Subcutaneous electrode with improved contact shape for transthoracic conduction
First Claim
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1. An implantable cardiac stimulus lead electrode assembly for use with an implantable cardiac stimulus device, the assembly comprising:
- an elongated lead with a proximal portion and a distal portion;
a cardiac stimulus electrode coupled to the distal portion of the lead; and
a tubular appendage disposed on the distal portion of the lead, the tubular appendage configured for engagement with a lead insertion tool;
wherein;
the lead includes a backing layer;
the appendage includes a portion of the backing layer formed into a tubular configuration; and
the tubular appendage includes a single sheet of material that includes at least a portion that is placed in a rolled configuration to form the tubular appendage.
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Abstract
Electrical cardiac therapy devices including electrode assemblies having openings for receiving an electrode insertion tool, and methods of inserting such electrode assemblies. The opening(s) are defined on the electrode assemblies to allow an insertion tool to be coupled to the electrode assembly and then used to push the electrode assembly into place.
174 Citations
17 Claims
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1. An implantable cardiac stimulus lead electrode assembly for use with an implantable cardiac stimulus device, the assembly comprising:
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an elongated lead with a proximal portion and a distal portion; a cardiac stimulus electrode coupled to the distal portion of the lead; and a tubular appendage disposed on the distal portion of the lead, the tubular appendage configured for engagement with a lead insertion tool; wherein; the lead includes a backing layer; the appendage includes a portion of the backing layer formed into a tubular configuration; and the tubular appendage includes a single sheet of material that includes at least a portion that is placed in a rolled configuration to form the tubular appendage. - View Dependent Claims (2, 3)
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4. An implantable cardiac stimulus lead electrode assembly for use with an implantable cardiac stimulus device, the assembly comprising:
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an elongated lead with a proximal portion and a distal portion; a cardiac stimulus electrode coupled to the distal portion of the lead; and a tubular appendage disposed on the distal portion of the lead, the tubular appendage configured for engagement with a lead insertion tool; wherein; the lead includes a backing layer; the appendage includes a portion of the backing layer formed into a tubular configuration; the tubular appendage includes a substantially rectangular sheet; the sheet is rolled over and two substantially parallel sides of the sheet are placed in close proximity to one another to form the tubular appendage; and the tubular appendage is stitched to the lead.
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5. An implantable cardiac stimulus lead electrode assembly for use with an implantable cardiac stimulus device, the assembly comprising:
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an elongated lead with a proximal portion and a distal portion; a cardiac stimulus electrode coupled to the distal portion of the lead; and a tubular appendage disposed on the distal portion of the lead, the tubular appendage configured for engagement with a lead insertion tool; wherein; the lead includes a backing layer; the appendage includes a portion of the backing layer formed into a tubular configuration; the tubular appendage includes first, second and third sheets of material; and the first sheet is attached to the lead, and the second and third sheets are attached to the first sheet to form the tubular appendage. - View Dependent Claims (6, 7)
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8. An implantable cardiac stimulus lead electrode kit for use with an implantable cardiac stimulus device, the kit comprising:
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an elongated lead with a proximal portion and a distal portion, the lead including a cardiac stimulus electrode coupled to the distal portion of the lead, and a tubular appendage disposed on the distal portion of the lead; and a lead insertion tool adapted to mate with the tubular appendage for pushing insertion of the elongated lead subcutaneously within a patient; wherein; the cardiac stimulus electrode includes a backing layer; the appendage includes a portion of the backing layer formed into a tubular configuration; and the tubular appendage includes a single sheet of material that includes at least a portion that is placed in a rolled configuration to form the tubular appendage. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An implantable cardiac stimulus lead electrode kit for use with an implantable cardiac stimulus device, the kit comprising:
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an elongated lead with a proximal portion and a distal portion, the lead including a cardiac stimulus electrode coupled to the distal portion of the lead, and a tubular appendage disposed on the distal portion of the lead; and a lead insertion tool adapted to mate with the tubular appendage for pushing insertion of the elongated lead subcutaneously within a patient; wherein; the cardiac stimulus electrode includes a backing layer; the appendage includes a portion of the backing layer formed into a tubular configuration; and the tubular appendage includes first, second and third sheets of material; and the first sheet is attached to the lead, and the second and third sheets are attached to the first sheet to form the tubular appendage.
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15. An implantable cardioverter defibrillator comprising:
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a housing; an electrical circuit located within the housing; an elongated lead with a proximal portion and a distal portion, the proximal portion of the lead adapted to be coupled to the housing for electrical communication with the electrical circuit; an electrode coupled to the distal portion of the lead; and a tubular appendage disposed on the distal portion of the lead, the tubular appendage configured for engagement with a lead insertion tool; wherein; the lead is a subcutaneous lead; the electrode is a subcutaneous electrode; and the tubular appendage includes a single sheet of material that includes at least a portion that is placed in a rolled configuration to form the tubular appendage. - View Dependent Claims (16, 17)
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Specification