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

Patent metadata

Field	Value
Publication number	US-10869999-B2
Application number	US-201816214277-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Dec 3, 2010
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

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:
an intramuscular lead;
at least one electrode insertable into a patient, the at least one electrode operatively coupled with the intramuscular lead;
an electrical stimulator operatively coupled with the intramuscular lead, wherein the electrical stimulator delivers electrical stimulation through the at least one electrode to produce a muscle contraction in a target area providing physiologic activation of muscle spindles and golgi tendon organs and afferent input to a central nervous system of the patient to treat pain.

2. The electrical stimulation system of claim 1 , wherein the at least one electrode is formed as part of the intramuscular lead.

3. The electrical stimulation system of claim 2 , wherein the at least one electrode extends from a conductor attached with the intramuscular lead.

4. The electrical stimulation system of claim 1 , wherein the lead includes a portion having an insulated body and the at least one electrode is formed from a portion of the intramuscular lead free of the insulated body.

5. The electrical stimulation system of claim 1 , wherein the electrical stimulator is external to the patient.

6. The electrical stimulation system of claim 1 , wherein the electrical stimulator is implanted in the patient.

7. The electrical stimulation system of claim 1 , wherein the intramuscular lead comprises an insulated coiled portion.

8. The electrical system of claim 1 further comprising an introducer needle configured to percutaneously insert the intramuscular lead.

9. The electrical system of claim 1 , wherein a parameter of the electrical stimulation delivered through the at least one electrode comprises a frequency of between 5 HZ and 25 HZ.

10. The electrical system of claim 1 , wherein a parameter of the electrical stimulation delivered through the at least one electrode comprises a pulse duration of between 20 microseconds and 200 microseconds.

11. The electrical system of claim 1 , wherein a parameter of the electrical stimulation delivered through the at least one electrode comprises an amplitude of between 0.1 mA and 20 mA.

12. The electrical system of claim 1 , wherein the at least one electrode comprises a single electrode.

13. An electrical stimulation system comprising:
an intramuscular lead;
an electrode insertable into subepidermal tissue of a patient, the electrode operatively coupled with the intramuscular lead;
an electrical stimulator operatively coupled with the intramuscular lead, wherein the electrical stimulator delivers electrical stimulation through the electrode to produce a muscle contraction in a target area providing physiologic activation of muscle spindles and golgi tendon organs and afferent input to a central nervous system of the patient to treat pain.

14. The electrical system of claim 13 , wherein a parameter of the electrical stimulation delivered through the electrode comprises a frequency of between 5 HZ and 25 HZ.

15. The electrical system of claim 14 , wherein a parameter of the electrical stimulation delivered through the electrode comprises a pulse duration of between 20 microseconds and 200 microseconds.

16. The electrical system of claim 15 , wherein a parameter of the electrical stimulation delivered through the electrode comprises an amplitude of between 0.1 mA and 20 mA.

17. The electrical stimulation system of claim 13 , wherein the electrical stimulator is external to the patient.

18. The electrical stimulation system of claim 13 , wherein the intramuscular lead comprises a coiled wire portion that is insulated.

19. The electrical system of claim 18 , wherein the electrode comprises an extension and a barb.

20. The electrical system of claim 19 , wherein the barb is angled relative to the extension of an angle of about 20 degrees to 70 degrees.

21. The electrical system of claim 20 further comprising a connector electrically and operatively connecting the lead with the electrical stimulator.

22. An electrical stimulation system comprising:
an intramuscular lead at least a portion of which is positionable into subepidermal tissue of a patient;
an electrode extending from a distal end of the intramuscular lead, the electrode comprising an uninsulated portion of the intramuscular lead;

an electrical stimulator operatively coupled with the intramuscular lead, wherein the electrical stimulator delivers electrical stimulation through the electrode to produce a muscle contraction in a target area providing physiologic activation of muscle spindles and golgi tendon organs to treat pain.

23. The electrical stimulation system of claim 22 , wherein the electrical stimulator comprises a user mode and a clinician mode.

24. The electrical stimulation system of claim 23 , wherein the user mode comprises a predetermined number of stimulus intensities.

25. The electrical stimulation system of claim 23 , wherein the clinician mode permits programming of parameters of the electrical stimulation, displays usage information and errors.

26. The electrical stimulation system of claim 23 , wherein the clinician mode allows for programming of minimum pulse duration, normal pulse duration and maximum pulse duration for the electrical stimulation.

Assignees

• Spr Therapeutics Inc

Inventors

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

Classifications

• A61N1/025

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

• A61N1/36071

  Pain · CPC title

• A61N1/0456

  Specially adapted for transcutaneous electrical nerve stimulation [TENS] · CPC title

• A61N1/0502 Primary

  Skin piercing electrodes · CPC title

• A61N1/0504

  Subcutaneous electrodes · CPC title