Systems and methods for treating shoulder pain related to subacromial impingement syndrome
Systems and methods are provided for treating chronic pain occurring secondarily to subacromial impingement syndrome in a human body. A system is provided to deliver percutaneous electrical stimulation through at least one electrode to neurological motor points of the posterior and middle deltoid muscles to mediate such pain. One-time, continued and/or periodic dosing of treatment methods according to the present invention may result in a change to central nervous system maladaptive neuroplasticity.
1. An electrical stimulation system comprising:
a lead;
at least one electrode insertable into a patient, the at least one electrode operatively coupled with the lead; and
an electrical stimulator operatively coupled with the lead, wherein the electrical stimulator delivers electrical stimulation through the at least one-electrode to at least one of an axillary nerve or a femoral nerve to produce a stimulus evoked paresthesia and a muscle contraction providing physiologic activation of afferent input to a central nervous system of the patient to treat pain by sustaining functional reorganization of maladaptive neuroplastic changes in a central nervous system of a patient.
2. The electrical stimulation system of claim 1 , wherein the first and second electrodes are at least one electrode is formed as part of the lead.
3. The electrical stimulation system of claim 2 , wherein the at least one electrode extends from a conductor attached with the lead.
4. The electrical stimulation system of claim 2 , wherein the lead includes a portion having an insulated body and the at least one electrode is formed from a portion of the lead free of the insulated body.
5. The electrical stimulation system of claim 1 , wherein the electrical stimulator is an implantable electrical stimulator.
6. The electrical system of claim 1 , wherein the at least one electrode comprises a single electrode.
7. An electrical stimulation system comprising:
a lead;
an electrode insertable into subepidermal tissue of a patient, the electrode operatively coupled with the lead; and
an electrical stimulator operatively coupled with the lead, wherein the electrical stimulator delivers electrical stimulation through the electrode to at least one of an axillary nerve or a femoral nerve to produce a stimulus evoked paresthesia and a muscle contraction in a target area providing physiologic activation of afferent input to a central nervous system of the patient to treat pain by sustaining functional reorganization of maladaptive neuroplastic changes in a central nervous system of a patient.
8. The electrical system of claim 7 , wherein a parameter of the electrical stimulation delivered through the electrode comprises a frequency of between 5 HZ and 25 HZ.
9. The electrical system of claim 7 , wherein a parameter of the electrical stimulation delivered through the electrode comprises a pulse duration of between 20 microseconds and 200 microseconds.
10. The electrical system of claim 7 , wherein a parameter of the electrical stimulation delivered through the electrode comprises an amplitude of between 0.1 mA and 20 mA.
11. The electrical stimulation system of claim 7 , wherein the electrical stimulator is external to the patient.
12. The electrical system of claim 7 , wherein the electrode comprises an extension and a barb.
13. The electrical system of claim 12 , wherein the barb is angled relative to the extension of an angle of about 20 degrees to 70 degrees.
14. An electrical stimulation system comprising:
a lead at least a portion of which is positionable into subepidermal tissue of a patient;
an electrode extending from a distal end of the lead, the electrode comprising an uninsulated portion of the lead; and
an electrical stimulator coupled with the lead, wherein the electrical stimulator delivers electrical stimulation through the electrode to at least one of an axillary nerve and a femoral nerve to produce a stimulus evoked paresthesia and a muscle contraction in a target area providing physiologic activation of muscle spindles and golgi tendon organs to treat pain by sustaining functional reorganization of maladaptive neuroplastic changes in a central nervous system of a patient.
15. The electrical stimulation system of claim 14 , wherein the electrical stimulator comprises a user mode and a clinician mode.
16. The electrical stimulation system of claim 14 , wherein the electrical stimulator is an implantable electrical stimulator.
17. The electrical stimulation system of claim 14 , wherein the lead includes a portion having an insulated body and the first electrode is formed from a portion of the lead free of the insulated body.