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1. WO1989005604 - PROCEDE ET DETECTEUR ACOUSTIQUE D'ANEVRISMES

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

WE CLAIM:
1. An acoustic aneurysm detector comprising
sensor means in contact with a patient ■for receiving sound emanating from said patient and for converting the sound to responsive electronic signals,
electronic means for filtering and amplifying the responsive electrical signals to create processed electrical signals, and
analysis means operatively associated with said electronics means for receiving said
processed electrical signals and for providing an indication of the frequency of said sound over a specified time range, whereby the presence or absence of an aneurysm in said patient can be detected.
2. The detector of Claim 1, including
said hydrophone sensors means comprising of a plurality of hydrophone sensors in contact with said patient and a hydrophone sensor for monitoring room noise.
3. The detector of Claim 2, including
said hydrophone sensors in contact with said patient being located on said patient's head and neck.
4. The detector of Claim 3, including
said hydrophone sensors in contact with said pat'ient being at least six in number.
5. The detector of Claim 4, including
five of said hydrophone sensors being positioned for monitoring said sound from said aneurysm and one of said hydrophone sensors positioned for monitoring biological noise.

6. The detector of Claim 1, including
at least one of said sensors being mounted in helmet-like means for positioning on said patient's head.
7. The detector of Claim 6, including
said helmet-like means having a central hub and a plurality of fingers which have disposed on their ends said hydrophone sensor means.
8. The detector of Claim 7, including
said fingers having adjustment means, whereby intimate contact of said hydrophone sensors with said patient's head is maintained.
.. 9. The detector of Claim 8, including
said adjustment means including tongue and groove means which are relatively slidable.
10. The detector of Claim 9, including
said helmet-like means having five fingers with one said hydrophone sensor associated with each.
ii. The detector of Claim 1, including
said electronic means having a plurality signal channel means and power supply means.
12. The detector of Claim 11, including
said signal channel means having an EKG channel and a plurality of sensor channel means.
13. The detector of Claim 12, including
said sensor channel means being provided for each hydrophone sensor means.
14. The detector of Claim 13, including
said sensor channel means having filter means and amplifier means for converting said
responsive electrical signals into said processed electrical signals which can be input into said
analysis means.

15. The detector of Claim 1, including
said analysis means comprising analog to digital converter means for digitization of said processed electrical signals and computer means for receiving, analyzing and outputting said indication of the frequency of said digitized and converted sound signals.
16. The detector of Claim 15, including
said computer means having multichannel digitization software for analyzing and outputting said digitized and converted sound.
17. The detector of Claim 16, including
said digitization software outputting a frequency versus time indication of said sound.
18. The detector of Claim 17, including
said software having means capable of presenting output information which presents a visual display which enables viewer to determine whether a bruit or a spike exists.
19. The detector of Claim 18, including
said software having means capable of outputting a Fourier Fast Transform of said sound.
20. The detector of Claim 18, including
said software having means capable of outputting a spectrogram analysis of said sound.
21. The detector of Claim 20, including
said software having means capable of outputting a Fourier Fast Transform of said sound.
22. The detector of Claim 19, including
said software having means capable of outputting a spectrogram analysis of said sound.

23. A method of detecting the presence or absence of an aneurysm in a patient comprising the steps of
providing an acoustic aneurysm detector including hydrophone sensor means, an electronic means, and analysis means,
placing said hydrophone sensors means on said patient to receive said sound from said patient,
converting of said sound by said
hydrophone sensors means to responsive electrical signals,
amplifying and filtering said responsive electrical signals by said electronic means to create processed electrical signals,
delivering the processed electrical signals to said analysis means, and
outputting an indication of the frequency of said sound over a specified time range, whereby the presence or absence of an aneurysm in a patient may be detected.
24. The method of Claim 23, including
maintaining intimate contact of said hydrophone sensor means with said patient.
25. The method of Claim 24, including
v providing helmet-like means to hold said hydrophone sensor means in intimate contact with said patient's head.
26. The method of Claim 23, including
maintaining said patient in a reclining position.
27. The method of Claim 23, including
processing said processed electrical signals by a Fast Fourier Transform and outputting a Digital Fourier Transform of said processed electrical signals.

28. The method of Claim 23, including
processing said processed electrical signals by a spectrogram analysis and outputting a spectrogram of said processed electrical signals.
29. A sensor supporting device for use in determining the presence or absence of an aneurysm in a patient comprising
a plurality of sensor means secured to a helmet-like device adapted to be worn by said patient, whereby placement of said sensor means facilitates detection of said aneurysm.
30. The device of Claim 29, including
said helmet-like means having a central hub and a plurality of fingers which have disposed on their ends said hydrophone sensor means.
31. The detector of Claim 30, including
said fingers having adjustment means, whereby intimate contact of said hydrophone sensors with said patient's head is maintained.
32. The detector of Claim 31, including
said adjustment means including tongue and groove means which slide.
33. The detector of Claim 32, including
said helmet-like means having five fingers with a said hydrophone sensor associated with each. AMENDED CLAIMS
[received by the International Bureau on 30 June 1989 (30.06.89);
original claim 29 cancelled; original claims 1-14, 18, 23-25,30,31 and 33 amended;
other claims unchanged (5 pages)]

1. An acoustic aneurysm detector comprising
a plurality of sensors adapted to be -in contact with a patient for receiving sound emanating from said patient and for converting the sound to responsive electronic signals,
means for adjustably positioning said sensors in contact with the patient's head,
electronic means for filtering and amplifying the responsive electrical signals to create processed electrical signals, and
analysis mean's operatively associated with said electronic means for receiving said processed electrical signals and for simultaneously providing an output indication of the frequency and relative magnitude of said sound at each of a plurality of time intervals within a cardiac cycle of said patient, whereby the presence or absence of an aneurysm in said patient can be detected.
2. The detector of Claim 1, wherein
said plurality of sensors adapted to be in contact with said patient and a sensor for monitoring room noise.
3. The detector of Claim 2, wherein
said means for positioning is further adapted to position one of said sensors on said
patient's neck.
4. The detector of Claim 3, wherein
said sensors are at least six in number.
5. The detector of Claim 4, wherein
five of said sensors are adapted to be positioned for monitoring said sound from said aneurysm and one of said sensors is adapted to be positioned for monitoring biological noise.

6. The detector of Claim 1, wherein
at least one of said sensors is mounted in helmet-like means for positioning on said patient's head.
7. The detector of Claim 6, wherein
said helmet-like means has a central, hub and a plurality of fingers which have disposed on their ends said sensors.
8. The detector of Claim 7, wherein
said fingers have adjustment means, whereby said sensors are adapted to be in contact with said patient's head.
9. The detector of Claim 8, wherein
said adjustment means include tongue and groove means which are slidable relative to each other.
10. The detector of Claim 9, wherein
said helmet-like means has five fingers with one said sensor associated with each.
11. The detector of Claim 1, wherein
said electronic means has a plurality of signal channel means and power supply means.
12. The detector of Claim 11, wherein
said signal channel means has an EKG channel and a plurality of sensor channel means.
13. The detector of Claim 12, wherein
said sensor channel means are provided for each of said sensors.
14. The detector of Claim 13, wherein
said sensor channel means has filter means and amplifier means for converting said
responsive electrical signals into said processed electrical signals for input into said analysis means.
15. The detector of Claim 1, including
said analysis means comprising analog to digital converter means for digitization of said processed electrical signals and computer means for receiving, analyzing and outputting said indication of the frequency of said digitized and converted sound signals.
16. The detector of Claim 15, including
said computer means having multichannel digitization software for analyzing and outputting said digitized and converted sound.
17. The detector of Claim 16, including
said' digitization software outputting a frequency versus time indication of said sound.
18. The detector of Claim 17, including
said software having means capable of presenting output information which presents a visual display which enables a viewer to determine whether a bruit or a spike exists.
19. The detector of Claim 18, including
said software having means capable of outputting a Fourier Fast Transform of said sound.
20. The detector of Claim 18, including
said software having means capable of outputting a spectrogram analysis of said sound.
21. The detector of Claim 20, including
said software having means capable of outputting a Fourier Fast Transform of said sound.
22. The detector of Claim 19, including
said software having means capable of outputting a spectrogram analysis of said sound.
23. A method of detecting the presence or absence of an aneurysm in a patient comprising the steps of
providing an acoustic aneurysm detector including a plurality of sensors, an electronic means, and analysis means, mounting said sensors on said patient to receive a sound from said patient,
converting said sound by said sensors to- responsive electrical signals,
amplifying and filtering said responsive electrical signals by said electronic means to create processed electrical signals,
delivering said processed electrical signals to said analysis means, and
outputting a simultaneous indication of the frequency and relative magnitude of said sound at each of a plurality of time intervals within a cardiac cycle of said patient, whereby the presence or absence of said aneurysm in a patient may be detected.
24. The method of Claim 23, including
maintaining intimate contact of said sensors with said patient.
25. The method of Claim 24, wherein
said mounting step includes providing helmet-like means to hold said sensors in intimate contact with said patien rs head.
26. The method of Claim 23, including
maintaining said patient in a reclining position.
27. The method of Claim 23,- including
processing said processed electrical signals by a Fast Fourier Transform and outputting a Digital Fourier Transform of said processed electrical signals.
28. The method of Claim 23, including
processing said processed electrical signals by a spectrogram analysis and outputting a spectrogram of said processed electrical signals.

30. A sensor device for use in determining the presence or absence of an aneurysm in a patient comprising:
a plurality of sensors,
a helmet-like device adapted to be worn on said patient's head including means for receiving said plurality of sensors, said sensors being received within said receiving means such that said sensors are adapted to be in contact with said patient's head, and
said helmet-like device having a central hub, and wherein said receiving means includes a plurality of fingers which have disposed on their ends said sensors.
31. The detector of Claim 30, wherein
said fingers have adjustment means, whereby intimate contact of said sensors with said patient's head is maintained.
32. The detector of Claim 31, including
said adjustment means including tongue and groove means which slide.
33. The detector of Claim 32, including
said plurality of fingers comprise five fingers with a said sensor associated with each of said five fingers.