Ampoule Syringes TRIZ Cases

Electronic sensors detect mechanical coding features on drug reservoirs to prevent incorrect dosing by verifying the specific medicament type before use.

Optimized needle projection length and outer diameter enable precise intradermal injection, preventing vaccine leakage while maintaining immunocompetence.

Oblique contact surfaces on dispense stop features constrain lead screw rotation to eliminate mechanical play and ensure dose accuracy.

Segmented latch tabs prevent premature trigger activation, ensuring reliable automated medicament administration.

A cylindrical member with a helical track uses an optical sensor to detect encoded images for dose determination.

Rotating needle shield exposes cannula tip to vent overpressure, ensuring accurate dose delivery independent of temperature changes.

A drug delivery device uses a locking mechanism to separate the needle from the medicament until activation.

Segmented storage preserves drug stability while a pre-loaded spring drives the needle through a sterile septum for immediate injection readiness.

Segmenting electronics into a reusable add-on device enables automated dose logging via optical character recognition while keeping disposable unit costs low.

A mixing mechanism rotates a two-chamber container to blend active substances with dilution liquids via a bypass connection.

A pressure sensor detects overpressure changes in a hollow body to verify correct plug alignment during insertion.

An elastic holding element clamps a carpule within an injection device holder to compensate for manufacturing tolerances and eliminate axial play.

A blister strip uses a reservoir applicator to separate liquid allergens from the skin contact area.

Integrated magnifier in injection device housing resolves label legibility issues for small containers.

Collapsible reservoir expels medicament through needle via hydraulic leverage, simplifying operation and reducing device complexity.

Mechanical coding collars on drug reservoirs prevent cross-use errors and counterfeiting by ensuring only authorized cartridges load into specific devices.

Dynamic state switching in the ratchet system resolves the contradiction between ease of dose setting and stability under external forces.

Rotating plunger locking prevents unintentional dose setting while cap assembly exposes needle only after removal, resolving reliability issues.

An electrical discharge system generates pulsed shock waves to expand liquid and inject drugs, eliminating complex optical equipment.

Overlapping coating phase transitions prevent seal compromise during controlled cooling to -80°C, ensuring pharmaceutical stability.

An autoinjector assembly uses an inverted connecting arrangement where a cap projection engages a main body recess to resolve weak and non-visible connections.

Sequential sleeve movement exposes the needle first, then delivers medicament to muscle tissue, resolving accuracy risks from single-step designs.

Hinged zones in vial guidance flex members reduce detachment reaction forces, enabling secure fits across varying vial tube diameters.

A compression spring injection device uses a threaded dose setting sleeve and ratchet gear to select precise medicament volumes.

A sterile protective cover encloses a motor-driven pen-injector that dispenses precise therapeutic doses into the eye.

An asymmetrical fastening mechanism with projections and grooves prevents incorrect medicament coupling while enabling multiple coding geometries.

An interlock switch detects needle shroud position to activate the motor, preventing incomplete dose delivery caused by manual operation errors.

Metallocene catalyst produces ethylene-propylene block copolymer in polypropylene to prevent low molecular weight elution during injection molding.

Non-Newtonian fluid damping prevents accidental injection by absorbing impact forces, retaining the trigger in its active position to indicate usage status.

Separate compartments store dry drugs and liquids until actuation ruptures a barrier, preserving potency while eliminating manual preparation steps.

Separate reservoirs with a mechanical linkage automate dose calculations, resolving the trade-off between dosage flexibility and user operation simplicity.