Surgery TRIZ Cases

A surgical retractor control assembly locks blades in position to prevent unpredictable movement during procedures.

Shape memory alloy legs expand to stabilize a vascular filter against migration while enabling catheter deployment for clot capture.

An endoscope operation dial uses elastic force to return the curving portion while maintaining position within a defined range.

Segmented tip openings and hydrophobic coatings prevent tissue damage and air contamination during laparoscopic fluid removal.

A dental device featuring a flat head portion and hollow tubing for efficient saliva ejection during treatments.

A wavelength converter with a first phosphor emits near-infrared light across 700 to 800 nm for fluorescence imaging.

Segmented drill cutting edges enable precise low-angle positioning without surface contact, resolving the trade-off between drilling efficiency and accuracy.

Protrusions guide adhesive flow to prevent voids, ensuring sealing integrity against bacterial contamination.

An external sheath with an endcap track allows large accessories through small channels, resolving stiffness and sanitization trade-offs.

A catadioptric optical element redirects light paths to correct lateral chromatic aberration in wide-angle imaging systems.

A handheld dental device uses quantitative light fluorescence to detect demineralization.

A dual sleeve system protects endoscope shafts and handles from body fluid contamination using concentric protective volumes.

A medical apparatus uses a tension reducing mechanism with redundant paths to maintain shape retention in bendable portions.

A pivoting power extension transfers torque to a combination reamer and drill device.

Nested shafts in a driving instrument rotate independently to expand spinal implants, resolving endplate contact and lordosis trade-offs.

A self-locking endoscope toggle assembly uses a rotatable lever to engage a friction piece for stable handle positioning.

A sample holder uses capillary force to draw bodily fluid into a silicon chamber.

Segmenting the device into a disposable optical tip and reusable handle reduces decontamination complexity while maintaining image reliability.

Segmenting the Albarran lever from the pivot member eliminates residue adhesion at junctions, ensuring effective disinfection and simplified reprocessing.

External rivet welding prevents ring deformation and maintains guaranteed clearance for torque stability.

A fluorescence observation apparatus corrects luminance values to isolate distinct fluorescent signals from multiple probes.

A specimen orientation system generates graphical indications to align tissue images with patient anatomy.

Controlled crystal morphology maintains high local drug concentration for stenosis inhibition while minimizing systemic toxicity and embolization risks.

A stylet safety shield uses a locking mechanism to cover the needle tip and prevent accidental injury during medical procedures.

An oral cavity insertion instrument integrates a plate tongue depressor adjacent to a scope cover member for patient comfort.

A processor adjusts the frame capture rate of an in vivo imaging capsule to balance image quality with limited battery capacity.

A generator produces a second vertical synchronization signal to control image reading timing in an endoscope system.

Cemented lens structures correct lateral chromatic aberration near 400 nm while reducing lens diameter for patient comfort.

A sputum trap integrates a one-way valve to transfer samples directly onto slides.

Segmenting the coupling member from the shaft enables unlimited rotation, preventing optical fiber winding during tracking.

Segmented fastening mechanisms secure the device to the head and grip, resolving complexity trade-offs.

A lever-operated mechanism advances an extremely small diameter endoscope insertion part into root canals, reducing damage risk during navigation.

Rotatable guide-wire securing unit holds the wire in position using O-rings and a knob mechanism.

A sensor handle assembly integrates a force indicator to provide tactile and visual feedback during cord manipulation.

A handheld endoscopic camera integrates a display screen to provide real-time surgical visualization.

Segmented scope holders transfer heat through high conductivity bases to prevent lens fogging and reduce procedure time.

A ureteroscope handle integrates a deflection lever with an automatic locking mechanism for precise shaft positioning.

Dual optical paths with filter positioning devices enable parallel physiological parameter determination without compromising temporal resolution.

A dual-direction pump rotates to direct fluid through distinct channel combinations.

A channel connector with multiple conduits and isolation means separates fluid paths within an endoscope body.

A Nitinol distal basket expands to capture hard thrombi, eliminating vessel injury risks.

Feedback control monitors distal end voltage fluctuations caused by reduced cable diameter and adjusts the power source voltage to maintain stability.

Segmented elevator base with leading portions sandwiches guide wires to prevent disengagement under external forces.

A medical basket uses detachable legs to capture foreign objects within body lumens.

Segmented dissolvable microneedles bypass the impermeable stratum corneum barrier to release therapeutic agents directly into the dermis.

Separate audio channels distinguish stimulus and response sounds, resolving insufficient distinction accuracy in existing latency measurement devices.

An in-vivo imaging device uses multiple illumination sources to provide spectral analysis and color images simultaneously.