Robotic Filling Arm Optical Sensor Guidance

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Solution Overview

Problem

Current pharmaceutical filling systems lack flexibility and often result in lower quality products due to human contamination risks and equipment limitations, particularly in small cleanroom facilities, and are not optimally equipped for handling potent or toxic drugs.

Innovation Solution

A robotic filling system with an isolator chamber and optical sensor-guided filling arm that can fill containers of varying sizes and shapes without mechanical handling, maintaining aseptic conditions and allowing for pre-fill inspection to reduce contamination and product waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If robotic filling systems are used to reduce human contact and contamination, then product quality and sterility are improved, but device complexity and initial cost increase

Engineering Contradiction:
Improveproduct qualityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The robotic filling system is designed to handle multiple container types (vials, syringes, cartridges) and various product viscosities through programmable control, allowing a single system to perform multiple filling functions without requiring separate specialized equipment for each product type

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

Solution Approach 2:

The system replaces manual mechanical handling with automated robotic arms controlled by computer programming and optical sensors, eliminating the need for operators to physically handle containers and reducing mechanical complexity through software-based control logic

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If small cleanroom facilities are used for filling operations, then flexibility in outsourcing is improved, but product quality and contamination control deteriorate

Engineering Contradiction:
ImproveflexibilityVSAvoidproduct quality
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system operates within an isolator that maintains a controlled sterile environment with defined air flow patterns and pressure differentials, creating an inert protective atmosphere that prevents contamination during filling operations while allowing the facility to remain compact

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Solution Approach 2:

The robotic system performs self-positioning and self-alignment using optical sensors to detect container openings and guide the filling arm automatically, eliminating the need for complex mechanical positioning systems or additional facility space for manual setup

Inventive Principle:
Principle #25Self-service

3Productivity

If high-speed filling lines are used to increase productivity, then output is improved, but flexibility with respect to batch size and product variations deteriorates

Engineering Contradiction:
ImproveoutputVSAvoidflexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The robotic filling system uses programmable control that allows dynamic adjustment of filling parameters, batch sizes, and operating speeds through software configuration rather than physical reconfiguration, enabling the system to adapt to different production requirements without sacrificing speed or precision

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as filling volume, filling speed, and container handling parameters through software control rather than mechanical adjustment, allowing rapid transition between different product specifications and batch sizes while maintaining high productivity

Inventive Principle:
Principle #35Parameter changes

4Measurement precision

If optical sensors are used to guide the filling arm, then positioning precision is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The optical sensor acts as an intermediary that detects container positions and communicates this information to the control system, which then guides the robotic arm without requiring direct mechanical measurement or complex positioning mechanisms on the arm itself

Inventive Principle:
Principle #24Intermediary (Mediator)

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 provides increased flexibility and quality in filling operations, reducing human contact, minimizing contamination risks, and enabling efficient handling of potent or toxic materials by allowing precise targeting and filling of containers, thereby enhancing product safety and reducing labor and time costs.

Implementation Method 1

An optical sensor is configured to sense openings of the containers within the chamber

Methodology Applied
Scientific EffectOptical sensing: Light

Data Source

PatentUS9789986B2Robotic filling systems and methods
Publication Date: 2017.10.17 VANRX PHARMASYST
  • US9789986B2 patent drawing
  • US9789986B2 patent drawing
  • US9789986B2 patent drawing

AI summary

Systems and methods are disclosed, which permit filling containers with a product. A filling arm is disposed within a chamber and an optical sensor is configured to sense openings of the containers within the chamber. Locations of the sensed openings are used to guide the filling arm to fill the containers with a product.