Electrophysiological interface system for use with multiple electrode catheters

• US 6,049,732 A
• Filed: 11/17/1997
• Issued: 04/11/2000
• Est. Priority Date: 11/17/1997
• Status: Expired due to Term

• Current Assignee: EP Technology (Boston Scientific Corporation)
• Original Assignee: EP Technology (Boston Scientific Corporation)
• Inventors: Arnett, David W., Reining, William, McGee, David, Panescu, Dorin, Swanson, David K., Whayne, James G., Nguyen, Tuan, Burnside, Robert R., Dueiri, David F., Dupree, Daniel A.
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Application Number:
  US08/971,909
• Time in Patent Office: 876 Days
• Field of Search: 600/523, 600/373-375, 600/381, 600/427, 600/436, 600/476, 600/479, 607/122, 606/41
• US Class Current: 600/523
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/304 Switching circuits
• CPC Class Codes: A61B 5/308 for electrocardiography [ECG]
• CPC Class Codes: A61B 5/6858 with a distal basket, e.g. expandable basket
• CPC Class Codes: A61B 5/7435 Displaying user selection data, e.g. icons in a graphical user interface

Abstract

A system is used in association with a structure which, in use, is deployed in an interior body region. The structure includes an operative element. A switch matrix is coupled to the operative element. The switch matrix includes a plurality of inputs and a plurality of outputs. A controller is coupled to the switch matrix to control the switch matrix to couple the operative element to selected ones of the inputs and selected ones of the outputs in accordance with applied commands. An interface is coupled to the controller. The interface includes an input element to receive operator input and a processor to generate applied commands to the controller in response to operator input. The interface also includes an image controller to generate an image of the structure while coupled to the switch matrix. The image controller generates markers on the image in response to signals transmitted from the operative element through the switch matrix.

Claims

1. A system comprising

a structure which, in use, is deployed in an interior body region, the structure including an operative element,

a switch matrix coupled to the operative element including a plurality of inputs and a plurality of outputs,

a controller coupled to the switch matrix to control the switch matrix to couple the operative element to selected ones of the inputs and selected ones of the outputs in accordance with applied commands, and

an interface coupled to the controller including an input element to receive operator input, a processor to generate applied commands to the controller in response to operator input, and an image controller to generate an image of the structure while coupled to the switch matrix.

2. A system according to claim 1 wherein the image controller generates markers on the image in response to signals transmitted from the operative element through the switch matrix.

3. A system according to claim 1

wherein the operative element includes an electrode.

4. A system according to claim 3

wherein the controller controls the switch matrix to condition the electrode to sense electrical events in tissue in the interior body region.

5. A system according to claim 3

wherein the controller controls the switch matrix to condition the electrode to transmit electrical energy.

6. A system according to claim 3

wherein the control circuit controls the switch matrix to condition the electrode to transmit electrical energy.

7. A system comprising

a structure which, in use, is deployed in an interior body region, the structure including an operative element,

an ASIC coupled to the operative element comprising a plurality of inputs, a plurality of outputs, a cross point switch matrix including switching elements realized in a 40-100 volt BiCMOS process coupled to the inputs and to the outputs, and a control circuit coupled to the cross point switch matrix for controlling the cross point switch matrix to couple selected ones of the inputs with selected ones of the outputs in accordance with applied commands, and

an interface coupled to the control circuit including an input element to receive operator input, a processor to generate applied commands to the control circuit in response to operator input, and an image controller to generate an image of the structure while coupled to the ASIC.

8. A system according to claim 7

wherein the image controller generates markers on the image in response to signals transmitted from the operative element through the ASIC.

9. A system according to claim 7

wherein the operative element includes an electrode.

10. A system according to claim 9

wherein the control circuit controls the switch matrix to condition the electrode to sense electrical events in tissue in the interior body region.

11. A system comprising

a structure which, in use, is deployed in an interior body region, the structure including a plurality of electrodes for sensing biological signals,

an ASIC including a plurality of inputs operable to receive biological signals sensed by the electrodes, a plurality of outputs couplable to input channels of a biological recorder, a cross point switch matrix coupled to the inputs and to the outputs, and a control circuit coupled to the cross point switch matrix for controlling the cross point switch matrix to couple selected ones of the inputs with selected ones of the outputs in accordance with applied commands and thereby direct the biological signals sensed by selected ones of the electrodes with selected ones of the biological recorder input channels, and

an interface coupled to the control circuit including an input element to receive operator input, a processor to generate applied commands to the control circuit in response to operator input, and an image controller to generate an image of the structure while coupled to the ASIC.

12. A system according to claim 11

wherein the image controller generates markers on the image in response to biological signals sensed by the electrodes.

13. A system according to claim 11 and further comprising test circuitry for detecting the existence of abnormal operating conditions.

14. A system according to claim 13 wherein the test circuitry is operable to detect open electrode conditions.

15. A system according to claim 13 wherein the test circuitry is operable to detect shorted electrode conditions.

16. A system according to claim 13 wherein the test circuitry is operable to detect shorted and open electrode conditions.

17. A system according to claim 13 wherein the test circuitry operates under the control of the control circuit.