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WO2005091249A1 - Enregistreur audio - Google Patents

Enregistreur audio Download PDF

Info

Publication number
WO2005091249A1
WO2005091249A1 PCT/US2005/008503 US2005008503W WO2005091249A1 WO 2005091249 A1 WO2005091249 A1 WO 2005091249A1 US 2005008503 W US2005008503 W US 2005008503W WO 2005091249 A1 WO2005091249 A1 WO 2005091249A1
Authority
WO
WIPO (PCT)
Prior art keywords
audio
recording
housing
recording device
external
Prior art date
Application number
PCT/US2005/008503
Other languages
English (en)
Inventor
Ken Jarrell
Dave Jones
Dennis Newman
Original Assignee
Voxas Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voxas Llc filed Critical Voxas Llc
Publication of WO2005091249A1 publication Critical patent/WO2005091249A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/02—Measuring pulse or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0866—Clinical applications involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby

Definitions

  • This invention generally relates to an audio recording device and, more particularly, to a solid state audio recording device for recording a fetal heartbeat from a doppler device.
  • Ultrasonic dopplers have been in use since the late 1950's and early 1960's to detect the fetal heartbeats in early stages of pregnancy, long before use of an ordinary stethoscope is practical for that purpose.
  • Dopplers use high frequency sound waves that reflect off of the fetal heart and then are received, processed and amplified by the doppler device for evaluating the detected heartbeat.
  • Doppler ultrasound devices are regulated by the FDA as a medical device, and until recently, these devices were available to expectant women only in doctors' offices, such as during routine obstetrical visits. Years of studies have shown no adverse biological or health effects from the use of ultrasonic dopplers on the fetus.
  • dopplers there are a number of dopplers available for use in the detection of fetal heartbeats. At times, expectant parents may desire to record the fetal heartbeat for any number of reasons, including, for example, review by a doctor or nurse for diagnostic purposes, and keepsake purposes. To achieve such recordings, parents have employed tape recorders or the like in the vicinity of the doppler. Often, the audio quality of the recorded heartbeat is poor due to ambient noise, to limitations of the recording device, etc. A recent addition to some dopplers is an internal recorder for facilitating the recording and saving of the doppler output. However, to permanently save and retain a recorded heartbeat, the device user must disadvantageously resort to either purchasing the doppler device, which may cost on the order of several hundred dollars, or transferring the recording to a tape recorder or like device, which may result in poor audio quality.
  • Doppler devices with or without built-in recording functionality have not been built to include an output terminal for transferring the recorded material because electronic devices that may be connected to such an output terminal may not be compatible with the doppler. Plus, such electrical devices are not designed or approved for use as part of a medical system, such as hand-held dopplers. As such, virtually no doppler provider recommends connecting a doppler directly into a powered electronic device since serious damage may occur to the doppler and/or the electronic device due to potential electrical faults, interference, etc.
  • the only terminal that may be included in dopplers is a head phone terminal.
  • an audio recording device is needed that is capable of interfacing with a doppler device for recording a fetal heartbeat.
  • the device advantageously, is compact, portable, easy to use, and relatively inexpensive.
  • a recording device for recording fetal heartbeat audio from an external doppler device and for transferring recorded audio from the recording device to an external electrical device
  • a recording device includes a housing, an electrical circuit supported by the housing and operable to record audio, an audio input terminal electrically connected to the electrical circuit and coupled to a medical device to receive audio from the medical device, and a 1 microphone electrically connected to the electrical circuit for recording audio on its own not produced by the medical device, wherein the electrical circuit is operable to record audio produced by a medical device and to record audio not produced by the medical device.
  • a recording device for recording fetal heartbeat audio from an external doppler device and for transferring recorded audio from the recording device to an external electrical device
  • Fig. 1 is a top perspective view of an audio recording device.
  • Fig. 2 is a bottom perspective view of the audio recording device shown in Fig. 1.
  • FIG. 3 is a top view of the audio recording device shown in Fig. 1
  • Fig. 4 is a bottom view of the audio recording device shown in Fig. 1.
  • Fig. 5 is a front view of the audio recording device shown in Fig. 1.
  • Fig. 6 is a rear view of the audio recording device shown in Fig. 1.
  • Fig. 7 is a right side view of the audio recording device shown in Fig. 1.
  • Fig. 8 is a left view of the audio recording device shown in Fig. 1.
  • Fig. 9 is a partially broken bottom view of the audio recording device shown in Fig. 1.
  • Fig. 10 is a partially broken front view of the audio recording device shown in Fig. 1.
  • Fig. 11 is a partially broken side view of the audio recording device shown in Fig. 1.
  • Fig. 12 is an electrical schematic for the audio recording device shown in Fig. 1.
  • Fig. 13 is a perspective view of the recording device shown in Fig. 1 coupled with a doppler device and a computer.
  • the device 20 includes a housing 24 that is compactly shaped and includes curved top, bottom, front, back, and side surfaces. Exemplary dimensions of the device 20 may be approximately 85mm long, 65 mm wide and 30 mm thick.
  • the housing 24 is made of multiple assembled pieces that, when assembled, define an internal cavity 28. Alternatively, the housing 24 can be made of a single, integral component.
  • the housing 24 may be formed, molded or otherwise made of any suitable material such as plastic, resin, or the like.
  • the exemplary illustrated construction of the housing 24 includes a front housing portion 32, a rear housing portion 36 and a cover 40.
  • the housing portions 32, 36 and the cover 40 are preferably injection molded of ABS or polycarbonate materials.
  • the housing 24 may include a label area 44 for displaying a label, logo, or other indicia.
  • the cover 40 when affixed to the housing 24, covers and protects the label area 44. Additionally, the cover 40, when removed from the housing 24, provides access to the label area 44 to allow replacement of a label.
  • the cover is removably affixed to the housing 24 by a fastener 48 such as the illustrated screw on the bottom of the device 20.
  • the device 20 is powered by a battery 52 supportable within a battery receptacle 56 defined in the housing 24.
  • the battery 52 is protected and secured within the battery receptacle 56 when the cover 40 is affixed to the housing 24 and is accessible by removing the cover 40.
  • the housing 24 includes an opening 60 for providing access to an internal microphone 64, and a plurality of openings comprising a grill 68 for providing access to an internal speaker 72.
  • the microphone 64 enables the device 20 to record audio signals proximate the device 20 on its own. An audio signal recorded by the device 20 may be played back by the device 20. The audio signal emanates from the internal speaker 72, through the speaker grill 68, and into the ambient environment.
  • the housing 24 includes other openings for receiving an indicator light 76(e.g., an LED), actuators , a master on-off switch (not shown), among other things.
  • the indicator light 76 is operable to indicate when various operations of the device 20 are occurring.
  • an actuator is coupled to each side surface of the device 20.
  • the actuators are shown as a play button 80 and a record button 84 and are operably linked to the device's internal electronics to operate the device 20 as described hereafter in further detail.
  • the device 20 is sized and shaped to fit within the palm of the hand such that the buttons 80, 84 are actuatable by, for example, the thumb and forefinger of the hand.
  • buttons 80, 84 are retained by the housing 24 and further are movably coupled with the housing 24 such that the buttons 80, 84 are inwardly depressible and outwardly biased by a biasing member (not shown), such as a spring or other suitable elastic means.
  • a biasing member such as a spring or other suitable elastic means.
  • the device 20 includes an audio input terminal 88 for coupling the device 20 to an external audio source, such as, for example a doppler device, and an audio output terminal 92 for coupling the device 20 to an electrical device or audio storage device, such as, for example a computer.
  • the audio terminals 88, 92 are 3.5mm audio (i.e., mini) jacks to facilitate the compact design of the device 20, however, other terminals known in the art may be suitably employed, such as sub-mini, RCA, BNC, or others.
  • the audio terminals 88, 92 accept corresponding connectors (i.e., 3.5mm male) that are connected to a cable, the opposing end of the cable is terminated in another connector, which is sized and shaped to engage with an external device.
  • the internal components of the device 20 are shown and are disposed within the internal cavity 28 of the housing 24.
  • the internal components include a power source, such as a battery 52, and an electrical circuit 96 for audio recording and playback.
  • An electrical schematic representing the electronics of the device 20 is illustrated in Fig. 12.
  • the electrical circuit may include a circuit board 100 such as printed circuit board (PCB) having one or more integrated circuit (IC) chips.
  • the IC chips may include one or more of the following or a combination thereof: a microprocessor, an audio recording chip, a nonvolatile memory chip, an audio amplifier chip, and a voltage regulator.
  • Exemplary IC chips may include Winbond's ChipCorder ISD series chips.
  • One exemplary microprocessor is the EM55002 microprocessor available from Microchip Technology, Inc.
  • One exemplary audio amplifier chip is the LM386 available from National Semiconductor Corp.
  • the audio recording chip may include the nonvolatile memory for storing recorded audio signals.
  • a single chip or chip on board (COB) design may be suitably employed.
  • the nonvolatile memory is capable of storing at least 20 seconds of audio at a suitable sampling rate to provide for high quality audio playback.
  • a contact-type microswitch 104 is coupled to each of the play and record buttons 80, 84.
  • the record and play microswitches 104 are linked with the electrical circuit 96 to initiate audio recording and playback, respectively.
  • a button is depressed, the corresponding microswitch 104 is actuated, thereby sending a signal to the electrical circuit 96.
  • a microphone 64 and a speaker 72 are linked with the electrical circuit 96 to effect recording and playback.
  • the speaker 72 may be any suitable speaker component. In the illustrated construction, the speaker is eight ohms and approximately 27mm in diameter.
  • the battery 52 is disposed within the housing 24 and coupled to the electrical circuit 96.
  • the battery 52 may be either rechargeable or disposable. In some constructions, the battery 52 will preferably last at least two years when the device 20 is turned off, and provides continuous recording and/or playback of up to three hours.
  • the battery 52 may be wired in series to a master on-off switch (not shown), such as a two-position sliding switch that can be switched off to prevent unwanted operation of the device 20 or to conserve power. Operational power may also be supplied by an AC to DC adapter that is pluggable into the device 20 and a power outlet.
  • the device 20 includes an audio input terminal 88 and an audio output terminal 92. The audio terminals 88, 92 are linked to the electrical circuit 96 in particular to effect the device recording and playback functionality.
  • the speaker 72 is activated and the internal microphone 64 is deactivated.
  • a user must simultaneously actuate both the play and record buttons 80, 84 for a predetermined period of time (e.g., two seconds) to activate audio recording from the external device.
  • a predetermined period of time e.g., two seconds
  • the audio signal received from the external device is recorded and played (at a slight delay) such that the device user may inspect what is being recorded.
  • the indicator light 76 again illuminates to indicate that recording has begun.
  • Playback of an audio signal from the speaker 72 occurs whether or not a connector is coupled with one or both of the terminals 88, 92.
  • the speaker 72 is activated whenever the play, record, or both buttons are pressed.
  • a doppler device may include a speaker for producing audio.
  • the speaker of the doppler device may be disabled when the doppler device is coupled to the audio recording device 20 so that audio will only be produced by the audio recording device 20. Disablement of the doppler speaker will eliminate any possibility of interference between the speaker of the doppler and the speaker 72 of the audio recording device 20.
  • operation of the device 20 is stopped. Once the device 20 is stopped, it may automatically shut down or enter a "sleep" mode for power conservation. Alternatively, both the record and the play buttons 80, 84 must be depressed continuously in order to record audio. Releasing one or both of the buttons 80, 84 will stop recording.
  • the indicator light 76 may be illuminated in different manners depending on the operation of the device 20. For example, the indicator light 76 may be illuminated continuously in the playback mode, whereas in record mode, the indicator light 76 may blink, strobe, or light otherwise. Additionally, the indicator light 76 may provide the user with a low battery indication.
  • the recording device 20 is operative to record a fetal heartbeat from an ultrasound medical device, such as a doppler device. After recording the fetal heartbeat, the device 20 may output the saved recording to an external electronic device such as a personal computer, PDA, or the like for storage and/or manipulation.
  • an ultrasound medical device such as a doppler device.
  • the device 20 may output the saved recording to an external electronic device such as a personal computer, PDA, or the like for storage and/or manipulation.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Cardiology (AREA)
  • Gynecology & Obstetrics (AREA)
  • Pregnancy & Childbirth (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

La présente invention concerne un enregistreur destiné à l'enregistrement du son des battements de coeur du foetus depuis un dispositif Doppler externe et au transfert du son enregistré de l'enregistreur à un dispositif électrique externe. L'enregistreur peut se coupler à un appareil Doppler séparé, qui produit le son des battements de coeur du foetus, et à un ordinateur. L'enregistreur peut enregistrer le son produit par le dispositif Doppler et le transférer à l'ordinateur. En outre, l'enregistreur peut enregistrer du son produit par un appareil médical séparée, et du son non produit par l'appareil médical.
PCT/US2005/008503 2004-03-15 2005-03-15 Enregistreur audio WO2005091249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55316004P 2004-03-15 2004-03-15
US60/553,160 2004-03-15

Publications (1)

Publication Number Publication Date
WO2005091249A1 true WO2005091249A1 (fr) 2005-09-29

Family

ID=34993927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/008503 WO2005091249A1 (fr) 2004-03-15 2005-03-15 Enregistreur audio

Country Status (1)

Country Link
WO (1) WO2005091249A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7296733B2 (en) * 2005-09-02 2007-11-20 Voikex, Inc. Device and methods for storing and tracking pregnancy progress
JP2020081833A (ja) * 2019-01-31 2020-06-04 メロディ・インターナショナル株式会社 超音波検査装置
US20210212664A1 (en) * 2018-10-11 2021-07-15 Fujifilm Corporation Ultrasound probe
CN113662582A (zh) * 2021-08-23 2021-11-19 深圳华声医疗技术股份有限公司 多普勒超声诊断仪和音频播放控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413629A (en) * 1982-04-22 1983-11-08 Cryomedics, Inc. Portable ultrasonic Doppler System
US5088497A (en) * 1987-02-03 1992-02-18 Terumo Kabushiki Kaisha Fetus monitoring apparatus
WO1996032888A1 (fr) * 1995-04-18 1996-10-24 Imex Medical Systems, Inc. Dispositif de diagnostic medical a effet doppler portatif, alimente par batterie et equipe d'une sonde autonome

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413629A (en) * 1982-04-22 1983-11-08 Cryomedics, Inc. Portable ultrasonic Doppler System
US5088497A (en) * 1987-02-03 1992-02-18 Terumo Kabushiki Kaisha Fetus monitoring apparatus
WO1996032888A1 (fr) * 1995-04-18 1996-10-24 Imex Medical Systems, Inc. Dispositif de diagnostic medical a effet doppler portatif, alimente par batterie et equipe d'une sonde autonome

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7296733B2 (en) * 2005-09-02 2007-11-20 Voikex, Inc. Device and methods for storing and tracking pregnancy progress
US20210212664A1 (en) * 2018-10-11 2021-07-15 Fujifilm Corporation Ultrasound probe
EP3865071A4 (fr) * 2018-10-11 2021-12-22 FUJIFILM Corporation Sonde ultrasonore
US11717264B2 (en) 2018-10-11 2023-08-08 Fujifilm Corporation Ultrasound probe
JP2020081833A (ja) * 2019-01-31 2020-06-04 メロディ・インターナショナル株式会社 超音波検査装置
CN113662582A (zh) * 2021-08-23 2021-11-19 深圳华声医疗技术股份有限公司 多普勒超声诊断仪和音频播放控制方法
CN113662582B (zh) * 2021-08-23 2024-02-23 深圳华声医疗技术股份有限公司 多普勒超声诊断仪和音频播放控制方法

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