Electronic stethoscope

a technology of stethoscope and stethoscope body, which is applied in the field of stethoscope, can solve the problems of not being widely used by medical personnel, consuming too much power, weighing too much, etc., and achieves the effect of improving performance characteristics

a technology of stethoscope and stethoscope body, which is applied in the field of stethoscope, can solve the problems of not being widely used by medical personnel, consuming too much power, weighing too much, etc., and achieves the effect of improving performance characteristics

US20080037800A1Inactive Publication Date: 2008-02-14GRASFIELD JAMES A +4
0 Cites 19 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic stethoscope
  • Electronic stethoscope
  • Electronic stethoscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] For purposes of illustration only, and not to limit generality, the present invention will now be explained with reference to an electronic stethoscope for use in heart and lung diagnosis in humans. Specific ranges of operation and frequencies will be discussed in this context. One skilled in the art will appreciate, however, that the present invention is not so limited and that by changing the operational frequencies and other stethoscope parameters, the present invention may be used to diagnose other types of human biological activity as well as biological activity in infants, children, animals, and so on.

[0039] Reference is now made to FIGS. 1, 2, and 3 which Figures illustrate the overall configuration of the electronic stethoscope of the invention. The electronic stethoscope 10 includes a chestpiece 12 that is used to detect and convert biological activity of particular organs into acoustic pressure waves (i.e., acoustic signals). The acoustic signals are transmitted th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An electronic stethoscope having several modes of operation to process acoustic signals to provide filtered signals useful for diagnosis. In one mode of operation the stethoscope substantially provides only acoustic signals generated by biological activity of the heart. In another mode of operation, the acoustic stethoscope substantially provides only acoustic signals generated by biological activity of the lungs. In another mode of operation, the electronic stethoscope disproportionately amplifies abnormal heart sounds and normal heart sounds to enhance diagnosis of heart abnormalities. The electronic stethoscope is operated in a manner similar to a conventional acoustic stethoscope and has similar spectral characteristics, thus allowing a user with acoustic stethoscope experience to easily use the electronic stethoscope.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of application Ser. No. 11 / 483,152, filed Jul. 7, 2006, which in turn is a continuation of application Ser. No. 11 / 269,128, filed Nov. 8, 2005, which in turn is a continuation of application Ser. No. 11 / 077,540, filed Mar. 9, 2005, which in turn is a continuation of application Ser. No. 10 / 872,143, filed Jun. 18, 2004, which in turn is a continuation of application Ser. No. 10 / 646,521, filed Aug. 22, 2003, which in turn is a continuation of application Ser. No. 10 / 313,967, filed Dec. 6, 2002, which in turn is a continuation of application Ser. No. 10 / 128,149, filed Apr. 23, 2002, which in turn is a continuation of application Ser. No. 09 / 258,263, filed Feb. 25, 1999, which in turn is a continuation of application Ser. No. 09 / 127,992, filed Aug. 3, 1998, which in turn is a continuation of application Ser. No. 08 / 685,451, filed Jul. 19, 1996, which in turn is a continuation-in-part of application Ser. No...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
14 Feb 2008
Publication
US20080037800A1
IPC
A61B7/04; A61B7/00
CPC
A61B7/04; A61B7/003
Inventors
GRASFIELD, JAMES A.; WINSTON, DAVID E.