Ampoule Syringes TRIZ Cases

A screw-driven sleeve converts rotational motion into axial movement to mix solvent with lyophilized drug agents within multi-chamber cartridges.

A low-pressure tip isolates reactive liquids and gases until application, using a high-pressure chamber to create a controlled dispensing zone.

Adjusting member eliminates axial clearance between piston and rod, removing user priming steps for physically infirm patients.

Segmented cap insert guides axial travel to prevent needle compression and ensure reliable locking.

A medicament delivery device safety mechanism locks the actuator element to prevent unintended plunger rod release.

Nested penetrators within a collapsing flexible sleeve create a sterile connection, enabling pre-filled container assembly outside aseptic conditions.

A syringe barrel distal end features a small-diameter piercing tip and a larger-diameter luer taper connection section.

Monitoring motor current changes detects contact before breakaway force occurs, preventing unintended drug dispensing during injection.

A syringe cover slides along guide components to expose a large-diameter needle mounting part.

A reusable auto-injector draws fluid from a standard vial into its internal chamber using a biasing element.

A clip syringe uses a deformable container and pivot mechanism to drive fluid through a male luer tip.

A compact auto-injector features a sealed housing nested within a pill bottle-style protective case.

A dose button contact interface guides axial force application to enhance on-center loading.

A lever pivots to engage a selective blocking system that holds a spring-loaded piston rod in place.

Plunger driver latch prevents premature safety shroud deployment by intercepting drive spring force during needle insertion.

Interchangeable tool attachments couple to a universal shaft assembly, eliminating the need for multiple dedicated instruments during surgery.

Segmented reusable and disposable portions resolve medication waste trade-offs while maintaining ease of self-administration.

Segmented proximal portions prevent over-tightening by providing elastic deformation and tactile feedback, ensuring secure coupling while allowing easy removal.

A contoured autoinjector base uses a flexible layer to conform to body shapes, stabilizing the skin against slippage during injection.

Segmented chambers resolve sterility complexity by allowing moist heat sterilization of the liquid component while maintaining aseptic dry powder storage.

A crawling mechanism drives a plunger using friction-based wheels and swinging hooks to deliver liquid substances.

Rotating cartridge holder aligns spindle with bung for accurate dose delivery.

A flat spiral spring applies controlled force to a piston, preventing cartridge damage while ensuring accurate dose delivery.

A reusable syringe assembly uses a sliding protective frame to cover the needle tip during exchange and disposal.

Replacing worn springs with magnetic fields, this driver mechanism maintains consistent injection force and enables rapid cartridge swapping.

A spring-loaded plunger automatically drives liquid into a lyophilized chamber, resolving inconsistent manual reconstitution rates in pen-style injectors.

Modular multi-chamber mixing container combines slip-on and removal vessels for aseptic liquid handling.

A latching unit with segmented engagement prevents accidental injection of intermediate doses by ensuring automatic restoration to defined quantities.

A plunger rod resetting mechanism converts rotational dose knob motion into linear plunger movement via a lead screw and nut assembly.

A medication delivery device uses a resilient member to move the drive member proximally after dose delivery, reducing pressure on the piston.

Spaced trigger fingers reduce assembly force on the syringe flange, preventing breakage and ensuring complete needle guard activation.

A medical delivery system uses a projection and guiding groove to move a hollow needle through a closure element.

An integrated medicament pen processes continuous glucose sensor data to calculate and deliver automated insulin therapy.

Segmenting the needle tube into an array of thin, short tubes reduces injection time and pain while ensuring reliable subcutaneous insulin absorption.

Segmented body design with a light transmission area enables automated dose detection without obstructing the visual window.

A deformable sensor probe measures radial forces during injection device assembly to quantify mechanical stress on the medicament container.