Eye Surgery TRIZ Cases

Segmented color layers with varying opacity mimic natural iris geometry, resolving the trade-off between enhanced color and artificial uniformity.

A thin-film image capturing platform extends from a tubular implement to provide direct visualization within the eye.

Variable-hardness resin portions give a lacrimal duct tube distal pushability and endoscope compatibility when blind insertion risks duct injury.

An asymmetric D-shaped surgical needle tip transforms rotary torsional motion into sweeping cutting action to reduce blockages during phacoemulsification.

An expandable thermal system burns precise lens openings using pulsed current, eliminating irregular edges and reducing vitreous entry risks.

Alignment ribs on a cassette carrier ensure fluid line orientation during insertion, preventing malfunctions from incorrect alignment.

Porous shape memory polymer inserts expand to maintain duct patency while allowing tear flow through the material matrix.

A surgical console controller adjusts pneumatic valve duty cycles to maintain consistent differential pressure during vitrectomy procedures.

A surgical console mounts an ultrasonic transducer on a spring to maintain constant force against an elastomeric acoustic coupling.

A surgical end effector combines ultrasonic cutting and electrosurgical coagulation using a unified control system for precise tissue manipulation.

A plunger-driven reservoir with check valves controls viscoelastic material flow for eye surgery.

Welded metal components eliminate adhesive dimensional variations, allowing the cutting port to sit closer to the retina for precise fiber removal.

Axial translation linkage and dual sensors align the cassette in horizontal and vertical planes, preventing jamming during surgical console insertion.

Fundus-guided OCT tracking directs imaging beams to surgical instrument locations, resolving fixed scanning limitations during vitreo-retinal procedures.

Opposing magnets in an electromagnetic actuator reduce vibration and noise from pneumatic systems, enabling precise vitreous humor removal.

A medical instrument shaft features a hardened S-phase surface layer formed by nitriding to enhance deflection resistance while maintaining flexibility.

A biased distal portion fits within the anterior chamber angle to position an intraocular shunt without external optical apparatus.

A vitrectomy probe integrates a tissue sensor with an actuator to differentiate ocular materials during surgery.

An integrated intraocular injection device stabilizes on the eye surface using a dynamic resistance component for controlled pressure.

A surgical device retracting mechanism uses a guiding member to pull an endoscope holder along a fixed linear path for controlled withdrawal.

Segmenting the tool resolves the contradiction between small insertion size and distal dexterity for precise retinal procedures.

Diagonal slits convert longitudinal vibration into torsional motion, eliminating complex electric motors and improving reliability.

Balloon dilation of the ophthalmic artery increases blood flow and nutrient delivery, resolving insufficient perfusion in eye disease treatment.

Combining beta radiation with micro sclerostomy inhibits fibrogenesis and inflammation, maintaining drainage function while avoiding cataract risks.

Flexible gelatinous shunts eliminate rigid anchoring requirements, preventing cyclodialysis cleft and hypotony while maintaining stable fluid flow.

A surgical instrument with a rotatable side port and shape memory alloy distal section prevents retinal incarceration during subretinal fluid aspiration.

An illuminated scleral depressor directs light orthogonally via a beveled fiber and reflector, eliminating the need for a separate endoilluminator.

Segmented scleral prostheses restore accommodative power by using asymmetric geometry to prevent rotation and ejection during presbyopia treatment.

Elevating the resonant frequency above 32 kHz reduces chatter and heat buildup at the incision during phacoemulsification procedures.

Geometric-optic models integrate capsular bag geometry and haptic orientation to resolve insufficient accuracy in current intraocular lens selection methods.

A height-adjustable fluid source merges with a regulated air supply to maintain constant pressure, resolving gravity-feed limitations and equipment complexity.

Rotating the cam driver alters the follower interface radius to change the cutting duty cycle, reducing tissue disruption near the retina.

An array of glass micro-rods creates microscopic punctures in the cornea to enhance epithelial cell attachment.

Tilt detectors on corneal markers ensure accurate intraocular lens alignment by verifying horizontal orientation.

Active noise cancellation reduces ambient sound from cooling fans and probes, enabling higher power operation without adverse noise effects.

Processor detects extension tubing presence to configure vacuum surge parameters, resolving unreliable detection caused by modified flow characteristics.

Adjustable polarization filters reveal corneal lamellae orientation to resolve donor flap alignment errors in transplant procedures.

Elastomeric glaucoma shunt manages fluid flow through optimized drainage tube dimensions and fenestration patterns.

A variable tube exchanger folds intraocular lenses via elastic deformation for small-incision surgery.

A bypass device with reconfigurable prongs creates fluid channels through tissue to facilitate aqueous humor drainage into Schlemm's canal.

Reducing the slit piercing part cross-section prevents vitreous humor leakage by minimizing slit deformation during ophthalmic surgery.

A Fabry-Perot interferometer in an optical fiber tip measures intraocular pressure directly, resolving flow resistance errors from remote sensing.

A surgical handpiece integrates a cone-shaped sleeve to alter fluid flow paths during ultrasonic phacoemulsification.

Segmented plunger portions decouple to deploy the lens, reducing incision size and surgical complexity.

Replacing ultrasonic vibration with a rotary auger eliminates corneal burns while maintaining precise cataract removal efficiency.

Heat treatment relieves axial stress in the optical fiber to prevent thermal deformation and run-away heating in ophthalmic illuminators.

Transparent ophthalmic cassette uses a prism to redirect light for photo-detector fluid level sensing.