Surgery TRIZ Cases

A variably-flexible insertion device uses vacuum pressure to lock tendons, transitioning the hollow body between flexible and stiff conditions.

A variable power optical system for endoscopes uses segmented lens groups to maintain high optical performance across magnification ranges.

A cardiac valve repair system integrates a temporary valve with a commissure locator device to stabilize the mitral valve geometry during implant deployment.

Axially spaced discs on a flexible base remove contaminants from endoscope channels while adapting to varying geometries.

A surgical tool uses a fulcrum mechanism to separate femoral cup and acetabular ball components.

Driving an ultrasonic transducer at its saturation point maximizes mechanical motion output while minimizing power consumption and device size.

An elongated probe directs electromagnetic radiation transversally to analyze biological tissue properties.

Elastic O-rings seal gaps between metal extension members and resin sheathing holes to prevent moisture infiltration during autoclave sterilization.

A barb-wired single crystalline silicon micro needle integrates a fluid passage and protrusion parts for tissue sampling and medicine injection.

A rotating cleaning brush handle decouples the opening brush from the conduit brush to enable independent operation.

Segmented pixel row resetting and sequential readout maintain frame rate while enhancing luminance and signal-to-noise ratio in special observation modes.

Counter-rotating slotted containers generate shear forces to separate pills from fecal matter, eliminating the need for multiple water flushes.

Zein coatings on stents control drug elution rates, reducing thrombosis and inflammatory responses.

A wearable biofluid collection device uses a zero-energy micro pump to transport sweat to semiconductor sensors for continuous analysis.

A processing device superimposes guidewire position data onto a stored angiographic roadmap image for precise catheter navigation.

A hollow sheath and filling member isolate an optical fiber from external mechanical stress to maintain constant light path length stability.

A vessel assessment system overlays real-time pressure measurements onto angiographic images to visualize stenosis severity.

Capillary channels regulate sample volume in a compact breath cartridge, resolving measurement precision issues from uncontrolled fluid delivery.

Segmented biodegradable polymer meshes release antimicrobial agents to resolve chronic pain and hernia recurrence risks.

Dual actuators at the endoscope tip independently control optical members to switch imaging modes without physical adaptor exchange.

Automated optical scanning identifies cassettes within drawer compartments.

A rotatable oblique-viewing stereoendoscope uses a dual-pupil aperture and channel lens assemblies to reimage pupils at the distal end.

Removing secondary cutting edges via convex land geometry eliminates uncontrollable torque and hole widening while maintaining primary cutting efficiency.

A wearable device detects volatile organic compounds in exhaled breath to monitor blood glucose levels.

A display unit overlays instruction details onto captured video frames to facilitate clear operator communication.

An integrated imaging bed channels heated fluid through the base to maintain subject temperature during in-vivo scanning.

A miniature implantable sensing unit with an anchor secures a batteryless MEMS sensor to an organ wall for continuous physiological monitoring.

A notification part tracks detected lesions in endoscopic images and alerts doctors when they disappear from the visual field.

Stacked substrate wiring ends arranged on specific side surfaces to prevent short circuits and corrosion in high humidity.

Continuous liquid resin discharge onto a cylindrical substrate creates flexible tubes with adjustable hardness profiles.

A control device adjusts endoscope suction intensity using real-time image analysis of tissue distance and adhesion states.

A wearable posture training device uses a skin-force sensor to detect body alignment deviations and deliver tactile feedback through a coupled arm.

Composite materials integrate barium sulfate particles with binding agents to maintain clear markings under fluoroscopy despite perspiration and antiseptics.

An indicator module mirrors fluid flow and temperature inside endoscope channels to verify decontamination status.

Segmented design isolates the cooling chamber from the handle, preventing child hand discomfort from extreme cold while delivering targeted gum relief.

A control unit adjusts feed frequency based on voltage signals to reconstruct impedance distribution.

Synchronized inner and outer shaft rotation drives the helical insertion section, reducing torsional stress while maintaining cavity flexibility.

Segmented blades on a polymeric arbor cut curved bone seating surfaces, resolving manufacturing cost and precision trade-offs.

Segmented fastening sections lock via a protruding part passing through a through hole, enabling reversible adjustment without complex mechanisms.

An adhesive bandage sandwich uses a form-stable silicone rubber elastic body to compress blood vessels.

Disposable bone cutter with insert blades and guide rod shapes femoral heads while preventing infection from reused tools.

Curved, asymmetric endoscope hood navigates tissue layers to apply tensile force without obstructing the treatment tool path.

A tissue marking device deploys a hook and thread to embed in targeted breast tissue for pre-surgical localization.

Positioning the video display device laterally and routing the suction tube along the back face prevents hand interference with the insertion portion.

A diffusing section with convex-shaped sections directs illumination light in a predetermined direction to maintain visual field brightness.

Pulsed ultrasound drives polymer fiber formation in a needle-free electrospinning chamber.

A hinged vial cap integrates a desiccant compartment to maintain humidity protection without risking cap loss.

A cobalt-chromium alloy undergoes cold plastic working followed by heat treatment above the recrystallization temperature to stabilize the face-centered cubic lattice phase.