Eye Surgery TRIZ Cases

Channeled and flat plates mix solid and liquid materials in a surgical hand piece, supporting predictable, efficient retinal patch delivery.

A detachable lens limiter stabilizes the intraocular lens, blocks plunger overtravel, and prevents front-haptic straightening during injection.

A circumferential horn groove at an L-T vibrational node promotes constructive mode interaction, increasing T-mode torsional stroke.

Independent feedback tuning keeps longitudinal and torsional modes near resonance in a piezoelectric handpiece, improving phacoemulsification efficiency.

Multiple sidewall openings route aqueous humor from the anterior chamber to a bleb, helping maintain drainage when scarring or blockage threatens outflow.

A permeable ocular implant delivers drugs locally and continuously, reducing high concentrations and systemic side effects.

Dynamic frequency control tracks needle resonance during cataract removal, maximizing stroke length while reducing thermal stress on the eye.

An integrated scale on a handheld ophthalmic instrument measures macular holes during surgery without additional imaging.

A dual-loop ophthalmic tool creates an ILM flap and grasps it with limited force to reduce retinal tearing during peeling.

Tissue-inhibiting surface pores block ingrowth while coupled interior pores keep aqueous humor moving through a rigid scleral space implant.

An insert-molded polymer hub joins a metal cannula to transmit ultrasonic energy while supporting a cost-effective single-use needle.

An auto-retracting introducer and singulation actuator deliver multiple ocular implants through one incision without removing the apparatus.

A movable attachment changes nozzle protrusion for shallow or deep insertion, helping reduce incision size while maintaining lens capsule guidance.

Expandable cutting loops fragment cataracts inside the eye, enabling manual removal through a small incision with lower cost and recovery burden.

The open-channel plate routes excess aqueous humor through an intersecting grid to address difficulty maintaining normal eye pressure.

Viscoelastic material opens aqueous humor outflow pathways in Schlemm’s canal, helping reduce elevated intraocular pressure.

Compressed-air actuation and a calibrated piston regulate surgical pinch-valve speed to limit water hammer and patient discomfort.

Nesting a camera within the surgical probe enables real-time vitreous inspection and detection of residual cataract fragments through a small incision.

Vacuum-triggered trajectory switching dislodges particles stuck to the phacoemulsification needle, reducing lollipop-effect risk during removal.

A compact handheld cutter uses an integrated compressor, reservoir, and pulsed air valve for standalone vitreous removal.

An integrated magazine holds multiple trocars for controlled eye incision, reducing repeated grips, material costs, and packaging complexity.

A ramp and two lateral blades guide complete trabecular meshwork removal in Schlemm's canal while minimizing adjacent-tissue trauma.

Edge rollers manage haptic extensions and optic alignment while folding an IOL for delivery through incisions as small as 2 millimeters.

Rotating the cannula while advancing the implant enables one-operator alignment with Schlemm’s canal and automatic release at deployment.

Pressure sensors compare cassette readings with predetermined values to identify cassette type and monitor irrigation fluid depletion.

Multiple hydraulic diaphragms maintain cutter force and reciprocation while reducing vitrectomy probe diameter for finer surgical control.

Flexible blades create cannula-matched incisions, then deform through the inner diameter for precise obturator withdrawal.

A ramping feature guides the sealing assembly into the drainage-channel inlet or outlet, improving seal integrity and titratable fluid flow.

Real-time imaging monitors robotic tool commands and restricts rotation and translation around the incision pivot to prevent enlargement.