Eye Surgery TRIZ Cases

An integrated gas syringe filling device eliminates multiple connections to reduce leakage risks while using pre-pressurization for rapid, reliable filling.

A bi-phasic intraocular lens cures in situ to restore natural accommodation, eliminating haptic-induced glare and tissue damage.

Segmented injector rails and ramps guide the optic and lift the haptic, resolving incomplete folding caused by simple structures.

A collection chamber and controller detect fluid level changes to determine posterior segment volume during gas exchange.

Segmented spikes and elastic springs stabilize electrode arrays, reducing drift and recalibration needs.

A toroidal strontium-90 beta source directs radiation toward target tissue while minimizing exposure to surrounding healthy tissues.

Feedback circuitry adjusts pump operation via sensor signals to maintain consistent drug dosage despite tissue growth or temperature changes.

Coordinate transformation modules compensate for six degrees of freedom eye motion between sessions, eliminating systematic errors from inconsistent alignment.

An eye disease implant device adjusts intraocular pressure by optimizing aqueous humor discharge through a tube and wick system.

An open trephine guide structure eliminates casing obstruction, allowing unobstructed visibility of the surgical blade while maintaining a stable vacuum seal.

A glaucoma drainage device uses an adjustable valve to control fluid flow and reduce fibrosis-induced resistance for stable intraocular pressure.

Local beta radiation inhibits scar formation and fibrogenesis, preventing bleb failure after minimally invasive glaucoma surgery implant insertion.

Concentric rings connected by angled members prevent corneal deformation and maintain curvature against intraocular pressure.

Segmented delivery components manage tissue damage risks during precise orbital implant placement via dynamic piercing and controlled pocket formation.

A cannula with an inclined guide ramp directs a flexible wire through an enlarged opening to prevent entrapment during medical procedures.

A fluid sensor and controller adjust pressure thresholds based on real-time flow commands to maintain stable intra-ocular conditions.

A vitrectomy probe with an adjustable cutter port size uses pneumatic control to modify the cutting aperture during surgery.

A titanium alloy ultrasonic horn uses helical slits to convert longitudinal vibration into torsional motion via distinct resonant frequencies.

A ring-shaped contact lens uses through holes to supply oxygen and lacrimal fluid while maintaining corneal shape stability.

A vibrating fiber mechanism imparts mechanical motion to an optical fiber to homogenize coherent light output.

An illuminated cannula integrates an optic fiber and illumination tube to transmit light directly into the surgical field.

An expandable intraocular shunt system delivers controlled drainage through a 63 μm outer diameter profile.

Bioactive glass shunt stores medicines in integrated chambers to control release, reducing transplant rejection risks.

Reservoir-based punctal plugs use diffusion to deliver drugs locally, preventing overflow loss and systemic side effects.

An adjustable tube aperture modifies incident illumination light properties, resolving the trade-off between portability and intensity in ophthalmic probes.

Biased fastener clip secures iris defects via single incision, avoiding time-consuming multi-incision suture techniques.

An asymmetric needle structure enables transverse vibration alongside longitudinal motion, reducing material repulsion forces during lens removal.

A multi-purpose phacoemulsification needle featuring a rounded distal tip for simultaneous lens fragmentation and capsule polishing.

Segmented fluid pathways isolate venting from aspiration to prevent rapid reservoir filling during ocular surgery.

Segmenting the ophthalmic tool into a sterilizable handle and disposable tip resolves the trade-off between cost-effectiveness and convenience.

Integrated storage circuits track usage status in disposable surgical robots, eliminating protein residue from repeated sterilization.

Console-driven valve compression reduces mechanical stress on sealing materials, extending ophthalmic cassette lifespan.

A dual-mode vitrectomy probe switches between resonant and non-resonant actuation to control cutting speed via pressurized fluid.

Replacing pneumatic drivers with ultrasonic vibration reduces noise and displacement, simplifying integration with phaco emulsification systems.

An OCT surgical hand tool directs measuring beams through optical fibers to image internal eye structures.

Nested needle assembly delivers intraocular shunts to suprachoroidal spaces, resolving precision trade-offs in glaucoma treatment.

A subretinal implantation instrument uses a piston and vacuum system to deliver retinal tissue through a tubular nozzle.

A retractable loop instrument removes retinal pigment epithelium through controlled mechanical extension and retraction.

An ophthalmic illumination system alters light spectra to enhance image resolution during surgery.

Lubricating solution bath reduces friction between rotating pump element and flexible tubing, preventing motor overheating in ophthalmic surgical hand pieces.

A guide slope mechanism directs a pushing member to fold intraocular lens support portions, preventing the tip end from catching on the optical portion edge.

Automated instrument switching maintains surgeon focus by reducing manual intervention time through pre-loaded containers and mechanical guides.

A retractable cannula assembly features a soft-tipped inner tube nested within a rigid outer tube.

Segmenting the needle tract creation from shunt delivery via a smooth rod eliminates fluid leakage and prevents shunt buckling during insertion.

A punctum plug insertion device uses a protective cover as a dilator and a trigger mechanism for plug deployment.

Sealed fluid pathways transmit pressure waves faster than air, increasing oscillation frequency and cut rate while reducing traction.

A pneumatic vacuum tissue removal device uses controlled pressure pulses to fragment and aspirate cataract material through a rigid cannula.

A head-mounted position sensing system uses a gyroscope and accelerometer to monitor patient orientation during retinal surgery recovery.

A tapered circumferential suction cup applies uniform pressure to tissue, resolving uneven suction patterns that cause inconsistent capsulotomy edges.

Adjustable cracking pressure from inner wall height differentials regulates aqueous humor flow, preventing bleb fibrosis in glaucoma implants.