A computational study of knitted Nitinol meshes for their prospective use as external vein reinforcement.

Knitted nitinol represents a new generation of constrictive external vein graft meshes.

OBJECTIVE Constriction of vein grafts with braided external nitinol meshes had previously led to the successful elimination of neointimal tissue formation. We investigated whether pulse compliance, smaller kink-free bending radius, and milder medial atrophy can be achieved by knitting the meshes rather than braiding, without losing the suppressive effect on intimal hyperplasia. METHODS Pulse ...

Tailored sizes of constrictive external vein meshes for coronary artery bypass surgery.

External mesh constriction of vein grafts was shown to mitigate intimal hyperplasia by lowering circumferential wall stress and increasing fluid shear stress. As under-constriction leaves vein segments unsupported and thus prone to neointimal proliferation while over-constriction may cause wall folding optimal mesh sizing holds a key to clinical success. Diameter fluctuations and the occurrence...

Computerized tomographic angiography in patients having eSVS Mesh® supported coronary saphenous vein grafts: intermediate term results

BACKGROUND The Saphenous Vein (SVG) is used in over 80% of coronary artery bypass procedures (CABG) and SVG patency is the Achilles heel of CABG. To address this issue, the eSVS Mesh(R), an external Nitinol knitted mesh, fitted like a sleeve over the vein graft preventing over expansion in the high pressure arterial system, has been introduced to improve disease management. Patency data is limi...

Analyzing the Tensile Behavior of Warp-Knitted Fabric Reinforced Composites Part I: Modeling the Geometry of Reinforcement

Nitinol Spinal Vertebrae: A Favorable New Substitute

Scoliosis, kyphosis, and bone fracture are health problems, especially of the elderly throughout the world. The vertebra protects the spinal cord. Any impairment to the vertebra can lead to pain and nervousness. Ni-Ti alloy (Nitinol) helps to resolve the problem by fulfilling such requirements as for strength, durability, resistance to wear, and shockwave damping which is due to the shape memor...