Eye Surgery TRIZ Cases

Reducing the inner diameter below 0.05 inches increases fluidic resistance, minimizing vacuum surges that cause cornea collapse when occlusions clear.

Dual pressure sensors detect occlusions via differential measurements, preventing post-occlusion surges that cause eye trauma during cataract surgery.

Twist picks anchor the device while side grooves align instruments, resolving the trade-off between stable eye fixation and precise tool positioning.

Customizing intraocular lens characteristics using biometric parameters and regression formulas to predict postoperative conditions.

Different surface roughness values create lubrication fluid retention spaces that prevent haptic adherence to the optic zone, reducing surgical waiting time.

Alternating optical assemblies on microscope eyepieces generate stereoscopic images for augmented reality surgical visualization.

A phacoemulsification sleeve combines irrigation and aspiration ports into a single handpiece attachment.

A rack and pinion mechanism advances an intraocular lens plunger for precise axial positioning.

Multiple optical fibers within a cannula transmit distinct angular light profiles to enhance intra-operative visualization.

A positioning camera on a robotic arm calculates focal length to determine patient eye level relative to a fixed datum.

Angled serrations increase contact area to resolve poor gripping of ocular membranes caused by perpendicular tooth orientation.

Thermal conductivity measurement verifies intraocular gas concentration by detecting temperature changes, resolving manual mixing accuracy issues.

Non-metal ultrasonic needles reduce thermal damage and drive power requirements by substituting metal materials with low-density polymers like PEEK.

Intraoperative keratometry using Placido ring reflection eliminates cyclotorsion errors from pre-surgery biometry to ensure precise IOL alignment.

Polarized piezoelectric crystals induce torsional motion in the cutting needle, enhancing emulsification efficiency and tissue removal effectiveness.

Interconnected microchannels in a flexible meshwork reduce fibrotic encapsulation and inflammation, improving long-term drainage reliability.

A surgical handpiece uses a controllable fluid flow restrictor to manage irrigation and aspiration rates during cataract surgery.

A retractable beamsplitter delivers collimated light beams to a microscope subject surface.

A motorized intraocular lens inserter uses a hydraulic balloon to push the implant through small incisions.

A capillary valve regulates fluid flow using angled hydrophobic surfaces to maintain an air-water interface at a specific cracking pressure.

A method determines check valve cracking pressure by incrementally pressurizing the fluid container and monitoring vacuum levels at the handpiece tip.

A sutureless intrascleral haptic-hook lens implantation method bends and folds the haptic into a scleral groove for secure fixation.

A phacoemulsification tip uses internal ridges to direct lens fragments toward the aspiration tube.

Mechanical treatment device exfoliates devitalized cells from the eyelid margin to facilitate meibomian gland secretion transport.

Sliding neck portions into a tubular body adjusts the gripping force of ophthalmic tweezers for precise surgical manipulation.

A surgical control system detects aspiration occlusions using real-time vacuum pressure derivative calculations.

Ridge and groove seal in thickened infusion sleeve reduces forward irrigation leakage, maintaining eye tissue hydration and preventing surgical damage.

An insertion apparatus uses alignment features to position an implantable therapeutic device, addressing eye movement challenges during ocular procedures.

An elastic rim seals the cryotip to tissue, preventing barotrauma from expanding cryogenic gas while enabling precise cooling.

Convolution function assemblies process irrigation fluid signals to detect occlusions in ophthalmic surgical devices.

A surgical robot uses strain sensors to detect lateral forces on a tool shaft and adjusts motion via feedback control.

A structured illumination probe uses a distal microlens array to scatter light into complex patterns for surgical visualization.

Crimping the distal tip creates multiple external edges that enhance cutting efficiency while maintaining anterior chamber stability.

An intraocular tool uses a nested core that extends past the probe tip to reach posterior chamber contaminants without damaging delicate lens structures.

A portable headset device uses HEPA filtration and laminar airflow to create a sterile environment at the patient's head level.

Annular ink reservoir applies surgical ink to the cornea, enabling non-invasive testing of visual outcomes before permanent implantation.

Actuating a displaceable portion via magnetic fields clears debris buildup, restoring flow capacity in ocular implants.

A tissue removal device uses vacuum pulses and localized heat to fragment cataract material through a cannula.

Asymmetric punctal plugs anchor in lacrimal ducts to deliver therapeutic agents, reducing systemic side effects from eye drops.

Beta radiation applied during glaucoma surgery prevents postoperative scarring that typically impedes fluid drainage and causes bleb failure.

An optical unit forms an exit pupil and relays it to a conjugate position for independent imaging section movement.

A hinged shuttle folds an intraocular lens within a protective lumen, reducing damage risks during insertion through smaller incisions.

Extracting the device from vascular tissue prevents healing blockage while avoiding corneal endothelium damage during insertion.

A cantilevered diaphragm retainer ring increases creepage and clearance margins to prevent misalignment during ultrasonic welding.

A pneumatic tissue removal device uses vacuum pulses and a thermal element to fragment cataract material without ultrasonic energy.

An expandable net prevents nuclear fragment migration into the vitreous body by providing continuous structural support behind a torn posterior capsule.

Segmented electrodes apply phase-controlled voltages to create transverse motion, reducing mechanical loss in phacoemulsification needles.

An intermediary mesh barrier intercepts pressure-induced tissue movement, preventing iris prolapse through surgical incisions while preserving access.