Obstructive sleep apnea collar

• US 5,123,425 A
• Filed: 09/06/1990
• Issued: 06/23/1992
• Est. Priority Date: 09/06/1990
• Status: Expired due to Term

• Current Assignee: Nellcor Puritan Bennett LLC (Medtronic Plc)
• Original Assignee: EdenTec Corporation (Medtronic Plc)
• Inventors: Shannon, John L. Jr., Bowman, Bruce R.
• Primary Examiner(s): Hafer, Robert A.
• Assistant Examiner(s): BROWN, MICHAEL A
• Application Number:
  US07/578,150
• Time in Patent Office: 656 Days
• Field of Search: 128/846, 128/848, 128/859, 128/860, 128/724, 128/733, 128/773, 128/774, 128/777, 128/419 R, 340/573, 340/575, 340/626, 340/665, 340/668
• US Class Current: 128/848
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/4818 Sleep apnoea
• CPC Class Codes: A61F 5/56 Devices for preventing snoring by influencing the respiratory system by gas treatment A61M16/00
• CPC Class Codes: A61N 1/3601 of respiratory organs

Abstract

A system for the treatment of obstructive sleep apnea packaged in a collar which can be worn by a patient without any special preparation. The collar is adjustable using a fastener such as hook and latch, to accommodate variations in neck size. The collar is properly oriented using variations in physical shape and/or color. An optional feedback system permits the patient to readily verify proper orientation.

The collar contains at least one sensor to monitor functioning of the respiratory system of the patient.

The output of the sensor(s) is processed by battery powered electronics located within or in proximity to the collar. When an apnea episode is detected, the electronics module generates bursts of pulsatile current which are conducted to electrodes located on and positioned by the collar or in proximity to the collar. The pulsatile current is transferred transcutaneously from the electrodes to the nerves innervating the genioglossus and other muscle groups causing them to contract or through afferent excitation causing reflexive contraction of these muscles to thereby clear the upper air passageway.

Claims

1. An apparatus for treating obstruction of an upper air passageway of a patient comprising:

a. means for sensing the onset of an obstructive sleep apnea episode;

b. means coupled to said sensing means for generating muscle stimulating signals which directly produce contraction of muscle tissue of said upper air passageway;

c. electrode means coupled to said generating means for transcutaneously transferring said muscle stimulating signals directly to said muscle tissue of said upper air passaageway to clear said upper air passageway of said patient; and

d. means attached to said sensing means, said generating means, and said electrode means for maintaining said sensing means, said generating means, and said electrode means in proximity with said patient.

2. An apparatus according to claim further comprising means coupled to said maintaining means for positioning said maintaining means with respect to said patient.

3. An apparatus according to claim 2 wherein said maintaining means further comprises a collar.

4. An apparatus according to claim 3 wherein said sensing means further comprises an audio sensor.

5. An apparatus according to claim 3 wherein said sensing means further comprises a strain gauge.

6. An apparatus according to claim 3 wherein said sensing means further comprises an oximeter.

7. An apparatus according to claim 3 wherein said sensing means further comprises an air flowmeter.

8. An apparatus according to claims 2, 3, 4, 5, 6, or 7 wherein said positioning means further comprises a unique shape of said maintaining means for positioning said maintaining means.

9. An apparatus according to claim 8 wherein said unique shape further comprises a chin notch.

10. An apparatus according to claim 9 further comprising means coupled to said generating means for verifying proper placement of said maintaining means.

11. An apparatus according to claim 8 wherein said unique shape further comprises at least one shoulder notch.

12. An apparatus according to claim 11 further comprising means coupled to said generating means for verifying proper placement of said maintaining means.

13. An apparatus according to claim 8 further comprising means coupled to said generating means for verifying proper placement of said maintaining means.

14. An apparatus according to claims 2, 3, 4, 5, 6, or 7 wherein said positioning means further comprises a unique color.

15. An apparatus according to claim 14 further comprising means coupled to said generating means for verifying proper placement of said maintaining means.