Heart Valves TRIZ Cases

Curved support rods in an expandable sheath enable smooth implant retraction, preventing stuck mechanisms and surgical damage.

Albumin lubricant in catheter lumen reduces friction between inner and outer shafts, preventing binding during prosthetic heart valve deployment.

Segmented compression elements apply uniform radial force to stents, preventing deformation during diameter reduction.

A synthetic mesh carrier device fixes electronic elements to organ tissue, preventing traumatic damage and dislocation.

An occlusion device with rounded peripheral edges conforms to irregular anatomy to seal paravalvular leaks while maintaining unrestricted blood flow.

Dual sutures on the holder constrict the stent, then release simultaneously at a cutting well to expand the anchoring structure and reduce surgical time.

A stentless bioprosthetic valve integrates prosthetic chordae to support leaflets and maintain subvalvular continuity.

An implantable liner prevents stroke by covering the left atrium, avoiding hemorrhaging risks from anticoagulants.

Variable cell sizes and an extended cuff reduce paravalvular leakage while preserving coronary perfusion.

Pre-operative planning calculates optimal patch geometries to reduce graft deformations and minimize surgical duration.

A bioabsorbable polymer gasket expands to fit a vessel and securely engages an implantable heart valve.

Vibrating a catheter-based element fractures calcifications, enabling proper valve dilation and reducing paravalvular leaks.

Elliptical aortic valve devices align leaflets through flared commissure regions to address geometric complexity.

Downstream appendages narrow a flexible pouch to promote blood coagulation and reduce paravalvular leakage.

Segmented barb structures distribute anchoring force across the mitral valve annulus, preventing fatigue failure while maintaining stable positioning.

Intravalvular electrical impedance measurement detects valve leaflet movement using localized fields, avoiding interference from blood volume changes.

Flexible paddles and independent grippers attach to mitral leaflets, reducing tissue stress while preventing blood flow back into the left atrium.

A prosthetic heart valve seal uses osmotic pressure to swell upon fluid contact, creating a tight interface with native tissue.

A self-expandable atrioventricular valve uses anchors to clamp the native atrial wall.

Coupling the leaflet frame and outer frame via a contiguous film prevents relative movement, reducing stress concentrations at the mounting edge.

Convex leaflet bases distribute stress and reduce flow resistance, resolving durability and efficiency trade-offs in prosthetic heart valves.

Suture retention members prevent uncontrolled ejection of self-expanding valves, enabling precise deployment without permanent anchoring devices.

Segmenting the armature into distinct zones prevents bending and folding while maintaining stable anchoring in irregular implantation sites.

A dual-frame heart valve uses a nested inner frame to support flexible leaflets for durable prosthetic replacement.

Offset revolute joints in segmented catheter segments restrict bending freedom to single planes, preventing buckling under external forces.

Establishes pressure differential across thick tissue wall to drive decellularization solution, reducing cell content below five percent by weight.

A mitral valve holder tensions attachment sutures to prevent suture looping during delivery.

Composite pyrolytic carbon and Dacron materials reduce electrostatic forces, minimizing thrombosis risk while maintaining structural durability.

Four commissure points on the valve body distribute stress and strain, preventing leaks and migration during percutaneous delivery.

Direct leaflet attachment to stent struts eliminates bulky commissure features, reducing collapsed profile and vessel trauma risk.

Segmenting the retention ring from the valve frame via force decoupling prevents vessel-induced deformation from impairing leaflet function.

Positioning elements transform from distal to proximal orientation using U-shaped support arms to anchor the prosthesis within the native valve.

A balloon sizing device uses embedded microelectromechanical sensors to measure tissue properties during catheter procedures.

Two flexible shape memory wires create parallel plates that self-center in the defect, ensuring complete closure without a central post.

Ventricular arms engage native chordae tendineae to anchor a prosthetic mitral valve against dynamic annulus instability during systole.

Enlarged access cells in the frame design improve coronary artery access while minimizing conduction disturbances to reduce pacemaker implantation.

Electrospun polyurethane scaffold infiltrated with composite layer improves creep resistance and edge tear strength for medical valves.

Segmented wire frame legs transition into anchoring hooks to secure the device in thin mitral annulus tissue.

A prosthetic heart valve uses a segmented frame to transition from compressed delivery to expanded function.

Lyophilization reduces moisture content to enhance structural integrity, resolving the trade-off between compressibility and durability.

U-shaped support arms transform radially to anchor a heart valve prosthesis within a native valve structure.

A valvular embolic filter assembly deploys in the aortic root to capture calcium debris during transcatheter procedures.

Concave inflow contours and conical tapering enable precise deployment of heart valve prostheses while avoiding coronary artery obstruction.

Lower bearing members positioned away from the leading edge reduce water hammer wear on leaflets, extending service life.

A catheter-delivered inflatable valve body expands through an injection port to restrict blood flow reversal, avoiding open-heart surgery risks.

Covalently attaching antioxidants to glutaraldehyde-fixed bioprosthetic tissue resolves the trade-off between mechanical strength and oxidative resistance.

An acellular extracellular matrix construct expands upon fluid absorption to mechanically abate perivalvular leaks while promoting tissue remodeling.

Diverging gripping elements capture mitral valve leaflets for precise alignment during cardiac repair procedures.

Plication tissue anchors on a transcatheter heart valve engage the annulus to prevent migration and leakage.