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US 9,808,256 B2Granted
Electrolytic detachment elements for implant delivery systems
AssigneeCovidien LP
InventorsJianlu Ma, Vincent Divino
Life of this patent
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AssigneeCovidien LP
InventorsJianlu Ma, Vincent Divino
Estimating the term…
Detachment of a medical device from a delivery assembly can focus activity of electrolytic detachment to enhance detachment procedures. Electrolytic activity can be focused by insulating nearby areas of a core wire and pre-treating a detachment zone to reduce crystallinity of the detachment zone. Such a delivery system, can include an electrolytically corrodible core wire comprising a proximal portion, a distal portion, and a detachment zone between the proximal portion and the distal portion; a proximal insulating layer annularly contacting the proximal portion; a coil helically winding about and contacting at least a portion of the proximal insulating layer; a tube annularly contacting at least a portion of the helical coil; a distal insulating layer annularly contacting the distal portion; and a hub of an implant annularly contacting at least a portion of the distal insulating layer; wherein a distal end of the proximal insulating layer and a proximal end of the distal insulating layer are axially spaced apart to expose the detachment zone.
A delivery system, comprising:
A delivery system, comprising:
A delivery system, comprising:
Dependencies are inferred from the claim text.