Eye Surgery TRIZ Cases

Indirect RGB lighting turns an ophthalmic surgical console into a status display, reducing visual clutter while improving user experience.

A self-closing air connection with a check valve blocks non-sterile compressed air leakage when an ophthalmic hose is misconnected.

Hydrogel-coated catheters seed endothelial cells around Schlemm's canal to restore outflow, limit fibrosis, and sustain intraocular pressure control.

Separate viscoelastic and decomposition reagent chambers mix only during use, simplifying cataract surgery while preserving viscoelastic stability.

A hydrogel plug and biodegradable shell enable sustained intraocular drug release at the target site while limiting systemic side effects.

Threshold-crossing timing with adjusted LED current and receiver gain detects optical pathway blockage and sensor degradation before saturation.

A MEMS pressure sensor near the phaco tip detects occlusion clearance faster, enabling rapid surge control while preserving ultrasonic performance.

Load cells and optical sensors track remaining irrigation fluid during phacoemulsification to prevent pressure fluctuations and surgical delays.

Biologic tissue stents improve aqueous humor drainage in glaucoma while reducing erosion, fibrosis, and other ocular tissue damage.

An extender-based macular elevator shortens effective eye axial length, helping surgeons reach the macula in highly myopic eyes.

By combining 360° Schlemm's canalotomy with ab externo trabeculectomy, this case improves pressure reduction and lowers rebound risk in childhood glaucoma.

Light-based eye-level measurement lets ophthalmic surgery systems compensate elevation differences and deliver the intended infusion or aspiration pressure.

A cannula tip delivers bioadhesive as a bubble or thin film to seal retinal tears accurately while avoiding migration, scarring, and drip-related misplacement.

A disposable probe separated from the motor improves sterility, ergonomics, and control in precise tissue removal procedures.

Magnetic sensing tracks needle vibration so the drive frequency stays at resonance, reducing amplitude loss and heat during cataract surgery.

A dual-crosslinked polymer network helps ophthalmic drainage tubes resist deformation, rupture, and dissolution for longer-term glaucoma drainage.

Real-time blink, tear film, and eyeball temperature sensing adjusts RGB output in head-mounted displays to reduce visual fatigue.

A flexing plasma electrode suspended between adjustable arms creates precise tissue pockets with less damage and shorter treatment time.

Force-feedback control links and direct-drive motors help maintain remote center motion in robotic microsurgery, reducing incision tearing.

An integrated handpiece control stops, reduces, or closes suction quickly during phacoemulsification to limit accidental tissue aspiration.

Frequency and impedance feedback detect tissue state changes, signaling cut completion to prevent overheating and improve vessel sealing.

Stacked microporous membranes balance tissue ingrowth and flow diffusion to reduce irritation, scarring, and unstable intraocular pressure.

A pressure-responsive shunt valve replaces variable scleral flap resistance and adds continuous IOP monitoring for timely glaucoma treatment.

A scleral conduit platform guides tools to posterior eye regions for targeted treatment while reducing retinal detachment risk and tissue disruption.

Positioning forks and a rotary punch create accurate iris openings, reducing hemorrhage risk and shortening glaucoma surgery time.

Angled rotating inner and outer tube cutters keep the aspiration port open for faster vitrectomy and smaller vitreous particles.

A compressed suction cup expands inside the eye to cut a precise circular lens capsule opening through a small corneal incision.

A segmented Schlemm's canal implant keeps the canal open while preserving aqueous humor flow to lower intraocular pressure with minimal trauma.

A self-expanding eye stent keeps Schlemm's canal open to improve aqueous drainage and lower intraocular pressure with less invasive treatment.

A 60-90% cross-linked polymer tube wall helps ophthalmic drainage resist rupture and dissolution while maintaining stable intraocular fluid drainage.

Interferometer-guided frequency adjustment keeps the phaco needle at resonance to maximize stroke length while limiting probe heating.

A diaphragm-driven inner tube oscillates across the probe port to cut and aspirate vitreous humor with less retinal traction and tear risk.

A three-position plunger key lets one intraocular lens injector switch between push and twist delivery, simplifying insertion through small incisions.

A magnetic plate in the pump partition enables contactless deflection sensing, improving intraocular pressure control and sterility.

One-way valves in a vitrector pneumatic loop stop idle-time air leakage, preserve pressure, cut contamination, and avoid repressurization.

Variable-resistance microporous glaucoma shunts improve aqueous humor drainage while reducing tissue irritation, scarring, and pressure instability.

A nested primary-secondary glaucoma shunt controls flow resistance, improves anchoring, and helps prevent irritation and hypotony.

A flexible erodible punctal plug bends through the canaliculus to retain tears and provide sustained ocular drug delivery with fewer applications.

An integrated operating element lets surgeons stop or resume suction instantly, reducing accidental tissue aspiration and contamination risk.

A groove-based bladeless grabber tears trabecular meshwork inside Schlemm's canal to improve pressure control with less trauma.

Repeater coils and soft-magnetic ferrites boost wireless IOP sensor coupling, extending readout distance and easing alignment for point-of-care use.

Body-image matching with pre-op eye data helps identify the correct surgical eye quickly without special imaging hardware.

A deformable sleeve and magnetic sensing detect press inputs without rigid motion or rotational alignment, improving robotic microsurgery control.

Piezoelectric stack actuation replaces pneumatic chambers in a vitrectomy handpiece, enabling higher cut rates with less flow restriction.

A thin implantable dielectric elastomer actuator restores eyelid blinking with low heat, low bulk, and real-time symmetric motion.

Magnetic induction coils and a fast solenoid valve transfer power and data while preventing phaco vacuum surges that can damage the eye.

Nitinol-actuated flow plates adjust aqueous humor drainage through layered channels to manage ocular hypertension more precisely.

Magnetic sensing verifies lock state and tool coupling through a sterile barrier, helping robotic surgery maintain hygiene and faster tool exchange.