Patent ID: 6258067
Filing Date: 2001-07-10
Classification: A61F,A61M

Abstract:
An aspirator for extracting fluids from a middle ear, said aspirator comprising:a housing having a compartment and an aperture;a needle carried by said housing at said aperture, said needle having a tip, said needle having a bore extending longitudinally therethrough, said bore being in fluid communication through said aperture with said compartment;a handle carried by said housing and movable with respect to said housing, said needle having a curved portion so that a user can sight down said needle toward said tip while holding said handle to the side;a sheath carried by said needle, said sheath movable axially between a first position that shields said tip of said needle and a second position that exposes said tip, said sheath moving from said first to said second positions when said sheath meets resistance; andextraction means responsive to movement of said handle with respect to said housing for applying a negative pressure to said compartment so that, when said needle penetrates said middle ear and said handle is moved toward said needle, said fluid is drawn through said needle into said compartment.