Infusion Syringes TRIZ Cases

Segmented polydimethylsiloxane layers maintain gliding force while preventing biotech drug degradation and aggregation.

Concentration-specific syringe markings resolve confusion from varying drug levels, ensuring accurate measurement and reducing administration errors.

Ergonomic attachments with traction wheels and optical enhancements improve plunger control for precision low-dose syringe configurations.

An interrupted spiral design with staggered bridge members resists elongation while maintaining uniform flexibility across all bending planes.

Color-coded needle hub flange identifies insulin concentration and needle gauge, preventing incorrect dosage selection even with safety shields.

Deformable locking elements engage thread flanks to prevent loosening and leakage during long-term pharmaceutical storage.

A fluoropolymer-coated elastomeric stopper reduces friction within silicone-free medical injection barrels.

Segmented plunger jackets maintain open flow paths, resolving dead volume trade-offs during needle retraction.

A one-handed valve system merges multiple syringe connections into a single assembly for controlled medical fluid delivery.

Locking pins engage plunger grooves to select precise dosages, resolving accuracy versus complexity trade-offs for users with limited dexterity.

Segmented clip assemblies with angled frames resolve ergonomic contradictions by enabling precise one-handed medicament ejection control.

Segmenting the fluid delivery system into reusable and disposable parts reduces device bulk while maintaining precise insulin dosing.

Segmented housing with nested applicator cleans crevices in luer connectors, preventing infection from inadequate cleaning.

A dual syringe system integrates a percutaneous cannula to harvest cells directly into a closed barrel.

Nesting the plunger rod inside the barrel reduces storage volume while elastic deformation enables quick point-of-use assembly.

Nesting a spring sleeve inside the piston resolves space conflicts and prevents tilting for reliable needle locking.

A slittable cardiac delivery hub integrates a shaft and bypass channel to enable smooth lead navigation.

A snap-lock finger-grip device anchors to a syringe barrel flange while providing an anti-slip surface for improved operator handling.

Protrusions on the female syringe barrel advance over the male screw thread to limit torque, preventing barrel deformation and maintaining liquid tightness.

An elastic stopper prevents gasket displacement and damage by expanding within the syringe rear end.

Angled webs pivot under rotational torque to engage abutments, maximizing contact force and preventing detachment of the syringe or carpule.

A catheter clip with a hinged frame and inner gripping membrane secures vascular access devices during procedures.

A drug delivery sensor uses multi-purpose readings to determine its own condition, preventing inaccurate dosing from undetected degradation.

A manual injection device uses a movable reservoir and automatic sleeve to ensure safe needle penetration.

An optical detection system measures the position of a reflective stopper within a drug delivery reservoir to determine remaining medicament quantity.

Applying an ink layer before laser engraving prevents microcracks in glass substrates while producing high-contrast, readable codes.

Rotating the plunger selects unit-based graduations, eliminating manual volume conversions and calculation errors during botulinum toxin injections.

Pre-positioned stoppers constrain strut depth to prevent extravascular tissue damage during targeted agent delivery.

An asymmetric guide groove prevents unintended rotation during rod advancement, eliminating medicine waste from accidental discharge.

A dual chamber syringe uses a helical track on the plunger rod to convert rotational motion into axial displacement for piston movement.

A needle structure with a partitioning member separates injection and observation chambers to enable simultaneous filler delivery and blood backflow detection.

A syringe cap uses raised thread elements and compressible rubber to create a secure closure.

An intermediary shield with constant cross-section protects the guidewire tip from hub contact, reducing insertion force and maintaining puncture reliability.

A syringe stopper uses an activation mechanism to apply radial force to a perimetrical skirt for sealing.

A light guide conducts illumination to avoid reflections that hamper image capture and dosage tracking accuracy.

A hinged plunger rod collapses along the barrel exterior to minimize packaging footprint and shipping costs while maintaining injection functionality.

Segmented inlet covers and porous filters prevent contamination and tube clogging during enteral fluid administration.

An RFID or NFC label on a medication delivery device launches a mobile browser to verify authenticity and track possession, reducing counterfeit risks.

Segmented piston members resolve the sealing versus precision trade-off, reducing manufacturing costs while ensuring reliable medicament delivery.

A two-chamber syringe uses a latching mechanism to lock the second piston during filling, enabling sequential fluid delivery through a single barrel.

A locking actuator moves between non-actuating and actuating positions to control needle shield mobility during injection.

Replacing mechanical stops with an electronic system, the device tracks accumulated doses to alert users when set amounts exceed remaining supply.

Segmented glass and plastic components eliminate tungsten pin residue contamination while maintaining high diffusion resistance for stored substances.

An elastic balloon reservoir supplies liquid in zero gravity by contracting to push fluid, removing heavy motors and reducing device footprint.

An external safety device uses a compressed spring to drive a tip blocker over the needle, eliminating internal retaining rings that obstruct fluid flow.

Pre-attached antiseptic cap with ribbed distal chamber prevents reflux and infection risks by ensuring secure engagement without separate application steps.

A safe syringe needle seat uses a dynamic clamping mechanism for stable positioning and quick pullback.

Seamless collection jars eliminate sperm trapping while curved syringe tips prevent backflow, ensuring maximum transfer effectiveness.

A removable finger grip enables conventional filling equipment to handle flangeless containers without increasing the final device envelope.