Ampoule Syringes TRIZ Cases

Nested telescopic plunger segments minimize axial stroke length while maintaining multi-stage mixing and dosing capabilities.

A medical injection device with a needle cover that moves between storage, injection, and safety positions.

A dose indicator uses axial displacement to rotate a tens wheel, enabling precise medicament delivery.

A medicament injection device cap assembly moves an inner needle part to displace a needle carrier axially for sterile insertion.

Flat conductive electrodes in a separate cap apply an electrical field across the insulin pen reservoir to measure capacitance and prevent overdosing errors.

A plunger-less syringe uses a flexible reservoir for self-administration and a spring cover to prevent accidental needle pricks.

A rotatable member with a helical guide track converts linear needle sleeve motion into rotational locking to control piston rod actuation.

A two-chamber injector transfers fluid to mix settled particulate drug constituents, preventing needle clogging and ensuring reliable self-administration.

A syringe locking mechanism integrates a protective sheath and handle retaining elements to ensure secure engagement.

A medicament delivery device uses a spring-biased drive member and a locking unit to secure the mechanism.

Intermediate structure guides flexible support elements outwardly to maintain secure medicament container holding.

Dual bias forces in a drug delivery needle unit sequence insertion before reservoir connection, preventing body fluid contamination.

A liquid dispensing system uses a hinged septum and sliding piston to deliver precise oral medicine doses from a hollow cartridge.

Resilient arms on the connector snap onto the support, reducing storage volume while preventing contamination risks.

A circuit board routes medicament flow around electronics while a flow sensor monitors usage, preventing needle reuse and maintaining sterility.

A programmable electro-mechanical drug delivery device uses a microprocessor to calculate and administer multiple medicaments through a single interface.

Light-sensitive ink on a drug delivery piston rod changes color via photochromism to resolve dosage tracking information loss.

Segmenting the device into standardized drive and syringe modules reduces component variability while accommodating varying drug viscosities.

Threaded engagement prevents accidental axial movement during storage while rotation initiates controlled mixing of freeze-dried medicament with liquid.

Segmenting the drive mechanism from the disposable cartridge reduces waste while dynamic user input prevents accidental actuation.

A coaxial medicament delivery device uses a needle shroud removal to release a mixing element for automatic reconstitution.

A dual-housing injection device uses a cam mechanism to control plunger rod movement and ensure complete medicament mixing before activation.

A pre-filled syringe opening system uses a movable connecting means to keep the needle separate from the medicament until use.

An integrated cannula eliminates separate draw needles to prevent sterility loss and needle stick injuries during vial access.

Segmented clutch features allow drive member rotation when the cartridge holder detaches, reducing user force for dose dispensing.

A cartridge holder uses a bearing element and tensioning member to transfer injection force directly to the housing.

Segmenting the joining member prevents distal deformation during heat-welding, ensuring secure attachment without cracking.

Asymmetric interference elements prevent rotation during insertion, ensuring precise cartridge alignment for reliable pharmaceutical dispensing.

A safety syringe uses a rotational mechanism to deploy a protective sheath over the needle during plunger actuation.

An imaging arrangement captures dosage window numbers on an injection device to identify the set dose value.

An insert cartridge controls active agent release via porosity and coating layers to extend catheter patency duration.

A syringe uses a vacuum chamber and slidable membrane to automatically mix substances via axial plunger displacement.

Separate triggers enable autoreconstitution then dose setting, preventing operation failure from single-button activation.

Segmenting the opening area with a reducing piece prevents accidental pricking, while merging a holding member with the holder ensures container stability.

An annular groove in the carrier body engages a circlip within the gap between the syringe barrel and needle shield, eliminating separate assembly steps.

A communication unit switch activates via a balanced force mechanism between drive and activation elements.

A syringe cover with a pivoting lid provides lateral access to the housing cavity, resolving mounting complexity and enabling universal syringe compatibility.

A cartridge assembly uses a fixing member to permanently secure the drug container within the holder.

Segmenting the cap into frangible portions via annular breaking lines provides reliable tamper evidence without increasing manufacturing complexity.

Injection molding creates an integrated ejection device that eliminates complex cleaning and reduces manufacturing costs.

Separate reservoirs in a medicated module enable variable dosing of multiple agents through one interface, resolving fixed-ratio limitations.

Retaining struts prevent axial displacement and septum expansion during dispensing, eliminating post-dispensing fluid pressure.

A pump device uses flexible bladders in variable-size compartments to expel or draw fluids through a common port.

Adjusting assembly with radial spikes locks piston and rod to eliminate axial clearance in drug delivery devices.

A nested cartridge system drives relative container movement to displace diluent into a medicament chamber for automatic mixing.

A medicament delivery device uses a manually actuated power assembly to pressurize a multi-chamber container for mixing and delivering blended compounds.

An injection device dose indicator employs a shuttle lock to selectively engage a tens wheel, preventing unintended rotation and resolving grip interference.

Threaded engagement between an encoded member and a rod converts axial displacement into rotation, eliminating false logging from manufacturing tolerances.

Mechanical timer tracks administration time without electronics, reducing manufacturing cost and electronic waste.