Electrode devices for nerve stimulation and cardiac sensing
First Claim
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1. Apparatus comprising:
- an electrode cuff, which comprises;
a housing, which is configured to be placed around a nerve of a subject at a first location neither within nor in contact with a heart of the subject; and
one or more cuff first electrode contact surfaces, which are fixed to the housing;
at least one second electrode contact surface, which is not directly mechanically coupled to the electrode cuff, and which is configured to be positioned in a body of the subject at a second location neither within nor in contact with the heart; and
a control unit, which comprises;
a sensing unit, which is configured to sense, using (a) at least one of the cuff first electrode contact surfaces and (b) the at least one second electrode contact surface, an electrical signal between (a) the at least one of the cuff first electrode contact surfaces and (b) the at least one second electrode contact surface; and
an analysis unit, which is configured to analyze the signal to identify a parameter of a cardiac cycle of the subject.
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Abstract
Apparatus is provided for application to a nerve of a subject, the apparatus comprising an electrode device, which comprises a housing, which is configured to be placed at least partially around the nerve, so as to define an outer surface of the electrode device and an inner surface that faces the nerve. The electrode device further comprises one or more first electrode contact surfaces, fixed to the inner surface of the housing, and one or more second electrode contact surfaces, fixed to the outer surface of the housing. Other embodiments are also described.
201 Citations
21 Claims
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1. Apparatus comprising:
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an electrode cuff, which comprises; a housing, which is configured to be placed around a nerve of a subject at a first location neither within nor in contact with a heart of the subject; and one or more cuff first electrode contact surfaces, which are fixed to the housing; at least one second electrode contact surface, which is not directly mechanically coupled to the electrode cuff, and which is configured to be positioned in a body of the subject at a second location neither within nor in contact with the heart; and a control unit, which comprises; a sensing unit, which is configured to sense, using (a) at least one of the cuff first electrode contact surfaces and (b) the at least one second electrode contact surface, an electrical signal between (a) the at least one of the cuff first electrode contact surfaces and (b) the at least one second electrode contact surface; and an analysis unit, which is configured to analyze the signal to identify a parameter of a cardiac cycle of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17, 21)
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12. A method comprising:
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placing a housing of an electrode cuff around a nerve of a subject at a first location neither within nor in contact with a heart of the subject; and implanting a control unit configured to sense, between the electrode cuff and a second location within a body of the subject neither within nor in contact with the heart, a signal indicative of a parameter of a cardiac cycle of the subject, using (a) at least one cuff first electrode contact surface fixed to a housing of the electrode cuff and (b) at least one second electrode contact surface at the second location. - View Dependent Claims (13, 14, 15, 16, 18, 19, 20)
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Specification