Subdural drainage catheters with self contained mechanism for restoration of flow following catheter obstruction

摘要

A subdural drainage system includes: (a) a subdural drainage device having an opening formed therethrough, said subdural drainage device having an upper portion, a body portion, and a lower portion; (b) a housing having an upper portion and lower portion, with said housing connected to said subdural drainage device; said housing movable between (i) a first configuration and (ii) a second configuration; and (c) an elongated element positioned inside said housing, said elongated element having an upper portion, a lower portion and a deformable member connected to the lower portion; said elongated element being configured such that said elongated element is moved between (i) a retracted position with said elongated element inside a portion of said subdural drainage device and said deformable member inside said housing, and (ii) an extended position with said elongated element extending through said subdural drainage device such that said deformable member automatically extends to an extended, deformed position in which blockages are disrupted in the subdural drainage device when said housing is moved between said first and second housing configurations; and (d) an external drain opening formed on either said subdural drainage device or said housing.