Leadless cardiac stimulation systems
First Claim
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1. A method of implanting a leadless pacing device, comprising:
- advancing a leadless pacing device into a chamber of a heart within a delivery catheter, the leadless pacing device including;
a main body; and
a plurality of tines coupled to the main body, wherein each of the plurality of tines is configured to self-bias from a first configuration to a second configuration,wherein the main body includes a battery, a first electrode positioned at a distal end of the main body, and a second electrode positioned proximal of the first electrode, the first and second electrodes configured to cooperate to deliver electrical stimulation to the heart; and
anchoring the leadless pacing device to a wall of the heart with the plurality of tines as the plurality of tines move to the second configuration, wherein each of the plurality of tines includes a portion extending distal of the first electrode in the second configuration and a distal tip that extends proximal of the first electrode in the second configuration.
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Abstract
Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrode assemblies that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Also disclosed are various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
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Citations
20 Claims
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1. A method of implanting a leadless pacing device, comprising:
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advancing a leadless pacing device into a chamber of a heart within a delivery catheter, the leadless pacing device including; a main body; and a plurality of tines coupled to the main body, wherein each of the plurality of tines is configured to self-bias from a first configuration to a second configuration, wherein the main body includes a battery, a first electrode positioned at a distal end of the main body, and a second electrode positioned proximal of the first electrode, the first and second electrodes configured to cooperate to deliver electrical stimulation to the heart; and anchoring the leadless pacing device to a wall of the heart with the plurality of tines as the plurality of tines move to the second configuration, wherein each of the plurality of tines includes a portion extending distal of the first electrode in the second configuration and a distal tip that extends proximal of the first electrode in the second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of implanting a leadless pacing device, comprising:
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advancing a leadless pacing device into a chamber of a heart within a delivery catheter with a plurality of tines of the leadless pacing device in a first configuration, the leadless pacing device including; a main body including a battery, a first electrode positioned at a distal end of the main body, and a second electrode positioned proximal of the first electrode, the first and second electrodes configured to cooperate to deliver electrical stimulation to the heart; and the plurality of tines coupled to the main body, wherein each of the plurality of tines is configured to self-bias from the first configuration to a second configuration; deploying the leadless pacing device from the delivery catheter with the first electrode positioned against a wall of the heart; and anchoring the leadless pacing device to the wall of the heart with the plurality of tines by moving the plurality of tines from the first configuration to the second configuration, wherein in the second configuration each of the plurality of tines includes a curled portion extending distal of the first electrode and a distal tip that extends proximal of the first electrode. - View Dependent Claims (12, 13, 14, 15)
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16. A method of implanting a leadless pacing device, comprising:
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advancing a leadless pacing device into a chamber of a heart within a delivery catheter with a plurality of tines of the leadless pacing device in a first configuration, the leadless pacing device including; a main body including a battery, a first electrode positioned at a distal end of the main body, and a second electrode positioned proximal of the first electrode, the first and second electrodes configured to cooperate to deliver electrical stimulation to the heart; and the plurality of tines coupled to the main body, wherein each of the plurality of tines is configured to self-bias from the first configuration to a second configuration; positioning the first electrode against a wall of the heart; and passing the plurality of tines through tissue of the wall of the heart as the plurality of tines transition from the first configuration to the second configuration, wherein in the second configuration each of the plurality of tines includes a portion extending distal of the first electrode and a distal tip that extends proximal of the first electrode. - View Dependent Claims (17, 18, 19, 20)
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Specification