Surgery TRIZ Cases

Hydroxyphenyl-substituted hyaluronan hydrogel coating immobilized on biologic bulk grafts to enhance tissue integration.

A continuous blood glucose monitoring system uses a pressure detection sensor to automatically switch the glucose detection function on and off.

AI algorithms analyze smartphone stool images to determine inflammatory bowel disease activity, reducing the need for invasive colonoscopies.

A light source device combines transmitted and reflected beams to deliver sufficient illumination flux for endoscope observation modes.

Beveled distal end optical lens aligns with inward projection portion to prevent dislodgement and enable thinner insertion portions.

Shape data comparison locates target areas with poor visibility while alternating illumination patterns enhance image clarity.

A non-invasive system monitors sleep heart pulse and respiration signals to calculate fertility windows without active user measurement.

A self-retaining circumferential flange anchors the conduit in tissue, eliminating sutures and reducing leakage risks.

A catheter distal tip uses varying durometer segments to resist geometric deformation during guidewire engagement.

Magnetic coupling transmits power across a hermetic seal, enabling electrical activity in sterilizable endoscopes.

Water-triggered crosslinking of sterically hindered urea groups resolves the trade-off between processing ease and mechanical strength.

Weaving radiopaque strands into the filter mesh provides X-ray visibility without degrading mechanical integrity or adhesion.

Micro-lens array and mono sensor acquire high axial and lateral resolution 3D color image data without increasing device size.

Injection-molded plastic lens barrels use adhesive layers to capture particle debris, preventing optical sensor obstruction.

A controllable light-refracting device adjusts illuminating light to match the selected viewing angle.

Imaging device switches optical pupil states to capture phase difference images for stereoscopic measurement.

Spring-loaded shock wave electrodes with fluid holes maintain constant spark gaps, reducing erosion and extending functional life.

A tissue retrieval device deploys a specimen bag via a cord and guide bead for secure containment.

A magnetic collection wire attracts and retains small stone fragments using nanofunctional coatings.

A medical observation device adjusts imaging sensor exposure to maintain stable brightness levels during surgical procedures.

Statistical condensation of raw analyte signals at the base station reduces data volume and energy consumption for continuous monitoring.

A C-shaped click leaf spring provides tactile feedback through resilient deformation in an endoscope bent state holding mechanism.

Rigid endoscope distal portion uses segmented sealed spaces and a communication passage to guide operation wires.

Dynamic green light spectrum switching resolves the trade-off between single-layer precision and multi-layer versatility in endoscopic imaging.

A reciprocating scraper system removes osteophytes from vertebral bodies to prepare the disc space.

A collapsible apical hole closure device attaches to cardiac tissue via hooked segments and collapses inwardly to seal the opening.

Segmented design eliminates sterilization costs while asymmetric coupling ensures consistent panoramic imaging.

Hydrophobic filters extract pathogens from complex respiratory matrices, concentrating analytes in low-volume samples to enhance detection sensitivity.

An intuitive user interface simplifies navigation in large hollow organs by merging viewing windows and using color-coded icons for alignment.

A biodegradable polymer layer masks a bioadhesive stent coating during delivery, then erodes to anchor the device and prevent migration.

Segmented wire with insulating coating prevents current leakage while extraction of the attachment member simplifies the operation section volume.

Segmentation and intermediary adhesive layers protect delicate electronic components from tablet pressing pressure while maintaining secure attachment.

Pyrolyzed carbon scaffolds match bone stiffness, eliminating stress-shielding and metal ion release in implants.

A mobile handset gripper receives and controls an insertion tube for non-destructive testing inspection.

A retrograde cutter creates bone sockets from the inside out using a locking blade mechanism.

An optical fiber length adjuster uses elastic bobbins to wind and unwind fibers during endoscope deformation.

A nickel-titanium-platinum alloy implantable medical device manufactured via physical vapor deposition.

Segmented comb-like bending section parts interlock via transverse bridges to distribute mechanical stress across the endoscope insertion tube.

Elastic body covers endoscope coupling portion to absorb bending stresses, preventing damage from rigid-rigid connection stress concentration.

An endoscopic apparatus detects artificial objects in images to calculate pixel sizes and generate measurement scales.

An expandable anchor mechanism secures and extracts thrombotic material through radial expansion.

A subcutaneous ureteral bypass device connects renal and bladder catheters via a shunting port.

Superimposing 2D fluoroscopy onto 3D blood vessel images marks surgical tools within vascular structures, resolving spatial identification challenges.

A flexible indicator device uses absorbent material to migrate bodily fluid over a graduated scale for rapid visual measurement.

A ferrous core detector with transmitting and receiving coils induces currents in metal clips to locate them during surgery.

Transverse toothed ultrasonic probes shave eschar while central bores aspirate debris to prevent clogging.