Infusion Carrier Segmented Adhesive Skin Stress

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional carrier systems for infusion devices are uncomfortable due to skin stress and reduced perspiration, especially in areas with skin folds, and are difficult to attach and detach without causing irritation.

Innovation Solution

A carrier system with a flexible frame structure and strategically placed pressure-sensitive adhesive, allowing for rotation and reduced stress on the skin, along with guiding means for secure attachment and easy removal of the infusion pump, enhancing wearing comfort and handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional carrier systems are attached directly to the skin in the stomach area, then the infusion system can be securely held in place, but the skin stress and reduced perspiration cause discomfort and skin irritation

Engineering Contradiction:

Improveattachment securityVSAvoidskin stress and irritation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The adhesive carrier is divided into multiple separate adhesive elements distributed across the carrier surface, rather than using one large continuous adhesive. This segmentation allows the skin to breathe through the gaps between adhesive elements while maintaining secure attachment points, thereby reducing skin stress and irritation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adhesive elements are strategically positioned at specific locations on the carrier where attachment is needed, rather than covering the entire carrier surface. This localized adhesive placement provides sufficient hold for the infusion pump while leaving other areas open for skin breathability and reducing overall skin stress.

Inventive Principle:

Principle #3Local quality

2Reliability

If large pressure sensitive adhesives are used in the vertical axis to secure the device, then the device can be firmly attached to the skin, but the adhesives inhibit skin movement and introduce stress

Engineering Contradiction:

Improvedevice attachment firmnessVSAvoidskin movement freedom

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The adhesive is segmented into multiple smaller elements rather than one large continuous adhesive in the vertical axis. This allows the skin to move and breathe between the adhesive elements while maintaining firm attachment at the adhesive points, resolving the contradiction between attachment firmness and skin movement freedom.

Inventive Principle:

Principle #1Segmentation

3Volume of moving object

If the infusion system is made smaller to improve discretion and wearability, then the device becomes more concealable, but the attachment becomes more difficult and uncomfortable in skin folds

Engineering Contradiction:

Improveinfusion system sizeVSAvoidattachment comfort and accessibility

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The carrier is designed with a flexible structure that can conform to the contours of the skin, including skin folds. This flexibility allows the small infusion system to be comfortably attached to various body shapes and positions, maintaining wearability while improving attachment comfort in skin folds.

Inventive Principle:

Principle #30Flexible shells and thin films

4Reliability

If conventional adhesive carriers are used, then the device can be attached to the skin, but the adhesives are not well accessible for application and removal

Engineering Contradiction:

Improvecarrier attachment capabilityVSAvoidadhesive accessibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The adhesive is divided into multiple separate elements that are distributed across the carrier. This segmentation makes the adhesives more accessible for application and removal, as users can easily access and manipulate individual adhesive elements rather than dealing with a large continuous adhesive sheet.

Inventive Principle:

Principle #1Segmentation

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 system provides improved wearing comfort by minimizing skin stress and irritation, allowing for extended attachment without detachment issues and facilitating easy operation and removal of the infusion device.

Implementation Method 1

The carrier comprises an adhesive layer for attaching the carrier to the skin of a user

Methodology Applied

Scientific EffectPressure-sensitive adhesive: Adhesive

Data Source

PatentEP2195048B1Carrier for an infusion system

Publication Date: 2018.12.12 F HOFFMANN LA ROCHE & CO AG

Figure 1A
Figure 1~4
Figure 3~5

AI summary

The present invention generally relates to systems for attaching a medical infusion pump device to human skin. Specifically it relates to a new carrier system for an infusion system with improved wearing comfort and handling. For this, the carrier consists of a frame (310) which includes an adhesion means (350) for attaching the carrier to the skin of a patient, and wherein the carrier frame includes a central point (330) to attach the adhesive means to the carrier frame.