Passive fixation mechanism for epicardial sensing and stimulation lead placed through pericardial access
First Claim
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1. An implantable lead system, comprising:
- an elongated lead body defining a longitudinal axis and comprising an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body;
an electrode mounted on the distal end of the lead body, the electrode being coupled to the electrical conductor;
one or more passive fixation mesh sections coupled to the lead that encourages tissue over growth and is adapted to transition between a collapsed state wherein it assumes a non-planar form allowing it to at least partially wrapped around the lead body and an extended state wherein it projects outward from the lead body; and
an edge formed of silicone and secured to the mesh sections only around a perimeter of the mesh sections.
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Abstract
An implantable lead having an elongated lead body that includes an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body is disclosed. The lead further includes an electrode formed at the distal end of the lead body, the electrode being coupled to the electrical conductor and one or more passive fixation mesh sections coupled to the distal end of the lead body that promotes tissue over growth.
127 Citations
30 Claims
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1. An implantable lead system, comprising:
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an elongated lead body defining a longitudinal axis and comprising an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body; an electrode mounted on the distal end of the lead body, the electrode being coupled to the electrical conductor; one or more passive fixation mesh sections coupled to the lead that encourages tissue over growth and is adapted to transition between a collapsed state wherein it assumes a non-planar form allowing it to at least partially wrapped around the lead body and an extended state wherein it projects outward from the lead body; and an edge formed of silicone and secured to the mesh sections only around a perimeter of the mesh sections. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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6. An implantable lead system, comprising:
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an elongated lead body defining a longitudinal axis and comprising an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body; an electrode mounted on the distal end of the lead body, the electrode being coupled to the electrical conductor; a first passive fixation mesh section coupled to a first side of the longitudinal axis of the lead body and a second passive fixation mesh section separate from the first passive fixation mesh section and coupled to an opposing side of the longitudinal axis of the lead body from the first mesh section, each of the mesh sections adapted to transition between a collapsed state wherein it is at least partially wrapped around the lead body and an extended state wherein it projects outward from the lead body; and a first fluoroscopic marker having a first shape disposed on the first passive fixation mesh section and a second fluoroscopic marker having a second shape different from the first shape and disposed on the second passive fixation mesh section.
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16. An implantable lead system, comprising:
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an elongated lead body defining a longitudinal axis and comprising an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body; an electrode mounted on the distal end of the lead body, the electrode being coupled to the electrical conductor; one or more passive fixation mesh sections coupled to the lead body that encourages tissue over growth and is adapted to transition between a collapsed state wherein it assumes a non-planar form allowing it to at least partially wrapped around the lead body and an extended state wherein it projects outward from the lead body; an edge formed of silicone and secured to the mesh sections only around a perimeter of the mesh sections; and an introducer adapted to receive the lead body when the one or more passive fixation mesh sections are in a collapsed state and to introduce the elongated lead body into a patient'"'"'s pericardial sac. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An implantable lead system, comprising:
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an elongated lead body defining a longitudinal axis, the lead body including an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body; an electrode mounted on the distal end of the lead body, the electrode being coupled to the electrical conductor; a first passive fixation mesh section coupled to the lead body; a second passive fixation mesh section, separate from the first passive fixation mesh section, and coupled to an opposing side of the longitudinal axis of the lead body from the first passive mesh section; and an edge around a perimeter of at least one of the mesh sections that is secured to the mesh sections only at a perimeter of the mesh section. - View Dependent Claims (27, 28, 29, 30)
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Specification