US 2017/0281944 A1 · IMPLANTABLE PULSE GENERATOR THAT GENERATES SPINAL CORD STIMULATION SIGNALS FOR A HUMAN BODY

Abstract

An implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body has a programmable signal generator that can generate the signals based on stored signal parameters without any intervention from a processor that controls the overall operation of the IPG. While the signal generator is generating the signals the processor can be in a standby mode to substantially save battery power. The IPG also contains circuitry to indicate to a patient that proper alignment exists between the IPG and an external charger to charge a battery in the IPG.

Claims20

Dependent claims

A spinal cord stimulation system comprising:

an external charger;
and
an implantable pulse generator including a rechargeable battery configured to wirelessly couple to the external charger;
wherein the implantable pulse generator contains a voltage source, a current limiter, and an amplifier configured to charge the rechargeable battery based on power transmitted by the external charger;
and
wherein the external charger is configured to provide an indication that proper alignment exists between the rechargeable battery and the external charger based upon a drop in an output voltage of the current limiter when the amplifier receives a maximum set current limit.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/629,237Filed 21 Jun 2017

Priority

15 Mar 2013

Published

5 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

A61N 1/36071
Adapted for a particular treatment: pain
A61N 1/36062
Adapted for a particular treatment: spinal stimulation
A61N 1/3787
Electrical supply: from an external energy source
H02J 7/42
Characterised by the exchange of charge or discharge related data: with electronic devices having internal batteries, e.g. mobile phones

Family

Application61/792,654Us provisional application · filed 15 Mar 2013

Application14/213,186Continuation in part · filed 14 Mar 2014

Application14/805,600Continuation in part · filed 22 Jul 2015

Application15/299,550Continuation in part · filed 21 Oct 2016

Application15/581,178Continuation in part · filed 28 Apr 2017

Application15/629,237Continuation in part

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