Abiomed, Inc.

Clifford M Liu

Glen Robert Fantuzzi

Christopher Nason Korkuch

John Modlish

Drew Calabrese

Devices and methods for providing a kink resistant peel away sheath are disclosed. One device includes a sheath for insertion into a vasculature of a patient. The sheath comprises a sheath body having an outer surface, a longitudinal axis and a lumen formed therethrough. The sheath body comprises an inner layer arranged about the longitudinal axis, an outer layer coaxially arranged with the inner layer, and a support layer positioned between the inner and outer layers, wherein the inner, outer and support layers are laminated together to form the sheath body. The sheath also comprises at least one shear line positioned beneath the outer surface of the sheath body, and configured to facilitate the longitudinal separation of the sheath body along the at least one shear line.

Kink resistant peel away sheath

Systems and methods for a multi-layered peel-away sheath assembly for insertion of a blood pump, the peel-away sheath assembly including a sheath hub and a sheath body having a proximal end that is connected to the sheath hub, and a distal end. The sheath body comprises multiple layers including a reinforcing layer. The reinforcing layer improves flexibility and kink resistance of the assembly. The reinforcing layer can comprise LCP, PEBAX, stainless steel, Nitinol, or Kevlar. The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. A first layer material and a third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one discontinuity, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner notches, outer notches, or both inner notches and outer notches. The sheath hub also includes a discontinuity to allow the sheath hub to peel-away.

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Danvers, MA, United States of America

Clifford M Liu