Medical Devices TRIZ Cases

Ear-worn electronic device generates virtual sound environments and verbal instructions for mental exercises, assessing compliance via physiologic sensors.

Segmented catheters navigate tortuous anatomy by expanding against vessel walls, resolving stiffness trade-offs that cause sticking during thrombectomy.

Segmenting the device into a reusable main body and disposable cartridges reduces manufacturing costs while maintaining accurate dosing precision.

A neural probe cover element integrates a fluid delivery channel to connect external conduits directly to the probe body.

A leg band replaces adhesive to prevent skin breakdown while an elastic cover secures the port divider for reliable stabilization.

A prepulse signal warns the auditory system prior to negative pressure pump activation, reducing noise disturbance and improving sleep quality.

Segmenting the electronic capsule into discrete drive and payload elements decouples power supply storage from medicament stability requirements.

A meander reservoir drug delivery system uses capacitance measurement to monitor fluid levels and detect pump failures.

Shaped protrusions in fluid passages promote laminar airflow, resolving inspiratory flow rate trade-offs in dry powder inhalers.

A vent conduit with a hydrophobic filter introduces air into a wound therapy reservoir, preventing fluid stagnation and ensuring complete exudate drainage.

Flexible pullout resistors anchor transabdominal feeding tubes to the abdominal wall without obstructing intestinal flow.

Flexible distal projections engage peristalsis for advancement while collapsing during withdrawal to minimize patient trauma and ensure smooth extraction.

A syringe plunger features a dose divider with rotatable abutment surfaces that provide tactile feedback for precise medication delivery.

Low frequency pressurization and high frequency sonoporation accelerate drug delivery into deep tissue regions.

Vacuum suction removes bacterial exudates from deep pockets, reducing edema and promoting angiogenesis without invasive surgery.

Motorized syringe and pressure sensors prevent air bubbles and backflow, resolving manual injection errors while maintaining ease of operation.

Integrating a negative pressure source and sensors into an absorbent wound dressing eliminates external tubing while preventing exudate pooling.

A visual activity training device stimulates the brain's visual cortex to induce sleep.

A pump-based fluid collection system uses a vacuum to draw liquid into a container while sensors track volume and status.

A hinged aromatherapy vaporizer resolves the contradiction between device size and heating efficiency by nesting chambers within a compact, dynamic housing.

Induction heating of the pump base and rotor controls dialysate temperature, reducing device complexity and infection risks associated with external heaters.

Telescoping leveling feet adjust device orientation to prevent fluid pooling and ensure consistent mixing in dialysis systems.

An inclined bottom wall guides liquid medicament toward the outlet to eliminate dead zones in nebulizer cartridges.

A catheter extension assembly uses a wicking member to transport urine to a color-changing indicator for visual infection detection.

A liquid-drug administration device uses a slit disk encoder to detect occlusion in the flow passage.

Low-stretch bonding of composite nonwoven elastic webs reduces facing material usage and laminate costs.

A variable stiffness adhesive system combines a flexible substrate with a central stiffener to secure medical devices on skin.

Segmented monitor portions invert attachment logic to record proper versus improper usage, reducing underdosing risks from unreliable detection.

Opposed capacitor plates detect capacitance changes in an IV line to monitor fluid flow and pressure.

A boost converter steps up voltage output to power a heating element in an aerosol delivery device.

Hydrophobic air vents in a condom catheter permit airflow for complete drainage, preventing urine accumulation and skin irritation.

Fluorescence lifetime imaging microscopy analyzes NADH and FAD autofluorescence to objectively select viable embryos, eliminating invasive biopsy risks.

A miniature flexible thrombectomy catheter uses a nitinol jet body to navigate tortuous neurovascular anatomy.

Composite tubular constructs secure biologic adjuncts to seal staple holes, preventing leaks and inflammation in tissue lumens.

Twisted flow control in a compact inhalation device improves peripheral lung delivery and patient compliance.

A spring-activated latch integrated into a passive mechanical interface automatically switches between closed and open configurations to control fluid flow.

An algorithm automatically recommends insulin pump parameter adjustments using continuous glucose monitoring data.

A cooling device lowers tissue temperature to disrupt pathogenic biofilms and reverse microbial morphology.

A medicated pad system integrates a suppository unit to deliver targeted medication directly to affected areas.

A composite syringe plunger stopper embeds a rigid insert within an elastomeric layer to stabilize shape and reduce distortion during drug delivery.

A portable convection vaporizer uses a furnace and temperature sensor to heat air for efficient organic compound release.

A portable airway aspiration device uses a flexible diaphragm pump to generate vacuum pressure for debris removal.

A retractable infusion needle resolves dosing precision and fibrosis risks by enabling controlled drug delivery within an implanted housing.

A liquid light conducting catheter transmits laser energy through a metal reflecting layer to deliver photosensitizers directly to deep tumors.

A liposuction purification device uses a bidirectional non-return valve to control fluid pressure thresholds during fat cell separation.

A pressure-responsive valve shifts airflow restriction states based on inhalation strength, replacing manual settings with automatic adaptation.

Segmented capacitive electrodes on a pump housing detect fluid levels through the wall without direct contact.