Medical Devices TRIZ Cases

During first insertion, a guiding portion deforms the aerosol article so sensors can detect reuse and block operation or alert the user.

Learn how low-energy mechanical vibration tuned to intrinsic brain frequencies can synchronize neuronal firing without high-energy electromagnetic pulses.

Integrated fluid lines and a detachable coupler enable quick disposable tip changes without replacing reusable handpiece infrastructure.

An adjustable filter and equalizing line separate pure fat from liposuction aspirate while limiting tissue manipulation and preserving sterility.

A tapered housing hole centers a pen needle and supports perpendicular insertion, reducing skin dimpling, bruising, and inconsistent medication deposition.

Concentrated solids or liquids are diluted with purified water in one container to produce dialysate on demand, reducing storage and freezing concerns.

A nested laser fiber and suction lumen fragments kidney stones and removes particles in the ureter's limited space.

A removable top places the cannula for subcutaneous delivery, then detaches to support tubing-free use and reduce occlusion issues.

Dual pump units automate priming and fluid transfer between syringes and tubing, limiting excess delivery during IV infusion.

Continuous fluid streams navigate nasal anatomy to target the olfactory cleft or middle turbinate while limiting off-target deposition.

Keyed couplers restrict syringe and tubing connections by therapy route, reducing wrong-route errors with one pump.

Routine-based dosing helps type II diabetics receive timely insulin without precise carbohydrate matching or intensive daily tracking.

An axially guided holding element locks the coupling sleeve during dose setting, then releases it to reduce friction during dispensing.

A flexible ring expands for placement and contracts around the set, while a sealable fitting connects the tubing path.

A compliance chamber and feedback control smooth peristaltic pulsation while maintaining fluid pressure for surgical-site flow.

A disposable cassette uses pneumatic diaphragm pumping and pinch valves to simplify quiet dwell, fill, and drain cycles.

Dual compartments and a transformable hanger support varied placement, while covers manage fluid visibility for clinical privacy.

A living hinge lets healthcare workers pivot the needle shield closed one-handed, supporting secure protection during injection procedures.

Structured UV scattering limits catheter shading and supports continuous, uniform germ reduction at the skin puncture site.

Negative pressure draws urine into a canister, while one-way valves limit leakage and backflow before measured transfer to a collection bag.

Rounded sides, wings, and expanding anchors help portacatheters resist flipping and fit through smaller incisions without suturing.

Porous anchor regions promote cellular and vascular ingrowth to stabilize encapsulation devices and reduce micromotion in host tissue.

Steering wires from a distal pull ring work with a reinforcing braid to bend the catheter in two directions through tortuous anatomy.

Piezoelectric vibration and spring force stabilize ejector-plate contact to improve droplet consistency and limit surface deposition.

A fan-like polyurethane bilayer applies negative pressure through silicone tubing to remove fluid and reduce post-operative edema and ileus.

Paired electrodes concentrate therapeutic agents at perfusion-limited tissue while radiotherapy targets the same site.

Manual catheter testing can introduce operator errors; automated force sensing and visual inspection support consistent repeated bending evaluations.

The mouthpiece and actuating member lock the atomizer before use, preventing vibration-triggered activation, leakage, and unwanted movement.

An air pump, air bag, and pressure-release valve stabilize suction pressure for efficient mucus removal while protecting nasal tissue.

Inclined driver and guide surfaces let the take-up reel yield under excess tension, preserving blister alignment during winding.

Integrated sensors and a flexible display monitor wound conditions continuously while preserving the sealed healing environment.

A hollow-cylindrical wall part forms the aperture, improving capsule assembly, stability, and targeted release at mucous membranes.

Respiration sensing adjusts audio, visual, or tactile cues, then transitions to masking sounds when sleep is detected.

A coordinated insertion assembly places a cannula and sensor through one site, using a curved path to reduce interference and discomfort.

Optical detection of dressing type and canister presence lets the controller adjust pressure therapy across healing stages.

A modular ambulatory infusion pump uses trocar and core-pin seals for precise delivery with simpler disposable assemblies.

This case replaces complex actuators with localized heating that deforms a securing element and releases the biased cannula.

Reducing-agent activation functionalizes fluoropolymer surfaces while preserving device safety.

An expandable support changes catheter angle relative to skin, improving patency and blood draw during prolonged vascular dwell.

A built-in chamber diffuses disinfectant onto transfer set threads, reducing disposable caps, waste, and contamination risk.

Glucose trend analysis identifies nonactionable rescue conditions, limiting insulin delivery while autonomous infusion control continues.

A helical drive mechanism uses an axial blocking member to support flexible dose setting and reduce medicament waste.

A segmented gasket holder protects sealing surfaces while enabling stable retention and steam circulation during sterilization.

A fluid lumen and adhesive capsule help deliver hemostatic material consistently to deep gastrointestinal target sites.

A patch-mounted spring mechanism drives a cannula transcutaneously, reducing separate hardware and handling complexity.

A retrofit multi-canister module keeps negative-pressure therapy running during canister exchange while supporting pressure sensing.

This Huber needle case uses a sliding connector and cam-driven shield for one-handed withdrawal and reduced accidental prick risk.

A structural member reinforces the flexible ostomy conduit, helping prevent occlusion and leaks during bending or twisting.

UV scattering elements deliver uniform irradiation around catheter puncture sites.

A nested dual-cover assembly uses torsion forces and a trigger unit to prevent unintended opening exposure and contamination.