US3858575A - Body noise detector - Google Patents

Body noise detector Download PDF

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Publication number
US3858575A
US3858575A US363582A US36358273A US3858575A US 3858575 A US3858575 A US 3858575A US 363582 A US363582 A US 363582A US 36358273 A US36358273 A US 36358273A US 3858575 A US3858575 A US 3858575A
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US
United States
Prior art keywords
housing
deformable wall
pressure plate
chamber
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US363582A
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English (en)
Inventor
Ewald Rose
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Individual
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Individual
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Filing date
Publication date
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Publication of US3858575A publication Critical patent/US3858575A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/251—Means for maintaining electrode contact with the body
    • A61B5/252—Means for maintaining electrode contact with the body by suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • A61B7/04—Electric stethoscopes

Definitions

  • ABSTRACT A body noise detector includes a housing having a first-chamber therein containing a microphone capsule and a second reduced-pressure chamber therein closed on one side by a resilient deformable wall, and connected to an annular groove surrounding a pad attached to the microphone capsule.
  • the deformable wall is loaded by a spring against pressing into the reduced-pressure chamber.
  • a lever carrying a pressure roller is pivoted on the housing so wall.
  • the invention relates to a device for detecting heartnoise and other bodily noises for diagnostic purposes.
  • the human body has skin which is, generally speaking, loose or flaccid as it is supported on a layer of fat.
  • Devices of this kind consisting of a housing having a chamber which is open to the skin and carries, for example, a microphone capsule, and has an annular contact surface with an annular channel therein which is connected to a device producing suction. This serves to tauten the skin of the patient to enable bodily sounds to be detected.
  • the invention provides, to achieve this object, that the housing of the detector encloses a chamber connected to the annular channel.
  • This chamber is separate from the chamber containing the microphone capsule and is provided on one side with a resilient deformable wall which can be pressed into the chamber and then return to its former state.
  • the resilient deformable wall may be an elastic rubber diaphragm, and a spring may be disposed in the chamber to oppose depression of the diaphragm, and to act to retain the diaphragm after depression thereof.
  • the spring may abut at one end against the wall of the chamber opposite the diaphragm and at the other, against a contact plate which contacts the diaphragm.
  • a stop for the pressure plate is arranged on the interior of the wall of the chamber.
  • finger supports or grips are provided on the exterior of the housing.
  • a lever may also be pivoted on the housing at one side thereof, and the lever has a free end which is designed as an actuation handle.
  • the lever carries a pressure roller located between the pivot'and the free end so that it will press upon the centre of the resilient deformable wall on movement of the lever towards the housing.
  • FIG. 1 is a sectional view of a first embodiment of detector in accordance with the invention.
  • FIG. 2 is a sectional view of a second, modified, embodiment of detector in accordance with the invention.
  • the detector device shown in FIG. 2 comprises a 2 generally cylindrical housing 1 having encircling finger supports or grips 2 on its exterior.
  • housing 1 Disposed within housing 1 is an inner body 3 having a hollow space 3a therein, in which a microphone capsule 4 is accommodated.
  • a lead 5 connecting the microphone capsule 4 to apparatus outside of the housing 1 passes through the wall of inner body 3 and the wall of housing 1. The openings provided in the walls for this purpose are sealed in air-tight manner.
  • a sensing pad 6 is mounted on the microphone capsule 4. The pad 6 picks up body noises and transfers the sound vibrations to the microphone capsule 4.
  • the hollow space 3a enclosing the microphone capsule 4 can be connected to a hearing tube if the detector is to be used as a stethoscope.
  • the housing 1 also encloses, above the central body 3, an underpressure chamber 11.
  • the chamber 11 is sealed in air-tight manner at the top by a resilient elastic rubber membrane 7.
  • a spring 8 which carries a pressure plate 9, which is in contact with the under-surface of the membrane 7.
  • the pressure plate 9 has a rim 9a which extends there around to provide a step which abuts a circular stop la provided on the surrounding wall of the chamber 11 to limit the upward movement of the pressure plate 9.
  • the walls of the housing 1 and body 3 extend downwardly to form an annular ring 10 and are shaped to provide an annular channel 10a which is in communication with the chamber 11.
  • the communication may be effected by an annular gap between the housing 1 and body 3, the spacing therebetween being maintained by spacing elements, or by way of bores or passages, or other air channels.
  • FIG. 2 differs from that of FIG. 1 in that a lever 12 is pivotally mounted at one end on the housing 1 and is formed to provide a handle 13 at its other, free, end.
  • the lever 12 carries a pressure roller 14 which is positioned so as to engage the centre of the deformable wall 7 when the lever is depressed.
  • the device is used as follows:
  • the user holds the detector between his fingers so that the fingers lie between the finger supports or grips 2.
  • the spring 8 is compressed in this way, and the volume of the chamber 11 is reduced, driving out some of the air.
  • the detector is then placed on the patients body and held against it and the thumb pressure on the membrane is relieved.
  • the membrane is returned to its relaxed position by the spring 8 and pressure plate 9 and returns the chamber 11 to its former volume.
  • no air can enter the chamber when the housing is pressed onto the patients body, an underpressure arises in the chamber and this causes the skin underlying the detector to be pulled tight by being drawn into the channel 10.
  • the lever 12 instead of pressing directly on the membrane 7, the lever 12 is depressed so that pressure roller 14 presses in the membrane 7. This achieves the same effect as already described.
  • a body noise detector according to the invention has the advantage that no special suction device needs to be provided outside the housing, which would alter the balance of the detector.
  • the entire detector is a selfcontained unit without attached suction hoses or other accessories.
  • a further advantage of the device of the invention lies in the fact that, even in a series of measurements, the underpressure acting in the channel is always the same so that the results are comparable, and not invalidated by different transmission intensities caused by different skin tensions.
  • the volume of the chamber 11 has to be reduced by 13.16 percent on condition that the membrane 7 returns to its initial position. If the membrane has a diameter of 4 cm. then the spring must exert a pressure of 1,654 g. so that an underpressure of lOO mm/Kg is achieved under normal atmospheric pressure.
  • a body noise detector comprising a housing enclosing an underpressure chamber, said housing including a rigid wall portion and a deformable wall portion, an annular ring projecting from the housing and forming a contact surface engageable with a patients body, said annular ring having a passage therethrough communicating between the contact surface and the underpressure chamber, said annular ring defining a cavity, microphone means carried by said housing and disposed in said cavity for engagement with a patients body, means for transmitting the noise detected by the microphone means, a pressure plate within said underpressure chamber and engageable with said deformable wall and spring means connected between said rigid housing wall and said pressure plate for urging said deformable wall into substantially undeformed condition by said pressure plate.
  • lever means pivotally connected to the housing and having a free end spaced from its pivotal connection, said lever means overlying said deformable wall portion, and a pressure roller carried by said lever and engageable with the central portion of the deformable wall by movement of said lever means free end toward the housing.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Acoustics & Sound (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
US363582A 1973-03-05 1973-05-24 Body noise detector Expired - Lifetime US3858575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2310953A DE2310953C3 (de) 1973-03-05 1973-03-05 Vorrichtung zur besseren Geräuschaufnahme von Körpern mit schlaffer Haut, insbesondere zum Abhören von Herzschlaggeräuschen

Publications (1)

Publication Number Publication Date
US3858575A true US3858575A (en) 1975-01-07

Family

ID=5873875

Family Applications (1)

Application Number Title Priority Date Filing Date
US363582A Expired - Lifetime US3858575A (en) 1973-03-05 1973-05-24 Body noise detector

Country Status (3)

Country Link
US (1) US3858575A (de)
JP (1) JPS49118293A (de)
DE (1) DE2310953C3 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240444A (en) * 1978-07-31 1980-12-23 Snyder Peter E Apparatus for sensing coughs
US4458693A (en) * 1981-03-13 1984-07-10 Medtronic, Inc. Monitoring system
DE3639263A1 (de) * 1985-11-16 1987-06-25 Yakichi Higo Vorrichtung zur ueberpruefung der funktionsfaehigkeit von in lebende koerper eingesetzte endoprothesen
US4784154A (en) * 1986-11-13 1988-11-15 Colin Electronics Co., Ltd. Interference resistant biomedical transducer
US4823808A (en) * 1987-07-06 1989-04-25 Clegg Charles T Method for control of obesity, overweight and eating disorders
US5022402A (en) * 1989-12-04 1991-06-11 Schieberl Daniel L Bladder device for monitoring pulse and respiration rate
WO2001022884A1 (en) * 1999-09-30 2001-04-05 Siemens Corporate Research, Inc. Handheld sensor for acoustic data acquisition
US6415033B1 (en) 1999-09-15 2002-07-02 Ilife Systems, Inc. Physiological condition monitors utilizing very low frequency acoustic signals
US6416483B1 (en) 2000-03-24 2002-07-09 Ilife Systems, Inc. Sensor and method for detecting very low frequency acoustic signals
US6575916B2 (en) 2000-03-24 2003-06-10 Ilife Solutions, Inc. Apparatus and method for detecting very low frequency acoustic signals
US6706002B1 (en) * 2000-03-24 2004-03-16 Ilife Systems, Inc. System and method for remotely monitoring at least one physiological characteristic of a child
US6878117B1 (en) 1999-09-29 2005-04-12 Zargis Medical Corp. Handheld sensor for acoustic data acquisition
US20090326418A1 (en) * 2006-08-07 2009-12-31 Deepbreeze Ltd. Microphone matrix for recording body sounds
US20120259206A1 (en) * 2011-04-08 2012-10-11 Salient Surgical Technologies, Inc. Catheter Systems and Methods of Use
US9149592B2 (en) 2013-03-14 2015-10-06 Patient Centered Medical Incorporated Aspiration catheters, systems, and methods
US10172563B2 (en) 2013-07-03 2019-01-08 General Electric Company Method and system for analyzing noise in an electrophysiology study
US11990239B2 (en) 2019-07-12 2024-05-21 GE Precision Healthcare LLC System and method for analyzing noise in electrophysiology studies

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH019528Y2 (de) * 1985-01-29 1989-03-16
JPH0749902Y2 (ja) * 1987-03-11 1995-11-13 岩崎通信機株式会社 骨伝導受話器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1585104A (en) * 1923-10-13 1926-05-18 William E Montgomery Medical applicator
US1805471A (en) * 1929-08-15 1931-05-19 Lee R England Ear suction cup
US2580628A (en) * 1950-07-12 1952-01-01 Bowen & Company Inc Suction electrode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1585104A (en) * 1923-10-13 1926-05-18 William E Montgomery Medical applicator
US1805471A (en) * 1929-08-15 1931-05-19 Lee R England Ear suction cup
US2580628A (en) * 1950-07-12 1952-01-01 Bowen & Company Inc Suction electrode

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240444A (en) * 1978-07-31 1980-12-23 Snyder Peter E Apparatus for sensing coughs
US4458693A (en) * 1981-03-13 1984-07-10 Medtronic, Inc. Monitoring system
DE3639263A1 (de) * 1985-11-16 1987-06-25 Yakichi Higo Vorrichtung zur ueberpruefung der funktionsfaehigkeit von in lebende koerper eingesetzte endoprothesen
US4784154A (en) * 1986-11-13 1988-11-15 Colin Electronics Co., Ltd. Interference resistant biomedical transducer
US4823808A (en) * 1987-07-06 1989-04-25 Clegg Charles T Method for control of obesity, overweight and eating disorders
US5022402A (en) * 1989-12-04 1991-06-11 Schieberl Daniel L Bladder device for monitoring pulse and respiration rate
US6415033B1 (en) 1999-09-15 2002-07-02 Ilife Systems, Inc. Physiological condition monitors utilizing very low frequency acoustic signals
US6947565B2 (en) 1999-09-15 2005-09-20 Ilife Solutions, Inc. Physiological condition monitors utilizing very low frequency acoustic signals
US20030072458A1 (en) * 1999-09-15 2003-04-17 Ilife Solutions, Inc. Physiological condition monitors utilizing very low frequency acoustic signals
US6878117B1 (en) 1999-09-29 2005-04-12 Zargis Medical Corp. Handheld sensor for acoustic data acquisition
WO2001022884A1 (en) * 1999-09-30 2001-04-05 Siemens Corporate Research, Inc. Handheld sensor for acoustic data acquisition
US6575916B2 (en) 2000-03-24 2003-06-10 Ilife Solutions, Inc. Apparatus and method for detecting very low frequency acoustic signals
US6706002B1 (en) * 2000-03-24 2004-03-16 Ilife Systems, Inc. System and method for remotely monitoring at least one physiological characteristic of a child
US6416483B1 (en) 2000-03-24 2002-07-09 Ilife Systems, Inc. Sensor and method for detecting very low frequency acoustic signals
US20090326418A1 (en) * 2006-08-07 2009-12-31 Deepbreeze Ltd. Microphone matrix for recording body sounds
US20120259206A1 (en) * 2011-04-08 2012-10-11 Salient Surgical Technologies, Inc. Catheter Systems and Methods of Use
US9061117B2 (en) * 2011-04-08 2015-06-23 John R. Roberts Catheter systems and methods of use
US9149592B2 (en) 2013-03-14 2015-10-06 Patient Centered Medical Incorporated Aspiration catheters, systems, and methods
US10172563B2 (en) 2013-07-03 2019-01-08 General Electric Company Method and system for analyzing noise in an electrophysiology study
US11990239B2 (en) 2019-07-12 2024-05-21 GE Precision Healthcare LLC System and method for analyzing noise in electrophysiology studies

Also Published As

Publication number Publication date
DE2310953C3 (de) 1979-02-08
JPS49118293A (de) 1974-11-12
DE2310953A1 (de) 1974-09-12
DE2310953B2 (de) 1978-03-30

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