Sealed Fluid Delivery Assembly with Piercing Tip
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Solution Overview
Problem
Existing fluid delivery systems for biologically or chemically active substances, such as parasiticides, face challenges including leakage, bacterial contamination, evaporation, and user exposure during application, as well as difficulties in measuring precise dosages and maintaining stability of the active ingredients.
Innovation Solution
A sealed fluid delivery assembly with a cap-applicator structure that has a piercing tip in an inactive configuration, which can be easily converted to an active configuration with a multi-stage detent mechanism to prevent accidental activation, ensuring minimal user contact and precise dosage delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reservoir is opened to attach an applicator, then the applicator can be connected for dispensing, but the user is exposed to the chemical and leakage risk increases
Solution Approach 1:
The applicator is pre-attached to the reservoir in a sealed state during manufacturing. The piercing tip is positioned in an inactive configuration that maintains the seal, allowing the product to be stored and transported without user exposure. The user simply needs to activate the pre-assembled unit by converting the piercing tip from inactive to active configuration.
2Productivity
If the reservoir is opened for application, then the fluid can be dispensed, but the chemical may evaporate or transform into harmful substance
Solution Approach 1:
The sealing membrane is extracted and positioned at the opening of the reservoir. The piercing tip penetrates this membrane to create a controlled opening, allowing the fluid to be dispensed while maintaining the integrity of the reservoir. This extraction of the sealing function to a specific membrane enables controlled access without compromising overall stability.
3Productivity
If a piercing tip is provided to pierce the reservoir, then the fluid can be delivered through the applicator, but accidental piercing may occur
Solution Approach 1:
The piercing tip is designed with dynamic positioning capability, allowing it to switch between an inactive configuration (where it does not pierce the reservoir) and an active configuration (where it pierces the reservoir). This dynamic positioning is achieved through a flexible membrane mechanism that responds to user action, ensuring the piercing only occurs when intended.
Solution Approach 2:
The flexible membrane provides tactile feedback to the user during the activation process. As the user applies force to convert the piercing tip from inactive to active configuration, the membrane deforms and eventually breaks, providing a clear sensory signal that activation has occurred. This feedback mechanism prevents accidental activation by requiring deliberate user action.
4Ease of operation
If the applicator is attached after opening the reservoir, then the applicator can be connected, but the chemical may lose effectiveness over time
Solution Approach 1:
The applicator is pre-attached to the reservoir in a sealed state during manufacturing, creating a complete integrated unit. This preliminary assembly ensures that the chemical remains protected until the moment of use, maximizing its effectiveness duration. The user receives a ready-to-use product that maintains chemical integrity from manufacturing through storage to application.
Data Source
Figure 1A~1B
Figure 2~3
Figure 4A~4B
AI summary
Assemblies in accordance with the invention can lead to an exceptionally easy to use, safe, and convenient system and method of applying a fixed dosage of chemicals to which a user might wish to avoid contact, such as parasiticides. In the present invention, a fluid, such as a pesticide or parasiticide, glue, solvent, lubricant, medicament and the like is loaded into a fluid reservoir and the reservoir sealed. The reservoir can be attached to a cap-applicator structure which is in an inactive configuration. In the inactive configuration, a piercing tip remains poised over the reservoir in an inactive configuration without forming an opening in the reservoir. The cap- applicator can have a sharp intsernal piercing tip capable of piercing the reservoir when the assembly is converted into an active configuration. This will allow the user to dispense the liquid out of the reservoir through the applicator.