Heart Valves TRIZ Cases

A composite sealing member with texturized yarns promotes outward thrombus formation, preventing paravalvular leakage and tissue damage during expansion.

A collapsible shape memory frame expands to retain cardiac cell constructs around the heart.

A delivery catheter uses a capsule segment and cinch mechanism to hold a heart valve prosthesis in a reduced diameter state.

A valve repair device uses movable paddles and an expanding spacer to attach to native heart tissue.

A tricuspid valve support device uses a tilting flow optimizer to seal regurgitant orifices during systole.

An arcuate transvalvular band reduces mitral regurgitation by displacing the central portion toward the left ventricle, advancing coaption timing.

Porous reinforcing edges anchor the main polymer body, resolving uneven stress distribution and improving tear resistance at suture points.

Shape memory wires form a self-centering waist that adapts to defect geometry, reducing thrombus formation through ePTFE coverings.

A transvalvular intraannular band reduces mitral regurgitation by enhancing leaflet coaptation without open surgery.

Endovascular tethers anchor across heart walls to reshape the ventricle, bypassing open-heart surgery risks.

Perpendicular anchors on a self-expanding frame secure the prosthesis, resolving sealing capability issues against native anatomy interference.

Extracellular matrix valve uses elongated engagement members to attach securely to papillary muscles.

A prosthetic heart valve stent integrates a prolapse prevention structure to engage native leaflets at their coaptation point.

Anchoring a delivery lead to the ventricular myocardium bypasses fragile tricuspid tissue, enabling secure prosthetic placement.

A pneumatic handle uses pressurized fluid to drive a piston, providing mechanical force assist for valve deployment.

A ventricular partitioning device reduces heart volume by dividing the chamber into functional segments.

An expandable bumper provides a ramped surface to guide the delivery capsule over prosthetic valves.

Billowing sealing members expand against retrograde blood flow to fill gaps between prosthetic valves and native tissue, reducing paravalvular leakage.

Membrane pervaporation maintains constant glutaraldehyde concentration and low pressure to preserve collagen structure during bioprosthetic valve cross-linking.

Clamps couple expansion assemblies to valve frames, preventing recompression and allowing delivery system retrieval without losing positioning control.

A prosthetic heart valve frame incorporates a stiffening member to limit ovalization and prevent perivalvular leakage during implantation.

Thermoforming unstabilized e-PTFE membranes above their freezing point to create complex hemocompatible shapes.

An integrated transcatheter platform uses radiofrequency energy to sever tissue connections and capture clips, eliminating the need for open heart surgery.

Catheter-based delivery systems deploy mitral valve repair devices via cinching lines, reducing surgical invasiveness.

Planar central zone in prosthetic heart valve leaflets minimizes bending stress during cyclic operation.

A mechanical lock mechanism on an expandable anchor allows reversible valve placement, preventing migration and paravalvular regurgitation.

Segmented flexible retainer conforms to irregular mitral annulus geometry, preventing backflow and ensuring stable anchoring against distorting cardiac forces.

Segmented Nitinol armature anchors the cardiac valve prosthesis in Valsalva sinuses, resisting hydraulic displacement without tissue stress.

A self-expanding tubular body incorporates a preformed groove and barbed trapping member to anchor the prosthesis within native valve tissue.

Flexible sealing skirt adapts to native anatomy, reducing paravalvular leakage caused by high transvalvular pressure differences.

An integrated dual valve prosthesis offsets aortic and mitral sections via an annular frame, reducing paravalvular leakage risk during single-step implantation.

An irregular sealing cuff conforms to uneven calcification, preventing perivalvular leakage without excessive radial force.

Segmented anchors with atraumatic loops engage tissue without radial force, preventing paravalvular leakage.

Glutaraldehyde cross-linking of kidney capsule tissue reduces wall thickness while maintaining structural integrity for implantable valves.

Patches absorb mechanical stress at commissure attachment features to protect leaflet tissue from rigid stent forces.

Segmented conical anchor frame distributes forces across the heart apex, preventing tissue trauma and deformation during valve implantation.

Annealed stainless steel reusable clip sizing tool reduces medical waste and sterilization costs while maintaining accuracy through multiple autoclave cycles.

Multi-axis movement coordinates the delivery nozzle and support body to deposit biocompatible fluids, enabling complex shapes with varying curvature radii.

An expandable sheath reversibly expands to accommodate delivery devices while maintaining a small insertion profile.

A prosthetic aortic conduit features pre-shaped terminal ends with scalloped tongues to match bicuspid and tricuspid valve annuli.

A stented prosthetic heart valve wrap deploys automatically to seal the stent frame during transcatheter delivery.

A valve prosthesis assembly integrates an inner and outer graft layer to create a pre-assembled unit for surgical implantation.

An asymmetric outer tube release end face matches the valve prosthesis geometry to prevent offset during mitral and tricuspid valve implantation.

A catheter implant attaches to native chordae tendineae and shortens their functional length.

A prosthetic heart valve leaflet clip captures native tissue to maintain the blood flow orifice.

A collapsible filter deployed in the ascending aorta traps embolic debris during heart valve implantation, preventing circulation into smaller blood vessels.

An elastic retractor body expands to spread atrial tissue, maintaining a clear surgical view without obstructing instrument access.

Chordal capture elements anchor a prosthetic heart valve to papillary muscles, preventing migration in dilated ventricles where calcification is absent.