Surgery TRIZ Cases

A torsional transducer assembly creates a standing wave along the central axis to drive rotational motion in an ultrasonic surgical handpiece.

Angled folding hoops expand the distal tip to ingest large clots without compression, resolving navigation and aspiration trade-offs.

An endoscope system corrects chromatic aberration of magnification using coordinate information from existing red, green, and blue light sources.

Modified cobalt-nickel-chromium-molybdenum alloy reduces titanium nitride inclusions to improve surface finish during cold drawing.

Curved interchangeable retractor blades configure shell geometry to minimize soft tissue encroachment during expansion.

Replacing the finger hook adjusts the rotational movement range of the elevator lever, accommodating different user preferences and medical procedures.

Elastomeric covering on syringe plunger tips reduces friction against barrel walls while isolating sensitive substances from silicone contamination.

A skin care device uses spaced contact and sensing terminals to measure skin moisture and oil levels while applying electrical stimulation.

A panning stereo endoscope uses independent optical channels to rotate the view while keeping the image upright.

An optical shielding member prevents nozzles and treatment instruments from entering the side viewing field, preserving light adjustment accuracy.

Disposable urine collection device featuring a flexible connecting arm that adapts to patient body shapes for ergonomic handling.

A wire belt retractor forms an adjustable loop to hold surgical incisions open during operations.

A rotatable arm with a rest seat supports laser heads on dilator bodies, maintaining unobstructed operator views during precise cavity inspections.

A catheter system uses a proximal magnet and Hall-effect sensor to verify secure locking in the receptacle.

A multi-lumen surgical access device uses a tapered distal port to direct fluid flow for lens cleaning.

Inflexible adhesive bonds optical fibers in the distal end region, protecting them from deformation and friction damage while maintaining light transmission.

Contrast markers on the outer tube provide visual orientation feedback, eliminating complex multi-angle X-ray imaging for plaque removal.

Shear-thinning hydrogel prevents post-operative adhesions by maintaining reliable tissue separation without rapid degradation.

An endoscope apparatus synchronizes illumination patterns with an electronic shutter to ensure uniform exposure across all image sensor lines.

A microneedle chip with a tapered capillary bore extracts interstitial fluid via passive capillary action, avoiding mechanical suction and clogging risks.

Portable wearable device detects disease-specific antibodies and proteins in small sweat samples using integrated assay units.

Segmented instrument passages and optical position indicators resolve the trade-off between structural complexity and operation efficiency in soft endoscopy.

Endoscope system processes digital image signals with pseudo-random sequences to prevent electromagnetic interference during transmission.

Integrated washing and disinfection units process medical instruments automatically, eliminating manual handling and cross-contamination risks.

A vascular occlusion device uses a barrier liquid to prevent surgical glue from hardening inside the delivery duct.

An optical scanning endoscope adjusts its drive signal using measured electric current values to maintain a consistent scanning range.

Segmenting the fiber into thousands of cores resolves the trade-off between device complexity and imaging resolution in narrow medical scopes.

A pressure-regulating implant uses a flexible resistance member to maintain close apposition with the brain surface.

An actively cooled transplant system uses a pumping unit and refrigeration to circulate fluid through integrated pouch tubes for precise temperature control.

An intermediary connector prevents foreign matter contamination at electrical joints while maintaining reliable signal transmission.

Precise polydioxanone fiber parameters balance strength retention with complete absorption, eliminating chronic pain risks from permanent implants.

A ureteral plug occludes the lumen to flush calculus from the renal pelvis.

A wireless endoscope assembly uses dynamic operation switches to establish radio connections and perform image acquisition without dedicated communication buttons.

A nested needle housing delivers medical adhesive through radial apertures to seal subcutaneous tissue around a blood vessel puncture site.

A handheld electrical stimulator uses a processor to deliver specific waveforms through programmable electrodes.

Graphene oxide reinforcement boosts pHEMA hydrogel strength without sacrificing swelling capacity or biocompatibility.

Layered jaw with PEEK surface on PTFE base resists abrasion and dissipates frictional heat from ultrasound vibration.

Intermediary base station synchronizes patient data from implanted regulator to remote programmer, eliminating physical visit requirements.

A blood inspection device uses a single slidable discharger to eject both the sensor and filter units from its cylindrical housing.

Contact sensors on the ultrasonic probe measure bending state and pressure distribution, generating a bull's eye map that resolves uncontrolled bending risks.

Partitions separate pulling sections to prevent mechanism interference while restricting portions constrain movement ranges for precise bending control.

A self-inflating intragastric balloon uses a polymeric wall to gain volume through carbon dioxide diffusion.

Segmented seams and matched thermal expansion materials join endoscope windows to mantles, preventing autoclave fissures.

A blood information measuring apparatus automatically switches wavelength sets to capture tissue images for oxygen saturation calculation.

A measurement device tracks arterial wall movement, blood flow rate, and pressure to assess renal denervation treatment effectiveness.

Amorphous silicon oxide and nitride thin films deposit onto metal substrates to scavenge reactive oxygen species and accelerate bone healing.

Segmented funnel and container components direct urine flow through gravitational force, eliminating direct contact risks during collection.

An automated stainer displays predicted staining results before processing samples.

A coupling part with engaging members connects an endoscope elevator lever to a rotational movement member, eliminating tools and screws for faster assembly.