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Electrode array and deployment assembly including an electrode array that is folded into a cannula that is narrower in width than the array

a deployment assembly and electrode array technology, applied in the field of electrode arrays, can solve problems such as increasing likelihood, and achieve the effect of modulating undesired pain signals and minimizing likelihood

Active Publication Date: 2017-01-19
STRYKER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes an electrode assembly for treating pain. The assembly has a curved shape that matches the shape of the tissue it is placed on, reducing the chance of it moving. This arrangement of electrodes allows for directed current flow through the tissue, increasing the likelihood of activating specific nerves and reducing pain signals.

Problems solved by technology

This increases the likelihood that current will flow through and therefore activate specific nerves in the dorsal column that will appreciably modulate undesired pain signals.

Method used

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  • Electrode array and deployment assembly including an electrode array that is folded into a cannula that is narrower in width than the array
  • Electrode array and deployment assembly including an electrode array that is folded into a cannula that is narrower in width than the array
  • Electrode array and deployment assembly including an electrode array that is folded into a cannula that is narrower in width than the array

Examples

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Embodiment Construction

I. Electrode Array Assembly

[0068]FIG. 1 is a perspective view of an electrode array assembly 28 of this invention disposed over a dura 31 that surrounds a spinal cord 30. As best seen in FIGS. 2-4, electrode array assembly 28 includes a frame 32, seen in FIGS. 3 and 4. Frame 32 is formed from a thin section of superelastic material that can be both formed and folded into non-linear shapes. Frame 32 supports a non-conductive substrate 34. Substrate 34 generally covers the whole of the surface of the frame 32. A number of spaced apart electrodes 36 are disposed on the substrate 34.

[0069]In the illustrated version of the invention, each electrode 36 is the shape of a rectangle with rounded corners.

[0070]In FIG. 2A, for ease of illustration only four electrodes, the electrodes in the first column of electrodes (the column on the left side of the drawing) are illustrated. Also, the positions of the electrodes in the fifth column of electrodes (the column on the right side of the drawing)...

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Abstract

An electrode array assembly with a frame that is foldable or bendable on which electrodes are disposed. The frame includes laterally spaced apart bridges. Tabs extend laterally outwardly from the bridges Electrodes are disposed on the tabs. Beams, also part of the frame, extend between the laterally adjacent bridges. The frame can be folded around the beams so as to cause the laterally spaced bridges to at least partially overlap. When the beams are so bent, the electrode array can be disposed in an access cannula that has a diameter less than the width of the unfolded array.

Description

RELATIONSHIPS TO EARLIER FIELD APPLICATIONS[0001]This application is a divisional of U.S. patent application Ser. No. 12 / 873,397 filed 1 Sep. 2010 now U.S. Pat. No. 8,560,083. Application Ser. No. 12 / 873,397 is a continuation of PCT Pat. App. No. PCT / US2009 / 033769 filed 11 Feb. 2009. PCT Pat. App. No. PCT / US2009 / 0033769 is a nonprovisional application that claims priority from U.S. Pat. App. No. 61 / 034,367 filed 6 Mar. 2008 and No. 61 / 139,395 filed 19 Dec. 2008. The contents of the application from which this application claims priority are now explicitly incorporated herein by reference.FIELD OF THE INVENTION[0002]This invention relates generally to an electrode array, with multiple electrodes, that can be minimally invasively implanted adjacent target tissue within a patient and a tool for implanting the electrode array.BACKGROUND OF THE INVENTION[0003]There are a number of medical conditions for which it has been found that an effective therapy involves driving current through a ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61N1/05
CPCA61N1/05A61N1/3787A61N1/0551A61N1/0553A61N1/36185A61N1/37229A61B2562/046A61B2562/125A61B2560/066
Inventor STAUNTON, DOUGLAS A.BRINDLEY, ROBERT A.JANIK, JOHN J.BOZUNG, TIMOTHY J.
Owner STRYKER CORP
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