Surgery TRIZ Cases

Liquid adhesive fills spacing within cup-shaped housing to embed camera assembly, reducing outer diameter below 3.3 mm while maintaining electrical insulation.

A movable plug in an endoscope suction valve opens or closes a vent inlet to control fluid flow without obstructing the main interior passage.

A dual-function cutting instrument sizes osteochondral plugs using a bore, paring slot, and trimming channels.

Connecting ribs between inner and outer tubes manage thermal expansion during autoclaving, preventing adhesive joint failure.

A motorized peg plate and auxiliary camera record instrument motion for neurosurgical training.

Decellularized tissue manifolds manage seromas by integrating with host tissue, eliminating the need for removal and reducing infection risk.

Nanostructured K2W7O22 crystals detect acetone via chemiresistive changes at room temperature, eliminating high-power heating requirements.

Host system tracks sample barcode input history across multiple pretreatment units to coordinate aliquoting operations.

A polarization beam splitter divides light into white and narrow-band paths, reducing device complexity while maintaining dual observation capabilities.

Display control portion maintains captured image orientation while rotating superimposition information layers.

A tissue specimen retrieval bag uses a distal cinch tab to constrict the open end for secure containment.

Segmented shape-memory members heated independently resolve the contradiction between precise stiffness control and structural complexity.

A detection device calculates maximum Lyapunov exponents from heartbeat information to assess subject feelings.

A biodegradable magnesium alloy uses calcium and HCP metal elements to boost mechanical strength without forming precipitated phases.

A steering handle uses a guide rail and sliding block to control catheter bending with high precision.

A drive device moves an optical filter using a protruding portion and groove portions to achieve precise positioning.

A rotatable endoscope coupler uses ceramic ball bearings to enable single-handed scope rotation while maintaining structural integrity.

Molded exterior housing encloses the camera assembly with hardened adhesive, eliminating slow UV curing and reducing operator skill requirements.

Color tone conversion unit processes narrow band images to distinguish non-tissue objects from blood vessels.

Segmented guide portions position and fix a bent guide member, preventing deformation and positional shifts that occur when treatment tools are pulled off.

Color-coded labels and alignment indicators on EEG electrodes ensure correct placement, preventing misplacement errors during monitoring.

Segmented layers with tailored polymer properties manage drug availability while preventing toxic side effects from burst release.

Curved gripping jaws with a closing spring secure ticks without squeezing, preventing pathogen transmission during removal.

Silane coupling agents chemically anchor polymer chains to metal surfaces, preventing peeling and maintaining sliding properties under stress.

A rotatable observing member inside a capsule body adjusts its optical axis to image axial and inner wall directions using a single lens system.

A stereo-video endoscope optical system uses a deflection prism group with specific angle geometry to direct light paths for lateral viewing.

A light source apparatus uses a digital mirror device to control illumination light quantity distribution across emission units.

A passive planar thermo-optical converter transforms subcutaneous thermal signals into visible color images for precise allergy assessment.

A tilting bending lever drives a wire pulling member to guide operation wires through pulleys for precise endoscope insertion section control.

Implantable acoustic sensors detect early cartilage degradation signals to prevent osteolytic lesions and revision surgeries.

Prism divides light into narrow, broadband, and infrared components to resolve resolution versus color reproduction trade-offs.

A surgical instrument waveguide transmits ultrasonic vibrations to an end effector for tissue coagulation and cutting.

Transparent elastomer cover transmits visible light through opaque fluids to enable clear endoscopic imaging without saline inflation.

Nested delivery catheters allow sequential filter exchange through a single sheath, reducing procedure time and eliminating risks from occluded filters.

A cleaning apparatus judges lid closure before disinfection driving to issue warnings for premature opening.

A disposable hydro-jet endoscopic capsule uses water jets for lateral movement to capture gastric images without complex sterilization requirements.

Magnetic assembly of modular capsule endoscope components overcomes passive movement limitations, enabling active navigation and targeted lesion intervention.

A vascular probe uses a balloon and deflector to occlude blood flow and remove fluid from the imaging field.

A fixed positioning member aligns optical and ultrasound transmitters in a catheter housing, resolving manufacturing precision challenges during assembly.

Covalently bonded polyethylene glycol layer on titanium housing reduces tissue adhesion, enabling easier extraction of chronically implanted pacemakers.

A coplanar sensor image capture unit uses a common front end optical structure to align multiple sensors along an optical axis.

Oblique off-axial illumination blocks axial specular reflections from fiber bundle ends, improving image contrast and resolution in endoscopic imaging.

Radiopaque members embedded in single-use endoscope resin provide reference scales for accurate stone diameter measurement under X-ray imaging.

External welded suture secures the catheter anchor loop while sidewall stylet positioning prevents lumen obstruction and clogging.

Surface projections on a polymeric elevator prevent wire guide damage while maintaining firm grasp and fluid flow.

Sigmoidal wire members and connectors create open cells in a low profile intraluminal filter, enabling navigability through small vessels.