Expandable fixation elements for subcutaneous electrodes
First Claim
1. An implantable lead, comprising:
- a lead body;
a cardiac electrode supported by the lead body, the cardiac electrode configured for subcutaneous non-intrathoracic placement within a patient; and
an expandable fixation element provided on the implantable lead, the expandable fixation element configured to expandably secure one or both of the cardiac electrode and the lead body in subcutaneous non-intrathoracic tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
Subcutaneous systems and leads may be fixed in tissue after placement by use of one or more expanding fixation elements. An expanding fixation element is provided on an implantable lead and configured to secure one or both of a subcutaneous electrode and the lead body within subcutaneous non-intrathoracic tissue. A delivery apparatus comprising a sheath may be included that is configured to introduce the lead to a desired subcutaneous non-intrathoracic location within the patient. A method of lead delivery typically involves introducing a sheath into a subcutaneous non-intrathoracic body location of a patient, providing a lead comprising a lead body and an electrode, and advancing the lead through the sheath and to the subcutaneous non-intrathoracic body location. The method further involves fixing the lead to subcutaneous non-intrathoracic tissue using an expanding fixation element and thereafter removing the sheath from the patient.
172 Citations
56 Claims
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1. An implantable lead, comprising:
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a lead body;
a cardiac electrode supported by the lead body, the cardiac electrode configured for subcutaneous non-intrathoracic placement within a patient; and
an expandable fixation element provided on the implantable lead, the expandable fixation element configured to expandably secure one or both of the cardiac electrode and the lead body in subcutaneous non-intrathoracic tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable lead system, comprising:
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a lead comprising a lead body and a cardiac electrode, the lead configured for subcutaneous non-intrathoracic placement within a patient;
an expandable fixation element provided on the lead, the expandable fixation element configured to expandably secure one or both of the cardiac electrode and the lead body in subcutaneous non-intrathoracic tissue; and
a delivery apparatus configured to introduce the lead to a desired subcutaneous non-intrathoracic location within the patient. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of lead stabilization, comprising:
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providing a lead comprising a lead body, a cardiac electrode, and an expandable fixation element; and
expandably securing one or both of the lead body and the cardiac electrode to subcutaneous non-intrathoracic tissue at a fixation site using the expandable fixation element. - View Dependent Claims (32, 33, 34, 35)
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36. An implantable lead, comprising:
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a lead body;
a cardiac electrode supported by the lead body, the cardiac electrode configured for subcutaneous non-intrathoracic placement in a patient; and
means for expandably fixing one or both of the lead body and cardiac electrode within subcutaneous non-intrathoracic tissue. - View Dependent Claims (37, 38, 39, 40)
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41. A method of lead delivery, comprising:
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introducing a sheath into a subcutaneous non-intrathoracic body location of a patient;
providing a lead comprising a lead body and a cardiac electrode;
advancing the lead through the sheath and to the subcutaneous non-intrathoracic body location;
expandably fixing the lead within subcutaneous non-intrathoracic tissue; and
removing the sheath from the patient. - View Dependent Claims (42, 43, 44, 45, 46)
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47. An implantable lead, comprising:
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a lead body;
a cardiac electrode supported by the lead body, the cardiac electrode configured for subcutaneous non-intrathoracic placement within a patient; and
an expandable portion provided on the implantable lead, the expandable portion configured to provide pores that promote tissue ingrowth for chronic fixation. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification