Surgery TRIZ Cases

Segmented design and passive diffusion enable precise dosing while minimizing systemic side effects.

Matching zinc corrosion and drug release concentrations prevents tissue necrosis while effectively inhibiting smooth muscle cell proliferation.

Offset rotatable members with different diameters create variable torque to reduce deflection force and maintain constant pull wire tension.

A surgical retractor drive unit employs a recessed gearing input element with undercut recesses to latch a detachable crank securely.

Metal-catalyzed ring-opening polymerization creates biodegradable stereocomplexes that overcome poor thermal properties of conventional polyesters.

Embedding transmission keys in imaging data enables reliable register updates via key collation, resolving instability from disturbance noise.

A vascular connector uses a semi-rigid cylindrical body to join synthetic grafts to native vessels.

A portable endoscope integrates imaging and processing components into a single unit for flexible surgical operation.

A reflective blind surface on the endoscope light-guiding connecting piece redirects uncoupled optical energy back into the fiber optic cable.

An elastic valve member switches between contact and spaced states to isolate or connect endoscope pipeline groups for fluid control.

An integrated skin-mounted device combines fiducial markers and physiological monitoring into a single unit.

Mobile driven rollers self-adjust to assembly errors, ensuring uniform pinching forces for reliable endoscope propulsion without high precision manufacturing.

A surgical screw integrates manual handle features with tool coupling means for flexible operation.

Angled optical detector enables off-axis viewing, eliminating fragile triangular prisms to reduce cost and improve durability.

PPE infused with photosensitizers generates singlet oxygen upon light exposure to inactivate microbes on surfaces.

Combining zotarolimus and paclitaxel in a single stent coating reduces neointimal hyperplasia while avoiding adverse safety effects from high single-drug doses.

Segmented control cables with spring-based tension relief alleviate stiffness from shaft bending, improving navigation and force detection.

A multifunctional endoscopic sheath integrates white and red light sources to enhance tissue illumination through blood.

Voltage-controlled color filters in a backside illumination imaging device improve narrowband light resolution without compromising color image quality.

Passive capillary channels drive biofluid through integrated semiconductor sensors, enabling continuous non-invasive health monitoring without active pumping.

Segmented magnets navigate curved bodily passages via a detachable wire guide, enabling accurate anastomosis formation without dislodgment.

An applicator with an oblique front area directs mechanical strokes into tissue.

A disposable air/water channel pre-cleaning adapter uses a valve stem to switch between fluid flows without continuous button pressure.

Distinct flat grip surfaces identify vertical image orientation, resolving monitor alignment difficulties during oblique-viewing procedures.

An endoscope adjuster controls primary light ratios across plural illuminators to distribute illumination evenly.

Multiple nozzle outlets emit cleaning fluid in non-intersecting directions, preventing Coanda effect concentration and ensuring thorough lens cleaning.

Parallel and coaxial discharge ports enable simultaneous multi-surface cleaning while preventing fluid flow interference that causes clogging.

A cover member with a concave portion shields spool adhesive from sterilization damage while guiding excess material away.

Merging the antenna conductor with the substrate eliminates internal voids, enabling automatic mounting and lowering production costs for capsule endoscopes.

A spinal implant uses a rotatable portion to pierce adjacent vertebrae for secure fixation.

A modular drying device uses directed blowing elements to generate uniform downward airflow for hanging endoscopes.

A purse illumination assembly uses a touch-sensitive switch to activate light-emitting fabric for ambient lighting.

Segmenting the core and cladding resolves the contradiction between miniaturized probe size and signal collection efficiency.

Reciprocal rotation of the distal tip reduces friction and adhesion, enabling atraumatic navigation without tissue perforation.

A two-resin system fixes an endoscope optical member while forming a protruding light-blocking portion to prevent flare and fracture.

Trimmable flexible PCB with force sensing resistors reduces production time and cost by enabling standardized socket fabrication.

Flexible tubular nasal dilator expands passages using a septum clip while integrated protrusions release medication over time.

A minimally invasive cleaning device wipes scope lenses and trocars without removing instruments from the body cavity.

A piston-driven conduit switching apparatus uses a seal member to isolate gas flow from the outside environment.

Piezoelectric clot retrieval device generates electric charges to improve clot retention on the lattice structure.

A sub-atmospheric wound-care system uses a flow rate meter to measure liquid removal from an open wound interface.

A radially deformable wall in an endoscope distal portion expands to accommodate larger appliances during deployment.

A respiratory impedance measuring device applies frequency-culled air vibration pressure to the oral cavity for precise signal detection.

Replacing plastic sheaths with a glass sleeve isolates conductors from the metallic shaft wall, reducing radial dimensions while maintaining electrical safety.

Resin portions on metal sliding surfaces suppress abrasion powder generation during rotational operations.

Nano-structured lasers reduce heat generation, allowing close placement of imaging and light sources without large cooling mechanisms.

An inorganic joining part extends along the periphery of a circuit board to enhance bonding strength between the resin sealing member and substrate.

A rotation assembly enables imaging device orientation changes within an endoscope tip.

Suction through an aspiration catheter compresses an embolism protection device for safe removal, preventing emboli release and stroke risk.

Rack and pinion adjustment aligns the chin piece with user anatomy, resolving stock management burdens from multiple sizes.