Pharmaceutical Dispensing Sensors for Error Detection

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Solution Overview

Problem

Pharmaceutical dispensing machines lack effective sensors to accurately monitor and alert for issues such as pharmaceutical detection, container status, and process deviations, leading to potential errors in dispensing and waste due to technical issues.

Innovation Solution

Incorporating a variety of sensors like movement, weight, optical, vibration, sound, and vacuum sensors to monitor the pharmaceutical dispensing process, detect deviations from expected values, and alert when issues arise, ensuring correct dispensing and reducing unnecessary waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple types of sensors are incorporated to monitor the pharmaceutical dispensing process, then the reliability and detection accuracy are improved, but the device complexity increases

Engineering Contradiction:
Improvedispensing reliabilityVSAvoidsensor system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sensor system is segmented into multiple independent sensor types (movement sensor, weight sensor, optical sensor, vibration sensor, sound sensor, vacuum sensor), each monitoring specific aspects of the dispensing process. This segmentation allows the system to achieve comprehensive monitoring and high reliability without requiring a single complex sensor system, as each sensor can be independently optimized and maintained.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a multi-functional sensor system where different sensors serve multiple monitoring purposes. For example, the movement sensor monitors both pharmaceutical movement and container position, while the vibration sensor detects both mechanical vibrations and dropped items. This multi-functionality approach improves reliability without proportionally increasing complexity, as one sensor type can perform multiple detection tasks.

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

2Measurement precision

If real-time monitoring of pharmaceutical movement and container status is implemented, then detection precision is improved, but the device complexity increases

Engineering Contradiction:
Improvedetection precisionVSAvoidmonitoring system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system implements real-time feedback monitoring where sensors continuously detect pharmaceutical movement, container status, and process parameters. The detected information is immediately fed back to the control system, which compares actual values against expected values and triggers alerts or corrections when deviations are detected. This feedback mechanism enables high detection precision through continuous real-time monitoring while maintaining manageable system complexity through automated control loops.

Inventive Principle:
Principle #23Feedback

3Reliability

If comprehensive sensor monitoring is implemented to detect all possible errors, then the reliability is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvedispensing accuracyVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies local quality by placing specific sensor types at critical locations where they provide maximum detection value. For example, movement sensors are positioned at transfer points where pharmaceuticals move between containers, weight sensors are placed at critical weighing points, and vibration sensors are installed at base levels to detect dropped items. This targeted approach ensures high reliability at cost-effective locations rather than uniformly distributing all sensor types throughout the entire system.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system monitors multiple parameters (movement, weight, optical properties, vibration, sound, vacuum levels) to comprehensively detect dispensing errors. By changing the type of measurement parameter rather than simply adding more sensors of the same type, the system achieves high reliability through multi-parameter monitoring while controlling manufacturing costs. Different parameters can be detected by relatively simple sensor types, and combining these parameter measurements provides comprehensive error detection capability.

Inventive Principle:
Principle #35Parameter changes

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

Enhances the accuracy and reliability of pharmaceutical dispensing by detecting and alerting for errors in real-time, ensuring correct dispensing and reducing waste, thereby meeting regulatory standards and improving operational efficiency.

Implementation Method 1

one or more vacuum sensors configured to monitor vacuum values of one or more of a part of the pharmaceutical dispensing machine that performs said relaying of the at least one pharmaceutical

Methodology Applied
Scientific EffectVacuum pressure detection: Vacuum

Implementation Method 2

one or more vibration sensors configured to monitor vibrations of one or more of the pharmaceutical dispensing machine in general, the plurality of parts and a bottom of the pharmaceutical dispensing machine

Methodology Applied
Scientific EffectVibration detection: Vibration

Implementation Method 3

one or more sound sensors configured to monitor sounds emitted from one or more of the pharmaceutical dispensing machine in general, the plurality of parts, sounds detected at a bottom of the pharmaceutical dispensing machine

Methodology Applied
Scientific EffectSound detection: Sound

Implementation Method 4

one or more optical sensors configured to monitor one or more of movement of the at least one pharmaceutical and status of the at least one dedicated container

Methodology Applied
Scientific EffectOptical detection: Reflection

Data Source

PatentUS11699320B2Apparatuses and methods for dedicated sensors used in pharmaceutical packaging and dispensing devices
Publication Date: 2023.07.11 TECH PHARMACY SERVICES LLC
  • US11699320B2 patent drawing
  • US11699320B2 patent drawing
  • US11699320B2 patent drawing

AI summary

A pharmaceutical dispensing machine comprising a plurality of modules, said plurality of modules comprise one or more sensors configured to monitor at least one pharmaceutical during a pharmaceutical dispensing process and alert when said at least one pharmaceutical is not detected by at least one of said one or more sensors.