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.

Variable thickness commissure posts bend radially inward to lower peak stresses, improving tissue durability and frame strength.

Segmented arms deploy from a catheter to catch all tricuspid flaps, reducing regurgitation without causing stenosis.

A delivery system deposits biocompatible fluid substances onto support bodies using relative movement with at least three degrees of freedom.

Fluid-filled hollow tubes deliver reactive pressure and high-concentration medication directly to cardiac tissue, resolving passive device limitations.

Pre-formed coronary apertures in the vascular prosthesis eliminate manual cutting, reducing seal failure and distortion risks during implantation.

A heart valve prosthesis uses nested fixing rods within a stent body to secure leaflets without increasing the device outer diameter.

A shape memory alloy coil with embedded magnets creates a controlled cardiac shunt through gradual tissue compression.

Electrospun polyisobutylene urethane fibers embedded in a polymer matrix reinforce prosthetic heart valve leaflets against calcification and tearing.

Rotating arcuate fingers deflect aortic valve posts inward, reducing the effective diameter for safer implantation.

A prosthetic heart valve integrates radiopaque elements to enhance fluoroscopic visibility of commissure posts.

A neo-leaflet anchored in the ventricle creates a coaptation surface that reduces regurgitation and improves valve closure function.

A motor-driven blade array shears fibers from ex vivo pericardial tissue submerged in liquid.

Distinct holes guide precise suture marks on pericardium, eliminating visual estimation errors during valve cusp formation.

Segmented self-expanding scaffold curves radially away from the stent to bridge gaps between the prosthesis and native tissue.

Nested leaflets with whip stitches reduce unexpanded profile, allowing smaller catheters and minimizing tissue damage during percutaneous implantation.

Granulate distributes pressure to prevent fiber compaction while enabling uniform glutaraldehyde penetration for homogeneous thickness.

Tensile stretching prevents excessive thickening of biofilm material during crosslinking, preserving mechanical strength for artificial heart valves.

Independent bending of nested flexible catheters increases the controllable angle, enabling precise implant release in narrow cardiac spaces.

A tissue ingrowth promoting coating on an artificial chordae cord regenerates native tissue to mechanically couple heart valve leaflets.

A backing element secures heart valve leaflets between a cantilevered leg and the element through a longitudinal slot.

Aortic filtration devices capture emboli during percutaneous heart valve replacement, preventing stroke risk while maintaining blood flow.

Pivoting paddles and a spacer element fill gaps between mitral valve leaflets, preventing regurgitation without invasive surgical stitching.

Zwitterionic pendant groups on synthetic leaflets prevent calcium deposition and thrombus formation, maintaining blood flow durability.

An automatic repair device applies axial pressure to secure fixation in the mitral valve annulus, preventing coronary artery occlusion and leaflet damage.

Porous fluoropolymer curtains enable tissue integration between frames and leaflets, resolving inflammation and thrombus formation issues.

Segmented inner and outer stent components preserve native leaflets while directing blood flow toward the posterior lateral ventricle side.

An expandable balloon spacer delivered via catheter repositions papillary muscles, reducing mitral regurgitation without open-heart surgery.

Rotation joints in the prosthetic valve frame conform to non-circular annuli, reducing paravalvular leakage.

A self-biased cam mechanism actuates a heart valve anchor, resolving the trade-off between secure anchoring reliability and procedural invasiveness.

Angled fingers prevent prolapse while nitinol connector enables shape memory for reliable one-way blood flow.

Segmented retaining elements capture mitral valve leaflets to enable minimally invasive repair without open heart surgery trauma.