A catheter assembly including a reinforcement structure and a catheter disposed over the reinforcement structure. The reinforcement structure includes a first outer wall reinforcement portion, a second outer wall reinforcement portion, and a septum reinforcement portion connecting the first outer wall reinforcement portion to the second outer wall reinforcement portion. The catheter includes a catheter outer wall and a catheter septum. The first outer wall reinforcement portion and the second outer wall reinforcement portion can be positioned at least partially in the catheter outer wall, and the septum reinforcement portion can be enveloped by the catheter septum. The catheter assembly can also include an outer tube disposed over the catheter and the reinforcement structure.

A septal cross system is provided for a cerclage procedure for treating dysfunctional heart. The cerclage septal cross system includes a puncture catheter and a capture catheter. The puncture catheter a puncture catheter comprises a first lumen for a guidewire to be inserted thereinto. A coil element is arranged in the distal portion of the puncture catheter. The distal end of the pull-wire is attached to the distal portion of the coil element. The proximal end of the pull-wire is extended to the distal portion of the puncture catheter. The pull-wire is configured to bend inwardly the distal portion of the puncture catheter. A capture catheter comprises a first lumen for a first guidewire to be inserted thereinto and a second lumen for a second guidewire to be inserted thereinto. The distal end of the second wire has a snare wherein the distal portion is deflectable.

A catheter comprising an elongated body (12) defining one or more lumens (40,42), and the elongated body comprises a sidewall defining a side opening (14) in fluid communication with a lumen of the one or more lumens. The side opening has a proximal end (14A), a distal end (14B), a first side (34) extending from the proximal end to the distal end, and a second side (36) opposing the first side and extending from the proximal end to the distal end. When the elongated body is straight, the first and second sides curve towards each other between the proximal and distal ends, e.g., to define a biconcave shape.

The invention pertains to a medical device: an ECMO (extracorporeal membrane oxygenation) catheter which can be used during right heart and lung failure. It pertains to a dual lumen catheter with a single port of entry which when in place bypasses the right heart and lungs while completing the veno-arterial circuit.

A catheter includes: a body comprising a body side wall, a proximal end and a distal end; a septum extending from the proximal end to the distal end; a first lumen and a second lumen separated by the septum, each lumen forming a mouth at the distal end; first and second slots formed in a portion of the body side wall at the distal end and in fluid communication with the first and second lumens respectively. The first and second slots extend linearly along a direction parallel to a longitudinal axis of the body. The distal end of the body and the septum terminate in a plane perpendicular to the longitudinal axis. The distal end of the body has a substantially round cross section, while the first and second lumens each have a substantially D-shaped cross-section at the distal end. The two slots each have a width that is between 30% and 60% of a longer dimension of the D-shaped cross-section of a corresponding lumen.

A device for perfusing a coronary sinus of a subject's heart which may include: a double-lumen catheter including: a first lumen having: a proximal opening, and a distal opening configured to be positioned in a coronary sinus of a subject's heart; and a second lumen parallel to the first lumen, the second lumen having: a proximal opening, and a distal opening being offset from the distal opening of the first lumen towards the proximal opening of the second lumen in a longitudinal direction, the distal opening of the second lumen being configured to be positioned in a right atrium of the subject's heart; and an oxygenator connected to the proximal openings of the first lumen and the second lumen, the oxygenator is configured to oxygenate deoxygenated blood.

In a multiple-lumen catheter having multiple guidewires for treatment of vascular blockages, the catheter comprising a proximal-end assembly, a distal-end portion and a multi-lumen medial portion therebetween, the improvement wherein: (1) the multiple guidewires are preloaded in the catheter, each guidewire in its own single-guidewire lumen extending from its own guidewire entry port in the proximal-end assembly to a lumen convergence portion; and (2) the distal-end portion includes: (a) the lumen convergence portion along which the multiple lumens merge into a single output lumen sized to match the largest-diameter lumen of the multiple lumens, (b) an intermediate distal-end section connected to the lumen convergence portion and surrounding the single output lumen continuing therethrough, and (c) a tapered tip surrounding the single output lumen continuing therethrough.

A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body.

A dual-lumen injection catheter is equipped with a distal balloon featuring one or more fenestration or openings on the distal portion thereof. This allows injection of contrast agent in parallel to the injection of embolic agent and better control over the delivery of the therapeutic agent for cancer treatments, bleeding or other purposes.

An improved bi-directional steerable catheter is provided. The catheter generally comprises a catheter body, tip section and control handle. The catheter further comprises first and second puller wires extending from the control handle, through the catheter body and into the tip section. The control handle has deflection means for each puller wire that include a gear, and a carrier to which the proximal end of a puller wire is anchored. The gear is rotatably coupled to a lever controlled by an operator and the gear engages the carrier such that rotation of the gear by the lever results in longitudinal movement of the carrier, which results in deflection of the tip section.