This disclosure concerns systems and methods for removal of material from the body of a patient, and particularly for percutaneous nephrolithotomy. Systems according to the various embodiments of the disclosure include one or more of nested first and second components, for instance a scope nested within a suction or irrigation catheter, guidewires with self-expanding distal tips, and wash-out elements to facilitate rapid removal of stones through an access sheath.

An arthroscopic surgical device including: a body with a proximal end, a distal end, and a body longitudinal axis extending between the proximal end and the distal end; the body including: an elongated sheath arranged along a sheath longitudinal axis, the sheath including: a sheath flexible portion; and a lumen running longitudinally through the sheath; an elongated spine arranged along a spine longitudinal axis, the spine connected to the sheath, the spine including a spine joint; wherein the spine is rigid in a direction of elongation of the spine; wherein the sheath longitudinal axis and the spine longitudinal axis are aligned, for at least a portion of a sheath longitudinal length, wherein the flexible portion axially overlaps with the spine joint, bending the spine joint thereby bending the flexible portion.

A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.

A specimen retrieval system for easier tissue removal during endoscopic surgery. The device includes a specimen tube with a main tube, and a mechanism for pulling and everting the distal end of the tube into the tube, or a side channel provided within the tube. The mechanism may include a tether fixed to the distal edge of the tube, or a grasper operable to grasp the distal edge of the tube.

A stent system according to the present invention is for use in retrieving a blood clot from the brain region and includes a wire; a first stent connected to a distal portion of the wire; a first outer sheath that covers and is fixed to a portion of the wire proximal to the first stent; and a second stent disposed on a portion of the wire proximal to the first stent, in which the second stent is configured to be movable toward or away from the first stent.

Disclosed herein are systems and methods for visualizing a target anatomy of a patient in preparation of a medical procedure. The method can include providing a visualization device (400) that probes the target anatomy and provides a display to the operator. The method can include positioning the visualization device at a location near the target anatomy. The method can further include directing a medical instrument towards a target trajectory displayed on the visualization device. The visualization device can have a body that defines two surface areas. The visualization device can include transducers along one surface area of the device to capture the target anatomy. A user interface (420) can be disposed on another surface area of the device. The display can include parallax for adjusting the visualization.

A method for removing a stone from a patient comprising the steps of: providing a suction evacuation assembly which includes a sheath and one or more side arms; inserting and positioning a distal end of the sheath into a lumen or cavity of a patient's body containing a stones; connecting a tube to one of the side arms and to a collection bottle; connecting another tube to the collection bottle and a negative pressure system; visualizing the stone or foreign body using a scope inserted through the assembly; activating the negative pressure system in order to remove the stone from the cavity if the diameter of the stone is narrower than an inside diameter of the sheath and the side arm, or performing a lithotripsy on the stone to create fragments with a decreased diameter which allow the passage through the assembly; and collecting the stone in the collection bottle.

Provided herein are methods and systems for the removal of anatomical occlusions, and an occlusion removal device comprising a first body adapted to be mounted to a delivery wire and releasably engaged to the delivery wire, wherein while engaged the first body remains fixed on the delivery wire and upon release moves axially along the delivery wire, and a second body adapted to be mounted to the delivery wire. A first proximal body may be oriented proximally to a second distal body. The proximal body and the distal body may be adapted to expand upon exiting a delivery catheter. The proximal body may be releasably engaged by a mechanically breakable connection or an electrolytically or heat disconnectable connection, the electrolytically disconnectable connection being broken upon an application of electric current to the electrolytically disconnectable connection.

An integrated clot evacuation device having visualization for use in neurosurgical applications, particularly for the evacuation of clots formed as a result of intracranial hemorrhage (ICH). The device may further include an integrated camera and light for visualizing the interior of the brain and the clot itself. Further, the device is configured to evacuate clots through aspiration and irrigation.

Systems and methods for creating autologous monocuspid and bicuspid valves can include a catheter having a single expandable element or a double expandable element. Once the leaflets of the valve are created, various techniques can be used to fix the leaflets to the vessel wall or to each other, including clips, tissue anchors, adhesives, and heat.