Release Mechanism for LAA Occluder with Electrodes
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsLouis-Philippe Richer, Saurabh Datta
Life of this patent
Estimating the term…
Abstract
A system for occluding a left atrial appendage (“LAA”) includes a delivery device and an LAA occluder. The LAA occluder has an indicator electrode coupled to a connector electrode via a conducting wire. The delivery device has a connector with a connector electrode configured to be coupled to a navigation system via a conducting wire. During implantation, the delivery device is coupled to the LAA occluder so that the connector electrodes are electrically coupled, resulting in the indicator electrode being conductively coupled to the navigation system. After the LAA occluder is deployed into the LAA, the delivery device is disconnected from the LAA occluder to allow the LAA occluder to remain in the patient.
Claims20
A system for occluding a left atrial appendage (“LAA”) of a patient, the system comprising:
- a delivery device including a catheter and a delivery cable configured to be received within the catheter, the delivery cable including a distal connector, the distal connector including a first distal connector electrode, a first delivery device conducting wire having a distal end coupled to the first distal connector electrode and having a proximal end configured to couple to a navigation system external to the patient;
- and
- a collapsible and expandable LAA occluder having a first implant electrode, the first implant electrode being positioned on the LAA occluder so that, when the LAA occluder is in an expanded condition within the LAA of the patient, the first implant electrode is in contact with tissue of the LAA, the LAA occluder including a proximal connector, the proximal connector including a first proximal connector electrode, a first implant conducting wire having a distal end coupled to the first implant electrode and having a proximal end coupled to the first proximal connector electrode;
- wherein the system has (i) a delivery condition in which the distal connector is connected to the proximal connector to couple the LAA occluder to the delivery cable so that the first distal connector electrode is in contact with the first proximal connector electrode to conductively couple the first implant electrode with the proximal end of the delivery device conducting wire via the first implant conducting wire, and (ii) an implanted condition in which the distal connector is disconnected from the proximal connector to decouple the LAA occluder from the delivery cable, so that the first distal connector electrode is not in contact with the first proximal connector electrode.
A method of occluding a left atrial appendage (“LAA”) of a patient, the method comprising:
- advancing a LAA occluder through a catheter of a delivery device while the LAA occluder is in a collapsed condition and while a proximal connector of the LAA occluder is connected to a distal connector of a delivery cable of the delivery device in a delivery configuration;
- allowing the LAA occluder to expand within the LAA of the patient so that a first implant electrode on the LAA occluder contacts tissue of the LAA while the proximal connector remains connected to the distal connector;
- receiving a signal transmitted from the first implant electrode to a navigation system external to the patient when the first implant electrode is in contact with tissue of the LAA, the signal being transmitted (i) from the first implant electrode to a first proximal connector electrode on the proximal connector via a first implant conducting wire having a distal end coupled to the first implant electrode and having a proximal end coupled to the first proximal connector electrode, (ii) from the first proximal connector electrode to a first distal connector electrode on the distal connector, and (iii) from the first distal connector electrode to the navigation system via a first delivery device conducting wire having a distal end coupled to the first distal connector electrode and having a proximal end coupled to the navigation system;
- and
- after receiving the signal, disconnecting the distal connector from the proximal connector so that the LAA occluder disconnects from the delivery device and so that the first distal connector electrode is no longer in contact with the first proximal connector electrode.
Dependencies are inferred from the claim text.