US6918921B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support frame for an embolic protection device
Assignee: Salviac Ltd
•
Filing: 2002-12-23
•
Granted: 2005-07-19
•
Expires: 2022-12-23
Abstract
Abstract An embolic protection device comprises a collapsible filter element for delivery through a vascular system of a patient The filter element comprises a collapsible filter body 2 and a filter support 3 for the filter body. The filter body has an inlet end 4 and an outlet end 5 , the inlet end 4 of the filter body has one or more inlet openings 6 sized to allow blood and embolic material enter the filter body 2 and the outlet end 5 of the filter body has a plurality of outlet openings 107 sized to allow through passage of blood but to retain undesired embolic material within the filter body 2 . The filter support 3 is movable between a collapsed position for movement through the vascular system, and an extended outwardly projecting position to support the filter body in an expanded position The filter support 3 comprises a generally tubular support frame defined by at least one wire 16.
Inventors
- 👤 Eamon Brady
- 👤 David Vale
- 👤 Ronald Kelly
- 👤 John Neilan
- 👤 Steven Horan
- 👤 Gerard Rabitte
- 👤 Gerry McCaffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0108; A61F2/013; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; A61B2017/2215; A61F2002/016; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0067; A61F2230/0093
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
188 words
An embolic protection device comprising: a collapsible filter element for delivery through a vascular system of a patient; the filter element comprising a collapsible filter body and a filter support for the filter body; the filter body having an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body; the filter support having a longitudinal axis and being movable between a collapsed position for movement through the vascular system, and an extended outwardly projecting position to support the filter body in an expanded position; the filter support comprising a generally tubular support frame having a plurality of frame cells, each frame cell being defined by at least one wire segment extending around a perimeter of the frame cell, a portion of a said wire segment extending along a generally radial arc with respect to the longitudinal axis.
Claim 2
Dependent Claim
188 words
An embolic protection device comprising: a collapsible filter element for delivery through a vascular system of a patient; the filter element comprising a collapsible filter body and a filter support for the filter body; the filter body having an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body; the filter support having a longitudinal axis and being movable between a collapsed position for movement through the vascular system, and an extended outwardly projecting position to support the filter body in an expanded position; the filter support comprising a generally tubular support frame having a plurality of frame cells, each frame cell being defined by at least one wire segment extending around a perimeter of the frame cell, a portion of a said wire segment extending along a generally radial arc with respect to the longitudinal axis.
Claim 3
Dependent Claim
27 words
An embolic protection device as claimed in claim 1 wherein at least one of the cells defines a segment of a tube of the tubular support frame.
Claim 4
Dependent Claim
18 words
An embolic protection device as claimed in claim 2 wherein each cell defines a segment of the tube.
Claim 5
Dependent Claim
30 words
An embolic protection device as claimed in claim 1 wherein at least a portion of a wire segment of one cell is connected to a wire segment of another cell.
Claim 6
Dependent Claim
21 words
An embolic protection device as claimed in claim 4 wherein the connection is provided by an extension wire between the cells.
Claim 7
Dependent Claim
31 words
An embolic protection device as claimed in claim 4 wherein at least a portion of a wire segment of one cell is directly fixed to a wire segment of another cell.
Claim 8
Dependent Claim
37 words
An embolic protection device as claimed in claim 1 wherein each cell is defined by two wire segments, with each of the two wire segments extending around at least a portion of the perimeter of the cell.
Claim 9
Dependent Claim
40 words
An embolic protection device as claimed in claim 7 wherein a first wire segment extends around a portion of the perimeter of the cell, and a second wire segment extends around the remaining portion of the perimeter of the cell.
Claim 10
Dependent Claim
20 words
An embolic protection device as claimed in claim 7 wherein the two wire segments are of substantially the same length.
Claim 11
Dependent Claim
49 words
An embolic protection device as claimed in claim 9 wherein each wire segment has a proximal termination and a distal termination, and the proximal terminations of adjacent wire segments are fixed relative to one another, or the distal terminations of adjacent wire segments are fixed relative to one another.
Claim 12
Dependent Claim
25 words
An embolic protection device as claimed in claim 10 wherein the terminations of adjacent wire segments extend generally axially and parallel to the longitudinal axis.
Claim 13
Dependent Claim
20 words
An embolic protection device as claimed in claim 10 wherein the proximal terminations are circumferentially aligned with the distal terminations.
Claim 14
Dependent Claim
20 words
An embolic protection device as claimed in claim 10 wherein the proximal terminations are circumferentially offset from the distal terminations.
Claim 15
Dependent Claim
23 words
An embolic protection device as claimed in claim 1 wherein each wire segment has an axially extending portion and a circumferentially extending portion.
Claim 16
Dependent Claim
24 words
An embolic protection device as claimed in claim 1 wherein at least one wire segment has an S-shaped portion for distributed filter body support.
Claim 17
Dependent Claim
25 words
An embolic protection device as claimed in claim 1 wherein at least two wire segments are provided by a single wire bent back on itself.
Claim 18
Dependent Claim
25 words
An embolic protection device as claimed in claim 16 wherein the single wire has a strain relief means at the bend in the single wire.
Claim 19
Dependent Claim
25 words
An embolic protection device as claimed in claim 16 wherein the single wire is treated to minimize stress at the bend in the single wire.
Claim 20
Dependent Claim
36 words
An embolic protection device as claimed claim 1 wherein the filter support comprises at least one support leg extending radially inwardly from the tubular support frame, the leg being defined by at least one wire segment.
Claim 21
Dependent Claim
27 words
An embolic protection device as claimed in claim 19 wherein at least part of the support leg is integral with at least part of the support frame.
Claim 22
Dependent Claim
20 words
An embolic protection device as claimed in claim 19 wherein the support leg extends distally inwardly from the support frame.
Claim 23
Dependent Claim
43 words
A device as claimed in claim 1 wherein the support frame is defined by at least two additional wire segments terminating distally, the distal terminations of adjacent additional segments being fixed relative to one another and extending generally parallel to the longitudinal axis.
Claim 24
Dependent Claim
43 words
A device as claimed in claim 1 wherein the support frame is defined by at least two additional wire segments terminating proximally, the proximal terminations of adjacent additional segments being fixed relative to one another and extending generally parallel to the longitudinal axis.
Claim 25
Dependent Claim
18 words
A device as claimed in claim 1 wherein the device comprises a carrier extending longitudinally of the frame.
Claim 26
Dependent Claim
22 words
An embolic protection device as claimed in claim 1 wherein the support frame includes at least two additional wire segments having terminations.
Claim 27
Dependent Claim
20 words
A device as claimed in claim 25 wherein the terminations of adjacent additional segments are fixed relative to one another.
Claim 28
Dependent Claim
17 words
A device as claimed in claim 25 wherein adjacent terminations extend generally parallel to the longitudinal axis.
Claim 29
Dependent Claim
17 words
A device as claimed in claim 25 wherein the terminations extend axially in relation to the filter.
Claim 30
Dependent Claim
15 words
A device as claimed in claim 25 wherein the terminations are free to move axially.
Claim 31
Dependent Claim
18 words
A device as claimed in claim 25 wherein the additional wire segments are of substantially the same length.
Claim 32
Dependent Claim
30 words
A device as claimed in claim 25 wherein the additional wire segments are fixed relative to one another by soldering, or welding, or bonding the wire segments to one another.
Claim 33
Dependent Claim
20 words
A device as claimed in claim 25 wherein the terminations are located on an outer circumference of the filter frame.
Claim 34
Dependent Claim
18 words
A device as claimed in claim 25 wherein the terminations are located on an axis of the filter.
Claim 35
Dependent Claim
17 words
A device as claimed in claim 1 wherein the device comprises a carrier for the support frame.
Claim 36
Dependent Claim
14 words
A device as claimed in claim 34 wherein the carrier comprises a tubular member.
Claim 37
Dependent Claim
18 words
A device as claimed in claim 1 wherein the at least one wire segment has a round cross-section.
References Cited (Backward Citations)
US2854983A
Cited
US3334629A
Cited
US3435824A
Cited
US3540431A
Cited
US3692029A
Cited
US3730185A
Cited
US3952747A
Cited
GB2020557B
Cited
US4295464A
Cited
US4404971A
Cited
US4425908A
Cited
US4610662A
Cited
US4423725A
Cited
US4445892A
Cited
US4493711A
Cited
US4643184A
Cited
US4512762A
Cited
US4585000A
Cited
US4586919A
Cited
US4611594A
Cited
US4619246A
Cited
US4926858A
Cited
US4807626A
Cited
FR2580504B1
Cited
US4650466A
Cited
US4790812A
Cited
EP0256683A2
Cited
US4723549A
Cited
US4712551A
Cited
US4781177A
Cited
DE3706077C1
Cited
GB2200848B
Cited
US4817600A
Cited
WO1988009683A1
Cited
US4794928A
Cited
FR2616666A1
Cited
US4867156A
Cited
US4873978A
Cited
US4957501A
Cited
WO1989007422A1
Cited
US4990156A
Cited
US4832055A
Cited
US5011488A
Cited
US4927426A
Cited
US4969891A
Cited
US5026377A
Cited
US5092839A
Cited
US5133733A
Cited
US5421832A
Cited
US5122125A
Cited
US5171233A
Cited
US5329942A
Cited
US5108419A
Cited
US5100423A
Cited
US5178158A
Cited
US5053008A
Cited
US5405329A
Cited
US5454788A
Cited
EP0533511A1
Cited
US5192284A
Cited
US5375612A
Cited
US5336234A
Cited
US5324304A
Cited
FR2694687B1
Cited
US5387219A
Cited
EP0596172B1
Cited
US5540707A
Cited
US5383887A
Cited
US5354310A
Cited
US5370657A
Cited
US5902334A
Cited
US5843167A
Cited
WO1994024946A1
Cited
US5897567A
Cited
US5836969A
Cited
EP0655228A1
Cited
US5683451A
Cited
WO1995034254A1
Cited
US5720764A
Cited
WO1995034339A1
Cited
US20020072765A1
Cited
US20020138095A1
Cited
WO1996001591A1
Cited
US6123715A
Cited
US20020095172A1
Cited
US6605102B1
Cited
US20020062135A1
Cited
US5658296A
Cited
US5709704A
Cited
US5549626A
Cited
US5593394A
Cited
US5795322A
Cited
US5823992A
Cited
EP0743046A1
Cited
WO1996039998A3
Cited
WO1997003810A1
Cited
US5766203A
Cited
EP0759287B1
Cited
US6168604B1
Cited
US5779716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-07-18 | 2009-01-17 | 2009-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-07-18 | 2013-01-17 | 2013-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-07-18 | 2017-01-17 | 2017-07-19 | $7700.00 | Window Closed / Lapsed |