Surgery TRIZ Cases

Separate enzyme electrodes and tailored membrane regions enable one sensor to monitor glucose and ketones concurrently, reducing implant burden and failure risk.

A movable scoring member and counterforce member fracture BAV calcifications, improving leaflet mobility and TAVR landing-zone preparation.

Using the bearing outer race to guide the push button eliminates a separate guide, enabling a smaller head and reliable clamping.

A proximal pull on the actuation wire deploys viscous treatment fluid through an endoscope while reducing force on device components.

Separate wheel sections let surgeons move retractor arms independently, reducing bulk and improving visual access during tissue separation.

The bearing outer race guides the push button, eliminating a separate guide to reduce head size and support reliable drill release.

A hard coupling and open-pored soft suction area combine to improve hose security, suction, and patient comfort.

Amphiphilic block copolymers dispersed in polymer matrices provide lasting antibacterial activity without releasing biocidal compounds.

Angled ramps and expansion pins engage disc keels for controlled spinal implant removal while limiting bone and surgical-site trauma.

Alternating indicia on expandable retrieval legs estimate stone size in vivo, reducing trial-and-error withdrawal and tissue or device damage.

An expandable SMA mesh shifts from compressed insertion to secure fixation while supporting tissue integration and limiting damage.

A pivot bearing and rotatable drive move the lens axis on a conical surface, preserving horizon stability without post-capture rotation correction.

Lockable cutting diameters let surgeons expand a bone bore in stages without removing the reamer, helping preserve cortical bone.

Mesh filtration at the microfluidic inlet blocks bubbles and debris while electrodes analyze saliva without separate sample pre-processing.

Cumbersome multi-source endoscopy is addressed with switchable LED spectra and movable filters for white, ultraviolet, and fluorescent-marker imaging.

Microfluidic channels guide blood into defined fibrous-substrate zones, controlling deposited volume and limiting contamination before drying.

An angled working-channel passage reduces tip housing thickness while preserving electrical insulation and a smooth path for larger instruments.

Rigid, highly cross-linked silicone resists antimicrobial impregnation; nanopores enable sustained release and infection prevention in medical devices.

Series inductor-capacitor third circuits reduce stray capacitance and patient leakage current during high-power ultrasound treatment.

Helical grooves carry cut material away as circumferential teeth cut implant interfaces, helping reduce sticking during trephine removal.

Ultrasonic cavitation and nanoparticle-enhanced irrigation disrupt joint biofilms, improving in-body cleaning while limiting extensive surgical washout.

Nested inner and outer devices extend distal reach while reducing vessel-wall friction and supporting redundant occlusion capture.

Before gas-liquid channel cleaning, the reprocessor forms a water film on the top cover to limit splash contamination.

A larger proximal and smaller distal working section helps an endoscope resist deflection while supporting deeper, lower-trauma insertion.

Soft, flexible oral appliances guide tongue posture and jaw alignment to support TMD muscle balance without relying on tooth support.

Uneven hydroxyapatite dispersion limits large bone screws; controlled mixing and methanol molding produce uniform strength and regular pores.

Pressure sensors, valves, and transient pulses help rigidizing medical devices switch quickly between flexible and rigid states safely.

Separate delivery and actuation help this band ligator avoid pre-assembly errors and improve deployment reliability during endoscopic treatment.

Resilient fins and a flared distal catheter end help steer around vascular branches and avoid unwanted vessel entry.

A PTFE-coated titanium scaffold reinforces a flexible barrier film to maintain three-dimensional bone space and promote osteogenic differentiation.

A pre-positioned retainer blocks unintended capture-handle actuation, reducing device damage and procedure complications during stone removal.

A saliva collector, buffer, and lateral flow assay quantify IgA in minutes without ELISA laboratory testing.

RFID tags and an external emitter automate medical-device identification, order-of-use tracking, and procedural compliance without manual data entry.

Predictive ILP control accounts for continued tubing flow after pump shutdown, helping keep endoscopic lumen pressure below thresholds.

Color conversion and selectable outputs improve anatomy visibility while avoiding inaccurate pseudocolor in fluorescence observation.

Locking assemblies and cable-driven actuation address difficult PCNL tool manipulation while enabling precise movement and safer stone removal.

Segmented bridging sections reinforce thyroid cartilage clamping portions, suppress breakage, and support durable dysphonia treatment.

A probe representation and movement-direction cue clarify scan-plane relationships for efficient target-region ultrasound imaging.

An external rotating magnetic field drives a rotor or magnetic particles to generate lumen flow and clear obstructions without device removal.

A resilient wire coil expands to engage blood-vessel obstructions while reducing radial force, lateral stiffness, and vessel injury.

A translucent, hydrophilic fluid collector visualizes sweat without dyes, supporting more reliable protein analysis and reuse.

Fixed-interval imaging can miss rapid marker diffusion; feedback-driven selection displays meaningful fluorescence changes across tissue.

Nanoscale phase profiles compensate tubing-induced astigmatism in fiber-optic catheters, supporting diffraction-limited focusing and high-resolution imaging.

An expandable cage captures and removes clots through tortuous vessels while its porous structure helps maintain blood flow.

A collapsible reservoir replaces electric suction for accurate, single-step nasopharyngeal fluid collection.

Dual indicators align with the additive and target fill level to verify bodily fluid volume and improve diagnostic test reliability.

Physical contacts can cause endoscope connection issues; this receptacle combines inductive power, optical signals, and electrical contacts for two connector types.

Translational memory preserves illumination patterns through a square-core multimode fiber, enabling flexible imaging without prior calibration.

An elongated flexible sealable member aligns with the vessel axis to improve closure consistency in larger arteriotomies.

An imaging unit measures a grasped stone’s actual size so smaller stones can be extracted and larger stones fragmented before removal.