Infrasonic stethoscope for monitoring physiological processes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-007/04
A61B-008/08
A61B-007/02
H04R-001/46
A61B-005/024
A61B-005/117
A61B-005/16
A61B-005/00
A61B-008/00
출원번호
US-0515670
(2015-03-17)
등록번호
US-10092269
(2018-10-09)
국제출원번호
PCT/US2015/020964
(2015-03-17)
국제공개번호
WO2016/053380
(2016-04-07)
발명자
/ 주소
Shams, Qamar A.
Zuckerwar, Allan J.
Dimarcantonio, Albert L.
출원인 / 주소
The United States of America as represented by the Administrator of NASA
대리인 / 주소
Warmbier, Andrea Z.
인용정보
피인용 횟수 :
0인용 특허 :
25
초록▼
An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone,
An infrasonic stethoscope for monitoring physiological processes of a patient includes a microphone capable of detecting acoustic signals in the audible frequency bandwidth and in the infrasonic bandwidth (0.03 to 1000 Hertz), a body coupler attached to the body at a first opening in the microphone, a flexible tube attached to the body at a second opening in the microphone, and an earpiece attached to the flexible tube. The body coupler is capable of engagement with a patient to transmit sounds from the person, to the microphone and then to the earpiece.
대표청구항▼
1. A microphone for use in an infrascope for monitoring physiological processes of a patient, said microphone comprising: a body comprising a proximal end, a distal end, a body side wall extending between the proximal end and the distal end, an end wall at the proximal end, and an aperture at the di
1. A microphone for use in an infrascope for monitoring physiological processes of a patient, said microphone comprising: a body comprising a proximal end, a distal end, a body side wall extending between the proximal end and the distal end, an end wall at the proximal end, and an aperture at the distal end;a body coupler attached to the distal end and over the aperture so as to form a substantially air-tight seal, wherein the body coupler is capable of engagement with the patient;a cavity surrounded by the body side wall, the end wall and the body coupler;a conductive backplate within the cavity and defining a backchamber between the conductive backplate and the end wall;a conductive membrane within the cavity, the conductive backplate and the conductive membrane being spaced apart from each other to form a capacitor;a flexible diaphragm of the body coupler spaced apart from the conductive membrane, wherein acoustic energy is coupled through the flexible diaphragm and to the conductive membrane whereby movement of the conductive membrane changes a capacitance between the conductive membrane and the conductive backplate; anda preamplifier board in electrical connection with the conductive backplate, the preamplifier board (i) being capable of measuring the capacitance between the conductive membrane and the conductive backplate and converting the measured capacitance into a voltage signal, and (ii) being disposed toward the proximal end away from the conductive backplate,said microphone being capable of detecting acoustic signals in a frequency range of 0.03 Hertz to 1000 Hertz. 2. The microphone of claim 1, further comprising: a conductive support plate attached to an internal surface of the body side wall within the cavity, the conductive support plate (i) comprising a base wall that divides the cavity into a distal chamber between the base wall and the distal end of the body and a proximal chamber between the base wall and the proximal end of the body, (ii) a base wall aperture within the base wall, and (iii) at least one aperture or slot within the base wall to allow air to flow from the distal chamber to the proximal chamber;an insulating member extending through the base wall aperture in the conductive support plate;a conductor extending through the insulating member and extending therefrom, the conductive member being electrically connected to the conductive backplate and to the preamplifier board,wherein the conductive backplate is on one side of the conductive support plate and the preamplifier board is on an opposite side of the conductive support plate. 3. The microphone of claim 1, wherein (i) the conductive backplate defines a plurality of holes, (ii) a slot is defined between an outer diameter of the conductive backplate and an inner wall of the body, and (iii) locations and sizes of the holes and a size of the slot are selected such that membrane motion is substantially critically damped. 4. The microphone of claim 3, wherein the conductive backplate is seated on the insulating member. 5. The microphone of claim 1, wherein a slot is defined between the preamplifier board and the body side wall, and extends around the preamplifier board. 6. The microphone of claim 1, wherein the preamplifier board defines a first proximal chamber between the preamplifier board and the end wall, and a second distal chamber between the preamplifier board and the base wall of the conductive support plate. 7. The microphone of claim 6, wherein the first proximal chamber has a volume of approximately 0.1287 cubic inch, and the second distal chamber has a volume of approximately 0.6 cubic inch. 8. The microphone of claim 1, wherein the body coupler is formed of an outer ring, the outer ring is attached to the body, and the flexible diaphragm is attached to the outer ring. 9. The microphone of claim 1, further comprising a sealed electrical connection extending though the body side wall, said sealed electrical connection enabling electrical connection of said microphone to an electronics board. 10. The microphone of claim 1, further comprising a digitizer board which is remote from the microphone, said digitizer board being capable of digitizing the voltage signal from the preamplifier. 11. The microphone of claim 1, wherein the voltage signal is digitized and electronically transmitted to a remote location. 12. An infrascope for monitoring physiological processes of a patient, said infrascope comprising the microphone of claim 1. 13. A method of using the microphone of claim 1, said method comprising: positioning the microphone to detect sound pressure from one or more locations within a patient's body. 14. A method of using two microphones of claim 1, said method comprising: positioning the two microphones to detect sound pressure from one or more locations within a patient's body. 15. A method of using the microphone of claim 1, said method comprising: generating a physiological process signal from detected sound pressure from one or more locations within a patient's body within a frequency range of 0.03 Hertz to 1000 Hertz, the physiological process signal being transmittable in real time. 16. A method of using the microphone of claim 1, said method comprising: generating a digitized signal from detected sound pressure from one or more locations within a patient's body within a frequency range of 0.03 Hertz to 1000 Hertz, the digitized signal being transmittable to a remote workstation. 17. A method of using the microphone of claim 1, said method comprising: generating a digitized signal from detected sound pressure from one or more locations within a patient's body within a frequency range of 0.03 Hertz to 1000 Hertz, the digitized signal being transmittable to a remote workstation comprising a laptop computer, a personal computer, a remote computer monitor, a smartphone, or a tablet. 18. A method of using the microphone of claim 1, said method comprising: using the microphone in (i) a stress phonocardiography test, (ii) for fetal heart monitoring during pregnancy, labor and delivery, (iii) for Doppler phonocardiography, (iv) for biometric identification, or (v) for polygraphs. 19. A method of using the microphone of claim 1, said method comprising: using the microphone to at least one of generate a spectrogram and monitor respiratory, cardiac, or fetal heart physiological processes. 20. A microphone for use in an infrascope for monitoring physiological processes of a patient, said microphone comprising: a body comprising a proximal end, a distal end, a body side wall extending between the proximal end and the distal end, an end wall at the proximal end, and an aperture at the distal end;a body coupler attached to the distal end and over the aperture so as to form a substantially air-tight seal, wherein the body coupler is capable of engagement with the patient;a cavity surrounded by the body side wall, the end wall and the body coupler;a conductive backplate within the cavity and defining a backchamber between the conductive backplate and the end wall;a conductive membrane within the cavity, the conductive backplate and the conductive membrane being spaced apart from each other to form a capacitor;a preamplifier board in electrical connection with the conductive backplate, the preamplifier board (i) being capable of measuring a capacitance between the conductive membrane and the conductive backplate and converting the measured capacitance into a voltage signal, and (ii) being disposed toward the proximal end away from the conductive backplate; andair passages disposed at different levels in the microphone for airflow from the distal end to the proximal end of the body,said microphone being capable of detecting acoustic signals in a frequency range of 0.03 Hertz to 1000 Hertz.
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이 특허에 인용된 특허 (25)
Bernstein Jonathan J. (Medfield MA), Acoustic transducer chip.
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Baumhauer ; Jr. John C. (Indianapolis IN) McAteer Jeffrey P. (Fishers IN) Rosebrock Frederick A. (Greenfield IN) Sachs Richard M. (Middletown NJ), Directional microphone assembly.
Phillipps Patrick G. (Lincoln MA) Epstein Paul (Brookline MA) Tweed David G. (Chestnut Hill MA), Electronically augmented stethoscope with timing sound.
Cornelius,Elrick Lennaert; Clemens,Paul Leonardus; van Hal,Paul C.; Geskus,Mike, Microphone for a hearing aid or listening device with improved internal damping and foreign material protection.
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