Programming and calibration of a closed-loop vagal nerve stimulation device

Patent metadata

Field	Value
Publication number	US-2023355977-A1
Application number	US-202318132186-A
Country	US
Kind code	A1
Filing date	Apr 7, 2023
Priority date	May 5, 2022
Publication date	Nov 9, 2023
Grant date	—

Abstract

A system is described that includes: a first sensor that measures a glycemic level of a patient; a second sensor that measures at least one of a protein level of the patient, a hormone level of the patient, and an activity level of the patient; a processor that receives inputs from the first sensor and inputs from the second sensor; and memory including data that, when executed by the processor, enables the processor to perform one or more functions. An example of such function(s) include: analyzing the inputs received from the first sensor and the second sensor; determining, based on the analysis, that an electrical treatment is to be applied to the patient, where the electrical treatment includes application of at least one electrical signal to a nervous system of the patient; and causing the electrical treatment to be applied to the nervous system of the patient.

First claim

What is claimed is:

1 . A system, comprising:
a first sensor that measures a glycemic level of a patient; a second sensor that measures at least one of a protein level of the patient, a hormone level of the patient, and an activity level of the patient; a processor that receives inputs from the first sensor and inputs from the second sensor; and memory comprising data that, when executed by the processor, enables the processor to;
analyze the inputs received from the first sensor and the second sensor;
determine, based on the analysis, that an electrical treatment is to be applied to the patient, wherein the electrical treatment comprises application of at least one electrical signal to a nervous system of the patient; and
cause the electrical treatment to be applied to the nervous system of the patient.

2 . The system of claim 1 , wherein the electrical treatment comprises application of a first electrical signal to a first portion of a nerve and application of a second electrical signal to a second portion of the nerve.

3 . The system of claim 2 , wherein the first electrical signal comprises a low frequency stimulation of a celiac branch of the nerve and wherein the second electrical signal comprises a high frequency blockade of a hepatic branch of the nerve.

4 . The system of claim 2 , wherein the first electrical signal comprises a frequency of no more than about 5 kHz.

5 . The system of claim 4 , wherein the second electrical signal comprises a square wave having a frequency of between about 1 Hz and 10 Hz.

6 . The system of claim 1 , wherein the second sensor measures the protein level of the patient, the system further comprising:
a third sensor that measures the hormone level of the patient.

7 . The system of claim 6 , wherein the memory further comprises data that, when executed by the processor, enables the processor to analyze the inputs received from the first sensor, the second sensor, and the third sensor and further enables the processor to determine, based on the analysis, that the electrical treatment is to be applied to the patient.

8 . The system of claim 7 , wherein the electrical treatment is applied when the following conditions are met:
(i) the measured glycemic level exceeds a predetermined glycemic threshold OR (ii) the measured protein level exceeds a predetermined protein threshold AND the measured hormone level exceeds a predetermined hormone threshold.

9 . The system of claim 8 , wherein the electrical treatment is applied when the measured activity level of the patient is below a predetermined activity threshold.

10 . The system of claim 1 , wherein the second sensor comprises an activity sensor that measures the activity level of the patient.

11 . The system of claim 10 , wherein the activity sensor comprises at least one of a heart rate sensor, an accelerometer, a gyroscope, and a motion sensor.

12 . The system of claim 1 , wherein first sensor comprises a continuous glucose monitor.

13 . A device comprising:
a processor that receives a first input from a first sensor and a second input from a second sensor, wherein the first input describes a glycemic level of a patient, and wherein the second input describes at least one of a hormone level, a protein level, and an activity level of the patient; and memory comprising data that, when executed by the processor, enables the processor to;
analyze the first input and the second input;
determine, based on the analysis, that a treatment is to be applied to the patient, wherein the treatment comprises application of at least one electrical signal to a nervous system of the patient; and
cause the treatment to be applied to the patient.

14 . The device of claim 13 , wherein the treatment comprises application of a first electrical signal to a first portion of a nerve and application of a second electrical signal to a second portion of the nerve, wherein first electrical signal comprises a low frequency stimulation of a celiac branch of the nerve, and wherein the second electrical signal comprises a high frequency blockade of a hepatic branch of the nerve.

15 . The device of claim 13 , wherein the processor receives a third input from a third sensor, wherein the second input describes the hormone level, wherein the third input describes the protein level, and wherein the memory further comprises data that, when executed by the processor, enables the processor to analyze the third input along with the first input and the second input, then determine, based on the analysis, that the treatment is to be applied to the patient.

16 . The device of claim 15 , wherein the processor receives a fourth input from a fourth sensor, wherein the fourth input describes the activity level, and wherein the memory further comprises data that, when executed by the processor, enables the processor to analyze the fourth input along with the first input, the second input, and the third input, then determine, based on the analysis, that the treatment is to be applied to the patient.

17 . The device of claim 16 , wherein the fourth sensor comprises at least one of a heart rate sensor, an accelerometer, a gyroscope, and a motion sensor.

18 . A closed-loop system for providing therapy to a patient, the system comprising:
a plurality of sensors, wherein the plurality of sensors measure two or more of a glycemic level of the patient, a hormone level of the patient, a protein level of the patient, and an activity level of the patient; a processor; and memory comprising data that, when executed by the processor, enables the processor to;
receive inputs from the plurality of sensors;
analyze the inputs received from the plurality of sensors;
determine, based on the analysis, that a treatment is to be applied to the patient, wherein the treatment comprises application of at least one electrical signal to a nervous system of the patient; and
cause the treatment to be applied to the patient.

19 . The closed-loop system of claim 18 , further comprising:
a first electrode that delivers a first electrical signal to a first portion of a nerve; and a second electrode that delivers a second electrical signal to a second portion of the nerve.

20 . The closed-loop system of claim 18 , wherein the processor and the memory are included in an implantable pulse generator.

Assignees

• Medtronic Inc

Inventors

• Shrivastav Maneesh
• Musley Shaileshkumar V
• Koka Kanthaiah
• Goetz Steven M
• Vadrevu Suryakiran
• Gottlieb Rebecca K
• Miller David John
• Litvak Leonid M

Classifications

• A61N1/36132

  using patient feedback · CPC title

• A61N1/36053 Primary

  adapted for vagal stimulation (A61N1/36114 takes precedence) · CPC title

• A61N1/36139

  with automatic adjustment · CPC title

• A61N1/025

  Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors · CPC title

• A61N1/36171

  Frequency · CPC title