US5433700A
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Method for intraluminally inducing cardioplegic arrest and catheter for use therein
Assignee: Edwards Lifesciences LLC
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Filing: 1993-11-30
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Granted: 1995-07-18
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Expires: 2013-11-30
Abstract
Abstract A process for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising maintaining the patient's systemic circulation by peripheral cardiopulmonary by-pass, occluding the ascending aorta through a percutaneously placed arterial balloon catheter, venting the left side of the heart, and introducing a cardioplegic agent into the coronary circulation. This procedure readies the heart for a variety of surgical procedures that can be performed percutaneously through lumina in the catheter. An aortic catheter for use in the process is also described.
Inventors
- 👤 William S. Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:28
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61B; A61B18/00; A61B2018/00053; A61B2018/00214; A61B2018/0022; A61B2018/00232; A61B2018/0025; A61B2018/00261; A61M25/01; A61M25/02; A61M2025/028; A61M25/10; A61M2025/1043; A61M2025/1052; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/047; A61M2205/00; A61M2205/33; A61M2205/3331; A61M2205/3344; A61M2205/3355; A61M2210/00; A61M2210/12; A61M2210/127; A61M25/0032
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
102 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) maintaining systemic circulation with peripheral cardiopulmonary by-pass; (b) occluding at least one of the patient's vena cavae with an inflatable cuff on a distal portion of at least one percutaneously placed venous catheter to isolate a fight atrium of the heart from at least a portion of the patient's venous system; (c) occluding the ascending aorta through a percutaneously placed arterial balloon catheter; (d) introducing a cardioplegic agent into the coronary circulation; and (e) venting the heart through a percutaneously placed catheter.
Claim 2
Independent Claim
102 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) maintaining systemic circulation with peripheral cardiopulmonary by-pass; (b) occluding at least one of the patient's vena cavae with an inflatable cuff on a distal portion of at least one percutaneously placed venous catheter to isolate a fight atrium of the heart from at least a portion of the patient's venous system; (c) occluding the ascending aorta through a percutaneously placed arterial balloon catheter; (d) introducing a cardioplegic agent into the coronary circulation; and (e) venting the heart through a percutaneously placed catheter.
Claim 3
Dependent Claim
27 words
A method as claimed in claim 1 in which the ascending aorta is occluded by an arterial balloon catheter percutaneously placed through one of the fernoral arteries.
Claim 4
Dependent Claim
21 words
A method as claimed in claim 2 wherein the cardioplegic agent is introduced through a lumen in the arterial balloon catheter.
Claim 5
Dependent Claim
30 words
A method as claimed in claim 1 further comprising introducing a fluid into the right atrium through a lumen in a percutaneous venous catheter which opens between the two cuffs.
Claim 6
Dependent Claim
22 words
A method as claimed in claim 1 in which the percutaneous venous catheter is introduced into the heart through a femoral vein.
Claim 7
Dependent Claim
32 words
A method as claimed in claim 1 in which the systemic circulation is maintained through a cardiopulmonary by-pass that includes an oxygenated blood return catheter introduced into one of the femoral arteries.
Claim 8
Dependent Claim
28 words
A method as claimed in claim 1 wherein the vena cavae are occluded with two inflatable cuffs, each inflatable cuff being on a separate percutaneously placed venous catheter.
Claim 9
Dependent Claim
26 words
A method as claimed in claim 1 wherein the vena cavae are occluded with two inflatable cuffs both disposed on a single percutaneously placed venous catheter.
Claim 10
Dependent Claim
40 words
A method as claimed in claim 1 further comprising withdrawing venous blood from at least one vena cava through a lumen in at least one of the percutaneously placed venous catheters and directing the venous blood to the cardiopulmonary by-pass.
Claim 11
Dependent Claim
12 words
A method as claimed in claim 4 wherein the fluid comprises saline.
Claim 12
Dependent Claim
29 words
A method as claimed in claim 1 wherein oxygenated blood is returned from the cardiopulmonary bypass to the patient's arterial system through a lumen in the arterial balloon catheter.
Claim 13
Dependent Claim
23 words
A method as claimed in claim 1 wherein the heart is vented by withdrawing fluid through a lumen in the arterial balloon catheter.
Claim 14
Dependent Claim
24 words
A method as claimed in claim 1 further comprising introducing an instrument through a lumen in the arterial balloon catheter into the patient's heart.
Claim 15
Dependent Claim
23 words
A method as claimed in claim 13 wherein the instrument comprises a scope, the method further comprising visualizing the heart with the scope.
Claim 16
Dependent Claim
31 words
A method as claimed in claim 13 wherein the instrument comprises a cannula having a lumen, the method further comprising venting fluids from the heart through the lumen in the cannula.
Claim 17
Independent Claim
166 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) positioning a percutaneously placed venous catheter in at least a portion of both of the patient's vena cavae and in a right atrium of the heart; (b) occluding a superior vena cavae with a first inflatable cuff on a distal portion of the percutaneously placed venous catheter and occluding an inferior vena cavae with a second inflatable cuff on a distal portion of the percutaneously placed venous catheter to isolate the heart from at least a portion of the patient's venous system; (c) withdrawing blood from the venous system through a lumen in the venous catheter; (d) oxygenating the blood withdrawn from the venous system; (e) returning the oxygenated blood to the patient's arterial system; (f) occluding the ascending aorta through a percutaneously placed arterial balloon catheter; (g) introducing a cardioplegic agent into the coronary circulation; and (h) venting the heart through a percutaneously placed catheter.
Claim 18
Independent Claim
166 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) positioning a percutaneously placed venous catheter in at least a portion of both of the patient's vena cavae and in a right atrium of the heart; (b) occluding a superior vena cavae with a first inflatable cuff on a distal portion of the percutaneously placed venous catheter and occluding an inferior vena cavae with a second inflatable cuff on a distal portion of the percutaneously placed venous catheter to isolate the heart from at least a portion of the patient's venous system; (c) withdrawing blood from the venous system through a lumen in the venous catheter; (d) oxygenating the blood withdrawn from the venous system; (e) returning the oxygenated blood to the patient's arterial system; (f) occluding the ascending aorta through a percutaneously placed arterial balloon catheter; (g) introducing a cardioplegic agent into the coronary circulation; and (h) venting the heart through a percutaneously placed catheter.
Claim 19
Independent Claim
87 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) maintaining systemic circulation with peripheral cardiopulmonary bypass; (b) isolating a fight atrium of the patient's heart from the patient's venous system with at least one percutaneously placed venous catheter; (c) isolating a coronary vasculature from the patient's arterial system with a percutaneously placed arterial balloon catheter; (d) introducing a cardioplegic agent into the coronary vasculature; and (e) venting fluid from the heart through a percutaneously placed catheter.
Claim 20
Independent Claim
87 words
A method for inducing cardioplegic arrest of a heart in situ in a patient's body, comprising the steps of: (a) maintaining systemic circulation with peripheral cardiopulmonary bypass; (b) isolating a fight atrium of the patient's heart from the patient's venous system with at least one percutaneously placed venous catheter; (c) isolating a coronary vasculature from the patient's arterial system with a percutaneously placed arterial balloon catheter; (d) introducing a cardioplegic agent into the coronary vasculature; and (e) venting fluid from the heart through a percutaneously placed catheter.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |