ACCELEROMETER-BASED CONTACT SENSING ASSEMBLY AND SYSTEM
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Accused Products
Abstract
A catheter system including an accelerometer-based sensing assembly is provided. In particular the present teachings relate to an accelerometer based assembly used to determine contact between a catheter and surrounding proximate tissue, such as cardiac tissue. An embodiment of such a system may, for example, be used for visualization, mapping, ablation, or other methods of diagnosis and treatment of tissue and/or surrounding areas.
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Citations
40 Claims
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1. -20. (canceled)
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21. A method comprising:
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providing a catheter having a proximal portion and a flexible distal portion, the proximal portion being stiff relative to the flexible distal portion; providing an electrode coupled to the flexible distal portion, and an accelerometer coupled to the electrode; and monitoring an output of the accelerometer to recognize when the electrode comes into contact with a tissue surface in a body of a patient. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method, comprising:
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providing a catheter having a proximal portion and a flexible distal portion, the proximal portion being stiff relative to the flexible distal portion; providing an electrode coupled to the flexible distal portion; providing a plurality of accelerometers coupled to the electrode; and monitoring respective outputs of the plurality of accelerometers to recognize when the electrode comes into contact with a tissue surface in a body of a patient by recognizing, using the accelerometer outputs, when the electrode motion corresponds to a motion of the tissue surface. - View Dependent Claims (38, 39, 40)
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Specification