Surgery TRIZ Cases

A pH-sensitive polymer coating dissolves at infection-triggered pH levels to remove biofilms and encrustation from medical devices.

Dynamic transmission ratio control reduces power consumption by filtering redundant images before wireless transfer.

Axially movable contact pins bridge manufacturing tolerances to ensure reliable electrical connectivity in rotating ultrasonic surgical handpieces.

Transparent element with calibrated visual reference marks enables precise defect dimension measurement on endoscope images.

High-temperature brazing connects thin-walled endoscope parts via capillary solder reservoirs, avoiding laser welding material weakening.

Implantable shunt releases anti-occlusion agents via elastomer matrix to resolve tissue proliferation blocking fluid drainage.

A monitor apparatus adjusts video signal color parameters based on detected output destination type to maintain consistent image reproduction.

A probe microphone measures sound pressure in the ear canal and applies frequency analysis to determine pressure minima for tympanic membrane estimation.

A segmented endoscope distal end joins a cylindrical mantle and curved front component to maximize internal structural space for optical paths.

An eaves-shaped hood part prevents body wall contact with the observation window, ensuring clear visibility for accurate puncture during ultrasonic imaging.

A coiling filter wire deploys from a dispensing needle into a vein to capture blood clots, avoiding complex surgical removal procedures.

A disposable dental mirror suction device integrates a reflective surface into the base body to enable simultaneous liquid removal and visual inspection.

Inertial sensors measure limb kinematics to determine anatomical angles without radiography, eliminating subjectivity in surgical planning.

Integrated valve mechanism in polymeric fittings maintains aseptic seals during disconnection, eliminating labor-intensive tubing cutting.

Stepped cavity tiers with Morse taper connections enable adjustable implant lengths for varying anatomical defects.

Spring-loaded anchoring arms expand to hold the biopsy marker in place, preventing migration during imaging.

Non-metal thermal insulation member separates the anti-fogging unit from metal frames to block heat transmission.

Segmented circuit boards and nested metal frames expand the field of view in a multi-viewing endoscope while maintaining a compact tip section volume.

Magnetic field holds ferrofluid bolus against flow forces, preventing non-targeted tissue adhesion during minimally invasive fistula occlusion.

Inwardly facing protruding features on a self-expanding frame engage and capture thrombi, reducing vessel wall trauma.

Disposable ureteroscopes eliminate cleaning time by using single-use scopes paired with reusable universal light sources to reduce maintenance costs.

An intrajoint balloon catheter maintains hip distraction, reducing tissue trauma and extending surgical duration.

A fluoroscopy apparatus dynamically switches between return-light and fluorescence images based on detected regions of interest.

An automated fabrication system produces biodegradable nerve guides with embedded growth factors, reducing surgical time compared to autografts.

A catheter system uses a rotatable inner tube to align an arcuate opening with a distal head for precise guidewire re-entry.

A nerve coupler system aligns severed peripheral nerve ends using friction-fit halves and fusogen delivery chambers to facilitate immediate axonal fusion.

Embedded surface markers on an elongated member establish a shared frame of reference, resolving misalignment between distinct imaging devices.

An ultrasonic surgical instrument integrates an aspiration sheath and mesh screen to enable minimally-invasive tissue debulking.

Replacing electric motors with a variable liquid lens reduces housing volume and power consumption while maintaining sharp image quality.

Iodine-based radiopaque shape memory polymers provide sufficient X-ray visibility without metal components.

Multi-component alloy film deposited on multi-tip tattoo needles creates a hydrophobic surface to prevent ink adhesion.

Rotary filter selects narrow band wavelengths to produce blood vessel and oxygen saturation images, resolving interpretation complexity.

A flexible printed circuit connects camera components within a compact cannula, while a tip housing blocks stray light from interfering with the sensor.

A capsule endoscope selects transmitting electrodes to stabilize signal transmission through the human body.

Connecting all endoscope channels at the distal end to a single suction source eliminates sequential flushing steps and prevents debris solidification.

A block copolymer surface layer prevents coating peeling under mechanical stress while maintaining smooth insertion in narrow vessels.

An automated slider and rack gear system delivers precise power transmission to control endoscope bending motion without manual knob operation.

A ferrule groove design enables transparent resin injection from the side surface, ensuring complete curing while preventing overflow into the light path.

A transponder device stores labeled images of medical implant elements for accurate identification.

A collapsible sleeve assembly couples colonoscope insertion tubes to add-on tubes using radial compression and elastic properties.

An optical sensor subsystem replaces electrochemical detectors to eliminate lag times and improve oxygen measurement accuracy in portable metabolic analysis.

Crosslinked polyester compositions exhibit shape memory behavior through thermal stimuli-induced dimensional changes.

A surgical marker uses a plunger or squeezable bulb to control internal pressure and regulate ink flow through the dispensing tip.

An elastomeric clip attaches auxiliary tools to endoscopes, eliminating the need for a second operator during procedures.

A flexible printed circuit board links endoscope signal lines to external connectors, eliminating soldering steps and simplifying maintenance.

A camera module uses a dichroic prism to split light into three optical paths for simultaneous visible and infrared detection.

A cup-shaped reamer uses cutting holes with varying sharpness to enable precise bone removal.

A vibrating handpiece tool adjusts ultrasonic frequency to suppress heat generation during non-contact operation.

Extraction relocates adhesion to a pelvic base, eliminating penile pain and leakage while maintaining reliable flow.