Surgery TRIZ Cases

Folded optical paths separate final images to prevent overlap, enabling high-resolution imaging in small-sized endoscopes.

Direct skin insertion eliminates catheter-induced tissue damage while maintaining high sensitivity for glucose monitoring.

A multi-functional occlusion device uses a stretchable narrow connector to adjust its configuration for precise defect fitting.

A braided bone connection material combines a PTFE core with a hydroxylapatite shell to provide structural flexibility.

A finger-worn operation unit merges sheath axial movement and instrument actuation into a single handle.

A tantalum ion-implanted adhesion layer provides radio-opacity to biodegradable medical implants.

Dynamic aperture adjustment balances resolution and depth of field, overcoming diffraction limits and optical aberrations in endoscopic imaging.

An optical sensor ring detects surgical objects through infrared beams, resolving manual counting errors in fluid monitoring systems.

A line-scanning ingestible capsule captures high-resolution images of the gastrointestinal tract wall.

Segmenting the shield into a base and extensible flap resolves inadequate personnel protection from horizontal scatter beams while maintaining compact storage.

Adjusts drive signal characteristics using differential reflection timing to optimize transmission speed.

A distal end rigid member moves relative to a bending portion to extend instrument channels.

Transparent endoscope housing guides illumination light through its material, resolving space constraints while maintaining effective light transmission.

Integrated load sensors in a suspended urine hat transmit weight data to a console, ensuring accurate measurement without clinician oversight.

Concave portions on a rotary shaft transmit rotational force to driven members while minimizing deformation.

Nanoelectrospraying deposits active ingredients onto ocular prosthetic surfaces using controlled voltage to reduce drug wastage while maintaining lens clarity.

A controller for auxiliary endoscopes uses a rotational mechanism to reduce pull wires, freeing space for larger working channels.

Impedance electrodes measure tissue conductance to characterize plaque composition, resolving the limitation of conventional angiography.

A variable stiffness device uses a shape-memory pipe heated by an internal elongated member to trigger phase transitions for controlled bending rigidity.

Composite silica shell markers resolve lung tissue interference by providing distinct signals across ultrasound, CT, and MRI for precise lesion localization.

A capsule medical device guidance system adjusts image display direction based on user input to maintain consistent visual field orientation.

A thrombus retrieval catheter delivers a thrombolytic agent through surface openings while expanding to capture the clot.

Induction heating bonds insert blades to the reamer body, eliminating costly grinding and ensuring sterile sharpness for single-use orthopedic procedures.

Multi-cathode anodization creates durable TiO2 nanotube layers on stents, maintaining mechanical strength under compression.

Non-closed air cells with air resistance members regulate pressure to eliminate excessive discomfort and reduce gel resin costs.

A removable articulated tip forms controlled cavities in cancellous bone, enabling precise cement placement while allowing easy device extraction.

A biodegradable polymeric coating stiffens lightweight surgical mesh for precise handling during implantation procedures.

A surgical tool alternates torsional and longitudinal vibration modes via a waveguide to deliver precise cutting energy.

An integrated endoscope uses a piezoelectric element to drive a working tip, resolving the trade-off between surgical access and tissue damage.

A stepped mounting board distributes passive components across opposite surfaces to reduce the projected area of an endoscope imaging module.

A control unit generates direct and alternating currents based on measured electric resistance values.

Tubing connects a concave sweat collector to a mass spectrometer, resolving the trade-off between sampling complexity and time-resolution.

Segmented design anchors the catheter while preserving natural outflow, enabling uniform medication distribution without obstructing drainage pathways.

Photopolymerization creates a durable hydrophilic coating on latex condoms, reducing friction and shearing forces while maintaining lubricity throughout use.

Direct fiber routing through a screw-threaded assembly eliminates coupler-induced tolerance and noise during high-speed rotation.

A multipurpose knee instrument uses a single scale to measure bone resection thickness and AP offset.

Lateral channel bending resolves the diameter-versus-field-of-view contradiction, enabling detection of hidden tissue abnormalities.

A self-contained cell collection device enables patients to gather cervical samples at home using a plunger and accumulator mechanism.

Zwitterionic polyurethanes resolve biocompatibility contradictions by resisting bacterial attachment and biofilm formation through robust hydration shells.

A method embeds encoded data into components using 3D printing to create secure identification.

A universal camera head cover accommodates 2D and 3D eyepieces to reduce operating theater space and hospital investment.

A fluorescent image processing method superimposes transformed images to boost signal-to-noise ratio.

Segmented threading on the tubular member allows independent sleeve and ring placement, resolving assembly inconvenience while maintaining secure connection.

A capillary bodily fluid collection device draws liquid via surface tension, eliminating plunger-induced negative pressure that damages living tissue.

A filter changing device uses a rotating carrier with swiveling holders to position optical filters, reducing wear and complexity in endoscopic cameras.

Perforated wands split viscous saliva into identical halves via dual pads, ensuring precise sample division.

Conical friction surfaces lock the steering wire at any position, eliminating continuous doctor effort and preventing unintended angle shifts during surgery.

Vibrating legs propel an inspection robot autonomously, eliminating operator skill requirements and reducing tissue damage risks during endoscopy.

Transparent elastic film bandage with hypoallergenic adhesive maintains continuous compression to prevent vein re-enlargement during sleep.

A curved image optical system uses specific lens curvatures to form images on a concave sensor surface.