Medical Devices TRIZ Cases

A manifold distributes suction to multiple canisters through rigid connectors.

Syringe cap alignment members guide pressure jacket insertion using resiliently deflectable retaining members.

Low-conduction shell walls stabilize temperature inside the cavity, preventing bacterial growth without complex fluid systems.

A Barrier Band creates a protective tunnel between skin and vascular access devices using adjustable elastic materials.

Axial tension holds the filter against a deformable seal to compensate for dimensional tolerances and ensure reliable fluid collection.

A tapered catheter site insertion plug with a foam base prevents fluid leakage and infection risk at the puncture site.

A hydrogen delivery patch uses segmented chemical compartments to generate molecular hydrogen for targeted skin application.

Segmented suction channels reduce pressure loss in compressed air, enabling efficient aerosol generation with smaller compressors.

A dual entry port vascular access device with self-sealing valves enables simultaneous insertion of two large-bore medical instruments.

A needleless connector integrates dissimilar zinc and silver electrodes to form a galvanic cell that generates an electric field.

A wound connector integrates a sensing probe to monitor fluid pressure at the tissue site.

Mechanical actuating element applies periodic movement to temperature-controlled product, reducing thawing times by 30 percent through direct contact.

An implantable infusion device injects erection stimulants directly into the corpora cavernosa using a dedicated reservoir.

Positioning the flow rate reduction module upstream minimizes unnecessary hazardous liquid injection and reduces leakage risk during disposal.

A microfluidic piston pump delivers precise medication volumes using integrated check valves and a resilient arm mechanism.

Segmented side openings and porous membranes maintain high medication concentration at target sites while minimizing systemic loss.

An electronic artificial candle uses ultrasonic vibration to atomize essential oils for wide-spread fragrance dispersal without heat.

Magnetic field interaction between plunger and wiper magnets measures contrast media volume to prevent systemic toxicity.

An infusion pump measures IV tube wall thickness using encoder pulse counts and pressure sensors to adjust pumping parameters.

Merging pre and post infusion lines into a single T-connector reduces setup time and eliminates cross-contamination risks in extracorporeal blood treatment.

A rotational biasing member drives needle insertion in a drug delivery pump housing.

An internal lead screw advances a plunger inside a fluid reservoir, minimizing device size while maintaining accurate insulin dispensing.

A connector cap with a safety locking mechanism requiring downward force and counter-clockwise rotation to secure the device.

Integrated illumination arrangement synchronizes with treatment steps to resolve device complexity while improving visibility at the piercing site.

Segmented toroidal conduits prevent stagnant flow and localized overheating in rapid infusers during low-rate blood warming.

Capacitive sensing electrodes detect fill volume in flexible drug reservoirs without restricting fluid flow.

A wound dressing manifold distributes hyperoxic fluid and negative pressure through a single interface layer.

Fusing acoustic, force, and pressure sensor data reduces false alarms from micro-bubbles and variable pressures, improving detection accuracy.

External syringe mounting and a hollow threaded rod eliminate protective bellows, reducing structural complexity in portable infusion devices.

Dual pressure sensors in a medical injection unit detect fluid state changes to confirm accurate tumor targeting.

Staggered barbed ports create helical flux to improve harvesting speed while reducing tissue trauma.

Constant curvature guides the carrier between deflectors, resolving complexity issues in compact inhaler designs.

Annular protrusions engage a recessed barrel groove to compress a packing seal, preventing liquid leakage and nozzle displacement under pressure.

An analog control circuit prevents pump motor stalling during negative pressure wound therapy by generating override signals from sensor feedback.

An antimicrobial coating on a vascular catheter provides targeted protection while increasing effective diameter to prevent kinking and maintain fluid flow.

Segmented eluting coils deliver precise drug concentrations locally to minimize systemic side effects while enabling post-treatment retrieval.

Mechanical pump with cam surfaces and springs delivers insulin without electronics, reducing complexity while maintaining dosing precision.

A spring-loaded electrical contact sensor detects fluid path establishment in parenteral delivery devices to automate adherence tracking.

A hydrophobic drip chamber interior surface repels liquid droplets to maintain optical clarity.

Segmented evaporator insert applies capillary feedback to control temperature and eliminate leaks in diverse inhaler geometries.

An electroosmotic pump replaces mechanical motors in a portable infusion device, enabling precise low-flow control without bulky components.

An IMC-PID controller with personalized insulin feedback adjusts aggressiveness based on individual sensitivity to maintain euglycemia without hypoglycemia.

A fluid delivery device normalizes loaded motor current data against unloaded measurements to isolate pressure signals.

A microdermabrasion tip with abrasive elements selectively removes skin layers, delivering active ingredients deeper than passive migration allows.

A gas adjusting belt slides around a bracket to modify the overlapping area between inlets.

A portable insertion device uses mechanical linkages to extend and retract separate needles for concurrent insulin cannula and glucose sensor implantation.

Perforated core tube directs air bubbles to outer shell lumen, preventing retrograde entrainment into venous circulation.

Integrating fluid channels into the patch pump base eliminates separate tubing, reducing device complexity and minimizing leak risks during medicament delivery.

Integrating a negative pressure manifold into an implantable interbody device eliminates dislodgment risks and invasive reattachment procedures.

A binaural induction system varies the frequency difference between left and right ear sound waves over time to produce specific neural activity patterns.