An indwelling catheter with an integrated coil section is disclosed. The coil section, in use, is disposed outside of the urethra and can stretch and bend to accommodate various activities of a user by reducing frictional forces and trauma within the urethra. This improved catheter design results in an increase in range of motion and a decrease in pain for the user.

A device for intravascular intervention can comprise an intervention element, an elongate manipulation member, and a joining element. The elongate element can comprise a hooked portion extending about a proximal portion of the intervention element. The hooked portion can comprise a bend. The hooked portion can have (i) no substantial surface crack at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch. The joining element can substantially permanently attach the hooked portion to the intervention element.

A neurovascular access catheter can comprise an elongate, flexible tubular body. The tubular body can comprise a proximal end, a distal end, and a side wall at least partially defining a central lumen. The central lumen can extend axially through the side wall. The tubular body can include a distal microcatheter segment that extends proximally from the distal end. The tubular body can include a proximal shaft that extends distally from the proximal end. The tubular body can include a tapered dilator segment being positioned in between the distal microcatheter segment and the proximal shaft segment.

Intrasaccular flow diverter including: an interior fill braid physically inverted over itself forming a proximal inverted end and an opposite free end; and a dome braid disposed distally of and secured to the interior fill braid. Subject to application of an external mechanical force, the dome braid is transitionable between an expanded state and a compressed state. The dome braid has a proximal end with an opening defined therein through which starting at the free end the interior fill braid is passable therethrough exerting a radially outward force on the dome braid. A delivery wire is releasably detachable from the proximal inverted end of the interior fill braid. The dome braid has a stiffer profile relative to that of the interior fill braid to maintain in position within the aneurysm the dome braid as the interior fill braid is advanced therein.

The present invention discloses a microcatheter, with tubular structure, comprising a catheter body, a sharp portion disposed at a distal end of the catheter body, the catheter body comprises: a inner layer with a hollow lumen; a tubular intermediate layer wrapped outside the inner layer, comprising a spring layer and a braid above the spring layer, the braid extending longitudinally along a part of the spring layer; and a tubular outer layer, wrapped outside the intermediate layer; the part of the spring layer which is not wrapped by the braid is bent at a certain angle along a longitudinal axis of the catheter body. The catheter body of the microcatheter of the invention is configured to have a multilayered structure, and the braid is only wrapped on spring layer near to the proximal end; the part of the spring layer not wrapped by the braid can be bent at a corresponding angle to adapt to an angle between the main branch and the branch of the coronary artery, to make sure that the microcatheter can reach the bifurcation lesions of the coronary artery.

The catheter canal is a medical device. The catheter canal is configured for use with a guiding catheter or guide sheath. The catheter canal forms a canal that controls and eliminates potentially undesirable movement of a catheter, wire, stent, balloon or any other over the wire instrument as it is inserted into a patient. The catheter canal includes a guiding structure, a plurality of flexible structures, and an adhesive structure. The plurality of flexible structures and the adhesive structure attaches to the guiding structure. The plurality of flexible structures form a framework that creates the canal that controls and limits potentially undesirable movement of the catheter, wire, stent, balloon or any other over the wire instrument.

A pre-curved catheter tube of a catheter assembly or other elongate medical device and methods for forming such a device using a heating procedure is disclosed. Pre-curving of the catheter tube is desirable to impart to the catheter assembly a desired positional configuration when the catheter assembly is inserted into a patient. The heating procedure may include heat sterilization procedures commonly used to sterilize medical devices prior to use. One method for curving a catheter tube of a catheter assembly includes constraining the catheter tube into a curved configuration using the tube constraint, heating the catheter tube in the curved configuration for a predetermined time at a predetermined temperature, and releasing the catheter tube from the tube constraint after the heating is complete.

The invention describes catheter systems and methods for accessing the brain during endovascular/neurointervention procedures in the treatment of ischemic stroke. More specifically, a catheter system having a deployable redirection device (RD) is described that improves the process of accessing a clot in a patient with acute ischemic stroke due to large vessel occlusion.

The invention provides a filter assembly including a string or wire such that a lasso type cincture is effected, said filter being openable and closeable while in deployed within a bodily vessel. A string lengthen or shorting adjustment mechanism, such as a ratchet or reel allows more length of string into the device or alternatively to shorten the length of available string in the system. The described invention, when used to ameliorate venous clots and most arterio-venous dialysis grafts, a filter-tipped aspirator is used downstream from the clot to capture and remove dislocated emboli. A method of using same is disclosed.

The present invention relates to comprehensive systems, devices and methods for delivering energy to tissue for a wide variety of applications, including medical procedures (e.g., tissue ablation, resection, cautery, vascular thrombosis, treatment of cardiac arrhythmias and dysrhythmias, electrosurgery, tissue harvest, etc.). In certain embodiments, systems, devices, and methods are provided for delivering energy to difficult to access tissue regions (e.g. peripheral lung tissues), and/or reducing the amount of undesired heat given off during energy delivery.