Systems and methods for treating shoulder pain related to subacromial impingement syndrome

Patent metadata

Field	Value
Publication number	US-11944809-B2
Application number	US-202017126972-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 3, 2010
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

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.

First claim

We claim:

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.

Assignees

• Spr Therapeutics Inc

Inventors

• Bennett Maria E
• Boggs Ii Joseph W
• Chae John

Classifications

• A61N1/0502 Primary

  Skin piercing electrodes · CPC title

• A61N1/025

  Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors · CPC title

• A61N1/0504

  Subcutaneous electrodes · CPC title

• A61N1/0551

  Spinal or peripheral nerve electrodes · CPC title

• A61N1/36071

  Pain · CPC title