Medical Devices TRIZ Cases

An eye mask migraine device combines green light therapy with TENS technology for targeted relief.

An integrated drug infusion set joins a polyurethane catheter via ultraviolet curing to eliminate Teflon adhesion issues and ensure complete air removal.

Angled armature openings induce piston rotation during pumping strokes to distribute mechanical wear across the cylinder surface.

Rectangular cartridge prevents rolling while distal electrical contacts maintain stable connection during proximal mouth holding.

An intermediary damper isolates the load cell from accidental deflection forces and vibrations in the drain shell.

A flexible fluid collection bag with a circulative pathway and load-bearing component.

Illuminated backdrop provides contrast for barcode detection on transparent syringes, resolving decoding errors caused by low visual differentiation.

A wearable aromatherapy device emits targeted scents to cue positive behaviors via the limbic system.

Underpressure extraction moves fluid directly from the syringe to the patient, eliminating intermediate containers and reducing contamination risk.

A heart pump assembly employs a self-expanding securing device to form a retention flange, preventing ventricular wall damage during implantation.

A physiological temperature perfusion system maintains organ viability using nutrient-rich solutions.

Segmented cover sections with radial locators orient drug container pistons, preventing contamination during sterilization and filling.

A compact UV sterilizer kit uses an elliptical reflector to distribute radiation homogeneously across patient skin for effective disinfection.

A tapered elastomeric adapter prevents dangerous misconnections between enteral and intravenous lines through geometric asymmetry.

A controller calculates pump stroke volume using continuous optical volume signals to maintain fluid processing accuracy.

Rotating annular member compartments lift aluminum foil flaps via Venturi airflow to dispense metered dry powder doses.

A skin-mountable medical device adjusts tactile indicator vibration patterns based on detected body location to ensure reliable alert recognition.

An integrated wearable device uses an interposer to mount a micropump, reservoir, and needle while distributing medication through internal channels.

A wire lock spool secures pull wires via tensioned wrapping, eliminating soldering complexity and reprocessing damage.

A medicament delivery manifold uses an indexing wheel to advance carrier strips through a peeling mechanism that separates sealing layers.

A rotary tattoo machine uses a motor-driven cam to actuate the needle arm.

A shoe insole negative pressure wound therapy system generates vacuum through walking motion using a collapsible bulb and valves.

Silicone oil and thickener coatings prevent gamma-induced crosslinking that closes elastomer slits, maintaining transparency.

Adjustable elastic straps secure a silicone pad that distributes impact force, reducing pain and injury risks during physical activity.

Segmenting the bridge into independent pathways resolves complexity while improving pressure distribution for wound healing.

A droplet delivery device uses an accelerometer to verify sufficient shaking for proper suspension mixing before ejection.

Magnetic gradients drive the actuator for gradual payload release, resolving limited tissue penetration and control.

Overmolded polymeric members join connectors and conduits, ensuring fluid-tight seals without complex assembly steps.

A processor adjusts blood glucose reference sample timing using continuous sensor data to optimize measurement frequency.

A subcutaneous access port incorporates unique color coding and asymmetric geometric features for reliable post-implant identification.

A heated fluid ablation cassette uses an impeller to circulate therapeutic agents through a uterine delivery lumen.

Thermal expansion drives drug displacement in a flexible patch pump, reducing bulk and improving wearability.

High-frequency acoustic sensors detect phase delays in infusion fluid to measure volumetric flow rate.

A flexible substrate wraps around a catheter distal end to integrate electrical devices and irrigation channels within a compact volume.

Replacing mechanical encoders, this syringe pump drive system measures pushrod position through resistive sheet contact, eliminating transmission errors.

An integrated stop mechanism limits axial actuator travel to prevent incorrect dosing while a spring biases the actuator distally to indicate device emptiness.

A spring-loaded wedge biases the reservoir opposite fluid flow to prevent occlusions and enable pressure buildup detection.

A pre-aligned acoustic sensor and flow director vane in the pump cassette improve measurement precision while reducing false alarms from tubing misloading.

A flow selector alignment system uses a cover and knob mechanism to ensure precise positioning of the flow rate selection.

Segmented needle shells and nested carriers reduce procedural time while enabling serial implantation at various depths.

A headset adjusts background audio filtering based on user acceptance levels to support auditory attention development.

Elastic spring biases a device shield to cover syringe needles, preventing content obscuration during inspection.

Compressed gas releases after a set interval to aerosolize medication, preventing wasted inhalation and improving lung delivery.

An integrated check valve with an elastic element limits unintended primary fluid flow during secondary infusion, improving delivery accuracy.

Segmenting adhesive application preserves inner member structural integrity during subatmospheric fluid removal from infected wounds.

A Y-connector with a one-way valve enables simultaneous feeding and suctioning through a single dual port tube.

A collapsing compression structure applies directed force to align non-planar wound margins, preventing dehiscence and infection without sutures.

Baffle wall in medical waste manifold defines sump region below outlet opening, pulling fluid from lower aspect to prevent egress and cross-contamination.

Segmented oil guiding channels balance liquid supply to the heating wire, preventing scorching and leakage from uneven temperature distribution.