STONE FRAGMENT SUCTION DEVICE

摘要

Apparatus for a stone fragment suction device are provided with fluid flow paths at a distal tip to encourage creation of turbulence or a vortex to enhance stone dust or debris removal via directed flow using targeted fluid exit conduits. An apparatus (100) includes a steerable access sheath (105) having a proximal end (110) and a distal end (115), a tip (120) at the distal end, directed flow channels (170, 175) at the distal tip, and a suction conduit (155) positioned within a central lumen of the steerable access sheath (105) from the distal end (115) to the proximal end (110), the steerable access sheath (105) containing an outer lumen (165) surrounding the central lumen with one or more channels therethrough (170, 175), the steerable access sheath (105) may further include a radiopaque material at the distal end (115) or along a length of the steerable access sheath (105) to enable tracking with a remote fluoroscopic device.