Surgery TRIZ Cases

Stress detection sensor positioned between physical quantity sensor and wiring connection member corrects output errors caused by bending operations.

A spacer constrains the cover glass position within an endoscope optical unit to establish a sealed solder pool.

Bioerodible intragastric implants self-expand via gas-producing compositions to induce satiety, eliminating surgical placement requirements.

Automated microfluidic channels separate and analyze rare tumor cells to improve early cancer detection accuracy.

An RFID transponder embedded in flexible information carrier plates stores identification data to enable automatic scanner access and secure plate tracking.

Angled nozzle openings eject fluid along the conical side surface to reach lower portions previously inaccessible with orthogonal designs.

Dual-layer silver nitride coating minimizes metal ion leaching and extends service life of orthopaedic implants.

Non-circular aperture geometry limits jaw rotation to prevent liner wear and protect the structural body from ultrasonic vibration damage.

Inclined illumination holes allow oblique withdrawal of damaged light guide fiber bundles, avoiding full bundle replacement and reducing maintenance damage.

Segmented vascular filter legs with distal barbs engage vessel walls to prevent migration while maintaining clot capture reliability.

Axially extending slits form struts and loops to create a self-centering mechanism, preventing leaks by adapting to varying septal defect geometries.

Segmented inner and outer structures capture thrombi while minimizing vessel trauma, achieving high first-pass revascularization rates.

Segmented operation portion housing isolates electric parts from the grasping area, preventing overheating while maintaining a compact packing ratio.

Segmented outer jacket with decreasing durometer improves pushability and trackability through tortuous vascular paths.

A non-invasive diagnostic system measures pain offset responses to temperature stimuli for accurate disease identification.

Color-coded titanium ligature clips mark specimen margins to prevent handling errors.

A panoramic image acquiring unit expands lumen wall surfaces into planar shapes to display photographed position information on a monitor.

Segmented coupler portions with angled fasteners and frictional elements join tubular structures, reducing leakage risk from micro-motion.

Internal metal wiring patterns on inclined housing chamber walls enable component integration without increasing the distal end frame diameter.

Huisgen reaction creates biocompatible alginic acid networks without copper toxicity risks.

A light applicator uses a flexible safety element to secure the distal needle tip against complete detachment during insertion.

Localized heat disrupts the stratum corneum while redox cofactors enable precise analyte detection without invasive blood sampling.

A biodegradable magnesium alloy composition containing yttrium and rare earth metals improves processability and mechanical strength.

A stereoscopic endoscope system processes right and left video signals to generate a 3D display for the surgeon.

Resin fills a frame-shaped cutout at the outer edge of a glass substrate to prevent chipping during cutting, enhancing manufacturing reliability.

Composite basket legs combine a nitinol inner core with a stainless steel outer layer to balance strength and flexibility for effective stone retrieval.

Forming markers in-situ eliminates machining costs and prevents slippage without foreign materials.

A swab device integrates an embedded test element using gold nanoparticles to detect biological samples directly at the collection site.

Endoscopic diagnosis system calculates oxygen saturation levels by separating blood vessel depth and blood amount effects using narrowband light signal ratios.

Acicular body uses a low brightness support plate to enable visual observation of needle dissolution.

An inflatable capsule endoscope floats via an external buoy, reducing friction and enabling portable magnetic navigation.

A flexible wiring board with extending portions electrically connects an imager to cable wirings in ultra-small imaging modules.

An endoscope accessory assembly uses flexible arms to generate attachment forces while accommodating dimensional variations.

Segmented cable fixing portion aligns and secures exposed core wires to substrate electrodes, resolving reliability trade-offs during distal end downsizing.

Non-linear power variation increases enzyme-mediated thrombolysis by 1.9 times, resolving the trade-off between treatment speed and device complexity.

Segmented ultrasonic blades with varying transverse areas allow controlled bending to access rigid anatomical sites.

Curved stainless steel retractor features surface grooves to improve X-ray visibility during surgery.

A urine color and concentration assessment system integrates a collection container, standardized chart, and light source for hydration status evaluation.

A receiving apparatus detects antenna detachment after recording starts and issues a warning to prompt reconnection.

An integrated body merges the locking protrusion, detachable button, and spring mechanism to reduce part count and simplify assembly of the endoscope.

An embedded transparent electrode pattern eliminates glare and field of view obstruction caused by opaque electrodes in endoscopic hoods.

An inorganic biochip substrate coated with a cured alkoxysilyl and biocompatible compound minimizes elution and maintains detection accuracy over time.

Routing fiber optic sensors through structural tubular elements detects unauthorized entry attempts while delaying breach until the line is severed.

A sliding member operates a braking member to switch an endoscope insertion portion between pivotable and restricted states.

Segmented plates and membranes resolve flow rate versus collection trade-offs, preventing clogging while capturing fine bone dust.

Segmented coil assemblies in a magnetic detector probe minimize thermal drift and interference during nanoparticle sensing.

A capsule device uses an acceleration sensor to detect specific movement patterns for precise activation.

Nested helical stages in a surgical distractor convert rotation to linear movement, replacing multiple spacer blocks and maintaining joint balance.