Simultaneous cardiac pacing and local drug delivery method
First Claim
Patent Images
1. A method of delivering a drug to internal body tissue of a patient using a catheter that is configured to deliver drugs, said catheter being connected to a plurality of electrodes, said method comprising the steps of:
- (a) inserting said catheter into a body lumen so that at least a first electrode is proximate said internal body tissue;
(b) positioning other of said plurality of electrodes with respect to the first whereby cardiac pacing and drug delivery into said internal body tissue may be performed;
(c) providing a drug adjacent said first electrode;
(d) supplying a pacing pulse between at least two of said electrodes initiating at least one cardiac cycle;
(e) supplying drug delivery current/voltage between at least two of said electrodes including said first electrode to deliver said drug to said internal body tissue; and
(f) synchronizing the current/voltage to the pacing pulse to deliver drug in a predetermined manner within the remaining portion of the cardiac cycle to reduce the risk of inducing arrhythmia.
7 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for delivering a drug selectively and locally to internal body tissue with a catheter using electric current/voltage controlled in conjunction with active pacing of cardiac activity.
-
Citations
11 Claims
-
1. A method of delivering a drug to internal body tissue of a patient using a catheter that is configured to deliver drugs, said catheter being connected to a plurality of electrodes, said method comprising the steps of:
-
(a) inserting said catheter into a body lumen so that at least a first electrode is proximate said internal body tissue; (b) positioning other of said plurality of electrodes with respect to the first whereby cardiac pacing and drug delivery into said internal body tissue may be performed; (c) providing a drug adjacent said first electrode; (d) supplying a pacing pulse between at least two of said electrodes initiating at least one cardiac cycle; (e) supplying drug delivery current/voltage between at least two of said electrodes including said first electrode to deliver said drug to said internal body tissue; and (f) synchronizing the current/voltage to the pacing pulse to deliver drug in a predetermined manner within the remaining portion of the cardiac cycle to reduce the risk of inducing arrhythmia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification