| 主权项 |
1. A data acquisition, communication and evaluation system having a chest piece for fitting to human skin, a receiver unit and a distant server wherein:
the chest piece encapsulates a sound transducer for acquiring raw sound data for being communicated in the form of a data signal, the receiver, in operation, is in communication with said chest piece, the receiver is a portable device having a display unit and data processing ability, and is further connectable to a local data network or global internet via wired or wireless communication interface; the distant server comprises computer coded instructions which, in operation, processes said data signals, stores medical information in association with said data signals and communicates said data signals and/or medical information with at least two recipients, wherein said at least two recipients are able to receive and send said data signals and/or said medical information, and wherein said at least two recipients are selected from the list consisting of devices held by healthcare personnel, medical facilities and users, wherein said data signals and/or medical information are selective based on the selected recipient; the system is provided with separate databases, each of said databases is related with a different respective pre-determined zone on human torso; the system comprises a plurality of pre-defined data acquisition channels and/or data acquisition locations for evaluating data from each said pre-determined zone, and wherein said system, in operation, generates directives for a user to place said chest piece at said pre-determined zones in accordance with a pre-determined sequence; the system, in operation, estimates an air flow signal from said data signal using mathematical algorithms, predicts inspiration and expiration phases having sub-phases, within a flow cycle, and predicts sub-phases of inspiration and sub-phases of expiration; the system, in operation, detects and computes
spectral and temporal characteristics of crackles, comprising timing, frequency content, types in terms of fine, medium and coarse ranges, and counts, and,spectral and temporal characteristics of wheezes, comprising timing, at least one peak frequency component, and a percentage of duration within said sub-phases of inspiration and expiration, within inspiration and expiration, within flow cycle, and over total auscultation period; the system, in operation, generates and displays a frequency-domain representation with regard to each said zone and each said sub-phase, from which said system calculates and displays various parameters related to auscultation and makes comparisons of said parameters against related parameters obtained from healthy reference data, and displays results of said comparisons; the system, in operation, displays
the detected crackles with color codes and shape codes in a time-frequency representation, where time is expressed in said sub-phases of inspiration and expiration, and where frequency is expressed in terms of fine, medium and coarse crackle frequency ranges, andthe detected wheezes with color codes and shape codes in a time-frequency representation, where time is expressed in said sub-phases of inspiration and expiration, and where frequency is a continuous axis; the system comprises a computer-coded classifier which, in operation, utilizes information from said frequency-domain representations, and said time-frequency representations for each zone and sub-phase, together with mathematical transforms, signal and system characterization methods, parametric models, and the computer-coded classifier, in operation, combines data and calculations for each zone and sub-phase, and generates a probabilistic health condition report with regard to said database; and the system, in operation, updates said computer-coded classifier as new data add to said database. |
