US20030109924A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implanting a valve prosthesis in body channels
Assignee: Edwards Lifesciences PVT Inc
•
Filing: 2002-07-23
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Granted: —
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Expires: 2022-07-23
Abstract
Abstract A valve prosthesis which is especially useful in the case of aortic stenosis and capable of resisting the powerful recoil force and to stand the forceful balloon inflation performed to deploy the valve and to embed it in the stenotic aortic annulus, comprises a collapsible valvular structure and an expandable frame on which said valvular structure is mounted. The valvular structure is composed of physiologically compatible valvular tissue that is sufficiently supple and resistant to allow the valvular structure to be deformed from a closed state to an opened state. The valvular tissue forms a continuous surface. The valve prosthesis can be delivered percutaneously, surgically, or endoscopically.
Inventors
- 👤 Alain Cribier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2415; A61F2/2409; A61F2/2418; A61F2/2427; A61F2/243; A61F2/2433; A61B; A61B90/00; A61B90/39; A61F2/2475; A61F2220/00; A61F2220/0008; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2230/0063; A61F2230/0069; A61F2250/00; A61F2250/0058; A61F2250/006; Y; Y10; Y10S; Y10S623/00; Y10S623/90; Y10S623/902; Y10S623/904
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
188 words
1 . A method of surgically or endoscopically implanting a valve prosthesis, which comprises the steps of: (a) surgically or endoscopically providing access to a patient's vasculature; (b) advancing a first balloon dilatation catheter having distal and proximal ends and having a deflated first dilatation balloon adjacent the catheter distal end into the patient's vasculature to position said first dilatation balloon within to a stenotic valve and annulus; (c) inflating said first dilatation balloon to dilate the stenotic valve; (d) deflating said first dilatation balloon and withdrawing said deflated balloon in the proximal direction; (e) advancing a second dilatation catheter having distal and proximal ends and having a second deflated dilatation balloon adjacent the catheter distal end, wherein said second balloon has a valve prosthesis arranged circumferentially around said second dilatation balloon, into the patient's vasculature to position said second dilatation balloon and said valve prosthesis adjacent to the previously dilated stenotic valve; (f) inflating said second dilatation balloon to cause said valve prosthesis to adhere to said aortic valve and annulus; and (g) deflating said second dilatation balloon and withdrawing said second catheter in the proximal direction.
Claim 2
Dependent Claim
188 words
1 . A method of surgically or endoscopically implanting a valve prosthesis, which comprises the steps of: (a) surgically or endoscopically providing access to a patient's vasculature; (b) advancing a first balloon dilatation catheter having distal and proximal ends and having a deflated first dilatation balloon adjacent the catheter distal end into the patient's vasculature to position said first dilatation balloon within to a stenotic valve and annulus; (c) inflating said first dilatation balloon to dilate the stenotic valve; (d) deflating said first dilatation balloon and withdrawing said deflated balloon in the proximal direction; (e) advancing a second dilatation catheter having distal and proximal ends and having a second deflated dilatation balloon adjacent the catheter distal end, wherein said second balloon has a valve prosthesis arranged circumferentially around said second dilatation balloon, into the patient's vasculature to position said second dilatation balloon and said valve prosthesis adjacent to the previously dilated stenotic valve; (f) inflating said second dilatation balloon to cause said valve prosthesis to adhere to said aortic valve and annulus; and (g) deflating said second dilatation balloon and withdrawing said second catheter in the proximal direction.
Claim 3
Dependent Claim
39 words
2 . The method of claim 1 , wherein prior to step (b), a guidewire having a distal end is advanced distally into the patient's vasculature until the guidewire distal end is adjacent or distal to the stenotic valve.
Claim 4
Dependent Claim
26 words
3 . The method of claim 2 , wherein in steps (b) and (e) the first and second balloon catheters, respectively, are advanced over the guidewire.
Claim 5
Dependent Claim
22 words
4 . The method of claim 1 , wherein in step (c) the first dilatation balloon is inflated to a high pressure.
Claim 6
Dependent Claim
16 words
5 . The method of claim 4 , wherein the pressure is greater than 4 atm.
Claim 7
Dependent Claim
22 words
6 . The method of claim 4 , wherein the first dilatation balloon is inflated maximally up to the balloon's bursting point.
Claim 8
Dependent Claim
16 words
7 . The method of claim 4 , wherein the inflation lasts only a few seconds.
Claim 9
Dependent Claim
33 words
8 . The method of claim 1 , wherein inflating the dilatation balloon in step (c) tests the stenotic aortic valve for efficacy of the procedure and creates an aperture in the valve.
Claim 10
Dependent Claim
22 words
9 . The method of claim 1 , wherein in step (f) the second dilatation balloon is inflated to a high pressure.
Claim 11
Dependent Claim
30 words
10 . The method of claim 9 , wherein the second dilatation balloon is inflated to a pressure less than the pressure to which the first dilatation balloon is inflated.
Claim 12
Dependent Claim
23 words
11 . The method of claim 9 , wherein the pressure is less than 4 atm and does not damage the valve prosthesis.
Claim 13
Dependent Claim
16 words
12 . The method of claim 9 , wherein the inflation lasts only a few seconds.
Claim 14
Dependent Claim
21 words
13 . The method of claim 1 , wherein the valve prosthesis needs only a light pressure for its own expansion.
Claim 15
Dependent Claim
20 words
14 . The method of claim 1 , wherein the patient's vasculature is accessed surgically and a thoracotomy is performed.
Claim 16
Dependent Claim
15 words
15 . The method of claim 1 , wherein the patient's vasculature is accessed endoscopically.
Claim 17
Dependent Claim
18 words
16 . The method of claim 15 , wherein the IV is introduced through a trocar or cannula.
Claim 18
Dependent Claim
13 words
17 . The method of claim 1 , wherein an artery is accessed.
Claim 19
Dependent Claim
13 words
18 . The method of claim 1 , wherein a vein is accessed.
Claim 20
Dependent Claim
15 words
19 . The method of claim 1 , wherein the valve is an aortic valve.
Claim 21
Dependent Claim
14 words
20 . The method of claim 1 , wherein the subclavian artery is accessed.
Claim 22
Dependent Claim
14 words
21 . The method of claim 1 , wherein no cardiopulmonary bypass is used.
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