Eye Surgery TRIZ Cases

Mechanical trephines cut opaque corneas without lasers, eliminating optical complexity.

A device measures contact angle hysteresis on live cells using immiscible liquids to assess ocular surface properties without disrupting membranes.

Temperature-responsive distal tips switch rigidity to open valved cannulas without trauma, then soften for delicate eye tissue manipulation.

Tapered wall thickness variation impedes irrigation fluid forward flow while allowing independent phaco tip rotation.

A 3D porous scaffold replicates physiological outflow pathways, enabling accurate glaucoma therapeutic screening.

Segmenting training data by lens type prevents domain shifts, enabling accurate position prediction with limited datasets.

A tapered lacrimal duct tube with a large inlet port enables direct endoscope insertion without a sheath.

A glaucoma implant plate uses inner and outer ridges to regulate aqueous fluid drainage through the device.

A pulsed fluid delivery system separates vitreous tissue from the retina using controlled pressure pulses through a flexible catheter.

Polyurethane internal coating reduces friction in intraocular lens cartridges for smoother insertion.

A corneal-mounted valve regulates intraocular pressure using a mobile stem mechanism.

Pre-operative eye images calculate intraocular lens power and axis orientation to generate a surgical placement guide.

Actuation handle insert uses rolling elements on inclined ramps to push the actuation tube forward for device activation.

A corneal irrigation cannula uses a rough-surface region to scrub and detach intracorneal pigments via mechanical abrasion.

Pulsed fluid delivery manages cavitation clouds that disrupt flow stability, improving tissue removal efficiency in high-power phacoemulsification.

Spacer maintains precise gap between oscillating needle and casing end, preventing contact noise and damage.

Porous tubular fiber walls enable cell ingrowth for secure implant retention while preventing fibrosis and scar tissue formation that obstructs fluid drainage.

Drain conduit positions above aspiration exit to direct gas and debris away from the chamber.

Synchronized light pulses eliminate motion blur from oscillating surgical tools, maintaining a clear operating field for precise dissection.

An integral fluidic piloted valve in a vitrectomy probe directs pressurized fluid to the actuator, increasing cut rate capacity and reducing traction.

Stabilizer immobilizes injection needle during subretinal fluid delivery, preventing retinal tearing and dosing errors from manual control.

A motor-driven flexible band compresses an infusion bag to regulate irrigation pressure in ophthalmic surgery.

A robotic tool mount uses front and rear rollers to secure surgical tools, reducing manual handling complexity in cataract removal procedures.

An intermediary cannula enables direct visualization during subretinal fluid drainage, preventing iatrogenic retinal breaks and hemorrhage.

A pressure sensor measures intraocular pressure during phacoemulsification to generate real-time stability scores and graphic representations.

Targeted microbubbles activated by ultrasound waves break down cataracts with lower energy, reducing damage to surrounding eye tissues.

A footswitch calibration system modifies movement responses to compensate for mechanical irregularities.

A segmented intraocular shunt inserter places an outflow end in Tenon's capsule to reduce tissue irritation while maintaining effective pressure reduction.

Implant replaces suture tension with self-regulating radial force to reduce intraocular pressure.

An interferometric optical sensor detects surgical tool forces via reference distance changes.

Dynamic alarm thresholds based on patient-specific blood pressure prevent retinal microcirculation blockage during ophthalmic surgery.

Varying bristle lengths in a self-administered eyelid brush exfoliate the margin to remove biofilm, addressing inadequate cleaning from traditional methods.

Segmented teeth with rounded edges support the retina while sharp tips cut connective tissue, preventing retinal injury during membrane removal.

A tea tree, neem, and coconut oil eyelid scrub composition treats Demodex blepharitis by combining antimicrobial oils with soothing agents.

An integrated intraocular delivery device uses a dynamic resistance component to control needle deployment through the eye wall.

Gradual jaw closure via an actuation sleeve minimizes trauma when separating tissues with convex geometries like the retina.

Telescoping cannula maintains co-incident distal ends with the optical fiber, resolving the contradiction between small incision size and structural strength.

A deployable wicking member holds tissue adhesive at the instrument tip, eliminating the need for prolonged patient positioning after retinal surgery.

Diameter mismatch between base and cap creates centering force that closes the slit, preventing vitreous humor leakage during ophthalmic procedures.

An absorbable bioactive glass shunt lowers intraocular pressure without permanent implantation risks, eliminating the need for removal surgery.

Automated eyelid opening reduces cross-infection risk and operator burden by replacing manual handling with a closed-loop control system.

Deflecting member routes signal light to OCT without attenuating observation intensity, resolving beam combiner trade-offs.

Segmented cutting tool design increases fluid flow through vitrectomy probes by reducing internal obstruction.

A single reflux bulb and manifold system displaces irrigation fluid to maintain consistent reverse flow in aspiration lines.

Threaded anchors secure lacrimal inserts to prevent drug overflow and dilution.

An arcuate ramp in the pump head controls compression rate to mitigate pressure fluctuations that damage the eye during aspiration.

An ab-interno ocular delivery system provides precise fluid access to Schlemm's canal through a minimally invasive catheter mechanism.

An adjustable support frame reduces tip play in small gauge ophthalmic instruments by dynamically increasing shaft rigidity during vitreous surgery.

A head-up display unit mounted on a microscope projects real-time visual feedback directly into the surgeon's field of view.