THROMBUS MANAGEMENT DEVICE
First Claim
1. An expandable tip assembly configured to address an occlusive thrombus within a blood vessel without distal embolic protection, comprising:
- an elongate member;
an expandable and reconstrainable scaffold coupled to the distal end of the elongate member, the scaffold being adapted to radially self-expand from a non-expanded configuration to an expanded configuration and to transition from the expanded configuration to the non-expanded configuration upon unsheathing and re-sheathing of the scaffold;
wherein the scaffold comprises a laser-cut tube;
wherein the scaffold is coupled to the distal end of the elongate member by a plurality of tether lines;
wherein the scaffold comprises an open distal end without a distal embolic protection member or device;
wherein a proximal end of the scaffold comprises a scooped-out section configured to facilitate re-sheathing of the scaffold;
wherein the scaffold comprises a plurality of open cells defined by struts and connected by bridges;
wherein each strut has two ends, with each end connected to one of the bridges; and
wherein the open cells are sized to promote at least one of vessel reperfusion or thrombus removal.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems, methods, and devices for the treatment of acute ischemic stroke that provide immediate blood flow restoration to a vessel occluded by a clot and, after reestablishing blood flow, address the clot itself. Immediate blood flow restoration advantageously can facilitate natural lysis of the clot and also can reduce or obviate the concern for distal embolization due to fragmentation of the clot. Several embodiments of the invention provide for progressive, or modular, treatment based upon the nature of the clot. For example, the progressive treatment can include immediate restoration of blood flow, in-situ clot management, and/or clot removal depending on the particular circumstances of the treatment. The in-situ clot management can include, for example, lysis, maceration, and/or removal.
57 Citations
22 Claims
-
1. An expandable tip assembly configured to address an occlusive thrombus within a blood vessel without distal embolic protection, comprising:
-
an elongate member; an expandable and reconstrainable scaffold coupled to the distal end of the elongate member, the scaffold being adapted to radially self-expand from a non-expanded configuration to an expanded configuration and to transition from the expanded configuration to the non-expanded configuration upon unsheathing and re-sheathing of the scaffold; wherein the scaffold comprises a laser-cut tube; wherein the scaffold is coupled to the distal end of the elongate member by a plurality of tether lines; wherein the scaffold comprises an open distal end without a distal embolic protection member or device; wherein a proximal end of the scaffold comprises a scooped-out section configured to facilitate re-sheathing of the scaffold; wherein the scaffold comprises a plurality of open cells defined by struts and connected by bridges; wherein each strut has two ends, with each end connected to one of the bridges; and wherein the open cells are sized to promote at least one of vessel reperfusion or thrombus removal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification