Single-Particle Dispensing Device Using Rotating Separator
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Solution Overview
Problem
Conventional dispensing devices are unable to separate and individually discharge a single particle from a fluid, as they either discharge multiple particles or are limited to discharging fluid only, lacking the capability to precisely control the discharge of a single particle at a specific location and time.
Innovation Solution
A single-particle dispensing device comprising a syringe, a particle separating body with a rotating body and a fixing body, a pressure sensor, and an air compressor, which separates particles from fluid and allows for the precise discharge of a single particle through a nozzle, utilizing pressure changes to switch between fluid diversion and particle discharge modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional dispensing device discharges fluid containing particles, then fluid can be discharged, but multiple particles are discharged instead of a single particle
Solution Approach 1:
The device segments the particle discharge process by separating particles from fluid through a particle separating body, then individually discharging selected particles. The syringe is divided into a fluid discharge path and a particle discharge path, allowing independent control of fluid and particle discharge.
Solution Approach 2:
The invention extracts particles from the fluid stream using a particle separating body (such as a filter or separator membrane). The separated particles are then held in a particle holding space and selectively discharged through a particle discharge nozzle, enabling single particle discharge precision.
2Ease of operation
If a particle printer method is used to discharge fluid droplets containing particles, then fluid can be discharged at desired time and position, but the number of particles in the droplet cannot be adjusted
Solution Approach 1:
The device dynamically switches between fluid discharge mode and particle discharge mode using a movable partition or valve mechanism. The particle discharge nozzle can be activated independently to discharge a single particle at the desired time and position, while the fluid discharge continues separately, providing dynamic control over particle quantity.
3Manufacturing precision
If a separator is used to separate particles according to size, then particles of various sizes can be separated, but individual particle discharge at specific position and time cannot be implemented
Solution Approach 1:
The particle separating body acts as an intermediary between the fluid containing particles and the particle discharge system. It separates particles from fluid and delivers them to a particle holding space, where they can be individually selected and discharged through a controlled nozzle system, enabling both separation and individual discharge control.
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 the precise and individual discharge of a single particle at a specific location and time, enhancing the precision of the dispensing process by separating particles from the fluid and controlling their discharge effectively.
Implementation Method 1
a vacuum pump connected to the container and moving the particles and the fluid contained inside the first syringe in the particle separating body
Implementation Method 2
an air compressor connected to the particle separating body and injecting compressed air into the particle separating body to discharge the particle separated in the particle separating body
Implementation Method 3
the rotating body may rotate based on the pressure measured by the pressure sensor to move the separated fluid to the container or to discharge the separated particle to the nozzle
Data Source
AI summary
An embodiment of the present invention provides a single-particle dispensing device, including: a first syringe containing particles and fluid therein; a particle separating body connected to an outlet end of the first syringe and separating the particles from the fluid; and a container connected to the particle separating body and containing the fluid separated in the particle separating body, wherein the particle separating body includes a rotating body provided with a particle collector collecting the particle and a fluid flow path formed therein, and a fixing body provided with a nozzle discharging the particle and rotatably accommodating the rotating body therein.