IP Library › Granted Patent US 12,551,705
Granted Patent B2
US 12,551,705 · App. 18/118,671 · Granted Feb 17, 2026

Efficient use of an implantable pulse generator battery, and associated systems and methods

Inventors: Jon Parker (Portland, OR); Bret Foreman (Redwood City, CA); Jason Aaron Sutor (Redwood City, CA); Sean Knudsen (Redwood City, CA)
Assignee: Nevro Corp.
A61N1/36153A61N1/36062A61N1/36071A61N1/36139A61N1/36157A61N1/36171A61N1/378
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Quick Facts
Patent No.
US 12,551,705
App. No.
18/118,671
Granted
Feb 17, 2026
Kind
B2
Abstract

Systems and methods for the efficient use of an implantable pulse generator (IPG) battery are disclosed. A representative system for adjusting an electrical signal of an IPG associated with delivering therapy to a patient comprises a computer readable medium having instructions that cause the IPG to deliver a supply voltage at a first value, adjust the supply voltage from the first value until a threshold break occurs, and, based at least in part of the threshold break, increase the supply voltage from the second value to a third value. As therapy is delivered to the patient, the system iteratively adjusts the supply voltage to approach and reflect a variable minimum voltage needed to provide the requested current to the IPG.

Claims (43)

1 . A method for delivering electrical therapy to a patient in a closed loop manner, the method comprising:

delivering, via an implantable pulse generator, a variable electrical signal having a parameter with a first parameter value;

adjusting the parameter of the electrical signal from the first parameter value;

receiving an indication of a first threshold break, corresponding to the parameter being equal to or falling below a first threshold value of the parameter; and

in response to the received indication—

increasing the parameter by a step size to a second parameter value; and

adjusting the parameter along a determined slope until a second threshold break occurs,

wherein receiving the indication of the first threshold break includes receiving the indication of the first threshold break at a first threshold value greater than a minimum parameter value below which therapy is not delivered to the patient.

2 . The method of claim 1 wherein the step size is a first step size, and wherein the second threshold break occurs at a second threshold value different than the first threshold value, the method further comprising:

based at least in part on the first and second threshold values, increasing the parameter by a second step size different than the first step size.

3 . The method of claim 2 wherein increasing the parameter by the second step size is based at least in part on a length of time between the first and second threshold breaks, and wherein the second step size is less than the first step size.

4 . The method of claim 2 wherein the determined slope is a first determined slope, the method further comprising:

based on at least one of (a) the first and second threshold values or (b) a length of time between the first and second threshold breaks, adjusting the parameter along a second determined slope, different than the first determined slope, until a third threshold break occurs.

5 . The method of claim 1 wherein:

the parameter is a voltage,

the first parameter value is a first voltage value, and

delivering the electrical signal includes delivering the electrical signal from a voltage regulator to a current generating source.

6 . The method of claim 1 wherein the first threshold value and the second threshold value are greater than the minimum parameter value.

7 . The method of claim 1 wherein the parameter corresponds to a voltage, and wherein increasing the parameter includes increasing the voltage based at least in part on a length of time between the first threshold break and a previous threshold break.

8 . The method of claim 1 wherein the second threshold break occurs at a second threshold value greater than the first threshold value.

9 . The method of claim 1 wherein the second threshold break occurs at a second threshold value less than the first threshold value.

10 . The method of claim 1 wherein the step size is based at least in part on a difference between the first threshold value and a prior threshold value associated with a prior threshold break.

11 . The method of claim 1 wherein, when the first threshold value is less than or equal to a prior threshold value associated with a prior threshold break, increasing the parameter by a step size includes increasing the parameter to a second parameter value less than the first parameter value.

12 . The method of claim 1 wherein, when the first threshold value is greater than a prior threshold value associated with a prior threshold break, increasing the parameter by a step size includes increasing the parameter to a second parameter value greater than the first parameter value.

13 . The method of claim 1 wherein adjusting the parameter includes increasing the parameter.

14 . The method of claim 1 wherein adjusting the parameter includes decreasing the parameter.

15 . The method of claim 1 wherein adjusting the parameter includes—adjusting the parameter at a first rate, and

after an elapsed time limit but before receiving the indication of the first threshold break, adjusting the parameter at a second rate greater than the first rate.

16 . The method of claim 15 wherein the elapsed time limit is 35 milliseconds.

17 . A method for delivering electrical therapy to a patient in a closed loop manner, the method comprising:

programming an implantable pulse generator to—

deliver a variable electrical signal having a parameter with a first parameter value;

adjust the parameter of the electrical signal from the first parameter value;

receive an indication of a first threshold break, corresponding to the parameter being equal to or falling below a first threshold value of the parameter; and

in response to the received indication—

increase the parameter by a step size to a second parameter value; and

adjust the parameter along a determined slope until a second threshold break occurs,

wherein adjusting the parameter includes-adjusting the parameter at a first rate, and

after an elapsed time limit but before receiving the indication of the first threshold break, adjusting the parameter at a second rate greater than the first rate.

18 . The method of claim 17 wherein programming the implantable pulse generator to receive the indication of the first threshold break includes programming the implantable pulse generator to receive the indication of the first threshold break at a first threshold value that is greater than a minimum parameter value below which therapy is not delivered to the patient.

19 . The method of claim 17 wherein programming the implantable pulse generator to increase the parameter by a step size includes programming the implantable pulse generator to—

increase the parameter to a second parameter value less than the first parameter value when the first threshold value is less than or equal to a prior threshold value associated with a prior threshold break, and/or

increasing the parameter to a second parameter value greater than the first parameter value when the first threshold value is greater than a prior threshold value associated with a prior threshold break.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Apr 4, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
To: NEVRO CORP.
Reel/Frame 070743/0001 →
PATENT SECURITY AGREEMENT Recorded Dec 1, 2023
From: NEVRO CORP.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 065744/0302 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2023
From: PARKER, JON; FOREMAN, BRET; SUTOR, JASON AARON; KNUDSEN, SEAN
To: NEVRO CORP.
Reel/Frame 062912/0410 →
Continuity (3)
Division 16262705 · Jan 30, 2019
Provisional Application 62623961 · Jan 30, 2018
Related Publication 20230347153A1 · Nov 2, 2023
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