Transdermal Drug Delivery Device With Movable Fluid-Power Interface
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Solution Overview
Problem
Existing drug administration devices face issues with unintentional power activation, inefficient fluid transfer, and sterility maintenance, particularly when using removable vials, leading to potential handling errors and reduced autonomy.
Innovation Solution
A transdermal drug administration device with a movable connection part that controls both fluid supply and power activation through a mechanical switch, ensuring sealed connections and power only during necessary steps, using a movable connection part with complementary central pipes and a mechanical switch for secure power activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the device uses a removable vial system for fluid transfer, then adaptability and ease of operation are improved, but the risk of unintentional power activation and handling errors increases
Solution Approach 1:
The patent combines the fluid connection function and power activation function into a single movable connection part. This part simultaneously establishes fluid communication between the vial and pump system, and activates the mechanical switch for power supply, ensuring both functions occur together and cannot be activated separately or unintentionally.
Solution Approach 2:
The movable connection part acts as an intermediary mechanism that mediates between the removable vial insertion and the power activation. It translates the mechanical action of vial insertion into both fluid connection and electrical power activation, serving as a controlled interface that prevents unintentional activation while maintaining adaptability.
2Reliability
If the device maintains sterility through sealed connections, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the fluid connection interface and power connection interface into a single integrated movable connection part. This unified structure maintains sterility by providing a single sealed interface that must be deliberately activated, reducing the number of separate connection points that could compromise sterility while managing complexity through integration.
3Productivity
If the device uses an internal energy source for long-term storage, then productivity is improved, but power consumption management becomes more complex
Solution Approach 1:
The patent implements periodic power activation through a mechanical switch that remains inactive during storage and is activated only during the specific period when the vial is inserted and fluid transfer is required. This periodic activation pattern allows long-term storage while simplifying power consumption control by ensuring the battery operates only when needed.
Solution Approach 2:
The movable connection part performs self-service by automatically activating the power supply mechanism through its own mechanical movement during vial insertion. This self-activating feature eliminates the need for separate power control mechanisms, managing power consumption automatically based on actual usage requirements.
Data Source
AI summary
A transdermal drug administration device comprises: a housing; a battery; an injection system; a movable connection part for providing fluid connection between the injection system and a reservoir containing an active ingredient intended to be administered; a pump system, the pump system being motorized so as to cause a fluid to circulate within a fluid network of the device; and an electronic system for controlling the driving of the pump system, the electronic system being provided with a mechanical switch for powering the pump system with a battery, wherein the movable connection part is moveable relative to the housing and the reservoir, the movable connection part jointly controlling the fluid supply of the pump and the power supply of the electronic system during the movement, at least part of the movement being performed by a human mechanical action.