An indwelling device for embolization comprises a coil portion (11) having a proximal side and a distal side and having a lumen extending in a longitudinal direction, a stretch-resistant member (20) disposed in the lumen, wherein the indwelling device has a fixing structure in which the stretch-resistant member (20) is knotted to the detachable portion attached in the lumen of a proximal end part of the coil portion (11) and extending proximally from a proximal end of the lumen, in order for the stretch-resistant member (20) to be more securely anchored to the coil portion (11).

Embolic coils with detachable segments that are separated by detachment capsules that are thermolytically degradable such that varying lengths of coil may be implanted into a vascular malformation to occlude same. The capsules are radiotransparent when compared to the adjoining coil segments to the location of the segments is easily seen. The capsules further include protruding electrical contacts that make positive contact with terminals on a delivery catheter. The terminals on the delivery catheter serve as markers so the relationship between the detachment capsules and the terminals is easily visible under x-ray.

A catheter with one or more heated or detachable sections is described. The catheter may be useful for liquid embolic delivery, where the heated or detachable sections may help free the catheter when stuck to liquid embolic during delivery. An instrumented catheter is also described.

A vascular cage comprises a self-expandable frame including a plurality of elongated flexible bands. The frame is configured to transition between a compressed configuration and an expanded configuration. The expanded frame may form a three-dimensional cage configured to surround an interior volume as the frame is deployed. At least some of the plurality of bands may have a substantially rectangular cross-section.

Consistent with disclosed embodiments, systems, devices, methods, and computer readable media for monitoring and facilitating endovascular coil delivery may be provided. Embodiments may include obtaining a first input from a coil movement sensor associated with an endovascular coil within a lumen of a catheter positioned within a body. The catheter may include a coil partitioning mechanism configured to sever the endovascular coil. Embodiments may further include obtaining a second input to activate the coil partitioning mechanism. Embodiments may further include activating, in response to the second input, the coil partitioning mechanism to sever the endovascular coil into a first coil section for delivery and a residual second coil section. Embodiments may further include determining, based on at least the first input and the second input, a length of the second coil section and outputting a signal based on the determined length of the second coil section.

An apparatus for treating an aneurysm includes an occlusion element configured to be releasably coupled to an elongate delivery shaft and having a distal end, a proximal end, and a longitudinal axis extending between the distal end and the proximal end, the occlusion element configured to be delivered in a collapsed configuration and further configured to expand to an expanded configuration, the occlusion element comprising an inverted mesh tube having an outer layer and an inner layer, the outer layer transitioning to the inner layer at an inversion fold located at or adjacent the distal end of the occlusion element, the inversion fold defining an inner diameter, the occlusion element further comprising a maximum outer diameter, wherein the inner diameter is between about 35% to about 85% of the maximum outer diameter, and wherein an outer diameter of the occlusion element increases along the longitudinal axis to the maximum outer diameter.

An endovascular device, including an elongated flexible sheath defining a lumen with an inner opening sized for enabling selective advancement of an endovascular instrument therethrough, the sheath having at least a first region and a second region; an electrode within the first region of the sheath; and a constrictor associated with the first region of the sheath, the constrictor being configured, while at least the first region and the second region of the sheath are positioned within a body and in response to an input received from outside the body, to reversibly narrow the lumen of the sheath in an area adjacent the electrode to thereby bring the electrode into contact with an adjacent portion of the endovascular instrument.

An endovascular apparatus, including an elongated catheter having an inner lumen extending therethrough; a balloon affixed to the catheter for expansion into the inner lumen of the catheter when the balloon is inflated; and a tube secured relative to the balloon, wherein the tube is configured to enable selective inflation and deflation of the balloon, and wherein an outer diameter of a portion of the catheter adjacent the balloon is substantially the same when the balloon is inflated and when the balloon is deflated.

Consistent with disclosed embodiments, systems, devices, methods, and computer readable media for delivery of an endovascular instrument to a treatment site within a body may be provided. Embodiments may include a flexible, elongated sheath having a proximal end and a distal end. An embodiment may further include an inner wall of the sheath delimiting an inner lumen which may extend between the proximal end and the distal end of the sheath. The inner lumen may be sized to enable axial advancement of the endovascular instrument therethrough. The embodiments may also include at least one electrode within the distal section of the sheath. The electrode may be configured to selectively deliver an electric current through a segment of the endovascular instrument within the inner lumen.

An endovascular device, including an elongated flexible sheath defining a lumen with an inner opening sized for enabling selective advancement of an endovascular instrument therethrough, the sheath having at least a first region and a second region; an electrode within the first region of the sheath; and a constrictor associated with the first region of the sheath, the constrictor being configured, while at least the first region and the second region of the sheath are positioned within a body and in response to an input received from outside the body, to reversibly narrow the lumen of the sheath in an area adjacent the electrode to thereby bring the electrode into contact with an adjacent portion of the endovascular instrument.