Stents TRIZ Cases

Segmented flexible braided implants achieve high packing densities and tissue ingrowth without increasing delivery stiffness or rupture risk.

Polyvinylpyrrolidone-based lubricious coating forms a durable hydrogel layer on medical substrates.

An asymmetric braided stent structure stores elastic energy through differential wire deformation, generating high radial force for vessel wall fixation.

Segmented bioabsorbable layers release polyphenols to prevent restenosis while minimizing endothelial side effects.

A multi-lumen balloon catheter uses integrated radio-opaque markings to enable clear lumen identification during imaging procedures.

A collapsible intravascular pump expands to increase systemic blood flow via a motor-driven shaft with self-expanding blades.

A nested prosthetic valve support system reduces regurgitation by securely anchoring the device while allowing native leaflet movement.

Conductive mesh detects cooling fluid leaks via impedance changes, preventing harmful refrigerant escape during surgery.

A stent delivery system uses a gear rack assembly to retract the deployment sheath and inner member simultaneously.

Rivet joints connect dissimilar stent sections to prevent failure during deployment, enabling controlled expansion and accurate positioning in tortuous anatomy.

Segmented compliant devices ovalize pulmonary arteries to reduce right ventricular afterload.

A coil-tip aneurysm device provides a soft interface to improve neck coverage.

An oblique stent design adapts to vessel branch anatomy through angled end sections that conform to natural bifurcation orientations.

Wrapped barb element secures stent graft via suture stitching, reducing manufacturing costs and handling risks.

Molten fiber wire fixation eliminates protrusions that damage tubular organ walls while maintaining structural strength.

Atomic layer deposited multilayer nanolaminate reflects x-rays, enabling visualization of bioerodible implants without compromising biocompatibility.

L-leucine poly(ester urea) grafts match native vessel compliance to prevent acute thrombotic occlusions in small diameters.

Common restraining wires restrain proximal and distal stent ends, preventing irregular expansion and reducing device complexity.

Secondary stent elements apply chronic outward radial force to modify lumen aspect ratio, resisting external compression in flexible venous systems.

Expandable aortic arch frame deflects emboli downstream via flow-modulating elements, reducing stroke risk without anticoagulation.

Segmented markers with lateral extensions distribute pushing forces to minimize bending and deformation in longer stents.

An asymmetric stent uses differing apex radii to navigate tortuous anatomy while maintaining structural integrity.

A cardiac repair prosthesis set joins a unidirectional valve and blood-impervious stent via a biocompatible element.

A radio-frequency thermal balloon catheter uses vibratory driving to create vertical swirling currents within the fluid.

Holed balloon catheters accept daughter balloons to seal branch openings, preventing vessel damage during inflation.

Thinner connector struts via off-axis laser cutting enhance stent flexibility without sacrificing radial strength needed for lumen patency.

Orthogonal delivery of a large diameter mitral valve avoids acute angle approaches and oversized catheters while the anchoring tab secures the prosthesis.

A catheter connector embeds a printed circuit board to mechanically contact shaft conductors, establishing reliable electrical pathways.

Coiled elements between sinusoidal circular bodies allow radial contraction and conformability, reducing metallic fatigue risk in complex vessels.

Flexible wavy-shaped annular frame members and coil springs allow the device to adapt to peristalsis while maintaining stable positioning.

Bioabsorbable stent uses open exterior channels to maintain fluid flow while degrading, eliminating migration risks.

Helical coil stents adjust length via axial compression to resolve anatomical mismatch and prevent premature expansion during delivery.

A vascular graft spans a lesion between proximal and distal stents to entrap emboli during treatment.

Radially outward supporting members reinforce flap strength while enabling smooth passage through endoscope conduits via nested deployment.

Shape memory control elements change a protective layer from impermeable to permeable, triggering corrosion after the desired service life.

A dynamic engagement wire transitions between secure holding and rapid release states to resolve the trade-off between precise placement and operational ease.

A fused film sheath with compromised structural integrity ruptures during stent expansion to reduce friction and axial loading forces.

Collapsible columns within a stented tubular member create secondary lumens, maintaining perfusion in branching vessels while preventing aneurysm rupture.

A self-expanding infundibular reducer delivery system positions a prosthetic valve within the right ventricular outflow tract without requiring balloon expansion.

Segmented stent modules adapt to complex vascular geometries, preventing leakage and improving fluid flow in aneurysm treatments.

Helical fasteners on fenestrated cuffs anchor short neck anatomy, creating sufficient sealing areas that prevent endoleaks without custom devices.

Protruding tabs on a tubular capsule core fix the implant capsule to the outer shaft, reducing overall length and stiffness compared to rigid adhesive bonds.

An inflatable locking segment secures a guidewire within a blood vessel, reducing equipment exchanges during stent delivery in tortuous anatomy.

Adjustable diameter accommodates changing physiology while preventing dislodgement.

Segmented valve design with a balloon-deployable anchoring skirt reduces extracorporeal circulation time and surgical risk.

Angled fenestrations allow thin-film micromeshes to expand in multiple dimensions, accommodating tortuous neurovascular beds during stent deployment.

A bench-top model uses simulated tissue to apply physiological forces on implantable medical devices.

A prewire channel stent integrates a metallic mesh and balloon with an additional passage for guidewire navigation.

A spherical vascular remodeling device uses polymer filaments to scaffold the aneurysm neck.