Method of implanting a medical device including a fixation element
First Claim
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1. A method comprising:
- introducing an implantable medical device into subcutaneous tissue below a scalp of a patient, the implantable medical device defining an outer surface and comprising a stimulation electrode extending at least partially around the outer surface, the implantable medical device being configured to deliver electrical stimulation therapy to the patient;
guiding the implantable medical device to a target tissue site within the subcutaneous tissue proximate to at least one of an occipital nerve or a trigeminal nerve of the patient, wherein the target tissue site is selected such that delivery of electrical stimulation therapy by the implantable medical device to the target tissue site results in delivery of electrical stimulation therapy to the at least one of the occipital nerve or the trigeminal nerve; and
actively deploying a fixation element attached to the implantable medical device, wherein the fixation element is actively deployable from a first shape to a second shape that is configured to engage with tissue at the target tissue site in order to resist substantial movement of the implantable medical device from the target tissue site, wherein the fixation element extends from the outer surface of the implantable medical device when the fixation element is in the second shape, and wherein the fixation element comprises wire formed from at least one of an elastic material or a shape memory material.
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Abstract
A system comprises an implantable medical device and an actively deployable clip attached to the implantable medical device that restricts movement of the implantable medical device once the clip is deployed within a body of a patient. In one embodiment, the implantable medical device is a lead and a clip that includes electrically conductive portion is an electrode of the lead. The implantable medical device may be implanted proximate to any suitable tissue site within the patient, and in one embodiment, the implantable medical device is implanted proximate to an occipital nerve or a trigeminal nerve of the patient.
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Citations
30 Claims
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1. A method comprising:
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introducing an implantable medical device into subcutaneous tissue below a scalp of a patient, the implantable medical device defining an outer surface and comprising a stimulation electrode extending at least partially around the outer surface, the implantable medical device being configured to deliver electrical stimulation therapy to the patient; guiding the implantable medical device to a target tissue site within the subcutaneous tissue proximate to at least one of an occipital nerve or a trigeminal nerve of the patient, wherein the target tissue site is selected such that delivery of electrical stimulation therapy by the implantable medical device to the target tissue site results in delivery of electrical stimulation therapy to the at least one of the occipital nerve or the trigeminal nerve; and actively deploying a fixation element attached to the implantable medical device, wherein the fixation element is actively deployable from a first shape to a second shape that is configured to engage with tissue at the target tissue site in order to resist substantial movement of the implantable medical device from the target tissue site, wherein the fixation element extends from the outer surface of the implantable medical device when the fixation element is in the second shape, and wherein the fixation element comprises wire formed from at least one of an elastic material or a shape memory material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method comprising:
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introducing an implantable medical device into a body of a patient, the implantable medical device defining an outer surface and comprising a stimulation electrode extending at least partially around the outer surface, the implantable medical device extending between a proximal end and a distal end, wherein the outer surface defines a longitudinal outer surface extending between the proximal end and the distal end, and wherein the implantable medical device is configured to deliver electrical stimulation therapy to the patient; guiding the implantable medical device to a subcutaneous tissue site below a scalp of the patient proximate to at least one of an occipital nerve or a trigeminal nerve within the body of the patient, wherein the subcutaneous tissue site is selected such that delivery of electrical stimulation therapy by the implantable medical device to the subcutaneous tissue site results in delivery of electrical stimulation therapy to the at least one of the occipital nerve or the trigeminal nerve; and actively deploying a fixation element coupled to the implantable medical device, the fixation element comprising an electrically conductive portion electrically coupled to an electrical conductor disposed within the implantable medical device and configured to deliver electrical stimulation from an electrical stimulation generator to the subcutaneous tissue site, wherein the fixation element is actively deployable from a first shape to a second shape that is configured to engage with tissue at the subcutaneous tissue site in order to resist substantial movement of the implantable medical device from subcutaneous tissue site, and wherein the fixation element is configured such that the fixation element does not protrude past the longitudinal outer surface when the fixation element is in the second shape, and wherein the fixation element extends from the outer surface of the implantable medical device when the fixation element is in the second shape. - View Dependent Claims (27, 28)
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29. A method comprising:
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introducing an implantable medical lead into subcutaneous tissue below a scalp of a patient, the implantable medical lead defining an outer surface and comprising a stimulation electrode extending at least partially around the outer surface, the implantable medical lead being configured to deliver electrical stimulation therapy to the patient; guiding the implantable medical lead to a target tissue site within the subcutaneous tissue proximate to at least one of an occipital nerve or a trigeminal nerve of the patient, wherein the target tissue site is selected such that delivery of electrical stimulation therapy by the implantable medical lead to the target tissue site results in delivery of electrical stimulation therapy to the at least one of the occipital nerve or the trigeminal nerve; and actively deploying a fixation element coupled to the lead, the fixation element comprising an electrically conductive portion electrically coupled to an electrical conductor disposed within the lead configured to at least one of deliver electrical stimulation to the target tissue site or sense a physiological parameter from the target tissue site, wherein the fixation element is actively deployable from a first shape to a second shape that is configured to engage with tissue at the target tissue site in order to resist substantial movement of the lead from the target tissue site, wherein the fixation element extends from the outer surface of the implantable medical lead when the fixation element is in the second shape, and wherein the fixation element comprises wire formed from at least one of an elastic material or a shape memory material. - View Dependent Claims (30)
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Specification