Modular Infusion Pump Port Assembly for Fast Connector Replacement

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Solution Overview

Problem

Existing infusion pump systems require disassembly to replace faulty port assemblies or connectors, which is time-consuming and inconvenient.

Innovation Solution

A replaceable port assembly with one or more connectors that can be easily attached and detached from the main infusion pump assembly without disassembling the main unit, allowing for quick replacement of faulty components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the port assembly is integrated into the main infusion pump assembly, then the structural integrity and reliability are improved, but the ease of repair deteriorates because faulty components require disassembly of the main unit for replacement

Engineering Contradiction:
Improvestructural integrityVSAvoidease of replacement
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The port assembly is divided into a separate, modular component that can be independently removed from the main infusion pump assembly. This segmentation allows the port assembly to be replaced without disassembling the main unit, resolving the contradiction by maintaining structural integrity through modular design while dramatically improving ease of repair through independent replacement capability

Inventive Principle:
Principle #1Segmentation

2Ease of repair

If the port assembly is made as a separate replaceable component, then the ease of repair is improved, but the device complexity increases due to additional connection interfaces and sealing requirements

Engineering Contradiction:
Improveease of replacementVSAvoidconnection interface complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

Multiple functional elements (connectors, sealing surfaces, mounting features) are merged into an integrated port assembly module. This combining approach simplifies the overall system by reducing the number of separate components and connection interfaces needed, thereby improving ease of repair without proportionally increasing device complexity

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If quick-release mechanisms are used for the port assembly, then the productivity is improved by reducing replacement time, but the reliability deteriorates due to potential connection instability

Engineering Contradiction:
Improvereplacement speedVSAvoidconnection stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The connection mechanism transitions from a static, permanent attachment to a dynamic, controllable connection system. The quick-release mechanism allows the port assembly to be easily detached when needed while maintaining stable connection during normal operation, resolving the contradiction by making the connection state changeable between secure and releaseable based on operational requirements

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250032768A1Port assemblies
Publication Date: 2025.01.30 B BRAUN MEDICAL INC
  • US20250032768A1 patent drawing
  • US20250032768A1 patent drawing

AI summary

Systems and devices for replacing connectors using a modular port assembly. An infusion pump assembly includes a main assembly with an opening that is surrounded by a bezel. The bezel is sized and shaped to releasably receive a port assembly. The port assembly includes a connector that is oriented to releasably engage with a receptacle located within the main assembly and near the opening, and thereby form an operable connection between the connector and its receptacle (e.g., using a cable). The assembly optionally includes a gasket that is sized and shaped to rest between an edge of the port assembly and the bezel. The port assembly is releasably secured with one or more fasteners.