A catheter includes a hollow shaft, a mesh member, a front end tip, and a core wire. The mesh member has a tubular shape, has a base end joined to a front end of the hollow shaft, and is configured to expand and contract in a radial direction. The front end tip is joined to a front end of the mesh member. The core wire has a front end portion joined to the front end tip and extends inside the mesh member and inside the hollow shaft. A base end of the core wire is located on a base end side of the catheter relative to a base end of the hollow shaft. The front end portion of the core wire is formed with one or more holes, and a portion of the front end tip is disposed inside at least a portion of the one or more holes.

A clot retrieval device is provided. The clot retrieval device includes a capturing basket having an opening at a proximal end where the capturing basket is deployable downstream from a clot in a blood vessel. The capturing basket is configured to surround a portion of the clot and the opening in the proximal end of the capturing basket is configured to reduce in size such that the capturing basket conforms around the portion of the clot and be retrieved after the capturing basket conforms around the portion of the clot.

An extravascular system is provided which includes a catheter adapter having a blood control septum configured to control flow of a fluid through the catheter adapter, the catheter adapter further having a catheter configured for intravenous insertion. The extravascular system further includes a septum activator slidably inserted within the catheter adapter and configured for advancement through the blood control septum to provide a fluid pathway through the blood control septum. Further still, the extravascular system includes an external safety mechanism comprising a needle hub and a needle shield interconnected via a tether, wherein the needle shield includes a safety clip that is configured to retain a sharpened end of the introducer needle within the needle shield. Some implementations further comprise an access port forming a portion of the catheter adapter and providing selective access to the lumen of the catheter adapter.

Aspects of the disclosure relate to medical catheters, including electrophysiological catheters, comprising a catheter maintaining at least one electrode including a plurality of electrode segments. The catheter can include a plurality of slots in which the electrodes can be secured so that the electrodes are at least partially positioned within a center lumen of the catheter. Methods of manufacturing medical catheters are also disclosed. In various methods of assembling a catheter, a hollow, tubular catheter made of a compliant material having a very small, micro or nano outside diameter is provided. Then, the slots are formed in the catheter and the electrode segments are positioned within the slots.

An intravascular heart pump assembly can include a rotor with at least one impeller blade, and a cannula. The present application describes various cannulas that can be manufactured from multiple layers of material to improve flexibility, manufacturability, and durability without increasing an outer diameter of the cannula. In one embodiment, the cannula includes an inflow section having a sheet formed of a shape memory material embedded within a polymer and having at least one lateral hole or aperture in the inflow section. The at least one lateral hole is defined by a first hole in the sheet and a second hole in the outer polymer layer of the cannula. The first hole and the second hole overlap so that blood can enter the cannula through the holes.

A catheter having a catheter body with a lumen and a distal lumen opening. The catheter's lumen extends through the catheter body along a longitudinal axis of the catheter body. A hole is formed through a wall of a distal portion of the catheter body. A portion of the proximal surface of the hole is inclined at an acute angle with respect to the longitudinal axis of the catheter body. The acute angle of the proximal hole surface opens proximally with respect to the catheter body.

An infusion catheter system may deliver a therapeutic agent to a desired location in the body. The system may include an elongate catheter shaft having a proximal end region, a distal end region, a distal opening, and a lumen extending between the proximal end region and distal opening. The distal end region may include a coiled portion having a preformed coiled configuration including a plurality of helically wound rings. A plurality of apertures may be formed through a sidewall of the coiled portion. A guidewire may be configured to be slidably disposed within the lumen of the catheter shaft. The guidewire may include a proximal end region having a first cross-sectional dimension, an enlarged distal end region having a second cross sectional dimension greater than the first cross-sectional dimension, and an intermediate region disposed between the proximal end region and the distal end region.

A catheter or shaft, such as a distal access support or aspiration catheter, is provided that is configured to be advanced at least partially within a patient. The catheter or shaft may include a flexible and hollow shaft including a proximal end and a distal end. The flexible and hollow shaft may include a slotted portion with a plurality of slotted openings, the slotted portion including a first segment with a first pattern of slotted openings and a second segment extending proximally relative the first segment with a second pattern of slotted openings different from the first pattern.

A balloon catheter has an outer shaft which surrounds a shaft lumen. The outer shaft has a proximal outer shaft portion connected to a distal outer shaft portion. An inner shaft is in a distal portion of the shaft lumen. A guide wire lumen is in the inner shaft. An opening at a proximal end portion of the inner shaft permits the guide wire to be guided out from the outer shaft. A metallic tube is in the shaft lumen. The proximal end portion of the inner shaft is engaged with the metallic tube. A separate, elongate and metallic stiffening element is in the shaft lumen, and is connected to the metallic tube and protrudes from the metallic tube into the distal portion of the shaft lumen and into the proximal portion of the shaft lumen to stiffen portions of the outer shaft.

An intravascular heart pump assembly can include a rotor with at least one impeller blade, and a cannula. The present application describes various cannulas that can be manufactured from multiple layers of material to improve flexibility, manufacturability, and durability without increasing an outer diameter of the cannula. In one embodiment, the cannula includes an inflow section having a sheet formed of a shape memory material embedded within a polymer and having at least one lateral hole or aperture in the inflow section. The at least one lateral hole is defined by a first hole in the sheet and a second hole in the outer polymer layer of the cannula. The first hole and the second hole overlap so that blood can enter the cannula through the holes.