An occlusive device, occlusive device delivery system, method of using, and method of delivering an occlusive device, and method of making an occlusive device to treat various intravascular conditions is described.

An endovascular surgical tool includes a flexible, electrically-conductive corewire, a return conductor, a resistive heating element attached to the distal end of the corewire, and a therapeutic payload attached to the loop of the resistive heating element by a coil connecting member. The corewire includes at least one segment at its distal end which transitions from the substantially uniform cross-section of its proximal end to a smaller distal cross-section. The return conductor is electrically insulated from and bonded to the corewire. The resistive heating element includes a first terminal electrically connected to the corewire, a second terminal electrically connected to the return conductor, a helical coil, and a loop. The helical coil and the loop are electrically in series between the first terminal and the second terminal. The coil connecting member has a release temperature lower than a loop melting temperature of the loop of the resistive heating element.

A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.

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.

The present disclosure relates to a self-expanding braided implant, including a distal implant end and a proximal implant end, the braided implant being invertible about the distal implant end. Translation of the braided implant distally causes the braided implant to invert and fold into itself thereby forming an occlusive sack configured to occlude the aneurysm.

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.

An apparatus for treating an aneurysm in a blood vessel includes an occlusion element including a first tubular mesh having a first end and a second end coupled together at a proximal end of the occlusion element such that an intermediate portion of the first tubular mesh between the first end and the second end includes a substantially 180 degree turn, the intermediate portion of the first tubular mesh extending distally from the proximal end of the occlusion element, wherein the intermediate portion of the first tubular mesh has a collapsed configuration and is configured to expand to an expanded. In some embodiments, the apparatus further includes a second tubular mesh having a first end and a second end coupled to the proximal end of the occlusion element such that an intermediate portion of the second tubular mesh between the first end and the second end includes a substantially 180 degree turn. In some embodiments, the apparatus further comprises a cover coupled to the proximal end of the occlusion element.

An intracorporeal space filling device and a delivery system and method for using the device is disclosed. The space filling device is preferably configured for percutaneous delivery from a peripheral conduit of a patient. The space filling device has an elongated tubular or interconnected bead structure which may have a transmutable material disposed within it. The transmutable material can be altered from a non-rigid state to a rigid state by the application of various types of energy or by other suitable means. The space filling device can be positioned by a delivery system and detached from the delivery system after desired positioning is achieved.

A vasculature occlusion device detachment system including a heating element of a predetermined resistivity. A coil securing suture terminates in a proximal bead retained within the heating element while the distal end of the coil securing suture extends beyond the distal end of the heating element and is attached to the proximal end of the vasculature occlusion device. The coil securing suture is independently rotatable of the heating element 360 degrees about a longitudinal axis extending therethrough the heating element. A power source applies electrical current to the heating element via an electrically conductive corewire and separate insulated electrically conductive wire to increase its resistance and, as a result of the heat produced, sever the coil securing suture.

A flow-diverting implant includes a saddle-shaped braided mesh diverter that is sized to provide adequate blocking coverage of a neck of an aneurysm. The diverter is anchored using minimally profiled, generally circular anchors that present little to no resistance to blood flow and are unlikely to create thrombosis. A locator extends into the aneurysm to ensure the diverter is optimally positioned over the neck of the aneurysm.