Medical Devices TRIZ Cases

Segmented liquid passages route fluid away from the absorbent area, reducing bulk while preventing leakage during active movement.

A magnetic-field transducer generates a time-varying field to power an implantable electronic device via inductive coupling.

A medical fluid injection device automatically supplies pressurizing units with fluid using operational state information to determine replenishment needs.

Liquid drive component conveys tobacco liquid to the heating element, resolving inconsistent aerosol production from uncontrolled volume delivery.

A medical waste manifold uses a flow diverter and porous filter to direct fluid through the housing.

A static fluid conduit transmits pressure from an insufflated vessel to an external sensor for precise monitoring.

Segmenting the reusable drive from the disposable reservoir reduces long-term costs while maintaining system reliability.

Virtual reality headsets deliver familiarizing stimuli to pediatric patients, reducing anxiety and minimizing anesthetic requirements during medical procedures.

A pressure control system integrates a touch screen with an industrial computer to manage multiple output channels.

A superabsorbent polymer flat material section absorbs wound fluids into a gel mass within the container.

A fibrous exudate conduit wicks wound fluids via capillary action, reducing pressure points on the wound surface.

A digestive tract patency capsule uses a color-changing indicator to assess intestinal health before endoscopy.

Dual fixation sections secure the infusion tube flange to resolve misalignment errors and improve droplet detection accuracy.

An inhaler actuator aligns the orifice axis with the valve stem to direct aerosol flow through the mouthpiece.

An independent fluid exchange device automates CAPD measurements via electronic sensors, resolving manual monitoring errors while preserving patient mobility.

A platform integrated circuit uses segmentation to share common components across multiple medical devices.

An iontophoresis electrode pad applies an insulating film between the medicament reservoir and skin to prevent high current density areas that cause irritation.

A urinary catheter assembly incorporates a thin, flexible protective sleeve tip that conforms to the proximal insertion end.

An integrated electroporation system uses a middle connector and cradle to fixate the needle, reducing tangled lines and improving operator mobility.

A partial counter tracks nebulizer uses via piston motion to prevent dosage errors from forgotten treatments.

Flocking creates a perpendicular fiber layer that resists tissue ingrowth while enabling efficient fluid removal during negative-pressure therapy.

A pressure sensor placed inline within a medication infusion fluid path measures real-time pressure pulses to identify blockages.

Segmenting the pump into a reusable unit and disposable containers resolves mobility constraints while maintaining negative pressure for healing.

Segmented infusion modules prevent protein blockages and crystallization through dynamic catheter positioning, ensuring reliable insulin delivery.

Nested packaging maintains catheter hydration for three years while peelable closures enable contamination-free removal.

Angled protruding support surface controls elastic valve expansion to generate positive pressure and prevent blood backflow upon extraction.

A light system uses pulsed blue and red sources to modulate circadian rhythms and increase vigilance.

A helical track with segmented types induces distinct sensor responses to determine drug dose amounts in pen-type injection devices.

A catheter hub assembly uses a telescoping elongate member to connect proximal and distal components for longitudinal translation.

Elastic sheets link the atomizing module to the battery base, enabling quick core replacement while sealing elements prevent e-liquid leakage during refilling.

Low-frequency excitation signals drive the coil to produce an oscillating magnetic field, distinguishing the signal from static interference.

A pump speed correction algorithm estimates wound site pressure using sensor data and a modification constant.

Appliance links electromagnetic spectrum sensor with cannula via spaced fitting to detect perivascular infiltration using near-infrared signals.

A portable medical device uses a paired mobile phone to determine geographical position for server-side environmental assessment.

Magnetic feedback tracks contrast media delivery to prevent systemic toxicity and ensure precise dosing.

Piercing a hermetic container releases liquid onto wicking material, eliminating complex mechanical vaporization mechanisms.

Microprocessor-controlled gas insufflator adjusts pressure via user-selectable configurations to overcome obstructions while preventing patient discomfort.

Segmenting the reservoir into a large storage unit and a smaller dispensing chamber enables accurate metered dosing while maintaining device simplicity.

A guide needle pierces an elastic patch body to implant a sensor, creating a waterproof seal without thermal processing or ultrasonic welding.

Vibratory bowl feeders orient bulk gastric residence systems to replace manual handling, enabling high-speed compaction and encapsulation.

A vent device with a valve opener and gas-permeable vent actively expels trapped air from vascular access assemblies.

A vaginal delivery system uses high internal phase emulsions to adhere to mucosal surfaces and release active agents.

An integrated check valve within the movable sealing device prevents backflow, eliminating separate safety components and reducing system complexity.

An asymmetric resonance actuator drives a lancing device through a non-evaporating liquid seal to minimize mechanical resistance while maintaining hygiene.

A polyurethane bilayer with wedge-shaped foam strips applies negative vacuum pressure to the bowel surface.

Segmented pumping chambers resolve the contradiction between low flow accuracy and high maximum capability in IV pumps.

Motion sensors detect patient activity levels to adjust insulin delivery algorithms in artificial pancreas systems.

A medical connector employs an elastic valve with a slit that rotates to open, preventing liquid accumulation and bacterial contamination in the fluid path.

A nasal delivery device uses a propellant-driven diffuser to direct compounds toward the olfactory region.