Infusion Syringes TRIZ Cases

Enlarged opening reduces flow resistance during high-viscosity medication withdrawal, minimizing time and equipment failure.

An elastic member moves a base cover and guide pin to open a fluid channel, reducing skin irritation from solid needles.

A pressure actuated seal element deforms to close a catheter lumen when fluid pressure is applied, enabling hands-free operation.

A syringe assembly design nests the plunger rod inside the barrel to reduce storage volume.

Segmented syringe chambers and an intermediary valve prevent air contamination and dangerous CO2 flooding during continuous medical fluid administration.

Segmenting the fluid pathway into disposable channels within a reusable body reduces material waste and cross-contamination risks.

Inkjet printing deposits UV-fluorescent security ink on moving pharmaceutical containers for rapid, secure identification.

A collapsible core enables two-step injection molding for thin-walled pharmaceutical containers.

A syringe bung and seal plate create negative pressure to stop fluid dripping.

A dynamic inflatable port bladder adjusts volume to resolve the trade-off between minimal incision size and reliable palpation.

Integral adhesive pad on hemostasis valve replaces sutures, reducing procedure time and infection risk while maintaining secure attachment.

A syringe design featuring a separate suction flow passage that bypasses the injection needle to enable smoother liquid medicine intake.

A sensor assembly couples to drug delivery devices to detect injection status via an internal switch mechanism.

A friction fit coupling mechanism enables axial shifts and relative rotation within a medication delivery device housing.

Flat indicia on the finger flange resolve readability issues caused by needle shields obscuring barrel markings.

Intravesical instillation of oxybutynin reduces detrusor pressure while avoiding systemic side effects from oral dosing.

Segmented syringe design eliminates dead space to minimize expensive liquid waste during dermis auto-regeneration.

A dual-dose syringe system uses a plunger with cross bars and a spring-loaded barb to secure dosage positions.

A compact injector uses a rotatable inner member and sliding outer cover to shield the needle tip during operation.

A disinfection cap uses a depressible open cell foam structure to release antimicrobial fluid onto the luer connector hub.

Segmented snap luer connectors reduce assembly time and manufacturing costs while maintaining fluid integrity under pressure.

Reusable controller detects fluid path blockages via light reflection changes in disposable pump components.

A priming configuration uses a movable element to advance a piston rod within a drug delivery device.

Threaded piston rod arrangement positions drive member to eliminate clearance between rod and bung, ensuring accurate first dose delivery without priming steps.

Large-bore syringe adapter connects to pistol-grip barrels, reducing withdrawal force and breakage risk for viscous medications.

Gear-driven coupling links two syringes to synchronize plunger motion, eliminating manual coordination errors during medical procedures.

Segmenting the barrier film from the administration assembly resolves manufacturing complexity while maintaining superior hermetic sealing.

An adjustable needle member modifies the effective needle length to resolve conflicts between multi-use vial access and precise intradermal injection depth.

An intelligent syringe integrates detection electrodes to measure tissue impedance, enabling precise needle tip positioning without manual judgment errors.

Nested receptacle design preserves catheters in liquid medium, reducing X-ray exposure during arteriography procedures.

A solid needle body features a resilient section that yields under compressive stress to improve skin penetration.

Optimized N-MXD6 polyamide resin prevents blushing during heat sterilization, maintaining transparency and gas barrier reliability.

A syringe safety device employs a tilting locking element that engages the plunger to prevent sealing plug migration caused by pressure loss during transport.

A syringe container uses a tapered through-hole to guide extraction without raising the holding section.

Embedded electromagnetic indicator coils detect instrument configuration via field monitoring, eliminating fluoroscopy and X-ray irradiation exposure.

A cam profiled lever mechanism transforms lateral finger force into longitudinal pump compression to deliver metered fluid doses.

A needle insertion assistance device stabilizes syringe handling and prevents unintentional forward advancement of the needle.

Removable extended finger flange increases grip surface area on syringe needle guards.

A hemostatic valve seal uses shape memory polymer to self-configuring from an open state at room temperature to a closed configuration at body temperature.

A positive displacement syringe uses a detent mechanism to drive fluid through the catheter tip.

Segmented piston rod legs fold along the container body to reduce overall device volume while maintaining rigid shaft integrity.

An integrated needle guard combines a spring and protective sleeve into one molded part, reducing assembly costs while ensuring automatic needle retraction.

Coupling nubbins score the inside face of helical grooves to deepen them, preventing loosening under aggressive medical manipulation.

Applying a cross-linked silicone layer to the tip cover inner surface lowers pull-out force by 35% while maintaining container closure integrity.

A syringe plunger rod uses grooved engagement members to generate tactile clicks during injection.

Freeze dried paste stored in a syringe eliminates mechanical mixing, ensuring sterile and consistent haemostatic preparation.

Interconnectable piston segments and mechanical spring drive eliminate battery dependency while reducing device bulk.

A hydrophobic filter cap seals a syringe barrel while allowing gas passage.

A rotatable inner aspiration needle adjusts depth within a stationary outer cannula to sample bone marrow from multiple cavity positions.

A drug delivery kit uses a temperature-sensitive hydrogel to transition from liquid to gel at body temperature for in vivo administration.