Surgery TRIZ Cases

Segmented medical retrieval devices deploy multiple independent baskets to capture stone fragments simultaneously, preventing migration during lithotripsy.

Segmented fillers with distinct thermal expansion coefficients and a protective cover prevent joint breakage during autoclave sterilization cycles.

A medical image processing device calculates intensity ratios between fluorescent and reflected light signals to generate distinct fluorescence images.

UHMWPE and polyurethane composite materials reduce frictional forces during insertion, preventing device damage and patient injury.

A dual-magnet capsule design segments position and roll control to resolve uncontrolled rolling and limited pitch angles in stomach imaging.

A flexible circuit board supports optical and illumination components in a folded configuration within an endoscope tip.

A biodegradable paper urine collector uses adhesive wings to mount on a toilet bowl, resolving contamination risks and disposal waste.

Segmenting the detection zone from the absorbent core reduces manufacturing complexity while enabling on-site urine analysis.

A rotatable retaining flange aligns with or extends beyond the instrument head to engage medical device sockets.

A triple-curved retractor distributes lifting force across a larger contact area to expose the breast pocket during surgery.

A translucent cover member seals the optical signal end to prevent liquid intrusion during sterilization.

Segmented arm assemblies enable staged tissue retraction, reducing necrosis and strain while maintaining minimally invasive spinal access.

Expandable plug seals fetal membrane defects by expanding via shape-memory material, preventing premature rupture and fluid leakage.

A self-expanding bariatric device applies controlled pressure to the stomach to induce satiety signals without surgical intervention.

A fluid injector with a divergent common canal accelerates adhesive flow to prevent upstream coagulation.

Calibrates near-infrared instruments using a confocal optical system reference to measure biogenic substances accurately.

A multi-source endoscope illuminates tissue using split short-range and long-range light beams for uniform coverage.

A variable stiffness section dynamically adjusts rigidity to resolve force transmission bottlenecks in complex body cavities.

Threaded engagement between the knob and sleeve converts rotation into axial compression, securing the cap against various ports.

An external light source feeds a light guide that splits illumination for the target and handle, reducing heat in the grip.

Integrated frame design accommodates front and side optical assemblies within a compact tip, resolving field of view versus device complexity trade-offs.

A protective tissue cover slides onto surgical instruments to provide a sterile antimicrobial barrier.

A catheter body compounds a photosensitizer into its base resin to generate reactive oxidative species upon light activation.

Segmented helical tube adjusts bending rigidity to prevent sticking in complex anatomical passages while maintaining pushability.

A medical device control module selects binary images to boot regulated or non-regulated modes based on connection indicators.

Reducing oxygen and carbon content in nickel-titanium alloys prevents microcrack propagation under repetitive strain.

Interlinking web-pattern protrusions on elastic ligation bands increase friction and compression force to prevent band slippage during deployment.

Composite shaft transmits torque through braided reinforcement, isolating the reusable shape-lock mechanism to reduce device complexity and cost.

A head-mount vision tester displays real-time eyeball images to the testee for independent device positioning.

Segmenting the RF probe into orthogonal coils reduces magnetic coupling by 100 dB, enabling accurate pressure measurements in vivo.

Segmenting the laser video endoscope into a reusable camera and disposable probe eliminates sterilization risks, enhancing infection security.

A multi-functional surgical instrument combines an acetabular reamer and a trial within a single handle assembly for sequential bone preparation.

Rotating sampling port aligns with internal collection chambers to capture gastric-intestinal fluid samples inside an ingestible electronic capsule.

An embedded fiber Bragg grating sensor measures force via optical wavelength shifts, maintaining a clear surgical view without narrowing the operating field.

Segmenting the nozzle from the bulb via an intermediary coupler resolves the cleaning bottleneck caused by debris reflux into integral designs.

Nested tubes with expandable legs prevent migration and tilting in the vena cava for reliable pulmonary embolism protection.

A biomarker detection system uses ultraviolet autofluorescence for rapid diagnostics.