A system, device and method for left atrial appendage occlusion detection is disclosed. The system for occlusion detection comprises a sheath; a delivery system comprising: a delivery catheter extending between a proximal end and a distal end; and a handle coupled to the proximal end of the delivery catheter; a medical tool coupled to a distal end of the delivery catheter at a target location within a portion of an organ of a patient, the medical device comprising a hub including a bore defining an axis, an occluder portion coupled to the hub and an anchor portion extending between a first end and a second end; at least one pressure sensor configured to measure a pressure of the target cavity while blood is suctioned form inside the left atrial appendage; and at least one processor configured to process the pressure measurement acquired from the at least one pressure sensor.

An embolisation device (10) for promoting clot formation in a bodily lumen (L) and having a collapsed delivery configuration for delivery of the embolisation device (10) into, and retrieval of the embolisation device (10) from, the bodily lumen (L) and an expanded deployed configuration for anchoring the embolisation device (10) in the bodily lumen (L). The embolisation device (10) comprises a tubular cage (20) having a collapsed delivery configuration and an expanded deployed configuration. The embolisation device further comprises an embolisation member (30) disposed in the tubular cage (20), the embolisation member (30) comprising a stem (31) and a plurality of flexible bristles (32) extending outwardly from the stem, the plurality of flexible bristles having a collapsed delivery configuration and an expanded deployed configuration. The embolisation device (10) is configured such that as the tubular cage (20) is transitioned from its expanded deployed configuration to its collapsed delivery configuration the plurality of flexible bristles (32) is urged by the tubular cage (20) from the expanded deployed configuration of the flexible bristles (32) to the collapsed delivery configuration of the flexible bristles (32).

An embolisation device (100) for promoting clot formation in a bodily lumen (170), comprising a stem (110) and a plurality of flexible bristles (120) extending outwardly from the stem, the bristles having a contracted delivery configuration and an expanded deployed configuration in which the bristles extend at least radially outwardly from the stem to anchor the device in the lumen. The embolisation device comprises a flow restrictor configured to restrict flow through the bodily lumen. The flow restrictor comprises: a membrane support (135) having a contracted delivery configuration and an expanded deployed configuration and comprising a self-expanding mesh extending at least radially outwardly from the stem; and an occluding membrane (130) mounted on the membrane support (135). The occlusion rate of the occluding mesh membrane is greater than that of the membrane support. The flow restrictor is attached to the stem at a first longitudinal end, the flow restrictor further comprising an open second longitudinal end. The occluding membrane is configured to restrict flow through the lumen when the device is deployed and the membrane support is in the expanded deployed configuration.

A vessel occluder used to occlude blood flow within the vasculature is described. The vessel occluder can include an expandable mesh portion having a flexible membrane that expands within a cavity of the expandable mesh portion. When expanded, the flexible membrane blocks blood passage through the mesh portion.

A method for constructing a braided implant delivery system and treating an aneurysm can include attaching a braided implant having a band attached thereto to a delivery tube, positioning the braided implant within the aneurysm, and releasing the band from the delivery tube, thereby releasing the braided implant. The band can include movable extensions that can press into an outer surface of the delivery tube to secure the band to the delivery tube then move away from the outer surface of the delivery tube to release the band. A pull wire can be engaged to the band to secure the band to the delivery tube then be pulled proximally to release the band from the delivery tube. At least a portion of the braid of the braided implant can be positioned within a lumen of the delivery tube.

A braided implant is provided that can secure within an aneurysm sac, occlude a majority of the aneurysm's neck, and at least partially fill the aneurysm sac. The implant can include a tubular braid that can be set into a predetermined shape, compressed for delivery through a microcatheter, and implanted in at least one implanted position. In some examples, the tubular braid can be implanted in two distinct implanted shapes, allowing for treatment of a wide range of aneurysm sizes. In some examples, the implanted braid can include a compaction resistant column spanning the height of the aneurysm.

A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.

A flow reducing implant for reducing blood flow in a blood vessel having a cross sectional dimension, the flow reducing implant comprising a hollow element adapted for placement in the blood vessel defining a flow passage therethrough, said flow passage comprising at least two sections, one with a larger diameter and one with a smaller diameter, wherein said smaller diameter is smaller than a cross section of the blood vessel. A plurality of tabs anchor, generally parallel to the blood vessel wall, are provided in some embodiments of the invention.

An atrial appendage closure device is provided that includes an insertion rod having a first end and a second end. An occluding member having an outer surface and an inner surface is connected to the first end of the insertion rod. The occluding member is moveable between a retracted position and a deployed position such that, in the deployed position, the occluding member is configured to provide a seal between a left atrial appendage and a left atrium of a heart. An anchoring member is further connected to the insertion rod and is configured to slide along the insertion rod to secure the device to a wall of a left atrial appendage. Methods for occluding a left atrial appendage that make use of the closure devices are also provided.

This invention is an intrasacular aneurysm occlusion device with a longitudinal mesh ribbon having a series of loops or segments with distal-to-proximal variation in their sizes, shapes, or orientations. For example, loops or segments can be progressively smaller in size and/or progressively more curved as one views the series in a distal-to-proximal direction. The device may also enable a user to selectively and remotely bend, steer, or elongate the loops or segments in real time as the ribbon is being deployed into an aneurysm sac.