Therapeutic treatment device with inverted braided vessel occluder
AssigneeTriSalus Life Sciences, Inc.
InventorsBryan Pinchuk, James E. Chomas, David Benjamin Jaroch
Life of this patent
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Abstract
An endovascular treatment device for use in a vessel during a therapy procedure includes a catheter and a vessel occluder coupled to the catheter. The occluder includes a construction of elastic filaments that are fixed to the outer surface of the catheter. The filaments extend radially and distally outward from their proximal ends and then invert and are fixed back at the catheter proximal of the distal end of the catheter. The occluder can be elastically deformed to fit vessels of various sizes. The catheter includes a lumen through which a therapeutic agent is delivered beyond the occluder.
Claims33
An endovascular therapeutic device for delivery of a therapeutic agent within a vessel of a human patient during an intravascular procedure, the vessel having a vessel wall, comprising:
- a) a flexible catheter sized for introduction into the vessel, the flexible catheter having a proximal end and a distal end, an outer surface, a lumen extending between the proximal and distal ends and an opening at a distal orifice;
- and
- b) a filter valve mounted on the outer surface of the flexible catheter adjacent the distal end of the flexible catheter, the filter valve comprising:
- i) a filamentary construct comprising a plurality of elastic filamentary strands, each of the elastic filamentary strands having a proximal portion, a central portion, and a distal portion, the proximal portions of the plurality of elastic filamentary strands longitudinally fixed to the outer surface of the catheter at a first location proximal of the orifice, the central portions of the plurality of elastic filamentary strands extending from the proximal portion distally toward the orifice and having shape memory to extend radially outward from the outer surface, and the distal portions of the plurality of elastic filamentary strands inverting proximally to the outer surface of the catheter, the distal portions of the plurality of elastic filamentary strands longitudinally fixed to the outer surface of the catheter, and
- ii) a polymeric material coating a proximal portion of the filamentary construct across the plurality of elastic filamentary strands, the polymeric material forming a barrier to passage of the therapeutic agent, and wherein a distal portion of the filamentary construct is uncoated.
An endovascular therapeutic device for delivery of a therapeutic agent within a vessel of a human patient during an intravascular procedure, the vessel having a vessel wall, comprising:
- a) a flexible catheter sized for introduction into the vessel, the flexible catheter having a proximal end and a distal end, an outer surface, a lumen extending between the proximal and distal ends and an opening at a distal orifice;
- and
- b) a braided construct comprising a plurality of elastic filamentary strands mounted on the outer surface of the flexible catheter, each of the plurality of elastic filamentary strands having a proximal portion, a central portion, and a distal portion, the proximal portions of the plurality of elastic filamentary strands longitudinally fixed to the outer surface of the catheter at a first location proximal of the orifice, the central portions of the plurality of elastic filamentary strands extending from the proximal portion distally toward the orifice and having shape memory to extend radially outward from the outer surface, and the distal portions of the plurality of elastic filamentary strands inverting proximally to the outer surface of the catheter, the distal portions of the plurality of elastic filamentary strands longitudinally fixed relative to the outer surface of the catheter, and
- a proximal portion of the braided construct coated in a polymer coating that functions as a barrier to passage of the therapeutic agent and a distal portion of the braided construct is uncoated.
Dependencies are inferred from the claim text.