Medical Devices TRIZ Cases

Automated infrared camera calibration establishes baseline facial temperature to predict and prevent adverse reactions during blood collection.

Ultra-short-pulse laser drilling forms precise apertures in the nebulizing device aperture plate, eliminating burr formation and electro-polishing steps.

Agarose dermal fillers disperse in saline to remove misplaced injections, preventing vascular complications from hyaluronic acid fillers.

A catheter hub assembly uses a compliant insert to reduce internal cavity volume and enhance device retention.

Two V-shaped piercing elements create separate lid openings, resolving complex piercer designs while optimizing powder discharge characteristics.

A syringe pump detects fluid line blockages by calculating the slope of pressure changes over time using existing transducers.

Dynamic friction adjusts to restorative force, reducing operator fatigue during catheter tip deflection and enhancing tactile feedback precision.

Segmented magnetic docking units counteract tissue-induced torque to ensure reliable docking of ingestible substance carriers in implantable infusion devices.

A surgical drain with a positioning mechanism evacuates uterine fluid via negative pressure.

Segmented locking portions prevent unintended disengagement while enabling simple insertion operations.

A nebuliser device uses a disposable medicament capsule to simplify cleaning and disinfection of the vibrating mesh unit.

A manual negative pressure wound treatment apparatus accelerates healing by removing exudate and bacteria without electrical power.

A unified wireless controller manages multiple medical devices through a single interface with integrated charging capabilities.

A mechanical dose counting mechanism uses a pawl to rotate count wheels via linear actuation, resolving ambiguity in remaining medication doses.

Segmented reservoir design in portable insulin pumps removes air bubbles while maintaining compact size and reliable closed-loop control.

A hypoglycemia prediction algorithm processes blood glucose signals and insulin on board ratios to generate actionable risk alerts.

Removable nozzle isolates sonic generator from liquid, preventing contamination while maintaining aseptic integrity.

Targeted transnasal delivery of topiramate to the sphenopalatine ganglion reduces required dosages and minimizes systemic side effects.

A flexible bag spacer forms a medication cloud for inhalation, increasing lung deposition by 59% while reducing drug wastage.

An integrated locking mechanism blocks unauthorized control element movement, preventing medication misuse while maintaining operational ease.

Segmented reed units generate distinct sound frequencies through airflow oscillation.

An elastomeric plug in the fill port allows controlled refilling via a single needle insertion, preventing device damage and patient discomfort.

Hinged cover portions enclose medical tube connection points to prevent accidental disengagement.

A regenerated cellulose substrate with multi-lobal fibers stores aerosol precursor liquid for vaporization.

Built-in light source enables safe mucus removal in dark environments without disturbing infant sleep cycles.

A thermal imaging system measures fluid flow in medication delivery devices without physical contact.

Replacing fibrous wicks with a glass capillary tube eliminates inconsistent liquid delivery and fabric residue contamination during vaporization.

A braided catheter reinforcement layer incorporates discrete axial components to increase axial modulus and prevent elongation during device delivery.

Segmented primary and secondary reservoirs eliminate air bubbles during filling, ensuring safe dosing without complex drive systems.

An electrical circuit measures resistance to verify the catheter-cassette link, preventing contamination from manual verification.

A system controller manages wound site pressure using a hysteresis control band to conserve battery power.

Hollow piercing element mixes air flow with powder in the ejection channel to ensure complete dose expulsion from the reservoir.

A marking module reservoir communicates with the needle channel only downstream of the retracted needle tip.

A handheld control device with a conductive pattern provides variable flow rate and mixing ratio adjustments for medical fluid delivery systems.

Integrated sensor element measures aspirate pH within a closed housing, eliminating external imaging equipment and reducing bacterial contamination risks.

A male luer connector cap integrates a sealed disinfectant chamber to expose fluid upon removal of the sealing member.

Zones of varying radial distance in a catheter shaft improve torque while simplifying braiding complexity.

A subcutaneous port locking member compresses a sealing element to secure a catheter within the connector socket.

Non-contact magnetic detection replaces mechanical sensors to resolve measurement precision versus device complexity trade-offs.

A single-dose oral transmucosal dispensing device uses a deformable housing to lock the pusher after actuation.

Shape memory alloy wires rotate a gear mechanism to dispense insulin via a direct skin patch, eliminating tubing kinks and detachment risks.

Segmented tip apertures reduce contrast media extravasation risk while maintaining vivid vascular enhancement during CT scans.

Segmented nasal inserts redirect airflow to bypass the olfactory region, managing diabetes and obesity while maintaining ease of operation.

Segmented foam zones separated by impermeable barriers reduce tissue maceration and ingrowth in negative-pressure wound therapy systems.

Negative pressure wound therapy apparatus detects fluid path anomalies using integrated pressure sensors and controller logic.

A handheld light treatment device integrates a translucent head plate with a rotatable applicator disc for simultaneous phototherapy and physical cleansing.

A silicone-based wound contact layer delivers topical therapy during negative pressure treatment.

A flexible mesh sleeve distributes compressive loads on an implanted catheter tube to maintain lumen patency.

A modular infusion pump uses electromagnetic torque coupling to transfer energy between durable and disposable assemblies without mechanical contact.