A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; expanding a stent, from a delivery device, across the aneurysm; and confirming that a stagnated area forms in the aneurysm. The stagnated area can form a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side. Upon confirming that the stagnated area forms in the aneurysm, the delivery device can be withdrawn from the blood vessel. The stagnated area can include the contrast agent. If the stagnated area does not form in the aneurysm, a second occluding device may be deployed. After withdrawing the delivery device, substantially all of the aneurysm progressively thromboses.

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.

The present invention provides transseptal puncture devices configured to access structures on the left side of the heart from the right side of the heart without requiring open-heart surgery. The devices have adjustable stiffness to enter the vasculature in a flexible, atraumatic fashion, then become rigid once in place to provide a stable platform for penetration of the fossa ovalis. The devices are further configured to controllably and stably extend a needle to puncture the FO. The devices include an indwelling blunt stylus that can extend perpendicularly from the device to increase the accuracy of placement near the fossa ovalis.

A medical device that removes an object in a body lumen, includes a rotatable drive shaft, a cutter attached to a distal portion of the drive shaft and by which the object is cut, an outer tube surrounding the drive shaft, a guide wire tube attached to a distal portion of the outer tube and having a guide wire lumen therein, a metal member attached to the guide wire tube and including a first portion that extends along the guide wire tube and includes a first recess, and a distal tip made of a resin, disposed at a distal portion of the guide wire tube, and having a distal lumen that communicates with the guide wire lumen. The distal tip engages with the first recess of the metal member.

An atherectomy catheter for use in a vessel includes a catheter and a rotatable cutter. The rotatable cutter can be translatable within the catheter to extend the cutter through a window of the catheter or retracted the cutter within the catheter. The catheter can have fixed bend and/or have a shapeable portion configured to facilitate positioning and movement of the cutter. In some cases, the cutter is configured to tilt and/or move radially with respect to the catheter upon translation.

An atherectomy catheter device includes an elongate body, a drive shaft extending proximally to distally within the elongate body, and a cutter attached to the drive shaft. The cutter includes a serrated annular cutting edge formed on a distal edge of the cutter and a recessed bowl extending radially inwards from the annular cutting edge to a center of the cutter. The recessed bowl has a first curvature. The cutter further includes a plurality of grinding segments extending inwardly from the distal edge within the bowl. Each of the plurality of segments has a second curvature that is different from the first curvature.

The present disclosure is directed to a device. The device may include a distal shaft defining a central lumen and an orienting element comprising at least one inflatable member. Wherein a first portion of the orienting element extending from the shaft in a first direction and a second portion of the orienting element extending from the shaft in a second direction. Further, wherein the second direction is substantially opposite the first direction.

An apparatus for treating a lesion in a vasculature has a catheter shaft (12) with a plurality of openings (16), which may be axially spaced. One or more cutters (18,18′) are adapted for moving from a retraced position to a deployed position projecting from one of the plurality of openings for cutting the lesion, such as by being biased toward the opening and retracting upon engaging a leading edge thereof when the support is advanced proximally. A shaft forming part of the catheter may include a plurality of lateral openings and a plurality of cutters. The cutter(s) may be attached to a support adapted for moving independently within the shaft from a first position in which the cutter(s) move to a deployed position to project from a corresponding one of the plurality of openings for cutting the lesion. Related methods are also disclosed.

A catheter having a tubular body and a rotatable shaft disposed within a lumen of the tubular body. A cutting element is coupled to the rotatable shaft, the cutting element having a cutting edge, the cutting element and rotatable shaft being longitudinally moveable within the tubular body between a stored position in which the cutting element is parallel a longitudinal axis of the tubular body and a cutting position in which the cutting element is deflected between the proximal and distal ends of the tubular body to extend beyond an outer diameter of the tubular body. The cutting element is configured to cut material from the wall of a vessel at a treatment site as the catheter is pushed distally through the treatment site. The catheter includes a collection chamber positioned proximally of the cutting window.

A transseptal needle or punch. The transseptal punch includes a stylet with a tube with a side window and a cutting wire disposed within the tube, with a sharp cutting segment disposed proximate the window. The sharp cutting segment can be expanded radially outwardly from the window by translation of the cutting wire proximal end within the tube.