Primed Liquid Dispenser for Precise Tissue Adhesive Control
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Solution Overview
Problem
Existing tissue adhesives are not easily controlled upon delivery to a wound due to their low viscosity and the lack of precise dispensing mechanisms in current dispensers.
Innovation Solution
A liquid dispenser with a priming mechanism that creates and stores an actuation force, controllably released via an actuation control mechanism, allowing for precise dispensing of liquids, including multi-component adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sealed tube containing low viscosity tissue adhesive is used and the opening is unsealed, then the adhesive can be delivered by simple squeezing, but the dispensing cannot be precisely controlled upon delivery to the wound
Solution Approach 1:
The tube is pre-scored with a score line that allows controlled breaking at a specific location. The piercing element pre-punctures the seal at a controlled position, enabling precise dispensing start point while maintaining ease of operation through simple squeezing motion.
Solution Approach 2:
A piercing element acts as an intermediary between the user's squeezing action and the adhesive flow. This element controls the moment and location of seal breakdown, translating simple squeezing into precise controlled dispensing at the wound site.
2Device complexity
If a simple sealed tube dispenser is used, then the device complexity is low, but the control over liquid dispensing is poor
Solution Approach 1:
The dispenser is segmented into functional components: a sealed tube for storage, a score line for controlled breaking, a piercing element for seal puncture, and a plunger mechanism for controlled advancement. This segmentation allows each component to perform its specific function, achieving good dispensing control without excessive overall complexity.
Solution Approach 2:
The system transitions from a static sealed tube to a dynamic system where the score line allows controlled breaking, the piercing element enables controlled seal puncture, and the plunger provides controllable advancement. This dynamic behavior enables precise dispensing control while maintaining relatively simple device architecture.
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
Enables controlled and precise dispensing of liquids, particularly tissue adhesives, providing better cosmetic outcomes and antimicrobial barriers with improved application control.
Implementation Method 1
the priming mechanism creates and stores an actuation force, which breaks the sealed fluid delivery system and the force can be controllably release with an actuation control mechanism
Data Source
AI summary
The disclosed dispenser provides for controlled dispensing of a liquid. The dispenser has a housing that supports a fluid holding system, fluid delivery system, priming mechanism, and an actuation control mechanism. The priming mechanism creates and stores an actuation force, which breaks the sealed fluid delivery system and the force can be controllably released with an actuation control mechanism to dispense the liquid. The actuation control mechanism includes a plunger that slidably advances into fluid-containing cylinders from force by the priming mechanism. The actuation control mechanism further includes an actuation button that interlocks with the plunger to start and stop dispensing. Optionally, the dispenser has two cylinders and a mixing chamber for dispensing a multi-component liquid, such as an adhesive.