Eye Surgery TRIZ Cases

A trocar system integrates a drive mechanism to advance multiple cannulas simultaneously through a single handle.

A pressure-driven membrane valve deflects to regulate fluid flow through a reference chamber and channel.

Dynamic tab member transitions between relaxed and deformed states to maintain scleral stability without external forceps.

Calculates color diversity from interference fringe images to evaluate tear fluid state objectively.

A rotatable disk valve mechanism adjusts fluidic resistance in an implantable ocular drainage system to prevent hypotony and fibrosis complications.

A method for determining intraocular lens power using nucleus-centric distance measurements.

Implantable porous devices concentrate macrophages to reduce drusen and inflammation, eliminating repeated injections.

An automated dual pump aspiration system switches between volumetric and vacuum modes to prevent pressure surges during tissue fragmentation.

A hollow needle features a conically shaped suction channel and serrated ultrasound emission surface for lens fragmentation.

A multi-layer infusion sleeve combines PTFE and Dacron materials to reduce frictional heat during phacoemulsification procedures.

A refractometer aligns with the eye visual axis using Purkinje image detection for precise refraction measurement.

A pre-alignment shelf guides surgical cassette insertion into a phacoemulsification console receiver.

A control system filters raw flow signals using median algorithms to remove air bubble disruptions.

A gonio lens system with a stabilization mechanism controls eye positioning during ocular procedures.

A medical cooling device uses a generator to supply energy to a medium for thermal contact with tissue.

Angled pressure plates enable perpendicular access to meibomian glands for effective self-treatment of dry eye conditions.

A haptic optic management system folds intraocular lenses through a clip and elastic plate mechanism.

A point light source and parabolic reflector generate a parallel light curtain to illuminate a surgical fluid chamber.

Vibrating flow generator creates supplemental irrigation fluid through acoustic streaming to stabilize surgical site pressure.

A corneal linear axis marker creates precise linear marks on the eye surface using a planar base and central opening.

A vitreoretinal surgery device uses a selecting unit to arrange surgical instruments within a cannula.

Compressed air drives a rotary element to rotate the inner tube against the outer tube, reducing manufacturing complexity in vitrectomy instruments.

An asymmetric injection chamber prevents sensor rotation during delivery, enabling accurate intraocular pressure measurement without choroid damage.

A vitrector inner tube conducts light from the proximal end to the distal end using optical materials.

A flexible blunt-tipped shaft retracts into an outer tube to manipulate the retinal surface safely.

Segmented implant with fenestrations and extruded pegs creates a controlled fluid pathway to reduce intraocular pressure while preventing tissue occlusion.

An elastomeric surgical tip with an abrasive surface mechanically abrades the trabecular meshwork to restore aqueous humor drainage.

Oscillating cams drive a lead screw to rotate a mechanical interface, resolving manual syringe imprecision in ophthalmic surgery.

A scleral marking instrument uses two distinct pointers to create depressions on the eye surface.

A hydrogel ocular implant expands to guide aqueous humour into the suprachoroidal space, eliminating external filtering blebs that cause scarring and infection.

Shape memory actuation rotates a control element to change aperture resistance, reducing hypotony risks from invasive glaucoma shunt adjustments.

A hybrid phacoemulsification needle uses a polymer overmold on the distal edge to protect delicate eye structures during ultrasonic vibration.

A porous polymer substrate retains stem cells within ocular tissue using a roughened apical surface, addressing low retention rates in cellular therapy.

A one-step vitrector integrates a pneumatically driven guillotine cutter with an aspiration line to sever and remove vitreous floaters through a single incision.

A beveled optical fiber end face deflects light beams away from microsurgical instrument shafts to improve angular distribution.

Magnetic attraction maintains light guide position at focal point, preventing detachment during tensile stress.

Rotating haptics adapt to capsulotomy geometry, preventing iris chaffing and reducing capsular bag tearing risks.

A controller estimates intraocular pressure by measuring infusion and aspiration flow rates to regulate fluid delivery during surgery.

Prestretching the oblate bulb reduces its thickness for easy passage through the duct, then elastic recovery secures the lock without prior dilation.

A variable-rigidity small-gauge illuminator cannula extends and retracts to adjust mechanical stiffness for surgical tissue manipulation.

Arcuate levers simplify actuation by merging components, reducing structural complexity in surgical instruments.

A thin gauge surgical probe incorporates a retractable reinforcing sleeve to provide structural support during insertion.

Magnetic engagement secures a flexible lacrimal stent in the lacrimal sac, eliminating complex mechanical anchoring and reducing placement complexity.

A segmented ocular implant with alternating spines and frames supports Schlemm's canal tissue to increase aqueous humor outflow facility.

A control unit adjusts vertical magnification to compensate for stereoscopic effects in ophthalmic surgery microscopes.

An optical imaging system evaluates particle kinematics to detect aspiration line occlusions in real time during cataract surgery.

Automated fluid delivery apparatus maintains intra-ocular pressure using a pressurized gas reservoir, resolving manual syringe precision errors.

A continuous iris-expanding ring transitions from a collapsed to an expanded configuration to maintain the pupil in an extended position.

A face shield uses a U-shaped headrest to secure a surgical drape without adhesive contact.