Hand-Operated Actuator with Breakable Connections for Single-Use Safety
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Solution Overview
Problem
Existing piercing devices lack safety features to prevent accidental activation and ensure single-use operation, and testing devices have limitations in size reduction and fluid transport efficiency.
Innovation Solution
A hand-operated actuator mechanism with breakable connection elements and an elastic return mechanism for the piercing element carrier, combined with a compact piercing device and testing device design that includes a fluid transport system for efficient sample handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If breakable connection elements are used to ensure single-use operation, then safety is improved, but device complexity increases
Solution Approach 1:
The actuator mechanism is divided into separable components connected by breakable connection elements. The trigger element, piercing element carrier, and mounting element are segmented and joined through controlled breakable connections that ensure single-use operation while maintaining manageable device complexity through modular design.
Solution Approach 2:
The actuator mechanism is designed as a disposable single-use device with breakable connection elements that prevent reuse. This approach prioritizes safety through guaranteed single-use operation, while the modular segmented structure keeps manufacturing complexity manageable despite the added safety features.
2Reliability
If the actuator mechanism is designed for single-use operation with breakable connections, then safety is improved, but manufacturing complexity increases
Solution Approach 1:
The device is segmented into modular components (mounting element, trigger element, piercing element carrier) that can be manufactured separately and assembled. The breakable connection elements are integrated as simple structural features rather than complex mechanisms, facilitating straightforward manufacturing processes while ensuring single-use operation.
Solution Approach 2:
The actuator mechanism is designed as an inexpensive disposable device where the breakable connections are simple structural features rather than complex mechanisms. This approach ensures single-use operation for safety while maintaining ease of manufacture through simplified design and assembly processes.
3Reliability
If the piercing element carrier is made movable with breakable connections, then safety is improved, but device complexity increases
Solution Approach 1:
The piercing element carrier is segmented from other components and connected through breakable connections that enable controlled movement. This segmentation allows the carrier to move independently when needed while the breakable connections prevent unauthorized or repeated actuation, improving safety without requiring complex control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism ensures safe, single-use operation of the piercing device and reduces the size of the testing device while enhancing fluid transport efficiency and user safety.
Implementation Method 1
an elastic element that is arranged to act on the piercing element carrier for returning the piercing element carrier form the stop position in the direction of the initial position
Data Source
AI summary
The invention is related to a hand-operated actuator mechanism for driving a piercing element with increased safety. The actuator mechanism comprises a mounting element connected to a trigger element by a first breakable connection element. It also comprises a piercing element carrier connected to the trigger element by a second breakable connection element. The trigger element further comprises a pushing member that can be pushed with a human finger. The first breakable connection element is configured to be broken by means of a predetermined pushing finger force pushing said pushing member. The piercing element carrier being movable between an initial position wherein the first and the second breakable connection elements are unbroken, and a stop position wherein an abutment stops a movement of the piercing element carrier.