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Apparatus and methods for anchoring electrode leads adjacent to nervous tissue

A nerve tissue, electrode technology, applied in spinal nerve electrodes, electrodes, electrotherapy and other directions

Active Publication Date: 2015-03-25
MAINSTAY MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These previously known anchoring systems are not suitable for neuromuscular stimulation as these systems have a high risk of lead displacement when implanted in or near the muscle

Method used

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  • Apparatus and methods for anchoring electrode leads adjacent to nervous tissue
  • Apparatus and methods for anchoring electrode leads adjacent to nervous tissue
  • Apparatus and methods for anchoring electrode leads adjacent to nervous tissue

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Embodiment Construction

[0038] The present invention relates to methods and apparatus for anchoring electrode leads suitable for use with implantable neuromuscular electrical stimulation ("NMES") devices, such as U.S. Patent Application Publication Nos. 2008 / 0228241 to Sachs and U.S. Pat. as described in Patent Application Publication No. 2011 / 0224665. The devices described in those applications provide electrical impulses to the nerves innervating spinous muscles, such as the multifidus, and stimulate the nerves that control those muscles to effect treatments designed to restore nerve control and repair the muscles. An implantable stimulator placed under the skin and connected to one or more lead wires with electrodes that contact the target muscle, or the nerves that innervate the target muscle, or other muscle-related anatomical structures such as ligaments and tendons . The NMES stimulation provided by the stimulator provides a completely different impulse state than that used in previously know...

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Abstract

Apparatus for neuromuscular electrical stimulation and methods for anchoring the same are provided. The apparatus may include an elongated member having one or more electrodes disposed at the distal region of the elongated member and at least one fixation element disposed at the distal region of the elongated member. The fixation element may be shaped and sized to be deployed between tissue layers, such as muscle layers, without damaging the tissue layers so as to secure the one or more electrodes in or adjacent to a desired anatomical site within a patient. An additional fixation element may be disposed at the distal region of the elongated member so that tissue, such as a muscle, may be sandwiched between the fixation elements without damaging the tissue.

Description

field of invention [0001] The present application generally relates to devices and methods for anchoring medical devices in the body, such as electrical stimulation leads, catheters, or other generally elongated or tubular devices. Background of the invention [0002] Many medical devices contain elongated or tubular elements that need to be placed in specific anatomical locations. Such devices include pacemakers, spinal cord stimulators, peripheral nerve stimulators, and drug delivery catheters. [0003] In the example of a pacemaker, for example, a lead may be threaded through a vein and then anchored to prevent migration using a fixation element at the distal end of the lead. Such fixation elements may be prongs, fins, or screws fixed in the trabecular or muscular tissue of the ventricles. [0004] Often, it is desirable to implant and anchor medical devices using minimally invasive methods, and for many devices, a percutaneous approach through a small incision is prefe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/05
CPCA61N1/0558A61N1/36057A61N1/36071
Inventor J·A·史诺夫H·T·德莫雷特P·B·拉瓦特J·P·希梅尔斯P·A·克罗斯比
Owner MAINSTAY MEDICAL
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