US6544280B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular filter and method
Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-11-27
•
Granted: 2003-04-08
•
Expires: 2020-11-27
Abstract
Abstract A filter disposed at the distal end of an elongate guidewire. Catheters are provided for delivering the filter to, and retrieving the filter from, a treatment site. The catheters can be over-the-wire or single operator exchange. The catheters include a housing for receiving the filter therein. The housing has an atraumatic distal end.
Inventors
- 👤 John Daniel
- 👤 Brian J. Lowe
- 👤 Robert Cassell
- 👤 Bradley F. Slaker
- 👤 John E. Arnold, Jr.
- 👤 Thomas E. Broome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0108; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0067; A61F2250/00; A61F2250/0014; A61F2250/0023; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
77 words
A filter assembly, comprising: a catheter including an elongate shaft having a proximal end and a distal end; a housing disposed at the distal end of the elongate shaft; an elongate wire extending at least in part through the catheter, the wire having a proximal end and a distal end; a filter disposed at the distal end of the wire; and a housing insert disposed within the housing, the housing insert having a distally disposed atraumatic tip.
Claim 2
Dependent Claim
77 words
A filter assembly, comprising: a catheter including an elongate shaft having a proximal end and a distal end; a housing disposed at the distal end of the elongate shaft; an elongate wire extending at least in part through the catheter, the wire having a proximal end and a distal end; a filter disposed at the distal end of the wire; and a housing insert disposed within the housing, the housing insert having a distally disposed atraumatic tip.
Claim 3
Dependent Claim
15 words
The filter assembly in accordance with claim 1 , wherein the housing insert tapers distally.
Claim 4
Dependent Claim
22 words
The filter assembly in accordance with claim 1 , wherein the insert is releasably connected to the distal end of the housing.
Claim 5
Dependent Claim
15 words
The filter assembly in accordance with claim 1 , wherein the insert includes a balloon.
Claim 6
Dependent Claim
17 words
The filter assembly in accordance with claim 1 , wherein the wire extends distally of the filter.
Claim 7
Dependent Claim
21 words
The filter assembly in accordance with claim 5 , further comprising a spring tip at the distal end of the wire.
Claim 8
Dependent Claim
17 words
The filter assembly in accordance with claim 1 , wherein the catheter is a filter retrievable catheter.
Claim 9
Dependent Claim
17 words
The filter assembly in accordance with claim 1 , wherein the catheter is a filter delivery catheter.
Claim 10
Dependent Claim
20 words
The filter assembly in accordance with claim 1 , wherein the filter includes an expandable frame and a filter membrane.
Claim 11
Dependent Claim
16 words
The guidewire assembly in accordance with claim 9 , wherein the frame includes a NiTi alloy.
Claim 12
Dependent Claim
19 words
The guidewire assembly in accordance with claim 9 , wherein the filter membrane surrounds a portion of the wire.
Claim 13
Dependent Claim
19 words
The guidewire assembly in accordance with claim 9 , wherein the filter membrane portion of the filter tapers distally.
Claim 14
Dependent Claim
15 words
The guidewire assembly in accordance with claim 9 , wherein the filter membrane includes polyurethane.
Claim 15
Dependent Claim
18 words
The guidewire assembly in accordance with claim 9 , wherein the filter membrane defines a plurality of apertures.
Claim 16
Dependent Claim
21 words
The guidewire assembly in accordance with claim 1 , wherein the atraumatic tip includes a proximal end and a distal end.
Claim 17
Dependent Claim
20 words
The guidewire assembly in accordance with claim 15 , wherein the proximal end of the tip includes a friction ledge.
Claim 18
Dependent Claim
18 words
The guidewire assembly in accordance with claim 15 , wherein the distal end of the tip is tapered.
Claim 19
Dependent Claim
107 words
A filter assembly, comprising: a catheter including an elongate shaft having a proximal end and a distal end; a housing disposed at the distal end of the elongate shaft; an elongate wire extending at least in part through the catheter, the wire having a proximal end and a distal end; a filter disposed at the distal end of the wire, the filter includes an expandable frame and a filter membrane; and a housing insert disposed within the housing, the housing insert having a distally disposed atraumatic tip wherein the proximal end of the tip includes a friction ledge and the distal end of the tip is tapered.
Claim 20
Dependent Claim
107 words
A filter assembly, comprising: a catheter including an elongate shaft having a proximal end and a distal end; a housing disposed at the distal end of the elongate shaft; an elongate wire extending at least in part through the catheter, the wire having a proximal end and a distal end; a filter disposed at the distal end of the wire, the filter includes an expandable frame and a filter membrane; and a housing insert disposed within the housing, the housing insert having a distally disposed atraumatic tip wherein the proximal end of the tip includes a friction ledge and the distal end of the tip is tapered.
Claim 21
Dependent Claim
15 words
The filter assembly in accordance with claim 18 , wherein the housing insert tapers distally.
Claim 22
Dependent Claim
22 words
The filter assembly in accordance with claim 18 , wherein the insert is releasably connected to the distal end of the housing.
Claim 23
Dependent Claim
15 words
The filter assembly in accordance with claim 18 , wherein the insert includes a balloon.
Claim 24
Dependent Claim
17 words
The filter assembly in accordance with claim 18 , wherein the wire extends distally of the filter.
Claim 25
Dependent Claim
21 words
The filter assembly in accordance with claim 22 , further comprising a spring tip at the distal end of the wire.
Claim 26
Dependent Claim
17 words
The filter assembly in accordance with claim 18 , wherein the catheter is a filter retrievable catheter.
Claim 27
Dependent Claim
17 words
The filter assembly in accordance with claim 18 , wherein the catheter is a filter delivery catheter.
Claim 28
Dependent Claim
16 words
The guidewire assembly in accordance with claim 18 , wherein the frame includes a NiTi alloy.
Claim 29
Dependent Claim
19 words
The guidewire assembly in accordance with claim 18 , wherein the filter membrane surrounds a portion of the wire.
Claim 30
Dependent Claim
19 words
The guidewire assembly in accordance with claim 18 , wherein the filter membrane portion of the filter tapers distally.
Claim 31
Dependent Claim
15 words
The guidewire assembly in accordance with claim 18 , wherein the filter membrane includes polyurethane.
Claim 32
Dependent Claim
18 words
The guidewire assembly in accordance with claim 18 , wherein the filter membrane defines a plurality of apertures.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-04-07 | 2006-10-07 | 2007-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-07 | 2010-10-07 | 2011-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-04-07 | 2014-10-07 | 2015-04-08 | $7700.00 | Window Closed / Lapsed |