Device For Delivery Of Medical Devices To A Cardiac Valve
AssigneeContego AB
InventorErik Krahbichler
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Abstract
A catheter device (1) is disclosed for transvascular delivery of a medical device to a cardiac valve region of a patient. The catheter device comprises an elongate sheath (2) with a lumen and a distal end (3) for positioning at a heart valve (6), and a second channel (7) that extends parallel to, or in, said elongate sheath, an expandable embolic protection unit (8), such as a filter, wherein at least a portion of the expandable embolic protection unit is arranged to extend from an orifice of the second channel, wherein the embolic protection unit is non-tubular, extending substantially planar in the expanded state for covering ostia of the side branch vessels in the aortic arch.
Claims21
A catheter device for transvascular delivery of a medical device to a cardiac valve region of a patient, said catheter device comprising
- an elongate sheath with a lumen and a distal end for positioning at a heart valve, and
- a second channel that extends parallel to, or in, said elongate sheath,
- an expandable embolic protection unit, such as a filter, wherein at least a portion of said expandable embolic protection unit is arranged to extend from an orifice of said second channel, wherein said embolic protection unit is non-tubular, extending substantially planar in said expanded state for covering ostia of the side branch vessels in the aortic arch.
A system for transvascularly delivering a medical device to a cardiac valve of a patient, said system comprising
- a catheter comprising an elongate sheath with a lumen in a relaxed state for minimally invasively introducing into said vascular system;
- said sheath having a distal end of said elongate sheath for navigating through said vascular system to said cardiac valve;
- an expandable embolic protection unit, such as a filter, wherein at least a portion of said expandable embolic protection unit is arranged to extend from an orifice of said second channel, wherein said embolic protection unit is non-tubular, extending substantially planar in said expanded state for covering ostia of the side branch vessels in the aortic arch,
- a plurality of radially expandable units at least temporarily provideable at said distal end of said elongate sheath;
- wherein said radially expandable units are arranged for expanding to temporarily position said distal end in relation to said cardiac valve;
- and locking members of said catheter which, when released, maintain said sheath in a structurally locked state to maintain its spatial position relative said cardiac valve;
- whereby said expandable units are arranged to allow for increased blood flow around said sheath when returned to a non expanded configuration while said locked state is maintained for delivering a medical device through the lumen of said locked elongate sheath to said heart valve;
- and wherein said elongate sheath is arranged to return to said relaxed state when said locking members are released for withdrawing said elongate sheath in said relaxed state from the vasculature of said patient.
A method of transvascularly delivering a medical device to a cardiac valve of a patient comprising:
- introducing a catheter comprising an elongate sheath with a lumen in a relaxed state into said vascular system;
- navigating a distal end of said elongate sheath through said vascular system to said cardiac valve;
- expanding an embolic protection unit from a second channel in said sheath to cover ostia of the side branch vessels in the aortic arch and to stabilize a distal end of said sheath at the cardiac valve,
- delivering a medical device through the lumen of said locked elongate sheath to said heart valve while said embolic protection unit covers said ostia.
Dependencies are inferred from the claim text.