Ampoule Syringes TRIZ Cases

An occluding ramp retains drug depots in a cartridge channel, enabling precise implantation while minimizing tissue trauma.

A cassette spacer slides within a syringe barrel to engage the plunger-stopper, resolving static plunger rod inefficiencies across varying barrel diameters.

Segmented sterile cartridges and thermal isolation enable affordable biologic delivery while eliminating refrigeration discomfort.

Packaging system holds needle shield and used needle in separate support elements within an enclosing envelope.

Independent setting and drawing sleeves prevent overdosing by mechanically isolating dose selection from the priming operation.

A medication drive mechanism uses a stop member to constrain rotational movement of the drive member during dose setting.

Pre-compressed springs and dynamic force control prevent glass cartridge damage while ensuring accurate dose delivery.

An electronic indicator tracks needle usage via infrared reflection, preventing reuse while managing device complexity.

Real-time dynamic pressure sensing guides needle placement in dental anesthesia, preventing tissue damage from blind high-pressure injections.

A needle arrangement with a flexible fluid channel adjusts its length between compact and extended states, reducing overall device size.

A dual-compartment container uses a bypass channel to mix lyophilized medicaments with reconstitution mediums via plug displacement.

A dose setting mechanism uses a ratchet arrangement to disengage when rotation exceeds a defined limit.

A disposable injector uses a collapsible ampoule and automatic shield to eject medication safely.

A drive mechanism converts rotational movement into distal piston rod displacement using a bidirectional coupling system for dose setting and dispensing.

A separable electronic module employs optical encoding and periodic wake-sleep cycles to monitor doses while minimizing power consumption.

Segmented priming chambers remove entrapped air without wasting medicament, ensuring accurate dosing and preventing unintended priming.

A needle hiding element slides between extended and retracted positions using snap-fit locking to manage user interaction.

Segmented threaded connections optimize injection force and dose scaling precision, resolving the trade-off between operational effort and measurement accuracy.

A resilient retaining member secures a medicament container within a tubular body, preventing displacement and damage from impact forces during handling.

A handheld injection device uses a threaded gauge element nested within the dose indicator to provide visual feedback through housing apertures.

Keyed connectors and mechanical coding prevent incorrect cartridge usage and counterfeiting in fluid delivery devices.

Generating a priming light pulse stabilizes the optical sensor's signal behavior, reducing measurement uncertainty and energy consumption during dose detection.

Resonant circuit arrays detect movable conductive regions in drug delivery devices, resolving manual dialing tracking errors.

Segmenting the injector into a reusable main body and a disposable cartridge prevents explosive residue from contaminating new syringes during repeated use.

A disposable liquid applicator uses a moveable plug to seal and release medical adhesive through a flexible reservoir.

An integral connection thread and inverted septum eliminate the cartridge retainer, reducing particle contamination and uninjectable dead volume.

A mixing vial uses a dislodgeable plug to merge anesthetic and buffering solutions within a single chamber.

Decoupling the dose element from the drive mimics mechanical operation, resolving user acceptance issues while maintaining dosing accuracy.

Uniformly roughened finger flange surfaces prevent tilting and contamination risks while maintaining stable placement on flat surfaces.

Segmented crown teeth on a drive sleeve enable full nut assembly without reducing torque transmission efficiency or increasing wear.

A medication delivery device uses a resilient member to switch between operational and resetting states for the conversion element.

A rotating selection ring exposes one sterile needle at a time, preventing reuse and maintaining hygiene while reducing device complexity.

Parallel biasing members drive a piston for precise drug delivery while integrated visual indicators track position without adding electronic complexity.

A fillable medicine container uses a conduit assembly to enable user dosing adjustments in automatic injection syringes.

A flexible compartment collapses under pressure to dispense agents while a rigid insert maintains fluid communication.

Angled guide tracks invert standard coupling by rotating the cartridge holder into a fixed position, resolving user comfort issues during assembly.

A multi-chamber injection device uses a shared needle mechanism to sequentially administer preloaded medications from cylindrical chambers.

Segmenting the auto-injector into reusable and disposable assemblies maintains needle sterility while reducing manufacturing costs.

Nested bellows expand from a compressed cap state to dispense fluid, resolving sterility versus attachment trade-offs.

A portable drug delivery device integrates an electronic display into a flexible clip member to show dose-related values.

A medicament delivery device uses a manual scroll wheel to regulate plunger rod speed via a mechanical spring drive.

A syringe holder uses a second activation lever to control motorized injection functions independently from the primary activator.

An adhesive patch with designated sites communicates wirelessly with a medication applicator to verify authorization and prevent unauthorized use.

A thin porous member carries a precise therapeutic agent dose within an automatic injector for rapid liquid mixing.

Axially sliding drive mechanism eliminates axial clearance between piston and rod, removing user priming requirements.

An integrated helical sleeve converts user rotation into precise axial piston displacement, resolving the trade-off between dose accuracy and device complexity.

An elastic deformable section engages a rib on the protector to prevent accidental exposure, ensuring reliable safety after initial use.

An infrared sensor measures drug temperature in the reservoir to provide visual and audio feedback, eliminating guesswork during warming periods.

Segmenting the drive unit prevents accidental activation during reconstitution, ensuring reliable delivery of fully mixed medicament.

Segmented piston rod foot allows proximal movement during frost expansion, preventing glass cartridge breakage.