Surgery TRIZ Cases

A vascular filter uses a radial spacer to center the device within the vessel lumen during deployment.

Free-space illumination replaces waveguide feeds in photonic arrays, eliminating cross-talk and optical losses while enabling wider scan angles.

Mosaic arrays with overlapping sensitivity spectra capture simultaneous narrow band images, resolving adaptability versus complexity trade-offs.

A medical retrieval device uses a filament system to vary the size of an expandable grasping portion between discrete configurations.

A surgical tool handle assembly uses a cam and ramp locking mechanism to securely engage the mating end of the instrument.

Optical system prevents flare by controlling positional relationships between the illuminator and dome cover, eliminating trial-and-error adjustments.

Molded interconnect device with conductive patterns prevents static electricity damage to image sensors in flexible endoscope distal ends.

Alpha-tocopherol prevents thermal degradation of poly(lactide-co-ε-caprolactone) during high-temperature extrusion, maintaining mechanical properties.

A fluorine-containing polymer coating bonds to metallic substrates using an adhesion promoting copolymer layer.

An objective optical system uses an asymmetric path splitting element to divide light into two paths with different transmission counts.

A pivotable image capturing device adjusts its orientation within a rigid endoscope shaft to provide rear views, eliminating the need for additional incisions.

A pressure compensation cap uses a porous filter to equalize internal endoscope pressure while blocking liquid ingress.

An information management apparatus calculates required charging time for capsule endoscope receiving devices to ensure sufficient battery capacity.

A digestive sampling capsule uses a dissolving outer lid to expose an orifice, while a marker material enables efficient recovery from feces.

Acellular tissue matrix scaffolds cell migration to approximate separated tissue planes, preventing seroma formation without drains.

An angled scissor jack distractor rotates a pivot bell-crank mechanism to access disc spaces laterally while avoiding anatomical obstacles like the iliac crest.

A camera control unit detects endoscope type by counting black pixels in video frames to select appropriate image processing parameters.

Modulated light signals provide depth data that resolves narrow intestine rotation constraints, enabling precise polyp detection without mechanical movement.

Thermal polymerization of hydrophilic monomers creates a firmly bonded lubricant layer on the elastomer, preventing peeling and maintaining sliding durability.

Vapor-phase deposition bonds antimicrobial agents to parylene films for conformal biostable coatings.

A medical imaging device uses a signal integration unit to convert pixel signals from separate visible light and fluorescence sensors into a unified transmission standard.

A power relay mechanism transmits rotational force through a non-parallel shaft to reduce thumb rotation.

Aortic arch filter protects cerebral vasculature by capturing emboli, reducing stroke risk during vascular procedures.

An implantable nerve guidance conduit bridges large gaps using aligned electrospun fibers that provide contact guidance for regenerating axons.

Rigid bars of different lengths connect shaft segments, resolving minimum bending radius limits for close-area access.

A compliant wire frame with defect-occupying portions adapts to varying tissue geometries.

Nested pull wires within push members enable precise steering while managing structural complexity in intracorporeal devices.

A multi-protocol wireless controller characterizes available networks to select optimal connections for monitoring devices.

Segmented imaging units capture simultaneous visible and dual fluorescence signals, maintaining high frame rates without skipped frames.

A thermal exchange member in an appendage chamber applies heat or cooling to blood flowing through the arteriovenous anastomosis.

Segmented piezoelectric stacks with reverse phase operation prevent mechanical failure from amplitude overshoot while maintaining high power output.

A segmented endoscope shaft uses shape memory alloy to enable precise bending and rotation within narrow sinus cavities.

A capsule endoscope attaches type information to image data, enabling a processing unit to select specific programs for optical enhancement.

A mouth insert applies upward pressure through the upper lip to constrict nasal blood flow.

A snare device uses a superelastic core-wire and flexible coil to maintain structural alignment during state transitions.

A self-contained cleaning device system delivers saline and CO2 to maintain laparoscope lenses during surgery.

An implantable sensor measures tissue impedance using a four-point method and harvests energy via an external electromagnetic field.

Head-mounted fundus camera uses non-pupillary illumination to capture retinal images, eliminating patient discomfort and optical artifacts from glare.

An endoscope processor sets audio recognition dictionaries based on examination triggers to display item information and results.

A rotatable luer member directs fluid into a catheter shaft to inflate an internal balloon dilator.

Wireless ECG electrode motes transmit voltage signals to enable continuous cardiac monitoring while reducing patient discomfort from excessive wiring.

A nonionic surfactant mixture pins aqueous drops on hydrophobic surfaces to prevent retraction.

Continuous dry spinning produces aligned poly-4-hydroxybutyrate non-wovens with high molecular weight retention.

Segmented five-group lens system with cemented elements corrects chromatic aberration and distortion near 400 nm wavelengths for precise medical imaging.

Inversion of sacrificial molds yields interconnected scaffolds balancing mechanical strength and bone ingrowth capacity.

Disposable endoscope sheath integrates a one-way valve to prevent fluid backstreaming, resolving disinfection reliability issues in reusable instruments.

Segmented radiolucent carrying apparatuses allow X-ray transmission to resolve localization accuracy constraints in lithotripsy positioning.

Adenosine receptor modulator coatings on stents selectively target smooth muscle cells, reducing restenosis and thrombosis risk.

Segmented ultrasonic blades cut bone with minimal collateral damage to adjacent soft tissues.