Modular Medical Pump Housing for Reservoir Replacement

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Solution Overview

Problem

Current medical device systems for delivering insulin or other substances to patients often involve traumatic needle insertion methods, and there is a need for a system that can provide controlled and efficient delivery of medication while minimizing discomfort and allowing for easy replacement of disposable components.

Innovation Solution

A medical device system comprising a set of housing portions, fluid conduits, and a drive device that allows for the selective engagement and disengagement of reservoirs, enabling controlled delivery of fluidic media through a user-friendly interface and facilitating the replacement of disposable components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a needle is forced quickly into the patient's skin by a spring mechanism, then the insertion is less traumatic to some patients, but other patients may feel more trauma compared to slow steady insertion

Engineering Contradiction:
Improvepatient comfort during insertionVSAvoidinsertion trauma
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system allows dynamic adjustment of insertion speed between fast and slow modes, enabling the device to adapt to different patient needs and preferences, thus resolving the contradiction between quick less-traumatic insertion and slow steady insertion for different patients

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The insertion mechanism can change the speed parameter of needle insertion based on selected mode, allowing the system to optimize the insertion process for different patient comfort requirements and reduce overall insertion trauma

Inventive Principle:
Principle #35Parameter changes

2Ease of repair

If the pump is configured as an external device, then it allows for easy replacement of reservoirs and maintenance, but it requires fluid tubing connection that may be cumbersome

Engineering Contradiction:
Improvereservoir replacement easeVSAvoidfluid connection complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The pump system is divided into separable components including the pump body and disposable infusion sets, allowing easy replacement of reservoirs while maintaining a manageable connection interface that reduces overall system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The infusion sets are designed as disposable components that can be easily attached and detached from the pump, simplifying maintenance and reservoir replacement while reducing the complexity of permanent fluid connections

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Manufacturing precision

If the pump delivers medication at controlled rates, then it provides precise medication delivery, but it requires complex control mechanisms and programming

Engineering Contradiction:
Improvemedication delivery precisionVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pump system incorporates automated control capabilities that reduce the need for complex manual programming, allowing precise medication delivery through self-regulating mechanisms and simplified user interfaces

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS8377002B2Connection and alignment systems and methods
Publication Date: 2013.02.19 MEDTRONIC MINIMED INC
  • US8377002B2 patent drawing
  • US8377002B2 patent drawing
  • US8377002B2 patent drawing

AI summary

A medical device system may include a set of housing portions, which includes a first housing portion and a second housing portion, and a third housing portion configured to be selectively operatively engaged with and disengaged from each of the first housing portion and the second housing portion. Each of one or more fluid conduits may provide a fluid path between a user and one or more reservoirs, for containing fluidic media, supported by at least one of the third housing portion and a selected one of the first housing portion and the second housing portion. A drive device supported by the third housing portion may be configured to transfer fluidic media between one of the one or more reservoirs and the user via the fluid conduit in a case where the third housing portion is operatively engaged with one of the first housing portion and the second housing portion.