US6929653B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for replacing aortic valve
Assignee: Medtronic Inc
•
Filing: 2001-12-14
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Granted: 2005-08-16
•
Expires: 2021-12-14
Abstract
Abstract Apparatus and methods are disclosed for performing beating heart surgery. Apparatus is disclosed comprising a cannula having a proximal end and a distal end; an aortic filter in connection with the cannula, the aortic filter having a proximal side and a distal side; a check valve in connection with the cannula, the check valve disposed on the distal side of the aortic filter; and a coronary artery filter in connection with the cannula, the coronary artery filter having a proximal end and a distal end, and the distal end of the coronary artery filter extending distally away from the distal end of the cannula. A method is disclosed comprising providing apparatus for performing beating heart surgery; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing the apparatus from the aorta.
Inventors
- 👤 Richard B. Strecter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2427; A61F2/01; A61F2/013; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0069; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
159 words
Apparatus for performing beating heart surgery, said apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end of said cannula; an aortic filter mounted on a distal end portion of said cannula for disposition in the aorta; a check valve mounted on the distal end portion of said cannula and disposed distally of said aortic filter mounted on the distal end portion of said cannula; and a coronary artery filter connected to said cannula and extending distally of said check valve, a distal portion of said coronary artery filter being configured for deployment upstream of said aortic filter check valve, and said coronary artery filter being configured to make a sealing engagement with a periphery of an aortic valve and cover openings into coronary arteries.
Claim 2
Dependent Claim
159 words
Apparatus for performing beating heart surgery, said apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end of said cannula; an aortic filter mounted on a distal end portion of said cannula for disposition in the aorta; a check valve mounted on the distal end portion of said cannula and disposed distally of said aortic filter mounted on the distal end portion of said cannula; and a coronary artery filter connected to said cannula and extending distally of said check valve, a distal portion of said coronary artery filter being configured for deployment upstream of said aortic filter check valve, and said coronary artery filter being configured to make a sealing engagement with a periphery of an aortic valve and cover openings into coronary arteries.
Claim 3
Dependent Claim
17 words
Apparatus according to claim 1 wherein said cannula permits delivery of an instrument to a surgical site.
Claim 4
Dependent Claim
22 words
Apparatus according to claim 1 wherein the porosity of said coronary artery filter is different from the porosity of said aortic filter.
Claim 5
Dependent Claim
19 words
Apparatus according to claim 1 wherein said coronary artery filter has a larger mesh size than said aortic filter.
Claim 6
Dependent Claim
19 words
Apparatus according to claim 1 wherein said apparatus is configurable to form a substantial seal with a vascular structure.
Claim 7
Dependent Claim
16 words
Apparatus according to claim 5 wherein the vascular structure is an inner surface of an aorta.
Claim 8
Dependent Claim
22 words
Apparatus according to claim 1 further comprising at least one impermeable membrane extending longitudinally along a surface of said coronary artery filter.
Claim 9
Dependent Claim
71 words
Apparatus according to claim 7 wherein said at least one impermeable membrane is provided with a proximal end and a distal end in an orientation corresponding to the proximal end of said cannula and the distal end of said cannula, respectively, and the proximal end of said at least one impermeable membrane is connected to said coronary artery filter so as to channel blood flow to a coronary artery during diastole.
Claim 10
Dependent Claim
30 words
Apparatus according to claim 1 wherein said coronary artery filter forms a perfusion conduit on a surface thereof so as to allow blood flow to a coronary artery during diastole.
Claim 11
Dependent Claim
77 words
Apparatus according to claim 9 further comprising an impermeable membrane extending longitudinally along a surface of said coronary artery filter, said impermeable membrane having a proximal end and a distal end in an orientation corresponding to the proximal end of said cannula and the distal end of said cannula, respectively, and the proximal end of said impermeable membrane is connected to said coronary artery filter so as to channel blood flow to the coronary arteries during diastole.
Claim 12
Dependent Claim
32 words
Apparatus according to claim 10 wherein said apparatus is configurable to form a substantial seal with an aorta, with an outer surface of said coronary artery filter leaving the perfusion conduit unobstructed.
Claim 13
Independent Claim
185 words
A method for performing beating heart surgery, said method comprising: providing apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end of the cannula; an aortic filter mounted on a distal end portion of the cannula for disposition in the aorta; a check valve mounted on the distal end portion of said cannula and disposed distally of the aortic filter mounted on the distal end portion of said cannula; and a coronary artery filter connected to the cannula, and extending distally of the check valve, a distal portion of the coronary artery filter being configured for deployment upstream of the aortic filter, and extending distally from the distal end of the cannula, the coronary artery filter being configured to cover openings into coronary arteries adjacent a periphery of an aortic valve; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing the apparatus from the aorta.
Claim 14
Independent Claim
185 words
A method for performing beating heart surgery, said method comprising: providing apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end of the cannula; an aortic filter mounted on a distal end portion of the cannula for disposition in the aorta; a check valve mounted on the distal end portion of said cannula and disposed distally of the aortic filter mounted on the distal end portion of said cannula; and a coronary artery filter connected to the cannula, and extending distally of the check valve, a distal portion of the coronary artery filter being configured for deployment upstream of the aortic filter, and extending distally from the distal end of the cannula, the coronary artery filter being configured to cover openings into coronary arteries adjacent a periphery of an aortic valve; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing the apparatus from the aorta.
Claim 15
Independent Claim
143 words
A method for performing beating heart surgery, said method comprising: providing apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula being configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end thereof; and a filter mounted on a distal portion of the cannula, the filter having a proximal end and a distal end, the distal end of the filter extending in a direction away from the distal end of the cannula; wherein the filter is adapted to make a sealing engagement with a periphery of an aortic valve, and is adapted to cover openings extending into coronary arteries; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing said apparatus from the aorta.
Claim 16
Independent Claim
143 words
A method for performing beating heart surgery, said method comprising: providing apparatus comprising: a cannula having a proximal end and a distal end, the distal end of said cannula being configured for deployment substantially concentrically in an aorta to allow blood flow during systole in a direction proximally from the distal end to the proximal end thereof; and a filter mounted on a distal portion of the cannula, the filter having a proximal end and a distal end, the distal end of the filter extending in a direction away from the distal end of the cannula; wherein the filter is adapted to make a sealing engagement with a periphery of an aortic valve, and is adapted to cover openings extending into coronary arteries; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing said apparatus from the aorta.
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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) | 2008-08-15 | 2009-02-14 | 2009-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-08-15 | 2013-02-14 | 2013-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-08-15 | 2017-02-14 | 2017-08-16 | $7700.00 | Window Closed / Lapsed |