Automatic Syringes TRIZ Cases

Merges an auto-injector with a portable device case to prevent users from forgetting emergency medication while maintaining reliable access.

A wearable medication device uses a nested syringe and flexible tube to transport liquid through a rupturable seal.

Ramp controlled syringe rotation minimizes device diameter without sacrificing strength, reducing accidental triggering risks.

A low-waste syringe uses a frusto-conical tip and Luer-lock hub to secure the needle assembly.

Axial cam surfaces convert pulling force into radial grip to overcome frictional resistance in resilient needle sheaths.

A rotatable collar converts linear retraction force into torque via cam tracks and toothed beams to actuate the plunger.

Segmented tactile and audible feedback channels ensure complete dose recognition despite noisy environments.

An intermediary carry case with a motorized coupling member automates dose dial rotation, enabling accurate independent dosing for visually impaired patients.

Modular interface members allow torsion spring pre-straining outside the housing, resolving assembly complexity and visual access constraints.

Segmented springs eliminate plunger acceleration distance, preventing container breakage and user discomfort.

A resettable injection training device uses a retractable shield and biasing member to simulate needle insertion safely.

Front support reduces tension on the glass barrel, preventing breakage when delivering viscous medications through standard syringes.

A medicament delivery sub-assembly uses a radially flexible arm in the cap to restrict axial cover movement.

Optical sensors track the liquid-gas interface position within fluid chambers to calculate fill volume, preventing incomplete injections caused by user error.

Integrated push back element positions retainer legs for secure grip, eliminating separate pins and reducing device complexity.

A drive device uses a tensioning mechanism to retension a spring during advancement, maintaining constant pressure output.

Automated refill system uses pressure sensors and check valves to manage fluid pathways, reducing manual valve complexity and error risk.

Dual spring actuation mechanism automatically retracts needles to prevent patient injury while providing clear end-of-dose indication.

Damping features on ratchet teeth minimize audible noise during dose setting while maintaining tactile feedback required for reliable operation.

Dynamic window mechanisms conceal barcodes until injection finishes, ensuring reliable delivery confirmation.