Fixed dimensional and bi-directional steerable catheter control handle

摘要

An apparatus for imparting a tensile force to deflect a distal portion of a catheter while maintaining its exterior dimensions may include a handle grip including a cross-section of generally predetermined exterior dimensions, and a longitudinal axis. A flexible elongate member may include proximal and distal end portions, with the proximal end portion being coupled to the handle grip. An adjustment knob may include a cross-section of generally predetermined exterior dimensions, and is rotatably coupled to the handle grip around the longitudinal axis. An elongate deflection member may be operably coupled to the adjustment knob and to the distal end portion of the elongate member. Rotation of the adjustment knob may impart a tensile force to the deflection member thereby causing the distal end portion of the elongate member to deflect from a prior configuration while maintaining the generally predetermined exterior dimensions of the handle grip and the adjustment knob.

主权项

1. An apparatus for imparting a tensile force to deflect a distal portion of a catheter while maintaining its exterior dimensions, the apparatus comprising:
a handle grip including a cross-section of generally predetermined exterior dimensions, and a longitudinal axis; a flexible elongate member including proximal and distal end portions, with the proximal end portion being coupled to the handle grip; a lumen extending through said flexible elongate member terminating at an external opening at the distal end portion of said flexible elongate member; an adjustment knob including a cross-section of generally predetermined exterior dimensions, and being rotatably coupled to the handle grip around the longitudinal axis of the handle grip; and at least one elongate deflection member operably coupled to the adjustment knob and to the distal end portion of the elongate member, wherein rotation of the adjustment knob imparts a tensile force to the elongate deflection member by movement of an actuation member coupled to the elongate deflection member relative to the adjustment knob thereby causing the distal end portion of the elongate member to deflect from a prior, substantially straight configuration while maintaining the generally predetermined exterior dimensions of the handle grip and the adjustment knob.