Detachable embolic coil assembly

Details Detachable embolic coil assembly Detachable embolic coil assembly

A - Human Necessities

61

B

A61B 17/03 (2006.01) A61B 17/12 (2006.01) A61B 18/14 (2006.01) A61F 2/01 (2006.01) A61M 29/00 (2006.01)

Patent

CA 2123983

This invention is a surgical instrument and specifically is a device for delivering embolic coils to a selected site within the vasculature of the human body via use of a catheter. In particular, the device involves an embolic coil having a radially enlarged member attached to one end, which coil is released-by forcing the radially enlarged member axially through a distendible aperture situated on the distal end of a pusher assembly. Alternatively, the embolic coils may be mounted on a guidewire and a pusher sheath within the catheter lumen used to push through the coils through the end of the catheter lumen. The catheter has a constricted distal tip or other means of frictionally controlling the release of embolic coils. Additionally (or alternatively), the guidewire may engage the embolic coils from their interior to allow precise placement of the coils.

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