Surgery TRIZ Cases

A clot retrieval system uses a shape memory alloy distal body to expand and capture obstructions within blood vessels.

A self-cleaning endoscope uses a motor-driven rotating lens protector to maintain optical clarity during minimally invasive procedures.

Object observing apparatus corrects sensitivity attenuation with depth and applies sparseness to improve spatial resolution.

Multi-port cap assemblies reduce cross-contamination risks by replacing manufacturer-specific fittings with disposable universal interfaces.

A sealable polyethylene pouch captures kidney stones during fragmentation to prevent fragment migration.

An aspherical illumination lens refracts light to secure peripheral brightness in endoscopes.

Stacking full-thickness micro tissue columns to replicate dermal architecture and accelerate re-epithelialization while minimizing donor site scarring.

A standardized connector stays attached to an endoscope during reconditioning, eliminating repeated manual handling and reducing contamination risks.

Bonding agent fills the concave portion and opening to join the PEEK wire guide tube, overcoming extension rate issues under pulling force.

Placing the antenna on the inner surface of the imaging dome avoids metal interference and maintains compact size.

A dermal tissue nano-grafting system harvests minute particles and propagates them in a chambered dressing to expand graft area.

A retrieval device end effector uses movable members to expand and contract loops for object capture.

Varying the coating deposition rate controls active agent release profiles, preventing over-dosing side effects and ensuring therapeutic reliability.

An in-vivo sensing device isolates a reacting layer with an opaque cover to improve the signal-to-noise ratio during pathology marker detection.

Radial light distribution via cylindrical optical member reduces endoscope tip diameter while maintaining 180-degree illumination.

Segmented optical assemblies and fluid channels in the endoscope tip resolve the trade-off between expanded field of view and device complexity.

Dual conductor patterns link a metal lens frame to terminals, dissipating static electricity from the image sensor while verifying electrical continuity.

Compact directional antennas resolve manufacturing precision trade-offs while enabling non-invasive vital sign monitoring accuracy.

Replacing mechanical clamps with adhesive bonding reduces part count and assembly complexity while maintaining control mechanism security.

A bioabsorbable mesh provides structural support to ligament grafts during surgical fixation procedures.

Universal germicide bottle trays detect bottle types to mix basis and buffering agents, resolving compatibility limits across different formulations.

Color-coded titanium ligature clips map tumor mass orientation to surrounding tissue for precise surgical margin identification.

A flexible endoscopic probe integrates a magnetic micromotor with an axially transparent rotor to drive a rotating light deflector.

A vascular filter system deploys a wire that coils inside a vein to capture emboli during thrombolysis procedures.

Two-part insulating cover prevents high-frequency current leakage while maintaining secure attachment and visual confirmation during endoscope procedures.

Segmented vascular prosthesis elements connect via mechanical crowns and seals, eliminating cutting and reducing implantation time.

An inline urine analysis apparatus uses an optical assembly and image sensor to capture continuous fluid images.

Negative power lens assembly modifies chief ray angle to match image sensor micro-lens array requirements.

A flexible endoscope aid with a sliding contact mechanism stabilizes tool disposition and maintains suction functionality despite bending.

Curved transparent resin member refracts illumination light to widen the in-water field of view while maintaining uniform light distribution.

Laser-dried polyurethane coatings with embedded particles provide radiopaque and echogenic catheter markers without compromising device flexibility.

A hermetic seal tester detects internal leaks in medical devices using a plug, pump, and gauge to form an air-tight seal.

Replacing mechanical cables with wireless links, the system eliminates tripping hazards and reduces setup time for dental procedures.

Feedback control compensates for temperature-induced optical output variations, eliminating Peltier devices and reducing power consumption.

Segmenting the endoscope into a reusable handle and disposable cannula eliminates complex decontamination procedures while maintaining precise steering control.

A flexible intramedullary autograft harvester uses a scraping cutting head to transport tissue proximally through helical threads.

Front group filter positioning and asymmetrical retrofocus structure resolve wide angle of view versus lateral chromatic aberration trade-offs.

A crosslinked thermoplastic polyester elastomer jacket enhances endoscope flexibility and durability.

A fixing pin engages mobile bodies on a linear member to secure inner coil sheaths within an endoscope insertion device.

A porous silicone-coated substrate engages excised skin grafts with soft-tack adhesion to facilitate controlled fluid movement during harvesting.

Segmented ribs on the reamer shell create open pathways for debris passage, resolving clogging issues in acetabular surgery.

A disposable illumination sheath transmits light via a solid tubular structure to maintain sterility.

A serial third capacitor with a small capacity counteracts parasitic capacitance, increasing the capacity change rate and improving receiving sensitivity.

Multi-axis mobility of the distal light diverter expands the angular range and light intensity while maintaining compact structural space.

Perpendicular circuit boards enable secure welding of detection components within flexible tube in-vivo devices.

Projector and mirror assemblies fixed to the table preserve image stability, reducing patient anxiety in confined gantry spaces.

A combined drill and reaming device with a pivotable blade creates curvilinear voids in vertebral bodies.

Segmenting the detector from the handle eliminates sterilization time while reducing maintenance costs.

A mobile video production system integrates cameras and audio mixers on a portable platform.

Porous polymer balloons resolve the trade-off between vessel navigation flexibility and lesion dilation hoop strength without fluid leakage.