Catheter TRIZ Cases

Constructing dynamic spatial filters from channel information augments EEG signals, resolving noise suppression and feature enhancement trade-offs.

Continuous filaments transform between braid and coil patterns along the catheter length, resolving stiffness trade-offs in tortuous vascular paths.

A conformal elastic cover seals device joints to prevent blood adhesion and infection risks while simplifying cleaning procedures.

Lateral sensor heads shift plug connections perpendicular to insertion, preventing deeper cannula penetration and reducing patient pain.

Elastic pegs on a skin-adhered base mechanically secure catheters, eliminating adhesive residue and removal pain.

A wrist-worn device derives respiratory frequency from hemodynamic signals to calculate training effect parameters.

A urinary output device uses a load cell to measure fluid weight and transmits data wirelessly for continuous patient tracking.

Ultraviolet cross-linking of nitrile-modified polysiloxane eliminates metal catalyst residues and coating detachment in medical catheters.

A microwave ablation catheter incorporates an independent electrical sensing system to enable precise tissue targeting.

A spring-loaded valve mechanism integrated into catheter tubes opens under urine pressure to allow flow and closes immediately when flow ceases.

A drive mechanism adjusts pull wire tension to curve the distal dipole antenna, shifting the ablation zone for precise placement in tortuous airways.

A catheter delivers targeted energy to ablate aortic valve leaflets during transcatheter procedures.

A steerable atherectomy catheter uses a rotating helical cutter to remove plaque from blood vessels.