Heart Valves TRIZ Cases

Segmented shape-memory alloy arms adapt to varying tissue contours, resolving insufficient clamping stability in mitral regurgitation repair.

Anisotropic block copolymer phase structures reduce stress concentration in prosthetic heart valves, extending lifespan while maintaining blood compatibility.

A coaxial implant loading apparatus aligns and compresses a stent using a removable guide base.

A prosthetic valve incorporates regurgitation means that gradually become ineffective to allow the heart muscle to adapt to new blood flow dynamics.

An inflatable pouch expands radially to anchor a prosthetic heart valve, preventing regurgitation in dilated annuli.

Atrial flare portion distributes anchoring forces to prevent migration and paravalvular leakage in smaller native valve annuli.

Distal anchor on protective tube prevents device displacement into coronary sinus, maintaining circumferential compression on the mitral annulus.

A prosthetic heart valve uses a constraining band on the inner frame to limit expansion diameter during deployment.

Bioactive mesh captures cells to form a biological matrix that mimics native heart valve leaflet function.

Varying strut thickness in the stent framework enables adaptation to a D-shaped mitral valve annulus.

Prosthetic valve protrusions displace native leaflets distally, preventing obstruction of coronary ostia and maintaining reliable valve function.

Segmented catheters with shape memory anchors stabilize flexible guidewires in large vessels, resolving control issues from limited 2D imaging.

Segmented outer and nested inner stents anchor securely to prevent paravalvular leaks and left ventricular outflow tract obstruction.

A segmented stent valve expands radially to fit smaller passageways, reducing perivalvular leakage risk during deployment.

Flexible retaining element flexes under pulling force to disengage from outer sleeve apertures, preventing actuator rotation during valve deployment.

Segmented sealing member protrusions engage the native annulus to limit paravalvular leakage during minimally invasive heart valve deployment.

Elevated elastin content in juvenile calf pericardium resolves the trade-off between device strength and profile size for percutaneous heart valves.

Twisting a deformable base transitions an anchor device between configurations, providing consistent fixturing force to reduce heart-lung bypass duration.

Stent frames with radial flares anchor in the mitral annulus, preventing obstruction of the left ventricular outflow tract.

Acoustic sensing replaces mechanical linkages to detect actuator detachment, preventing accidental extraction of the implanted valve.

An expandable mesh atrial-fixation member supports a radially inward baffle that approximates native leaflets, reducing invasiveness in mitral valve repair.

Controlled humidity crosslinking prevents calcium deposition in extracellular matrix valves, eliminating anticoagulation requirements.

Coaxially arranged tubular components with asymmetrically secured edges resolve mechanical weakness in single-tube structures, reducing failure risk.

Radiopaque asymmetric markers on control arms resolve depth ambiguity in fluoroscopic imaging to ensure precise prosthetic heart valve orientation.

A planar prosthetic tissue valve uses a biointegrating sewing ring to adapt to uneven annulus contours.

A self-expanding framing member enables precise placement of prosthetic structures within body lumens.

A transcatheter pulmonary valve assembly uses a wire-based ball-shaped anchoring section to secure the device within the native pulmonary arteries.

Looped sheathing aids engage tissue adjacent a native valve annulus to limit distal advancement of the implantable heart valve.

Magnetic field induction on spline coils maps elliptical geometry to reduce paravalvular regurgitation risk.

Aldehyde capping agents modify bioprosthetic tissue surfaces, blocking calcium binding sites and reducing oxidative damage during sterilization.

A protective bridge device supports annuloplasty tensioning elements within the coronary sinus to safeguard underlying coronary arteries from mechanical stress.

A partitioned valve repair device simplifies surgical attachment of leaflet portions to muscle segments using pre-configured chords.

Mobile flaps with minimized articulation facets reduce exterior surface area in contact with articular extensions.

Segmented stent arms resolve the stability versus coronary access trade-off by enabling precise repositioning and maintaining vessel patency.

Intertwined wires form a twist to lock the valve, resolving delivery system complexity while preventing recompression.

A prosthetic heart valve with a radial mesh stent adapts to patient growth without surgical replacement.

A self-expandable tubular body features a flared inflow end and disconnected proximal cells for anatomical conformity.

A percutaneous valve prosthesis uses a memory metal frame and tissue cover to secure the device within the native annulus.

A segmented delivery catheter uses independent pull wire assemblies to drive distinct bending angles, solving insufficient bending control in blood vessels.

Glutaraldehyde cross-linked pericardial ribbons and microneedle anchoring mechanisms secure attachment to cardiovascular structures.

An oblique stent aligns a prosthetic heart valve with the aortic annulus, reducing interference with adjacent mitral structures.

Segmented cooling protocols prevent thermal stress damage during prosthetic tissue valve preservation.

Measuring soluble endothelial protein C receptor levels in blood samples provides a sensitive diagnostic method for bioprosthetic valve calcification.

Segmented arms anchor and twist heart chords to seal the valve against regurgitation from annulus dilation.