Devices and methods for occluding the left atrial appendage

A system for occluding a left atrial appendage of a patient, the system comprising:

• a handle;
• an elongated shaft extending from the handle, the elongated shaft comprising a proximal end, a distal end, and a central lumen extending along a longitudinal axis of the elongated shaft;
• an end effector at the distal end of the elongated shaft, the end effector comprising a first jaw and a second jaw configured to engage with and deliver an occlusion clip to a target tissue, wherein the end effector comprises a link mechanism configured to move the first jaw and the second jaw relative to each other;
• a plurality of cables extending through the central lumen;
• an articulation plate coupled to the handle;
• an articulation joint coupling the articulation plate and the shaft, the articulation joint configured to allow rotational movement between the handle and the elongated shaft;
• and
• wherein the handle comprises a lever portion configured to rotate in a first plane perpendicular to the longitudinal axis, wherein the lever portion is configured to rotate in a second plane perpendicular to the first plane, wherein rotation of the lever portion in the first plane moves the end effector in a yaw direction and rotation of the lever portion in the second plane moves the end effector in a pitch direction.

A medical device for applying an occlusion clip, the medical device comprising:

• a handle;
• an elongated shaft extending from the handle, the elongated shaft comprising a proximal end, a distal end, and a central lumen;
• an end effector at the distal end of the elongated shaft, the end effector comprising a first jaw and a second jaw configured to engage with and deliver the occlusion clip to a target tissue;
• a plurality of cables extending through the central lumen;
• an articulation plate coupled to the handle, wherein the articulation plate comprises a central opening and a plurality of peripheral openings, wherein each of the plurality of peripheral openings receives a screw;
• an articulation joint coupling the articulation plate and the elongated shaft, the articulation joint configured to allow rotational movement between the handle and the elongated shaft;
• and
• an articulation lock system within the handle, wherein the articulation lock system comprises a ring configured to engage the articulation joint and the articulation plate such that the articulation joint and the articulation plate are locked, locking the end effector.