Surgery TRIZ Cases

Angled contact surfaces and flexible arms prevent seizing in complex driver devices while maintaining consistent engagement across wire diameters.

A deformable variable focal length lens dynamically adjusts focus to maintain image clarity across multiple wavelength bands.

A tethered mesh filter assembly uses flexible support members to maintain secure contact with vessel walls during vascular procedures.

Sorting and sampling pixels creates dynamic previews that resolve the contradiction between limited screen space and the need for detailed motility information.

A rotating receptacle collects urine and seals it into discrete packets using heat sealing technology.

Multiple sampling ports along the catheter length collect spatially separated blood samples to create concentration profiles and identify vulnerable plaques.

Processor recognizes beam irradiation regions using color thresholds to resolve detection instability caused by scattered reflection in living tissues.

Segmented lens frames with restricting portions stabilize the drive unit, preventing deformation-induced malfunctions during optical zooming.

Wiring board positions optical device and fiber via through hole, resolving precision trade-offs in compact endoscopes.

Endoscope system separates depth information using structured illumination patterns to remove specular noise from biological tissue images.

A protective sheath assembly for an endoscope incorporates an elongate tubular body with a nested suction lumen to maintain device sterility.

A multi-lens objective optical system uses solid or liquid media in close contact with spherical lenses to refract light and compensate for refractive power.

A processor calculates relative motion amounts between an imaging section and an object to determine focus operations.

Switchable white and narrow-band illumination resolves detection accuracy limits for mucosal lesions without increasing device complexity.

An endoscope system segments images into regions of interest to automate oxygen saturation data correction.

Radiopaque guide lines on acetabular components enable intra-operative fluoroscopic alignment verification.

An embedded radiopaque marker coil delivers fluoroscopic visibility without increasing catheter stiffness or friction.

Variable wall thickness at the integral hinge allows folding for small incision insertion while maintaining structural integrity during deployment.

Periodic wireless transmission eliminates device removal, resolving battery replacement trade-offs.

A catheter inner liner uses partial cuts in its distal section to increase bending flexibility while maintaining tensile strength.

Independent X and Y driving devices vibrate a cantilevered optical fiber at different frequencies to achieve uniform raster scanning speed.

A lighting optical device uses a rod-like element and spaced lenses to guide illumination light efficiently.

Variable acoustic impedance segments eliminate nodal gaps in ultrasonic end effectors, increasing active length and improving tissue cutting precision.

A clot engaging structure uses a distal end coupler to transmit withdrawal forces away from the proximal end.

A dual-narrowband endoscopic system increases excitation light emission to enhance autofluorescence image quality.

Segmented electrodes and vacuum pumps treat sexual dysfunction by increasing blood volume in erectile tissue without external hand-held devices.

A flexible substrate and liquid electrolyte form a viscous composite that adheres to organ tissue surfaces.

A nerve integrity monitoring system processes input signals to detect electromyographic activity and electrical artifacts simultaneously.

Segmented external channel allows simultaneous laser fragmentation and suction, eliminating fiber removal delays during kidney stone procedures.

A microstructured surface on bioresorbable magnesium alloy stents improves polymer adhesion through controlled pickling and electropolishing.

A surgical retractor uses a deformable frame with intersecting strands to provide stable bowel retraction.

A medical injector control unit integrates fluid pressure over time to determine a pressure integral for pump operation.

A catheter-integrated pressure sensor measures bladder volume and pressure in real-time, replacing invasive urodynamic testing with continuous monitoring.

A prosthetic augment uses a bulbous surface to alter muscle wrapping angles and increase the deltoid moment arm.

Chemical corrosion creates uniform holes for firm antibody attachment while preserving biological activity.

Integrated clamping device merges multiple holding elements into a single unit, eliminating time-consuming sequential threading operations.

Freeze-thaw cycles bond hydrogel to porous rigid base, resolving interface failure under joint loads.

A capsule endoscopy system uses an internal gyroscope to track image axis orientation relative to the subject body frame.

A refractive index gradient optical bar serves as both the structural support and light waveguide for an endoscopic device.

An indwelling temperature sensor captures basal body temperature readings over extended periods to identify representative thermal values.

An expandable catheter member engages thrombi via radial expansion, reducing revascularization time by improving clot aspiration efficiency.

A mattress pressure sensor detects breathing patterns to predict clinical episodes.

An eccentric endoscope accessory positions the laparoscope off-center to create a larger radial conduit within a compact sleeve.

A pivot joint device couples an image capture unit to the shaft, allowing directional adjustment without longitudinal rotation.

A toilet-mounted temperature sensor measures excretion thermal profiles to determine subject core body temperature.

Continuous vaginal temperature analysis detects homogeneity breaks to predict ovulation timing without manual monitoring.