Embolic coil

Details Embolic coil Embolic coil

2003-07-24

2011-10-25

Houston, Elizabeth (Department: 3731)

Surgery

Instruments

Internal pressure applicator

Reexamination Certificate

active

08043321

ABSTRACT:
An embolic coil comprises an elongated core element formed of a shape memory material treated to define a memorized secondary coil shape and an elongated outer element wound around the elongated core element to define a primary coil shape of the embolic coil. A method of forming an embolic coil, comprises the steps of imparting a memorized shape to a core element formed of a shape memory material, wherein the memorized shape defines a secondary coil of the embolic coil and straightening the core element in combination with the steps of winding an elongated outer element around the straightened core element to form a primary coil of the embolic coil and releasing the straightened core element when the device has been positioned at a deployment location to form the secondary coil of the embolic coil.

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