Patent GB190723081A successfully refreshed from Google Patents.
US20050043781A1
Expired / Lapsed
US
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Methods and devices providing transmyocardial blood flow to the arterial vascular system of the heart
Assignee: Individual
•
Filing: 2004-10-08
•
Granted: —
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Expires: 2024-10-08
Abstract
Abstract This invention relates to methods and devices providing transmyocardial blood flow or coronary revascularization for the treatment of coronary atherosclerosis and resulting myocardial ischemia by increasing the flow of blood from one or more oxygenated blood sources within the patient to one or more sites selected in the arterial vascular system of the heart using a channel for maintaining and regulating blood flow therebetween. A valved conduit or a self-maintained channel is created between the left ventricle reservoir of oxygenated blood and the coronary artery distal to an area of obstruction by surgical and percutaneous methods. Preferably, the conduit or self-maintained channel integrally regulates the flow of blood between the oxygenated blood source and the site selected in the arterial vascular system of the heart wherein an increase in blood flow is desired.
Inventors
- 👤 Mark Foley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2493; A61F2/82; A61F2/94; H; H04; H04L; H04L41/00; H04L43/00; H04M; H04M3/00; H04M3/22; H04M3/2281; H04M7/00; H04M7/006; A61B; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B18/00; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
93 words
1 . A method for increasing the flow of blood to a selected site in a patient's arterial vascular system of the heart, the method comprising the steps of: creating a channel for blood flow from an oxygenated blood source to the selected site in the arterial vascular system of the heart; maintaining the channel in an open position for blood flow through diastolic and systolic cycles of the heart; and regulating the blood flow in the channel to minimize blood flow from the coronary vascular system to the blood source during diastole.
Claim 2
Dependent Claim
93 words
1 . A method for increasing the flow of blood to a selected site in a patient's arterial vascular system of the heart, the method comprising the steps of: creating a channel for blood flow from an oxygenated blood source to the selected site in the arterial vascular system of the heart; maintaining the channel in an open position for blood flow through diastolic and systolic cycles of the heart; and regulating the blood flow in the channel to minimize blood flow from the coronary vascular system to the blood source during diastole.
Claim 3
Dependent Claim
26 words
2 . The method of claim 1 wherein the creating step includes perforating and dilating the tissue surrounding the blood source to create the channel therein.
Claim 4
Dependent Claim
32 words
3 . The method of claim 1 wherein the creating step includes removing tissue to form an aperture completely through the tissue surrounding the blood source to partially create the channel therein.
Claim 5
Dependent Claim
24 words
4 . The method of claim 1 wherein the creating step includes exposing at least a portion of the patient's heart for surgical access.
Claim 6
Dependent Claim
23 words
5 . The method of claim 1 wherein the creating step includes advancing a delivery device to the tissue surrounding the blood source.
Claim 7
Dependent Claim
25 words
6 . The method of claim 1 wherein the blood source is the left ventricle and the tissue surrounding the blood source is the myocardium.
Claim 8
Dependent Claim
16 words
7 . The method of claim 1 wherein the method includes more than one blood source.
Claim 9
Dependent Claim
20 words
8 . The method of claim 1 wherein the method includes more than one site in the arterial vascular system.
Claim 10
Dependent Claim
24 words
9 . The method of claim 1 wherein the method includes selecting a site in the arterial vascular system distal to an obstruction therein.
Claim 11
Dependent Claim
101 words
10 . A method for performing a transmyocardial coronary revascularization procedure for the treatment of coronary atherosclerosis caused by an obstruction in the arterial vascular system, the method comprising the steps of: creating a channel for blood flow from an oxygenated blood source to the arterial vascular system distal to the area of obstruction; maintaining the channel in an open position for blood flow through the diastole and systole cycles of the heart; and regulating the blood flow in the channel to minimize blood flow from the arterial vascular system to the blood source during the diastolic cycle of the heart.
Claim 12
Dependent Claim
101 words
10 . A method for performing a transmyocardial coronary revascularization procedure for the treatment of coronary atherosclerosis caused by an obstruction in the arterial vascular system, the method comprising the steps of: creating a channel for blood flow from an oxygenated blood source to the arterial vascular system distal to the area of obstruction; maintaining the channel in an open position for blood flow through the diastole and systole cycles of the heart; and regulating the blood flow in the channel to minimize blood flow from the arterial vascular system to the blood source during the diastolic cycle of the heart.
Claim 13
Dependent Claim
26 words
11 . The method of claim 10 wherein the creating step includes perforating and dilating the tissue surrounding the blood source to create the channel therein.
Claim 14
Dependent Claim
32 words
12 . The method of claim 10 wherein the creating step includes removing tissue to form an aperture completely through the tissue surrounding the blood source to partially create the channel therein.
Claim 15
Dependent Claim
24 words
13 . The method of claim 10 wherein the creating step includes exposing at least a portion of the patient's heart for surgical access.
Claim 16
Dependent Claim
23 words
14 . The method of claim 10 wherein the creating step includes advancing a delivery device to the tissue surrounding the blood source.
Claim 17
Dependent Claim
25 words
15 . The method of claim 10 wherein the blood source is the left ventricle and the tissue surrounding the blood source is the myocardium.
Claim 18
Dependent Claim
16 words
16 . The method of claim 10 wherein the method includes more than one blood source.
Claim 19
Dependent Claim
20 words
17 . The method of claim 10 wherein the method includes more than one site in the arterial vascular system.
Claim 20
Dependent Claim
24 words
18 . The method of claim 10 wherein the method includes selecting a site in the arterial vascular system distal to an obstruction therein.
Claim 21
Dependent Claim
114 words
19 . A method for treating an obstruction in a patient's cardiovascular system using a non-expandable conduit made of biocompatible material, the method comprising the steps of: inserting the conduit completely through the myocardium of the patient's heart with one end of the conduit extending into the left ventricle and the other end of the conduit extending into the arterial vascular system distal to the area of obstruction; maintaining the conduit in an open position for blood flow through the diastolic and systolic cycles of the heart; regulating the blood flow in the channel to minimize blood flow from the arterial vascular system to the left ventricle during the diastolic cycle of the heart.
Claim 22
Dependent Claim
114 words
19 . A method for treating an obstruction in a patient's cardiovascular system using a non-expandable conduit made of biocompatible material, the method comprising the steps of: inserting the conduit completely through the myocardium of the patient's heart with one end of the conduit extending into the left ventricle and the other end of the conduit extending into the arterial vascular system distal to the area of obstruction; maintaining the conduit in an open position for blood flow through the diastolic and systolic cycles of the heart; regulating the blood flow in the channel to minimize blood flow from the arterial vascular system to the left ventricle during the diastolic cycle of the heart.
Claim 23
Dependent Claim
26 words
20 . The method of claim 19 wherein the inserting step includes perforating and dilating the tissue surrounding the blood source to create the channel therein.
Claim 24
Dependent Claim
5 words
21 - 38 . Canceled
Claim 25
Dependent Claim
5 words
21 - 38 . Canceled
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