Surgery TRIZ Cases

Annular resin barrier prevents fluid ingress and cracking in endoscope distal covers during sterilization.

Single-terminal pulse width modulation controls bidirectional motor rotation, eliminating minus power sources while maintaining precise speed regulation.

Dual catalysts and polar aprotic solvents produce aliphatic polyurethane foams with improved hydrophilicity, controlled porosity, and reduced toxicity.

A biological fluid concentration cup uses a moveable piston to position separated layers against a side port for selective withdrawal.

A vaginal speculum lever slides a pin to pivot upper leaves, reducing manual effort and tissue collapse during pelvic examinations.

A finger engagement assembly secures a dental mirror to the user's hand via a crossbar and rotational coupling mechanism.

Digestible circuitry eliminates non-digestible components that cause unwanted side effects, enabling chronic medical monitoring.

Dual lumen suction instrument aspirates tissue while introducing make-up gas to maintain cavity pressure.

Cylindrical heating element radiates far-infrared rays to dry and harden resin materials on endoscope repair parts.

Nested capture and threader loops in a medical snare improve precision during lead retrieval procedures.

Light detection thresholds determine data transmission in a capsule medical device, reducing power consumption and battery size.

Segmented bending section anchors prevent steering wire displacement in narrow endoscopes.

Ionic bonding stabilizes antimicrobial agents on polymer substrates, resolving agent retention issues while simplifying manufacturing processes.

Stacked bending knobs with asymmetric protrusions resolve small-hand manipulation conflicts for precise endoscope steering.

Ionic crosslinking transforms liquid components into a durable hydrogel barrier that prevents postoperative adhesions while ensuring complete tissue protection.

A contoured porous plate inserts into subchondral bone to provide structural and dampening support.

A disposable reamer shaft uses epoxy-glued attachment pieces to maintain precise centerline alignment with the cutting head.

Encoded field stop data enables automatic camera configuration, resolving manual setup bottlenecks that degrade image quality and operational efficiency.

A medical imaging system selects pre-defined settings groups to optimize acquisition parameters for specific vasculature features.

A plunger locking assembly engages a barrel lip to hold the syringe plunger at fixed longitudinal positions.

An intravascular suction assembly uses a nested guiding and suction catheter design to reach deep coronary locations while maintaining high suction force.

Automated slide processing system merges staining, coverslipping, and digitization units into a single apparatus for parallel operation.

Image processing device acquires normal and special light observation images simultaneously for endoscopic tissue analysis.

A radially expandable sheath anchors graft ligaments within bone tunnels using a tapered screw expander.

Thick-walled portions increase rigidity to prevent elastic tube loosening during cleaning.

Task-based mode segmentation reduces operator burden by automatically configuring operating parameters based on patient data and procedural context.

Segmented sheath design resolves strength versus flexibility trade-offs while maintaining sterility and fluid management channels.

An endoscope uses a light guiding plate to monitor illumination quality and adjust light quantity, preventing tissue damage while maintaining a thin diameter.

Partial hydrogenation of block copolymers balances oxidative stability and film softness for personal hygiene applications.

Porous mesh structure delivers therapeutic agents while maintaining blood flow, resolving occlusion risks.

Segmented struts enable progressive collapse of a hubless dome vascular filter, resolving endothelial adhesion that complicates removal.

A segmented objective lens with specific focal length ratios manages optical aberrations in compact endoscopes.

A helical rotatable portion draws urinary calculi into a storage cylinder, reducing operation time and tissue damage risk compared to basket forceps.

Cross-linked acrylamide filaments expand via osmosis to replace multiple platinum coils, improving aneurysm filling rates while reducing recurrence.

A video endoscope retaining body employs a magnetic ring and sleeve fastener to eliminate screw assembly complexity.

A fenestrated humeral prosthesis integrates suture holes into its stem and articulating block for soft tissue reattachment.

Molded swivel joint allows irrigation tubing to rotate freely around the surgical handpiece connection point.

Recessed bristles catch lice while integrated combs remove nits to prevent re-infestation.

An endoscopic accessory device creates a sealed compartment using inflatable balloons to isolate the examination site around the scope tip.

A self-learning module analyzes endoscope image structures to detect contamination and trigger automated cleaning control instructions.

Segmented wire frame maintains lumen patency while sealing defects, preventing stricture during gastrointestinal anastomosis.

Posture-adaptive display superimposes organ models onto body posture references during magnetic guidance, resolving positioning ambiguity in capsule endoscopy.

Segmenting the reusable metallic reamer from the disposable polymeric driver resolves manufacturing precision tradeoffs while enabling uniform bone cutting.

Integrated support filament and sheath prevent stone migration by expanding to trap fragments, reducing procedure complexity.

Auxiliary component enables wireless image transmission from medical visualization devices using high-frequency communication modules.

Replacing mechanical fasteners with energy-activated bonding materials eliminates tissue damage and reduces procedure time during mesh fixation.

A body-worn urinal integrates a far-infrared sterilizer to disinfect urine collection areas while maintaining patient comfort.

Sheet-shaped oral appliance applies thinner first insulating layers over sensors to improve detection accuracy while thicker second layers protect wiring.

A compact endoscope objective optical system uses a nested prism to redirect the visual field within limited space constraints.