| abstract |
An apparatus and method for providing an inner balloon sheath are disclosed. One device includes a sheath for insertion through arterotomy in a patient. The sheath includes a tubular sheath body having a longitudinal axis, an open proximal end, an open distal end, an outer surface and an inner surface, the inner surface defining a lumen between the proximal and distal ends for passage of the catheter device. The sheath also includes an inflatable balloon disposed within the lumen. The inflatable balloon is configured to occupy a longitudinal space in the lumen between the catheter device and the inner surface of the sheath body and fluidly seal the lumen when the catheter device is disposed within the sheath and the balloon is inflated. |