Surgery TRIZ Cases

See how carbon nanofibers embedded in PDMS or PTFE create a superhydrophobic surface for rapid clotting and easier clot detachment.

A fitted adapter lets one cap assembly seal and mount securely on endoscope ports with different sizes and shapes.

A flow-actuated valve opens a side path when the distal end opening is blocked, maintaining suction during endoscopy.

Porous modular inserts and filamentary fixation structures promote tissue ingrowth for durable soft-tissue attachment to tibial prostheses.

A hexapod drive aligns a shockwave source with X-ray imaging without mechanical coupling, while compensating for patient motion and air bubbles.

Separate housings and substrates add parts and alignment work; an integrated molded substrate carries circuits around the optics for compact endoscope imaging.

Force sensors and specific-gravity calculation automate urine-volume measurement, reducing manual work and reliance on patient compliance.

Anti-node cutting and node sealing regions separate fast tissue severing from effective sealing in ultrasonic shears.

An integrated conduit and plunger support self-collection, controlled transfer, and measured oral fluid volumes with less contamination risk.

Magnetic internal components are positioned at voice coil motor isomagnetic lines to protect lens motion and keep the distal end compact.

Pre-sterilized removable tips keep the needle lumen closed during port insertion, then detach for infusion while reducing contamination risk.

Helically wound insulated wires and offset emitters direct sonic pressure waves while preserving catheter flexibility for calcified-lesion treatment.

A proximal cantilever bends to position instruments without distal bending, simplifying costly ERCP endoscope elevator assemblies.

A widening fixation portion secures vessel cuts without contacting anastomosis needles, helping shorten lengthy, risky suturing procedures.

Electrode pairs generate cavitation bubbles in conductive fluid to fragment thrombus through a catheter, avoiding drug-based clot removal.

An adhesive retractor separates a removable perioperative portion from fabric layers that remain adhered to support tissue retention and wound healing.

Moving the reference mirror repositions optical-part artifacts so they can be separated from biological tubular images before display.

Adjustable poles, telescoping baskets, and marked rotating arms quantify reach, wrist rotation, and other movements for discharge decisions.

An asymmetrical rigid frame fixes multiple surgical fiducial markers and couples to a clamp for stable augmented-reality tracking.

Exposed rotation-sliding surfaces let brushes or cleaning solution reach the endoscope camera head interface, reducing cleaning time.

An endoscopic loop-and-net assembly captures polyps while keeping the camera view clear and supporting repeat removal without reinsertion.

Ultrasonic vibration and region-specific tooth pitch help initiate strong-bone cuts, follow curved paths, and limit soft-tissue damage and kerf loss.

An adhesive lip and basin ridge capture pediatric urine continuously, reducing leakage and enabling direct output measurement and sampling.

An outer bearing element supports the second control wheel, stabilizing two-dimensional steering while simplifying endoscope control assembly.

Surface pretreatment and polymerization grafting create a hydration layer that blocks scaling, bacterial adhesion, and biofouling on implants.

An elastic support keeps the ultrasonic transducer away from the vessel wall while cold saltwater or gas limits heating during ablation.

A continuous radiopaque coil with tightly and loosely wound sections supports fluoroscopic lesion measurement while preserving catheter flexibility.

Immiscible upper and lower fluids separate by density to retain therapeutic agents near the olfactory region and reduce nasal delivery waste.

An axially movable acceleration tube self-switches pressure flow to raise lithotripsy impact cadence above 15 Hz without external valves.

Integrated conductive elements let spinal retractors and cannulated dilators provide real-time neuromonitoring during operative access.

A spiral cooling passage directs water around the grinding rod, reducing coolant use and tissue heat during spine surgery.

Separating the specimen tube holder from the lid reduces sharps waste and limits needle-stick exposure during sample collection and disposal.

Water filtration separates sweat fluid before polymer binding, improving biomarker sensitivity and electrical detection stability in wearable formats.

Degradable valve materials help endoscope components break down faster after disposal.

A closed-loop piezoelectric signal regulates pneumatic projectile frequency, balancing fragmentation force with ultrasonic system stability.

Rotational compression and filtration compact bone fragments into a homogeneous graft.

This case uses a tip-mounted laparoscopic oximeter with reusable electronics and disposable probes for rapid tissue oxygen readings.

This holder separates projectile impact from sonotrode excitation, reducing ultrasonic detuning and supporting ergonomic use.

A corrugated jacket uses segmented helical support to balance pushability, flexibility, and reduced vessel damage.

An internal clock triggers urine collection and analysis within planned windows, conserving cartridges and protecting privacy.

An inclined blade, ergonomic grip, and nested chip chamber support precise bone scraping with less force and smaller incisions.

An expandable anchor secures an artery implant for clearer brain signals.

Independent wavelength lasers synthesize blackbody-like light for efficient fiber delivery and more natural tissue color during diagnosis.

This case uses baseline ADA measurement and a 1000 ng/mL cutoff to reduce false positives in treatment response prediction.

This case separates imaging electronics from fluid channels, using an optically clear cover and overmold to improve reliability.

An exposed wire end conducts static away from the tip while a retaining ring secures the catheter, avoiding a separate ground lead.

Mechanical, spring, screw, and pressure-based controls vary endoscope tube stiffness for flexible navigation and reduced looping.

Alternating white light and narrowband frames enables hyperspectral data cubes without disrupting live video or adding a large spectrometer.

Baseline image comparison warns operators and adjusts suction before kidney collapse during endoscopic stone removal.

Corrugated sections and helical support balance catheter flexibility with kink resistance.