CN211187262U

CN211187262U - Pulsating tinnitus detector

Info

Publication number: CN211187262U
Application number: CN201921730246.9U
Authority: CN
Inventors: 丁秀勇; 李悦; 白云; 苏金霏; 任沁展; 王振霖
Original assignee: Individual
Current assignee: Xuanwu Hospital
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-08-07
Anticipated expiration: 2029-10-15

Abstract

The utility model provides a pulsive tinnitus detector, including microphone, pulse sensor, main control circuit board and calculation and storage device. The main control circuit board is provided with a microphone interface, a pulse sensor interface and a USB interface. This application can gather patient's tinnitus sound signal and pulse signal through microphone and pulse sensor synchronization, tinnitus sound signal and pulse signal that will gather carry out the amplification processing through microphone drive and signal amplification unit and pulse signal amplification unit respectively, then convert it into the digital signal that can be calculated and storage device storage and handle through the analog-to-digital conversion unit, in order to carry out synchronous analysis with tinnitus sound signal and pulse signal in the follow-up analytic process, in order to judge tinnitus type and etiology.

Description

Pulsating tinnitus detector

Technical Field

The application relates to a medical instrument, in particular to a medical instrument for tinnitus detection, and particularly relates to a pulsive tinnitus detector.

Background

Pulsatile Tinnitus (PT) is an abnormal sound generated by head and neck organs or blood vessels and transmitted to the inner ear through bone structures or blood flow to cause a patient to feel Pulsatile intra-aural abnormal sounds. Pulsatile tinnitus is the most common objective tinnitus, mostly caused by arteriovenous problems in the head and neck of the patient.

The existing pulsating tinnitus clinical diagnosis and treatment has obvious defects. First, in theory, PT is objective tinnitus, which can be heard by both the patient and the examiner, but in the actual clinical practice, the examiner uses a stethoscope to auscultate the patient's external auditory canal or papilla, and since tinnitus doctors of most patients with low sensitivity cannot hear the tinnitus at all, it is impossible to accurately judge whether the tinnitus of the patient is objective. Secondly, the PT causes are complex and can be classified into pulsatile tinnitus of arterial origin, venous origin and non-vascular origin according to the causes, the PT causes of venous origin have benign intracranial hypertension, sigmoid sinus bone wall defect or diverticulum, jugular vein spheroid tumor and the like, and the PT causes of non-vascular origin have palatospasm, eustachian tube dysfunction and the like. Different causes of disease, the examination and treatment methods which need to be selected are completely different, but the prior detection means can not effectively collect the tinnitus sound, the causes of disease can not be judged, the treatment only by the experience of doctors lacks the purpose, the waste of medical resources is caused, and the burden of patients is increased. Thirdly, the current etiology examination of PT is mainly performed by means of imaging, but the theoretical basis of image diagnosis is to infer the cause of PT according to the abnormal anatomical result of the image examination, whether the abnormal result and PT have a definite causal relationship, which cannot be judged, the image examination has obvious anatomical abnormality but no PT phenomenon is a common clinical phenomenon, and the diagnosis and even the treatment are easily misled by simply relying on the imaging examination.

At present, the common PT detection means for hearing tinnitus sound through a stethoscope has the defects that the probability that an examining doctor can exactly hear tinnitus sound is originally not large due to weak sound, the interference problem of other sounds cannot be eliminated, the PT etiology needs to be artificially judged according to experience, and the objectivity is lacked. The sound signals obtained by auscultation cannot be completely recorded for analysis.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a pulsated tinnitus detector to reduce or avoid the aforementioned problem.

In order to solve the technical problem, the utility model provides a pulsive tinnitus detector for synchronously acquiring tinnitus sound signals and pulse signals as data of subsequent analysis pulsive tinnitus, the pulsive tinnitus detector comprises a microphone, a pulse sensor, a main control circuit board and a calculating and storing device, wherein the main control circuit board is provided with a microphone interface for connecting the microphone inserted into an external auditory canal, a pulse signal interface for connecting the pulse sensor and a USB interface for connecting the calculating and storing device and supplying power to the main control circuit board; the microphone interface is connected with a microphone driving and signal amplifying unit on the main control circuit board; the pulse signal interface is connected with a pulse signal amplifying unit on the main control circuit board; the USB interface is connected with a digital signal output end of an analog-to-digital conversion unit on the main control circuit board; the microphone driving and signal amplifying unit and the pulse signal amplifying unit are respectively connected with the analog signal input end of the analog-to-digital conversion unit.

Preferably, the main control circuit board is provided with two microphone interfaces respectively connected with microphones inserted into the left and right external auditory canals.

This application can gather patient's tinnitus sound signal and pulse signal through microphone and pulse sensor synchronization, tinnitus sound signal and pulse signal that will gather carry out the amplification processing through microphone drive and signal amplification unit and pulse signal amplification unit respectively, then convert it into the digital signal that can be calculated and storage device storage and handle through the analog-to-digital conversion unit, in order to carry out synchronous analysis with tinnitus sound signal and pulse signal in the follow-up analytic process, in order to judge tinnitus type and etiology.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein the content of the first and second substances,

fig. 1 is a schematic view showing a pulsating tinnitus detector according to an embodiment of the present invention;

FIG. 2 is a schematic view of another view of the pulsatile tinnitus detector of FIG. 1;

FIG. 3 is a schematic diagram showing an electrical connection structure of a main control circuit board in the pulsating tinnitus detector according to another embodiment of the present application;

fig. 4 shows a waveform schematic of a set of tinnitus sound signal and pulse signal acquired simultaneously by the pulsatile tinnitus detector of the present application.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

Referring to fig. 1-2, there are shown schematic diagrams of different views of a pulsating tinnitus testing apparatus according to an embodiment of the present invention, wherein a medical testing apparatus dedicated to pulsating tinnitus testing is shown. It will be appreciated by those skilled in the art that since pulsatile tinnitus is an objective tinnitus, the inside of the ear of the patient produces pulsatile abnormal sounds which are objectively present and thus can be detected by the detection apparatus of the present application. Subjective tinnitus, which is subjectively perceived by the patient and does not actually make a sound, cannot be detected by the detection instrument of the present application.

Fig. 3 is a schematic diagram showing an electrical connection structure of a main control circuit board in a pulsatile tinnitus detector according to another embodiment of the present application, as shown in fig. 1-3, which can be used for synchronously acquiring a tinnitus sound signal and a pulse signal as data for subsequently analyzing pulsatile tinnitus, and includes a microphone 10 (see fig. 3), a pulse sensor 20 (see fig. 3), a main control circuit board 1 and a calculation and storage device 30 (see fig. 3). The main control circuit board 1 is provided with a microphone interface 11 for connecting a microphone 10 inserted into an external auditory canal, a pulse signal interface 12 for connecting a pulse sensor 20 and a USB interface 13 for connecting a calculation and storage device 30 and supplying power to the main control circuit board 1; the microphone interface 11 is connected with a microphone driving and signal amplifying unit 111 on the main control circuit board 1; the pulse signal interface 12 is connected with a pulse signal amplifying unit 121 on the main control circuit board 1; the USB interface 13 is connected with the digital signal output end of the analog-to-digital conversion unit 131 on the main control circuit board 1; the microphone driving and signal amplifying unit 111 and the pulse signal amplifying unit 121 are respectively connected to the analog signal input terminals of the analog-to-digital converting unit 131.

In one embodiment, the microphone 10 may be any small electret microphone suitable for insertion into the external auditory canal of a patient, in order to avoid damage to the external auditory canal and to eliminate interference of external sounds, an earbud sleeve may be installed outside the microphone 10. the microphone driving and signal amplifying unit 111 may be an existing electret microphone driving and amplifying module based on a MAX9814 chip, and a person skilled in the art may search and purchase on an existing e-commerce platform, such as Taobao, the pulse sensor 20 may be any existing pulse instrument, pulse sensor or oximeter with a pulse signal output function, such as a PWS-20A type photoelectric pulse sensor sold by the existing e-commerce platform, the pulse signal amplifying unit 121 may be an existing amplifying circuit module based on an existing L M358 operational amplifier, the analog-to-digital conversion unit 131 may be an existing universal USB data acquisition module, such as a UA type data acquisition module based on Beijing optimal acquisition and control products 326, which may be implemented on an existing UA type data acquisition module based on an AD 7684 chip, and an existing embedded type computer processing unit 357684, such as a computer module based on a USB chip.

It should be noted that the microphone 10 and the pulse sensor 20 of the present application are commercially available products, and the implementation of the sound signal and the pulse signal acquisition is prior art and is not what is claimed in the present application. Those skilled in the art can set an input interface corresponding to the specifications of the output interfaces of the microphone 10 and the pulse sensor 20 according to the specifications of the output interfaces of the microphone and the pulse sensor, which are commercially available. This application passes through microphone 10 and pulse sensor 20, can gather tinnitus sound signal and pulse signal in step, tinnitus sound signal and pulse signal that will gather carry out the amplification processing through microphone drive and signal amplification unit 111 and pulse signal amplification unit 121 respectively, then convert it into the digital signal that can be calculated and storage device 30 storage and processing through analog-to-digital conversion unit 131, so that follow-up analysis in-process carries out the synchronism analysis with tinnitus sound signal and pulse signal, be used for judging tinnitus type and etiology.

Fig. 4 is a schematic diagram showing waveforms of a set of tinnitus sound signal and pulse signal synchronously acquired by the pulsatile tinnitus detector of the present application, and as can be seen from fig. 4, the tinnitus sound signal of a certain ear is positioned on the upper side and the synchronous waveform of the pulse signal is positioned on the lower side, and by analyzing the internal correlation of these waveform data, a mathematical model which can be used for judging the type and cause of tinnitus can be established. Of course, the present application focuses on the detection problem of pulsatile tinnitus, and solves the problem that the prior art can not detect and store tinnitus signals and pulse signals digitally and synchronously, and belongs to the tinnitus signal data acquisition part, and as for the problem of analysis, judgment and even treatment of the acquired tinnitus signals and pulse signals, the present application does not belong to the technical problem which is required to be solved by the present application at the present stage, and the present application does not belong to the scope which is required to be protected by the present application.

In the illustrated embodiment, two microphone ports 11 to which microphones inserted into left and right external acoustic meatus, respectively, are connected may be provided on the main control circuit board 1. That is, two microphone interfaces 11 insert two microphones respectively, and these two microphones insert respectively in left external auditory canal and the right external auditory canal to can gather the tinnitus sound signal in the left and right sides duct in step, be convenient for compare the sound that two ears were collected, in order to further guarantee diagnostic reliability.

In another embodiment, the pulsating tinnitus detector comprises a frame consisting of an upper base plate 2, a lower base plate 3 and four supporting posts 4 connecting the upper base plate 2 and the lower base plate 3, wherein the main control circuit board 1 is suspended and supported between the upper base plate 2 and the lower base plate 3 through the four supporting posts 4. That is, in the illustrated embodiment of the present application, the main control circuit board 1 is suspended and supported, which is beneficial to heat dissipation of the circuit. In addition, for stable structural placement, the bottom of the lower plate 3 is provided with four supporting foot pads 5 in the illustrated embodiment.

To sum up, this application can gather patient's tinnitus sound signal and pulse signal in step through microphone and pulse sensor, and the tinnitus sound signal and the pulse signal that will gather are passed through the microphone drive respectively and are enlargied the processing with signal amplification unit and pulse signal amplification unit, then convert it into through analog-to-digital conversion unit and can be calculated and the digital signal of storage device collection storage to in the follow-up analytic process carries out synchronous analysis with tinnitus sound signal and pulse signal, be used for judging tinnitus type and etiology.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only illustrative of the present invention and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of this application shall fall within the scope of this application.

Claims

1. A pulsive tinnitus detector is used for synchronously acquiring tinnitus sound signals and pulse signals as data of follow-up analysis pulsive tinnitus, and is characterized in that: the pulsive tinnitus detector comprises a microphone (10), a pulse sensor (20), a main control circuit board (1) and a calculating and storing device (30), wherein a microphone interface (11) used for being connected with the microphone (10) inserted into an external auditory canal, a pulse signal interface (12) used for being connected with the pulse sensor (20) and a USB interface (13) used for being connected with the calculating and storing device (30) and supplying power to the main control circuit board (1) are arranged on the main control circuit board (1); the microphone interface (11) is connected with a microphone driving and signal amplifying unit (111) on the main control circuit board (1); the pulse signal interface (12) is connected with a pulse signal amplification unit (121) on the main control circuit board (1); the USB interface (13) is connected with a digital signal output end of an analog-to-digital conversion unit (131) on the main control circuit board (1); the microphone driving and signal amplifying unit (111) and the pulse signal amplifying unit (121) are respectively connected with the analog signal input end of the analog-to-digital conversion unit (131).

2. The pulsating tinnitus detector as claimed in claim 1 wherein said main control circuit board (1) is provided with two microphone ports (11) for connecting microphones inserted into the left and right external auditory canals, respectively.