US7442204B2
Active / In Force
US
⏱️ 0.1 years remaining
Fluid flow prosthetic device
Assignee: Medtronic Ventor Technologies Ltd
•
Filing: 2006-11-22
•
Granted: 2008-10-28
•
Expires: 2026-11-22
Abstract
Abstract A prosthetic device including a valve-orifice attachment member attachable to a valve in a blood vessel and including a fluid inlet, and a diverging member that extends from the fluid inlet, the diverging member including a proximal end near the fluid inlet and a distal end distanced from the proximal end, wherein a distal portion of the diverging member has a larger cross-sectional area for fluid flow therethrough than a proximal portion thereof. The diverging member may have a diverging taper that causes fluid to flow therethrough with pressure recovery at the distal end thereof.
Inventors
- 👤 Ehud Schwammenthal
- 👤 Yosi Tuval
- 👤 Raphael Benary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/04; A61F2/06; A61F2/2427; A61F2/2436; A61F2/82; A61F2/848; A61F2002/068; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0014; A61F2250/0039
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
82 words
Prosthetic apparatus comprising: a support frame, configured for attachment to a native valve site of a patient, and shaped to define: a converging frame inlet section, and a diverging frame downstream section; and an envelope shaped to define: a converging envelope inlet, conforming generally to the converging frame inlet section, and a diverging envelope section, conforming generally to the diverging frame downstream section, supported by the frame, and configured to open and close in accordance with a cardiac cycle of the patient.
Claim 2
Dependent Claim
82 words
Prosthetic apparatus comprising: a support frame, configured for attachment to a native valve site of a patient, and shaped to define: a converging frame inlet section, and a diverging frame downstream section; and an envelope shaped to define: a converging envelope inlet, conforming generally to the converging frame inlet section, and a diverging envelope section, conforming generally to the diverging frame downstream section, supported by the frame, and configured to open and close in accordance with a cardiac cycle of the patient.
Claim 3
Dependent Claim
12 words
The apparatus according to claim 1 , wherein the frame is expandable.
Claim 4
Dependent Claim
16 words
The apparatus according to claim 1 , wherein the envelope is positioned inside of the frame.
Claim 5
Dependent Claim
29 words
The apparatus according to claim 1 , wherein the frame is configured so as to define a plurality of cells, respective configurations of which change as the frame expands.
Claim 6
Dependent Claim
65 words
The apparatus according to claim 1 , wherein the envelope covers a proximal portion of the diverging frame downstream section, and does not cover a distal portion of the diverging frame downstream section, and wherein at least a portion of the distal portion is configured to come in contact with an inner surface of a blood vessel in a vicinity of the native valve site.
Claim 7
Dependent Claim
43 words
The apparatus according to claim 1 , wherein the diverging envelope section is shaped so as to define a downstream outlet, and wherein the diverging envelope section is shaped so as to cause fluid to flow therethrough with pressure recovery at the outlet.
Claim 8
Dependent Claim
22 words
The apparatus according to claim 6 , wherein the diverging envelope section widens with a widening angle alpha of approximately 5-8 degrees.
Claim 9
Dependent Claim
23 words
The apparatus according to claim 1 , wherein the support frame defines an inner surface, and wherein the envelope lines the inner surface.
Claim 10
Dependent Claim
34 words
The apparatus according to claim 1 , wherein the frame comprises clasping members configured to clasp opposite sides of a native valve of the native valve site near an orifice of the native valve.
Claim 11
Dependent Claim
24 words
The apparatus according to claim 1 , wherein the frame comprises an annular clamp configured to engage native valve leaflets of the native valve.
Claim 12
Dependent Claim
51 words
The apparatus according to claim 1 , wherein the diverging frame downstream section defines a downstream outlet, and wherein the apparatus further comprises an annular array of bracing elements at the outlet configured to engage with an inner surface of a blood vessel in a vicinity of the native valve site.
Claim 13
Dependent Claim
14 words
The apparatus according to claim 1 , wherein the diverging envelope section is conical.
Claim 14
Dependent Claim
15 words
The apparatus according to claim 1 , wherein the diverging envelope section is curved convexly.
Claim 15
Dependent Claim
15 words
The apparatus according to claim 1 , wherein the diverging envelope section is curved concavely.
Claim 16
Dependent Claim
35 words
The apparatus according to claim 1 , wherein the frame comprises a plurality of axially-extending struts pivotally mounted near the converging envelope inlet and extending along at least a portion of the diverging envelope section.
Claim 17
Dependent Claim
78 words
The apparatus according to claim 1 , wherein the frame comprises a plurality of axially-extending struts, wherein the diverging envelope section comprises a plurality of portions thereof, each portion disposed between a respective pair of the struts, and wherein there is no structural member of the apparatus intervening between the portions of the diverging envelope section and blood of the patient within or outside the diverging envelope section, when the frame is attached to the native valve site.
Claim 18
Dependent Claim
33 words
The apparatus according to claim 1 , wherein the converging inlet is configured to be positioned within a left ventricle of the patient when the frame is attached to the native valve site.
Claim 19
Dependent Claim
23 words
The apparatus according to claim 1 , wherein the diverging envelope section is configured to function as a prosthetic valve by collapsing inwardly.
Claim 20
Dependent Claim
25 words
The apparatus according to claim 1 , wherein the diverging envelope section defines three portions thereof, which are disposed to collapse inwardly toward each other.
Claim 21
Dependent Claim
41 words
The apparatus according to claim 1 , wherein the diverging envelope section is shaped so as to define a downstream outlet, and wherein the diverging envelope section is shaped so as to produce a non-turbulent blood flow from the downstream outlet.
Claim 22
Independent Claim
98 words
A method, comprising: identifying a stenotic native valve site of a heart of a patient; and implanting at the native valve site: a support frame, configured for attachment to the native valve site, and shaped to define: a converging frame inlet section, and a diverging frame downstream section; and an envelope shaped to define: a converging envelope inlet, conforming generally to the converging frame inlet section, and a diverging envelope section, conforming generally to the diverging frame downstream section, supported by the frame, and configured to open and close in accordance with a cardiac cycle of the patient.
Claim 23
Independent Claim
98 words
A method, comprising: identifying a stenotic native valve site of a heart of a patient; and implanting at the native valve site: a support frame, configured for attachment to the native valve site, and shaped to define: a converging frame inlet section, and a diverging frame downstream section; and an envelope shaped to define: a converging envelope inlet, conforming generally to the converging frame inlet section, and a diverging envelope section, conforming generally to the diverging frame downstream section, supported by the frame, and configured to open and close in accordance with a cardiac cycle of the patient.
Claim 24
Dependent Claim
49 words
The method according to claim 21 , wherein the diverging envelope section is shaped so as to define a downstream outlet, and wherein implanting the envelope comprises placing the envelope in a manner that facilitates fluid to flow through the diverging envelope section with pressure recovery at the outlet.
Claim 25
Dependent Claim
34 words
The method according to claim 21 , wherein implanting the support frame comprises positioning the converging inlet within a left ventricle of the patient when the frame is attached to the native valve site.
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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) | 2011-10-28 | 2012-04-28 | 2012-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-10-28 | 2016-04-28 | 2016-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-10-28 | 2020-04-28 | 2020-10-28 | $7700.00 | Window Closed / Lapsed |