Multiplexed medical device lead with standard header
First Claim
1. A cardiac stimulus device lead, comprising:
- a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode; and
a controller connected to the multiplexer switch, wherein the controller is adapted to control the switch to connect the first terminal to and disconnect the second terminal from the first conductor to electrically connect the first electrode to and electrically disconnect the sensing circuit from the first conductor, and to control the switch to connect the second terminal to and disconnect the first terminal from the first conductor to electrically connect the sensing circuit to and electrically disconnect the first electrode from the first conductor.
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Accused Products
Abstract
Systems and methods for providing a cardiac stimulus device lead with additional sensing capabilities without violating header standards is disclosed. A cardiac stimulus device lead is provided according to one aspect. According to one embodiment, the lead includes a first conductor and a second conductor for transmitting an electrical pulse from a pulse generator. The lead further includes a multiplexer switch, a first electrode, a second electrode, a sensing circuit and a controller. The first conductor is connected to the multiplexer switch. A first terminal of the multiplexer switch is connected to the first electrode and a second terminal of the multiplexer switch is connected to the sensing circuit. The second conductor is connected to the second electrode. The controller is connected to the multiplexer switch, and is adapted to selectively connect the first conductor to one of the first electrode and the sensing circuit.
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Citations
64 Claims
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1. A cardiac stimulus device lead, comprising:
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a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode; and
a controller connected to the multiplexer switch, wherein the controller is adapted to control the switch to connect the first terminal to and disconnect the second terminal from the first conductor to electrically connect the first electrode to and electrically disconnect the sensing circuit from the first conductor, and to control the switch to connect the second terminal to and disconnect the first terminal from the first conductor to electrically connect the sensing circuit to and electrically disconnect the first electrode from the first conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A cardiac stimulus device, comprising:
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a pulse generator having a standard header; and
at least one lead for coupling to the standard header, wherein the lead includes;
a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode; and
a controller connected to the multiplexer switch, wherein the controller is adapted to control the switch to connect the first terminal to and disconnect the second terminal from the first conductor to electrically connect the first electrode to and electrically disconnect the sensing circuit from the first conductor, and to control the switch to connect the second terminal to and disconnect the first terminal from the first conductor to electrically connect the sensing circuit to and electrically disconnect the first electrode from the first conductor. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of forming a cardiac stimulus device lead, comprising:
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providing a first conductor;
providing a second conductor;
providing a multiplexer switch with a first and second terminal;
providing a sensing circuit;
providing a first electrode;
providing a second electrode;
coupling the first conductor to the multiplexer switch, the switch being adapted to connect the first terminal to and disconnect the second terminal from the first conductor, and to connect the second terminal to and disconnect the first terminal from the first conductor;
coupling the first terminal of the multiplexer switch to the first electrode;
coupling the second terminal of the multiplexer switch to the sensing circuit;
coupling the second conductor to the second electrode; and
providing a controller coupled to and adapted to control the multiplexer switch to switch between electrically connecting the first electrode to and electrically disconnecting the sensing circuit from the first conductor, and electrically connecting the sensing circuit to and electrically disconnecting the first electrode from the first conductor. - View Dependent Claims (46, 47, 48, 49)
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50. A cardiac stimulus device lead, comprising:
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a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode; and
a controller connected to the multiplexer switch, wherein the controller is adapted to selectively connect the first conductor to one of the first electrode and the sensing circuit, and further is adapted to selectively connect the first conductor to the first electrode during a pacing pulse on the first conductor. - View Dependent Claims (51, 52)
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53. A cardiac stimulus device lead, comprising:
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a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode;
a controller connected to the multiplexer switch, wherein the controller is adapted to selectively connect the first conductor to one of the first electrode and the sensing circuit; and
a capacitor selectively coupled between the first conductor and the second conductor for storing a charge from an electrical pulse. - View Dependent Claims (54, 55, 56, 57)
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58. A cardiac stimulus device lead, comprising:
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a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode; and
a controller connected to the multiplexer switch, wherein the controller is adapted to selectively connect the first conductor to one of the first electrode and the sensing circuit, the controller including a timer to time at least one control signal to selectively connect the first conductor to one of the first electrode and the sensing circuit, wherein the controller is adapted to sense an electrical pulse, and the timer is adapted to time the at least one control signal to selectively connect the first conductor to the sensing circuit after the electrical pulse. - View Dependent Claims (59, 60)
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61. A cardiac stimulus device lead, comprising:
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a first conductor connected to a multiplexer switch, the multiplexer switch including a first terminal connected to a first electrode and a second terminal connected to a sensing circuit;
a second conductor connected to a second electrode;
a controller connected to the multiplexer switch;
a capacitor;
a first switch adapted to selectively couple the capacitor between the first conductor and the second conductor to store a charge on the capacitor from a pacing pulse; and
a second switch adapted to selectively couple a power input of the sensing circuit to the capacitor to provide power from the charge stored thereon, wherein the controller is adapted to selectively connect the first conductor to one of the first electrode and the sensing circuit and the multiplexer switch is adapted to selectively couple the first conductor either to the first electrode or to the output of the sensing circuit, wherein the controller is coupled to the capacitor to provide power from the charge stored thereon and is coupled to the control input of the sensing circuit, and wherein the controller is adapted to control the sensing circuit and to selectively actuate the first switch, the second switch and the multiplexer switch. - View Dependent Claims (62, 63, 64)
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Specification