MECHANICALLY DETACHABLE VASO-OCCLUSIVE DEVICE
First Claim
1. A device for delivering an occlusive element comprising:
- an elongate pusher member having a distal end and a proximal end and a lumen extending between the distal and proximal ends;
a locking member disposed in the lumen of the elongate pusher member;
an elongate releasing member having a distal end and a proximal end, the distal end including a filament attached thereto, the elongate releasing member being moveable within the lumen of the elongate pusher member; and
an occlusive element including a securing member positioned at a proximal end, wherein the securing member is locked to the elongate releasing member when the filament passes through the securing member and is pinched between the locking member and the elongate releasing member and unlocked when the elongate releasing member is retracted proximally relative to the elongate pusher member.
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Accused Products
Abstract
A device for delivering an occlusive element includes an elongate pusher member having a lumen. A locking member is disposed within the lumen of the elongate pusher member. A moveable elongate releasing member is disposed within the lumen of the elongate pusher member. A filament is secured to the distal end of the elongate releasing member. The occlusive member is locked to the elongate releasing member when the filament passes through a securing member on the occlusive member and is pinched or wedged between the locking member and the elongate releasing member. The occlusive element is in an unlocked state when the elongate releasing member is retracted proximally relative to the elongate pusher member. The filament, along with the elongate releasing member, are retracted proximally until the filament is detached or uncoupled from the securing member of the occlusive member.
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Citations
20 Claims
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1. A device for delivering an occlusive element comprising:
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an elongate pusher member having a distal end and a proximal end and a lumen extending between the distal and proximal ends; a locking member disposed in the lumen of the elongate pusher member; an elongate releasing member having a distal end and a proximal end, the distal end including a filament attached thereto, the elongate releasing member being moveable within the lumen of the elongate pusher member; and an occlusive element including a securing member positioned at a proximal end, wherein the securing member is locked to the elongate releasing member when the filament passes through the securing member and is pinched between the locking member and the elongate releasing member and unlocked when the elongate releasing member is retracted proximally relative to the elongate pusher member. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for delivering an occlusive element comprising:
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an elongate pusher member having a distal end and a proximal end and a lumen extending between the distal and proximal ends; a coil member secured to the distal end of the elongate pusher member; a locking member disposed in the lumen of the elongate pusher member; an elongate releasing member having a distal end and a proximal end, the distal end including a filament attached thereto, the elongate releasing member being moveable within the lumen of the elongate pusher member; and an occlusive element including a securing member positioned at a proximal end, wherein the securing member is locked to the elongate releasing member when the filament passes through the securing member and is wedged between the locking member and the elongate releasing member and unlocked when the elongate releasing member is retracted proximally relative to the elongate pusher member. - View Dependent Claims (8, 9, 10, 11)
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12. A method of making a vaso-occlusive coil delivery device comprising:
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loading a vaso-occlusive coil on a distal end of an elongate pusher member by passing a filament coupled to an elongate releasing member through a securing member of the vaso-occlusive coil; and locking the vaso-occlusive coil to the elongate pusher member by advancing the elongate releasing member distally within the elongate pusher member so as to wedge the filament between the elongate releasing member and a locking surface of the elongate pusher member. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification