EP0416662A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A rapidly exchangeable vascular catheter for maintaining patency of a blood vessel
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1990-09-07
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Granted: —
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Expires: 2010-09-07
Abstract
Abstract A vascular catheter having an expandable cage mounted on the distal end of a tubular member which is radially expanded and contracted by means of a control wire which is secured to the distal end of the expandable cage. The control wire extends through a first inner lumen within the tubular member which extends along essentially the entire length thereof. A second inner lumen is provided in the distal portion of the tubular member which has a proximal port at least 15 but not more than 60 cm from the distal end of the catheter and a distal port which opens into the interior of the expandable cage. A guidewire or a low-profile steerable catheter is slidably disposed within the second lumen and a tubular member such as a slightly expanded coil through the expandable cage interior to facilitate the rapid exchange of the catheter. The catheter assembly is particularly adapted to hold open a blood vessel after a vascular procedure therein such as an angioplasty.
Inventors
- 👤 Timothy R. Machold
- 👤 Michi E. Garrison
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 08:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/966; A61M; A61M25/00; A61M25/01; A61M25/02; A61M25/04; A61M29/00; A61M29/02; A61F2250/00; A61F2250/0058; A61F2250/0059; A61F2250/0096; A61F2250/0098; A61M25/0043; A61M2025/0063; A61M2025/0183; A61M25/10; A61M2025/1043; A61M2025/107
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
182 words
A vascular catheter for maintaining the patency of a blood vessel over an extended period, comprising: a) an elongated catheter body having a first lumen which extends longitudinally therein over essentially the entire length thereof and a second, much shorter, lumen which is adapted to receive a guiding member therein and which extends longitudinally in the distal portion of the catheter body between a proximal side opening therein and an opening in the distal end thereof; b) an expandable cage formed of a plurality of strands which has a distal end with an opening therein adapted to allow a guiding member to pass there through and a proximal end which is secured to the distal end of the catheter body; and c) a control wire disposed within the first lumen with the distal end thereof secured to the distal end of the expandable cage and having means on the proximal end thereof to move the control wire longitudinally so as to adjust the axial distance between the proximal and distal ends of the expandable cage and thereby change the radial dimensions thereof.
Claim 2
Dependent Claim
182 words
A vascular catheter for maintaining the patency of a blood vessel over an extended period, comprising: a) an elongated catheter body having a first lumen which extends longitudinally therein over essentially the entire length thereof and a second, much shorter, lumen which is adapted to receive a guiding member therein and which extends longitudinally in the distal portion of the catheter body between a proximal side opening therein and an opening in the distal end thereof; b) an expandable cage formed of a plurality of strands which has a distal end with an opening therein adapted to allow a guiding member to pass there through and a proximal end which is secured to the distal end of the catheter body; and c) a control wire disposed within the first lumen with the distal end thereof secured to the distal end of the expandable cage and having means on the proximal end thereof to move the control wire longitudinally so as to adjust the axial distance between the proximal and distal ends of the expandable cage and thereby change the radial dimensions thereof.
Claim 3
Dependent Claim
30 words
The vascular catheter of claim 1 wherein the second lumen is defined at least in part by a sidewall section of the elongated catheter body having the side opening therein.
Claim 4
Dependent Claim
28 words
The vascular catheter of claim 2 wherein the sidewall section has a longitudinally extending slit therein which facilitates the rapid removal of the catheter from the guiding member.
Claim 5
Dependent Claim
28 words
The vascular catheter of claim 3 wherein the slit extends distally from the proximal side opening to a location proximally adjacent the distal end of the tubular member.
Claim 6
Dependent Claim
38 words
The vascular catheter of any one of the preceding claims wherein the proximal opening of the second inner lumen is at least about 15 cm but not more than 60 cm from the distal end of the catheter.
Claim 7
Dependent Claim
30 words
The vascular catheter of claim 5 wherein the proximal opening of the second inner lumen is about 20 cm to about 50 cm from the distal end of the catheter.
Claim 8
Dependent Claim
46 words
The vascular catheter of any one of the preceding claims wherein a third inner lumen is provided in the elongated catheter body which extends from the proximal end of the catheter body to a location proximal to the proximal side opening of the second inner lumen.
Claim 9
Dependent Claim
16 words
The vascular catheter of claim 7 wherein the third lumen has a stiffening element disposed therein.
Claim 10
Dependent Claim
23 words
The vascular catheter of any one of the preceding claims wherein the expandable cage is formed from about 4 to about 20 wires.
Claim 11
Dependent Claim
15 words
The vascular catheter of claim 9 wherein the wires are disposed in a spiral-like arrangement.
Claim 12
Dependent Claim
22 words
The vascular catheter of claim 9 wherein a substantial number of the wires forming the expandable cage are made of radiopaque material.
Claim 13
Dependent Claim
26 words
The vascular catheter of any one of the preceding claims wherein means are provided to guide the guiding member between the ends of the expandable cage.
Claim 14
Dependent Claim
14 words
The vascular catheter of claim 12 wherein the means is a partially expanded spring.
Claim 15
Dependent Claim
14 words
The vascular catheter of claim 12 wherein the radiopaque material is a platinum-nickel alloy.
References Cited (Backward Citations)
No citation records indexed.
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