Heart Valves TRIZ Cases

A dual-frame prosthetic valve transitions from a compressed delivery state to an expanded functional configuration.

Baffle structure induces vortical flow to replicate natural blood hemodynamics, resolving abnormal flow patterns in transcatheter valves.

Retractable wire loops position a direct cardiac compression device around the heart, resolving surgical invasiveness through catheter-based delivery.

Connection apertures in the frame strut enable secure coupling of polymeric leaflets, eliminating sutures and minimizing blood flow leakage under stress.

Segmenting leaflet edges into folded and stretching zones lowers bottom volume, easing delivery through vessels.

Composite leaflets with pre-stressed fibers balance tensile loads to reduce mechanical stress while maintaining hemodynamic performance.

Hydrogel in a separate compartment regulates humidity through a semi-permeable membrane, preventing tissue drying during ethylene oxide sterilization.

Segmented anchors and local quality barbs stabilize the sleeve to prevent migration while minimizing tissue necrosis.

Helical cardiac anchor embeds into myocardium to secure suture tension.

Braided wire leaflets prevent erosion and tearing in prosthetic heart valves by closing pores via acute clotting and endothelialization.

A conformable occluder device seals gaps between prosthetic and native heart valves using an expandable body and disk.

A percutaneous implant replaces complex surgical repair by dynamically adjusting an occluding member diameter to secure leaflet coaptation and prevent backflow.

Metal oxide coatings protect thin polymeric fibers from in vivo degradation, resolving the contradiction between high surface area and reliability.

Retrograde flow pockets on an expandable heart valve framework redirect fluid to prevent paravalvular leakage.

Nested nickel-titanium frames linked by coupling arms reduce implant volume for minimally invasive delivery while maintaining structural strength.

Anchoring to papillary muscle, the device pulls leaflet edges together via tensioned branches to prevent regurgitation while maintaining inflow.

Catheter delivers an expandable ring and prosthetic valve to replace diseased cardiac valves, avoiding open-heart surgery risks.

A bioprosthetic heart valve merges biological tissue and biocompatible material into a single integrated layer to form leaflets and stent coverage.