Patent EP0513818A1 successfully refreshed from Google Patents.
EP0513818A1
Expired / Lapsed
EP
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Low profile diltation catheter
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1992-05-15
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Granted: —
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Expires: 2012-05-15
Abstract
Abstract An intravascular catheter (50), such as a balloon dilatation catheter, which has a distal section (58) wherein a small dimensioned distal section of an outer tubular member (53) is bonded to an inner tubular member (51) over a significant portion thereof to provide a catheter shaft having small transverse dimensions and improved flexibility with little or no loss is pushability. The catheter construction can be employed in a wide variety of catheters.
Inventors
- 👤 Motasim Mahmoud Sirhan
- 👤 Jovito L. Fernando
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:21
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/0043; A61M2025/0004; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0034; A61M2025/0039; A61M2025/0063; A61M25/01; A61M2025/0177; A61M2025/0183; A61M2025/1043; A61M2025/1063; A61M2025/1097; A61M25/0009; A61M25/0029
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
An elongated catheter for performing intravascular therapeutic or diagnostic procedures comprising: a) an inner tubular member having a first inner lumen and a distal end with a port in communication with the first inner lumen, both the inner lumen and the port being adapted to slidably receive a guidewire; and b) an outer tubular member disposed about the inner tubular member having a section in a distal portion of the catheter which has at least 5% of the inner periphery thereof bonded to the exterior of the inner tubular member, with the bonded portion taking the shape of the exterior of the inner tubular member and the section having an unbonded portion defining a second inner lumen extending longitudinally between the inner and outer tubular members.
Claim 2
Dependent Claim
34 words
The elongated catheter of claim 1 wherein not more than about 90% of the inner periphery of the section of the outer tubular member is bonded to the exterior of the inner tubular member.
Claim 3
Dependent Claim
19 words
The elongated catheter of claim 1 including therapeutic or diagnostic means at a location distal to the bonded section.
Claim 4
Dependent Claim
34 words
The elongated catheter of claim 3 wherein the therapeutic or diagnostic means is an inflatable balloon with an interior in fluid communication with the second inner lumen between the inner and outer tubular members.
Claim 5
Dependent Claim
56 words
The elongated catheter of claim 4 wherein the inflatable balloon has a distal end secured to the distal end of the inner tubular member and a proximal end secured to the distal end of the outer tubular member distal to the small dimensioned section thereof, the inner tubular member extending through the interior of the balloon.
Claim 6
Dependent Claim
220 words
A balloon dilatation catheter for performing angioplasty procedures within a patient's arterial system comprising: a) an elongated catheter body having an inner tubular member with a first inner lumen extending therethrough and a distal end with a port in fluid communication with the first inner lumen both of which are adapted to slidably receive a guidewire therein, and an outer tubular member which is disposed about the inner tubular member and which has a section in a distal part of the catheter body with at least 5% of the periphery thereof bonded to the exterior of an underlying portion of the inner member, with the bonded portion of the outer tubular member taking the shape of the inner tubular member to which it is bonded and with the unbonded portion of the section of the outer tubular member defining a second inner lumen between the inner and out tubular members; b) an inflatable dilatation balloon distal to the bonded section of the outer tubular member having an interior in fluid communication with the second inner lumen and having a distal end secured to the distal end of the inner tubular member which extends through the interior of the balloon; and c) means to direct inflation fluid from a source through the second inner lumen to the interior of the balloon.
Claim 7
Dependent Claim
41 words
The dilatation catheter of claim 1 or 6 wherein a guidewire receiving port extends through the bonded portions of the inner tubular member and the outer tubular member and is in communication with the inner lumen of the inner tubular member.
Claim 8
Dependent Claim
42 words
The dilatation catheter of claim 1 or 6 wherein at least one perfusion port extends through the bonded portions of the inner tubular member and the outer tubular member and is in communication with the inner lumen of the inner tubular member.
Claim 9
Dependent Claim
32 words
The dilatation catheter of claim 8 wherein at least one perfusion port is provided in the inner tubular member distal to the balloon which is in communication with the inner lumen thereof.
Claim 10
Dependent Claim
32 words
The dilatation catheter of claim 1 or 6 wherein a portion of the inner tubular member proximal to the portion thereof bonded to the outer tubular is provided with a stiffening element.
Claim 11
Dependent Claim
25 words
The dilatation catheter of claim 10 wherein the stiffening member is a mandrel which is disposed within the inner lumen of the inner tubular member.
Claim 12
Dependent Claim
231 words
A balloon dilatation catheter for performing angioplasty procedures within a patient's arterial system, comprising: a) an elongated catheter body having an inner tubular member with a relatively short inner lumen extending therethrough and a distal end with a port in communication with the inner lumen, both of which are adapted to slidably receive a guidewire therein, and an outer tubular member which is disposed about the inner member and with a portion thereof in the distal part of the catheter body having at least 5% of the periphery thereof bonded to the exterior of an underlying portion of the inner tubular member and taking the shape of the inner tubular member to which it is bonded and defining with an unbonded portion of the inner tubular member an inflation lumen along the bonded length; b) an inflatable dilatation balloon having a distal end secured to the distal end of the inner tubular member which extends through the interior of the balloon; c) a guidewire port which extends through the bonded portions of the inner and outer tubular members and which is in communication with the inner lumen of the inner tubular member; and d) means to direct inflation fluid from a source through the inflation lumen defined between the unbonded portion of the outer tubular member and the unbounded portion of the inner tubular member into the interior of the balloon.
Claim 13
Dependent Claim
43 words
The dilatation catheter of claim 1, 10 or 12 wherein a portion of the inner tubular member proximal to the portion thereof which is bonded to the outer tubular member is formed of hypotubing to increase the stiffness of the inner tubular member.
Claim 14
Dependent Claim
22 words
The dilatation catheter of claim 12 wherein the catheter body has a relatively stiff proximal portion and a relatively flexible distal portion.
Claim 15
Dependent Claim
226 words
A balloon dilatation catheter for performing angioplasty procedures within a patient's arterial system, comprising: a) an elongated catheter body having an inner tubular member with a relatively short inner lumen extending therein, and an outer tubular member which is disposed about the inner tubular member and which has a section in a distal portion of the catheter body with a length thereof bonded to the exterior of an underlying portion of the inner tubular member and defining with an unbonded portion of the inner tubular member an inflation lumen along said length; b) an inflatable dilatation balloon on the distal end of the outer tubular member which has a distal end secured to the distal end of the inner tubular member which extends through the interior of the balloon; c) at least one perfusion port which extends through the bonded portions of the inner and outer tubular members and which is in communication with the inner lumen of the inner tubular member and at least one perfusion port in the inner tubular member distal to the balloon which is in communication with the inner lumen of the inner tubular member; and d) means to direct inflation fluid from a source through the inflation lumen defined between the unbonded portions of the outer tubular member and the inner tubular member and into the interior of the balloon.
Claim 16
Dependent Claim
40 words
The dilatation catheter of claim 1, 6, 12, or 15 wherein at least about 30% to about 80% of the inner periphery of the section of the outer tubular member is bonded to the exterior of the inner tubular member.
References Cited (Backward Citations)
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