US20050004595A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embolic filtering devices
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2003-09-29
•
Granted: —
•
Expires: 2023-09-29
Abstract
Abstract An expandable frame for an embolic filtering device used to capture embolic debris in a body vessel includes a first half frame having a first control arm connected to a second control arm by a partial loop and a second half frame having a first control arm connected to a second control arm by a partial loop. The partial loops cooperatively form a composite loop for attachment of a filtering element which will expand in the body vessel to capture embolic debris entrained in the fluid of the vessel. The expandable frame and filtering element can be mounted on a filter support structure, such as a coiled wire, and mounted on a guide wire. The expandable frames include an articulation region which helps to distribute the strain which can be developed when the frame moves between an expanded and deployed position. The expandable frame may include further strain distributing bends which help distribute strain and increase the bendability of the frame. A modified torque device with extension arm prevents guide wire damage, prevents distal propagation of the peeling action and facilitates filter deployment during operation.
Inventors
- 👤 William Boyle
- 👤 John Papp
- 👤 Charles Peterson
- 👤 Paul Muller
- 👤 Donald Schwarten
- 👤 Kathern Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:07
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0108; A61F2/011; A61F2/013; A61F2/95; A61F2/962; A61F2/97; A61F2002/015; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
138 words
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; a filtering element attached to and movable with the expandable filter; a sheath 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 mountable on the elongate member to allow the user to rotate the elongate member, the torque device having a side port adapted to receive the proximal end of the sheath to shear the sheath from the elongate member through retraction of the sheath through the side port.
Claim 2
Dependent Claim
138 words
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; a filtering element attached to and movable with the expandable filter; a sheath 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 mountable on the elongate member to allow the user to rotate the elongate member, the torque device having a side port adapted to receive the proximal end of the sheath to shear the sheath from the elongate member through retraction of the sheath through the side port.
Claim 3
Dependent Claim
50 words
2 . The embolic filtering system of claim 1 , wherein the sheath includes a split seam extending therethrough from the proximal end to a location proximal to the distal end portion to enhance the ability of the sheath to shear as the sheath is retracted through the side port.
Claim 4
Dependent Claim
83 words
3 . The embolic filtering system of claim 1 , wherein the torque devise includes: a handle with a lumen extending therethrough for receiving the guide wire; means associated with the handle for holding the guide wire within the lumen of the handle; 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.
Claim 5
Dependent Claim
51 words
4 . The embolic filtering system of claim 3 , further including a tubular member extending distally from the distal end of the extension arm which includes a lumen aligned with and in communication with the opening of the distal end that is adapted to receive the guide wire and sheath.
Claim 6
Dependent Claim
70 words
5 . The embolic filtering system of claim 1 , wherein the torque device includes: a handle with a lumen extending therethrough for receiving the guide wire; and means associated with the handle for holding the guide wire within the lumen of the handle, the side port of the torque device being formed on a removably mounted component which can be attached to either the handle or the holding means.
Claim 7
Dependent Claim
96 words
6 . The embolic filtering system of claim 1 , wherein the torque device includes: a, handle with a lumen extending therethrough for receiving the guide wire; means associated with the handle for holding the guide wire within the lumen of the handle; and a distal tubular member attached to and extending from the handle having a lumen aligned with and in communication with the lumen of the handle, the distal tubular member being adapted to receive the guide wire and sheath, the side port of the torque device being attached to the distal tubular member.
Claim 8
Dependent Claim
28 words
7 . The embolic filtering system of claim 1 , wherein the side port is located at an offset location from the axis defined by the guide wire.
Claim 9
Dependent Claim
89 words
8 . A torque device for rotating a steerable 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 hold the guide wire within the lumen of the handle; and a side port adapted to receive the proximal end of the sheath to remove the sheath from the elongate member through proximal retraction of the sheath through the side port.
Claim 10
Dependent Claim
89 words
8 . A torque device for rotating a steerable 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 hold the guide wire within the lumen of the handle; and a side port adapted to receive the proximal end of the sheath to remove the sheath from the elongate member through proximal retraction of the sheath through the side port.
Claim 11
Dependent Claim
46 words
9 . The torque device of claim 8 , wherein the sheath includes a split seam extending therethrough from the proximal end to a location proximal to the distal end portion to cause the sheath to shear as the sheath is pulled through the side port.
Claim 12
Dependent Claim
54 words
10 . The torque device of claim 8 , wherein the torque device includes 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 distal end of the extension arm being disposed longitudinally away from the side port.
Claim 13
Dependent Claim
66 words
11 . The torque device of claim 8 , wherein the torque device includes a distal tubular member attached to and extending from the handle having a lumen aligned with and in communication with the lumen of the handle, the distal tubular member being adapted to receive the guide wire and sheath, the side port of the torque device being attached to the distal tubular member.
Claim 14
Dependent Claim
50 words
12 . The torque device of claim 10 , further including a tubular member extending distally from the distal end of the extension arm which includes a lumen aligned with and in communication with the opening of the distal end that is adapted to receive the guide wire and sheath.
Claim 15
Dependent Claim
28 words
13 . The torque device of claim 10 , wherein the opening of the distal end of the extension arm is aligned with the lumen of the handle.
Claim 16
Dependent Claim
27 words
14 . The torque device of claim 10 , wherein the side port is aligned offset from the opening of the distal end of the extension arm.
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