Eye Surgery TRIZ Cases
- Cataract Monitoring and Treatment Apparatus
A cataract treatment apparatus uses a dichroic beam splitter to direct monitoring and treating light along a common optical axis.
- Glaucoma Tube Implant with Magnetic Bistable Switch
A glaucoma drainage tube uses a magnetic bistable switch to modulate aqueous flow through the implant.
- Stent Shunt for Intraocular Pressure Equilibrium
A stent shunt fluidically connects the intravitreal cavity to the subarachnoid space.
- Ophthalmic Cutting Device Pressure Sensor Leak Detection
A vitrectomy cutting device integrates a pressure sensor in the fluid flow channel to measure operating pulses and detect system leaks.
- Ultrasonic Vitreous Sampling and Drug Delivery
Acoustic vibration liquefies vitreous gel for simultaneous aspiration and injection, stabilizing intraocular pressure to prevent iatrogenic glaucoma.
- Eyelid Opening Device with Elastic Sheet for Ophthalmic Surgery
An elastic sheet connects upper and lower rings to maintain eyelid separation during ophthalmic procedures.
- Vitrectomy Probe Friction Reduction via Seal Segmentation
Segmenting seals reduces friction in the vitrectomy probe, enabling higher cut rates for ophthalmic surgery.
- Intraocular Implant Groove Capsulotomy Engagement
A peripheral groove engages the capsulotomy lip to secure an intraocular implant, reducing posterior capsule opacification risk.
- Automated Non-Linear Sensor Calibration via Multi-Point Pressure
Automated calibration method establishes mathematical relationships between measured and actual pressure values using a known good reference sensor.
- Burst Mode Vitrectomy System Reducing Retinal Traction
A vitrectomy probe uses burst mode cutting to manage traction forces during surgery.
- Magnetic Field Location Pad for Ophthalmic Instrument Tracking
A flexible location pad with field-generators tracks medical instruments via magnetic fields, resolving tissue obstruction during ophthalmic procedures.
- Laser Welded Ophthalmic Needle End Cap
Laser welding joins a thin end cap to a narrow needle, increasing cutter travel distance for closer retinal access.
- Phacoemulsification Needle with Transverse Longitudinal Motion
Alternating piezoelectric activation creates transverse sanding and longitudinal aspiration cycles that clear occlusions while maintaining productivity.
- Pneumatic Vitrector Power System High-Speed Valve Control
An isolation valve feeds an output valve that alternates gas flow between ports, enabling 5,000 cuts per minute while minimizing component count.
- Robotic Eye Surgery System Scaling Physician Movements
A robotic eye surgery system mirrors and scales down physician movements from a model tool to an actual surgical instrument.
- Infusion Aspiration Tip Sealing and Perpendicular Flow
Nested disposable tips seal sleeve gaps and direct perpendicular flow, eliminating capsular bag trauma from micro burrs.
- Potentiometer Cassette Alignment Detection
Potentiometers detect cassette attitude within a phacoemulsification console receiver to ensure precise fluid pathway alignment.