Integral Fluid Channels in Patch Pump Base
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Solution Overview
Problem
Current patch pump designs face challenges in minimizing size and complexity while effectively transporting medicament, leading to increased costs and assembly complexities due to the use of tubes as fluid pathways, which also pose leak prevention issues.
Innovation Solution
The design incorporates fluid channels that bypass a fluid ingress barrier, routing flow from a sealed internal region to an unsealed region within the patch pump housing, allowing efficient medicament delivery to the patient with minimal complexity and reduced size, using a housing with a reservoir, pump, and delivery cannula, and fluid channels disposed on the base for orientation towards the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If tubes are used as fluid pathways in patch pump designs, then fluid transport is achieved, but device size and complexity increase, and manufacturing costs increase
Solution Approach 1:
The patent integrates the fluid pathway directly into the base structure of the patch pump, merging the housing and fluid channel functions into a single component. This eliminates the need for separate tubes, thereby reducing device complexity while maintaining reliable fluid transport from the reservoir to the delivery needle.
Solution Approach 2:
The base of the patch pump serves multiple functions: it provides structural support, houses the fluid pathway, and facilitates fluid transport. This multi-functionality reduces the overall number of components needed, decreasing device complexity without compromising the reliability of medicament delivery.
2Ease of manufacture
If tubes are used as fluid pathways, then fluid transport is enabled, but manufacturing costs and assembly complexity increase
Solution Approach 1:
By integrating the fluid channel into the base structure, the patent reduces the number of separate parts that need to be manufactured and assembled. This simplification directly improves ease of manufacture and reduces assembly complexity, as fewer components need to be handled and connected during the manufacturing process.
3Reliability
If tubes are used for fluid pathways, then medicament delivery is achieved, but leak prevention becomes more difficult
Solution Approach 1:
The integration of the fluid pathway into the base structure eliminates multiple connection points between separate components (reservoir-tube, tube-needle). This reduction in connection points minimizes potential leak sites, improving reliability while simultaneously reducing device complexity.
4Volume of moving object
If patch pump size is minimized, then user comfort is improved, but fluid pathway routing becomes more challenging
Solution Approach 1:
By making the fluid pathway an integral part of the base structure, the patent eliminates the need for separate tubing that would require routing through the device. This allows for compact device sizing while simplifying fluid pathway routing, as the channel is directly formed within the base material rather than requiring complex routing of separate tubes.
Data Source
AI summary
A medicament delivery device comprising a housing connected to a base and enclosing an interior, the interior having a fluid channel wherein the fluid channel passes from a first position in the interior, to a second position outside the interior, and to a third position in the interior.