Catheter with valve

摘要

A catheter including one or more bidirectional valves is provided. The catheter includes a tubular body having proximal and distal ends, and inner and outer surfaces, and at least one valve formed near the distal end of the tubular body. The valve includes a deformation portion that defines a slit that is openable and closable. The openable/closable slit communicates from the inner surface to the outer surface of the tubular body, wherein the distance between the inner surface and the outer surface of the tubular body progressively becomes thinner approaching the openable/closable slit within the deformation portion.

主权项

1. A catheter comprising:
a tubular body having proximal and distal ends, and inner and outer surfaces; at least one valve formed near the distal end of the tubular body, the valve being formed in the tubular body and including a deformation portion that defines a slit that is openable and closable, the deformation portion including an oblique surface defining the openable/closable slit, the oblique surface being formed at the outer surface of the tubular body, the openable/closable slit communicating from the inner surface to the outer surface of the tubular body, wherein the distance between the inner surface and the outer surface of the tubular body progressively becomes thinner approaching the openable/closable slit within the deformation portion.