Surgery TRIZ Cases

Image-based geometric rules generate patient-specific spinal implants that improve fit, load transfer, and multi-planar correction.

An implanted catheter-port housing enables delayed, localized chemotherapy at the surgical margin to reduce recurrence and limit systemic toxicity.

A shaftless brushless motor uses the waveguide as a bearing to cut friction, remove blind spots, and enable uniform high-speed catheter scanning.

A latched sealing cap keeps tissue samples in separate holder compartments during transport, preventing migration after imaging.

A smooth receiving sleeve with internal locking elements prevents tissue trapping while supporting secure coupling and machine cleaning.

A remote light source and single-core fibre feed a branched rigid light guide, improving endoscope tip illumination while reducing heat and wiring.

Electrical impedance analysis of sweat supports continuous hydration and electrolyte tracking during activity without bulk sample collection delays.

A one-piece polymer endoscope tip integrates the nozzle and housing to improve humidity sealing, cut assembly complexity, and keep the tip compact.

Localized TRPC6 inhibitor delivery from stents or balloons limits smooth muscle cell migration to reduce neointimal hyperplasia and restenosis.

A porous, non-fully sealed interface lets sterilization fluid reach the distal end and lumen while preserving reliable port connection.

Light sent through the tube wall and emitted at the tip enables accurate position checks without X-ray exposure or optical fiber reinsertion.

A sliding guide, curved track, and roller assembly let physicians reposition an endoscope accessory channel with one hand for coarse and fine control.

A biased sleeve and pusher let endoscope tubes connect and disconnect quickly, improving assembly and maintenance operability.

Porous solid microneedles embed particulate drugs to raise loading, preserve stability, and penetrate skin without fragile solvent-based designs.

A dual-electrode sensor uses distinct membrane regions and coupled enzymes to measure glucose and ketones simultaneously with one wearable sensor.

Matched thermal expansion in cemented endoscope lenses preserves visible and infrared imaging quality after autoclave sterilization.

Frangible cover windows and a cannula let a rectoscope dilate the cavity and admit instruments while limiting fluid egress.

Flow-control spikes and insertion limits moderate vacuum pressure in PIVC blood draws to reduce hemolysis and vein occlusion.

A fitted tip cover holds cleaning solution on an eye-imaging lens long enough to clean thoroughly without leakage, scratching, or cross-contamination.

A threaded twist valve keeps preservatives sealed until release, preserving biomolecules at ambient temperature for safer sample transport.

An internal heated storage tank mixes and delivers 30-40°C wash water quickly while avoiding dual hot-cold network connections.

A roughened, mineral-exposed surface helps bioabsorbable biocomposite implants reach cortical-bone-like strength and improve bone attachment.

A multiplex urine cassette uses creatinine normalization to correct dilution effects and enable accurate at-home hormone monitoring.

A layered indicator article distinguishes amniotic fluid from urine immediately, cutting false positives and diagnosis time.

A cancellation signal is added to the drive waveform to suppress harmonic distortion, reducing heat, phase shift, and unwanted vibration.

Elastic membrane slits open a temporary passage for catheter re-crossing while the interseptal occluder maintains effective septal closure.

Open-loop calibration uses a target-derived inverse filter to linearize a MEMS intraoral OCT scanner without added feedback sensors.

A separate gatekeeper signal verifies sensor and cable compatibility and attachment before physiological data is accepted, preventing false readings.

A spaced blade and chamber opening improve bone particle entry and collection while simplifying manufacture and reducing trauma risk.

A hydrated copolymer coating retains aqueous liquid to cut friction in narrow bodily lumens while staying durably bonded under high load.

A Mg-Zn-Ca-Mn-Dy/Sr alloy balances implant strength, corrosion resistance, and biocompatibility through controlled composition and inert-gas atomization.

Angled LED lighting built into a disposable speculum improves internal visibility while preserving the clinician's line of sight and patient comfort.

A touch monitor adds a stopwatch button and timestamp table to live medical imaging, making procedural event timing easier to record.

Structured light imaging measures cervical dilation more accurately than manual exams while reducing discomfort, infection risk, and clinician time.

Upconverting nanoparticles enable thin, filterless intraoperative imaging that detects microscopic tumor foci and lymph node involvement in direct tissue contact.

Elastomer spacers keep the lithotriptor shaft separated from the lumen to cut friction, damp vibration, reduce wear, and aid fluid flushing.

Controlled test gas injection and cavity analysis improve leak detection precision in hollow organs by maintaining a stable pressure difference.

A dual-sheath sleeve with annular seals maintains irrigation flow, cools the ultrasonic tip, limits leakage, and clears debris.

Mechanical oscillation removes cartilage and subchondral bone with less excess removal, soft tissue trauma, and joint manipulation.

A deformable mesh sleeve filters solid debris during suction, reducing cannula clogging while allowing fluid removal and atraumatic tissue handling.

Adjustable oscillation angle and tool exposure improve bone cutting precision while reducing tissue wrapping around the surgical head.

A cutout-linked resin path fills multiple module spaces as one continuous mass, removing interfaces and improving sealing reliability.

An elastic slit membrane enables device re-crossing after septal closure while preserving secure anchoring and reliable occlusion.

A beak-like folding and spring spreading mechanism holds the sliding part open for simpler cleaning without accidental locking.

A skin-worn alcohol sensor enables continuous, noninvasive intoxication tracking with real-time alerts and predictive analysis.

A double-valve projectile path control scheme varies impact speed and operating frequency without changing pneumatic pressure.

A rhenium alloy frame enables smaller crimp diameters with less recoil and lower metal ion release while preserving device strength.