公开(公告)号：US20240180560A1

公开(公告)日：2024-06-06

申请号：US18530917

申请日：2023-12-06

Applicant: Cook Medical Technologies LLC

Inventor： Jens Kold ,  Jan Kristoffersen ,  Mikkel Kolding ,  Rana Al-tayar ,  Kim Møgelvang Jensen

IPC: A61B17/12

CPC classification number: A61B17/1214 ,  A61B17/12113 ,  A61B2017/00367 ,  A61B2017/12054

Abstract: An embolic coil delivery system includes a delivery shaft that defines a delivery shaft lumen and an embolic coil device that is detachably connected to a distal region of the delivery shaft. The embolic coil device includes coil windings that define a coil lumen. A pull wire is positioned at least partially within the delivery shaft lumen and at least partially within the coil lumen. The pull wire includes a frangible segment that is positioned within the coil lumen. The frangible segment of the pull wire defines a predictable region of separation of the pull wire in response to tensile force so as to detach said embolic coil device from said delivery shaft.

公开(公告)号：US20230404589A1

公开(公告)日：2023-12-21

申请号：US18338819

申请日：2023-06-21

Applicant: Cook Medical Technologies LLC

Inventor： Jan Kristoffersen ,  Jens Kold ,  Louise Thrysøe Ekstrom ,  Kim Møgelvang Jensen ,  Betina Hansen ,  Benjamin Christian Waedeled ,  Anders Daniel Hviid Jakobsen

IPC: A61B17/12

CPC classification number: A61B17/12154 ,  A61B17/12113 ,  A61B2017/12054

Abstract: Described are systems for delivering embolic coil devices, and components useful in such systems. The systems include a flexible elongate delivery shaft having a distal region and an embolic coil device detachably connected to the distal region of the elongate delivery shaft. In some forms, as detachably connected, at least some of the coil windings of the embolic coil device, such as those in a proximal segment of the coil windings, are in a resiliently longitudinally compressed condition. When the embolic coil device is detached from the delivery shaft, the coil windings resiliently move to a longitudinally extended condition, where the coil windings in the longitudinally extended condition are more open than they are in the resiliently longitudinally compressed condition. In some forms, the systems have a coil detachment interface at a distal region of a flexible elongate delivery shaft. The coil detachment interface includes a distal tubular segment and a bridge segment proximal of the distal tubular segment. The bridge segment includes a bridge wall or other bridge component defining an upper surface, a lower surface, a proximally-facing edge spanning between the upper surface and the lower surface, and a distally-facing edge spanning between the upper surface and the lower surface. The bridge segment further defines a lumen between the lower surface of the bridge wall or other bridge component and a bottom wall of the bridge segment. Also described are embolic coil devices and bridge members configured for use in such systems.