Pacemaker retrieval systems and methods
AssigneePacesetter, Inc.
InventorsAlexander Khairkhahan, Alan Klenk, Thomas Blake Eby
Life of this patent
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Abstract
A catheter system for retrieving a leadless cardiac pacemaker from a patient is provided. The cardiac pacemaker can include a docking or retrieval feature configured to be grasped by the catheter system. In some embodiments, the retrieval catheter can include a snare configured to engage the retrieval feature of the pacemaker. The retrieval catheter can include a torque shaft selectively connectable to a docking cap and be configured to apply rotational torque to a pacemaker to be retrieved. Methods of delivering the leadless cardiac pacemaker with the delivery system are also provided.
Claims20
A leadless pacemaker, comprising:
- a housing having a central axis;
- a plurality of electrodes coupled to the housing;
- and
- a retrieval feature at a proximal end of the housing, wherein the retrieval feature includes a grasping feature connected to the housing by a stem, wherein a plurality of cutouts extend into the grasping feature to a transverse member, wherein the transverse member extends transverse to the central axis to define a gap on the central axis between the transverse member and the housing, and wherein the gap is configured to receive a snare.
A leadless pacemaker system, comprising:
- a leadless pacemaker including a housing having a central axis, a plurality of electrodes coupled to the housing, and a retrieval feature at a proximal end of the housing, wherein the retrieval feature includes a grasping feature connected to the housing by a stem, wherein a plurality of cutouts extend into the grasping feature to a transverse member, wherein the transverse member extends transverse to the central axis to define a gap on the central axis between the transverse member and the housing, and wherein the gap is configured to receive a snare;
- and
- a delivery system including a docking cap to receive the retrieval feature of the leadless pacemaker.
A method, comprising:
- grasping, by a snare, a retrieval feature of a leadless pacemaker, wherein the leadless pacemaker includes a housing having a central axis, a plurality of electrodes coupled to the housing, and the retrieval feature at a proximal end of the housing, wherein the retrieval feature includes a grasping feature connected to the housing by a stem, wherein a plurality of cutouts extend into the grasping feature to a transverse member, wherein the transverse member extends transverse to the central axis to define a gap on the central axis between the transverse member and the housing, and wherein the gap is configured to receive a snare;
- and
- advancing a snare locking sleeve over the snare to close the snare around the retrieval feature.
Dependencies are inferred from the claim text.