Endovascular device for sensing and or stimulating tissue
Devices, methods and systems for transmitting signals through a device located in a blood vessel of an animal, for stimulating and/or sensing activity of media proximal to the device, wherein the media includes tissue and/or fluid.
1. A method of recording of neural information or stimulation of neurons of a patient, the method comprising:
receiving a signal representative of neural activity from a stent having an electrode positioned in a vessel of the patient, where the stent comprises a first strut having a first conductive path and a second strut having a second conductive path, where the first conductive path is embedded in the first strut, where the second conductive path is embedded in the first strut and in the second strut, where the first conductive path and the second conductive path extend between a first end and a second end of the first strut, and where the first and second conductive paths are independent data channels, the method further comprising transmitting or receiving first data via the first conductive path and transmitting or receiving second data different from the first data via the second conductive path;
generating data representing said activity using the signal;
transmitting said data to a control unit;
generating a control signal from the control unit; and
transmitting the control signal to an apparatus coupled to the patient.
2. The method of claim 1 , where the stent comprises electrodes, where the electrodes are arranged around a circumference of the stent, where the stent has a contracted configuration and an expanded configuration, where when the stent is in the contracted configuration, the first conductive path and the second conductive path are separated by a first distance, where when the stent is in the expanded configuration, the first conductive path and the second conductive path are separated by a second distance, and where the second distance is greater than the first distance.
3. The method of claim 1 , where the first strut has a first embedded electrode where the first conductive path is exposed, and where the second strut has a second embedded electrode where the second conductive path is exposed.
4. The method of claim 3 , where the first embedded electrode is located where the first strut intersects the second strut.
5. The method of claim 1 , where the stent is positioned in a vessel selected from either a vessel in a superior sagittal sinus or a branching cortical vein.
6. The method of claim 1 , where the device is positioned in a vessel located adjacent to a visual cortex of a patient.
7. The method of claim 1 , wherein the vessel is located in a muscle for direct muscular stimulation or recording.
8. The method of claim 1 , wherein the vessel adjacent to a peripheral nerve for stimulation or recording.
9. The method of claim 1 , wherein the vessel is adjacent to a sympathetic or parasympathetic nerve.
10. The method of claim 1 , where the signal travels from the first electrode through the first conductive path and through a lead coupled to the first conductive path to the control unit.
11. The method of claim 1 , where at least one of the struts has three embedded conductive paths.