Medical Devices TRIZ Cases

Leakage sensing pads detect medicine loss or liquid ingress early, helping protect the circuit board and maintain accurate continuous dosing.

A locking cartridge insert enables single-step infusion needle and CGM sensor placement while improving connection stability and sealing.

A normally closed push-button flush valve and roller clamp enable fast IV line flushing with immediate shutoff to prevent accidental over-administration.

A superelastic coiled cannula improves soft-tissue placement and anchoring to reduce foreign body reaction and extend insulin infusion wear time.

Silane-based primer treatment improves epoxy adhesion at the yoke and sleeve interface, limiting moisture ingress and leakage current.

A removable pen module uses an adaptive bore, frictional sleeve, and magnetic sensing to fit different injection pens and track dose accurately.

An angled, pivotable side stem helps dual in-line ports keep both lumen flow paths more balanced while preserving a smaller incision site.

A movable plug pushes the needle shield back after insertion, preventing clamp creep and enabling reliable autoinjector cap removal.

An inclined air outlet channel improves aerosol discharge speed and output effect in banded substrate assemblies while reducing smell blending.

A blunt-tip sleeve and stylet assembly tunnels a drain through a wound under local anesthesia, reducing repeat procedures and invasive placement.

Thermoelectric modules and sensor feedback heat or cool dialysate to about 37°C despite ambient changes, improving patient comfort.

A sterilized canisterless wound pump uses one-way flow and leak-aware control to maintain negative pressure, reduce infection risk, and save power.

A reel-fed strip substrate enables many atomizations without manual replacement while preserving substrate consistency and service life.

A spring-biased slider-crank retracts and locks the injection needle after use, avoiding power-loss failure and reducing disposable device complexity.

Pressure-pulse dispensing separates storage from delivery in a vaporizer cartridge, preventing vacuum lock and reducing wasted material.

Multi-wavelength light reflection identifies infusion pump tube clamps faster and with less optical hardware complexity.

Capillary microgrooves in the atomizer air inlet absorb aerosol condensate before it reaches the housing, preserving appearance and user experience.

A polymer implant releases bicalutamide directly in prostate tissue to sustain therapy while lowering systemic exposure and toxicity.

Dynamic control of multiple aerosolizers tailors droplet size, concentration, and dosing while monitoring inhaler use in smoking cessation.

Placed above subcutaneous drug pellets, a collagen pellet absorbs exudates to reduce infection, scarring, and pellet extrusion.

Edge-fed liquid delivery keeps the wick off the transducer surface, reducing SAW damping, heating, and large-droplet ejection.

Magnetically actuated unit cells switch between contracted and extended states to navigate confined spaces while enabling drug delivery.

An elastomeric stopper and channel insert keep the Luer fluid path leak-free while blocking contaminant entry during repeated use.

Targeted weighted wraps apply gentle chest pressure to mimic being held, helping infant sleep without swaddling training or hip-binding risk.

A segmented wearable infusion pump uses secure reservoir latching, plunger sensing, and a bubble trap to improve delivery reliability and convenience.

Magnetically detachable catheter clamping enables thorough cleaning and sterilization while supporting independent urinary catheter insertion.

A spring-raised locking module retracts the needle into the housing after injection, blocking plunger reuse and reducing infection risk.

Expanding the container tube while applying adhesive enables automatic catheter insertion to a set depth, reducing manual assembly labor.

Fluid detectors in each tube clamp let the controller adjust wafer heating power to avoid weak welds or tubing burn.

LED-based line sensing uses a dry-tube baseline to stop pump priming at the right fill state, improving dialysis fluid handling accuracy.

Combined 40 Hz auditory and visual stimulation induces gamma oscillations, boosts microglial clustering, and reduces amyloid load across brain regions.

Averaged reference signals in a biomonitoring neuroheadset cut cross-talk and common mode noise during simultaneous EEG, ECG, EMG, and GSR sensing.

A single introducer needle deploys both the infusion catheter and CGM sensor together, cutting insertion steps and user discomfort.

Vibrational lipoaspirate separation in a closed-loop fat transfer setup cuts processing time, contamination risk, and large-volume handling limits.

A stacked dual-pathway conductor uses negative pressure and vapor-permeable layers to remove exudate and periwound moisture, reducing maceration.

Separating sterile fluid-path parts from housing assembly enables aseptic large-volume injector assembly with lower manufacturing complexity.

A packaging carton converts into an inhaler spacer, cutting bulk and cost while improving drug delivery and reducing mouth-throat deposition.

A coiled superelastic cannula anchors in the hypodermis to reduce foreign body reaction, improve placement, and extend infusion wear time.

A movable inserter tip opens a sealed wetting chamber in one action, fully wetting the catheter while keeping handling parts dry.

A linearized tube deploys as a coil in the GI tract to apply negative pressure, remove fluid and debris, and support healing of leaks and perforations.

Pressure-resistant features around a split septum valve help a near-patient connector prevent leaks during high-pressure infusion or occlusion.

Manual actuation opens a nasal valve assembly to pair airflow with drug release, improving dosing accuracy and rapid uptake.

A central injection assembly surrounded by reservoir, pump, and circuit modules helps a patch pump resist detachment and keep drug delivery stable.

User-configurable alerts let an insulin infusion system switch from closed-loop to another delivery mode to preserve glucose control with less sleep disruption.

A reciprocating, non-piercing coloring rod simulates tattoo needle motion to build muscle memory and shorten beginner training.

A shape-forming GI tube deploys from linear to coiled form to apply negative pressure, remove fluid and debris, and treat leaks or perforations.

Pressure sensing in fill and return lumens lets a PD control unit detect line occlusions automatically and reduce treatment interruptions.

AI mood tracking, journaling, and feedback provide real-time emotional support when professional care is costly or unavailable.

A one-piece inhaler body integrates two reservoirs and a piercing head to deliver separate powder doses with simpler assembly and lower part count.

A movable piston chamber meters powder, then mixes it with pressurized fluid to prevent clogging and improve dosing through long catheters.

An injectable composition of micronized dermis and hyaluronic acid augments soft tissue volume in the plantar fat pad.

Segmented vapor generator with perforated support extracts curcumin essence while preventing unwanted component release.

A threshold electrocutaneous stimulation apparatus detects slow wave sleep stages and applies gentle electrical pulses to the patient.

A conductivity sensing system measures electrical resistance in fluid pathways to verify dialysate mixing.

Electronic storage tracks container usage while an electric drive actuates a lock, replacing complex mechanical counting mechanisms.

A gravity infusion system uses a drop counter and processor to automatically adjust the roller clamp position for precise fluid delivery.

A peritoneal dialysis apparatus measures intraperitoneal pressure during fluid exchange to establish patient-specific volume-pressure functions.

Portable infusion pump system monitors ambient air pressure and temperature to alert users of environmental changes.

A urinary catheter assembly uses a folded collecting bag to reduce length.

V-shaped bending grooves enable one-handed disposal by folding the cover against a surface, preventing needle reuse.

An elastic open-cell sponge prevents spontaneous leakage while an integrated RFID tag stores treatment data to reduce waste.

A three-mode optical device uses dual lasers and motion sensing to enhance user concentration through electromagnetic field interaction.

A closed loop control system monitors physiological conditions and administers medication based on retrieved signal accuracy indications.

Contact faces engage costal arches to fixate intracorporeal guide components without sutures, reducing tissue injury.

A medication injecting catheter uses a reciprocating cover member and motion converting mechanism to control lumen flow.

A suppository mold uses a malleable dome and flexible tab to eject solidified compounds into applicators.

Exterior conductivity sensors monitor fluid proximity to detect infusate leakage, preventing fatal overdoses from pocket fill.

Radial airflow deaggregates cohesive powders, resolving dosage uniformity trade-offs and preventing agglomeration.

Vibrating a capillary wick volume eliminates mesh clogging and maintains constant vapor output without frequent cleaning.

Elastic valve member seals Luer connector fluid channel via deformation, preventing leakage and bacterial growth without slit degradation.

Integrated polypropylene mesh anchors reduce urethral pistoning and CAUTI risk.

A multiple pulse shuttle pump uses a shape memory alloy wire to actuate a valve and extend stroke length.