Devices and methods divert blood flow from a first vessel to a second vessel and maintain blood flow in the first vessel. The device includes a first segment and a second segment. The first segment is configured to anchor in the first vessel. The first segment includes a window to allow blood to flow into the first segment, through the window, and distal in the first vessel. The second segment is configured to anchor in the second vessel. The second segment is configured to allow blood to flow into the first segment, through the second segment, and into the second vessel.

Devices and methods for restoring patency of a catheter. Devices can include an elongate member configured for insertion through the catheter. Elongate members can facilitate delivery of a chemical agent directly to a catheter blockage and/or facilitate agitation of the chemical agent in close proximity to the blockage. A catheter or catheter system disclosed herein includes a device for removing the blockage. The device for removing a blockage from a catheter can include an elongate member configured for insertion through a catheter lumen, the elongate member defining a proximal end and a distal end, and an agitation actuator coupled with the elongate member adjacent the proximal end, wherein operation of the actuator causes agitation of a fluid adjacent the distal end.

A method for minimizing infectious particle exposure during endonasal surgeries includes the steps of: introducing an aspiration device through a mouth of a patient and positioning a distal tip within the nasopharynx space, the aspiration device comprising an elongated balloon catheter having an inflatable balloon located within a distal region thereof and a distal aspiration port that is positioned distal to the balloon; inflating the balloon so that the balloon occupies the nasopharynx space; and aspirating any infectious particles within the nasopharynx space via the distal aspiration port.

Devices, methods, and systems are provided for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment. A video-assisted thoracoscopic device is inserted into a thoracic cavity of a patient and positioned at a fissure between a target lung compartment and an adjacent lung compartment. A collateral flow channel between the target lung compartment and the adjacent lung compartment is then identified using the video-assisted thoracoscopic device and an agent is injected into the collateral flow channel, thereby reducing the collateral flow channel.

Disclosed herein are apparatus embodiments and methods for using same that facilitate occlusion of a lumen in a subject. In a particular example, the apparatus is configured for occluding a portion of the lower GI tract (e.g. colon). Further, the apparatus is configured for placement in the lumen and insufflation to secure within the lumen such that the apparatus remains in place without the need for uncomfortable conduits or tools extending out of the patient. In a particular method embodiment, the apparatus is useful for occluding a lumen following a surgical procedure such as an anastomosis.

Vaso-occlusive apparatuses, including implants, and methods of using them to treat aneurysms. For example, described herein are expandable vaso-occlusive implants that include one or more soft and expandable braided member coupled to a pushable member such as a coil that maybe inserted and retrieved from within an aneurism using a delivery catheter. In particular, the expandable implants described herein are configured to allow relatively soft and elongate implants to be pushed out of a cannula without binding up within the cannula.

A device for use with a uterine tamponade balloon catheter apparatus, such as the Bakri postpartum hemorrhage balloon, is disclosed. The device comprises a stylet comprising a hub at its proximal end and an atraumatic tip at its distal end. The device is configured to be removably coupled to the tamponade balloon catheter apparatus to aid in the insertion and positioning of the tamponade balloon catheter within the uterine cavity, allowing the balloon to function as intended for the control and management of postpartum hemorrhage and uterine bleeding. The tamponade balloon catheter includes an echogenic element to aid in visualization by ultrasound during insertion and use. Methods of use of the device are also disclosed.

A non-occlusive device is provided that includes a coilable section and a docking section. When deployed from a microcatheter within a wide-neck vascular aneurysm, the coilable section is configured to become coiled into a coil defining a sequence of concentric loops, and to bridge a neck of the aneurysm so as to at least partially cover an orifice of the aneurysm, when in use. The docking section is configured to be deployed from the microcatheter within the aneurysm. The docking section extends distally from an outermost one of the concentric loops of the coil, and is shaped so as to define one or more concentric loops having an outer diameter less than an outer diameter of the concentric loops of the coil. The docking section is configured to anchor, stabilize, and/or assist with positioning of the device within the aneurysm. Other embodiments are also described.

A method of inducing retrograde blood flow may include extending a sheath through opposite walls of one of an artery and a vein of a subject and through a wall of the other of the artery and the vein such that a distal end of the sheath may be positioned within one of the artery and the vein. The method may include inducing retrograde blood flow in the artery and delivering the induced retrograde blood flow into the vein of the subject via the sheath.

The volume of a hyperinflated lung compartment is reduced by sealing a distal end of the catheter in an airway feeding the lung compartment. Air passes out of the lung compartment through a passage in the catheter while the patient exhales. A one-way flow element associated with the catheter prevents air from re-entering the lung compartment as the patient inhales. Over time, the pressure of regions surrounding the lung compartment cause it to collapse as the volume of air diminishes. Residual volume reduction effectively results in functional lung volume expansion. Optionally, the lung compartment may be sealed in order to permanently prevent air from re-entering the lung compartment.