard to remove and can only provide a weak clipping force. The detachable endoscopic clip includes at least two engagement members and at least two resilient members. Ends of the engagement members and ends of the resilient members from conjugates, and at least one of the conjugates is detachable. The endoscopic clip of the present disclosure can be easily detached and removed after a surgery.