Surgery TRIZ Cases

Acoustic hemodynography replaces electrode arrays with an in-ear sensor, resolving the trade-off between measurement precision and device complexity.

Processor calculates ranging information from phase difference pixels to adjust focal positions in endoscope systems.

An inner cable shortens the pitch of a helical distal portion to minimize strain on blood clots and prevent fragmentation in small vessels.

Tapered transition connector secures ultrasound transmission member via variable crimping force distribution.

Dilator tubes and tamping tools enable precise transplantation of cell-laden amniotic membranes, reducing tissue damage during minimally invasive joint surgery.

Endoscopic optic canal exposure allows quantifiable impact force application, resolving contradictions between clinical fidelity and animal survival rates.

Segmented elevator and bearing components enable separate cleaning without increasing the leading end section size.

Varying cross-sections concentrate stress on calculi while preventing probe breakage at high power.

Polycationic polymers improve drug transfer efficiency during brief inflation periods.

A medical endoscope device compression-encodes RAW image data and wirelessly transmits the encoded stream to an external receiver.

Convex and concave grip curves distribute pressure along finger joints, preventing unnecessary force application during endoscope operation.

A one-handed aspirator uses a ratcheting lever to extract syringe plungers via squeeze motion.

Low-melting-point resin bonds porous needle portions to a base material, preventing thermal deformation during manufacturing.

An endoscope system adjusts frame rate based on detected insertion speed to prevent fragmented images and ensure complete cavity observation.

A processor controls a variable magnification lens position by calculating the time-integrated counter-electromotive force from a brushed DC motor drive circuit.

A surgical cutting tool creates conical bone cavities using primary and secondary surfaces guided by a cannulated rod.

An automated mechanism changes the internal angle between imaging sensors based on detected subject distance to resolve manual adjustment bottlenecks.

A detachable light assembly connects to a disposable medical device body via a pressing-conductive arm and power supply module.

Integrating the stopper with the fixed barrel reduces structural complexity and improves focal distance precision for zooming functions.

A switchable grounding system alters electrical impedance to disperse static charges via conductive plastic connectors.

An endoscope uses an inclined mask to restrict sideward light emission from a side illumination window.

Asymmetric drive voltages with non-zero centers balance ferrule forces, resolving the contradiction between expanded scanning coverage and mechanical stability.

Central isolator opening accepts anchor pin at shared nodal position, minimizing vibration transfer while resolving manufacturing complexity.

A polarizing filter on the optical path adjusts incident light luminance to prevent pixel value saturation in medical observation systems.

A tilt input portion with a clutch mechanism adjusts operation wire pull length for intuitive endoscope curvature.

Segmented esophageal heating zones and dynamic feedback algorithms resolve the contradiction between precise temperature control and rapid adjustment speed.

A detector position indicating apparatus uses light transmitting plates and emitting units to show real-time detector location on an examination table.

Segmented endoscope design separates reusable imaging components from disposable insertion shafts to reduce inventory costs.

Shape memory hub compresses magnet assembly for narrow lumen passage, resolving structural integrity versus deliverability trade-offs.

A three-layer coated stent delivers mTOR inhibitors via a biodegradable polymer matrix to prevent restenosis while avoiding delayed endothelization.

A sensor communication unit transmits signals wirelessly to an insertion aid, bypassing operation site interference for stable monitoring.

Nanometric liposomes dispersed in a biodegradable polymer matrix decouple drug release kinetics from polymer degradation, preventing uncontrolled burst release.

PECVD amorphous silicon carbide reduces foreign body response while maintaining buckling resistance.

A multi-layer endoscope tube uses distinct blade densities to manage contact loads and assembly forces.

An acidic and basic polymer layer grafted onto a polysiloxane base material resolves dryness and adhesion issues in low water content soft contact lenses.

A one-piece eyelid separator device uses a hook-shaped shoulder to pull the upper eyelid and features multiple orifices for needle insertion.

A pulley-driven bending mechanism uses elastically deformable C-shaped annular members to guide pulling member winding paths.

A resin bearing reduces frictional resistance in the endoscope transmission mechanism, improving operational comfort and control accuracy.

A distal perfusion sheath reroutes blood flow through a dedicated lumen, preventing ischemia during prolonged endovascular procedures.

Integrally formed anchor body secures tendon to bone via concave walls and ribs.

Rack and pinion gear system enables incremental articulation of a distal shaft component within a surgical access instrument.

A distal tip housing with bulged portions increases wall thickness to accommodate camera modules within small-diameter endoscopes.

A nitinol distal body expands to capture thrombi within blood vessels.

A tibial prosthesis integrates a slidable shim and embedded sensors to adjust spacing during surgery.

Mapping software projects immersive visuals onto the gantry to reduce patient anxiety and movement during treatment.

A double dome intervertebral prosthesis endplate design with unequal antero-posterior dimensions provides enhanced torsional resistance.

An identification resin attached to the sealing resin creates visual markers that resolve orientation ambiguity in miniaturized endoscope imaging modules.