Infusion Syringes TRIZ Cases

Segmented gas chambers with intermediary vents relieve vacuum pressure to ensure proper septum operability and reduce infection risks.

Segmented components enable sterilizable vacuum stoppering of medical containers, resolving the conflict between sterility and operational flexibility.

A shielding needle assembly uses a pivoting skin sensor lever to maintain the cannula exposed until removal triggers automatic retraction.

Segmented base and rotating hub allow single-handed reorientation of the tubing set without removing the cannula from the patient.

Segmented shell with hinge mechanism encloses pre-filled syringes, reducing storage footprint while maintaining protection against accidental piercing.

A drug delivery cap uses rigid orientation features and flexible snap features to ensure correct assembly.

An angled bump geometry reduces activation force variability, ensuring consistent needle cover movement for safer user operation.

An annular receptacle with a base fulcrum distributes stress during connection, preventing breakage from over-tightening medical fittings.

A rack and pinion mechanism converts dial rotation into precise plunger movement, resolving human error in low-volume dose delivery.

Deflecting arms on the plunger rod lock into the stopper to prevent reflux caused by spring-back forces during injection.

Dynamic stopper deformation lowers breakout force while maintaining an aseptic barrier against pathogens in medical syringe applications.

Force-fitted retention device prevents piston ejection during pressure filling, resolving reliability and complexity trade-offs.

A syringe sleeve retracts an injection needle via a coil spring to prevent accidental needle sticks during manual operation.

Segmented hooks release the needle seat upon slider movement, preventing accidental retraction and minimizing medicine loss.

Flexible inelastic pouch accommodates surgical drain evacuator volume changes while preventing backflow and reducing infection risk.

A two-component injection-molded plunger combines a hard core with a soft sealing layer to maintain contact against the syringe cylinder wall.

A syringe backstop secures the plunger via a skirt and extensions.

Wider needle adapter aligns flush with vial stopper to prevent clogging during short needle aspiration.

Ultrasonic transducer tracks plunger position to differentiate air shots from actual injections, ensuring accurate dosage recording.

Curved obturator tip designs distribute mechanical stress to reduce tissue trauma and recovery time while maintaining effective surgical penetration.

A disposable syringe uses a piston rod to house the needle and actuate the plunger.

A floating needle adapter establishes bidirectional fluid communication between a cartridge and vial via a movable locking mechanism.

Segmented pathways in this transfer device isolate volatile drugs from the atmosphere, preventing concentration errors and staff needle injuries.

A vented reflux collection syringe manages gastric fluid and gas in enteral feeding lines.

Pivoting hinged flange enables syringe compatibility with both metering pumps and gravity-feed systems while maintaining sterility.

An ensemble of partitioned sensor glucose models selects regional estimators to combine predicted values.

Threaded hole innermost portion diameter creates sealing pressure against syringe barrel to prevent liquid drug leakage.

A syringe piston integrates a proximal filter to trap toxic methyl methacrylate vapors during bone cement preparation.

A perforated hollow shaft swab disperses liquid solutions through absorbent material to deliver customized palliative care.

Radiation shielding members create uniform dose distribution to prevent polymer degradation and eluting issues during medical rubber product sterilization.

An intermediary coating layer on the vessel interior reduces polysorbate degradation, extending shelf-life while minimizing adverse reactions.

Radial scale panel projects from syringe barrel to present dose markings on a flat surface, resolving curvature distortion in low-volume insulin syringes.

A unitary compressible rubber component merges a needle shield and cap, featuring grip ridges for user handling.

Sealed syringe system with rotating blade crushes pills to eliminate medication loss and user exposure.

Boron nitride coatings replace silicone oil to prevent drug denaturation while maintaining smooth injection.

A medical tube set uses a movable expansion member to radially expand the distal end for stylet insertion.

Separating monitoring circuits into an auxiliary device reduces injection complexity while maintaining precise dose tracking.

Segmented crosslinking of distinct molecular weight hyaluronic acid chains extends in vivo residence time while maintaining process controllability.

Multi-tool injection molding integrates a closure element onto a syringe body, eliminating separate mounting steps and reducing contamination risks.

A hollow body inlet conduit generates a sealed pilot sample pouch within the storage chamber to maintain consistent conditions.

Replacing mechanical balloons with an electrically expandable element secures gastric access while eliminating rupture risks from over-inflation.

Removable puller clips on a segmented piston rod constrain stroke length for precise dosing while preventing unintentional operation.

A plasma concentrator uses desiccating beads to absorb water from blood samples.

A locking device secures a syringe plunger rod inside a chamber to prevent withdrawal after injection.

Three switch devices including reed contacts detect syringe plunger positions to prevent inaccurate bolus interpretation.

A locking mechanism fixes the distance between the plunger flange and a sliding barrel loop, preventing over-extraction of medication.

A lubricating composition deposited on a support surface reduces friction during repeated injection needle penetrations.

Nesting an RFID tag inside an in-molded sleeve protects the electronics from steam and damage during sterilization while maintaining signal accessibility.

An annular chamber in a distal needle tip diffuses fluid flow through multiple egress points, preventing leakage before reaching the target site.