EP0819013B1
Expired / Lapsed
EP
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System for performing endovascular procedures
Assignee: Edwards Lifesciences AG
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Filing: 1996-03-11
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Granted: 2004-06-23
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Expires: 2016-03-11
Abstract
Abstract This invention is a system for inducing cardio-plegia arrest and performing an endovascular procedure within the heart or blood vessels of a patient. An endo-aortic partitioning catheter (10) has an inflatable balloon (11) which occludes the ascending aorta (12) when inflated. Cardio-plegia fluid may be infused through a lumen of the endo-aortic partitioning catheter (39) to stop the heart while the patient's circulatory system is supported on cardiopulmonary bypass. One or more endovascular devices (500) are introduced through an internal lumen (40) of the endo-aortic partitioning catheter (30) to perform a diagnostic or therapeutic endovascular procedure within the heart or blood vessels of the patient. Surgical procedures such as coronary artery bypass surgery or heart valve replacement may be performed in conjunction with the endovascular procedure while the heart is stopped. Embodiments of the system are described for performing, e.g., fiberoptic angioscopy of structures within the heart and its blood vessels, and valvuloplasty for correction of valvular stenosis.
Inventors
- 👤 John H. Stevens
- 👤 William S. Peters
- 👤 Wesley D. Sterman
- 👤 Hansen S. Gifford, Iii
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1011; A61M25/0021; A61M25/0041; A61M25/01; A61M25/0105; A61M25/0133; A61M2025/0161; A61M25/0152
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
205 words
A system for inducing cardioplegic arrest and
performing an endovascular procedure within the heart,
comprising: a) an elongated endovascular device for
performing the endovascular procedure, having proximal
and distal ends; and b) an elongated aortic catheter (10,212,330)
adapted to be advanced to a location within a patient's
ascending aorta (12,223), having proximal and distal
ends, having an expandable member (11,227,330)on a
distal portion thereof which when expanded within the
patient's ascending aorta occludes the passageway
therethrough between the coronary ostia and the
brachiocaphalic artery, and having at least one lumen
(40)connecting a proximal port at said proximal end of
said catheter with a distal port to said expandable
member, said lumen (40) being configured to allow said
endovascular device to be slidably positioned therein
with said distal end of said endovascular device
extending distally from said distal port, and the
expandable member when expanded positioning the distal
port so that the device extends therefrom for performing
the procedure within the heart, characterised in that said device comprises an electrophysiological mapping and ablation
catheter (660) for performing an electrophysiological
mapping and/or ablation of the heart of said patient,
said electrophysiology catheter being configured to be
slidably positioned within said lumen (40) of said
aortic catheter (10).
Claim 2
Dependent Claim
45 words
The system of claim 1, further comprising: c) a cardiopulmonary by-pass system (94)
including means to withdraw blood from a venous system
of the patient, means to oxygenate the withdrawn blood
and means to direct the oxygenated blood into the
arterial system of the patient.
Claim 3
Dependent Claim
28 words
The system of claim 2, further comprising: d) a means for infusing a cardioplegic agent
through said elongated aortic catheter (10,212,320) into
a coronary vasculature of said patient.
Claim 4
Dependent Claim
23 words
The system of claim 2, further comprising: e) a means for infusing a cardioplegic agent
retrograde into a coronary vasculature of said patient.
Claim 5
Dependent Claim
41 words
The system of claim 1, wherein said expandable
member (11,227,330) of said aortic catheter comprises an
inflatable balloon fluidly connected to an inflation
lumen extending from said inflatable balloon to an
inflation port at said proximal end of said aortic
catheter.
Claim 6
Dependent Claim
52 words
The system of claim 1, wherein said aortic
catheter comprises a flexible shaft having a preshaped
distal portion configured to conform generally to the
patient's aortic arch and a means for straightening said
distal portion of the shaft to facilitate introducing
the shaft into an artery downstream of the patient's
ascending aorta.
Claim 7
Dependent Claim
35 words
The system of claim 6, wherein the preshaped
distal portion of the shaft is generally U-shaped in an
unstressed condition to facilitate positioning the shaft
from an arterial location downstream of the patient's
aortic arch.
Claim 8
Dependent Claim
35 words
The system of claim 6, wherein the preshaped
distal portion of the shaft is generally S-shaped in an
unstressed condition to facilitate positioning the shaft
from an arterial location superior to the patient's
aortic arch.
Claim 9
Dependent Claim
26 words
The system of claim 6, wherein the preshaped
distal portion of the shaft has a radius of curvature in
the range of 20 to 80 mm.
Claim 10
Dependent Claim
40 words
The system of claim 6, wherein the preshaped
distal portion has a distal segment for positioning in
the ascending aorta and a proximal segment for
positioning in the descending aorta, the distal segment
being skewed relative to the proximal segment.
Claim 11
Dependent Claim
32 words
The system of claim 1, wherein said aortic
catheter comprises a shaft having a length of at least
80 cm to facilitate transluminal positioning from a
femoral artery to the ascending aorta.
Claim 12
Dependent Claim
28 words
The system of claim 1, wherein said lumen of
said aortic catheter has a diameter of at least about 2
mm to facilitate positioning said endovascular device
therethrough.
Claim 13
Dependent Claim
27 words
The system of claim 1, wherein said aortic
catheter comprises a flexible shaft having a preshaped
distal portion configured to engage a coronary ostium of
the patient.
Claim 14
Dependent Claim
38 words
The system of claim 1, wherein said aortic
catheter comprises a pressure monitoring lumen
connecting a proximal pressure monitoring port at said
proximal end of said catheter with a distal pressure
monitoring port distal to said expandable member.
Claim 15
Dependent Claim
38 words
The system of claim 1, wherein said aortic
catheter comprises a pressure monitoring lumen
connecting a proximal pressure monitoring port at said
proximal end of said catheter with a distal pressure
monitoring port distal to said expandable member.
Claim 16
Dependent Claim
38 words
The system of claim 1, further comprising a
hemostasis valve means at said proximal port of said
aortic catheter for allowing said endovascular device to
be introduced into said lumen of said aortic catheter
without loss of fluid.
References Cited (Backward Citations)
No citation records indexed.
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