Disposable Patch Pump Module With Integrated Cannula And Battery
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Solution Overview
Problem
Existing insulin delivery systems, such as external pumps, face challenges in ensuring sterility and ease of use, particularly in the integration of cannulas and batteries, which can be cumbersome and require frequent replacement or recharging.
Innovation Solution
A patch pump design comprising a disposable module with integrated cannula and battery, coupled to a reusable module with a motor and rechargeable battery, ensuring sterility and ease of use by integrating the cannula within the disposable housing and allowing battery replacement with the disposable unit, while the reusable module maintains a sealed and pre-assembled state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cannula is integrated within the disposable housing, then sterility is improved, but device complexity increases
Solution Approach 1:
The cannula is integrated within the disposable housing as a single assembled unit. The housing includes a cannula receiving portion that receives the cannula, forming a pre-assembled disposable module that maintains sterility while simplifying the overall system architecture.
2Ease of operation
If the battery is replaced with the disposable unit, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The battery is integrated into the disposable housing as part of the disposable module. When the disposable unit is replaced, the battery is automatically replaced with it, eliminating the need for separate battery replacement operations and simplifying user interaction.
Solution Approach 2:
The battery is designed as a disposable component that is replaced along with the disposable housing and cannula assembly. This approach treats the battery as a consumable item that does not require separate maintenance, improving ease of operation.
3Reliability
If the reusable module remains sealed and pre-assembled, then sterility is improved, but ease of repair worsens
Solution Approach 1:
The pump system is divided into separate disposable and reusable modules that connect via a connection interface. The reusable module housing remains sealed and pre-assembled to maintain sterility, while the disposable module can be independently replaced without opening the reusable portion.
4Ease of operation
If the disposable module includes all consumables, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The disposable housing integrates multiple consumables including the cannula, battery, and adhesive patch into a single replaceable module. This consolidation improves ease of operation by allowing single-unit replacement while the modular architecture manages the inherent complexity through clear separation from the reusable portion.
Data Source
Figure 1
Figure 2A~2C
Figure 3
AI summary
Disposable module (20), which can be coupled with a reusable module (10) to form a pump for metered delivery of a substance to a user when coupled, with a housing that surrounds the following components: - a reservoir (22) for receiving the substance to be delivered; and - an extendable cannula (23), in particular a hard cannula and/or a soft cannula, which is or are in fluid contact with the reservoir (22) at least after insertion or permanently, i.e. also before an insertion process.