Treating Heart Tissue
First Claim
Patent Images
1. A method of treating heart tissue, comprising:
- detecting a blockage in a coronary artery of the heart;
prior to intervening on the blockage in the coronary artery, advancing distal tip portion of a coronary sinus occlusion catheter through a guide sheath in a right atrium and into the coronary sinus, the coronary sinus occlusion catheter comprising an inflatable balloon device configured to occlude the coronary sinus when inflated;
intermittently occluding the coronary sinus using the inflatable balloon device of the coronary sinus occlusion catheter to redistribute venous blood flow into heart muscle tissue affected by the blockage; and
after intermittently occluding the coronary sinus, delivering a coronary intervention tool via a body artery and to the blockage in the coronary artery of the heart to perform a coronary intervention procedure.
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Accused Products
Abstract
Some systems and methods for treating heart tissue may include instruments for intermittently occluding the coronary sinus using a coronary sinus occlusion catheter device. In some embodiments, the coronary sinus occlusion catheter can be used before or during a coronary intervention procedure in which a blockage in a heart is repaired or removed.
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Citations
20 Claims
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1. A method of treating heart tissue, comprising:
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detecting a blockage in a coronary artery of the heart; prior to intervening on the blockage in the coronary artery, advancing distal tip portion of a coronary sinus occlusion catheter through a guide sheath in a right atrium and into the coronary sinus, the coronary sinus occlusion catheter comprising an inflatable balloon device configured to occlude the coronary sinus when inflated; intermittently occluding the coronary sinus using the inflatable balloon device of the coronary sinus occlusion catheter to redistribute venous blood flow into heart muscle tissue affected by the blockage; and after intermittently occluding the coronary sinus, delivering a coronary intervention tool via a body artery and to the blockage in the coronary artery of the heart to perform a coronary intervention procedure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The method of claim 7, further comprising intermittently occluding the coronary sinus using the inflatable balloon device of the coronary sinus occlusion catheter during repair of the blockage using the angioplasty balloon catheter or the stent delivery instrument.
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8. A method of treating heart tissue, comprising:
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delivering a distal end of a guide member though a venous system and into a right atrium; advancing a distal tip portion of a first coronary sinus occlusion catheter slidably along the guide member in the right atrium and into a coronary sinus, the first coronary sinus occlusion catheter comprising an inflatable balloon device configured to occlude the coronary sinus when inflated; intermittently occluding the coronary sinus using the inflatable balloon device of the first coronary sinus occlusion catheter to redistribute venous blood into heart muscle tissue affected by the blockage; after intermittently occluding the coronary sinus, withdrawing the first coronary sinus occlusion catheter from a proximal end of the guide member while the distal end of the guide member remains in the right atrium; monitoring bodily characteristics for a period of time after the first coronary sinus occlusion catheter is withdrawn; and delivering a distal tip portion of a second coronary sinus occlusion catheter via the guide member remaining in the right atrium and into the coronary sinus, the second coronary sinus occlusion catheter being different from first coronary sinus occlusion catheter. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A system for treating heart muscle tissue, comprising:
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a coronary sinus occlusion catheter including a distal tip portion, a proximal hub portion, a pressure sensor lumen, and a balloon fluid lumen, the distal tip portion of the coronary sinus occlusion catheter comprising an inflatable balloon device configured to occlude a coronary sinus when inflated with fluid via the balloon fluid lumen; and a control system to control the inflation and deflation of the inflatable balloon device for pressure-controlled intermittent coronary sinus occlusion, the control system comprising a display device, a pressure signal input that receives a pressure signal indicative of coronary sinus pressure, an electrocardiogram (ECG) signal input, and a control circuit that activates a pneumatic subsystem to inflate or deflate the inflatable balloon device of the coronary sinus occlusion catheter for a selected period of time based at least in part on the pressure signal indicative of the coronary sinus pressure, wherein the control system, during an initial period of operation, activates the inflatable balloon device of the coronary sinus occlusion catheter to intermittently occlude the coronary sinus in a predetermined pattern of occlusion periods and release periods that is independent of the pressure signal indicative of the coronary sinus pressure, and during a second period of operation, activates the inflatable balloon device of the coronary occlusion catheter to intermittently occlude the coronary sinus in a pattern that is dependent in part on the pressure signal indicative of the coronary sinus pressure. - View Dependent Claims (17, 18, 19, 20)
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Specification