Surgery TRIZ Cases

A membrane-sealed, movable-stem valve combines air, water, and cleaning paths to simplify reprocessing and prevent tubing clogs.

This case combines endoscope travel distance, captured images, and magnetic flux detection to locate the distal end inside a subject.

Amphiphilic copolymers suppress protein adhesion; refractive-index matching preserves transparency.

Shape-memory asymmetric disks and local density variation help anchor ASD occluders on inadequate rims and reduce dislodgement risk.

This single-use endoscope changes tip profile to admit tools without enlarging the insertion diameter, reducing sterilization burdens.

A self-expanding wire braid and perforated covering filter embolic debris while preserving a working lumen for retrieval.

TiNOx or ZrNxOy coatings shield orthopedic alloys, limiting allergic reactions while promoting nitric oxide and bone healing.

A wicking pad routes fluid to reagent-based assays, enabling visible waste detection and faster caregiver response.

A folded cable bundle separates the shield before a ferrite bead, reducing electromagnetic interference in medical device handles.

This case combines reflected low-energy shock waves with a treatment composition to improve plaque exposure while reducing discomfort.

An expandable distal working channel keeps a reduced scope profile while passing multiple biopsy instruments for faster collection.

The catheter positions a prefabricated bypass implant through a vessel wall, avoiding open-heart surgery and vessel harvesting.

Marker detection verifies instrument position before UV disinfection.

A wireless hub receives instrument status and directs connected devices to guide assembly, component checks, and maintenance.

A capped, removable finger grip luer adapter separates the needle from the lid, reducing sharps waste and needle-stick risk.

This biodegradable hydrogel resists rapid dissolution, preserves strength, and prevents adhesions for up to 16 days.

A retained humeral stem and angled inserts support precise conversion from anatomic replacement to reverse shoulder reconstruction.

Surface activation and polypeptide coating improve AZ31 magnesium alloy biocompatibility, corrosion resistance, and bacterial inhibition.

Individual EEG baselines normalize pain readings while reducing repeated stimulation.

Alternating cutting and trailing edges preserve bone-cutting efficiency while reducing bur vibration, chatter, and user fatigue.

Dust on uncoupled lenses can disrupt communication; bellows and nozzles clean the lens surfaces before data transmission resumes.

A gas-impermeable covered stent uses pressure differentials to reduce friction during delivery, then expands to capture thrombus.

A predictor adjusts ultrasound acquisition frequency for each imaging task, balancing IVUS resolution, field-of-view, and noise.

Malleable arms and a spiral torsion spring provide dynamic, uniform skin flap traction while reducing manual assistance and operative time.

A disposable dental mirror holder integrates suction to remove moisture and debris, preserving visibility without manual cleaning.

A filtered, transparent capture container separates stone fragments from waste fluid and supports intraoperative volume and size assessment.

A jumper wire grounds the endoscope image pickup instrument for continuity testing.

Demineralized bone fibers use vacuum or pressure infusion to deliver biologic material and support aligned, rapid bone repair.

A multi-layer structure and self-retracting piercing element standardize substance quantity and skin penetration depth.

A digital filter delays gain changes to match iris response, reducing brightness discomfort and resolution loss during imaging adjustment.

Amino acid copolymer grafting builds hydrophilic implant coatings that limit scaling, protein adsorption, and bacterial adhesion.

This thrombectomy case separates radiopaque elements from the shape-memory structure to support expansion, imaging, and clot retention.

An inclined measurement-light axis and adaptive spot marker support accurate sizing while keeping endoscope processing simple.

Periodic electric fields create protein films that reduce thrombosis and support endothelialization.

Removable sponge sections support endoscopic vacuum treatment and controlled wound drainage.

A glass-free pH sensor supports comfortable at-home vaginal health monitoring.

This case uses a biodegradable microneedle array to deliver allergens rapidly into the dermis for more accurate allergy diagnosis.

Increasing inner diameters and interchangeable adapters reduce clogs while supporting quick switching between surgical instruments.

An adapter wedges open a slit to merge the guidewire continuously, reducing displacement during endoscopic device exchange.

This surgical unit uses guided, adjustable burrs to vary reaming diameter and prepare acetabular and femoral surfaces precisely.

This case combines magnesium with a glass-fiber polymer matrix to match bone strength, control corrosion, and support bone regeneration.

Different-sized gas and liquid openings manage pressure at the joining portion, preventing liquid from being injected with air.

Real-time infrared imaging localizes a stainless-steel probe while a polyimide microtube samples meibum and acts as a stent.

This case shows how a wire-frame occluder and linear actuator simplify catheter deployment while enabling repositioning and retrieval.

Crosslinked collagen and soy protein isolate form hollow channels that support nerve regeneration while limiting swelling and degradation.

This case uses an IVUS-PIM and wireless router to reduce cabling while distributing processed ultrasound image data.

This case combines coaxial IR sources and image capture with dynamic illumination control for clearer, lower-exposure procedure imaging.

Small-area observation tracking shows indications when state changes, preserving endoscopic image visibility and user focus.

An oblique insertion path and in-body pivoting help position L5-S1 disc implants while limiting vascular and nerve disruption.

A movable-body stopper uses a breakable septum and distinct perforator to control release, limit leakage, and protect substance integrity.