Extraction devices configued to extract chronically implanted medical devices
AssigneeCardiac Pacemakers, Inc.
InventorsAllan Charles Shuros, Brian Soltis, Arjun D. Sharma
Life of this patent
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Abstract
Extraction devices for extracting chronically implanted devices such as leadless cardiac pacemakers (LCP). In some cases, the extraction devices may be configured to cut or tear through at least some of the tissue ingrowth around and/or over the chronically implanted device such that a retrieval feature on the chronically implanted device may be grasped for removal of the chronically implanted device.
Claims20
An extraction device for removing a previously implanted LCP, the LCP including a retrieval feature disposed at a proximal end of the LCP, the extraction device having a proximal region and a distal region, the extraction device comprising:
- a retrieval cavity at the distal region of the extraction device that is sized to accommodate at least part of the LCP therein once the LCP is extracted;
- a retrieval loop extendable beyond the retrieval cavity and manipulatable from the proximal region by an operator of the extraction device;
- the retrieval loop is configured along an inside surface of the retrieval loop to cut through ingrowth tissue that extends over the LCP in order to expose the retrieval feature of the LCP;
- and
- the retrieval loop is further configured to grasp the exposed retrieval feature and pull the LCP into the retrieval cavity of the extraction device.
An extraction device for removing a previously implanted LCP, the implanted LCP including a retrieval feature disposed at a proximal end of the LCP, the extraction device having a proximal region and a distal region, the extraction device comprising:
- a retrieval cavity at the distal region of the extraction device that is sized to accommodate at least part of the LCP therein once the LCP is extracted;
- and
- an extractor member extendable beyond the retrieval cavity and configured to cut through ingrowth tissue that extends over the LCP in order to expose the retrieval feature of the LCP.
A retrieval loop for removing a previously implanted LCP, the retrieval loop comprising a first surface and an opposing second surface, wherein the first surface is configured to cut tissue better than the opposing second surface.
Dependencies are inferred from the claim text.