Medical Devices TRIZ Cases

Mechanical valve enables automatic e-liquid filling, eliminating manual refilling complexity.

A battery-powered heating system positioned along neonatal feeding tubes prevents heat loss and preserves energy for preterm infant growth.

Segmented holes manage debris while interference fits ensure secure attachment.

An autoinjector cap integrates an antiseptic-soaked dressing receptacle with a removable cover for pre-injection skin disinfection.

Displacing a mold cavity wall during injection stabilizes the catheter core, resolving vibration-induced diameter inconsistencies and easing separation.

NACA profiles reduce uncontrolled turbulence in the inhalation channel, ensuring reliable drug delivery and improved hygiene.

A damping system automatically returns an inhaler canister to its rest position within a predetermined time period.

An adhesive barrier system prevents bacterial contamination at the skin-catheter interface, reducing infection risks without relying on antimicrobial agents.

A non-adhesive anchor secures catheters using mechanical friction and geometric interlocking without skin contact.

A T-site connector system enables secure attachment of needles and cannulas to standard peripheral IV catheters.

Intermediary adapter bridges ISO 594 and ISO 18250 standards, reducing inventory complexity during medical system transitions.

A single lumen adapter with a rotatable valve member switches fluid pathways between ports without physical disconnection.

Piezoelectric pumping catheters replace bulky mechanical drives to shrink implantable infusion device size and extend operational duration.

Segmented cutting teeth create a single flap that folds into the blister, preventing powder trapping and ensuring consistent airflow.

Segmented breakable bridges in a nasal powder delivery device minimize residue and ensure smooth actuation.

A shipping container system reconfigures into an injection device using folding guides to shape the lens.

Segmented catheter body with a flexible proximal-intermediate region and rigid distal section stabilizes positioning at the aortic root.

Segmented bevel geometry on an intracameral injector needle lowers tissue damage during transcorneal injection.

A catheter tube houses a longitudinal conduit with an integrated sensor element to determine fluid parameters.

Flexible funnel distributes forces across bladder tissue via a 360° contact profile, reducing stress concentrations that cause discomfort.

A fluid collection device uses a segmented gas channel to suction urine into a storage container via pneumatic flow.

An automated infusion pump system sequences multiple fluid channels via microprocessor control to eliminate manual programming complexity.

One-shot injection molding integrates barrier coating into syringe stoppers to eliminate dead space and improve sealing integrity.

A portable electronic treatment device generates dynamic images and graphical elements to guide users through exposure therapy protocols.

Doped glass absorbs electromagnetic radiation to melt and bond the needle, eliminating adhesive contamination risks in sensitive pharmaceuticals.

Simultaneous dual-button activation prevents accidental bolus delivery while enabling precise, customizable insulin dosing for patients.

Pyruvic acid condenses with a gaseous carrier to extract nicotine from tobacco, eliminating combustion byproducts and harmful nitrosamines.

A sizing catheter uses a snug outer member to secure radiopaque markers on an inner shaft.

Dual air flow paths across a flexible diaphragm create pressure differentials that lower trigger force, resolving high activation flow rate bottlenecks.

Segmented design replaces manual insertion with an automated pump mechanism, reducing urethral friction and pain for comfortable self-catheterization.

Segmented locking mechanisms reduce operation force and prevent claw degradation during medical device connection.

A light pipe transmits infrared radiation to verify enteral feeding set loading in the pump housing.

A retractable spring spool system manages medical tubing length to prevent accidental catheter dislodgment while ensuring continuous fluid delivery.

A conductive hook and loop securement system completes an electrical circuit to detect catheter needle disconnection in real time.

A catheter with flow and uremic solute sensors measures dialysate volume and concentration to calculate Kt/V values in real-time.

Segmented resistive heating zones in a flexible tube prevent overheating while warming medical solutions.

A continuous glucose sensor uses a separable sensing unit and data holding unit to transmit information via connector units.

A malleable base flange secures surgical tubes via friction-fit and adhesive attachment to patient skin.

Elastic membrane bladder pressurizes medicament liquid for stable atomization in any orientation.

A motor-driven actuator replicates manual force profiles to eliminate operator variability in nasal spray drug delivery measurements.

A visualization ring guides needle entry port location through ocular tissue for accurate implant refilling.

Segmented dressing zones use a hydrophilic perimeter to absorb exudate when pressure releases, preventing skin maceration and accelerating healing.

Segmenting the bulb and stem prevents cross-contamination by allowing separate sterilization of each component.

A disposable applicator uses a convex wall pressed against a peripheral web to dispense contents.

An asymmetric protrusion prevents incorrect assembly of the identification marker, ensuring accurate imaging and reducing patient complications.

A suction regulator device uses sensors and a processor to detect contamination and transmit alerts for autonomous signaling.

Gold or silver coatings on metallic components prevent reactive condensate from deteriorating aerosol acceptability.

Sheet driver hub incorporates a central shaft-mounted torsion spring to tension the medicament carrier during winding.

A filter adaptor orients a gas-permeable element at an angle to increase surface area within a compact external diameter.