Acoustic pressure inducers and methods for treatment of obstructive sleep apnea
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-011/00
A61M-016/00
F04B-043/04
A61M-016/06
A61M-016/08
출원번호
US-0561762
(2012-07-30)
등록번호
US-8967143
(2015-03-03)
발명자
/ 주소
Gutmark, Ephraim
Khosia, Siddarth
Oren, Liran
출원인 / 주소
University of Cincinnati
대리인 / 주소
Everett, Denise M.
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
Acoustic pressure inducers and methods for treating obstructive sleep apnea are disclosed. In one embodiment, an acoustic pressure inducer includes an actuator housing having an orifice, a tube having a first end and a second end, and a nasal cannula fluidly coupled to the second end of the tube. Th
Acoustic pressure inducers and methods for treating obstructive sleep apnea are disclosed. In one embodiment, an acoustic pressure inducer includes an actuator housing having an orifice, a tube having a first end and a second end, and a nasal cannula fluidly coupled to the second end of the tube. The first end of the tube is fluidly coupled to the orifice of the actuator housing such that a gap is present between the first end of the tube and the orifice. The nasal cannula is configured to be positioned proximate to nostrils of a user. The acoustic pressure inducer further includes a vibrating element within the actuator housing and a signal generator. The signal generator component is electrically coupled to the vibrating element and configured to provide an electronic signal to the vibrating element to cause the vibrating element to oscillate within the actuator housing and produce an acoustic jet of air that exits the orifice and enters a nasal passageway of the user through the nasal cannula.
대표청구항▼
1. An acoustic pressure inducer for treatment of obstructive sleep apnea comprising: an actuator housing comprising an orifice;a tube having a first end and a second end, the first end fluidly coupled to the orifice of the actuator housing, wherein a gap is present between the first end of the tube
1. An acoustic pressure inducer for treatment of obstructive sleep apnea comprising: an actuator housing comprising an orifice;a tube having a first end and a second end, the first end fluidly coupled to the orifice of the actuator housing, wherein a gap is present between the first end of the tube and the orifice;a nasal cannula fluidly coupled to the second end of the tube, wherein the nasal cannula is configured to be positioned proximate to nostrils of a user;a vibrating element within the actuator housing, wherein the vibrating element and the actuator housing define an acoustic chamber that is fluidly coupled to the orifice; anda signal generator component electrically coupled to the vibrating element and configured to provide an electronic signal to the vibrating element to cause the vibrating element to oscillate within the actuator housing, wherein: oscillation of the vibrating element produces an acoustic jet of air comprising a train of vortices; andthe acoustic jet of air exits the orifice and enters a nasal passageway of the user through the nasal cannula to prevent respiratory tract occlusion. 2. The acoustic pressure inducer of claim 1, wherein the vibrating element comprises a piezoelectric diaphragm. 3. The acoustic pressure inducer of claim 1, wherein the orifice comprises a slot in the actuator housing. 4. The acoustic pressure inducer of claim 1, wherein the actuator housing comprises multiple orifices. 5. The acoustic pressure inducer of claim 1, wherein a height of the gap is adjustable to vary a flow rate of the acoustic jet of air. 6. The acoustic pressure inducer of claim 1, wherein a frequency of the oscillation of the vibrating element is substantially equal to a resonant frequency of the vibrating element. 7. The acoustic pressure inducer of claim 1, further comprising an outer housing, wherein the actuator housing, the vibrating element and the signal generator component are disposed within the outer housing, and the tube extends from the outer housing. 8. The acoustic pressure inducer of claim 1, wherein the actuator housing further comprises: a first housing half, wherein the orifice is provided in the first housing half; anda second housing half, wherein the vibrating element is disposed between the first housing half and the second housing half. 9. The acoustic pressure inducer of claim 8, wherein the second housing half comprises a ring, and the vibrating element is disposed at an opening of the ring. 10. The acoustic pressure inducer of claim 1, wherein a frequency of the acoustic jet is such that an impedance of the acoustic jet of air is matched to an impedance of the nasal passageway. 11. The acoustic pressure inducer of claim 1, further comprising a battery power source electrically coupled to the signal generator component. 12. A method of treating obstructive sleep apnea, the method comprising: generating an acoustic jet of air comprising a train of vortices, wherein the acoustic jet of air is generated by oscillatory motion of a vibrating element within an actuator housing such that the acoustic jet of air exits an acoustic chamber defined by the vibrating element and the actuator housing through an orifice in the actuator housing; and directing the acoustic jet of air into a nasal passageway of a user through a nasal cannula. 13. The method of claim 12, wherein a seal is not present between the nasal cannula and nostrils of the user. 14. The method of claim 12, wherein the vibrating element comprises a piezoelectric diaphragm. 15. The method of claim 12, wherein the nasal cannula is fluidly coupled to a tube that is fluidly coupled to the orifice of the actuator housing. 16. The method of claim 15, wherein a gap is present between the tube and the orifice of the actuator housing. 17. The method of claim 16, further comprising adjusting a height of the gap to vary a flow rate of the acoustic jet of air. 18. The method of claim 12, further comprising adjusting the oscillatory motion of the vibrating element such that an impedance of the acoustic jet of air is matched to an impedance of the nasal passageway. 19. The method of claim 12, wherein a frequency of the oscillatory motion of the vibrating element is substantially equal to a resonant frequency of the vibrating element. 20. An acoustic pressure inducer for treatment of obstructive sleep apnea comprising: an actuator housing comprising an orifice;a tube having a first end and a second end, the first end fluidly coupled to the orifice of the actuator housing such that a gap is present between the first end of the tube and the orifice;a vibrating element within the actuator housing, wherein the vibrating element and the actuator housing define an acoustic chamber that is fluidly coupled to the orifice; anda signal generator component electrically coupled to the vibrating element and configured to provide an electronic signal to the vibrating element to cause the vibrating element to oscillate within the actuator housing, wherein: oscillation of the vibrating element produces an acoustic jet of air comprising a train of vortices; andthe acoustic jet of air exits the orifice and enters a nasal passageway of a user through the second end of the tube without a fluid seal at nostrils of the user to prevent respiratory tract occlusion.
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