Syringe Actuating Assembly V-Cradle Positioning

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Solution Overview

Problem

Existing syringe actuating assemblies in pharmaceutical product preparation machines fail to ensure the correct initial position of the syringe cylinder and piston, which can compromise the accurate dosing of pharmaceutical products into syringes and infusion bags.

Innovation Solution

A syringe actuating assembly with a gripping device that includes articulated arms, a V-shaped cradle for precise positioning of syringes, and a mechanism to ensure correct axial and angular alignment of the piston within the cylinder, allowing for consistent and accurate placement of syringes and bottles, enabling reliable dosing operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a robotized arm transfers syringes to the actuating assembly, then automation and productivity are improved, but the correct initial position of the cylinder and piston cannot be ensured

Engineering Contradiction:

Improveautomation of syringe transferVSAvoidinitial position of cylinder and piston

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The V-shaped cradle is designed to pre-position the syringe cylinder at the correct orientation and location before the gripping device engages it. The articulated arms are configured to approach and grasp the piston at predetermined positions, ensuring correct initial alignment is established before dosing operations begin.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The V-shaped cradle acts as an intermediary device between the robotized transfer arm and the actuating assembly. It provides a stable, pre-configured receptacle that ensures the cylinder is correctly positioned and oriented before being transferred to the gripping device, thereby mediating the transition while maintaining precision.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If manual loading of syringes is used, then correct positioning can be ensured, but productivity and operational efficiency deteriorate

Engineering Contradiction:

Improvepositioning accuracy of syringe componentsVSAvoidoperational efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The V-shaped cradle and articulated arm mechanism are designed to self-align and self-position the syringe components during automated transfer. The geometry of the cradle naturally guides the cylinder into the correct orientation, and the articulated arms are configured to automatically engage the piston at the proper position, eliminating the need for manual positioning while maintaining precision.

Inventive Principle:

Principle #25Self-service

3Manufacturing precision

If the actuating assembly requires machine shutdown for loading, then positioning accuracy can be maintained, but productivity and operational continuity deteriorate

Engineering Contradiction:

Improvedosage accuracyVSAvoidoperational continuity

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The actuating assembly is designed with the V-shaped cradle and articulated arm mechanism to enable continuous automated loading and positioning of syringes without requiring machine shutdown. The system maintains operational continuity by seamlessly transferring syringes from the robotized arm through the cradle to the gripping device, allowing dosing operations to proceed without interruption while maintaining precise positioning.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentEP2511183B1Syringe actuating method and assembly

Publication Date: 2015.03.04 AESYNT TOPCO

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AI summary

A syringe (5), defined by a cylinder (12) and a piston (15) slidingly engaged within the cylinder (12) itself, is actuated once the cylinder (12) has been inserted into a claw (52) and the syringe (5) has been axially fed through the claw (52) so as to move an outer flange (13) of the cylinder (12) into contact with the claw (52) and the piston (15) to a stop position within the cylinder (12).