Aspiration catheter, systems, and methods thereof
AssigneeNeuravi Limited
InventorsBrendan Casey, Karl Keating, Ronald Kelly, David Vale
Life of this patent
Estimating the term…
Abstract
A catheter including a distal tip section disposed on or adjacent the distal end of the catheter, the distal tip section being invertible about a transition between a catheter body and the distal tip section between a first configuration and a second configuration. Retracting the distal tip section causes the distal tip section to invert about the transition from the first to the second configuration, the second configuration comprising an expansile tip with an open funnel-like distal mouth comprising a larger diameter than a diameter of the transition.
Claims20
An aspiration catheter, comprising:
- a distal tip section comprising a proximal portion and a distal portion, the distal tip section being disposed on or adjacent a distal end of the aspiration catheter, and being invertible about a transition between a catheter body of the aspiration catheter and the distal tip section between a first configuration and a second configuration, the transition located at and affixed to the distal end of the aspiration catheter;
- the aspiration catheter being configured so that retracting the distal tip section causes the distal tip section to invert about the transition from the first configuration to the second configuration, and
- the second configuration comprising an expansile tip with an open funnel-like distal mouth comprising a larger diameter than a diameter of the transition,
- wherein in the first configuration, the proximal portion extends proximal of the distal section and the distal end of the aspiration catheter,
- wherein in the second configuration, the proximal portion extends distal of the distal section and the distal end of the aspiration catheter,
- wherein in the second configuration, the proximal portion is approximate the clot and the open funnel-like distal mouth faces a clot, and
- wherein the aspiration catheter comprises a shoulder region proximal of the transition, the shoulder region having a variable thickness along its length.
A method, comprising:
- translating an aspiration catheter comprising a distal tip section at a distal end at least partially distal of a sheath or delivery catheter, thereby moving the distal tip section of the aspiration catheter from a collapsed configuration to a first expanded configuration;
- and
- retracting the distal tip section causing the distal tip section to invert about a transition between the distal tip section and a catheter body of the aspiration catheter to the second expanded configuration, the second expanded configuration comprising an expansile tip with an open funnel-like distal mouth comprising a larger diameter than a diameter of the transition,
- wherein the distal tip section comprises a distal portion and a proximal portion,
- wherein in the first configuration, the proximal portion extends proximal of the distal section and the distal end of the aspiration catheter,
- wherein in the second configuration, the proximal portion extends distal of the distal section and the distal end of the catheter,
- wherein in the second configuration, the proximal portion is approximate the clot and the open funnel-like distal mouth faces a clot,
- wherein the transition is located at and affixed to the distal end of the aspiration catheter, and
- wherein the aspiration catheter comprises a shoulder region proximal of the transition, the shoulder region having a variable thickness along its length.
Dependencies are inferred from the claim text.