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.

A flexible endoscope uses a scanner to vary beam angles through an optical fiber.

Solvophobic linker compounds position reactive members at the device surface, eliminating complex cross-linking reactions during medical device activation.

Centrifugal spinning creates poly-4-hydroxybutyrate micro-fiber webs that overcome low elongation and acidic degradation of conventional surgical materials.

A disposable endoscope uses blue and white LEDs to illuminate tissue, paired with a backside-illuminated CMOS sensor for simultaneous image capture.

Users select a specific data center location for industrial measurement devices, ensuring regulatory compliance and reducing communication delays.

Locking mechanism on outer tubular pusher sleeve prevents premature elastic band deployment, ensuring controlled hemorrhoid treatment.

Flexible substrates and anti-vibration portions prevent bridging portion fractures from multidirectional ultrasonic vibrations.

A control vessel manages test fluid discharge from a reservoir to ensure accurate delivery onto medical test components.

Integrating a battery and printed circuit board into the housing removes cable constraints, improving ease of use during minimally invasive surgery.

Urea and succinic acid modify paclitaxel coatings to prevent unintended drug release during device insertion while maintaining stability.

A reusable fiber optic temperature probe uses a non-ferrous sensor to measure surface and body heat without electrical interference.

Coaxial gradient index lenses with differentiated refractive index constants minimize total aberration, enabling a smaller diameter rigid endoscope.

A stereoscopic endoscope uses a light-beam splitting element to refract optical paths and maintain parallax.

A medical device navigation method determines location using control variables and operative length.

A pressure sensing catheter measures abdominal force generated by involuntary coughs to assess neurological function.

A wireless ultrasound marker uses piezoelectric transduction to generate detectable signals for surgical guidance.

A female urine collection device creates a watertight seal around the urethral opening using a bulbous protuberance and partial dome portion.

Rotating elevator reaches attachment position, reducing manual time required to house small wire tips.

A telescopic sleeve extends an optical gear along a rigid shaft, resolving the trade-off between wide field of view coverage and device maneuverability.

Rigidly attaches miniscope to larger scope via integrated control assembly, eliminating torsional moments and operator fatigue during cholangioscopy.

Segmented gastric implant with through-holes prevents gastroesophageal reflux while maintaining weight loss effectiveness.

Angled projecting elements on a medical scoping device cover expand to dilate the lumen wall, reducing looping and improving visualization.

Sewn stitch patterns reinforce biotextile substrates to control mechanical pliability and tensile strength.

An ultrasonic surgical instrument employs a protective sheath on the blade to prevent breakage from bone contact while reducing user fatigue.

A display device estimates endoscope shape and calculates reliability values based on sensor accuracy.

A signal processing apparatus relays control signals between a controller and multiple processing modules using synchronized storage mapping.

Processor removes interference magnetic field components via calculated correction factors to improve capsule position detection accuracy.

A control method measures circulation conduit flow rates with an atmospheric open conduit closed and open to detect air in liquid.

Absorption-type filter prevents halation from laser light while maintaining compact length for minimally invasive procedures.

A magnetic ball calibration method aligns polarization using rotation detection data.

A processor calculates real-size distances from laser images, resolving measurement precision limits without increasing device complexity.

Color-coded light sources prevent spot confusion in extended reality devices, maintaining recognition accuracy while reducing power consumption.

Segmented cannula assemblies with asymmetric covers withstand repeated sterilization cycles while preventing internal reflection interference.

A trifurcated endoscopic device integrates annular illumination with nested imaging fibers to capture gross and cellular data simultaneously.

Stepped blades expand the small pupil to eight millimeters while a top band cushions the iris, reducing trauma during cataract surgery.

A rigid endoscope relay optical system uses elongate rod lenses with refractive index greater than 2 to maintain image brightness.

An optical adapter splits light signals to enable simultaneous laser speckle and video imaging through a single scope-camera interface.

A surgical retractor device displaces target tissue to create a controlled pathway for incision extension.

A guide tube presses a flexible endoscope against an inner surface to prevent unintended direction changes during sinus insertion.

An elastic connecting member bridges a shape-memory member and an inducing member, protecting electrical connections from damage during bending deformation.

A diffractive lens focuses broadband light to a single spot, improving axial and lateral resolution in miniature OCT probes.

Electrochemical anodisation creates micro/nanostructured titanium oxide surfaces that reduce bacterial adhesion and thrombosis risk in medical implants.

A magnetic capsule endoscope uses a 5-dimensional rotating field to position itself at a liquid-gas interface.

Nested catheter delivery reduces guidewire kinking while the hollow coil structure resists ureteral compression from cancerous growths.

A wearable sensor adjusts skin temperature readings using ambient data for continuous monitoring.

Distinct visual marks on the display identify whether images originate from direct or indirect reception, resolving source uncertainty.

Biodegradable polymeric membrane elicits fibronectin to prevent pneumothorax recurrence without chemical irritation.

Segmenting the demodulator into a replaceable antenna unit resolves cable deterioration issues while enabling flexible frequency band switching.

A sweat collector with a pressure element compresses the fluid volume between skin and sensors, reducing sampling intervals for faster biomarker detection.

A clot retrieval catheter uses a knitted basket to capture thrombi.