CELL COLLECTOR HAVING AN EXPANDABLE MESH

摘要

A cell collection device having an elongated member and a mesh disposed about the elongated member. The mesh has a low energy expanded state and a high energy compressed state. A sheath is disposed about a distal end of the elongated member and is slidable along the elongated member from a first position in which the sheath radially constrains the mesh to the high energy compressed state and a second position in which the sheath does not constrain the mesh.

主权项

1. A cell collection device comprising:
an elongated member having a distal end, a proximal end, and an outside diameter; a mesh comprised of a plurality of interwoven filaments biased to expand outward to a deployed diameter greater than the outside diameter of the elongated member, a first end of the mesh secured about the elongated member, and a second end of the mesh secured about the elongated member, the first end of the mesh being fixed axially and the second end of the mesh free to translate axially along the elongated member; and a sleeve disposed about the distal end of the elongated member, the sleeve having a bore with an inside diameter greater than the outside diameter of the elongated member and less than the deployed diameter and being axially slidable along the elongated member from a first position that radially constrains the plurality of interwoven filaments to a first configuration and a second position that does not radially restrain the plurality of interwoven filaments allowing the plurality of interwoven filaments to expand to the deployed diameter.