Removable catheter cap, and applications thereof, for delivering medical tubes in bodily passages. Removable catheter cap covers flexible medical tube (e.g., catheter) distal tip during delivery in a body lumen. Catheter cap includes: cap body removably connectable to, for capping, catheter distal tip, and transformable into a predefined constituent part freely passable through catheter lumen; and cap releasing member extending through catheter proximal end when catheter cap is connected to the catheter, and manipulatable for transforming cap body into constituent part or/and for withdrawing constituent part from catheter distal tip through catheter lumen. Exemplary applications are: provision of a catheter assembly including a catheter and the removable catheter cap connected thereto; a medical kit including one or more catheters and one or more correspondingly configured removable catheter caps; and a method for delivering a catheter in a blood vessel of a subject, for example, via an over-the-wire technique.

An apparatus and method use a catheter for specific and discriminate treatment of central nervous system disease. With the catheter, selective hypothermia to the brain and/or the spinal cord for injury protection can be achieved without the need for systemic cooling. The catheter is also capable of draining excess cerebrospinal fluid.

A percutaneous catheter for blood removal includes a catheter tube extending in an axial direction with a plurality of distal side holes provided on a distal end part of the catheter tube and communicating a lumen of the catheter with an outside of the catheter tube. The plurality of distal side holes is spirally arranged in the axial direction of the catheter tube, and at least one distal side hole at the proximal end side of the spirally arranged side holes is formed to have a diameter smaller than a diameter of a distal side hole at the distal end side of the spirally arranged side holes.

A catheter system insertable into a living body to convey blood has a catheter tube and a stylet. The catheter tube has an expansion portion, a shaft portion, and a lumen. The stylet includes an outer peripheral member that extends in an axial direction and has an outer diameter the same as an inner diameter of the shaft portion, an inner peripheral member provided with an exposed portion exposed from a distal end of the outer peripheral member and provided on an inner periphery of the outer peripheral member so as to be slidable with respect to the outer peripheral member, and a fitting stopper into which a fitting member on an outer periphery of a proximal end of the outer peripheral member is fittable. A region is formed in the fitting stopper in which the outer peripheral member and the fitting member are movable.

An arterial cannula for ECMO includes a main arterial cannula with an inner wall and having a first end with a blood outflow port. The first end is intended to be introduced into an artery so as to inject the blood retrogradely into the artery. A retro-perfusion cannula is configured to be translatably movable between a retracted position in the first end of the main arterial cannula and a deployed position at least partly outside the main arterial cannula and opposite the blood outflow port of the main arterial cannula.

Catheter and catheter assemblies for extracorporeal circulation of body fluids, such as blood, are described. A catheter includes a septum that divides an internal lumen into fluidicly isolated drainage and infusion lumens. The infusion lumen extends along only a portion of the axial length of the catheter and terminates at an infusion opening defined by the circumferential wall of the elongate member of the catheter. The drainage lumen extends the full axial length of the catheter and is laterally accessible via first and second sets of drainage openings.

A system and method for delivering a medicament including a catheter configured for implantation in different target tissue sites, extending from a proximal end to a distal end, and having a sidewall which defines an internal lumen. The distal end has one or more apertures in the sidewall for the release of the medicament into the target tissue site; the system also comprises a medicament reservoir fluidly communicable with the internal lumen of each catheter, an adhesive member configured to adhere to the skin of the patient around the exit wound and having an opening therein to allow the catheters to pass through the adhesive member and a retaining member configured to be overlaid on the adhesive member and comprising a guide surface configured to receive a length of the two or more catheters and a plurality of retaining portions to retain the catheters against the guide surface.

Cannulas for apical cannulation and methods of making and using the same are provided. The cannula includes a first elongated body defining a primary lumen, a second elongated body defining a first secondary lumen, a third elongated body defining a second secondary lumen, and a fourth elongated body defining a third secondary lumen. The primary lumen is configured to allow blood to flow therethrough. The first secondary lumen is configured to inflate an inflatable body, which is configured to engage an aortal wall proximate the aortic valve of the patient's heart to define a treatment space. The second secondary lumen is configured to selectively remove blood from the treatment space or introduce a cardioplegic solution into the treatment space. The third secondary lumen is configured to administer active decompression of the left ventricle of the patient's heart via suction.

A catheter for percutaneous cardiopulmonary support has a lumen through which blood flows to a living body. The catheter comprises a catheter tube including a tubular reinforcing body including a plurality of wires braided into a mesh shape and a resin layer provided so as to cover the reinforcing body. A plurality of side holes are formed at a distal end of the catheter tube to communicate the lumen with the outside of the catheter tube. The side holes allow the blood flowing through the lumen to flow out in a direction intersecting an axial direction of the catheter tube when the catheter tube is indwelled. The plurality of side holes preferably may be spirally arranged in a circumferential direction of the tube.

The wound drainage apparatus for drug-assisted removal of bodily fluids includes a double-lumen tubing member connected to a customizable branched tubing member for placement in a wound cavity. A perforated inner tube connected to an anticoagulant drug delivery pump and a solid outer tube connected to a fluid drainage vacuum make up the double-lumen tubing member. The branched tubing member includes a plurality of secondary wound cavity tubes branching away from a primary wound cavity tube. The apparatus disclosed herein improves upon current drainage systems by preventing occlusions produced by blood clots forming in fluid drainage tubes.