Patent ID: 6190371
Filing Date: 2001-02-20
Classification: A61M

Abstract:
A catheter system, comprising:a working catheter having a distal working orifice;a guide catheter having a guide lumen and a distal guide orifice; anda locking mechanism which locks said working catheter relative to said guide catheter in (i) an operative position, and (ii) a stowed position,wherein when said working catheter is locked in said operative position, (i) said working catheter extends through said guide lumen of said guide catheter and out of said distal guide orifice of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned outside of said guide catheter,wherein when said working catheter is locked in said stowed position, (i) said working catheter extends into said guide lumen of said guide catheter, and (ii) said distal working orifice of said working catheter is positioned within said guide lumen of said guide catheter,wherein said locking mechanism includes an internally threaded member attached to said guide catheter,wherein said locking mechanism further includes a first set of external threads and a second set of external threads which are each defined in an exterior surface of said working catheter,wherein said first set of external threads is spaced apart from said second set of external threads,wherein said internally threaded member meshes with said first set of external threads so as to lock said working catheter in said operative position, andwherein said internally threaded member meshes with said second set of external threads so as to lock said working catheter in said stowed position.