MECHANICALLY DETACHABLE VASO-OCCLUSIVE DEVICE
First Claim
1. A device for delivering an occlusive element comprising:
- an occlusive element including a securing member positioned at a proximal end thereof;
an elongate sheath having a distal end and a proximal end and lumen extending between the distal and proximal ends;
an elongate releasing member disposed within the lumen of the elongate sheath, the elongate releasing member including a proximal end and a distal end, the elongate releasing member being moveable within the lumen of the elongate sheath;
a filament having first and second ends secured to the elongate sheath so as to form a loop segment; and
wherein the device includes a locked state and an unlocked state, the locked state formed when the loop segment passes through the securing member and the distal end of the elongate releasing member engages with the loop segment passing through the securing member and wherein the unlocked state is formed when the distal end of the elongate releasing member is retracted proximally from the loop segment.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for delivering an occlusive element such as a vaso-occlusive coil includes an elongate sheath. An elongate releasing member having a distal tip or end is moveable within a lumen of the elongate sheath. A filament is provided having first and second ends with each end being fixed relative to the elongate sheath to form a loop segment. The loop segment of the filament is passed through a securing member located on the proximal end of the occlusive element. The distal tip of the elongate releasing member is inserted into the portion of the loop segment that passes through the securing member to lock the occlusive element relative to the elongate sheath. The occlusive element is released by pulling the elongate releasing member proximally to retract the distal tip from the loop segment of the filament.
-
Citations
21 Claims
-
1. A device for delivering an occlusive element comprising:
-
an occlusive element including a securing member positioned at a proximal end thereof; an elongate sheath having a distal end and a proximal end and lumen extending between the distal and proximal ends; an elongate releasing member disposed within the lumen of the elongate sheath, the elongate releasing member including a proximal end and a distal end, the elongate releasing member being moveable within the lumen of the elongate sheath; a filament having first and second ends secured to the elongate sheath so as to form a loop segment; and wherein the device includes a locked state and an unlocked state, the locked state formed when the loop segment passes through the securing member and the distal end of the elongate releasing member engages with the loop segment passing through the securing member and wherein the unlocked state is formed when the distal end of the elongate releasing member is retracted proximally from the loop segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A device for delivering an occlusive element comprising:
-
an occlusive element including a securing member positioned at a proximal end thereof; an elongate sheath having a distal end and a proximal end and lumen extending between the distal and proximal ends; an elongate releasing member disposed within the lumen of the elongate sheath, the elongate releasing member including a proximal end and a distal tip, the elongate releasing member being moveable within the lumen of the elongate sheath; a blocking member disposed in a distal end of the elongate sheath; a filament having first and second ends fixedly interposed between the blocking member and the elongate sheath so as to form a loop segment; and wherein the device includes a locked state and an unlocked state, the locked state formed when the loop segment passes through the securing member and the distal end of the elongate releasing member engages with the loop segment passing through the securing member and wherein the unlocked state is formed when the distal end of the elongate releasing member is retracted proximally from the loop segment. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A method of loading a vaso-occlusive coil on a delivery device comprising:
-
providing a vaso-occlusive coil having a securing member disposed at a proximal end thereof; providing an elongate sheath having a distal end and a proximal end and lumen extending between the distal and proximal ends; providing a filament having first and second ends secured to a distal portion of the elongate sheath to form a loop segment; providing an elongate releasing member within the lumen of the elongate sheath, the elongate releasing member being moveable within the lumen of the elongate sheath; introducing the loop segment of the filament through the securing member of the vaso-occlusive coil; and inserting a distal end of the elongate releasing member through the portion of loop segment inserted through the securing member so as to affix the vaso-occlusive coil relative to the elongate sheath. - View Dependent Claims (19, 20, 21)
-
Specification