IMPLANTABLE NEUROSTIMULATOR FOR MODULATING CARDIOVASCULAR FUNCTION
First Claim
Patent Images
1. An implantable medical device for use in a living body, the device comprising:
- electronic circuitry;
an implantable capsule including a wall forming a chamber to house the electronic circuitry; and
a transmural fixation device configured to transmurally fix the implantable capsule to an internal structure of the body, the internal structure having a wall and a cavity, the wall including an exterior surface and an interior surface, the cavity defined by the interior surface, the transmural fixation device including;
a proximal end coupled to the implantable capsule;
a distal end including an anchoring device and configured to pierce the wall from the exterior surface to enter the cavity such that the anchoring device is deployed in the cavity against the interior surface; and
an elongate transmural body between the proximal end and the distal end.
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Abstract
An implantable medical device includes an implantable capsule housing a circuit that delivers neurostimulation to modulate one or more cardiovascular functions. To limit displacement after implantation, a fixation device is coupled to the implantable capsule to fix the miniature implantable medical device to a position in the body of a patient. In various embodiments, the fixation device include one or more of a suture loop, a cuff to wrap around a cylindrical structure such as a nerve of a vessel, and a transmural fixation device anchoring on the interior surface of a wall defining a cavity in the body.
67 Citations
20 Claims
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1. An implantable medical device for use in a living body, the device comprising:
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electronic circuitry; an implantable capsule including a wall forming a chamber to house the electronic circuitry; and a transmural fixation device configured to transmurally fix the implantable capsule to an internal structure of the body, the internal structure having a wall and a cavity, the wall including an exterior surface and an interior surface, the cavity defined by the interior surface, the transmural fixation device including; a proximal end coupled to the implantable capsule; a distal end including an anchoring device and configured to pierce the wall from the exterior surface to enter the cavity such that the anchoring device is deployed in the cavity against the interior surface; and an elongate transmural body between the proximal end and the distal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for making an implantable medical device, the method comprising:
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providing electronic circuitry; encapsulating the electronic circuitry in an implantable capsule; providing a transmural fixation device configured to transmurally fix the implantable capsule to an internal structure of the body, the internal structure having a wall and a cavity, the wall including an exterior surface and an interior surface, the cavity defined by the interior surface, the transmural fixation device including a proximal end, a distal end, and an elongate transmural body between the proximal end and the distal end, the distal end including an anchoring device and configured to pierce the wall from the exterior surface to enter the cavity such that the anchoring device is deployed in the cavity against the interior surface; and coupling the proximal end to the implantable capsule. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An implantable medical device for delivering neurostimulation to modulate a cardiovascular function in a body having an internal structure having a wall including an exterior surface and an interior surface defining a cavity, the device comprising:
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electronic circuitry adapted to deliver neurostimulation, the electronic circuitry including; a stimulation output circuit adapted to deliver the neurostimulation; a memory circuit storing a stimulation algorithm including stimulation parameters selected for modulating the cardiovascular function; and a stimulation controller adapted to control the delivery of the neurostimulation by executing the stimulation algorithm; an implantable capsule including a wall forming a chamber housing the electronic circuitry, the implantable capsule including an approximately cylindrical elongate body; and a transmural fixation device coupled to the implantable capsule, the transmural fixation device including; a proximal end coupled to the implantable capsule; a distal end including an anchoring device including a plurality of arms and configured to pierce the wall from the exterior surface with the arms in a restrained state, enter the cavity, and deploy in the cavity against the interior surface with the arms in an unrestrained state; and an elongate transmural body between the proximal end and the distal end. - View Dependent Claims (18, 19, 20)
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Specification