Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a device includes a framework extending between a primary hub and a secondary hub. The secondary hub is moveable relative to the primary hub upon deploying the framework from a constricted position to a deployed position such that the secondary hub remains proximal a distal end of the framework. The framework, in the deployed position, includes engaging members proximal the distal end of the framework, and the framework includes multiple frame segments each extending with an arcuate configuration at a distal side of the framework such that the frame segments, at the distal side thereof, each extend radially and distally toward the distal end, then turn and extend radially and proximally inward toward the secondary hub.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a device includes a framework extending between a primary hub and a secondary hub. The secondary hub is moveable relative to the primary hub upon deploying the framework from a constricted position to a deployed position such that the secondary hub remains proximal a distal end of the framework. The framework, in the deployed position, includes engaging members proximal the distal end of the framework, and the framework includes multiple frame segments each extending with an arcuate configuration at a distal side of the framework such that the frame segments, at the distal side thereof, each extend radially and distally toward the distal end, then turn and extend radially and proximally inward toward the secondary hub.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an anchor portion and an occluder portion. The anchor portion includes frame segments, each anchor frame segment extending between a first end and a second end such that the second end of each anchor frame segment is coupled to an anchor hub. The occluder portion includes a hub that defines an axis. The occluder portion includes multiple occluder frame segments that extend between a proximal end and a distal end such that the proximal end of the occluder frame segments are pivotably coupled to the hub and the distal end of the occluder frame segments are pivotably coupled to the first end of the anchor frame segments.

Abstract: The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section extends into the tube structure. The tube structure includes a plurality of bypass cuts formed tangentially within the tube structure to increase the flexibility of the tube structure and to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device.

Abstract: Embodiments of the present invention are directed to ablation catheter systems configured, for example, to ablate tissue adjacent an ostium of the pulmonary vein in a left atria of a heart. In one embodiment, an ablation catheter system includes a handle and a catheter coupled to the handle defining a lumen extending through a length of the catheter, the catheter including a distal end thereof. The ablation catheter system may also include an electrode coupled to the handle with lines extending through the lumen of the catheter, the electrode being configured to be constrained adjacent the distal end of the catheter and configured to be deployed from the distal end of the catheter to an expanded configuration.

Abstract: The present disclosure relates to vascular devices such as guidewires and microcatheters having integrated coil sections for optimizing torquability, flexibility, and ability to shape and maintain the distal tip. A guidewire device includes a core and a tube structure coupled to the core such that at least a portion of the core passes into the tube structure. A distal section of the tube structure includes a spiral cut arrangement that configures the distal section as an integral coil integrally incorporated as part of the tube structure. The integrated coil configuration increases the flexibility of the tube structure to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a system for use in occluding an opening in the tissue of a body includes a handle, a catheter coupled with the handle and a medical device disposed within a lumen of the catheter. The medical device includes an anchor system having a plurality of anchor segments coupled with an anchor hub. The medical device further includes an occluder system having a plurality of occluder segments coupled with an occluder hub. A first actuator is configured to displace the occluder hub independent of, and relative to, the anchor hub to deploy the occluder system from a retracted state to an expanded state while the anchor system remains in a retracted state.

Abstract: Embodiments of the present invention are directed to ablation catheter systems configured, for example, to ablate tissue adjacent an ostium of the pulmonary vein in a left atria of a heart. In one embodiment, an ablation catheter system includes a handle and a catheter coupled to the handle defining a lumen extending through a length of the catheter, the catheter including a distal end thereof. The ablation catheter system may also include an electrode coupled to the handle with lines extending through the lumen of the catheter, the electrode being configured to be constrained adjacent the distal end of the catheter and configured to be deployed from the distal end of the catheter to an expanded configuration.

Abstract: Several embodiments are set forth of devices, systems and methods for modifying an atrial appendage such as a left atrial appendage (LAA). In one embodiment, a medical device includes a frame member and a tissue growth member. The frame member includes a unitary, seamless central portion having a plurality of struts defining a multi-cellular structure and an anchoring system, the plurality of struts extending between and configured to self-expand and directly bias the anchor system to anchor the frame member at least partially within the LAA. With this arrangement, the tissue growth member is attached to the frame member to occlude the LAA.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a delivery system for use in occluding an opening in the tissue of a body includes an actuation assembly operatively coupled to a medical device including an anchor portion and an occluder portion. The actuation assembly is configured to move the anchor portion between a deployed state and retracted state while the occluder portion maintains a deployed state. With this arrangement, the deployed occluder portion can be visualized via imaging at a preferred position prior to deploying the anchor portion of the medical device.

Abstract: A medical device and system for modifying a left atrial appendage (“LAA”), as well as related methods, are provided. In accordance with one embodiment, a medical device includes a plurality of frame segments coupled with at least one ring member, the at least one ring member having an inner surface defining notches radially spaced therein, each of the frame segments configured to be positioned within one of the notches of the at least one ring member to collectively form a frame structure. Each frame segment includes a hub portion and at least one leg portion, the hub portion having an upper surface configured to be captured in one of the notches defined in the at least one ring member, and the at least one leg portion extending from the hub portion. With this arrangement, a tissue growth member is coupled to the frame segments.

Abstract: Several embodiments are set forth of devices, systems and methods for modifying an atrial appendage such as a left atrial appendage (LAA). In one embodiment, a medical device includes a frame member and a tissue growth member. The frame member includes a unitary, seamless central portion having a plurality of struts defining a multi-cellular structure and an anchoring system, the plurality of struts extending between and configured to self-expand and directly bias the anchor system to anchor the frame member at least partially within the LAA. With this arrangement, the tissue growth member is attached to the frame member to occlude the LAA.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a device includes a framework extending between a primary hub and a secondary hub. The secondary hub is moveable relative to the primary hub upon deploying the framework from a constricted position to a deployed position such that the secondary hub remains proximal a distal end of the framework. The framework, in the deployed position, includes engaging members proximal the distal end of the framework, and the framework includes multiple frame segments each extending with an arcuate configuration at a distal side of the framework such that the frame segments, at the distal side thereof, each extend radially and distally toward the distal end, then turn and extend radially and proximally inward toward the secondary hub.

Abstract: Devices, methods and systems are provided for delivering a guidewire to a target location within an anatomic structure. In one embodiment, a guidewire includes a guidewire body and a deployable guidewire end portion. The deployable guidewire end portion is coupled to a distal end of the guidewire body, the deployable guidewire end portion having a self-expandable structure moveable between a constricted position and an expanded position. With this arrangement, the guidewire end portion, in the expanded position, includes a distal most side surface sized and configured to a traumatically position and brace the guidewire end portion against tissue at the target location.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an occluder portion and an anchor portion, the anchor portion hingably coupled to the occluder portion. With this arrangement, the anchor portion actuates and pivots relative to the occluder portion between an anchor deployed position and an anchor non-deployed position while the occluder portion is in an occluder deployed position.

Abstract: A medical device and system for modifying a left atrial appendage (“LAA”), as well as related methods, are provided. In accordance with one embodiment, a medical device includes a plurality of frame segments coupled with at least one ring member, the at least one ring member having an inner surface defining notches radially spaced therein, each of the frame segments configured to be positioned within one of the notches of the at least one ring member to collectively form a frame structure. Each frame segment includes a hub portion and at least one leg portion, the hub portion having an upper surface configured to be captured in one of the notches defined in the at least one ring member, and the at least one leg portion extending from the hub portion. With this arrangement, a tissue growth member is coupled to the frame segments.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device coupled to a delivery catheter includes a fluid flow path that facilitates contrast fluid to pass through the delivery catheter and the medical device to a distal side thereof to provide imaging information as to the position of the medical device positioned in the opening, such as the left atrial appendage. In another embodiment, a medical device is coupled to a delivery catheter, the medical device including flaps adjacent a hub of the medical device that close-off a bore of the hub upon the catheter being detached from the medical device.

Abstract: A medical device, system and method for modifying a left atrial appendage (“LAA”). The medical device system includes a tether anchored within the LAA and one or more tissue growth members or occluders configured to be slid over the tether and lodged within the LAA. With this arrangement, a physician may close-off the LAA with a selective number of tissue growth members to meet the varying LAA sizes as determined from imaging information while conducting the procedure.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an occluder portion and an anchor portion, the anchor portion hingably coupled to the occluder portion. With this arrangement, the anchor portion actuates and pivots relative to the occluder portion between an anchor deployed position and an anchor non-deployed position while the occluder portion is in an occluder deployed position.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a system for use in occluding an opening in the tissue of a body includes a handle, a catheter coupled with the handle and a medical device disposed within a lumen of the catheter. The medical device includes an anchor system having a plurality of anchor segments coupled with an anchor hub. The medical device further includes an occluder system having a plurality of occluder segments coupled with an occluder hub. A first actuator is configured to displace the occluder hub independent of, and relative to, the anchor hub to deploy the occluder system from a refracted state to an expanded state while the anchor system remains in a retracted state.