Five degree of freedom ultrasound catheter and catheter control handle

摘要

Catheter ultrasound systems including a sheath, a handle, a sheath lumen, and an ultrasound catheter disposed within the lumen of the sheath with ultrasound elements capable of visualizing anatomical regions. The handle allowing the ultrasound catheter to rotate with respect to the sheath using a rotation adjustment knob within the handle or alternatively an separate manipulation handle attached to the proximal end of the ultrasound catheter. The sheath, ultrasound catheter, or both may also include one or more electrodes or other location sensor for both orienting the ultrasound element as well as for diagnostic purposes.

主权项

1. A catheter system comprising:
a guiding catheter, the guiding catheter comprising a flexible body having a lumen therethrough and a deflection wire; the flexible body having a distal end portion and a proximal end portion, with the proximal end portion being coupled to a handle and the distal end being operably connected to the deflection wire; the handle comprising a first actuator, a second actuator, and a handle grip; the handle having a continuous lumen extending through the first actuator, the second actuator, and the handle grip; the handle grip including a slide, the slide being operably coupled to the deflection wire; the handle grip further including a rotation assembly being operably connected to the second actuator; an instrument catheter comprising an instrument element and an elongate body having proximal and distal end portions; the instrument element being attached to the distal end portion; the instrument catheter being disposed within the lumens of the guiding catheter and handle; the proximal end portion of the instrument catheter extending through the proximal end of the handle; wherein rotation of the first actuator engages the slide causing the slide to displace axially imparting a tensile force to the deflection wire thereby causing the distal end portion of the guiding catheter and the portion of the instrument catheter contained therein to deflect from a prior configuration, and rotation of the second actuator causes the instrument catheter to rotate within the lumens of the guiding catheter and handle without substantially changing the deflection of the guiding catheter.