| 摘要 |
A method for delivering a therapeutic substance in a coronary sinus ( 28 ) of a patient includes inserting a catheter ( 30 ) through a vein ( 22 ) into a right atrium ( 26 ) of the patient, and advancing the catheter from the right atrium into the coronary sinus. A resilient anchor ( 34 ), which is fixed to the catheter, is released so as to anchor the catheter in the coronary sinus without blocking blood flow through the coronary sinus. The therapeutic substance is then administered from the catheter into the coronary sinus.
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