Patent ID: 6074405
Filing Date: 2000-06-13
Classification: A61B,A61F

Abstract:
An improved medical instrument for removing lumen obstructions, said instrument comprising, in combination:a) an elongated handle having a front portion, an opposite rear portion and a generally central cavity extending substantially the length of said handle;b) an elongated tube connected to and extending from said front portion of said handle, said tube having a front portion, a rear portion and a cavity extending the length thereof and communicating with said handle cavity;c) a flexible resilient wire extending through said handle and tube cavities and having a front portion and opposite rear portion, said front portion being prestressed so that when it is extended from said front portion of said tube it is automatically curved into an arc partially extending toward said front portion of said tube to form a scoop for contacting and removing an obstruction from a lumen; and,d) spring means connected to said rear portion of said wire and extending out from the exterior of said handle, said spring means biasing said wire into said tube but manually operable against said bias to extend said front portion of said wire out of said front portion of said tube.