05261916 is referenced by 501 patents and cites 7 patents.

A pusher-vasoocclusive coil assembly that is advanced through a catheter to a site within a vessel and is manipulated to detach the coil from the assembly. The coil has an enlarged member at its proximal end and the pusher has a keyway at its distal end that receives the enlarged member in interlocking engagement. The pusher and coil are coupled by placing the enlarged member in the keyway and enclosing the coupled assembly with a coaxial sleeve. The coil-pusher-sleeve assembly is positioned at the site and the sleeve is retracted to allow the member to move out of the keyway to uncouple the pusher and coil.

Title
Detachable pusher-vasoocclusive coil assembly with interlocking ball and keyway coupling
Application Number
7/806912
Publication Number
5261916
Application Date
December 12, 1991
Publication Date
November 16, 1993
Inventor
Erik T Engelson
Mountain View
CA, US
Agent
Morrison & Foerster
Assignee
Target Therapeutics
CA, US
IPC
A61B 17/00
A61M 29/00
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