Patent ID: 9108058
Filing Date: 2015-08-18
Classification: A61N

Abstract:
1. A system for stimulating a left phrenic nerve and a right phrenic nerve of a patient, the system comprising: a signal generator to produce stimulation signals; a lead structure configured for insertion into a venous system of the patient, the lead structure defining a longitudinal axis along a length of the lead structure and between a proximal portion of the lead structure and a distal portion of the lead structure, and the lead structure having a plurality of leads along the longitudinal axis to receive stimulation signals from the signal generator; a plurality of second pairs of electrodes on the lead structure proximate the distal portion of the lead structure, wherein the plurality of second pairs of electrodes includes second electrodes configured to receive stimulation signals from at least one lead of the plurality of leads for stimulation of the right phrenic nerve; a plurality of first pairs of electrodes on the lead structure proximate the proximal portion of the lead structure wherein the plurality of first pairs of electrodes includes first electrodes configured to receive stimulation signals from at least one lead of the plurality of leads for stimulation of the left phrenic nerve, wherein the signal generator is proximal to the first electrodes; a blood chemistry sensor for insertion into a blood vessel proximate at least one of the first electrodes and the second electrodes, the blood chemistry sensor configured to sense a condition of blood of the patient, wherein the signal generator adjusts the stimulation signals based on the sensed condition of blood; a motion sensor configured to sense motion of the patient, wherein the signal generator adjusts the stimulation signals based on the sensed motion; and a control system programmed to (a) select the first electrodes from the plurality of first pairs of electrodes to stimulate the left phrenic nerve, and (b) select the second electrodes from the plurality of second pairs of electrodes to stimulate the right phrenic nerve.