Segmented Endoscopic Suction Kit for Gastrointestinal Wound Therapy

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Solution Overview

Problem

Current endoluminal negative pressure therapy for gastrointestinal tract wounds faces challenges in simplifying handling, shortening procedure duration, and enhancing safety due to complex endoscopic component management and suboptimal sizing of absorbent bodies for precise wound site adaptation.

Innovation Solution

A medical kit comprising multiple absorbent bodies with varying diameters and lengths, each with a permanently attached suction hose, allowing for flexible selection and precise adaptation to wound sites through endoscopic measurement, along with a connector system for easy translocation and a grasping loop for precise placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single-size absorbent body is used, then the device complexity is reduced, but the manufacturing precision and adaptability to different wound sites deteriorate

Engineering Contradiction:
Improvedevice complexityVSAvoidsizing precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The kit divides the absorbent bodies into multiple size segments (different diameters and lengths) to match various wound cavity dimensions. This segmentation allows precise adaptation to different wound sites without requiring complex adjustable mechanisms, thus resolving the contradiction between device complexity and sizing precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the dimensional parameters (diameter and length) of the absorbent bodies to create a range of sizes. This parameter variation enables selection of the optimal size for each specific wound site, improving manufacturing precision and adaptability while maintaining simple device design.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple absorbent bodies with varying sizes are provided, then the adaptability to different wound sites is improved, but the device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The kit segments the absorbent bodies into standardized size categories, making it easy to select the appropriate size for different wound sites. This segmentation approach improves adaptability while keeping the device structure simple and manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The kit provides a universal solution by including multiple absorbent bodies that can all be used with the same application system. Each absorbent body serves the same function but in different size requirements, enhancing versatility without increasing the complexity of the core device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If the suction hose is not permanently attached, then the ease of manufacture is improved, but the reliability of the connection deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidconnection reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The suction hose is permanently merged with the absorbent body through adhesive bonding, creating a single integrated component. This merging ensures reliable connection during use while simplifying the manufacturing process by eliminating the need for separate attachment mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

4Measurement precision

If the endoscopic procedure requires complex component management, then the measurement precision can be improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvemeasurement precisionVSAvoidease of operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The appropriate absorbent body size is determined through preliminary endoscopic measurement of the wound cavity before the procedure. This preliminary action allows selection of the correct size in advance, improving measurement precision while simplifying the actual operation by eliminating complex intra-procedural adjustments.

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 kit simplifies the endoscopic procedure by enabling quick and flexible selection of suitable absorbent bodies, improving precision and safety through optimized sizing and handling, thereby enhancing the effectiveness of negative pressure therapy for gastrointestinal tract wounds.

Implementation Method 1

a negative pressure is created in the wound area using a drainage tube and a vacuum pump

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 2

removing wound exudate, especially in the initial phase of wound treatment

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 3

By using the wound filling material, the pressure is evenly distributed across the wound

Methodology Applied
Scientific EffectPressure distribution: Porosity

Data Source

PatentEP3281615B1Medical kit for use in negative pressure therapy of endoluminal wound sites in the gastrointestinal tract
Publication Date: 2021.11.24 PAUL HARTMANN AG
  • EP3281615B1 patent drawingFigure 1a~1b
  • EP3281615B1 patent drawingFigure 2
  • EP3281615B1 patent drawingFigure 3a~3b

AI summary

The invention proposes a medical kit for use in negative pressure wound therapy of endoluminal wounds in the gastrointestinal tract. The kit comprises at least two suction bodies, each of which includes a sponge body and a suction tube permanently bonded to the sponge body by means of an adhesive. The suction tube has at least one opening for negative pressure communication. Each of the sponge bodies in the kit differs from each other in at least one of the dimensions selected from diameter d and/or length l.