Infusion Syringes TRIZ Cases

A low-surface-energy barrel coating and rigid plunger design reduce stick-slip, speed start-up, and improve low-flow infusion accuracy.

Force concentrators and microgrooved polymer barriers move syringe stoppers through lubricant-free tubes while limiting distortion and leakage.

A moisture-crosslinking silicone coating cuts syringe break loose force and stiction while resisting migration, aging, and sterilization.

An integrated rotating cap with a disinfectant pad disinfects vascular access devices during flushing, improving aseptic compliance with fewer steps.

Pre-marked stair-step dose indicators map patient height to liquid medicine doses, cutting calculation steps and dosing errors in emergencies.

A rigid outer cap with an elastomeric inner cap improves syringe tip sealing, limits contamination, and avoids sticking during removal.

Force-responsive sealing elements adapt needle depth to scleral resistance, enabling precise suprachoroidal drug delivery with less retinal risk.

Fluid momentum and resonance create pulsatile catheter flushing from steady plunger force, reducing clinician effort and device complexity.

Visible, audible, and tactile indicators show when injection is complete, preventing underdosing and enabling safe needle retraction.

Injectable collagen particles self-assemble into a scaffold, enabling tissue repair in confined synovial joints where scaffold placement is difficult.

Collagen slurry implants use self-assembled particles and catheter delivery to stabilize healing and placement in confined synovial repair sites.

Alternating dual pump modules with recirculation maintain accurate multi-fluid pressure and flow despite viscosity changes and implanted device limits.

Support ribs, chamber ratio control, and stopper sealing improve two-chamber syringe mixing while reducing leakage during rapid plunger movement.

Self-assembling collagen slurry implants create an injectable scaffold for synovial tissue repair where fibrin clot healing is limited.

Self-assembling collagen slurry creates injectable implants that support ACL, meniscus, and rotator cuff repair while limiting joint stiffness.

Self-assembling collagen slurry implants create an injectable scaffold for synovial joint repair where fibrin clot formation is blocked.

Self-assembling collagen slurry forms an injectable scaffold that supports tissue repair in synovial joints where fibrin clot healing fails.

A slidable cannula adapter guides catheter motion and viscoelastic dispensing to cover Schlemm's canal in one pass with fewer instruments.

Agitating each medication container during multi-step inspection improves defect visibility while keeping small-batch systems compact and affordable.

Reduced wall thickness, diameter, and form factor cut syringe glass use and waste while preserving barrel strength for low-dose filling.

Airflow portions in a syringe barrel grip let sterilization gas reach covered barrel surfaces while keeping the grip firmly attached.

Tribological additives in fiber-reinforced polyester cut friction, wear, noise, and degradation while preserving tensile strength.

Horizontal syringe loading and a polymeric plunger tip help deliver viscous cell suspensions with less clogging, shear stress, and cell damage.

An adapter lets one medicament carrier securely hold different container sizes, preserving visual access and reducing separate device needs.

A valve-separated multi-chamber syringe delivers flush and medical fluids in sequence, cutting VAD reconnections and contamination risk.

A pressing member spreads needle tips after insertion to form an expansion hole, widening intradermal drug delivery without sacrificing easy entry.

A side-mounted plunger rod keeps the prefilled syringe compact, cutting packaging space and lowering sterilization, shipping, and storage costs.

Pre-labeled dosing devices with color-coded volumetric zones simplify pediatric emergency drug selection and dosing while reducing calculation errors.

A rotatable, slidable locking cylinder keeps syringe dose settings from shifting under flange pressure, improving dosing accuracy.

An integrated retainer finger reinforces the Luer lock to stop needle detachment under viscous, high-pressure injection and enable safer replacement.

A retaining ring with a tapered surface and insertion indicator secures infusion bag connection while reducing insertion force and leakage.

Parallel conditioned and bypass flowpaths reduce preservative exposure, inflammation, and scarring to extend infusion site viability.

Separate fluid pathways and closely spaced exits let two agents be infused through one microneedle without premature mixing.

A plunger-formed pathway lets sterilizing agent reach the stopper interface while a backstop limits pressure-driven movement and contamination.

Color-coded dosing segments on a syringe holder replace complex weight-based calculations to speed accurate drug administration in emergencies.

A disengageable barrel-plunger ratchet gives tactile dosing feedback during injection while allowing easy refill without suck-back waste.

A rotating lock secures syringe fins inside a radiation shield, improving stability and reducing operator exposure during filling and transport.

Coarse double-lead threads and a stepped hub cavity prevent needle detachment during high-pressure injection of viscous dermal fillers.

An optical halo formed through a translucent plunger helps verify full syringe fill, detect air, and distinguish fluids under low light.

Color-coded dosing segments on a syringe holder replace weight-based calculations, helping clinicians verify pediatric doses quickly and accurately.

Electronic linking of medication and flush orders lets a syringe pump calculate remaining dose and switch syringes without manual reprogramming.

Alternating two delivery chambers maintains high-pressure viscous fluid injection while reducing hand strain and refill delays.

An RFID-enabled needle shield stores and retrieves lifecycle data from assembly to use, improving traceability and quality control for medicament containers.

A spring-driven sensor carriage scans plunger position and reservoir volume automatically for more consistent dose measurement.

A dual-reservoir static mixer prepares precise microneedle doses, making transdermal injection safer and easier for non-expert users.

Plasma, gas discharge, or ozone treatment raises glass surface energy so syringe pistons slide smoothly without silicone contamination.

A rotatable swing spacer limits plunger travel to deliver precise microliter doses while reducing waste with reusable syringe components.

A PEG-gelatin sulfated glycosaminoglycan hydrogel modulates inflammation and fibrosis to support bone regeneration in compromised wounds.

Machine-readable markings on the syringe or needle shield identify the medicament after assembly, reducing mix-ups, waste, and added complexity.