Medical Devices TRIZ Cases

Segmented needle insertion and withdrawal actions enable safe filling of sealed e-cigarette devices without leakage or user exposure.

A medical fluid injection manifold routes contrast media and diluent through separate pathways to isolate the pressure sensor from high-pressure fluids.

Fluid level sensors infer device tilt to calculate accurate drainage amounts, eliminating errors from manual scale reading on tilted collectors.

A rigid stainless metal tube slides within a polyurethane catheter to guide a silicone central venous line.

Adjustable jaw clearance enables easy engagement and firm gripping, solving the trade-off between portability and operational force.

A micro robot recapture line uses tensile strength to pull the device back through body ducts.

A pressure sensor measures static fluid pressure in an infusion lumen to detect container exhaustion, preventing air introduction and drug wastage.

Ion-doped metal basal bodies chemically bond polymer film layers, preventing detachment during delivery and reducing endothelium growth risks.

A metal securing cage holds the nebulizer container inseparably within the housing while allowing axial movement.

A disposable inhaler uses rigid housing and piercing needles to deliver medicament.

Interlocking ribs prevent door closure when IV tubes misalign, avoiding crimping and medication leakage risks.

An insufflator determines working pressure ranges using pressure and flow sensors to monitor cavity expansion.

A light source and photo-sensitive sensor detect the opaque stopper boundary within a translucent medicament container to determine longitudinal position.

Separating condensation from the atomizer via a dedicated channel junction prevents primary airflow cooling, maintaining vaporization effectiveness.

A subcutaneous vein access port incorporates a light source to emit visible signals through its cover membrane for precise location identification.

Infrared imaging detects infusion tube blockages and air bubbles via light intensity distribution, reducing device weight compared to separate sensors.

Magnetic attraction joins the atomization assembly to the battery base while seal rings prevent e-liquid leakage during atomizer replacement.

A portable wound treatment device applies alternating cycles of negative pressure and oxygen to a sealed wound enclosure.

Segmented cooling structure reduces target temperature during proton irradiation, maintaining epithermal neutron beam quality and extending component lifetime.

Far-infrared heating and ultrasonic vibration atomize coconut powder inside the nasal cavity to improve drug diffusion and retention.

A microstructured passage module with integrated walls and pillars atomizes liquid medicament into controlled aerosol particles.

A protective sheath driven by a return means features retractable catches that hold the spring under stress for immediate injection readiness.

A pressurized gas chamber depresses a flexible container to expel intranasal medication through a dispensing port.

A simplified in-line microwave warming apparatus integrates a single temperature sensor within the heating cavity to monitor fluid temperature directly.

Optimizing air inlet width between 0.6 and 1.17 mm balances airflow resistance against drug delivery efficiency, ensuring consistent emitted dose uniformity.

An indexing gear train drives a hub to position blisters, while temporary drive disengagement prevents over-advancement and medication waste.

A forehead thermal regulator maintains target temperatures to modulate sleep cycles.

A negative pressure drainage system embeds a wireless collecting device within the dressing to transmit real-time wound surface pressure data.

A bi-fluid chamber monitor tracks liquid flow rates via gas pressure changes.

A breath-actuated dry powder inhaler uses a toroidal chamber to disaggregate aggregates via non-tangential airflow.

Dual-stroke counting resolves miscounting errors from valve stem variations by advancing the ratchet on both outward and return trigger movements.

An alarm management system directs alerts to staff members based on dynamic patient attributes and assigned sub-priorities.

Pivoted engagement arms convert limited linear strokes into amplified circular driver travel, ensuring reliable dose counting despite tolerance variations.

A device controller synchronizes acceleration and extraction operations in particle beam therapy systems.

A vapor delivery device uses a controller to adjust ejector firing frequency, nozzle count, and duration for consistent fluid dosage.

An RGB LED panel modulates color and frequency via audio analysis to generate the Ganzfeld effect at a distance while minimizing epilepsy risk.

Radially extending palpation features on a septum enable tactile identification of port attributes without increasing the implant profile.

Filter media in the evacuation housing blocks contaminants while vacuum flow removes surgical byproducts.

Position detector monitors patch-cradle connection status to stop insulin flow during disconnection, preventing waste and maintaining dosage precision.

An asymmetric non-luer fitting prevents enteral-intravenous misconnections by blocking standard luer syringe attachment.

A drug delivery system synchronizes infusion with cerebrospinal fluid pulsation using a sensor and pump.

A sensor detects excessive liquid pressure in an injection device barrel while an actuator activates a relief valve to prevent tissue damage.

Segmented rear support hoop and temporal connectors redistribute display unit weight to eliminate clamping pressure on the face.

Selective optical filters block 480 nm light to prevent circadian disruption and enhance alertness during night shifts.

A medical adapter assembly bridges neuraxial and standard Luer fittings using a directional check valve.

An optical system detects wrinkles and applies treatment locally, avoiding invasive needles while ensuring precise coverage.

Frusto-conical seat guides conduit for secure coupling, minimizing liquid intrusion into wound therapy systems.

A combination catheter system uses a hydro-block air vent to enable complete urine drainage while preventing leakage.

A laser-driven proton beam generation system uses electromagnetic radiation to ionize a target, creating precise particle beams for medical applications.

Flexible transparent enclosure with adhesive base and tubular top maintains sterile environment during central venous catheter insertion.