Sealing envelope for medical containers

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Solution Overview

Problem

Existing medical container packaging is prone to perforation during transportation, is bulky, and requires additional manual steps to open due to wrinkling and folding of the header bag, limiting stacking capacity and increasing the risk of contamination.

Innovation Solution

A sealing envelope comprising a lower and upper sealing part, bonded tightly to enclose the tub and sealing cover, eliminating the need for a header bag, which is compact, resistant to perforation, and eliminates the need for manual tensioning of edges during opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a header bag is used to protect the sealing cover, then protection against contamination is improved, but the packaging becomes bulky and prone to perforation

Engineering Contradiction:

Improveprotection against contaminationVSAvoidpackaging volume

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent removes the header bag from the packaging system and replaces it with a bonding surface integrated into the sealing envelope. This extraction eliminates the bulky plastic bag while maintaining protection through the bonded sealing parts, directly resolving the contradiction between protection and volume.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the protective function with the sealing function by integrating the bonding surface into the sealing envelope structure. The lower and upper sealing parts work together as a unified system, eliminating the need for a separate header bag and reducing overall packaging volume while maintaining reliability.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If a header bag is used to protect the sealing cover, then protection against contamination is improved, but the risk of perforation during transportation increases

Engineering Contradiction:

Improveprotection against contaminationVSAvoidperforation risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the header bag from the system and replaces it with a bonded sealing envelope structure. This eliminates the weak point of the header bag that is prone to perforation during transportation, while maintaining contamination protection through the integrated sealing parts.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses composite construction with a lower sealing part and an upper sealing part bonded together. This composite structure provides enhanced durability and resistance to perforation compared to a single header bag, while maintaining the protective function against contamination.

Inventive Principle:

Principle #40Composite materials

3Reliability

If a header bag is used, then protection is provided, but additional manual steps are required to open due to wrinkling and folding

Engineering Contradiction:

Improveprotection against contaminationVSAvoidopening process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent removes the header bag that causes wrinkling and folding issues during opening. The bonding surface integrated into the sealing envelope eliminates these problems, allowing for cleaner, easier opening without manual tensioning steps.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The bonding surface is designed to maintain a flat, tensioned state during storage and transportation, preventing the wrinkling and folding that occurs with header bags. This preliminary preparation of the sealing envelope structure eliminates the need for manual tensioning during the opening process.

Inventive Principle:

Principle #10Preliminary action

4Reliability

If a header bag is used, then protection is provided, but the number of packaging that can be stacked in a single box is limited

Engineering Contradiction:

Improveprotection against contaminationVSAvoidstacking capacity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent extracts the bulky header bag from the packaging system and replaces it with a compact bonding surface. This volume reduction allows more packaging units to be stacked in a single box, increasing productivity and shipping efficiency while maintaining protection through the integrated sealing envelope.

Inventive Principle:

Principle #2Taking out (Extraction)

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 solution provides a packaging system that is resistant to perforation, saves space, and simplifies the opening process by ensuring rigid edges, thus enhancing safety and efficiency in transportation and handling.

Implementation Method 1

a bonding surface that extends outwards from the frame... an upper sealing part sealed on said bonding surface

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS11596730B2Packaging for medical containers

Publication Date: 2023.03.07 BECTON DICKINSON FRANCE SAS

AI summary

Packaging for medical containers, including a tub having a peripheral wall, a sealing cover sealable on an opening of the tub and a sealing envelope able to protect the sealing cover. The sealing envelope includes: a lower sealing part, having a frame able to be sealed to the peripheral wall of the tub, and a bonding surface that extends outwards from the frame, and an upper sealing part sealed on the bonding surface to enclose the opening of the tub and the sealing cover.