Abstract:
Medical devices as well as methods for making and using medical devices are disclosed. An example medical device may include a steerable crossing catheter system. The steerable crossing catheter system may include an elongate catheter shaft having a proximal end region, a steerable distal end region, and a lumen extending therethrough. A core may be disposed within the lumen. The core may have a distal end. A penetrating member may be coupled to the distal end. A sensing assembly may be disposed adjacent to the distal end. The sensing assembly may be configured to estimate the location of the core within a body lumen.
Abstract:
Medical devices as well as methods for making and using medical devices are disclosed. An example medical device may include a steerable crossing catheter system. The steerable crossing catheter system may include an elongate catheter shaft having a proximal end region, a steerable distal end region, and a lumen extending therethrough. A core may be disposed within the lumen. The core may have a distal end. A penetrating member may be coupled to the distal end. A sensing assembly may be disposed adjacent to the distal end. The sensing assembly may be configured to estimate the location of the core within a body lumen.
Abstract:
A cryotherapy balloon catheter includes a compliant cryotherapy balloon comprising a distal balloon section dimensioned for placement within a renal artery and a proximal balloon section dimensioned to abut against an ostium of the renal artery and extend into at least a portion of the abdominal aorta. The compliant balloon has a diameter that varies non-uniformly along a length of the compliant balloon, such that a diameter at the proximal balloon section is larger than a diameter of the distal balloon section. The cryotherapy balloon catheter may be configured to deliver cryogenic therapy to at least the ostium of the renal artery sufficient to irreversibly terminate renal sympathetic nerve activity, such as by causing neurotmesis of renal nerve fibers and ganglia at the ostium of the renal artery.