US7429269B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aortic prosthetic devices
Assignee: Medtronic Ventor Technologies Ltd
•
Filing: 2004-07-06
•
Granted: 2008-09-30
•
Expires: 2024-07-06
Abstract
Abstract A prosthetic device is provided for treatment of an aortic valve, having a compressed state for transarterial delivery and being expandable to an expanded state for implantation. The device includes an expandable support implantable in the expanded state of the prosthetic device in an aortic annulus, and an inner envelope having an upstream portion that lines the inner surface of the support, and a downstream portion which, when the prosthetic device is in the expanded state, extends into an aorta and defines a diverging conical section having a diameter that gradually increases from an upstream end of the section to a downstream end of the section. The section is configured to produce, during systole, a non-turbulent blood flow into the aorta with pressure recovery at the downstream end of the section. Other embodiments are also described.
Inventors
- 👤 Ehud Schwammenthal
- 👤 Yossi Tuval
- 👤 Raphael Benary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/04; A61F2/06; A61F2/2427; A61F2/2436; A61F2/82; A61F2/86; A61F2/962; A61F2/97; A61F2002/068; A61F2220/00; A61F2220/0025; A61F2220/005; A61F2220/0058
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
178 words
A prosthetic device for use in the treatment of an aortic valve of a patient's heart, said prosthetic device having a compressed state for transarterial delivery and being expandable to an expanded state for implantation, said prosthetic device comprising: an expandable support constructed so as to be implantable in the expanded state of the prosthetic device in an aortic annulus of the aortic valve; an inner envelope having an upstream portion that lines the inner surface of the support, and a downstream portion which, when the prosthetic device is in the expanded state, is configured to extend into an aorta and defines a diverging conical section having a diameter that gradually increases from an upstream end of the diverging conical section to a downstream end of the section, which diverging conical section is configured to produce, during systole, a non-turbulent blood flow into the aorta with pressure recovery at the downstream end of the diverging conical section; and a prosthetic valve coupled to the downstream portion of the envelope at the downstream end of the diverging conical section.
Claim 2
Dependent Claim
178 words
A prosthetic device for use in the treatment of an aortic valve of a patient's heart, said prosthetic device having a compressed state for transarterial delivery and being expandable to an expanded state for implantation, said prosthetic device comprising: an expandable support constructed so as to be implantable in the expanded state of the prosthetic device in an aortic annulus of the aortic valve; an inner envelope having an upstream portion that lines the inner surface of the support, and a downstream portion which, when the prosthetic device is in the expanded state, is configured to extend into an aorta and defines a diverging conical section having a diameter that gradually increases from an upstream end of the diverging conical section to a downstream end of the section, which diverging conical section is configured to produce, during systole, a non-turbulent blood flow into the aorta with pressure recovery at the downstream end of the diverging conical section; and a prosthetic valve coupled to the downstream portion of the envelope at the downstream end of the diverging conical section.
Claim 3
Dependent Claim
46 words
The prosthetic device according to claim 1 , wherein, in the expanded state of the prosthetic device, said diverging conical section has an upstream end of 5-20 mm in diameter and a downstream end of 15-30 mm in diameter, and is of 15-45 mm in length.
Claim 4
Dependent Claim
40 words
The prosthetic device according to claim 2 , wherein said upstream portion of the inner envelope includes a short straight section of uniform diameter within said aortic annulus effective to avoid flow separation through said upstream portion of the envelope.
Claim 5
Dependent Claim
19 words
The prosthetic device according to claim 3 , wherein said short straight section has a length of 2-10 mm.
Claim 6
Dependent Claim
40 words
The prosthetic device according to claim 1 , wherein said support includes two annular clamps engageable with the opposite sides of native leaflets of said aortic valve in the native leaflets' open positions for clamping the support to said leaflets.
Claim 7
Dependent Claim
21 words
The prosthetic device according to claim 5 , wherein each of said two annular clamps includes an annular array of fingers.
Claim 8
Dependent Claim
34 words
The prosthetic device according to claim 6 , wherein said support includes an annular array of bracing elements engageable with an inner surface of the aorta for bracing the prosthetic device within the aorta.
Claim 9
Dependent Claim
30 words
The prosthetic device according to claim 7 , wherein said bracing elements are integrally formed at one end with said annular array of fingers of one of said annular clamps.
Claim 10
Dependent Claim
59 words
The prosthetic device according to claim 1 , wherein said support, when the prosthetic device is in the expanded state extends to said downstream end of the diverging conical section, such that said inner envelope serves as a liner lining the inner surface of the support from said upstream end to said downstream end of the diverging conical section.
Claim 11
Dependent Claim
23 words
The prosthetic device according to claim 1 , wherein said prosthetic valve comprises a plurality of leaflets movable to open and closed positions.
Claim 12
Dependent Claim
21 words
The prosthetic device according to claim 10 , wherein said leaflets of the prosthetic valve are integral with said inner envelope.
Claim 13
Dependent Claim
22 words
The prosthetic device according to claim 1 , wherein said diverging conical section of said inner envelope comprises a flexible pliable material.
Claim 14
Dependent Claim
24 words
The prosthetic device according to claim 1 , wherein said diverging conical section of said inner envelope comprises a plurality of axially-extending reinforcing struts.
Claim 15
Dependent Claim
18 words
The prosthetic device according to claim 13 , wherein said reinforcing struts are hingedly connected to said support.
Claim 16
Dependent Claim
15 words
The prosthetic device according to claim 1 , wherein the support comprises a metal base.
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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) | 2011-09-30 | 2012-03-31 | 2012-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-09-30 | 2016-03-31 | 2016-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-09-30 | 2020-03-31 | 2020-09-30 | $7700.00 | Window Closed / Lapsed |