EP0277367A1
Expired / Lapsed
EP
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Perfusion type balloon dilatation catheter and apparatus
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1987-12-30
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Granted: —
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Expires: 2007-12-30
Abstract
Abstract Perfusion-type balloon dilatation apparatus having a guiding catheter (12) with proximal and distal extremities (16, 17) and with a flow passage (18) extending therethrough. A balloon dilatation catheter (76) is disposed in the guiding catheter (12). The balloon dilatation catheter (76) is comprised of a flexible elongate tubular member (77) having proximal and distal extremities (78, 79) and having a first lumen (91) extending therethrough. First and second inflatable balloons (82, 83) are carried by the tubular member (77) and having their interiors (84, 87) in communication with the first lumen (81) in the tubular member (77). The first balloon (82) is positioned with the guiding catheter (12). The second balloon (83) is positioned adjacent the distal extremity (79) of the tubular member (77). A second lumen (91) is carried by the tubular member (77) and extends through the first and second balloons (82, 83) and through the distal extremity (79) of the tubular member (77). The second lumen (91) has an opening (92) proximal of the first balloon (82) and opens into the interior of the guiding catheter (12). An adapter (21) is carried by the proximal extremity (16) of the guiding catheter (12) and provides a liquid-tight seal between the guiding catheter (12) and the dilatation catheter (76) and also provides an inlet through which liquid can be introduced so that it can travel through the flow passage (18) in the guiding catheter (12) and into the second lumen (91) carried by the dilatation catheter (76) so that the liquid can flow through the second lumen (91) beyond the second inflatable balloon (83).
Inventors
- 👤 Michael J. Horzewski
- 👤 Richard L. Mueller, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 00:50
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1011; A61M2025/1043; A61M2025/1052; A61M2025/1095; A61M25/01; A61M25/06; A61M25/0662
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
216 words
In a perfusion-type balloon dilatation apparatus, a guiding catheter having proximal and distal extremities and having a flow passage extending therethrough, a balloon dilatation catheter disposed in the guiding catheter, the balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal extremities and having a first lumen extending therethrough, first and second inflatable balloons carried by the tubular member and having their interiors in communication with the first lumen in the tubular member, the first balloon being positioned within the guiding catheter, the second balloon being positioned adjacent the distal extremity of the tubular member, a second lumen carried by the tubular member extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and opening into the interior of the guiding catheter and an adapter carried by the proximal extremity of the guiding catheter and providing a liquid-tight seal between the guiding catheter and the dilation catheter and also providing an inlet through which liquid can be introduced so that it can travel through the flow passage in the guiding catheter and into the second lumen carried by the dilatation catheter so that the liquid can flow through the second lumen beyond the second inflatable balloon.
Claim 2
Dependent Claim
216 words
In a perfusion-type balloon dilatation apparatus, a guiding catheter having proximal and distal extremities and having a flow passage extending therethrough, a balloon dilatation catheter disposed in the guiding catheter, the balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal extremities and having a first lumen extending therethrough, first and second inflatable balloons carried by the tubular member and having their interiors in communication with the first lumen in the tubular member, the first balloon being positioned within the guiding catheter, the second balloon being positioned adjacent the distal extremity of the tubular member, a second lumen carried by the tubular member extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and opening into the interior of the guiding catheter and an adapter carried by the proximal extremity of the guiding catheter and providing a liquid-tight seal between the guiding catheter and the dilation catheter and also providing an inlet through which liquid can be introduced so that it can travel through the flow passage in the guiding catheter and into the second lumen carried by the dilatation catheter so that the liquid can flow through the second lumen beyond the second inflatable balloon.
Claim 3
Dependent Claim
67 words
Apparatus as claimed in Claim 1 together with a guide wire extending through the second lumen having proximal and distal extremities, the distal extremity of the guide wire being adapted to extend beyond the distal extremity of the tubular member of the dilatation catheter, the proximal extremity of the same being adapted to extend beyond the proximal extremity of the flexible elongate member of the dilatation catheter.
Claim 4
Dependent Claim
46 words
Apparatus as claimed in Claim 2 wherein the guide wire extends out of the opening for the second lumen and extends rearwardly along the length of the elongate tubular member of the dilatation catheter to a region beyond the proximal extremity of the balloon dilatation catheter.
Claim 5
Dependent Claim
52 words
Apparatus as claimed in Claim 3 together with a slit sheath closing the first tubular member in the region of the proximal extremity of the same and also enclosing at least a portion of the guide wire extending from the opening in the second lumen through the proximal extremity of the same.
Claim 6
Dependent Claim
35 words
Apparatus as claimed in Claim 2 wherein the second lumen extends to the proximal extremity of the flexible elongate member and wherein the guide wire extends through the second lumen to the proximal extremity thereof.
Claim 7
Dependent Claim
29 words
Apparatus as claimed in any one of Claims 1-5 wherein said first balloon is of relatively short length and is disposed near the distal extremity of the guiding catheter.
Claim 8
Dependent Claim
29 words
Apparatus as claimed in Claim 6 wherein the first balloon has a size sufficient so that when it is inflated it occludes the flow passage in the guiding catheter.
Claim 9
Dependent Claim
194 words
In a balloon dilatation catheter for use in a guiding catheter of the type having a flow passage extending therethrough, the balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal extremities and having a first lumen extending therethrough, first and second inflatable balloons carried by the tubular member and having interiors in communication with the lumen in the tubular member, the first balloon being positioned in a spaced-apart position from the second balloon so that it is adapted to be positioned within a guiding catheter when the balloon dilatation catheter is disposed in the guiding catheter, the first balloon having a size so that when it is inflated, it will occlude the flow passage in the guiding catheter, the second balloon being disposed adjacent the distal extremity of the flexible tubular member, a second lumen carried by the tubular member and extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and an adapter carried by the proximal extremity of the tubular member and having an arm in communication with the first lumen.
Claim 10
Dependent Claim
194 words
In a balloon dilatation catheter for use in a guiding catheter of the type having a flow passage extending therethrough, the balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal extremities and having a first lumen extending therethrough, first and second inflatable balloons carried by the tubular member and having interiors in communication with the lumen in the tubular member, the first balloon being positioned in a spaced-apart position from the second balloon so that it is adapted to be positioned within a guiding catheter when the balloon dilatation catheter is disposed in the guiding catheter, the first balloon having a size so that when it is inflated, it will occlude the flow passage in the guiding catheter, the second balloon being disposed adjacent the distal extremity of the flexible tubular member, a second lumen carried by the tubular member and extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and an adapter carried by the proximal extremity of the tubular member and having an arm in communication with the first lumen.
Claim 11
Dependent Claim
20 words
A catheter as claimed in Claim 8 wherein said second lumen extends the entire length of the flexible elongate member.
Claim 12
Dependent Claim
111 words
In a balloon dilatation catheter apparatus, a balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal ends and having a first lumen extending therethrough, first and second longitudinally spaced apart inflatable balloons carried by the tubular member and having their interiors in communication with the first lumen in the tubular member, a second lumen carried by the tubular member extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and a guide wire extending through the second lumen and extending beyond the distal extremity of the flexible elongate tubular member.
Claim 13
Dependent Claim
111 words
In a balloon dilatation catheter apparatus, a balloon dilatation catheter comprising a flexible elongate tubular member having proximal and distal ends and having a first lumen extending therethrough, first and second longitudinally spaced apart inflatable balloons carried by the tubular member and having their interiors in communication with the first lumen in the tubular member, a second lumen carried by the tubular member extending through the first and second balloons and through the distal extremity of the tubular member, the second lumen having an opening proximal of the first balloon and a guide wire extending through the second lumen and extending beyond the distal extremity of the flexible elongate tubular member.
Claim 14
Dependent Claim
42 words
Apparatus as claimed in Claim 10 wherein said guide wire extends out of said opening and extends along said flexible elongate member exteriorally of the flexible elongate member to a region which is beyond the proximal extremity of the flexible elongate member.
Claim 15
Dependent Claim
30 words
Apparatus as claimed in Claim 11 together with a removable split sheath mounted on the proximal extremity of said elongate tubular member and enclosing the same and said guide wire.
Claim 16
Dependent Claim
36 words
Apparatus as claimed in any one of Claims 10-12 wherein said second lumen extends the entire length of the flexible elongate member and wherein said guide wire extends through the entire length of said second lumen.
References Cited (Backward Citations)
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