Systems and methods for enhanced implantation of electrode leads between tissue layers
AssigneeMainstay Medical Limited
InventorsJason Alan Shiroff, Henry Demorett, John Beck, Sidney Hauschild
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Abstract
Systems and methods for enhanced implantation of an electrode lead for neuromuscular electrical stimulation of tissue associated with control of the lumbar spine for treatment of back pain, in a midline-to-lateral manner are provided. The implanted lead may be secured within the patient and used to restore muscle function of local segmental muscles associated with the lumbar spine stabilization system without disruption of the electrode lead post-implantation due to anatomical structures.
Claims17
A method for implanting a tined lead for restoring muscle function to a lumbar spine of a patient, the method comprising:
- selecting an elongated tubular element having a longitudinal axis and a distal tip;
- selecting a lead having a longitudinal axis, a proximal region, a distal region opposite said proximal region including one or more electrodes, and at least two tines angled relative to said longitudinal axis of said lead away from said distal region and towards said proximal region, wherein the at least two tines comprise a pair of oppositely-angled fixation tines disposed in proximity to at least one of the one or more electrodes, the pair of oppositely-angled fixation tines configured to transition from a collapsed delivery state to a deployed state;
- inserting said distal tip of said elongated tubular element percutaneously towards a target vertebral site adjacent to a medial branch of the dorsal ramus of the lumbar spine of the patient;
- inserting the lead through said elongated tubular element such that the distal region of said lead is positioned adjacent to said medial branch of the dorsal ramus of the lumbar spine of the patient;
- and
- retracting the elongated tubular element while maintaining the lead in a generally stationary position relative to the target site to cause the pair of oppositely-angled fixation tines to transition from the collapsed delivery state to the deployed state to anchor said lead at an intertransversarii such that the pair of oppositely-angled fixation tines sandwich the intertransversarii in the deployed state so said one or more electrodes are positioned near the medial branch of the dorsal ramus of the lumbar spine of the patient.
Dependencies are inferred from the claim text.