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.

A circuit system includes a user interface, voltage source, and a terminal bank connected to the voltage source. The circuit can be used in a powered catheter system where the catheter includes a structural reinforcement layer such as a braid comprised of one or more wires. The reinforcement layer can be used to convey a current or signal in a powered catheter. The catheter may utilize a hypotube element which provides integrated sensors in order to power and control multiple systems in the powered catheter.

A vascular embolization device includes a coil with a primary shape and an stretch resistant wire provided inside the coil, in which the stretch resistant wire is a multilayer strand including at least one core layer and at least one outer layer including one or more resin compositions and a biochemical active material, and the core layer is composed of a material with a tensile break strength higher than that of the outer layer. The vascular embolization device has the function of administering a biochemical active material and also has good flexibility.

Vaso-occlusive apparatuses, including implants, and methods of using them to treat aneurysms. The vaso-occlusive implants described herein include one or more soft and expandable braided member coupled to a pushable member such as a coil that maybe inserted and retrieved from within an aneurism using a delivery catheter as well as a friction element between the soft braided member and the coil. The friction element allows the relatively soft and elongate implant to be pushed out of a cannula without binding up within the cannula.

An endovascular surgical tool may include a flexible, electrically-conductive delivery tube, a return conductor, a resistive heating element attached to the distal end of the delivery tube, and a therapeutic payload attached to a loop of the resistive heating element by a coil connecting member. The delivery tube may include at least one segment at its distal end which includes a plurality of transverse slots. Each slot of the plurality of slots includes an origin on the perimeter of the delivery tube, a terminus closer to a central axis of the delivery tube than the origin, and a depth between the origin and terminus. The origins of at least two slots of the plurality of slots may be located at different angular positions relative to the central axis. The return conductor may be electrically insulated from and positioned within the delivery tube.

An implantable embolic device having a stretch-resistant member passing therethrough that also serves as a tether for connecting the device to a delivery system. The stretch-resistant member is attached at a proximal and distal end of the device and extends proximally to the delivery device. The proximal attachment point serves to isolate a distal, stretch resisting segment of the member from axial tension placed on a proximal, connecting section of the member. Thus, the portion of the stretch-resistant member being used to connect the embolic device to a delivery device may be placed under tension without placing tension or distorting the implant.

Disclosed herein are medical devices comprising a single-lobed, thin-walled, expandable body (“ballstent” or “blockstent”) and a flexible, elongated delivery device (“delivery catheter”) and systems and methods of use for treating saccular vascular aneurysms and methods of use for occluding segments of blood vessels and other biological conduits.

Expandable bodies comprising gold, platinum, or silver that can be compressed, positioned in the lumen of an aneurysm or blood vessel, and expanded to conform to the shape of the aneurysm or segment of blood vessel or biological conduit are disclosed. The external surface of the expandable bodies can be configured to promote local thrombosis and to promote the growth of tissue into and around the wall in order to reduce migration of the expandable body and to occlude and seal the aneurysm or biological conduit. The wall of the expandable bodies can also be configured to release drugs or pharmacologically active molecules, such as those that promote thrombosis, cell proliferation, extracellular matrix deposition, or tissue ingrowth.

Devices and methods for treatment of a patient's vasculature are described. The device includes a self-expanding resilient permeable shell having a radially constrained state and an expanded state with a globular, axially shortened configuration. The permeable shell may be a single layer of braided elongate filaments having first and second ends that are secured at the proximal end of the permeable shell. The devices may also include permeable shells made of woven braided mesh having a variable mesh density, i.e., the average size of pores in one region are a different than the average size of pores in another region. Methods of using the device to treat a cerebral aneurysm are also described. Methods of forming a tubular braid are also described. Methods of forming a tubular braid with variable braid densities are described. Methods of forming a tubular braid using a castellated mandrel are also described.

An occlusive device comprising a braided component which can be inserted into a blood vessel and a delivery system for delivering said occlusive device is described.

The present invention relates to an in vivo indwelling member which has a shape complicatedly curved in various directions and can easily spread inside an aneurysm, while adhering to an inner wall of the aneurysm to prevent falling off therefrom, improving an indwelling density, and maintaining good operability. Shapes of two or more three-dimensional portions (middle solid 4A, large solid 4B) are provided in a primary coil 11. Each three-dimensional portion is formed by continuously providing at least four curved parts (51a to 51e/52a to 52f) over four planes. Normal directions of the four planes each have a relationship perpendicular to a predetermined common axis (a1/a2) direction. Each of the at least four curved parts (51a to 51e/52a to 52f) is formed on any of the respective planes of a quadrangular virtual cylindrical body as seen from the common axis (a1/a2) surrounded by the four planes.