Patent ID: 9125683
Filing Date: 2015-09-08
Classification: A61B,A61M

Abstract:
1. A catheter apparatus for insertion into vasculature of a patient and to a target area in the vasculature, comprising: a hollow inner shaft with a distal end and a proximal end; a removable non-occluding self-expandable scaffold coupled to the distal end of the inner shaft and disposed at the distal end of the inner shaft, a portion of the distal end of the inner shaft being disposed at least in part inside the self-expandable scaffold; and a hollow outer shaft with a distal end and a proximal end, the outer shaft being slidable over the inner shaft and the scaffold such that the scaffold is in a non-expanded state when the outer shaft is disposed around the scaffold, the outer shaft having a state where the distal end of the outer shaft remains near the target area without the inner shaft and the scaffold being disposed within the outer shaft, wherein the inner shaft and the scaffold are configured to be removable through the proximal end of the outer shaft while the distal end of the outer shaft remains near the target area, and wherein the outer shaft is configured for passing at least one medical device to the target area in the vasculature; and wherein the scaffold is configured to center the distal end of the inner shaft along a central longitudinal axis of the scaffold when the scaffold is expanded.