Heart Valves TRIZ Cases

Replacing suturing with a mechanical interlock of pins and openings reduces surgical time while preventing blood leakage.

Split and merged strips create a flexible cage that enables catheter navigation while maintaining fixation reliability.

Dynamic cone-shaped membrane resolves the contradiction between aortic regurgitation protection and coronary flow by adapting to cardiac cycle phases.

Wire loops on the distal disc ensure smooth endothelialization, reducing emboli risk while maintaining calibrated opening stability.

Transcatheter clips with ventricular and atrial jaws attach artificial chords to reduce mortality risks in elderly patients unsuitable for open surgery.

Asymmetric frame anchors avoid AV node contact while radial cords prevent deformation under high forces.

Tubular frame expansion with commissure strips anchors collapsible leaflets, reducing wear and enabling minimally invasive delivery.

Liquid nitrogen freezing rigidifies animal tissue membranes, enabling precise thickness reduction without deforming elastic fibers or reducing yield.

Alcohol dehydration and enzymatic treatment remove residual glutaraldehyde toxicity to prevent bioprosthetic heart valve calcification.

Segmented hollow cylinders linked by cruciform connector elements transmit torque while minimizing friction in tortuous anatomy.

A multi-branch catheter system positions distal branches against aortic valve leaflets to enable precise coaxial imaging and instrument alignment.

A transcatheter prosthetic valve system uses a deployable resilient clamping segment to secure anchoring within the heart.

A valved conduit design uses sinuses and rolled leaflet attachment edges to simplify manufacturing.

A cardiac valve delivery device uses a tether system to control the radial expansion and precise placement of distal and proximal anchors.

A color-coded bioprosthetic valve system uses matching adapter and handle colors to simplify component identification during surgical procedures.

Resilient cantilevered fingers push calcified native leaflets radially outward, eliminating interference and improving hemodynamic performance.

A non-radiopaque surgical retractor system uses bendable arms to hold deployment devices during minimally invasive procedures.

Electromagnetic actuation moves the valve closing mechanism to regulate blood flow, reducing leakage through precise positioning.

A square stitch pattern secures prosthetic heart valve leaflets using a single continuous thread to form a robust mechanical bond.

Axially-raised portions on a sewing ring match the malformed D-shape of the mitral annulus, reducing trauma and abrasion during implantation.

Metal oxynitride coatings on prosthetic heart valves reduce metal ion release and adverse tissue reactions while maintaining structural strength.

Radial commissure windows extend the effective orifice area to reduce pressure gradients and maintain coronary access in small diameter prosthetic heart valves.

Pulsatile flow and microwave irradiation remove original cells from xenogenic bioprosthetic valves, preventing calcium deposition and extending durability.