A clot retrieval device for removing an occlusive clot from a blood vessel. The device includes a clot engagement section having a constrained delivery configuration and an expanded deployed configuration, wherein in the expanded deployed configuration. The clot engagement section can include a plurality of peak sections configured to vary contact pressure between the clot and the device along a length of the device; and a plurality of troughs between respective peak sections comprising a clot reception space. Each peak is configured to exert a relatively high compressive force on the clot whereas each trough is configured to exert little or no compressive force on the clot.

Described herein are methods using mechanical inverting tube apparatuses to remove clot (e.g., thrombectomy), the apparatuses including an inversion support catheter having an expandable funnel-shaped distal end, and a flexible tube that can be continuously rolled over the funnel-shaped distal end and invert into the inner lumen of the inversion support catheter.

The present disclosure provides a tissue-removing catheter for removing tissue in a body lumen that includes an elongate body, a handle, tissue-removing element, liner assembly, and coupling assembly. The elongate body is sized and shaped to be received in the body lumen. The tissue-removing element is mounted on a distal end portion of the elongate body and removes tissue as rotated by the elongate body. The liner assembly defines a guidewire lumen. The coupling assembly is coupled to the liner assembly with a first orientation and a second orientation relative to the coupling assembly. The first orientation permits distal movement of the liner assembly relative to the coupling assembly prior to rotation of the elongate body to rotate the tissue-removing element. The second orientation is relative to the coupling assembly after rotation of the elongate body to prevent distal movement of the liner assembly relative to the coupling assembly.

An intravascular device is provided having an expandable portion including a plurality of struts capable of being moved between an open and a closed position. A grating tool is provided on at least one of the struts. The grating tool is configured to remove atherosclerotic material or other substances located within the blood vessel when the expandable portion is in the opened position and moved axially through the blood vessel.

An atherectomy system includes a handle having a handle housing and a drive motor that is disposed within the handle housing and is adapted to rotate a drive cable extending through the handle and operably coupled to an atherectomy burr. A supply line extends from the handle housing. A supply line fitment may be disposed relative to the handle housing and may be configured to releasably secure the supply line relative to the handle housing such that the supply line is directed away from the handle housing in a direction that is selected from two or more directions.

A power tool for removing an intervertebral disc and preparing vertebral endplates is described. The power tool may include a cutting element, and the height of the cutting element may be adjustable. The cutting element may be a braided cable and may include one or more beads to enhance the effectiveness of the cable. The cutting element may have a minimum height requirement, which may not be satisfied in patients with a collapsed disc due to degenerative disc disorder. For these patients, also described are bone tamps for increasing the intervertebral distance and providing access to tissues distal to the tamp. One type of bone tamp features an inflatable balloon with an inner lumen. Another type of bone tamp includes an expanding distal end and an inner cannula. Also described is a manual expander scraper tool that is compatible with both types of bone tamp.

Medical methods and devices for treating aortic dissections. A catheter-based cutting device permits cutting a septum of acute or chronic aortic dissections, in a retrograde manner. The catheter includes a base section having a central lumen therethrough and two flexible arms extending from a distal end thereof. The flexible arms can each have a guide wire channel therethrough. With distal ends of the two flexible arms separated, the two arms form a Y-shape with the base section. In one embodiment, with distal ends of the two flexible arms together, the two arms have a longitudinal profile, about a periphery thereof, identical to a longitudinal profile of the base section. A cutting component resides between the two arms. The cutting component can face distally outward between the two arms with the distal ends of the two flexible arms separated.

The present disclosure relates generally to medical devices and the use of medical devices for the treatment of vascular conditions. Particularly, the present disclosure provides devices and methods for using a vibrational wire guide to cut and/or core through a venous obstruction, such as a chronic clot.

An alternative to using a stent, a catheter apparatus and method removes arterial plaque within an isolated environment at a target site while separately maintaining continuous blood flow, then removed post procedure. A catheter head has a tubular array for providing a plaque treatment solution within a first layer of the catheter apparatus without the same entering the blood stream, and for receiving a guide-wire to position the apparatus at the target site. The first layer has a plurality of flap members, with each defining an air pressure regulated pore for plaque removal using an inflow tube and an outflow tube. A separate second layer of the catheter apparatus accommodates continuous blood flow during the procedure. A third layer of the catheter apparatus contains the selectively inflatable balloon. When the balloon is inflated, the catheter head and the catheter end cap each inflate to supports the arterial wall.

A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material.