CN204318788U - A kind of multifunctional intellectual stethoscope - Google Patents

A kind of multifunctional intellectual stethoscope Download PDF

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Publication number
CN204318788U
CN204318788U CN201420665862.1U CN201420665862U CN204318788U CN 204318788 U CN204318788 U CN 204318788U CN 201420665862 U CN201420665862 U CN 201420665862U CN 204318788 U CN204318788 U CN 204318788U
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China
Prior art keywords
stethoscope
multifunctional intellectual
heart rate
circuit board
circuit
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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 - Fee Related
Application number
CN201420665862.1U
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Chinese (zh)
Inventor
陈放怡
汪长泉
文庆华
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Southwest University of Science and Technology
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Southwest University of Science and Technology
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Priority to CN201420665862.1U priority Critical patent/CN204318788U/en
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Publication of CN204318788U publication Critical patent/CN204318788U/en
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Abstract

This utility model relates to a kind of multifunctional intellectual stethoscope, comprises the left sound guide tube being respectively equipped with left earplug, right earplug and pick-up head, right sound guide tube and pickup cartridge, and left sound guide tube, right sound guide tube and pickup cartridge are interconnected one by tee T; Described stethoscope is positioned at tee T place and is provided with heartbeat detection device; Described heartbeat detection device includes housing and is located at circuit board, heart sound acquisition device and the heart rate output device in housing, the pickup end of described heart sound acquisition device is connected with described pickup cartridge, and its outfan is connected with described circuit board, described heart rate output device is connected with described circuit board.On the basis not affecting conventional stethoscope function and use habit, add heart rate and automatically detect report function, doctors and nurses can concentrate one's energy auscultation, and heart rate detection accuracy is high, and uses flexibly, easy to carry, simple and reasonable for structure.

Description

A kind of multifunctional intellectual stethoscope
Technical field
This utility model relates to stethoscope technical field, particularly relates to a kind of multifunctional intellectual stethoscope.
Background technology
Air-conduction type stethoscope is the clinic tool of each doctors and nurses's indispensability.The heart rate of stethoscope patient is used to be the daily work of each doctor nurse.In measuring process, doctors and nurses, by listening measured's hear sounds number beats, sees that the mode of table timing is to obtain measured's heart rate per minute simultaneously; This metering system heart rate measurement accuracy is not high, and needs doctors and nurses to focus one's attention on several heart beating and timing, cannot be absorbed in the cardiac function hearing the rhythm of the heart to diagnose measured, have a strong impact on the checking efficiency of doctor.Also occurred electronic stethoscope in the market, it utilizes microphone pickup cardiechema signals, and calculates heart rate value by analyzing cardiechema signals; But these electronics (intelligence) stethoscope is an electronic installation independent of conventional stethoscope in fact, need independent display device that the heart rate value of measurement is supplied to doctors and nurses.Doctors and nurses cannot use together with conventional stethoscope, use, carry all very inconvenient.
Utility model content
For solving the above-mentioned problems in the prior art, this utility model provides a kind of under the prerequisite not affecting conventional stethoscope function and use habit, there is heart rate and automatically detect report function, thus allow doctors and nurses can concentrate one's energy auscultation to improve the accuracy of heart rate detection, check result is secure, and use flexibly, and easy to carry, multifunctional intellectual stethoscope simple and reasonable for structure.
This utility model is achieved through the following technical solutions:
A kind of multifunctional intellectual stethoscope, comprises the left sound guide tube being respectively equipped with left earplug, right earplug and pick-up head, right sound guide tube and pickup cartridge, and left sound guide tube, right sound guide tube and pickup cartridge are interconnected one by tee T; Described stethoscope is positioned at tee T place and is provided with heartbeat detection device.
Further, described heartbeat detection device includes housing and is located at circuit board, heart sound acquisition device and the heart rate output device in housing, the pickup end of described heart sound acquisition device is connected with described pickup cartridge, and its outfan is connected with described circuit board, described heart rate output device is connected with described circuit board.
Further, described heart rate output device at least comprises the one in sound broadcasting device, wireless transmitter, liquid crystal indicator.
Further, described heart rate output device is sound broadcasting device, described housing includes symmetrically and the fore shell of coupling joint and back cover, its side surface that is bonded with each other is respectively equipped with separate upper plenum and lower cavity, in the cavity that the upper plenum that described circuit board is arranged on fore shell and back cover is formed; In the cavity that the lower cavity that described stethoscopic tee T, heart sound acquisition device and sound broadcasting device are arranged on fore shell and back cover is formed, and be connected with the circuit board conducting in upper plenum.
Further, lower cavity shape and the stethoscopic tee T of described fore shell and back cover are suitable, and the inside side walls of the lower cavity of the lower cavity of fore shell and back cover is respectively equipped with the first installation recess and the second installation recess, described heart sound acquisition device and sound broadcasting device are arranged on the first installation recess and second respectively and install in recess.
Further, described circuit board is integrated with front end pretreatment unit and digital signal processing chip; Described front end pretreatment unit forms primarily of bandwidth-limited circuit, full-wave rectifying circuit and low-pass filter circuit, and the input of full-wave rectifying circuit and outfan are connected with the outfan of bandwidth-limited circuit and the input of low-pass filter circuit respectively, the outfan of described low-pass filter circuit is connected on digital signal processing chip; The pickup end of described heart sound acquisition device is connected with pickup cartridge, and its outfan is connected with the input of bandwidth-limited circuit; Described heart rate output device is connected with digital signal processing chip.
Further, described bandwidth-limited circuit is formed jointly by adopting sallen-key structure second order high pass and a step low-pass; Described low-pass filter circuit (443) is 10Hz low-pass filter circuit.
Further, described digital signal processing chip is STC15F204EA series monolithic, includes multidiameter option switch, comparator, successively comparand register, analog-digital chip, transformation result depositor and AD conversion and control depositor.
Further, described sound broadcasting device comprises speech chip and loudspeaker, and the input of described speech chip is connected with digital signal processing chip and loudspeaker respectively with outfan.
Further, described heart rate output device also includes wireless transmitter, and described wireless transmitter is wireless blue tooth R-T unit, arranges on circuit boards, and is connected with digital signal processing chip.
Compared with prior art, this utility model possesses following advantage:
This utility model passes through technique scheme, both there is the function of conventional stethoscope, have again heart rate detection and report function, in measuring process, doctors and nurses does not need to carry out the heart rate that extra operation (namely without the need to several heart beating and see table) just can obtain measured, auscultation of can concentrating one's energy, both the work of doctors and nurses had been greatly reduced, also improve the accuracy of heart rate detection, check result is secure, and uses flexibly, easy to carry, simple and reasonable for structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 2 is the structural representation of fore shell in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 3 is the structural representation of back cover in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 4 is the structural principle schematic block diagram of heartbeat detection device in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 5 is the structural principle schematic block diagram of front end pretreatment unit in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 6 is the circuit structure diagram of bandwidth-limited circuit in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 7 is the circuit structure diagram of full-wave rectifying circuit in multifunctional intellectual stethoscope embodiment described in the utility model;
Fig. 8 is the circuit structure diagram of low-pass filter circuit in multifunctional intellectual stethoscope embodiment described in the utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
As shown in Fig. 1 to Fig. 8:
This utility model embodiment provides a kind of multifunctional intellectual stethoscope, comprise the left sound guide tube 1, right sound guide tube 2 and the pickup cartridge 3 that are respectively equipped with left earplug, right earplug and pick-up head, and left sound guide tube 1, right sound guide tube 2 and pickup cartridge 3 are interconnected one by tee T.Described stethoscope is positioned at tee T place and is provided with heartbeat detection device 4, described heartbeat detection device 4 includes housing 41 and is located at circuit board 42, heart sound acquisition device 43 and the heart rate output device in housing 41, described circuit board 42 is integrated with front end pretreatment unit 44 and digital signal processing chip 45, and described heart rate output device is sound broadcasting device 46.Wherein, described housing 41 includes symmetrically and the fore shell 411 of coupling joint and back cover 412, its side surface that is bonded with each other is respectively equipped with separate upper plenum 413 and lower cavity 414, in the cavity that the upper plenum 413 that described circuit board 42 is arranged on fore shell 411 and back cover 412 is formed; In the cavity that the lower cavity 414 that described stethoscopic tee T, heart sound acquisition device 43 and sound broadcasting device 46 are arranged on fore shell 411 and back cover 412 is formed, and be connected with circuit board 42 conducting in upper plenum 413; Lower cavity 414 shape and the stethoscopic tee T of described fore shell 411 and back cover 412 are suitable, and the inside side walls of the lower cavity 414 of the lower cavity 414 of fore shell 411 and back cover 412 is respectively equipped with the first installation recess 415 and the second installation recess 416, described heart sound acquisition device 43 and sound broadcasting device 46 are arranged on the first installation recess 415 and second respectively and install in recess 416.
Described front end pretreatment unit 44 forms primarily of bandwidth-limited circuit 441, full-wave rectifying circuit 442 and low-pass filter circuit 443, and the input of full-wave rectifying circuit 442 and outfan are connected with the outfan of bandwidth-limited circuit 441 and the input of low-pass filter circuit 443 respectively, the outfan of described low-pass filter circuit 443 is connected on digital signal processing chip 45; Wherein, described bandwidth-limited circuit 441 is made up of jointly the second order high pass and a step low-pass adopting sallen-key structure; Described low-pass filter circuit 443 is 10Hz low-pass filter circuits.Described heart sound acquisition device 43 is pick ups, and its pickup end is connected with pickup cartridge 3, and outfan is connected with the input of bandwidth-limited circuit 441; Described digital signal processing chip 45 is STC15F204EA series monolithics, includes multidiameter option switch, comparator, successively comparand register, (10) analog-digital chip, transformation result depositor and AD conversion and control depositor (ADC_CONTR); Described sound broadcasting device 46 comprises speech chip 461 and loudspeaker 462, and the input of described speech chip 461 is connected with digital signal processing chip 45 and loudspeaker 462 respectively with outfan, and namely sound broadcasting device 46 is connected with digital signal processing chip 45.
During multifunctional intellectual stethoscope work described in the utility model, first heart sound acquisition device 43 gathers the cardiechema signals transmitted in pickup cartridge 3, and flow to front end pretreatment unit 44 and carry out pretreatment and (namely first carry out filtering, amplification through bandwidth-limited circuit 441, obtain comparatively clean, amplitude comparatively significantly cardiechema signals, then full-wave rectifying circuit 442 carries out all wave rectification to this cardiechema signals, obtain monolateral signal, last low-pass filter circuit 443 carries out low-pass filtering to this monolateral signal, obtains the envelope of cardiechema signals.), then digital signal processing chip 45 counts heart rate value according to the envelope of cardiechema signals, finally issues sound broadcasting device 46 and carries out voice broadcast.
Like this, stethoscope described in the utility model had both had the function of conventional stethoscope, have again heart rate detection and report function, in measuring process, doctors and nurses does not need to carry out the heart rate that extra operation (namely without the need to several heart beating and see table) just can obtain measured, auscultation of can concentrating one's energy, both the work of doctors and nurses had been greatly reduced, also improve the accuracy of heart rate detection, check result is secure, and uses flexibly, easy to carry, simple and reasonable for structure.
As this utility model one preferred version, described heart rate output device can also include wireless transmitter, and described wireless transmitter can be wireless blue tooth R-T unit 47, is arranged on circuit board 42, and is connected with digital signal processing chip 45.Like this, this stethoscope is connected with outside bluetooth equipment (as having the mobile phone of Bluetooth function) by wireless blue tooth R-T unit 7, and measurement result to be sent on outside bluetooth equipment by wireless blue tooth R-T unit 7 and to carry out showing, storing.
Certainly, described heart rate output device also at least can comprise the one in sound broadcasting device 46, wireless transmitter, liquid crystal indicator.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.

Claims (10)

1. a multifunctional intellectual stethoscope, it is characterized in that: described stethoscope comprises and is respectively equipped with the left sound guide tube (1) of left earplug, right earplug and pick-up head, right sound guide tube (2) and pickup cartridge (3), and left sound guide tube (1), right sound guide tube (2) and pickup cartridge (3) are interconnected one by tee T; Described stethoscope is positioned at tee T place and is provided with heartbeat detection device (4).
2. multifunctional intellectual stethoscope according to claim 1, it is characterized in that: described heartbeat detection device (4) includes housing (41) and is located at circuit board (42), heart sound acquisition device (43) and the heart rate output device in housing (41), the pickup end of described heart sound acquisition device (43) is connected with described pickup cartridge (3), and its outfan is connected with described circuit board (42), described heart rate output device is connected with described circuit board (42).
3. multifunctional intellectual stethoscope according to claim 2, is characterized in that: described heart rate output device at least comprises the one in sound broadcasting device (46), wireless transmitter, liquid crystal indicator.
4. multifunctional intellectual stethoscope according to claim 2, it is characterized in that: described heart rate output device is sound broadcasting device (46), described housing (41) includes symmetrically and the fore shell (411) of coupling joint and back cover (412), its side surface that is bonded with each other is respectively equipped with separate upper plenum (413) and lower cavity (414), in the cavity that the upper plenum (413) that described circuit board (42) is arranged on fore shell (411) and back cover (412) is formed; In the cavity that the lower cavity (414) that described stethoscopic tee T, heart sound acquisition device (43) and sound broadcasting device (46) are arranged on fore shell (411) and back cover (412) is formed, and be connected with circuit board (42) conducting in upper plenum (413).
5. multifunctional intellectual stethoscope according to claim 4, it is characterized in that: lower cavity (414) shape of described fore shell (411) and back cover (412) and stethoscopic tee T suitable, and the inside side walls of the lower cavity (414) of the lower cavity (414) of fore shell (411) and back cover (412) is respectively equipped with the first installation recess (415) and the second installation recess (416), described heart sound acquisition device (43) and sound broadcasting device (46) are arranged on the first installation recess (415) and second respectively and install in recess (416).
6. the multifunctional intellectual stethoscope according to Claims 2 or 3 or 4 or 5, is characterized in that: described circuit board (42) is integrated with front end pretreatment unit (44) and digital signal processing chip (45); Described front end pretreatment unit (44) forms primarily of bandwidth-limited circuit (441), full-wave rectifying circuit (442) and low-pass filter circuit (443), and the input of full-wave rectifying circuit (442) and outfan are connected with the outfan of bandwidth-limited circuit (441) and the input of low-pass filter circuit (443) respectively, the outfan of described low-pass filter circuit (443) is connected on digital signal processing chip (45); The pickup end of described heart sound acquisition device (43) is connected with pickup cartridge (3), and its outfan is connected with the input of bandwidth-limited circuit (441); Described heart rate output device is connected with digital signal processing chip (45).
7. multifunctional intellectual stethoscope according to claim 6, is characterized in that: described bandwidth-limited circuit (441) is made up of jointly the second order high pass and a step low-pass adopting sallen-key structure; Described low-pass filter circuit (443) is 10Hz low-pass filter circuit.
8. multifunctional intellectual stethoscope according to claim 7, it is characterized in that: described digital signal processing chip (45) is STC15F204EA series monolithic, include multidiameter option switch, comparator, successively comparand register, analog-digital chip, transformation result depositor and AD conversion and control depositor.
9. the multifunctional intellectual stethoscope according to claim 3 or 4 or 5 or 7 or 8, it is characterized in that: described sound broadcasting device (46) comprises speech chip (461) and loudspeaker (462), the input of described speech chip (461) is connected with digital signal processing chip (45) and loudspeaker (462) respectively with outfan.
10. multifunctional intellectual stethoscope according to claim 4, it is characterized in that: described rate output device also includes wireless transmitter, described wireless transmitter is wireless blue tooth R-T unit (47), be arranged on circuit board (42), and be connected with digital signal processing chip (45).
CN201420665862.1U 2014-11-10 2014-11-10 A kind of multifunctional intellectual stethoscope Expired - Fee Related CN204318788U (en)

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Application Number Priority Date Filing Date Title
CN201420665862.1U CN204318788U (en) 2014-11-10 2014-11-10 A kind of multifunctional intellectual stethoscope

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662455A (en) * 2016-01-14 2016-06-15 南京邮电大学 Hand-held type voice-broadcast heart sound detection device
CN107148122A (en) * 2017-07-10 2017-09-08 东莞市三恩照明实业有限公司 A kind of APP intelligent lamps
CN108514427A (en) * 2018-05-07 2018-09-11 日照市中医医院 A kind of Medical pediatric stethoscope
CN111110270A (en) * 2019-12-03 2020-05-08 哈尔滨医科大学 Medical teaching multi-terminal synchronous Bluetooth stethoscope based on Android and control system thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662455A (en) * 2016-01-14 2016-06-15 南京邮电大学 Hand-held type voice-broadcast heart sound detection device
CN105662455B (en) * 2016-01-14 2018-10-02 南京邮电大学 A kind of hand-held voice broadcast heart sound detection device
CN107148122A (en) * 2017-07-10 2017-09-08 东莞市三恩照明实业有限公司 A kind of APP intelligent lamps
CN108514427A (en) * 2018-05-07 2018-09-11 日照市中医医院 A kind of Medical pediatric stethoscope
CN111110270A (en) * 2019-12-03 2020-05-08 哈尔滨医科大学 Medical teaching multi-terminal synchronous Bluetooth stethoscope based on Android and control system thereof

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20150513

Termination date: 20201110