Ampoule Syringes TRIZ Cases

A syringe carriage uses a coiled compression spring to retract the needle tip inside the housing after injection.

Friction brake mechanism adjusts injection speed via variable resistance, reducing user discomfort and pain from fast forceful drug delivery.

Protective device applies a resistance force generator to suppress inadvertent needle disengagement and enhance handleability.

Segmented flexible arms decouple drive elements to ensure complete syringe discharge without complex unlatching mechanisms.

Electronic injector assembly manages liquid medicament delivery via motorized drive mechanism and integrated sensors.

Segmented trigger components convert linear motion to rotation, resolving static friction issues that cause unsynchronized needle feedback.

A spring-powered needle-less injector uses a field-filling adaptor to pre-dose vials for reliable delivery.

Guide track constrains tracking member displacement during dose setting to prevent exceeding maximum reservoir capacity.

A drug delivery system uses a displaceable closure to establish fluid communication without adhesives.

An expandable ring syringe carrier provides even radial support for rigid needle shields in autoinjectors.

Acoustic and tactile feedback mechanisms resolve visual impairment barriers in dose determination without increasing mechanical complexity.

Flexible legs wrap over the barrel exterior to minimize storage space requirements while maintaining efficient fluid delivery capabilities.

A supplementary device attaches to auto-injectors using alignment features and non-contact sensors.

An injection device uses an interchangeable drive coupling to transfer piston movement and optimize syringe extension mechanics.

A mixing vial with a unitary hollow chambered stopper and dislodgeable plug combines anesthetic and buffering solutions in one container.

A spring-loaded friction brake converts mechanical energy into heat to limit angular velocity of rotating parts in medical injection devices.

Radial ribs in a syringe bypass chamber create uniform flow paths that overcome surface tension and eliminate trapped air bubbles.

Stacked disinfecting and lubricating agents in a needle cover sanitize and reduce friction on an injection needle, lowering medical waste volume.

An electronic add-on module uses elastically deformable arms to grip drug delivery devices securely.

A one-step anesthetic buffering carpule integrates sodium bicarbonate within a rubber plunger puncture unit for immediate mixing.

Compressible bore walls absorb mechanical energy from the plunger head, reducing peak impact forces on the stopper during medicament expulsion.

A rotatable drive mechanism distributes axial force through threaded engagement to protect the syringe barrel.

Pressurized gas drives a drug delivery device that retracts the needle automatically when a flexible membrane deforms under pressure.

A collapsible reservoir compresses during device attachment to prime a secondary medicament through an engagement needle.

A locking assembly uses a rotating plate and alignment member to prevent rotational drift of the dosing member during injection.

Sequential sensor operation prevents peak resource draws while ensuring accurate logging of dose sizes and drug types.

Pneumatic actuation drives viscous medicament delivery through segmented pressure phases, resolving force-volume trade-offs.

Dual sensor arrangement detects helical dose sleeve movement to calculate dispensed medicament size, resolving accuracy issues in pen injectors.