Universal Rotating Body for Multi-Bag Centrifugal Separation

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Solution Overview

Problem

Conventional centrifugal separation systems require dedicated devices for different types of centrifugal bag sets, limiting their utilization efficiency and flexibility.

Innovation Solution

A centrifugal separation system that uses a rotating body capable of accommodating multiple types of centrifugal bag sets, equipped with a liquid delivery mechanism, balancer, and control units to automate the separation process, allowing for efficient transfer and sealing of liquids between bags.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dedicated centrifugal separator is prepared for each type of centrifugal bag set, then the separation process can be performed accurately, but the utilization efficiency of the centrifugal separator decreases and device complexity increases

Engineering Contradiction:
Improveseparation accuracyVSAvoidutilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The centrifugal separator is designed with a universal rotating body that can accommodate multiple types of centrifugal bag sets through interchangeable slot arrangements. The control unit automatically identifies the bag set type and adjusts separation parameters, enabling one centrifugal separator to perform multiple separation functions accurately without requiring dedicated devices for each bag set type.

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

2Reliability

If a dedicated centrifugal separator is prepared for each type of centrifugal bag set, then the separation process can be performed accurately, but device complexity increases

Engineering Contradiction:
Improveseparation accuracyVSAvoidnumber of centrifugal separators
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The centrifugal separator incorporates a universal rotating body with reconfigurable slots and an automated control system that identifies bag set types and adjusts separation parameters accordingly. This eliminates the need for multiple dedicated centrifugal separators, reducing device complexity while maintaining separation accuracy through intelligent adaptation.

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

Solution Approach 2:

The rotating body design allows dynamic reconfiguration of slot arrangements to match different centrifugal bag set types. The control unit dynamically adjusts separation parameters based on automatic identification of the bag set type, enabling a single centrifugal separator to adapt to various separation requirements without structural modifications.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If manual work is used for transferring liquid between bags, then the system is simpler to operate, but labor intensity increases and productivity decreases

Engineering Contradiction:
Improveoperational simplicityVSAvoidseparation throughput
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The centrifugal separator incorporates an automated liquid delivery mechanism that automatically transfers liquid between centrifugal bags during the separation process. The system self-regulates the transfer timing and amount based on the separation progress, eliminating manual intervention while maintaining operational simplicity and significantly increasing separation throughput.

Inventive Principle:
Principle #25Self-service

4Reliability

If the centrifugal separator remains stationary during bag set replacement, then the separation process can be completed, but standby time increases and productivity decreases

Engineering Contradiction:
Improveseparation completionVSAvoidstandby time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The rotating body is designed to accommodate multiple centrifugal bag sets in advance, with pre-configured slot arrangements for different bag set types. While one bag set is undergoing separation, the next bag set is already positioned and ready in the rotating body, eliminating standby time between separations and maintaining continuous operation without compromising separation completion.

Inventive Principle:
Principle #10Preliminary action

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 increases utilization efficiency, reduces manual labor, stabilizes rotational motion, and enhances flexibility by enabling the use of multiple bag types, while automating the separation process and reducing standby times.

Implementation Method 1

a centrifugal separator that rotates the rotating body

Methodology Applied
Scientific EffectCentrifugal separation: Centrifugal Separation

Implementation Method 2

the rotating body may include a balancer that cancels a displacement in gravity center position of the centrifugal bag set

Methodology Applied
Scientific EffectGravity center balancing: Balance

Data Source

PatentEP4691645A1Centrifugal separation system, rotating body, and centrifugal separator
Publication Date: 2026.02.11 TERUMO KK
  • EP4691645A1 patent drawingFigure 1
  • EP4691645A1 patent drawingFigure 2A~2B
  • EP4691645A1 patent drawingFigure 3

AI summary

A centrifugal separation system (10) performs centrifugal separation using a centrifugal bag set (16) including a first bag (161) that accommodates a liquid to be processed, and one or a plurality of child bags that exchanges the liquid with the first bag (161). The centrifugal separation system (10) includes a rotating body (14) that accommodates one centrifugal bag set (16), and a centrifugal separator (12) that rotates the rotating body (14). The rotating body (14) is attached to and detached from the centrifugal separator (12) in a state of accommodating the centrifugal bag set (16).