US 2009/0024187 A1 · MULIT-PROGRAMMABLE TRIAL STIMULATOR

Abstract

Disclosed are systems and methods which provide trial stimulators suited for use interoperatively and during patient trial. Trial stimulator embodiments provide a patient interface and/or clinician interface which appears and functions substantially the same as an interface of a pulse generator controller which will be used after a trial period. A compliance monitor feature may be provided to facilitate verifying the proper use of the trial stimulator during a trial period. A diagnostic feature may be provided to facilitate verifying proper operation of various aspects of a trial stimulator, such as electrode impedance analysis. Trial stimulators of embodiments provide stimulation to a plurality of tissues and/or areas of the body, such as spinal cord stimulation, deep brain stimulation, etcetera. Embodiments provide for multi-electrode stimulation and multi-stimulation programs. Embodiments are configured to provide active discharge of stimulation pulses as well as to utilize constant current sources in providing the stimulation pulses.

Claims8

Dependent claims

1-9. (canceled)

A trial stimulator system comprising:

a processor for controlling the trial stimulation system under control of executable instructions, the instructions defining:
(i) a patient user interface providing user control during a patient stimulation trial;
and
(ii) a clinician user interface providing user control during a clinician stimulation trial;
and
stimulation source circuitry comprising:
(i) circuitry for providing constant current for output for stimulation of a patient;
and
(ii) a maximum voltage override circuit, coupled to the circuitry for providing, to prevent delivery of current to the patient that would cause an output voltage to exceed a maximum voltage value, wherein the processor controls the stimulation source circuitry to provide stimulation according to a multi-stimulation set program that defines multiple pulses to be interleaved, each set of the multi-stimulation set program defining independent pulse parameters including an amplitude parameter, wherein the maximum voltage override circuit is controlled by the processor to apply an independent maximum voltage value for each set of the multi-stimulation set program;
wherein the processor is operable to control the stimulation source circuitry to selectively provide active discharge of capacitors for stimulation frequencies above a threshold frequency and to vary pulse widths of discharge pulses for stimulation frequencies above the threshold frequency.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/243,632Filed 1 Oct 2008

Priority

5 May 2004

Published

22 Jan 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61N 1/37247
Aspects of the external programmer: user interfaces, e.g. input or presentation means
A61N 1/37241
Aspects of the external programmer: providing test stimulations
A61N 1/36017
External stimulators, e.g. with patch electrodes: with leads or electrodes penetrating the skin
A61N 1/3605
For stimulation: implantable neurostimulators for stimulating central or peripheral nerve system

Mulit-programmable trial stimulator

Life of this patent

Mulit-programmable trial stimulator

Life of this patent

Abstract

Claims8