Ampoule Syringes TRIZ Cases

A medicament injector uses a button to move a cartridge onto a needle unit, fluidly connecting the components for injection.

A flexible cannula delivers leading bleb fluid to the subretinal space.

A wearable apparatus uses a mechanical drive train to sequentially unseal a reservoir and discharge medication through a controlled plunger.

A drug injection device controller updates display content based on usage to provide visual feedback.

Axially inclined plates connect adjacent slats to a disk, preventing plunger inclination and liquid leakage in pre-filled syringes.

Inclined slide tracks engage guide knobs to lock the cannula, preventing disconnection and abrasion.

Gelatin marker capsule ruptures on impact to disperse visible dye, eliminating double dosing from unreliable dart retention.

Spiral threads in a dental buffer assembly swirl sodium bicarbonate into anesthetic fluid, neutralizing acidity to reduce injection pain.

Segmenting the device reduces material consumption while maintaining patient safety through sterilizable reusable components and minimal disposable parts.

Overlapping helical grooves on the spindle convert driver rotation into axial displacement, eliminating rotating core pin tooling to simplify molding.

A clutch mechanism replaces fragile flexible arms to control plunger rod movement, preventing accidental needle exposure during auto injector operation.

Removal-triggered activation prevents accidental multiple activations, preserving sterility and battery life.

Dynamic spring drive transitions from low positioning force to high injection force, preventing syringe breakage while maintaining compact device dimensions.

Unidirectional locking rings constrain actuator axial movement to prevent dose return and ensure accurate delivery.

A reusable auto-injector uses a deployable sheath to cover the needle after injection, enabling safe handling and device reusability.

Circumferential zones on the barrel hold separate graduated scales for each API concentration, eliminating calculation errors and ensuring precise dosing.

Elastic arms deflect during insertion and snap over the cap sill to remove protective covers with minimal force while maintaining sterility.

A medicament delivery device lock mechanism uses a transverse actuator to disengage interlocking members and release the needle cover.

A medicament delivery device employs a friction-enhancing delay mechanism to generate post-injection signals, resolving manufacturing tolerance trade-offs.

A liquid administration device uses a cover-linked slider to restrict plunger pressing until the needle tip is exposed.

A liquid dispensing system uses a sharp protuberance to rupture a cartridge septum and drive a piston for controlled medicine release.

Differential pitch threads convert plunger rotation into precise axial movement, resolving measurement precision trade-offs in syringe dosing.

An automated syringe actuator drives piston reciprocation to standardize fluid discharge during dermal regeneration procedures.

Segmented plungers and a universal feed screw resolve the trade-off between compact size and mechanism complexity.

Segmented control and drive springs isolate needle insertion force from injection pressure, preventing wet injections of high viscosity medicaments.

A reservoir wall made of cyclic olefin copolymer blocks light while integrating localized transparent windows.

A dual barrel injection device couples and decouples a needle housing from a plunger base to mix components during dispensing.

A needle guard with a finger grip slot shields the syringe tip after injection.

A differential gear mechanism translates single actuator motion into separate dispensing movements for primary and secondary medicaments.

A mechanical drive train with a spring-loaded plunger and ratchet system delivers viscous drugs at a controlled rate without complex electronics.

A pneumatic power pack propels a plunger using pressurized gas to eject medicament, reducing manufacturing complexity and cost.

A universal drug injection device accommodates interchangeable cartridge adapters via a nested main body and standardized drive interface.

Nested plastic housing retains a glass vessel via snap fittings to resolve compatibility issues between infusion pumps and drug cartridges.

A drug delivery device uses a C-shaped locking clip to secure subassemblies.

An integrated plastic safety shield eliminates metal parts and reduces manufacturing complexity while protecting against needle stick injuries.

Administration apparatus controls dosing liquid pressure transition using periodic vibration elements to reduce tissue impact damage during injection.

Electromechanical bung retraction after dwell time prevents after-dripping leakage and overdosing in medical fluid delivery devices.

A retractable sealing element encloses a fluid infusion delivery needle using elastic deformation to form a secure connection.

A magnetic sensing system detects insulin reservoir presence within an infusion pump housing, preventing fluid ingress and accidental delivery.

A flexible tab holds a rear wall member in a lock position to secure the plunger rod within a medicament delivery sub-assembly.

Rotatable body portions release a spring-loaded plunger via a releasable retainer to prevent premature activation.

A transversal clock spring nested within the tubular housing generates high expulsion force without increasing device diameter.

A disposable syringe assembly kit transforms conventional cartridges into ready-to-use injection devices.

An angled nozzle adapter redirects injectate flow laterally to target the subcutaneous layer with precision.

Lateral cam actuation moves a reservoir and piston to dispense fluid doses through a piercing membrane, eliminating priming waste of active ingredients.

Rounded window contours redistribute stress forces in drug delivery cartridge holders to prevent breakage at sharp corners during snap fastening.

A valved container assembly uses a plunger to pressurize fluid and a resilient seal that opens upon exceeding a pressure threshold.

Integrated orthogonal clips on the cassette body engage lower shell features to resolve manufacturing precision issues and prevent component withdrawal.

A controller adjusts piston speed to control liquid flow during mixing.