Leadless cardiac pacemaker with retrieval features
AssigneeCardiac Pacemakers, Inc.
InventorsBRIAN L. SCHMIDT, BENJAMIN J. HAASL, JOHN M. EDGELL, DANA SACHS
Life of this patent
Estimating the term…
Abstract
An implantable leadless cardiac pacing device and associated retrieval features. The implantable device includes a docking member extending from the proximal end of the housing of the implantable device including a covering surrounding at least a portion of the docking member configured to facilitate retrieval of the implantable leadless cardiac pacing device.
Claims20
An implantable leadless cardiac pacing device comprising:
- a housing having a proximal end, a distal end, and a circumferential surface extending between the proximal end and the distal end;
- an electrode positioned proximate the distal end of the housing configured to be positioned adjacent cardiac tissue;
- 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;
- and
- a covering surrounding at least a portion of the docking member and including one or more retrieval features having a radial dimension from the longitudinal axis greater than a radial dimension of the housing from the longitudinal axis to the circumferential surface of the housing.
An implantable leadless cardiac pacing device comprising:
- a housing having a proximal end, a distal end, and a circumferential surface extending between the proximal end and the distal end;
- an electrode positioned proximate the distal end of the housing configured to be positioned adjacent cardiac tissue;
- 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;
- and
- one or more flexible retrieval features extending from the head portion of the docking member configured to direct a retrieval device into engagement with the docking member, the one or more flexible retrieval features configured to deflect from an equilibrium state to a delivery state.
A method of retrieving an implantable cardiac pacing device, the implantable cardiac pacing device having a housing having a proximal end, a distal end, and a circumferential surface extending between the proximal end and the distal end, an electrode positioned proximate the distal end of the housing, and a docking member extending from the proximal end of the housing along a longitudinal axis of the housing, the docking member including a head portion, a neck portion extending between the housing and the head portion, and one or more flexible retrieval features extending from the head portion of the docking member, the one or more flexible retrieval features configured to deflect from an equilibrium state to a delivery state, the method comprising:
- advancing a snare toward the docking member such that the snare engages an engagement surface of the one or more flexible retrieval features and the engagement surface
- guiding the snare along the engagement surface into a recess area between the engagement surface and the neck portion of the docking member;
- and
- cinching the loop around the neck portion of the docking member.
Dependencies are inferred from the claim text.