Endovenous device for dispersing a dilating agent
First Claim
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1. A medical electrical lead device, comprising:
- an elongated flexible lead body having a distal end portion and a proximal end portion, the lead body being adapted for insertion through a superior vena cava of a patient and passage through a coronary sinus of a patient to position the distal end within a cardiac vein adjacent to a left ventricle of a patient;
an electrode coupled to the distal end of the lead body;
means coupled to the distal end of the lead body for anchoring the electrode within the cardiac vein; and
means formed at the distal end portion of the lead body proximal to the electrode for dispersing a vasodilating agent within a vessel during insertion and passage of the lead body to position the distal end within the cardiac vein, wherein the vasodilating agent is delivered along the lead body to the means for dispersing from the proximal end, and wherein the means for dispersing includes a plurality of apertures formed in the lead body to disperse the vasodilating agent.
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Abstract
Apparatus and methods are disclosed for inserting electrical leads within a heart. A method is provided for positioning a medical electrical lead in a cardiac vein. The method comprises inserting a lead within a coronary sinus, dispersing at least one vasodilating agent to dilate at least one cardiac vein, and inserting the lead into a dilated cardiac vein.
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Citations
14 Claims
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1. A medical electrical lead device, comprising:
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an elongated flexible lead body having a distal end portion and a proximal end portion, the lead body being adapted for insertion through a superior vena cava of a patient and passage through a coronary sinus of a patient to position the distal end within a cardiac vein adjacent to a left ventricle of a patient; an electrode coupled to the distal end of the lead body; means coupled to the distal end of the lead body for anchoring the electrode within the cardiac vein; and means formed at the distal end portion of the lead body proximal to the electrode for dispersing a vasodilating agent within a vessel during insertion and passage of the lead body to position the distal end within the cardiac vein, wherein the vasodilating agent is delivered along the lead body to the means for dispersing from the proximal end, and wherein the means for dispersing includes a plurality of apertures formed in the lead body to disperse the vasodilating agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medical catheter device, comprising:
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a flexible tubular body having a distal end and a proximal end; a first lumen disposed within the flexible tubular body capable of transporting an electrical lead through the first lumen and out the distal end of the flexible tubular body to an implant site within a cardiac vein adjacent to a left ventricle of a patient; means for dispersing a vasodilating agent within a vessel during insertion and passage of the tubular body to position the distal end within the cardiac vein, wherein the means for dispersing a vasodilating agent is attached near the distal end of the tubular body and comprises a sponge-like material, wherein the vasodilating agent is selectively delivered from the proximal end to the means for dispersing; and a fluid source containing the vasodilating agent, wherein the source is coupled to provide the vasodilating agent to the dispersing means. - View Dependent Claims (13)
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14. A medical catheter device, comprising:
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a flexible tubular body having a distal end and a proximal end; a first lumen disposed within the flexible tubular body capable of transporting an electrical lead through the first lumen and out the distal end of the flexible tubular body to an implant site within a cardiac vein adjacent to a left ventricle of a patient; means for dispersing a vasodilating agent within a vessel during insertion and passage of the tubular body to position the distal end within the cardiac vein, wherein the means for dispersing a vasodilating agent is attached near the distal end of the tubular body and the vasodilating agent is selectively delivered from the proximal end to the means for dispersing; a second lumen for transporting the vasodilating agent from the proximal end to the distal end of the tubular body; and a fluid source containing the vasodilating agent, wherein the source is coupled to provide the vasodilating agent to the second lumen.
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Specification