US20040193253A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replacement venous valve
Assignee: Individual
•
Filing: 2002-04-30
•
Granted: —
•
Expires: 2022-04-30
Abstract
Abstract A replacement venous valve comprises a pair of support wings and a pair of valve wings. The valve wings are designed to deploy first from a catheter deployment device and provide stability while the support wings then deploy. The valve wings support the venous valve material and the support wings maintain patency of the vein above the valve while simultaneously anchoring the location and orientation of the valve.
Inventors
- 👤 Patricia Thorpe
- 👤 Francisco Osse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/2475
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
47 words
1 . A valve assembly, comprising: a first valve wing coupled to a first support wing; a second valve wing coupled to a second support wing; a first flexible sheet fastened to the first valve wing; and a second flexible sheet fastened to the second valve wing.
Claim 2
Dependent Claim
47 words
1 . A valve assembly, comprising: a first valve wing coupled to a first support wing; a second valve wing coupled to a second support wing; a first flexible sheet fastened to the first valve wing; and a second flexible sheet fastened to the second valve wing.
Claim 3
Dependent Claim
89 words
2 . The valve assembly of claim 1 , wherein: the first flexible sheet and the second flexible sheet have a first position in which a trailing portion of the first flexible sheet contacts a trailing portion of the second flexible sheet for preventing blood flow therepast; and the first flexible sheet and the second flexible sheet have a second position in which the trailing portion of the first flexible sheet and trailing portion of the second flexible sheet define an aperture for allowing blood flow through the valve.
Claim 4
Dependent Claim
26 words
3 . The valve assembly of claim 2 , wherein the first flexible sheet and the second flexible sheet are biased to assume the first position.
Claim 5
Dependent Claim
34 words
4 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing are biased to assume an expanded shape.
Claim 6
Dependent Claim
38 words
5 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing define a generally cylindrical surface when they assume the expanded shape.
Claim 7
Dependent Claim
37 words
6 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing each comprise a length of wire having a U-shaped bend.
Claim 8
Dependent Claim
34 words
7 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing are all formed from a single wire.
Claim 9
Dependent Claim
33 words
8 . The valve assembly of claim 1 , wherein a first end of the first valve wing is coupled to a first end of the first support wing by a first loop.
Claim 10
Dependent Claim
33 words
9 . The valve assembly of claim 1 , wherein a second end of the first valve wing is coupled to a second end of the second valve wing by a second loop.
Claim 11
Dependent Claim
33 words
10 . The valve assembly of claim 1 , wherein a first end of the second valve wing is coupled to a first end of the second support wing by a third loop.
Claim 12
Dependent Claim
33 words
11 . The valve assembly of claim 1 , wherein a second end of the second support wing is coupled to a second end of the first support wing by a fourth loop.
Claim 13
Dependent Claim
117 words
12 . The valve assembly of claim 1 , wherein: a first end of the first valve wing is coupled to a first end of the first support wing by a first loop; a second end of the first valve wing is coupled to a second end of the second valve wing by a second loop; a first end of the second valve wing is coupled to a first end of the second support wing by a third loop; the second support wing is coupled to a second end of the first support wing by a fourth loop; the first loop and the third loop are interlinked; and the second loop and the fourth loop are interlinked.
Claim 14
Dependent Claim
120 words
13 . The valve assembly of claim 1 , wherein; a first end of the first valve wing is coupled to a first end of the first support wing by a first bend; a second end of the first valve wing is coupled to a second end of the first support wing by a second bend; a first end of the second valve wing is coupled to a first end of the second support wing by a third bend; a second end of the second valve wing is coupled to a second end of the second support wing by a fourth bend; and the first valve wing is coupled to the second valve wing by at least one coupling member.
Claim 15
Dependent Claim
34 words
14 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing are biased to assume an expanded shape.
Claim 16
Dependent Claim
38 words
15 . The valve assembly of claim 14 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing define a generally cylindrical surface when they assume the expanded shape.
Claim 17
Dependent Claim
31 words
16 . The valve assembly of claim 14 , wherein the first valve wing and the second support wing define an first angle when the valve assembly assumes the expanded shape.
Claim 18
Dependent Claim
18 words
17 . The valve assembly of claim 16 wherein the first angle is about a 60 degree angle.
Claim 19
Dependent Claim
31 words
18 . The valve assembly of claim 14 , wherein the second valve wing and the first support wing define a second angle when the valve assembly assumes the expanded shape.
Claim 20
Dependent Claim
19 words
19 . The valve assembly of claim 16 , wherein the second angle is about a 60 degree angle.
Claim 21
Dependent Claim
31 words
20 . The valve assembly of claim 1 , wherein the first valve wing and the second valve wing define an third angle when the valve assembly assumes the expanded shape.
Claim 22
Dependent Claim
19 words
21 . The valve assembly of claim 18 , wherein the third angle is about a 60 degree angle.
Claim 23
Dependent Claim
129 words
22 . The valve assembly of claim 1 , wherein: the valve assembly has a length A and a radius B; the first flexible sheet is coupled to the first valve wing at a plurality of fixing points and the location of each fixing point may be defined by a polar coordinate values including a value Z corresponding to a z-axis, value R corresponding to an r-axis, and a value theta corresponding to an angle theta; a first fixing point of the first flexible sheet being located generally at theta=0, Z=0, and R=B; a second fixing point of the first flexible sheet being located generally at theta=180, Z=0, and R=B; and a third fixing point of the first flexible sheet being located generally at theta=90 degrees, Z=A, and R=B.
Claim 24
Dependent Claim
129 words
23 . The valve assembly of claim 1 , wherein: the valve assembly has a length A and a radius B; the second flexible sheet is coupled to the first valve wing at a plurality of fixing points and the location of each fixing point may be defined by a polar coordinate values including a value Z corresponding to a z-axis, value R corresponding to an r-axis, and a value theta corresponding to an angle theta; a first fixing point of the second flexible sheet being located generally at theta=0, Z=0, and R=B; a second fixing point of the second flexible sheet being located generally at theta=180, Z=0, and R=B; and a third fixing point of the second flexible sheet being located generally at theta=270 degrees, Z=A, and R=B.
Claim 25
Dependent Claim
26 words
24 . The valve assembly of claim 1 , wherein the first flexible sheet is coupled to the first valve wing by a plurality of sutures.
Claim 26
Dependent Claim
24 words
25 . The valve assembly of claim 1 , wherein the first flexible sheet is coupled to the first valve wing by a staple.
Claim 27
Dependent Claim
24 words
26 . The valve assembly of claim 1 , wherein the first flexible sheet is coupled to the first valve wing by a hook.
Claim 28
Dependent Claim
28 words
27 . The valve assembly of claim 1 , wherein at least a portion of one of the flexible sheets includes either sclera or small intestine sub-mucosa material.
Claim 29
Dependent Claim
32 words
28 . The valve assembly of claim 1 , wherein the first valve wing, the second valve wing, the first support wing, and the second support wing comprise a resilient metallic material.
Claim 30
Dependent Claim
23 words
29 . The valve assembly of claim 28 , in which the resilient metallic material is selected from either nitinol or stainless steel.
Claim 31
Dependent Claim
23 words
30 . The valve assembly of claim 1 , wherein at least a portion of one of the flexible sheets includes mammalian tissue.
Claim 32
Dependent Claim
51 words
31 . The valve assembly of claim 1 , wherein the first valve wing and the first support wing are formed from a first wire, the second valve wing and the second support wing are formed from a second wire and the two parts are joined by a plurality of connectors.
Claim 33
Dependent Claim
33 words
32 . The valve assembly of claim 1 where the expanded shape has a circumference larger than the circumference of the selected vascular lumen thereby inhibiting the assembly's movement from its desired position.
Claim 34
Dependent Claim
54 words
33 . A method of using the valve assembly comprising the following steps: a. inserting a delivery system containing the valve assembly into the vascular system; b. deploying at least one replacement valve assembly at a selected site within a vein with a first valve wing pair and then a second support wing pair.
Claim 35
Dependent Claim
54 words
33 . A method of using the valve assembly comprising the following steps: a. inserting a delivery system containing the valve assembly into the vascular system; b. deploying at least one replacement valve assembly at a selected site within a vein with a first valve wing pair and then a second support wing pair.
References Cited (Backward Citations)
US4655773A
Cited
US4994007A
Cited
US5469868A
Cited
US6656222B2
Cited
US5957949A
Cited
US6231602B1
Cited
US20010039450A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.