US7011672B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cannula with associated filter and methods of use during cardiac surgery
Assignee: Edwards Lifesciences Corp
•
Filing: 2001-11-30
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Granted: 2006-03-14
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Expires: 2021-11-30
Abstract
Abstract Devices and methods for filtering blood. The devices generally comprise a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the blood vessel, and a means to actuate the structure. The methods generally include the steps of introducing a mesh into a blood vessel to entrap embolic material, and removing the mesh and the entrapped foreign matter from the blood vessel.
Inventors
- 👤 Denise Barbut
- 👤 Tracy D. Maahs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0067; A61F2250/00; A61F2250/0003; A61M; A61M2210/00; A61M2210/12; A61M2210/127
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
A medical device comprising: a tubular member having a proximal end, a distal end, and a lumen therebetween; an elongate member having a proximal end and a distal end, wherein the elongate member is configured to extend through the lumen of the tubular member; and a filter removably insertable through the lumen of the tubular member and mounted on the distal end of the elongate member, the filter having an apex and an opening, wherein the apex of the filter is distal the opening, and wherein the filter has a pore size of 50 to 300 microns and is adapted to allow a blood flow rate of 3L/min or more through the filter.
Claim 2
Dependent Claim
113 words
A medical device comprising: a tubular member having a proximal end, a distal end, and a lumen therebetween; an elongate member having a proximal end and a distal end, wherein the elongate member is configured to extend through the lumen of the tubular member; and a filter removably insertable through the lumen of the tubular member and mounted on the distal end of the elongate member, the filter having an apex and an opening, wherein the apex of the filter is distal the opening, and wherein the filter has a pore size of 50 to 300 microns and is adapted to allow a blood flow rate of 3L/min or more through the filter.
Claim 3
Dependent Claim
21 words
The medical device of claim 1 , wherein the tubular member provides a hemostatic seal between the filter and the lumen.
Claim 4
Dependent Claim
55 words
The medical device of claim 1 , wherein the filter comprises: an expansion frame mounted on the distal end of the elongate member, the expansion frame expandable between a contracted condition and an enlarged condition, the expansion frame deployable through a distal opening of the lumen; and a filter mesh coupled to the expansion frame.
Claim 5
Dependent Claim
15 words
The medical device of claim 3 , wherein the expansion frame comprises a self-expanding material.
Claim 6
Dependent Claim
15 words
The medical device of claim 4 , wherein the self-expanding material comprises a shape-memory material.
Claim 7
Dependent Claim
16 words
The medical device of claim 4 , wherein the self-expanding material is a thin gauge metal.
Claim 8
Dependent Claim
15 words
The medical device of claim 3 , wherein the expansion frame comprises an umbrella structure.
Claim 9
Dependent Claim
16 words
The medical device of claim 3 , wherein the expansion frame comprises a plurality of struts.
Claim 10
Dependent Claim
15 words
The medical device of claim 3 , wherein the expansion frame comprises a self-expanding material.
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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) | 2009-03-13 | 2009-09-12 | 2010-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-03-13 | 2013-09-12 | 2014-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-03-13 | 2017-09-12 | 2018-03-14 | $7700.00 | Window Closed / Lapsed |