Surgery TRIZ Cases

Segmented channels resolve leakage contradictions by enabling high flow rates up to 40 liters per minute for effective smoke removal.

Segmented elevator portions enable quick dismounting to resolve the contradiction between complex functionality and cleaning time.

Pre-alloying zirconia with an oxide stabilizing agent eliminates complex mixing steps and reduces energy consumption during sintering.

An expandable imaging hood displaces opaque blood using a transparent fluid to enable clear tissue visualization.

A catheter system uses spectroscopy to classify clot composition in real time.

A multi-material support member combines a metallic core with polymer features to enhance mechanical resilience and acoustic attenuation in intravascular ultrasound catheters.

An articulation mechanism positions a specimen bag to retrieve large tissue specimens intact through small incisions.

A monolithic shape memory alloy articulating portion eliminates assembly complexity by using twisted hinges to bend segments.

Nanosized precipitates pin grain boundaries in a MgZnCa alloy, resolving uneven degradation and mechanical anisotropy in implants.

A surgical instrument captures tissue using a grasper and deploys an inverted retrieval bag through one trocar port.

A serrated ultrasonic tip uses piezoelectric vibrations to abrade bone tissue while a polished internal surface protects adjacent tooth structures.

Electrodeposition fixes colloidal lubricant particles to conductive endoscope surfaces, preventing detachment and reducing friction during medical insertion.

A fastener system secures optical fibers in a hexagonal packing configuration to enhance coupling efficiency.

Vertical flow immunochromatographic assay detects SARS-CoV-2 antigens in oral samples using an absorbent test stick.

Flat micro-mirrors replace curved prisms to eliminate optical aberrations while sealed distal ends prevent dust contamination.

A pH-sensing paper detects cancer involvement in sentinel lymph nodes by measuring acidity levels within lymphatic fluid.

Axial magnet coupling transmits torque to the inner sheath while maintaining shaft posture, preventing operation unit diameter increase.

An elastic locking member with specific projection dimensions secures a mesh occlusion body to a bolt head.

System detects bleeding or mucus before correction to maintain calculation reliability.

Shallow end holes prevent crystal fracturing during clasp installation while a high polish eliminates skin abrasion.

Co-mingled thermally stable electrospun fibers minimize shrinkage and chronic pain by preventing uncontrolled crystallization at body temperature.

Pre-coating resolves firmness issues on complex ureteral stents.

A self-regulating vent assembly uses a pressure-driven piston to equalize gas flow, preventing elastic fatigue and rupture during transport.

Configurable absorbent articles use standing barriers to separate urine and bowel movements within distinct zones.

Adjusting red, green, and blue light ratios compensates for absorption by coloring agents to restore signal levels and enhance pit pattern visibility.

A medical handpiece uses a bearing-supported second shaft rotating independently within the first drive shaft to accommodate drill wires.

Thermal expansion of a conductive alloy drives chamber volume changes, resolving energy and space constraints for real-time GI fluid measurement.

Heated material transitions to pliability for insertion, then cools to rigidify and stabilize the opening while minimizing tissue damage.

A medical imaging device uses a color separation prism and bandpass filter to split light into visible and fluorescence components for simultaneous detection.

A cleaning apparatus uses wireless identification to automate cover operation and adjust processing parameters for specific endoscope types.

A sample collection device integrates a filter within the mouthpiece channel to capture oral fluid.

A sealed neurovascular extendable catheter uses a compliant protrusion to fluidly seal the annular gap between inner and outer tubes.

High-contrast fluorescent markers on clear dissection tips resolve visibility trade-offs during endoscopic vein harvesting.

A proximity switch detects a reference mark on a CT gantry tilt frame to establish the zero position angle.

Uniformly directed channels in anisotropic porous microneedles eliminate dead ends and prevent cell damage from centrifugation.

Nested components reduce the cross-sectional extent of the tip part assembly while maintaining structural stability and electrical insulation.

Segmented fixing members detach via a breakable holding portion, preventing accidental reuse and infection risks in medical devices.

A self-cleaning dental mirror tool uses a motor-driven rotor assembly to rotate the reflective surface at high speed.

Expandable air spaces within a diagnostic band stiffen internal tissues to transfer movement for external detection, correcting radiological image defects.

A compact observation optical system uses a nested objective lens and folded image forming path to support large image sensors.

Disposable polymer micro needle rollers resolve sterilization and spacing contradictions by enabling close needle arrangement without cross-contamination risks.

Orthogonal planar coils in a bonded square frame miniaturize the distal end diameter while maintaining magnetic flux density.

Nested filter structures collapse to minimize cross-sectional profile during navigation, then expand to capture emboli while reducing thrombi release risk.

Actuators move the camera for precise visualization, resolving narrow field of view limitations in minimally invasive surgery.

A wireless ultrasound endoscope system transmits state information to enable unified image management across connected devices.

A crosslinkable hydrophilic polymer composition forms a cohesive gel barrier on tissue surfaces through pH-induced chemical bonding.

A dual-disc cardiac occlusion device uses a gimbal-like connection to adapt dynamically to unique patient anatomy.

A steerable endoscope displays three-dimensional orientation of its distal tip using x-bend and y-bend data to guide navigation.

Titanium tetrabutoxide catalyzed synthesis of polycarbonate siloxane macrodiols resolves phase separation issues in biomedical polyurethanes.

A disposable electrochemical urinalysis platform detects kidney disease biomarkers through real-time electrical property changes.