Floatable catheters for neuromodulation

Abstract

Embodiments of the present disclosure provide for catheters for use in electrical neuromodulation. The catheter of the present disclosure includes an elongate body having a first end and a second end. The elongate body includes a longitudinal center axis that extends between the first end and the second end. The elongate body further includes three or more surfaces that define a convex polygonal cross-sectional shape taken perpendicularly to the longitudinal center axis. The catheter further includes one or more electrodes on one surface of the three or more surfaces of the elongate body, where conductive elements extend through the elongate body. The conductive elements can conduct electrical current to combinations of the one or more electrodes.

1 . (canceled) 
     
     
         2 . A catheter for use in electrical neuromodulation, the catheter comprising:
 an elongate body having a proximal portion and a distal portion, the distal portion comprising:
 a balloon expandable to be carried by a flow of blood to a pulmonary artery; and 
 an electrode array configured to extend from the elongate body, the electrode array comprising a plurality of electrodes in a column and row configuration and electrically isolated from each other, the electrode array configured to apply bipolar neuromodulation energy to the right pulmonary artery to increase cardiac contractility to treat acute heart failure, 
   wherein the elongate body comprises:
 an inflation lumen extending from the proximal portion to the balloon; and 
 a conductor lumen containing a plurality of conductors extending from the proximal portion to the electrode array, each one of the conductors of the plurality of conductors coupled to one electrode of the plurality of electrodes, 
   the proximal portion comprising a connector port coupled to the plurality of conductors, the connector port configured to be coupled to a stimulation system.   
     
     
         3 . The catheter of  claim 2 , further comprising a pressure sensor. 
     
     
         4 . The catheter of  claim 3 , wherein the elongate body comprises the pressure sensor. 
     
     
         5 . The catheter of  claim 2 , wherein the elongate body comprises a marker configured to make the elongate body visible under an imaging modality. 
     
     
         6 . The catheter of  claim 2 , wherein the elongate body comprises a pressure sensor, and wherein the elongate body comprises a marker configured to make the elongate body visible under an imaging modality. 
     
     
         7 . A catheter for use in electrical neuromodulation, the catheter comprising:
 an elongate body having a proximal portion and a distal portion, the distal portion comprising:
 a balloon expandable to be carried by a flow of blood to a pulmonary artery; and 
 an electrode array comprising a plurality of electrodes electrically isolated from each other, the electrode array configured to apply neuromodulation energy to the pulmonary artery to increase cardiac contractility, 
   wherein the elongate body comprises:
 an inflation lumen extending from the proximal portion to the balloon; and 
 a conductor lumen containing a plurality of conductors extending from the proximal portion to the electrode array, each one of the conductors of the plurality of conductors coupled to one electrode of the plurality of electrodes. 
   
     
     
         8 . The catheter of  claim 7 , wherein the proximal portion comprises a connector port coupled to the plurality of conductors, the connector port configured to be coupled to a stimulation system. 
     
     
         9 . The catheter of  claim 7 , wherein the balloon is configured to be carried by the flow of blood to the right pulmonary artery. 
     
     
         10 . The catheter of  claim 7 , wherein the elongate body comprises a pressure sensor. 
     
     
         11 . The catheter of  claim 7 , wherein the electrode array comprises a column and row configuration, wherein the electrode array is configured to extend from the elongate body, and wherein the elongate body comprises a pressure sensor. 
     
     
         12 . A catheter for use in electrical neuromodulation, the catheter comprising:
 an elongate body having a proximal portion and a distal portion, the distal portion comprising:
 a balloon expandable to be carried by a flow of blood to a pulmonary artery; and 
 an electrode array comprising a plurality of electrodes electrically isolated from each other, the electrode array configured to apply energy to the pulmonary artery, 
   wherein the elongate body comprises:
 an inflation lumen extending from the proximal portion to the balloon; and 
 a conductor lumen containing a plurality of conductors extending from the proximal portion to the electrode array, each one of the conductors of the plurality of conductors coupled to one electrode of the plurality of electrodes. 
   
     
     
         13 . The catheter of  claim 12 , wherein the proximal portion comprises a connector port coupled to the plurality of conductors, the connector port configured to be coupled to a stimulation system. 
     
     
         14 . The catheter of  claim 12 , wherein the balloon is configured to be carried by the flow of blood to the right pulmonary artery. 
     
     
         15 . The catheter of  claim 12 , wherein the electrode array comprises a column and row configuration. 
     
     
         16 . The catheter of  claim 12 , wherein the electrode array is configured to extend from the elongate body. 
     
     
         17 . The catheter of  claim 12 , wherein the electrode array is configured to be used in at least one of a unipolar, a bipolar, or a multipolar configuration. 
     
     
         18 . The catheter of  claim 12 , wherein the electrode array is on an outer surface of the elongate body. 
     
     
         19 . The catheter of  claim 12 , wherein the elongate body comprises a pressure sensor. 
     
     
         20 . The catheter of  claim 12 , wherein the elongate body comprises a predefined curve between the proximal portion and the distal portion. 
     
     
         21 . The catheter of  claim 12 , wherein the electrode array comprises a column and row configuration, wherein the electrode array is configured to extend from the elongate body, and wherein the elongate body comprises a pressure sensor.