EP0378178A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catheter for uniform distribution of therapeutic fluids
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1990-01-09
•
Granted: —
•
Expires: 2010-01-09
Abstract
Abstract A vascular catheter for delivering a uniform flow of therapeutic fluid over a length of the catheter. The catheter is particularly suitable for delivering thrombolytic agents to a thrombus or clot in a patient's arterial system. In a preferred embodiment, the catheter has a relatively thick-walled tubular body (14) with a central lumen (12) for advancement over a guidewire (13) and a plurality of fluid delivering lumens (15) disposed within the relatively thick wall. Each of the smaller lumens has a single flow passageway to discharge therapeutic fluid to the exterior of the catheter.
Inventors
- 👤 Michael D. Dake
- 👤 Mark A. Maguire
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
98 words
A multilumen vascular catheter for the uniform delivery of fluid containing drugs, therapeutic agents and the like comprising an elongated tubular body having a first lumen for receiving a guidewire to facilitate the advancement of the catheter through a patient's vasculature and a plurality of second lumens, each of said second lumens having a fluid communication therewith a single flow passageway extending through the wall of the tubular body to the exterior thereof with the flow passageways being longitudinally spaced from each other so that a uniform flow of fluid is discharged over a length of the catheter.
Claim 2
Dependent Claim
98 words
A multilumen vascular catheter for the uniform delivery of fluid containing drugs, therapeutic agents and the like comprising an elongated tubular body having a first lumen for receiving a guidewire to facilitate the advancement of the catheter through a patient's vasculature and a plurality of second lumens, each of said second lumens having a fluid communication therewith a single flow passageway extending through the wall of the tubular body to the exterior thereof with the flow passageways being longitudinally spaced from each other so that a uniform flow of fluid is discharged over a length of the catheter.
Claim 3
Dependent Claim
21 words
The vascular catheter of claim 1 wherein the first lumen is centrally disposed along the longitudinal axis of the tubular body.
Claim 4
Dependent Claim
18 words
The vascular catheter of claim 2 wherein the plurality of second lumens are disposed about the first lumen.
Claim 5
Dependent Claim
23 words
The vascular catheter of claim 1 wherein the minimum cross-sectional area of the flow passageway ranges from about 0.00005 to about 0.0002 in².
Claim 6
Dependent Claim
24 words
The vascular catheter of claim 1 including means at the proximal end of the catheter for directing fluid into the plurality of second lumens.
Claim 7
Dependent Claim
27 words
The vascular catheter of claim 4 wherein the minimum cross-sectional areas of each of the flow passageways through the wall of the catheter are essentially the same.
Claim 8
Dependent Claim
25 words
The vascular catheter of claim 1 wherein the flow passageways are spaced longitudinally from one another a distance of about 0.5 to about 5 cm.
Claim 9
Dependent Claim
14 words
The vascular catheter of claim 1 wherein at least four second lumens are provided.
Claim 10
Dependent Claim
40 words
The vascular catheter of claim 1 wherein the elongated tubular body comprises a cylindrical member with an outer wall and a central first lumen for receiving a guidewire, with the plurality of second lumens extending longitudinally through the outer wall.
Claim 11
Dependent Claim
33 words
The catheter of claim 1 wherein the flow passageways are radially spaced about the longitudinal axis of the tubular body about 90° from each other so as to be in a spiral orientation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.