A catheter assembly comprises a catheter including a longitudinally extending wall with inner and outer surfaces. The inner surface of the wall defines a bore extending longitudinally through the catheter and at least partially defines a first lumen in the bore and a laterally adjacent second lumen in the bore. At least one of the first and second lumens communicates with an opening in the outer surface of the wall at a distal end of the catheter. An elongated separator includes a longitudinally extending surface that at least partially defines the second lumen. The longitudinally extending surface of the separator is disposed asymmetrically relative to the bore when viewed in cross-section taken transverse to the longitudinal extent of the separator adjacent to a distal end of the separator. At least a portion of the separator is movable relative to the bore and the inner surface of the catheter wall.

The invention relates to a positioning device (1) comprising a distal part (8) that is adapted to be delivered through a defect, preferably an opening in a ventricular or atrial septum. It comprises a mechanism to selectively expand the distal part (8), such that before expansion, it can be deployed through said defect, and upon expansion, is mechanically prevented from being retracted through the same defect. Thus, the positioning device (1) is temporarily engaged at the defect site.

A catheter system is provided that reduces the risk of catheter-associated urinary tract infections by preventing bacteria near the urethral opening from being carried by the catheter during insertion, and by allowing cycling (filling and emptying) of the bladder. The system includes a main lumen, and a balloon near a distal end thereof that is inflatable, after insertion, to open an eyelet to the main lumen that allows urine to flow from the bladder into the main lumen. A catheter system with two balloons, e.g., a retention and an actuation balloon, is also provided herein. An access port at a proximal end has a resting configuration that closes the proximal end of main lumen to prevent drainage of urine through the main lumen. An access cap is provided that, when installed in the access port, opens the access port to allow urine to flow therethrough.

A neurovascular catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A distal zone of the tubular body includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, an outer jacket surrounding the helical coil, and an opening at the distal end. Adjacent windings of the helical coil are spaced progressively further apart in the distal direction. The opening at the distal end of the tubular body is enlargeable from a first inside diameter for transluminal navigation to a second, larger inside diameter to facilitate aspiration of thrombus into the lumen.

A catheter assembly 10 comprises a catheter 12 including a longitudinally extending wall 16 with inner and outer surfaces. The inner surface of the wall defines a bore 22 extending longitudinally through the catheter defining a first lumen 52 and a second lumen 54. At least one of the first and second lumens communicates with an opening in the outer surface of the wall at a distal end of the catheter. An elongated separator 14 includes a longitudinally extending surface that at least partially defines the second lumen. The longitudinally extending surface of the separator is disposed asymmetrically relative to the bore when viewed in cross-section taken transverse to the longitudinal extent of the separator adjacent to a distal end of the separator. At least a portion of the separator is movable relative to the bore and the inner surface of the catheter wall.

A method includes disposing a lumen-defining device within a portion of a vein of a patient. A support member is inserted into a lumen of the lumen-defining device and advanced through at least a portion of the lumen of the lumen-defining device. At least a portion of the lumen-defining device is supported via the support member such that the support member limits complete occlusion of the lumen in response to a force exerted on the lumen-defining device. A volume of bodily fluid is withdrawn from the patient via the lumen-defining device when the support member is disposed in the lumen-defining device.

A urinary catheter drainage member (410), comprising: a body (417) having a proximal end, a distal end and a lumen extending therethrough, the proximal end being configured to be located at the distal end of a catheter such that the lumen of the body is in fluid communication with a drainage lumen of the catheter, the distal end of the body defining an opening for urine drainage; the body being configured to selectively restrict urine drainage from the opening

Devices used to deliver a substance within a patient's body are disclosed. The devices may include a microcatheter configured to deliver the substance to a targeted site. The microcatheter may include an expandable member to temporarily restrict blood flow in a vessel, a flow restriction member to restrict flow of material out a distal end of the microcatheter, and a port disposed proximal of the expandable member.

A balloon catheter having an elongated catheter shaft defining a fluid drainage lumen and a balloon inflation lumen. The balloon catheter includes a fluid drainage port disposed about the distal end of the catheter shaft in fluid communication with the fluid drainage lumen, and a balloon inflation port disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation lumen. A balloon portion is disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation port. A release device is disposed in fluid communication with the balloon portion and the fluid drainage lumen, and includes an activating member. A tether is attached to the activating member of the release device. Tension applied to the tether activates the release device, enabling fluid flow from the balloon portion into the fluid drainage lumen and out of the body.

A balloon catheter which allows for faster preparation and more effective purging of air within the catheter, while also providing a more space efficient design, wherein the balloon catheter includes a tubular outer member and a tubular inner member disposed in the lumen of the outer member such that the outer member and inner member define an annular fluid path between them. A balloon is secured to and circumferentially surrounds an outer surface of the distal portion of the outer member. A tubular seal is disposed circumferentially around the inner surface of the distal portion of the outer member. The inner member is movable longitudinally relative to the outer member from a non-sealing position in which the annular fluid path is open, and a sealing position in which the distal portion of the inner member contacts the seal thereby sealing the annular fluid path at the seal.