Single Barrier Folder Suture Package with Rounded Edges and Segmented Locking

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Solution Overview

Problem

Existing single barrier folders (SBFs) for packaging sutures and needles are prone to rupture due to sharp edges, fail to securely hold various types of needles, and have inadequate locking mechanisms, leading to potential contamination during transit.

Innovation Solution

A modified SBF design featuring rounded edges, a needle parking mechanism with a notch and cutout, and a robust locking mechanism using a curved slit and protrusion to securely hold sutures and needles, minimizing movement and preventing accidental opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If sharp edges are provided on flaps for easy folding, then ease of manufacture is improved, but the folder is prone to rupture when needles contact the edges

Engineering Contradiction:
Improveease of foldingVSAvoidresistance to rupture
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent applies curvature by replacing sharp edges with rounded edges on all flaps of the sterile barrier package. This design modification eliminates the harmful sharp edges that could puncture needles while maintaining the foldability of the package structure, thus resolving the contradiction between ease of manufacture and reliability.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Device complexity

If a simple locking mechanism with linear grooves and slots is used, then device complexity is reduced, but the folder may open during transit exposing contents to contamination

Engineering Contradiction:
Improvesimplicity of locking mechanismVSAvoidsecurity during transit
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The locking mechanism is segmented into multiple independent components: a first locking element with a locking protrusion on the first flap, a second locking element with a locking groove on the second flap, and additional adhesive strips. This segmentation provides multiple locking points that work together to secure the package during transit while maintaining relative simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism is designed to be engaged in advance during the folding process. The first and second locking elements are positioned and engaged before the package is sealed, ensuring that the locking action occurs preliminarily to prevent opening during subsequent transit, rather than requiring complex continuous monitoring or adjustment mechanisms.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If a common SBF design is used for different needle types, then adaptability is improved, but the package is not suitable to hold every type of needle securely

Engineering Contradiction:
Improvecompatibility with different needle typesVSAvoidsecure holding of needle
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The package design incorporates universal features including rounded edges on all flaps that accommodate various needle shapes without causing rupture, and a multi-component locking mechanism with protrusions and grooves that can secure different needle types. The combination of these universal design elements allows the same package structure to reliably hold curved needles, straight needles, and other variations.

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

Data Source

PatentUS20250160822A1Single barrier folder suture package
Publication Date: 2025.05.22 ETHICON INC
  • US20250160822A1 patent drawing
  • US20250160822A1 patent drawing
  • US20250160822A1 patent drawing

AI summary

Various embodiments of the present invention are directed towards a single barrier folder to carry a suture and a needle therein. The single barrier folder comprises a plurality of openings configured to allow placement of a suture and form a suture winding and a first flap comprising a needle parking mechanism. The needle parking mechanism comprises a first portion, a notch, and a cutout. The cutout and the notch are configured to hold the needle and the first portion is foldable and configured to fold in locking engagement with the notch. The single barrier folder also comprises a second flap and a third flap on opposite sides of the plurality of openings and a slit configured to receive an end portion of a fourth flap to lock the single barrier folder. The present invention also provides method of placing and folding the flaps to pack needle and suture inside the single barrier folder.