Implantable medical device for atrial deployment
First Claim
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1. A leadless cardiac pacemaker (LCP), the LCP comprising:
- a power source;
circuitry operatively coupled to the power source, the circuitry configured to pace a patient'"'"'s heart and/or sense electrical activity of the patient'"'"'s heart;
a housing at least partially enclosing the circuitry and configured to be positioned within an atrium of the patient'"'"'s heart;
an anode electrode operatively coupled to the circuitry;
a cathode electrode operatively coupled to the circuitry, the cathode electrode spaced from the anode electrode; and
an expandable anchoring member secured relative to the housing, the expandable anchoring member having a plurality of struts connected to a central hub at a first end and extend out to an open second end and having a collapsed configuration for delivery and an expanded configuration for securing the expandable anchoring member and the housing within the atrium of the patient'"'"'s heart, with the cathode electrode in engagement with an atrium wall of the patient'"'"'s heart; and
a mesh contacting two or more of the plurality of struts of the expandable anchoring member and extending from the first end toward the second end, wherein the mesh is configured to encourage endotheliazation over at least part of the expandable anchoring member.
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Abstract
An implantable medical device (IMD) may be deployed within a patient'"'"'s right atrium at a location near a right atrial appendage of the patient'"'"'s heart in order to pace the patient'"'"'s heart and/or to sense electrical activity within the patient'"'"'s heart. In some cases, an IMD may be implanted within the right atrial appendage. The IMD may include an expandable anchoring mechanism configured to secure the IMD in place.
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Citations
18 Claims
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1. A leadless cardiac pacemaker (LCP), the LCP comprising:
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a power source; circuitry operatively coupled to the power source, the circuitry configured to pace a patient'"'"'s heart and/or sense electrical activity of the patient'"'"'s heart; a housing at least partially enclosing the circuitry and configured to be positioned within an atrium of the patient'"'"'s heart; an anode electrode operatively coupled to the circuitry; a cathode electrode operatively coupled to the circuitry, the cathode electrode spaced from the anode electrode; and an expandable anchoring member secured relative to the housing, the expandable anchoring member having a plurality of struts connected to a central hub at a first end and extend out to an open second end and having a collapsed configuration for delivery and an expanded configuration for securing the expandable anchoring member and the housing within the atrium of the patient'"'"'s heart, with the cathode electrode in engagement with an atrium wall of the patient'"'"'s heart; and a mesh contacting two or more of the plurality of struts of the expandable anchoring member and extending from the first end toward the second end, wherein the mesh is configured to encourage endotheliazation over at least part of the expandable anchoring member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable medical device (IMD), comprising:
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a power source; circuitry operatively coupled to the power source, the circuitry configured to pace a patient'"'"'s heart and/or sense electrical activity of the patient'"'"'s heart; a housing at least partially enclosing the circuitry and configured to be positioned within an atrium of the patient'"'"'s heart; an anode electrode operatively coupled to the circuitry; a cathode electrode operatively coupled to the circuitry, the cathode electrode spaced from the anode electrode; an expandable anchoring member secured relative to the housing, the expandable anchoring member having a collapsed configuration for delivery and an expanded configuration for engaging an atrial wall of the patient'"'"'s heart to secure the housing within the atrium of the patient'"'"'s heart; wherein the expandable anchoring member extends from a first end to an open second end, wherein the open second end is configured to face the atrial wall, the expandable anchoring member further includes a plurality of struts connected to a central hub at the first end and extend out to the open second end; and a mesh contacting two or more of the plurality of struts of the expandable anchoring member and extending from the first end toward the second end, wherein the mesh is configured to encourage endotheliazation over at least part of the expandable anchoring member. - View Dependent Claims (16, 17)
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18. An implantable medical device (IMD), comprising:
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a housing configured to be positioned within an atrium of a patient'"'"'s heart; an anode electrode fixed relative to the housing; a cathode electrode fixed relative to the housing, the cathode electrode spaced from the anode electrode; an expandable anchoring member secured relative to the housing, the expandable anchoring member having a collapsed configuration for delivery and an expanded configuration for securing the expandable anchoring member and the housing within the atrium of the patient'"'"'s heart; the expandable anchoring member comprises four or more struts that, in the expanded configuration, assume an open ended cup shape; and a mesh contacting a plurality of the four or more struts of the expandable anchoring member and extending from the first end toward the second end, wherein the mesh is configured to encourage endotheliazation over at least part of the expandable anchoring member.
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Specification