Subcutaneous vascular access assemblies and related devices and methods
AssigneeMerit Medical Systems, Inc.
InventorsMark Garcia, John Hall, Wayne Mower
Life of this patent
Estimating the term…
Abstract
Vascular access devices, assemblies, kits, and related methods are disclosed. A vascular access assembly may include a first tubular conduit, a second tubular conduit, and an expandable stent graft that is coupled adjacent to a peripheral end of the second tubular conduit. When implanted into the patient, vascular access assemblies may form a flow path that extends from an artery or an arteriovenous graft to a heart of a patient. The vascular access assembly, when implanted and assembled, may be a fully subcutaneous surgical implant.
Claims20
A vascular access assembly comprising:
- a first tubular conduit;
- a second tubular conduit;
- an expandable stent graft that is coupled to the second tubular conduit adjacent a peripheral end of the second tubular conduit, wherein the expandable stent graft includes a first branch configured to couple to an artery, vein or arteriovenous graft of a patient such that the first branch permits blood flow through the artery, vein, or arteriovenous graft, wherein the expandable stent graft includes a second branch coupled to the second tubular conduit such that the artery, the vein, or the arteriovenous graft is in fluid communication with the second tubular conduit;
- a restraint comprising a pull string coupled to filaments surrounding the expandable stent graft in a compressed state;
- wherein the first tubular conduit is configured to couple to a central end of the second tubular conduit to form a flow path that extends from the artery, the vein, or the arteriovenous graft to a heart of the patient.
A method for implanting a vascular access assembly into a patient, the method comprising:
- inserting a central end of a first tubular conduit into a patient such that the central end of the first tubular conduit is positioned within a right atrium of a heart of the patient;
- tunneling a peripheral end of the first tubular conduit through flesh of the patient to an incision adjacent a shoulder of the patient;
- inserting a second tubular conduit into the patient such that the second tubular conduit extends from the incision adjacent the shoulder of the patient to an incision in the arm of the patient;
- deploying a stent graft within an artery or an arteriovenous graft in the arm of the patient, wherein the stent graft is coupled to and disposed adjacent a peripheral end of the second tubular conduit;
- pulling a pull string to remove a restraint from around the stent graft, wherein the stent graft transitions from a compressed state to an expanded state;
- sealing an insertion site of the artery or the arteriovenous graft with a collar disposed around a periphery of the stent graft;
- and
- coupling the first tubular conduit to the second tubular conduit.
Dependencies are inferred from the claim text.