Cardiac system and method for treatment of cardiac arrhythmias and transmyocardial revascularization
First Claim
1. A gripper device for cardiac ablation comprising:
- at least one moveable arm having an inner and outer surface; and
, one or more ablators disposed on said inner surface of said moveable arm.
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Abstract
A medical device, and related method, use epicardial ablators and detectors for intraoperative epicardial approaches to ablation therapy of cardiac conduction pathways. An epicardial gripper is sized to grasp the cardiac circumference or smaller structures on the epicardial surface of the heart. Ablators are disposed on the arms of the gripper for epicardial ablation of cardiac conduction tissue. In another embodiment of the invention, an electrode system includes a flexible, adjustable probe forming a loop for epicardial ablation. Ablators are provided on one or multiple surfaces of the probe for epicardial ablation of cardiac conduction tissue. In yet another embodiment of the invention, an endocardial ablator detection system provides an indicator adjacent an ablator on an endocardial catheter, and a detector on an epicardial probe. The epicardial probe detects signals transmitted by the indicator on the endocardial catheter to localize the position of the endocardial ablator relative to the epicardial surface. The surgeon uses this information for guidance in adjusting the position of the endocardial ablator according to therapeutic objectives of cardiac ablation.
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Citations
68 Claims
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1. A gripper device for cardiac ablation comprising:
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at least one moveable arm having an inner and outer surface; and
,one or more ablators disposed on said inner surface of said moveable arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for epicardial ablation comprising the steps of:
gripping said epicardial surface with a gripper device comprising a plurality of arms, each arm having an inner and an outer surface, wherein at least one of said arms is moveable; and
, an ablator wherein said ablator is disposed on said inner surface of at least one of said moveable arms; and
applying said ablator to said epicardium such that cardiac conductive tissue is ablated. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An electrode system for epicardial ablation comprising:
a probe comprising, an adjustable, flexible substrate, forming a substantially closed loop, the probe having a cross section and at least one contact surface; and
at least one ablator located on the at least one contact surface of the probe, wherein the loop is sized to substantially encompass a structure of the heart. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. An electrode system comprising:
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a glove; and
,a probe comprising an adjustable, flexible substrate, the probe having a cross section and at least one contact surface;
at least one ablator located on the at least one contact surface of the probe, wherein said probe is in communication with said glove. - View Dependent Claims (50)
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51. A method for epicardial ablation comprising the steps of:
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applying to the epicardium an adjustable, flexible substrate forming a substantially closed probe, and having an inner surface; and
, at least one ablator located on the inner surface of the probe, wherein the probe is sized to substantially encompass a structure of the heart; and
ablating tissue within said structure of the heart.
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52. A method for epicardial ablation comprising the steps of:
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providing a glove comprising at least one ablator located on said glove;
gripping the heart with said glove; and
ablating cardiac tissue with the ablator located on said glove.
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53. An electrode system for epicardial ablation comprising:
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a probe comprising an adjustable, flexible substrate forming a substantially closed loop, the probe having a cross section and at least one contact surface; and
,a plurality of ablators located on the at least one contact surface of the probe, wherein each of the plurality of ablators is removably attached to the substrate; and
, wherein the loop is sized substantially to encompass a structure of the heart.
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54. A system for detecting the relative epicardial location of an endocardial ablator comprising:
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an ablator position indicator located on an endocardial device; and
,a detector located on an epicardial probe, wherein said ablator position indicator indicates the endocardial location of the ablator and the position detector detects the position of the ablator position indicator in response thereto, thereby localizing the endocardial ablator. - View Dependent Claims (56, 57, 58, 66, 67, 68)
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55. A system for detecting the relative epicardial location of an endocardial ablator comprising:
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an ablator position indicator located on an endocardial device; and
,a position detector located on an epicardial probe, wherein the ablator position indicator transmits a signal and the position detector receives the signal transmitted by the ablator position indicator indicating the location of the endocardial ablator. - View Dependent Claims (59, 60, 61, 62, 63, 64)
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65. A method for detecting the position of an endocardial ablation device and for transmyocardial ablation comprising the steps of:
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indicating the position of an endocardial ablator with an indicator located on an endocardial device;
detecting the position of the indicator with a detector located on an epicardial probe, wherein the detector detects the position of the indicator thereby localizing the endocardial ablator; and
,applying transmyocardial ablation.
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Specification