Embolic filtering devices
First Claim
1. An embolic filtering system used to capture embolic debris in a body vessel, comprising:
- an expandable filter assembly including a self-expanding frame moveable between an expanded position and an unexpanded position, the expandable filter being disposed on a guide wire;
a filtering element attached to and movable with the frame;
a sheath having a lumen for receiving the guide wire and having a distal end portion and a proximal end, the distal end portion of the sheath being adapted to receive the expandable filter assembly for maintaining the filter assembly in the unexpanded position and being movable to expose the filter assembly; and
a torque device including;
a handle with a lumen extending therethrough for receiving the guide wire which allows the handle to be directly mountable on the guide wire,means associated with the handle for locking the guide wire to the torque handle to allow the user to rotate the guide wire,a side port adapted to receive the proximal end of the sheath which allows a portion of the guide wire to shear the sheath from the guide wire through retraction of the sheath through the side port; and
an extension arm extending from the handle which includes a distal end having an opening adapted to receive both the guide wire and the sheath, the end of the extension arm being disposed longitudinally away from the side port.
6 Assignments
0 Petitions
Accused Products
Abstract
An embolic filtering system includes a guide wire, a filter device disposed on the guide wire, a sheath adapted to maintain the filter device in an unexpanded position and a torque device having a lumen for receiving the guide wire and a locking mechanism for locking the torque device to the guide wire. The torque device may include a side port adapted to receive the proximal end of the sheath to allow a portion of the guide wire to shear the sheath from the guide wire through retraction of the sheath through the side port. The torque device may include an extension arm having a distal opening adapted to receive both the guide wire and the sheath. A second lumen may be used to allow a portion of the guide wire to shear the sheath away from the guide wire through retraction of the sheath through the second lumen.
-
Citations
24 Claims
-
1. An embolic filtering system used to capture embolic debris in a body vessel, comprising:
-
an expandable filter assembly including a self-expanding frame moveable between an expanded position and an unexpanded position, the expandable filter being disposed on a guide wire; a filtering element attached to and movable with the frame; a sheath having a lumen for receiving the guide wire and having a distal end portion and a proximal end, the distal end portion of the sheath being adapted to receive the expandable filter assembly for maintaining the filter assembly in the unexpanded position and being movable to expose the filter assembly; and a torque device including; a handle with a lumen extending therethrough for receiving the guide wire which allows the handle to be directly mountable on the guide wire, means associated with the handle for locking the guide wire to the torque handle to allow the user to rotate the guide wire, a side port adapted to receive the proximal end of the sheath which allows a portion of the guide wire to shear the sheath from the guide wire through retraction of the sheath through the side port; and an extension arm extending from the handle which includes a distal end having an opening adapted to receive both the guide wire and the sheath, the end of the extension arm being disposed longitudinally away from the side port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A torque device for rotating a guide wire and effecting the splitting of a sheath which is co-axially disposed over the guide wire, the torque device comprising:
-
a handle having a lumen extending therethrough for receiving the guide wire; means associated with the handle to lock the guide wire within the lumen of the handle; and a side port adapted to receive the proximal end of the sheath which allows a portion of the guide wire to shear the sheath from the guide wire through proximal retraction of the sheath through the side port. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. An embolic filtering system used to capture embolic debris in a body vessel, comprising:
-
a guide wire; a filter device disposed on the guide wire; a sheath having a distal end portion and a proximal end, the distal end portion of the sheath being adapted to receive and maintain the filter device in an unexpanded position and removable from the filter device, the sheath having a guide wire lumen for receiving the guide wire; and a torque device having a handle portion directly mountable on the guide wire to allow the user to rotate the guide wire, the handle having a lumen extending therethrough for receiving the guide wire, the torque device having a side port adapted to receive the proximal end of the sheath which allows a portion of the guide wire to shear the sheath from the guide wire by the retraction of the sheath through the side port. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
-
24. An embolic filtering system used to capture embolic debris in a body vessel, comprising:
-
a guide wire; a filter device disposed on the guide wire; a sheath having a distal end portion and a proximal end, the distal end portion of the sheath being adapted to receive and maintain the filter device in an unexpanded position and removable from the filter device, the sheath having a guide wire lumen for receiving the guide wire; and a torque device having a handle portion directly mountable on the guide, the handle having a lumen extending therethrough for receiving the guide wire and a locking mechanism for locking the torque device to the guide wire, a second lumen formed on the handle separate and offset from the guide wire receiving lumen which allows a portion of the guide wire to shear the sheath away from the guide wire by the retraction of the sheath through the second lumen.
-
Specification