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Implantable neurostimulators having reduced pocket stimulation

a neurostimulator and pocket technology, applied in electrotherapy, therapy, etc., can solve the problems of undesirable unfavorable and perhaps annoying or painful stimulation of the implantation pocket, and the increase of the risk of infection,

Inactive Publication Date: 2010-06-03
BOSTON SCI NEUROMODULATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]In accordance with the present inventions, a method of providing therapy using a neurostimulator implanted within a tissue pocket of a patient is provided. The method comprises initially conveying pulsed electrical energy...

Problems solved by technology

This pocket stimulation problem is exacerbated when microstimulators are used.
In this case, stimulation of the implantation pocket is undesirable.
If this anodic surface were used with a leaded Bion® microstimulator, undesired and perhaps annoying or painful stimulation in the implantation pocket might be expected.
However, coating a portion of the neurostimulator case necessarily increases the current density of the uncoated portions, thereby potentially increasing the chance that pocket stimulation will occur adjacent these higher current density sections.

Method used

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  • Implantable neurostimulators having reduced pocket stimulation
  • Implantable neurostimulators having reduced pocket stimulation
  • Implantable neurostimulators having reduced pocket stimulation

Examples

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Embodiment Construction

[0031]Turning first to FIG. 1, an exemplary tissue stimulation system 10 generally includes a neurostimulator, and in particular, a microstimulator 12, an implantable stimulation lead 14, an external control device in the form of a remote controller RC 16, and a clinician's programmer (CP) 18. The stimulation system 10 may also include an external trial stimulator (not shown) for testing the effects of the stimulation prior to implantation of the microstimulator 12, and an external charger 20 for recharging the microstimulator 12.

[0032]It should be noted that, although the neurostimulator is described as being a microstimulator herein, the present invention may be used with used with any type of implantable electrical circuitry used to stimulate tissue where it is desirable to prevent pocket stimulation. It should also be noted that, although the microstimulator 12 is described herein as being battery-powered, the microstimulator 12 alternatively be radio-frequency (RF)-controlled. ...

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Abstract

Neurostimulators and methods of using neurostimulators are provided. The neurostimulator is implanted within a tissue pocket of a patient, and electrical energy is conveyed from the neurostimulator to stimulate a target tissue site remote from the tissue pocket. The neurostimulator has a case with which one or more electrodes are associated. The electrical energy is returned to the electrode(s) in a manner that prevents, or at least reduces, pocket stimulation that may otherwise occur due to the return of electrical energy to the case of the neurostimulator.

Description

RELATED APPLICATION[0001]The present application claims the benefit under 35 U.S.C. §119 to U.S. provisional patent application Ser. No. 61 / 119,662, filed Dec. 3, 2008. The foregoing application is hereby incorporated by reference into the present application in its entirety.FIELD OF THE INVENTION[0002]The present inventions relate to tissue stimulation systems, and more particularly, to systems and methods for preventing or reducing inadvertent stimulation of tissue adjacent an implantable neurostimulator.BACKGROUND OF THE INVENTION[0003]Implantable neurostimulation systems have proven therapeutic in a wide variety of diseases and disorders. Pacemakers and Implantable Cardiac Defibrillators (ICDs) have proven highly effective in the treatment of a number of cardiac conditions (e.g., arrhythmias). Spinal Cord Stimulation (SCS) systems have long been accepted as a therapeutic modality for the treatment of chronic pain syndromes, and the application of tissue stimulation has begun to ...

Claims

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Application Information

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IPC IPC(8): A61N1/00
CPCA61N1/08A61N1/36185A61N1/3756A61N1/37205A61N1/372A61N1/36175
Inventor MOFFITT, MICHAEL A.LEE, DONGCHULBRADLEY, KERRY
Owner BOSTON SCI NEUROMODULATION CORP
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