Packaging Sheet Edge Wiring for Accurate Bag Opening Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing subdivided bags for storing multiple medicines are difficult to detect the opening position accurately due to their simple design, which allows for various shapes and sizes, making it challenging to specify and detect the opening.
Innovation Solution
A packaging material is designed with a sheet that includes pre-storing portions and a wiring pattern disposed along the peripheral edges of these portions, allowing for accurate detection of the opening by breaking the circuit when the bag is torn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple design is used for subdivided bags to store various kinds of medicines with various shapes and numbers, then the bag can accommodate diverse medicines, but the opening position becomes difficult to specify and detect
Solution Approach 1:
The wiring pattern is segmented to follow the peripheral edges of each storing portion individually. This segmentation allows the circuit to be broken at specific locations corresponding to each storing portion's opening, enabling accurate detection even when the bag design is simple and versatile.
Solution Approach 2:
The wiring pattern is pre-configured along the peripheral edges of storing portions before the bag is used. This preliminary arrangement ensures that when opening occurs, the circuit breakage can be immediately detected, solving the problem of detecting openings in simple bag designs.
2Measurement precision
If a circuit line crosses each medicine storing portion as in PTP packaging, then opening can be detected with high accuracy, but the design becomes complex and cannot accommodate various shapes and sizes
Solution Approach 1:
The wiring pattern configuration along peripheral edges serves multiple functions: it detects opening of individual storing portions, accommodates various shapes and sizes of storing portions, and maintains simplicity in design. This universal approach replaces the need for complex circuit lines that cross each storing portion.
Solution Approach 2:
The wiring pattern is positioned specifically along the peripheral edges of each storing portion, providing localized detection capability. This local quality approach allows accurate opening detection without requiring complex circuit lines to cross through each portion, thus reducing overall device complexity.
3Measurement precision
If the wiring pattern is disposed along peripheral edges of storing portions, then opening detection is enabled in simple bag designs, but the wiring pattern may be damaged during bag formation
Solution Approach 1:
The wiring pattern is disposed along the peripheral edges of storing portions in advance, before the bag formation process. This preliminary positioning protects the wiring from damage during subsequent bag formation operations, as the wiring follows the contour rather than crossing through the storing portions where mechanical stress occurs.
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 packaging material enables the formation of subdivided bags where the opening can be reliably detected, improving medication adherence by ensuring accurate detection of opening and reducing the risk of missed doses.
Implementation Method 1
The opening of the packaging material can be detected based on a change in an electrical signal caused by the breakage of the circuit pattern
Data Source
AI summary
A sheet including a pre-storing portion to be a storing portion and a wiring pattern disposed on the sheet are included. The wiring pattern is disposed such that ends of the wiring pattern are disposed on one side along one direction and the wiring pattern is disposed along peripheral edges of the pre-storing portion so as to be along peripheral edges of the storing portion on three sides other than the one side when the storing portion is formed. The sheet is transparent or semitransparent and includes a pre-sealing portion around the pre-storing portion. The wiring pattern is disposed at peripheral edges of the pre-storing portion on the three sides and disposed on the pre-sealing portion.