A catheter system is disclosed. A catheter system comprises a catheter module and a magnetic robot, which can be coupled to the catheter module, wherein: the catheter module comprises a catheter having an accommodation space formed on the front end thereof, and a rotational magnet that is rotatable; and the magnetic robot comprises a body and a magnet member, which is coupled to the body and induces magnetism with the rotational magnet.

An atherectomy system includes a drive assembly and an advancer assembly. The drive assembly, which may be reusable, includes a drive motor having an output shaft and a first coupler segment that is secured relative to the output shaft. A controller may be adapted to regulate operation of the drive motor. The advancer assembly, which may be single use, includes a flexible drive cable that is adapted to be releasably securable to the first coupler segment. The advancer assembly includes gearing that is secured within the advancer assembly and is operably coupled with the flexible drive cable. A burr catheter is coupled with and extends distally of the gearing. The advancer assembly is adapted to enable relative translation of the burr catheter in order to advance and withdraw an atherectomy burr rotatably secured to a distal end of the burr catheter.

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters.

An atherectomy device (100) for removing occlusive material from the vasculature of a subject includes a sheath (116) and a drive shaft (216) disposed within the sheath. The drive shaft (216) couples to a cutting element (118). The drive shaft (216) is rotatable relative to the sheath (116) to rotate the cutting element (118). The drive shaft (216) and the sheath (116) define therebetween a material removal passageway (218) for receiving the occlusive material. The drive shaft (216) includes a coil (504) having an inner lumen (512). A jacket (516) is disposed outwardly of the coil (504), and the jacket (516) inhibits the occlusive material in the material removal passageway (218) from passing through the coil and entering the inner lumen (512).

A catheter system includes a shaft main body including an elongated hollow outer tube and an inner tube accommodated in the inside of the elongated hollow outer tube. The hollow inside of the inner tube is suctioned from the proximal end side thereof. The outer tube has an opening formed in a circumferential surface thereof and an attaching portion provided therein on the distal end side with respect to the opening. The inner tube can move in an axial direction with respect to the outer tube, and at least a distal end side end portion thereof can move back and forth between a proximal end side position with respect to the opening and the attaching portion. The inner tube has a cutting unit provided in the hollow inside of the distal end side end portion thereof and is capable of attaching to the attaching portion

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen.

A device suitable for removing material from a living being is provided, featuring at least an aspiration pump, powered by a motor. The aspiration pump and any optional infusate pump preferably feature a helical pumping mechanism, and operate at a high rate of rotation, thereby ensuring adequate pumping performance and flexibility. The helical pumping mechanism may be a helical coiled wire about a central core tube. The helical coil wire, whether together with, or independent of, the core tube, may be rotated to cause a pumping action. Additionally, a narrow crossing profile is maintained, ensuring that the device may reach more tortuous regions of the vasculature. In one embodiment, the system comprises a wire-guided mono-rail catheter with a working head mounted on a flexible portion of the catheter that can laterally displace away from the guide wire to facilitate thrombus removal. The working head may be operated to separate and move away from the guide wire to come within a closer proximity of the obstructive material to more effectively remove it from the vessel.

The invention refers to a catheter (51) for aspiration, fragmentation and removal of removable material from blood vessels. The catheter (51) comprises a flexible tube (52), a flexible helical transport screw (62) inside of the flexible tube (52), a stopper element (82) for providing an abutment for the distal end (64) of the flexible helical transport screw (62). The stopper element (82) is provided spaced from the distal end of the catheter (51), thereby defining a distal region (56) of the catheter (51) extending from the stopper element (82) in direction to the distal end of the catheter (51) which is free of rotational elements inside. A suction opening (74) for aspiration of the removable material into the inside of the flexible tube (52) is provided in the distal region (56) of the catheter (51).

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.

An endoscope for removing tissue at a surgical site includes an elongated tubular body insertable within a mammalian cavity of a patient. An instrument channel extends between a first opening at a distal end and a second opening at a proximal end of the tubular body and is sized and configured to receive a surgical cutting assembly that includes an aspiration channel configured to remove material entering the endoscope via a distal end of the surgical cutting assembly. A torque generation component configured to generate torque is positioned within the distal end and configured to provide the generated torque to a coupling component. The coupling component is positioned at the distal end of the elongated tubular member and configured to actuate a cutting component of the surgical cutting assembly responsive to actuation of the torque generation component.