Medical Devices TRIZ Cases

Multi-stage filtration preserves erythrocytes and plasma proteins while removing impurities from autologous blood.

A planar aerosol generating component features portions with varying vaporization rates to control particle size and total production.

Hexagonal recesses and interlocking ridges create a honeycomb structure that prevents cross-contamination between separate ink arrays.

A cervical stabilization device surrounds the cervix with a flexible cup and bladder to support the uterus.

Dual blue pixels with distinct wavelengths switch between 464 nm and non-464 nm emission to suppress melatonin secretion during sleep periods.

A nasal spray package nests a therapeutic liquid container within a tissue box structure for compact dispensing.

A vape device processor determines operational settings using payload identifiers and secondary data for customized vaporization.

An integrated dilution spacer mixes an aerosol plume with ambient air via entrainment, reducing oropharyngeal deposition and easing inhalation timing.

Pre-attached sterile filters enable resuspension without contamination, extending platelet shelf life to 14 days and other fluids to 3 months.

Automated system controls pump flow rates to dilute drugs, reducing manual handling exposure.

Bar-type parameter adjustment elements provide intuitive control over extracorporeal blood treatment settings through visual sliding tracks.

Tear lines allow the applicator portion to unfold from the sealed reservoir, eliminating uncontrolled dispensing and high production costs.

Adjustable joining means connect the stem and head of a modular spacer device, resolving trade-offs between locking safety and structural complexity.

A holographic label on an infusion pump pressure sensor shifts reflected light wavelength to detect occlusions.

An automated tattooing system replaces manual control with a multi-axis platform and 3D imaging to resolve positioning precision trade-offs.

Interchangeable disposable assemblies couple to a single reusable pump body.

Relocating control buttons to the side wall enables one-handed finger access while maintaining a compact shell structure.

A disposable flow set uses an identifying-key and stretching-key to ensure correct installation.

An implantable drug delivery device uses a movable piston to regulate fluid flow rates within tight volumetric tolerances.

Automated dialysis systems collect effluent samples using disposable pumping components with embedded identifiers and ratiometric pumping.

Independent gears rotate to deploy anchors into tissue, replacing suture methods and reducing surgical time.

A deformation-resistant wound interface encloses the wound bed to enable periodic pressure variation that massages tissue and promotes blood flow.

Motion-sensitive sensor unit detects patient activity levels, reducing detection delay for hypoglycemic coma while minimizing false alarms.

Diverted fluid streams pass through layered sorbents to enable continuous urea clearance monitoring without blood sampling delays.

A fenestrated needle array and vacuum source draw umbilical cord blood into a sealed receptacle for efficient stem cell harvesting.

Upstream pressure sensors detect secondary infusion faults like incorrect container placement or valve failures, preventing incompatible fluid mixing.

A flow control hub regulates fluid distribution across multiple treatment catheters using integrated restrictors.

An automated injection system uses sensor feedback to control needle extraction and fluid administration.

Segmentation and mechanics substitution enable easy cleaning of the container while maintaining secure heat conduction through magnetic retention.

A de-noising algorithm dynamically updates line segments fitted to weight data to maintain temporal resolution.

Reverse liquid flow through a vibrating membrane clears clogged openings, maintaining high aerosol generation rates and extending device service life.

Segmented mounting and container design reduces muscle ache from weight while infection indicators enable early detection.

Segmented high permeability shielding around the accelerator prevents beam deflection and reduces signal noise in MRI systems.

Separable control and pump modules reduce system bulk and cross-contamination risks while maintaining reliable negative pressure.

Offset recovery ports and variable chamber geometry remove excess plasma during centrifugation to minimize transfusion side effects.

A nebulizer unit uses a sealed connection mechanism to hold an ampoule in place.

A wearable headset delivers alternating visual and auditory stimuli to enhance neuroplasticity and cognitive function.

A syringe cutter uses a pivotable blade to cleanly slice flanges and plungers from chilled barrels.

Electronic sensors track cumulative catheter rotation and alert physicians to prevent twisting, preserving device integrity during procedures.

A control device calculates pressure slope during bolus injection to detect abnormal conditions in an infusion line.

A drug delivery drive mechanism uses movable feedback elements to generate audible and tactile signals during dose setting.

Inserted guide elements direct nasal spray to the lateral wall, preventing septal injury and improving absorption accuracy.

A nebulizer uses an oscillation unit generating multiple frequency components to atomize liquids via replaceable members.

A centrifuge chamber uses variable rotational speeds to convey priming fluid and evacuate air through a low-g outlet conduit.

A self-resealable septum enables safe refilling of implantable drug pumps through automatic healing after needle removal.

Propellant pressure drives a dip tube through a compound container puncture, directing flow to the olfactory region instead of the lower nasal cavity.

A spring-biased locking element interlocks the cover with the housing to block opening after use.

A suction device with a sliding gripping tube removes foreign substances from skin, resolving limited accessibility and difficult operation.

A syringe pump uses a resilient bumper to absorb external forces and inhibit unintended medicament delivery.

Nesting a smaller canister inside a standard-sized shroud resolves dosing accuracy issues without requiring assembly machinery modifications.