Patent US7201772B2 successfully refreshed from Google Patents.
US7201772B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow prosthetic device
Assignee: Medtronic Ventor Technologies Ltd
•
Filing: 2004-12-30
•
Granted: 2007-04-10
•
Expires: 2024-12-30
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
2026-10-24 22:32
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: 17
Claim 1
Independent Claim
188 words
A prosthetic device, comprising: a valve-orifice attachment member at an upstream end of said prosthetic device, said valve-orifice attachment member configured for attachment to a native valve site of a patient; a diverging blood flow pathway, comprising a pathway fluid inlet coupled to said valve-orifice attachment member, said pathway configured to flex between an open position thereof and a closed position thereof in response to a cardiac cycle of said patient, said diverging blood flow pathway defining a single blood flow field that extends downstream from said pathway fluid inlet, said pathway fluid inlet having at its narrowest cross-section a first cross-sectional area for blood flow therethrough, said pathway comprising an outlet having a second cross-sectional area at a downstream end of said prosthetic device; and a pathway support configured for attachment to said pathway, and that is operative, when attached to said pathway, generally to maintain a diverging configuration of said diverging blood flow pathway, wherein, regardless of whether said pathway support is attached to said pathway, said second cross-sectional area is greater than said first cross-sectional area when said pathway is in said open position thereof.
Claim 2
Dependent Claim
188 words
A prosthetic device, comprising: a valve-orifice attachment member at an upstream end of said prosthetic device, said valve-orifice attachment member configured for attachment to a native valve site of a patient; a diverging blood flow pathway, comprising a pathway fluid inlet coupled to said valve-orifice attachment member, said pathway configured to flex between an open position thereof and a closed position thereof in response to a cardiac cycle of said patient, said diverging blood flow pathway defining a single blood flow field that extends downstream from said pathway fluid inlet, said pathway fluid inlet having at its narrowest cross-section a first cross-sectional area for blood flow therethrough, said pathway comprising an outlet having a second cross-sectional area at a downstream end of said prosthetic device; and a pathway support configured for attachment to said pathway, and that is operative, when attached to said pathway, generally to maintain a diverging configuration of said diverging blood flow pathway, wherein, regardless of whether said pathway support is attached to said pathway, said second cross-sectional area is greater than said first cross-sectional area when said pathway is in said open position thereof.
Claim 3
Dependent Claim
35 words
The prosthetic device according to claim 1 , wherein said diverging blood flow pathway is shaped so as to define a diverging taper that causes fluid to flow therethrough with pressure recovery at said outlet.
Claim 4
Dependent Claim
21 words
The prosthetic device according to claim 2 , wherein said taper widens with a widening angle α from 0.1° to 50°.
Claim 5
Dependent Claim
20 words
The prosthetic device according to claim 2 , wherein said taper widens with a widening angle α of approximately 5–8°.
Claim 6
Dependent Claim
24 words
The prosthetic device according to claim 1 , wherein said diverging blood flow pathway comprises an inner envelope that lines an inner surface thereof.
Claim 7
Dependent Claim
35 words
The prosthetic device according to claim 1 , comprising a base section to which said valve-orifice attachment member is coupled, wherein said base section is coupled to said pathway fluid inlet and is non-divergent downstream.
Claim 8
Dependent Claim
15 words
The prosthetic device according to claim 6 , wherein said base section is convergent downstream.
Claim 9
Dependent Claim
37 words
The prosthetic device according to claim 1 , wherein said valve-orifice attachment member comprises clasping members adapted to clasp opposite sides of a native valve of said native valve site near an orifice of said native valve.
Claim 10
Dependent Claim
27 words
The prosthetic device according to claim 1 , wherein said valve-orifice attachment member comprises an annular clamp adapted to engage native valve leaflets of said native valve.
Claim 11
Dependent Claim
37 words
The prosthetic device according to claim 1 , further comprising an annular array of bracing elements at said outlet of said diverging blood flow pathway engageable with an inner surface of a blood vessel of said patient.
Claim 12
Dependent Claim
16 words
The prosthetic device according to claim 1 , wherein said diverging blood flow pathway is conical.
Claim 13
Dependent Claim
17 words
The prosthetic device according to claim 1 , wherein said diverging blood flow pathway is curved convexly.
Claim 14
Dependent Claim
17 words
The prosthetic device according to claim 1 , wherein said diverging blood flow pathway is curved concavely.
Claim 15
Dependent Claim
35 words
The prosthetic device according to claim 1 , further comprising a plurality of axially-extending struts pivotally mounted near the valve-orifice attachment member and extending through at least a portion of said diverging blood flow pathway.
Claim 16
Dependent Claim
23 words
The prosthetic device according to claim 1 , wherein said valve-orifice attachment member comprises an inner envelope that lines an inner surface thereof.
Claim 17
Dependent Claim
85 words
The prosthetic device according to claim 1 , wherein said pathway support comprises a plurality of axially-extending struts, wherein said diverging blood flow pathway comprises a plurality of portions thereof, each portion disposed between a respective pair of said struts, and wherein there is no structural member of said prosthetic device intervening between the portions of said diverging blood flow pathway and blood of said patient within or outside said diverging blood flow pathway, when said valve-orifice attachment member is attached to said valve site.
References Cited (Backward Citations)
US4078268A
Cited
US4491986A
Cited
US4846830A
Cited
US6168614B1
Cited
US5411552A
Cited
US5840081A
Cited
US5108425A
Cited
US5344442A
Cited
US5354330A
Cited
US5332402A
Cited
US5178632A
Cited
US5908452A
Cited
US6908481B2
Cited
US5908451A
Cited
US5964405A
Cited
US6091042A
Cited
US6076742A
Cited
US6287339B1
Cited
US20030130727A1
Cited
US6312465B1
Cited
US7018406B2
Cited
US6830584B1
Cited
US20040210304A1
Cited
US6458153B1
Cited
US20040106976A1
Cited
US20030023300A1
Cited
US7018408B2
Cited
US6652578B2
Cited
US6682559B2
Cited
US6454799B1
Cited
US20020026233A1
Cited
US20020186558A1
Cited
US20030130729A1
Cited
US20030171805A1
Cited
US20040044402A1
Cited
US6875231B2
Cited
US20040059429A1
Cited
US20040186563A1
Cited
US20040260389A1
Cited
WO2005002466A2
Cited
US20050075720A1
Cited
US20050096734A1
Cited
US20050137688A1
Cited
US20060058872A1
Cited
US20050137690A1
Cited
US20050137691A1
Cited
US20050182483A1
Cited
US20050197695A1
Cited
US20050240200A1
Cited
US20060025857A1
Cited
US20060025855A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-04-09 | 2010-10-09 | 2011-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-04-09 | 2014-10-09 | 2015-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-04-09 | 2018-10-09 | 2019-04-10 | $7700.00 | Window Closed / Lapsed |