Surgery TRIZ Cases

RFID circuitry tracks cumulative light bulb usage hours to prevent unexpected surgical failures and enable remote manufacturer diagnostics.

A gravity-fed apparatus moves dry medicinal powder into a gas stream for uniform bolus distribution through elongated tubes.

A compressible vaginal pessary anchors near the cervix and supports the mid-urethra using an X-shaped frame with elastic cross rods.

Pivoting optical devices on a movable endoscope component resolves the trade-off between mechanical stability and stereo imaging capability.

Hydrogel coating on porous braided nerve conduit prevents fibrous tissue infiltration while allowing oxygen and nutrient diffusion.

A multifunctional pocket knife integrates a pivoting tick removal tool within its handle structure.

Nested optical window maintains sterility while minimizing optical path length.

Replacing fiber optics with solid-state components reduces device diameter while maintaining high-quality illumination in minimally invasive procedures.

A polyurethane sheathed scalpel enables ultrasound visualization during minimally invasive carpal tunnel procedures.

A capsule endoscope system uses orthogonal coil units to generate rotating magnetic fields and gradients for controlled spiral motion along tubular organs.

Toggle mechanism allows repeated opening and closing of the retrieval pouch, preventing spillage while avoiding rupture during extraction.

A SPECT diagnostic method administers rest and stress radiotracers to capture heart pumping ability during myocardial perfusion imaging.

Segmented six-sided diamond geometry merges drive and lock interfaces to resolve the trade-off between rapid burr changing speed and device complexity.

Extraction of the central tube allows food passage while light radiation promotes healing to prevent restenosis.

Water-soluble polymer micro-needles accommodate hair follicles, dissolving in scalp fluids to reduce surgery time and pain.

Segmented brightness control manages illumination intensity across three ranges while maintaining stable color tone for optimal medical imaging.

Crosslinked isobutylene rubber compound combined with ultra-high molecular weight polyethylene powder resists deformation during high-temperature sterilization.

Relocating movable optical elements to the proximal area eliminates distal mechanical complexity, enabling miniaturization and autoclavability.

A 3D imaging endoscope uses sequential light sources and collimators to capture high-resolution surface images for digital modeling.

Stem grooves and pin members engage a connector to switch between locked and unlocked modes, resolving versatility versus stability trade-offs.

Polyamine-cured epoxy resists hydrogen peroxide plasma oxidation, preventing discoloration and clouding during sterilization.

Segmenting chambers with varying protein hydrolysis levels determines allergic response severity, eliminating trial-and-error feeding periods.

Transparent plastic housing eliminates complex sealing openings to resolve sterilization contradictions while reducing weight and cost.

Non-identical metamaterial elements reduce reflectivity at the skin interface, resolving impedance mismatch to improve glucose monitoring accuracy.

A non-screw ultrasonic probe connects transmitting members via a boundary face with distinct contact and non-contact areas.

A biodegradable porous scaffold absorbs wound exudate via capillary action for direct point-of-care analysis.

Helical paths in a shape memory catheter expand heat exchange surface area, resolving low efficiency from limited linear contact.

Catheter integrates cavitation bubble chamber and electrodes for targeted shockwave generation.

Segmented Nitinol rings expand to capture clots, resolving the trade-off between microcatheter delivery size and reliable engagement in tortuous vasculature.

A fuel-cell based electrochemical sensor detects volatile anesthetics in perspiration through amperometric measurements.

Segmented metal welding bonds endoscope optical members to distal end bodies, eliminating lens frames to reduce diameter while maintaining watertightness.

Segmented rotation and deflection control precise instrument placement, reducing tissue trauma during tortuous lumen access.

Memory alloy plug with spiral sleeve secures optical fiber guidewire connections for laser devices.

Threaded catch member secures polymer occluder in expanded profile, resolving reliability and complexity trade-offs.

Inductive coupling removes mechanical stress from rotating camera heads, eliminating optical misalignment losses during panning operations.

An elevated retractor blade arm connected via an angled extension reduces suture entanglement risks while maintaining structural stability.

A laparoscope uses a rotating transparent sphere and ring wiper to mechanically clean the optical lens surface.

Oblique light emission avoids direct pupil entry, reducing retinal phototoxicity and glare while maintaining surgical field brightness.

A segmented camera system splits visible light and near-infrared fluorescence into separate detection paths for precise imaging.

A portable scale system uses a U-shaped frame and disposable net to measure waste weight without manual handling.

A medical sampling device uses separate cartridges to collect alveolar and ambient air samples via a controlled pneumatic circuit.

Segmented triblock copolymers self-assemble into micelles to reversibly complex nucleic acids, reducing toxicity while enabling efficient cytoplasmic delivery.

Implants use fluid flow channels to prevent gastroesophageal reflux while maintaining long-term satiety induction.

An expandable interventional element couples to an aspiration catheter shaft for low-profile advancement and distal deployment.

Hydraulic pressure control in a liquid lens adapts focal depth to tissue irregularities, maintaining high numerical aperture.

Articulation mechanisms adjust distal end orientation to resolve trade-offs between precise placement and varying tissue thickness.

Elongated members distribute force outward to seal larger vascular openings, preventing migration and leakage.

A urine collection device uses a floating spherical bead to block the inlet when the vessel fills, isolating the sample.

Regional brain thermal stimuli reduces adverse effects like shivering by applying targeted temperature changes to specific cortical areas.

UV photolysis releases nitric oxide from s-nitrosothiols in situ, avoiding sample decay and enabling accurate clinical diagnosis.