Ampoule Syringes TRIZ Cases

A nested holder and spring-retraction layout enables reliable 5-10 mL self-injection while reducing assembly complexity and needle handling.

A pressure-activated bypass path relieves vial flow buildup during radioactive compound delivery, improving shielding and delivery safety.

A hermetic sleeve, wiper seal, and breathable membrane enable ethylene oxide sterilization of sensitive cartridges while allowing residual gas removal.

A disabling unit permanently blocks stored dose data readout in disposable drug delivery systems, protecting patient privacy after disposal.

A piston-driven vacuum chamber holds the injector steady during dispensing, reducing early removal, discomfort, and incomplete dose delivery.

A two-part piston rod driver releases and retracts the rod for cartridge replacement, making torsion spring injectors reusable.

A priming spring and interlocked plunger let low-viscosity tissue adhesive start, stop, and dispense more precisely at the wound site.

A wireless add-on for drug delivery devices uses phone-triggered alerts to improve dose timing compliance without adding complex electronics.

An in-place refill port and piston feedback help injection pens maintain medicine supply continuity without frequent cartridge changes.

Button position and sleeve rotation detection trigger feedback that confirms dose start and completion in self-injection pens.

A sleep-state microcontroller and contact-triggered wake-up circuit cut standby drain in injection devices while preserving full operation when primed.

A three-part syringe dose divider uses stops and tactile projections to enable one-handed, equal medication dosing without plunger redesign.

Sliding-contact sensing tracks dose-member rotation to automatically measure delivered medication with higher accuracy and less manual recording.

A split reusable and disposable injector pen uses rack-and-pinion actuation to simplify cartridge replacement while reducing device waste.

Analyte data, therapy parameters, and sensors let an insulin device calculate and deliver a bolus after user confirmation without manual dose entry.

Dual optical sensors sample encoder motion at different frequencies to track injection dose accurately while limiting battery use.

Angled seal piercers, flow restrictors, and nozzle geometry improve mixing of different-viscosity adhesive fluids for bubble-free, uniform beads.

A clip-on coupling and distal seal arrangement let one medicament cartridge fit multiple dosing devices while preserving sterility.

A cam-guided inner sleeve simplifies medicament injectors by shielding and retracting the needle with fewer parts, improving reliability and assembly.

A wheel-shaped syringe cartridge automates closed nucleic acid extraction and amplification to cut detection time and contamination risk.

A pre-stressed spring releases on cap removal to insert the needle into the cartridge, reducing handling steps and needle stick risk.

A motor-driven plunger locks and releases the medicament cassette automatically, improving needle orientation and injection control.

A detachable ratchet and metering screw let the syringe switch to standby, reset after vial depletion, and be reused with accurate dosing.

Ultrasound sensing through the dose setting dial identifies medicament and tracks dose without blocking the dose window or adding housing cutouts.

A bulbous reservoir and outward-flaring pins help apply more removal solution evenly across tattooed or scarred skin.

A keyed cartridge interface minimizes compressible gaps and preserves needle-septum alignment despite length tolerance and thermal expansion.

A hydrophobic cycloolefin resin barrel and very low surfactant level limit protein aggregation and surfactant breakdown during storage.

A detachable spacer locks the movable part during add-on attachment, preventing unintended injection device operation and preserving dose functions.

Separate powder and diluent chambers automate mixing and injection, reducing reconstitution steps and contamination risk.

A self-powered driver replaces manual plunger force with gas-pressure actuation and variable-valve control for precise viscous-fluid delivery.

Track injected doses without an internal battery by shifting RFID resonance frequency as the device’s plunger moves.

A flexible porous membrane closes the septum crimp passage, preserving sterility while enabling reliable connections after non-sterile assembly.

Differential density helps an oral capsule self-right against GI mucosa, while spring-driven liquid injection limits drug degradation.

A flexible ring and retention arms hold spring force during injection while supporting safe cartridge installation and deliberate reset.

Flexible snap-fit fingers secure the insulin reservoir without threading, helping prevent leakage and unwanted bolus delivery.