Infusion Syringes TRIZ Cases

A chamfered bump on a tubular body guides the needle cover to shield injection needles, reducing activation force variability.

Segmenting the plunger into a hollow shank and retractable component resolves manufacturing precision issues while ensuring reliable needle retraction.

A bone graft injector uses a magnetically attractable plunger for precise placement and retrieval within deep body cavities.

Elongate flexible leaflets form a polygonal passage and seal along longitudinal sides, reducing friction during insertion.

A rotational ejection device uses a threaded rod and bolt to precisely dispense viscous medical pastes.

Movable retaining elements engage the syringe distal end to prevent radial expansion under high pressure, ensuring consistent fluid delivery volumes.

Composite annulus plugs block high-pressure backflow to retain mesenchymal stem cells and prevent osteophyte formation.

A syringe tip cap switches between two stable positions to seal the containment volume or expose it.

Separating the labeling station from clean room preparation reduces contamination risks while camera detection prevents marker scale obstruction.

Radial ribs enhance structural strength and retain fluid via capillary adhesion, eliminating drips during pressure jacket loading.

V-shaped exterior ramps on a syringe cap enable self-alignment during automatic filling, reducing manual handling errors.

Piston rod ratchet teeth enable dose setting while a stop member prevents accidental overdosing during delivery.

User equipment verifies drug delivery device compatibility and proximity to prevent unauthorized access and incorrect medicament application.

A syringe barrel features stepped inner structures that modulate piston sliding resistance to provide tactile feedback during injection.

A syringe hanging tag displays medication details on a flat surface, resolving readability issues caused by curved barrels.

A syringe push rod features a deformable stop flange that engages the needle seat.

A support catheter uses a single proximal lumen with axial ridges to store multiple devices, reducing fabrication complexity and profile.

Matching tapered transitions reduce insertion resistance and improve precision while threaded fixation stabilizes the instrument in bone.

Rotating collapsible tips cut the bone cement mixture at the fracture site, preventing leakage and eliminating mesh bag requirements.

A needle cover with a rough inner surface reduces pull-out force for easier removal.