Blood-vessel-anchored cardiac sensor
AssigneeEdwards Lifesciences Corporation
InventorMichael G. Valdez
Life of this patent
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Abstract
A method of sensing a physiological parameter involves advancing a delivery catheter to a right atrium of a heart of a patient via a transcatheter access path, advancing the delivery catheter through an interatrial septum wall into a left atrium of the heart, deploying a distal anchor of a sensor implant device from the delivery catheter, anchoring the distal anchor of the sensor implant device to a first pulmonary vein, withdrawing the delivery catheter away from the first pulmonary vein, thereby exposing at least a portion of a sensor module of the sensor implant device in the left atrium, deploying a proximal anchor of the sensor implant device from the delivery system, anchoring the proximal anchor of the sensor implant device to a second pulmonary vein, and withdrawing the delivery catheter from the heart.
Claims39
A method of sensing a physiological parameter, the method comprising:
- advancing a delivery system to a right atrium of a heart of a patient via a transcatheter access path;
- advancing the delivery system through an interatrial septum wall into a left atrium of the heart;
- deploying a distal anchor of a sensor implant device from the delivery system;
- anchoring the distal anchor of the sensor implant device to a first pulmonary vein;
- withdrawing the delivery system away from the first pulmonary vein, thereby exposing at least a portion of a sensor module of the sensor implant device in the left atrium, the sensor module being coupled to the distal anchor via a first arm segment;
- deploying a proximal anchor of the sensor implant device from the delivery system, the proximal anchor being coupled to the sensor module via a second arm segment;
- anchoring the proximal anchor of the sensor implant device to a second pulmonary vein, thereby securing the sensor module in a position adjacent to a left atrial wall portion of the left atrium between the first pulmonary vein and the second pulmonary vein;
- and
- withdrawing the delivery system from the heart.
A sensor implant device comprising:
- a sensor module including a housing and a sensor element;
- a first stent anchor;
- a second stent anchor;
- and
- an at least partially flat coupling arm extending from a distal portion of the first stent anchor to a proximal portion of the second stent anchor and running along entire lengths of the first stent anchor and the second stent anchor, the sensor module being attached to a medial portion of the coupling arm between the first and second stent anchors.
A delivery system comprising:
- an outer shaft;
- a sensor implant device disposed at least partially within the outer shaft, the sensor implant device comprising:
- a first anchor device disposed within the outer shaft in a first pre-deployment configuration with a first diameter;
- a second anchor device;
- and
- a sensor module physically coupled to the first anchor device and the second anchor device via respective connecting arm segments;
- a distal inner shaft disposed at least partially within the outer shaft and configured to axially abut a proximal portion of the first anchor device within the outer shaft;
- and
- a proximal inner shaft disposed at least partially within the distal inner shaft and configured to axially abut a proximal portion of the sensor module within the distal inner shaft, the second anchor device being disposed within the proximal inner shaft in a second pre-deployment configuration with a second diameter that is less than the first diameter.
A sensor implant device comprising:
- a first stent anchor;
- a first arm structure connected to the first stent anchor and extending axially beyond an axial end of the first stent anchor;
- and
- a sensor device secured to the first arm structure;
- wherein the first arm structure projects from an axial end of the first stent anchor and is bent outwardly at an approximately right angle relative to an axis of the first stent anchor, such that the sensor device is positioned entirely radially outside of an outer diameter of the first stent anchor.
A method of sensing a physiological parameter, the method comprising:
- advancing a delivery system to a left atrium of a heart of a patient via a transcatheter access path;
- deploying a first anchor of a sensor implant device from the delivery system;
- anchoring the first anchor of the sensor implant device within a first pulmonary vein;
- withdrawing the delivery system away from the first pulmonary vein;
- exposing at least a portion of a sensor module of the sensor implant device in the left atrium, the sensor module being coupled to the first anchor via a first support arm segment;
- allowing the first support arm segment to bend radially away from an axis of the first anchor to position the sensor module in a position abutting against a wall portion of the left atrium between the first pulmonary vein and a second pulmonary vein;
- and
- withdrawing the delivery system from the heart.
Dependencies are inferred from the claim text.