Infusion Devices TRIZ Cases

Asymmetric holding sections secure the elastic valve body against positional drift, ensuring reliable sealing performance across repeated attachment cycles.

Malleable filaments retain flexible intravenous tubing in a custom shape, preventing entanglement and clutter while maintaining fluid communication.

A catheter pressure sensor positioned at the tube end detects liquid pressure to indicate patient blood pressure.

Braided tubular sleeve fastener prevents line displacement by locking a rigid collar with a resilient clip mechanism.

Segmented IV pole levels and angular hooks resolve label obscuration and line entanglement while maintaining device balance.

Spherical reservoir geometry and radiused septums eliminate angular junctions to prevent debris accumulation in implantable infusion ports.

Retention hooks on the piercing device prevent accidental separation from medical fluid bags, eliminating drug leakage risks and ensuring complete emptying.

Automated dialysis connection eliminates manual force and contamination risks by using rotating fingers to remove caps and drive spikes through membrane seals.

A subcutaneous injection port uses a septum contrast portion to reflect ultrasonic waves for clear puncture region visualization.

A selectively sealable male connector uses a movable sealing member to manage fluid pathways without disconnecting from female interfaces.

A medical valve resilient member transitions between closed and open modes to manage fluid flow paths.

Living hinges and a gear rack lock catheters, reducing micro-pistoning and infection risk.

A medical tube hub anchors multiple conduits to clothing via magnetic or clamp mechanisms, preventing dislodgment and infection risks during patient movement.

A hook and receptacle attachment system enables one-handed secure connection of medical devices to support structures.

An asymmetric stop mechanism in an enteral feeding connector prevents misconnections between dissimilar medical tubing systems.

A purge device uses a rotatable closure element to seal individual fluid flow channels during maintenance operations.

A bolus administration unit controls drug solution flow through dual passages and a reservoir to enable direct dispensing.

A fluid infusion apparatus automatically calculates occlusion pressure thresholds using processor-based parameter analysis.

Distinctive male connector geometry prevents incorrect infusion line branching by blocking incompatible female ports.

Quarter-turn rotation breaks the frangible block and penetrates the flexible seal, resolving incomplete connection risks for users with limited hand strength.

Single-piece molded elastomeric clamp reduces surface area for easier decontamination while maintaining secure attachment to IV poles.

A self-closing aseptic connector uses a biased closure and piercing member to maintain sterility during fluid transfer.

Integrated drip chamber check valve manages fluid pressure pulses, preventing unintended primary flow and ensuring accurate secondary medication delivery.

Curved spike and nested anchor reduce piercing force while preventing accidental disconnection during drug transfer.

A single pump system alternates between negative-pressure intervals and venting intervals to deliver controlled instillation fluid.

A skull implant medication injection port uses a rib structure to secure the device within the cranium.

An axial liquid co-infusion valve moves an operating part within a cylindrical chamber to switch branch tube channels without protruding from the surface.

Asymmetric connector configurations prevent mating with standard luer fittings, eliminating incorrect medicament infusion risks.

A spring-loaded stop pad on an IV pole stand locks wheels via foot pressure, preventing tipping and freeing hands for medical tasks.