Blister Pack De-blistering Machine with Rotatable Cutter

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Solution Overview

Problem

Existing machines for de-blistering pharmaceutical products in hospitals are inefficient, prone to damaging or losing units during transfer, and lack versatility, especially when handling different blister pack configurations.

Innovation Solution

A machine with a mechanical die-cutting system and visual identification using cameras, capable of cutting and processing various blister pack configurations, ensuring secure and accurate transfer of medication doses to a delivery zone for packaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a de-blistering machine is used to separate medication units from blister packs, then the de-blistering operation becomes automated and efficient, but the units of medicine may be damaged, lost or stolen during transfer to the patient

Engineering Contradiction:
Improvede-blistering operation efficiencyVSAvoidmedicine unit security during transfer
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts the medicine unit directly from the blister pack at the cutting station and immediately places it into a secure dispensing container that is integrated into the machine. This extraction and immediate containment prevents the unit from being exposed during transfer, thereby maintaining security while achieving automated de-blistering efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements a nested structure where the blister pack is inserted into a holder that is part of the cutting station, and the cut unit is immediately nested into a secure dispensing container. This nested arrangement ensures continuous containment of the medicine unit throughout the de-blistering process, preventing loss or theft while maintaining operational efficiency

Inventive Principle:
Principle #7Nested doll (Nesting)

2Extent of automation

If a circular arrangement of blister pack storage stations is used, then automatic cutting of pills can be achieved, but the machine takes up a great deal of space

Engineering Contradiction:
Improveautomatic pill cutting capabilityVSAvoidmachine footprint
Core Design Contradiction:
Extent of automationVSArea of stationary object

Solution Approach 1:

The patent employs a single cutting station that can process multiple types of blister packs by rotating the cutter to different positions. This universal cutting station eliminates the need for multiple dedicated storage stations arranged in a circle, achieving automatic cutting capability while significantly reducing the machine's footprint

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

Solution Approach 2:

The patent introduces a rotatable cutter that can dynamically adjust its position to accommodate different blister pack configurations. This dynamic adjustment allows one cutting station to perform the function of multiple fixed stations, reducing space requirements while maintaining automation

Inventive Principle:
Principle #15Dynamics

3Device complexity

If a fixed cutter configuration is used, then the cutting mechanism is simple, but the machine cannot process different blister pack configurations

Engineering Contradiction:
Improvecutter mechanism simplicityVSAvoidblister pack configuration handling
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements a rotatable cutter that can be easily repositioned to different angles and orientations. This dynamic feature allows the same simple cutting mechanism to adapt to various blister pack configurations without requiring complex interchangeable tooling, thus maintaining simplicity while achieving versatility

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the positional parameters of the cutter (rotation angle, height, orientation) to accommodate different blister pack types. By adjusting these parameters rather than changing the cutter itself, the system maintains mechanical simplicity while achieving adaptability to various configurations

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2025601B1Machine for handling blister packs
Publication Date: 2011.09.21 GRIFOLS
  • EP2025601B1 patent drawingFigure 1
  • EP2025601B1 patent drawingFigure 2
  • EP2025601B1 patent drawingFigure 3

AI summary

Machine for handling blister packs, characterised in that it comprises a first blister pack storage station (1000) provided with an opening for feeding blister packs to a second blister pack transport station (2000) for transporting the blister packs to a third station (3000) for cutting the blister packs (100), and an opening (41) for transferring the cut blister packs to a delivery or packing station (4000).