Surgery TRIZ Cases

A multi-probe electrohydraulic lithotripter generates unfocused shockwaves via simultaneous electrode discharge.

Optical fiber nested within a multi-lumen tube in the bending section maintains central axis alignment during deformation.

A pressing section transmits therapeutic light to tissue while a blocking member prevents that light from interfering with the observation optical system.

An articulating wrist surgical instrument uses a universal joint to adjust the head angle, enabling precise access to constrained intervertebral disc spaces.

A capsule medical apparatus carries a reaction plane coated with chemical or biochemical substances that react with internal body components.

Segmented catheter design prevents lumen blockages by combining flexible navigation sections with rigid distal segments for efficient clot removal.

Ionic crosslinked bioadhesive coating on textile implants enables surgical repositioning without losing adhesion or causing tissue necrosis.

Adjustable cannulated retrograde reamer creates precise tunnels while reducing inventory needs for varying diameters.

A resorbable osteosynthesis device uses a polymer-ceramic composite to achieve stable mechanical fixation.

An endoscope tip uses an integral optical well to trap stray light and improve image quality.

Electronic signatures identify modular detector components, eliminating manual barcode errors and ensuring accurate remote configuration records.

A light source device combines a planar LED with a point laser for endoscopic illumination.

Bonding external electrodes on an image sensor reverse surface to joint electrodes on a layered device resolves manufacturing defects in sub-1.5 mm endoscopes.

Segmented chambers enable precise dispensing of strong and flexible adhesives, resolving control issues with low viscosity fluids.

Segmented cap parts replace threaded engagement to eliminate unscrewing issues, enabling high-throughput automated assembly of endoscope control valves.

Composite rings resolve mechanical strength versus controlled release stability by combining absorbable polymer matrices with non-absorbable reinforcement.

Removing alkali metal oxides from the composition eliminates cytotoxicity while maintaining mechanical strength for bone defect repairs.

An integrated electrophysiological diagnostic catheter combines mapping electrodes and biopsy forceps within a single shaft.

Sequential illumination synchronized with sensor exposure excludes first frame data, preventing mixed illumination artifacts in endoscope imaging.

Wireless signal transmission eliminates RF cable resonant currents, improving handling flexibility and safety in MRI systems.

Segmented elastic wires expand into stepped portions to retrieve lodged gallstones.

An endoscope frame uses an enlarged diameter section to abut a distal member for precise optical alignment.

A synthetic resin connector uses pressure-contact sealing between its end surface and the auxiliary water feed mouthpiece flange.

A urine sensing device uses a weight scale and force transducer to measure fluid output volume.

Vacuum membrane thermoforming shapes poly-4-hydroxybutyrate meshes without shrinking the porous structure or exposing it to water.

Weight-based positioning triggers a hindering unit that blocks filter removal when liquid load exceeds a threshold, preventing leakage during maintenance.

Universal hub adapters engage light posts in any direction, allowing the sheath tube to rotate independently and eliminate inventory complexity.

An endoscope system selects display image signals based on calculated evaluation values for alternating illumination lights.

A rivetless second bending piece couples to a frame member to resist torsion in endoscope bending portions.

Segmenting the retractor into a fixed blade and removable handle resolves the trade-off between stable exposure and unobstructed surgical access.

Meandering conduits trap air to prevent further flow, resolving contamination risks from mechanical sticking while maintaining precise isolation.

A video system tracks thorax displacement using reflective markers to measure breathing volume and rate without physical contact.

A dynamic endoscope cap uses wire-controlled hingeable arms to separate tissue layers during third space endoscopy procedures.

A flexible retention string connects a cardiac implant to the delivery sheath, enabling direct mechanical control during percutaneous insertion.

A physiological sensor uses an electrical grid to address multiple wavelength light emitting sources and a detector for attenuated light.

A temperature-sensitive hydrogel composition transitions from liquid to gel at body temperature.

Segmented illumination optical systems direct light to balance distribution, preventing flare and halation during endoscopic observation.

A modular endoscope separates the handle from the sheath to enable independent cleaning and reuse of components.

A biased pipe sleeve deforms a sealing member against a port to prevent gas leakage and reduce fitting force under varying internal pressures.

Polarizing filters align optical planes to reduce light interference, minimizing glare and over-saturation for clearer visualization.

Sequential account selection merges balances to eliminate unused residues, reducing signalling overhead and improving resource utilization.

Integrating wavelength conversion and reflection into one plate simplifies endoscope lighting structures while maintaining high light output efficiency.

A movable pressing part adjusts frictional engagement between rotating components to maintain bending states in endoscope operation units.

A surgical electromagnetic actuator uses a permanent magnetic field to hold the displaceable element in position without power.

Hierarchical protrusions with varying elastic moduli resolve adhesion strength versus biocompatibility trade-offs on rough biological surfaces.

Deploying a nested mesh shield distal to clot burden creates a circumferential seal that traps emboli, resolving delivery complexity in deep neurovascular beds.

A negative-positive lens configuration with paired third groups and individual aperture stops forms stereoscopic images.

Segmented power control isolates failed image sensors to maintain operational continuity and safety during three-dimensional imaging procedures.

Post-assembly adjustment of pressure force reduces production complexity while maintaining precise dial rotation.