Leadless cardiac pacemaker with delivery and/or retrieval features
First Claim
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1. An implantable leadless cardiac pacing device comprising:
- a housing having a proximal end and a distal end;
an electrode positioned proximate the distal end of the housing configured to be positioned adjacent cardiac tissue; and
a docking member extending from the proximal end of the housing along a longitudinal axis of the housing, the docking member configured to facilitate retrieval of the implantable leadless cardiac pacing device;
the docking member including a head portion and a neck portion extending between the housing and the head portion;
the head portion having a radial dimension from the longitudinal axis and the neck portion having a radial dimension from the longitudinal axis less than the radial dimension of the head portion;
the head portion including a plurality of radially extending spokes extending radially outward from the longitudinal axis of the housing;
wherein each spoke includes a base portion proximate the longitudinal axis of the housing and a free end extending radially outward from the base portion, wherein a width of each spoke increases from the base portion toward the free end of the spoke.
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Abstract
An implantable leadless cardiac pacing device and associated delivery and retrieval devices. The implantable device includes a docking member extending from the proximal end of the housing of the implantable device configured to engage with the delivery and/or retrieval device to facilitate delivery and/or retrieval of the implantable leadless cardiac pacing device.
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Citations
12 Claims
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1. An implantable leadless cardiac pacing device comprising:
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a housing having a proximal end and a distal end; an electrode positioned proximate the distal end of the housing configured to be positioned adjacent cardiac tissue; and a docking member extending from the proximal end of the housing along a longitudinal axis of the housing, the docking member configured to facilitate retrieval of the implantable leadless cardiac pacing device; the docking member including a head portion and a neck portion extending between the housing and the head portion; the head portion having a radial dimension from the longitudinal axis and the neck portion having a radial dimension from the longitudinal axis less than the radial dimension of the head portion; the head portion including a plurality of radially extending spokes extending radially outward from the longitudinal axis of the housing; wherein each spoke includes a base portion proximate the longitudinal axis of the housing and a free end extending radially outward from the base portion, wherein a width of each spoke increases from the base portion toward the free end of the spoke. - View Dependent Claims (2, 3)
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4. An implantable leadless cardiac pacing device comprising:
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a housing having a proximal end and a distal end; an electrode positioned proximate the distal end of the housing configured to be positioned adjacent cardiac tissue; and a docking member extending from the proximal end of the housing along a longitudinal axis of the housing, the docking member configured to facilitate retrieval of the implantable leadless cardiac pacing device; the docking member including a head portion and a neck portion extending between the housing and the head portion; the head portion having a radial dimension from the longitudinal axis and the neck portion having a radial dimension from the longitudinal axis less than the radial dimension of the head portion; the head portion including a plurality of radially extending spokes extending radially outward from the longitudinal axis of the housing; wherein each of the spokes includes a body portion extending radially outward to a free end of the spoke and a crossing member extending transverse to the body portion. - View Dependent Claims (5, 6, 7)
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8. A system for retrieving an implantable leadless cardiac pacing device, comprising:
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an implantable cardiac pacing device having a housing having a longitudinal axis, an electrode positioned proximate a distal end of the housing, and a docking member extending from a proximal end of the housing opposite the distal end, the docking member including a head portion and a neck portion extending between the housing and the head portion, the head portion including a plurality of radially extending spokes extending radially outward from the longitudinal axis of the housing; and a retrieval device including a snare having an elongate shaft and one or more loops at a distal end of the elongate shaft; wherein the one or more loops of the retrieval device are capable of encircling one or more of the radially extending spokes to capture the docking member with the snare; wherein each spoke includes; i) a base portion proximate the longitudinal axis of the housing and a free end extending radially outward from the base portion, wherein a width of each spoke increases from the base portion toward the free end of the spoke;
orii) a body portion extending radially outward to a free end of the spoke and a crossing member extending transverse to the body portion. - View Dependent Claims (9, 10, 11, 12)
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Specification