Patent ID: 8626316

Claim:
A device for intermittent occlusion of a coronary sinus, comprising: a catheter comprising a plurality of lumens, an occlusion device fixed to the catheter, the occlusion device comprising an inflatable balloon configured to at least partially occlude a coronary sinus of a heart and being in fluid communication with at least one of said lumens of the catheter, and at least one pressure measuring device for measuring fluid pressure in the coronary sinus, wherein said plurality of lumens of the catheter comprises: a balloon inflation lumen in fluid communication with the inflatable balloon to inflate and deflate the inflatable balloon; a balloon pressure-monitoring lumen to measure fluid pressure in the balloon, the balloon pressure-monitoring lumen being different from and laterally offset from the balloon inflation lumen; a coronary sinus pressure sensor lumen in fluid communication with said pressure measuring device and extending distally of the balloon for communication with fluid in a coronary sinus, the coronary sinus pressure sensor lumen being different from and laterally offset from the balloon inflation lumen and the balloon pressure-monitoring lumen; and a fourth lumen being different from and laterally offset from the balloon inflation lumen, the balloon pressure-monitoring lumen, and the coronary sinus pressure sensor lumen, wherein the catheter comprises at least one structure extending distally of a distal end of the inflatable balloon and being reversibly placeable in abutment on an inner wall of the coronary sinus.