Compounding Scale Platen With Imaging for Sterile Hood Safety

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Solution Overview

Problem

The preparation of sterile compounded medications, such as chemotherapy drugs, requires a scale system with enhanced safety features and minimal footprint within a flow hood, while also ensuring user safety from toxic components, as existing systems lack efficient usability and safety measures.

Innovation Solution

A scale system with a platen and image capture device, integrated barcode scanner, and visual identifiers, which includes a disposable and absorbent surface for containment and visual indication of cytotoxic material exposure, ensuring compliance with sterility and safety protocols through image documentation and user interface guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a scale is placed within a flow hood for sterile compounding, then sterility and safety are improved, but the available space is reduced due to the scale's footprint

Engineering Contradiction:
ImprovesterilityVSAvoidfootprint
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The image capture device is integrated within the housing of the scale system, with the barcode scanner and other components nested within the same housing structure. This nested arrangement allows multiple functional components to occupy overlapping spatial volumes, significantly reducing the overall footprint of the scale system while maintaining all necessary functions for sterile compounding

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent combines multiple functions into a single integrated scale system: weighing function, image capture function, barcode scanning function, and visual identification function are all merged into one compact unit. This consolidation eliminates the need for separate devices, reducing the total space required in the flow hood while ensuring sterility through the integrated design

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If protective gear is worn during chemotherapy drug preparation, then user safety is improved, but ease of operation deteriorates due to bulky and cumbersome equipment

Engineering Contradiction:
Improveuser safetyVSAvoidusability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system provides automated image capture and documentation without requiring manual intervention. The image capture device automatically captures images of the compounding process, and the system automatically tracks compliance parameters, reducing the operational burden on technicians wearing protective gear while maintaining safety protocols

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates real-time feedback through the user display that shows compliance status, captured images, and operational guidance. This feedback mechanism helps technicians operating with protective gear by providing clear visual information about system status and compliance requirements, improving ease of operation while maintaining safety

Inventive Principle:
Principle #23Feedback

3Reliability

If a platen with disposable and absorbent surface is used, then sterility and contamination prevention are improved, but device complexity increases

Engineering Contradiction:
ImprovesterilityVSAvoidplaten structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The platen is designed as a separate, removable component that can be easily detached from the scale base. This segmentation allows the platen to be disposed of after single use, eliminating the need to dispose of or clean the entire scale system. The modular design maintains sterility while managing complexity through separable components

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The platen is designed as a disposable component with an absorbent surface that can be discarded after a single use. This approach ensures sterility by eliminating cross-contamination risks between uses, while the relatively simple disposable nature of the platen (compared to sterilizing complex equipment) actually reduces overall system complexity management

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 enhances user safety and sterility by preventing compounding until compliance is confirmed, providing visual and photographic documentation, and ensuring accurate drug preparation within specified tolerances, thus reducing exposure risks and improving operational efficiency in a compact and safe environment.

Implementation Method 1

at least a portion of the coating layer changes color in response to a cytotoxic material contacting the coating layer

Methodology Applied
Scientific EffectColor change response: Thermochromism

Implementation Method 2

an absorbent material for absorbing any cytotoxic material on the platen

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentEP3191808B1Enhanced platen for pharmaceutical compounding
Publication Date: 2021.03.10 BECTON DICKINSON & CO
  • EP3191808B1 patent drawingFigure 1
  • EP3191808B1 patent drawingFigure 2
  • EP3191808B1 patent drawingFigure 3

AI summary

A system for preparing and administering a prescribed fluidic pharmaceutical compound, such as a chemotherapy compound, includes a scale having a platen. The scale is in communication with a user display for displaying an output of the scale. An image capture device having a field of view for capturing at least one image of an object placed on the platen is provided in communication with the user display for displaying the captured image. The platen may include a visual identifier for identifying a portion of the field of view of the image capture device. The platen may also include a tackifier or absorbent material. The platen may be formed of a light-transmissible material.