IP Library › Granted Patent US 12,623,078
Granted Patent B2
US 12,623,078 · App. 18/462,278 · Granted May 12, 2026

System and method for treating obstructive sleep apnea

Inventors: Francis A. Papay (Westlake, OH); Anthony V. Caparso (North Ridgeville, OH)
Assignees: The Cleveland Clinic Foundation; XII Medical, Inc.
A61N1/3611A61B5/0826A61B5/389A61N1/36128A61N1/378A61B5/4836A61F2002/2807
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Quick Facts
Patent No.
US 12,623,078
App. No.
18/462,278
Filed
Sep 6, 2023
Granted
May 12, 2026
Kind
B2
Art Unit
3796
USPC
607/42
Abstract

One aspect of the present disclosure relates to a system for treating obstructive sleep apnea in a subject. The system can include a power source and a neuromuscular stimulator in electrical communications with the power source. The neuromuscular stimulator can include a controller and at least one electrode. The controller can be configured to receive certain power and stimulation parameters associated with a therapy signal from the power source. The at least one electrode can be configured to deliver the therapy signal to a target tissue associated with control of a posterior base of the tongue of the subject.

Claims (32)

1 . A method for treating disordered breathing that occurs during sleep in a subject comprising:

positioning a neurostimulator in a head of the subject, the neurostimulator comprising a stimulating electrode and an electromyogram (EMG) sensor, wherein the neurostimulator is positioned such that the stimulating electrode and the EMG sensor are both in electrical communication with a muscle that controls a tongue of the subject and/or both in electrical communication with a nerve that controls the muscle of the tongue;

for a given respiratory cycle that includes an inspiration phase and an expiration phase, the expiration phase occurring subsequent to the inspiration phase and the inspiration phase following an expiration phase of a respiratory cycle preceding the given respiratory cycle:

after the expiration phase of the respiratory cycle immediately preceding the given respiratory cycle but prior to the onset of the inspiration phase of the given respiratory cycle, sensing EMG activity of the muscle of the tongue with the implanted EMG sensor and detecting an EMG signal indicative of an upcoming onset of the inspiration phase of the given respiratory cycle; and

activating the neurostimulator to provide an electrical signal to the muscle of the tongue or nerve at the onset of or during the inspiration phase of the given respiratory cycle in response to the EMG signal to decrease the subject's airway resistance and treat the disordered breathing.

2 . The method of claim 1 , wherein the electrical stimulation ends at an onset of the expiration phase of the given respiratory cycle.

3 . The method of claim 1 , wherein the EMG signal indicative of the onset of the inspiration phase is sensed prior to the onset of the inspiration phase of the given respiratory cycle but after an expiration phase of a respiratory cycle preceding the given respiratory cycle.

4 . The method of claim 1 , further comprising monitoring the sensed EMG activity for another EMG signal indicative of an onset of the expiration phase of the given respiratory cycle.

5 . The method of claim 1 , wherein the electrical stimulation ends at an end of the inspiration phase of the given respiratory cycle.

6 . The method of claim 1 , wherein the stimulating electrode and the EMG sensor are both in electrical communication with a genioglossus muscle of the tongue of the subject or both in electrical communication with a nerve that controls the genioglossus muscle.

7 . The method of claim 1 , wherein the stimulating electrode is carried by a first lead and the neurostimulator further comprises a second lead.

8 . The method of claim 1 , wherein the neurostimulator comprises two or more electrodes and positioning the neurostimulator comprises placing the two or more electrodes bilaterally into electrical communication with the tongue.

9 . The method of claim 1 , wherein providing the electrical signal to the nerve comprises electrically stimulating the hypoglossal nerve and/or its distal arborizing branches at or near its neuromuscular junction.

10 . The method of claim 1 , wherein the stimulating electrode is carried by a lead, and the lead of the neurostimulator is in direct electrical communication with a power source.

11 . The method of claim 1 , wherein the stimulating electrode is carried by a lead, and the lead of the neurostimulator includes an anchoring element.

12 . The method of claim 1 , wherein the neurostimulator comprises at least two leads, each of the leads having at least two electrodes and positioning the neurostimulator comprises positioning the at least two leads at different spatial locations.

13 . The method of claim 1 , wherein the EMG signal indicative of the onset of the inspiration phase of the given respiratory cycle comprises an increase in EMG activity compared to a baseline level of the EMG activity, the increase in EMG activity occurring prior to the onset of the inspiration phase of the given respiratory cycle.

14 . A method for treating disordered breathing that occurs during sleep in a subject, the subject having a first respiratory cycle and a second respiratory cycle subsequent to the first respiratory cycle and each of the first and second respiratory cycles having an inspiration phase followed by an expiration phase, the method comprising:

positioning a neurostimulator in a head of the subject, the neurostimulator comprising a stimulating electrode and an electromyogram (EMG) sensor, wherein the neurostimulator is positioned such that the stimulating electrode and the EMG sensor are both in electrical communication with a muscle that controls a tongue of the subject and/or both in electrical communication with a nerve that controls the muscle of the tongue;

after the expiration phase of the first respiratory cycle but prior to the onset of the inspiration phase of the second respiratory cycle, sensing EMG activity of the muscle of the tongue with the implanted EMG sensor and detecting an EMG signal indicative of an upcoming onset of the inspiration phase of the second respiratory cycle, wherein the EMG signal comprises an increase in EMG activity compared to a baseline level of the EMG activity, the increase in EMG activity occurring prior to the onset of the inspiration phase of the second respiratory cycle; and

activating the neurostimulator to provide an electrical signal to the muscle of the tongue or nerve at or just prior to the onset of the inspiration phase of the second respiratory cycle in response to the EMG signal to decrease the subject's airway resistance and treat the disordered breathing.

15 . The method of claim 14 , wherein the electrical stimulation ends at an onset of the expiration phase of the second respiratory cycle.

16 . The method of claim 14 , wherein the EMG signal indicative of the onset of the inspiration phase is sensed prior to the onset of the inspiration phase of the second respiratory cycle but after the expiration phase of the first respiratory cycle.

17 . The method of claim 14 , further comprising monitoring the sensed EMG activity for another EMG signal indicative of an onset of the expiration phase of the second respiratory cycle.

18 . The method of claim 14 , wherein the electrical stimulation ends at an end of the inspiration phase of the second respiratory cycle.

19 . The method of claim 14 , wherein the stimulating electrode and the EMG sensor are both in electrical communication with a genioglossus muscle of the tongue of the subject or both in electrical communication with a nerve that controls the genioglossus muscle.

20 . The method of claim 14 , wherein the stimulating electrode is carried by a first lead and the neurostimulator further comprises a second lead.

21 . The method of claim 14 , wherein the neurostimulator comprises two or more electrodes and positioning the neurostimulator comprises placing the two or more electrodes bilaterally into electrical communication with the tongue.

22 . The method of claim 14 , wherein providing the electrical signal to the nerve comprises electrically stimulating the hypoglossal nerve and/or its distal arborizing branches at or near its neuromuscular junction.

23 . The method of claim 14 , wherein the stimulating electrode is carried by a lead, and the stimulating electrode is carried by a lead, and the lead of the neurostimulator is in direct electrical communication with a power source.

24 . The method of claim 14 , wherein the stimulating electrode is carried by a lead, and the lead of the neurostimulator includes an anchoring element.

25 . The method of claim 14 , wherein the neurostimulator comprises at least two leads, each of the leads having at least two electrodes and positioning the neurostimulator comprises positioning the at least two leads at different spatial locations.

Assignments (4)
CHANGE OF NAME Recorded Jan 22, 2026
From: ENHALE MEDICAL, INC.
To: XII MEDICAL, INC.
Reel/Frame 074492/0235 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2026
From: CAPARSO, ANTHONY V.
To: ENHALE MEDICAL, INC.
Reel/Frame 074482/0677 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2023
From: PAPAY, FRANCIS A
To: THE CLEVELAND CLINIC FOUNDATION
Reel/Frame 064820/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2023
From: CAPARSO, ANTHONY V.
To: XII MEDICAL, INC.
Reel/Frame 064820/0936 →
Continuity (3)
Continuation 16507390 · Jul 10, 2019
Provisional Application 62696135 · Jul 10, 2018
Related Publication 20240066300A1 · Feb 29, 2024
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