Ampoule Syringes TRIZ Cases

An intermediary shell resolves size mismatch between small vials and standard chambers, enabling universal compatibility without modifying the container.

Time-of-flight optical sensing determines plunger position within the barrel, resolving reliability and complexity trade-offs in compact drug delivery devices.

Disposable single-dose carpules resolve inventory complexity and expiration risks in dental offices.

A syringe uses a rotating push rod to drive a screw mechanism for precise medicament delivery.

An integrated over-torque feature reduces excessive charging force on the spring, preventing component damage when users exceed the maximum dose limit.

Cartridge light sources provide visual confirmation of correct insertion, preventing incorrect medicament loading and reducing adverse reaction risks.

A drug delivery system uses a pressure sensor to detect tissue back pressure during injection.

A movable blocking member controls mechanical coupling between an infusion pump drive and dosing unit.

An interchangeable struck limiter constrains syringe plunger travel to prevent dosage errors and needle injuries during manual medical fluid transfer.

An inclined abutment face on a mounting aid resolves alignment detection difficulties during injection device assembly.

Plastic cartridge housing uses snap-fitting neck and base parts to enclose a glass vessel for secure retention.

A medication delivery device uses a guiding element and volume limiter to simplify administration.

Radially bent U-bracket legs absorb tolerance variations to prevent rattling and provide tactile feedback during operation.

A pen injector uses a spring-energized trigger member to actuate an end-of-dose switch for automated dose logging.

Radial nesting of the needle guard prevents manipulation while enabling sterile access through dynamic housing coupling.

A drug delivery assembly uses a resilient member and interaction member to rotationally bias the cartridge holder between locked and unlocked states.

Relative rotational movement between injection device parts triggers audible or tactile signals at dose completion, resolving visual inspection constraints.

Separate springs bias locking means to prevent material fatigue failures, extending device service life.

Segmented storage vessels linked by living hinges resolve the bulk of traditional containers while maintaining sterility through individually closable caps.

A hinged door with a slidable charging link couples to the drive spring for priming.

Nested surgical pin guides instruments and delivers medication via an outer shell, resolving obstruction by surgical equipment.

Threaded latching mechanisms assign specific fluid volumes to relative positions, reducing priming wastage and latching steps.

A medicament injection device moves a needle holder axially to pierce a cartridge septum using a displacement element with ramped surfaces.

A flexible element axially fixes a drug delivery cartridge within its holder to ensure precise piston rod engagement during medication dispensing.

Segmenting the device into separate storage and distribution components resolves handling difficulties caused by large injection angles.

An inner protruding element abuts the attached needle unit to block cap engagement, preventing needle stick injuries during disposal.

Grooves frictionally engage pen injectors to maintain upright orientation, preventing mixing errors during home reconstitution of lyophilized agents.

A dispensing mechanism uses a ratchet and resisting pawls to convert displacement into controlled medicament expelling motion.

A puncturable barrier seals the syringe distal end until needle attachment, preventing ambient air contamination of the fluid chamber.

A syringe barrel rotates to drive a guide pin along a spiral track, extending and retracting the injection needle within a tubular sleeve.

A fluid delivery device uses a rotating cartridge holder to mix therapeutic agents within the housing.

A medicament delivery device moves a container holder linearly inside a housing to set doses.

Ramped engagement between a thrust collar and needle shroud prevents premature release, ensuring complete medicament delivery while reducing device complexity.

A frontal attachment uses a coiled spring to advance and retract an oblique injection needle within a dental syringe barrel.

Flexible c-clip and damping arms restrict syringe movement and absorb mechanical stress during autoinjector operation.

Shared fastening means with mechanical coding features prevent incorrect medicament loading and counterfeiting risks.

A fluid path assembly integrates a needle shield valve member with a movable barrier to establish a sterile drug delivery flow.

An activation unit controls cannula exposure timing to prevent leakage, ensuring accurate dosing while integrating with electronic devices.

Inverting cap positions resolves user orientation confusion while extraction eliminates cover interference.

Rotating hinge portions compress the drive spring, reducing user effort and preventing needle stick injuries during syringe replacement.

A resiliently moveable shoulder secures an injection spring to a plunger rod, reducing manufacturing tolerance costs while maintaining reliable engagement.

Secondary chamber amplifies injection force to resolve leakage and dose inaccuracy during high-pressure intradermal medication delivery.

A unitary receiving frame immobilizes an automatic injector cartridge by containing plunger driver forces.

Longitudinal relief channels in the piston bypass residual liquid to ensure reliable snap-action coupling without mold burrs.

A spring element for drug delivery devices uses rigid transverse connections to mechanically couple consecutive windings.