MODULAR ACOUSTIC SPIROMETER
First Claim
1. A system for measuring spirometric flow rate using a microphone and a mobile computer device connected to or integrated with the microphone, wherein the mobile computer device includes a processor, the system comprising:
- a transducer adapted for converting spirometric flow rate into an audible signal with an audio frequency characteristic of the spirometric flow rate wherein the microphone is external to said transducer and is adapted to detect said audible signal having said audio frequency and to convert said audible signal to a corresponding electrical signal having the audio frequency;
a computer readable medium including instructions executable by a processor, wherein said instructions are operable to enable the processor;
to receive said electrical signal, to process the electrical signal to derive said audio frequency and to output as a result the spirometric flow rate responsive to said audio frequency.
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Accused Products
Abstract
A system for measuring spirometric flow rate using a microphone and a mobile computer device connected to or integrated with the microphone. The mobile computer device may include a processor and storage. The storage may be operatively connectible, e.g over a network, to a computer system used by a practitioner. The system has a transducer adapted for converting spirometric flow rate into an audible signal with an audio frequency characteristic of the spirometric flow rate. The microphone is external to the transducer and may be adapted to detect the audible signal having an audio frequency and to convert the audible signal to a corresponding electrical signal having the audio frequency. The audio frequency may be characteristic of a peak expiratory flow rate and the output result is characteristic of the peak expiratory flow rate.
19 Citations
18 Claims
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1. A system for measuring spirometric flow rate using a microphone and a mobile computer device connected to or integrated with the microphone, wherein the mobile computer device includes a processor, the system comprising:
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a transducer adapted for converting spirometric flow rate into an audible signal with an audio frequency characteristic of the spirometric flow rate wherein the microphone is external to said transducer and is adapted to detect said audible signal having said audio frequency and to convert said audible signal to a corresponding electrical signal having the audio frequency; a computer readable medium including instructions executable by a processor, wherein said instructions are operable to enable the processor;
to receive said electrical signal, to process the electrical signal to derive said audio frequency and to output as a result the spirometric flow rate responsive to said audio frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for measuring spirometric flow rate using a mobile computer device including a processor, a memory and a microphone, the method comprising:
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transducing spirometric flow into an audible signal having an audio frequency characteristic of the spirometric flow rate; converting said audible signal to a corresponding electrical signal having the audio frequency; enabling the processor to receive said electrical signal, to process the electrical signal to derive said audio frequency and to output the spirometric flow rate responsive to said audio frequency; wherein the method is characterized by; receiving said audible signal using the microphone of the mobile computer device. - View Dependent Claims (10, 11, 12, 13)
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14. A transducer adapted for converting spirometric flow rate into an audible signal, the transducer comprising:
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a stator including a including a stator plate with a plurality of stator holes; a rotor, rotatably connected to said stator, the rotor including a plurality of rotor blades configured to rotate said rotor responsive to the spirometric flow, characterised by; avoiding having a microphone, whereby the audible signal is received externally to the transducer while avoiding a cable connection thereto, wherein the audible signal includes an audio frequency characteristic of the spirometric flow rate. - View Dependent Claims (15, 16, 17)
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18. A computer readable medium including instructions executable by a mobile computer device including a processor and a microphone for use in a system for measuring a spirometric flow rate, the system including a transducer adapted to transduce a spirometric flow rate into an audible signal with an audio frequency characteristic of the spirometric flow rate, wherein the microphone receives the audible signal, wherein the microphone is external to said transducer thereby avoiding a cable between the mobile computer device and the transducer, the computer readable medium comprising:
- instructions executable by the processor, wherein said instructions are operable to enable the processor;
to receive an electrical signal from the microphone responsive to said audio frequency, to process the electrical signal to derive said frequency and to output the spirometric flow rate responsive to said audio frequency.
- instructions executable by the processor, wherein said instructions are operable to enable the processor;
Specification