Eye Surgery TRIZ Cases

This AIOL delivery assembly uses nested motion to improve placement reliability while limiting incision size and tissue damage.

A dual-frequency LC circuit tunes piezoelectric needle vibrations to balance cataract disintegration, cavitation, and incision-site heating.

This ophthalmic system modulates light intensity and timing to replenish oxygen while strengthening corneal and scleral collagen.

A saline- or air-filled balloon seals retinal holes externally, reducing incisions, muscle stretching, and vitreous interference.

A ramped interior surface lifts and guides the leading haptic above the optic, improving IOL folding and implantation precision.

This case uses a single-handed catheter and viscoelastic fluid to dilate Schlemm’s canal and improve aqueous humor drainage.

A flexible blunt disruptor removes trabecular meshwork atraumatically, reducing bleeding and collateral damage during aqueous drainage.

A friction-fit wavy release wire stabilizes shunt-arm placement while reducing dislodgment risk along curved delivery paths.

A detachable limiting member stabilizes the lens, restrains haptics, and prevents plunger over-extension during safe injection.

This case shows how actuated flow controls adapt glaucoma shunt resistance to changing pressure and reduce hypotony risk.

Gaze tracking positions blue light on the optic nerve head to stimulate melanopsin while minimizing exposure to image-forming receptors.

A surgical robot uses combined translation and rotation to move its instrument manipulator to standby, freeing space for manual surgery.

A reciprocating tool holder drives blade oscillation for smooth lens capsule cutting while reducing mechanism complexity and tear risk.

This ocular implant uses shell thickness, permeability, and release regions to target drug delivery and help manage intraocular pressure.

Curved geometry and camming surfaces guide ocular implants into Schlemm’s canal, supporting controlled delivery and aqueous humor drainage.

A control unit adjusts surgical microscope illumination by observation mode to protect the retina and digital image sensor.

An off-axis flared needle and ribbed infusion sleeve balance lens emulsification, manufacturability, and thermal protection.

A contoured eye syringe stabilizes the eye and retracts the eyelid for precise injections.

A spiral release mechanism guides capsular tension ring placement while limiting stress on the fragile capsular bag.

A modular surgical basket uses grooved levers, a bearing, and a hub to ease actuation and assembly during surgical procedures.

Shape-memory actuation rotates a control element for remote intraocular shunt flow adjustment, avoiding repeated surgery.

A piston pinch valve and flow restrictor slow pressure release, stabilizing irrigation during cataract surgery.

Bellows transfer fluid to adjust lens power, improving focus and implant stability.

Reciprocating piercing enables precise glaucoma drainage channels with less tissue trauma.

A textured grip with luer fittings connects the syringe and cystotome, improving rotational control during capsulotomy procedures.

A universal tool collar and actuated mounts enable rapid, repeatable exchange through limited intraocular entry sites.

A stepped or tapered bore delivers more gas near the console while keeping the instrument end flexible and lightweight.

A pressure sensor and solenoid valve limit vacuum surges during phacoemulsification.

A haptic optic management system uses rotary arms to fold IOL haptics, enabling compact delivery through a small surgical incision.

Independent slide mechanisms let the reinforcement sleeve cover the needed length while reducing pipe curving and friction.

A drive-and-driven delivery assembly supports precise shunt placement, while priming ports reduce resistance before implantation.

A diverting tube, electrolysis chamber, electrodes, and sensor convert aqueous humor to gases for continuous intraocular pressure control.

Manual capsulorhexis can decentralize lenses; robotic diathermy centers the cut.

This case combines IOP deviation, ultrasonic energy, and balanced salt solution use to assess phacoemulsification impact.

This mechatronic system automates focus and field adjustments, reducing surgeon distraction through voice control and magnetic coupling.

A porous lumen supplies tear-film moisture while resisting bacterial ingress and helping maintain normal intraocular pressure.

Elastic arc sections compress for insertion and expand to hook the iris, easing surgery when the pupil is poorly expanded.

After vitrectomy, a temporary trial lens stabilizes the capsule for precise biometry and improved IOL selection in retinal conditions.

A cannula and collapsible balloon deliver fluids or devices ab-interno to dilate Schlemm’s canal and improve aqueous outflow.

A combined surgical tool enables viscoelastic injection and handling without tool alternation.

Curved cutting parts create circular capsule openings for stable lens positioning.

A preloaded IOL cartridge, lens holder, and retention nut reduce manual handling while preserving orientation during sterile delivery.