Surgery TRIZ Cases

Silver and TiO2 nanoparticles in polyethylene films reduce cross-infection risks while lowering costs compared to disposable fabric covers.

A zinc alloy with iron and magnesium provides high mechanical strength for load-bearing medical implants.

Automated laser projection system maps radiation boundaries onto patient skin using pre-calculated 3D coordinates.

Time reversal transmission compensates for body tissue obstructions, reducing power requirements by a factor of ten.

A diagnosis support device detects eye gaze direction and superposes pattern images onto natural images to enhance diagnostic accuracy.

Incorporating plasticizers into drug-polymer coatings prevents cracking and flaking while controlling burst release.

A collapsible surgical frame expands to engage the iris and maintain pupil dilation during eye procedures.

A self-expanding basket uses a reciprocating core wire to adjust its profile for vascular delivery.

Electrospun 3D fiber platform protects siRNA from enzymatic degradation while managing wound exudate to enhance healing.

Segmented magnetic beads provide uniform radial force to prevent acid reflux without invasive surgical complexity.

Segmented components with counterweights minimize bath movement and rotation, enabling accurate organ posture reproduction without structural complexity.

Dynamic frequency modulation resolves the trade-off between tissue cutting performance and hemostatic effect by adjusting tip displacement.

Multi-layer lubricious coatings on catheters reduce friction to enable navigation through tortuous neurovasculature for efficient clot removal.

A sensing element detects ballistic signals passing through tissue to calculate a compression index.

Correction parameters normalize fluctuating signal strength from multiple antennas, resolving position detection errors in capsule endoscope systems.

Monitoring system detects optical probe intensity changes and positional shifts to prevent catheter damage and vessel injury.

Dynamic pullback rates reduce imaging time and storage by using fast speeds for surveys and slow speeds for regions of interest.

An endoscopic image processing apparatus dynamically adjusts assisting information display based on region-of-interest detection status.

A borosilicate glass oral fluid collection tube contains a lyophilized reagent that stabilizes drugs and metabolites upon sample contact.

Metal case step portions contact waterproof cap circumference to prevent contamination in endoscopes.

A capsule endoscopic receiving device selects an optimal electrode pair using preamble correlation values.

A rotational movement restricting member engages wire pulling members to prevent unwanted rotation before angle knob attachment.

Covalent PEG-CMC cross-linking adjusts polymer elasticity to match tissue properties, preventing structural support induced damage.

A biocompatible tissue positioning device maintains anatomical alignment using a segmented spacer or expandable bladder mechanism.

Angled C-shaped engagement structures prevent axial disengagement in endoscope curved tubes, ensuring reliable surgical instrument stability.

A deformation preventing member scatters pressing force orthogonally to the optical axis, protecting lens frame integrity during unit fixation.

Segmenting the imaging assembly onto flexible substrates reduces rigid length to prevent kinking during tortuous vascular navigation.

An adhesive bandage incorporates a flexible abrasive facing to smooth calloused skin, eliminating the need for separate manicure tools.

A disposable handle assembly uses a side passage and biasing mechanism to securely retain multiple interchangeable medical instruments.

Multi-component glass image guide fiber with numerical aperture 0.70 to 0.90 and core occupancy ratio above 25 percent.

An optical bulb with a hemispherical distal end creates a uniform image path within a surgical instrument guide.

An asymmetric blade design navigates around nerve roots while the pusher mechanism expands the operative field during minimally invasive spinal procedures.

A detachable antenna attachment portion uses an interlinking mechanism to variably adjust receiving antenna positions on a fitting portion.

Segmented composite coils eliminate spring windings to resolve sanitation issues while maintaining flexibility through helical groove geometry.

A liquid supply mouthpiece uses a segmented channel design with a pressing member to maintain fluid-tight contact between components.

Alkaline treatment of a PCL nerve conduit improves biocompatibility, resolving low regeneration rates from poor scaffold properties.

A porous mounting card secures tissue specimens in a base mold to maintain precise orientation during histological processing.

A segmented saliva sampling device uses a permeable casing to filter contaminants while an absorbent core captures the sample.

Frequency hopping and phase modulation enable high-data-rate transmission through the noisy gastrointestinal tract while maintaining signal integrity.

A 3D medical imaging system merges high-resolution static CT data with dynamic ultrasound movement vectors for real-time visualization.

Disabled illumination image analysis detects capsule position changes to stop capture outside the body, reducing power consumption and data volume.

A femoral stem with a lateral post anchors through the bone cortex, preventing subsidence and dislocation in hip prostheses.

A disposable circumcision anastomat uses a porous gasket to release anesthetic drugs gradually, reducing postoperative pain and maintaining sterility.

A camera head uses a high-resolution green light sensor paired with lower-resolution red and blue sensors to capture detailed medical images.

A surgical control system validates pre-registered voice commands against operator profiles to prevent misrecognition errors.

Marking screens display the rotational position to resolve the contradiction between adjustable viewing direction and lost positional information.

Segmented endoscope design separates insertion and operation portions to resolve sterilization efficiency versus structural complexity contradictions.