Surgery TRIZ Cases

A non-columnar permanent magnet cuts controller weight and volume while maintaining magnetic force for external capsule endoscope movement.

An injectable copolymer hydrogel combines body-temperature gelation with sustained ROS scavenging to support healing after ischemia or reperfusion.

Hands-free voice and AR control lets surgeons image excised breast tissue in real time, improving excision precision and workflow.

UV-visible fluorescence makes transparent coating coverage on flexible wound sensor circuits inspectable while preserving biocompatibility.

A two-stage reamer uses a tilting proximal section to shape bone for revision implants while preserving the greater trochanter.

A virtual patient view links selected body areas and timeline events to consolidated clinical and diagnostic records for faster decisions.

Simultaneous phase maps at foveal and peripheral retina enable fast choroidal topography measurement for evaluating ophthalmic lens designs.

Controlled axial and radial expansion creates surgical working space while preserving access and minimizing tissue displacement.

A swept-frequency identification signal detects endoscope coupling and power acceptance while preserving isolated wireless LED power transfer.

A damper acting on a sphere directly resists the operating rod, reducing joystick vibration and improving endoscope control stability.

Infrared heating keeps the endoscope distal window at body temperature to prevent condensation and maintain clear surgical visibility.

A retractable tip inverts into a funnel mouth to improve clot aspiration in tortuous vessels while reducing clot shear and vessel damage.

Automated gating, TCPP fluorescence, and machine learning improve non-invasive sputum testing for early lung cancer while limiting false positives.

An integral plastic latch and flexible hinge secure and release instrument shafts while avoiding sterilization and recalibration needs.

Forward-facing catheter ultrasound accelerates enzymatic clot softening and cavitation-based breakup to treat CTOs and thromboses faster.

By tuning tip geometry and transducer materials, this case raises ultrasonic oscillation amplitude for more precise tissue and bone cutting.

Pressure-differential monitoring detects catheter clogging, vacuum loss, and thrombus engagement in real time to improve aspiration safety and reduce blood loss.

A variable-radius cam guides the actuation wire to cut user torque and maintain responsive shaft articulation during endoscopic access.

A counterweight and spring mechanism stabilizes the finger sensor during movement, enabling accurate continuous oxygen saturation monitoring.

A side-load swivel lock secures and repositions surgical retractor blades to improve access and visibility without deeper incision entry.

A single multi-mode laser and echelle grating generate stable relative wavelengths for precise 3D holographic imaging with lower cost and complexity.

Real-time force sensing shifts punch rotary modes to match skin resistance, improving FUE graft extraction precision and consistency.

Helical grooves clear debris while a quick connect secures the trephine, improving cutting around bone, cement, and soft tissue at implants.

Stored light emission settings for each illumination type help endoscopic images avoid over- or under-brightness across scheduled frames.

Separated double-valve timing controls projectile impact and return speeds independently, improving treatment comfort and pulse frequency.

A polyphenol-anchored silane and lubricant coating helps ostomy bags repel liquids and semi-solids for cleaner, easier emptying.

A chin-rest and oral-clasp pointer traces jaw paths to diagnose TMD irregularities and guide personalized non-invasive exercises.

A disinfectant cap with 70% isopropyl alcohol keeps the Foley catheter sampling port sterile and reduces bacterial contamination during access.

A removable luer adapter and cap isolate the needle for sharps disposal, cutting waste volume and needle-stick risk.

Anti-thrombogenic materials on catheter surfaces reduce fibrin sheath buildup, helping maintain patency for infusion and blood draw.

Sensors on individual finger transmission members quantify FDS, FDP, and FCU force for more targeted forearm training and rehab.

A compressing lid flattens unlabelled tissue on an optical substrate for rapid intraoperative virtual histology of surgical margins.

PAM-encoded surgical imaging cuts signal frequency to raise camera data rates while preserving signal integrity and simplifying galvanic isolation.

A lift-wire rotates a lubricated cotton square for deeper, more hygienic nasal cleaning than tissues, wipes, or Q-Tips.

Dual-frequency intravascular ultrasound with microbubbles and nanodroplets lowers cavitation threshold to lyse retracted and unretracted clots faster.

A multilayer microfluidic sweat path separates skin contact from electrodes to improve comfort, measurement reliability, and low-cost single use.

A movable flow path diverts the first potentially contaminated bodily fluid into a separate reservoir before collecting a cleaner diagnostic sample.

Transient pressure pulses and a sterile adapter enable faster rigidize/de-rigidize switching while limiting leaks and cross-contamination.

Pins lock a reverse shoulder spacer into existing glenoid anchor holes, preserving bone integrity and simplifying temporary joint replacement.

A dual-sheath irrigation sleeve improves cooling, limits fluid leakage at the hub, and helps maintain visibility during ultrasonic surgery.

Color-coded reference bands and optical sensing enable absolute table position detection in PET/MRI systems without zero-point calibration.

Imaging a basket-grasped stone enables accurate size and shape measurement, helping decide extraction or crushing while avoiding ureter injury.

An attachable extension lets surgeons rotate a laparoscope with one hand while keeping the light-guide cable secured during surgery.

AI analyzes secondary endoscope views and flags suspected polyps, expanding colon coverage without forcing physicians to track multiple feeds.

Elastic locking members help a vascular occluder resist pulsation-driven detachment while improving positioning firmness and clot-assisted locking.

A removable endoscope-coupled delivery unit uses pressurized fluid to move hemostatic agent through the channel with less clogging and steadier dosing.

Tactile protrusions on the endoscope grip let operators return the insertion part to neutral without visual indicator alignment.

An umbilical cord-derived sleeve around a biocompatible strip helps close fistulas while supporting tissue regeneration and drainage.

A base with interchangeable reaming members enables precise incremental cavity sizing while reducing repeated tool changes and surgical time.

Arcuate cutting ribs on a surgical reamer maintain alignment and reduce slippage to ensure uniform acetabular cavity dimensions.

A flexible bladder urine collection container uses an internal baffle structure to redirect fluid flow and reduce splashing noise.

Segmentation maintains catheter position during end effector retraction, resolving the trade-off between stability and operational ease.

An integrated handle merges grip and retraction to eliminate separate arms, resolving complexity while maintaining secure attachment.

A surface-modified metal uses a silane coupling agent to create a firmly bonded polymer layer on medical device components.

A catheter pullback technique measures pressure gradients to assess coronary stenosis severity without hyperemic agents.

Universal adhesive composition bonds diverse substrates while delivering controlled-release bioactive agents.

A urine collection device uses a soluble membrane to separate initial flow from midstream samples, preventing bacterial contamination in sterile specimens.

Single device merges bony wrasping and cartilaginous cutting to reduce tissue trauma during closed rhinoplasty.

A converter transforms non-visible illumination light into perceivable signals for medical systems.

Selective fiber illumination reduces endoscope heating by avoiding unnecessary light absorption in uncoupled fibers during high-resolution imaging.

Modifying distal tip material properties reduces breakage risk while increasing energy intensity, preventing debris introduction into the vasculature.

An integrated catheter uses pH indicators to confirm stomach positioning, reducing contamination risks from multiple connections.

Inwardly extended edges shield injection-molded parting lines, reducing vaginal tissue injury while maintaining manufacturing simplicity.

Automated capacitive sensing replaces manual measurement, eliminating human error and improving tracking reliability.

A braided funnel catheter bunches against vessel walls to create a secure seal for blockage aspiration.

Complementary pupil shapes and periscope prisms increase inter-pupil distance while maintaining a compact endoscope diameter.

Post-fabrication absorption loads APIs into 3D printed silicone medical devices, resolving thermal sensitivity and fabrication time constraints.

A sloping front surface portion angles the applicator to distribute mechanical impact force over a larger area.

Radially expandable mesh secures ingrown filters while preventing emboli dislodgement during retrieval.

Segmenting the endoscope into a reusable handpiece and single-use insertion tube eliminates cross-contamination risks while reducing waste.

Dry spinning poly-4-hydroxybutyrate maintains polymer molecular weight, preventing rapid degradation and inflammatory reactions in medical devices.

A composite structure with adjustable stiffness resolves the trade-off between load-bearing strength and energy dissipation in prosthetic replacements.

Segmented ultra-thin sub-layers deform with the substrate during shape transformation, reducing nickel elution and maintaining super-elasticity.

Pre-grounded lenses eliminate edge grinding steps, resolving manufacturing precision versus productivity trade-offs for sub-2mm imaging systems.

Alternating light wavelengths on a single optical channel increases frame rates despite low scanner resonance frequencies.

An adapter with a large receiving opening and integrated filter enables safe manual pouring of menstrual blood into standard collection tubes.

Self-expanding reinforcement members in stent flanges exert radial force to prevent migration during gastrointestinal anastomosis procedures.

A miniaturized measurement cell applies stable voltage to generate hydrolysis current for ion concentration determination.

A catheter system combines infusion and aspiration through a single lumen to disrupt and evacuate clots.

An L-profile cardiac retractor with an articulated fin resolves insufficient mitral valve exposure in minimally invasive surgery.

Retention components secure a fluid collection device in position, reducing discomfort and infection risks associated with traditional bed pans.

Pulsed ultrasound transducers in a catheter drive microbubble cavitation to enhance drug delivery while preventing tissue damage.

A disposable sterile guide compartmentalizes tissue during endoscopic surgery to protect surrounding anatomy.

Integrated handheld device merges pH measurement and lateral flow assays to resolve diagnostic accuracy versus complexity trade-offs.

Segmented dual struts distribute radial force across multiple members, reducing vascular damage while maintaining large openings for effective embolus removal.

Phenolic compound coatings bind elastin to prevent degradation, stabilizing aneurysm-prone vessels while reducing invasive procedure risks.

Optical character recognition and wearable codes automate patient data entry, reducing manual transcription errors and improving workflow efficiency.

A bariatric device exerts pressure on the stomach wall to induce satiety through neurohormonal feedback mechanisms.

An endoscope system acquires image signals across four distinct wavelength bands to calculate oxygen saturation levels.

A polar hydrophobic ionic polyurethane material reduces IgG Fab exposure through specific molar ratios of anionic and non-ionic components.

A heterogeneous fiber rod segments light guidance and image transmission to reduce manufacturing effort while maintaining high image quality.

Asymmetric shielding plates create directional magnetic fields that prevent accidental activation while ensuring reliable switching.

Integrating a light source and camera at the distal end eliminates external fiber guides, reducing light loss and structure complexity.

Disposable exoshell encases reusable surgical probe core to provide sterile tactile operable controls, resolving sterility and cost trade-offs.

Segmented base members preserve bone stock during revision surgery by acting as void fillers for new stemmed prostheses.

A wireless endoscope system separates image detection from display control to streamline vehicle fault diagnosis workflows.