Medical Devices TRIZ Cases

Automated drive mechanisms rotate and translate a flexible cleaning cable to disintegrate obstructions, preventing sepsis risks from emergency catheter changes.

Segmented feedback paths enable precise pressure monitoring while reducing system complexity.

Internal flow restrictors in a stepped catheter equalize infusion rates, reducing backflow and system complexity.

A vibration-based device detects sleep apnea by analyzing breathing signals.

A microsurgical system manages aspiration pressure using a microprocessor feedback loop.

A dual material Y-connector combines a rigid plastic inner core with a pliable thermoplastic elastomer over-layer for secure fluid delivery.

A liquid cartridge uses a displaceable partition wall to separate gas and liquid within a pressure chamber for controlled discharge.

Merging dilation, vibration, and myofascial release into one device reduces the number of separate tools required for pelvic floor physical therapy.

A mounting cuff encircles the blood pump housing to secure attachment against the epicardium.

A motorized actuator locks an injector door until a controller confirms operational status.

Nested concentric lumens in medical-grade plastic tubing recirculate heating fluid to reduce convective heat loss and manufacturing costs.

A detection system monitors infusion pump motor pulse width modulation commands to verify cartridge presence during operation.

Segmented access ports with bioresorbable anchors and self-locking mechanisms simplify implantation procedures.

Merging pull wires with electrical conductors maintains navigability while ensuring reliable signal transmission.

Segmented catheter design prevents occlusions at the root region by combining a rigid proximal portion with a flexible distal segment.

Pivotable panels allow users with low dexterity to easily open the sterile urinary catheter container without compromising fluid leakage prevention.

A pen needle assembly uses a two-part hub construction to reduce material volume while maintaining sterility.

Concentric cylindrical shields protect RF coils from electromagnetic interference, enabling affordable hydrocephalus diagnosis without radiation exposure.

A sensor-controlled nasal aspirator uses distance detection to automatically trigger the air pump for suction.

A gravity infusion control system uses a mass change sensor and drop detector to monitor fluid administration.

A sheet mask device integrates an electrode unit and a liquid-activated battery to generate microcurrents.

Segmented discharge lines and onboard gas cartridges prevent clogging from rapid viscosity increase while maintaining operator mobility.

Timing belts and planetary gears rotate the fluid separation chamber at double drive speed, reducing umbilicus stress while maintaining sterile integrity.

Decellularized heart scaffolds recellularized with neonatal myocytes restore contractility and vascularization, addressing donor organ scarcity.

Interlocking protrusion and groove connections replace threads to resolve the contradiction between secure sealing and convenient assembly.

A control unit restricts filling operations based on coupling detection to ensure accurate drug delivery.

Silicone sleeve with apertures monitors fluid levels while absorbing impact forces that break fragile glass cartridges.

A breath-actuated delivery device entrains medicaments as fine aerosol mists through a flow channel.

A dialysis treatment machine employs a stand-by mode where actuators periodically relieve pressure on the flexible cassette film.

A skin-securable dispensing patch unit incorporates a mechanism for enhancing insulin absorption by promoting vasodilation through local heating.

A vacuum chamber with a snap fit plunger mechanism clears dependent loops to prevent bacterial pooling and catheter-associated urinary tract infections.

Segmenting the anchor from the device allows atraumatic explantation while maintaining vessel wall stability.

Ultrasonic and weight sensors detect liquid level without contact, preventing contamination during infusion.

Segmented infusion pump housing accepts interchangeable baseplates to resolve size versus flexibility trade-offs while enabling precise medicament delivery.

A wound therapy device positions a connector distally from the port hole to improve patient access.

An angled joint member stabilizes the limb against flexion to prevent peripheral intravenous catheter displacement.

A wearable infusion band carries a liquid medicament reservoir and pump that drives fluid through a piercing member into skin tissue.

A redesigned inhalator uses a separate hinge system to detach the mouthpiece from the internal assembly for maintenance.

Pulsed liquid delivery treats larger tumor volumes in shorter times while preventing heat diffusion to healthy tissues.

A hearing device detects user movement and predicts step timing to generate tailored acoustic cues for gait stabilization.

One-way valves prevent cross-contamination while the counterbalance system keeps the tip hygienic, reducing physical struggle during infant care.

Helical medical tubing adheres via localized solvent bonding to prevent snagging hazards while enabling quick emergency deployment.

Elastic clamp mechanism prevents gravity-induced free flow when the ambulatory pump is inactive, ensuring controlled delivery.

Hydraulic actuators amplify small movements into large cable travel, resolving high force requirements and poor tip stability.

An implantable device monitors respiratory rate via ultrasound or photoplethysmography to trigger automatic medication release.

A capacitive sensor detects blood volume in a reservoir by measuring electrical signals between spaced electrodes.

A tattoo machine ink reservoir structure integrates pneumatic pumps and check valves to deliver ink from cartridges directly to the needle.

A patient hydration system monitors infusion pump history and fluid source weight to maintain precise net fluid balance.

A medical pump queries clinicians to flush fluid lines after infusion, tracking volumes accurately.

An indexing wheel advances a blister strip in a dry powder inhaler, resolving the contradiction between dosing precision and device complexity.