Constant-temperature testing device for artificial cochlea implant

Abstract

The utility model relates to the technical field of artificial cochlea testing equipment, in particular to a constant-temperature testing device for an artificial cochlea implant, which comprises a container shell, the interior of the container shell is divided into a constant-temperature bath and a stimulation bath by a supporting part, and a limiting support table for supporting the implant is further arranged in the constant-temperature bath; wherein a temperature control assembly is installed in the thermostatic bath, a display control unit and an input and output unit are further installed on the outer side of the container shell, and the constant temperature detection device solves the problem that measurement needs to be conducted in a large-scale constant temperature box or an implant can only be measured in the room temperature state in the previous period. The temperature can be adjusted to be close to the human body temperature environment to the maximum extent, the testing accuracy is provided, the impedance of the implant stimulating electrode part can be adjusted, the human body nerve reaction signal simulation generation function can be simulated, and great convenience is provided for implant finished product testing.

Description

TECHNICAL FIELD

[0001] The utility model relates to cochlear implant test equipment technical field especially relates to a constant temperature testing arrangement of cochlear implant. BACKGROUND

[0002] Cochlear implant is a kind of electronic device, cochlear implant system includes cochlear implant and cochlear implant sound processor, and its working process is: 1, by the microphone on the sound processor to collect sound;2, sound processor encodes the sound into special form digital information;3, information is transmitted to the coil and is transmitted to the implant through the skin;4, implant decodes information, and according to the command of information, sends electric pulse to stimulate the stimulating electrode in cochlea;5, stimulating electrode stimulates the nerve fiber in cochlea;6, auditory nerve receives electric signal, and they are transmitted to the auditory center of brain, and brain identifies these electric signals as sound.

[0003] In the development and production process of cochlear implant, it is crucial to ensure that the function and performance of implant are stable and reliable, and cochlear implant is usually divided into in-vivo implant part and extra-corporeal speech processor part, in order to verify the performance of implant, a test device capable of simulating human implant environment is needed, and the test device needs to simulate the key indicators of human physiological environment, such as temperature and salt water concentration, to ensure the safety and reliability of the user when using the product.

[0004] Therefore, in order to realize the test of simulating human physiological environment for cochlear implant, the utility model provides a constant temperature testing arrangement of cochlear implant. CONTENT OF UTILITY MODEL

[0005] The utility model discloses a constant temperature testing arrangement of cochlear implant, which can solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] Design a constant temperature testing arrangement of cochlear implant, including container shell, the inside of container shell is separated by support constant temperature groove and stimulating groove, in the inside of constant temperature groove still be provided with the supporting platform for supporting implant;

[0008] Wherein the inside of constant temperature groove is installed with temperature control assembly, the outside of container shell is also installed with display control unit and input output unit, temperature control assembly and display control unit are electrically connected.

[0009] Further, the upper end of the support part is provided with a positioning groove, and the electrode wire of the implant is constrained in the positioning groove.

[0010] Further, the display control unit comprises a single-chip microcomputer installed in the container shell and a display screen electrically connected with the single-chip microcomputer.

[0011] The container shell is further provided with an adjusting button one and an adjusting button two at the front end, and the adjusting button one and the adjusting button two are electrically connected with the single-chip microcomputer.

[0012] Further, the temperature control assembly comprises a ceramic heating sheet installed in the constant-temperature tank and a thermistor electrically connected with the single-chip microcomputer, and the ceramic heating sheet is electrically connected with the single-chip microcomputer through the adjusting button one.

[0013] Further, the electrodes in the stimulation tank are electrically connected with the single-chip microcomputer through the adjusting button two and a load switching circuit.

[0014] Further, the input and output unit comprises an input connector and an output connector SMA, the input connector is electrically connected with the single-chip microcomputer, and the single-chip microcomputer is connected with an oscilloscope through the output connector SMA.

[0015] Further, the limiting support is a tubular structure, and a support column is further fixedly installed at the inner side of the constant-temperature tank.

[0016] Further, the device further comprises an isolation upper cover, and the isolation upper cover is used for sealing the upper end of the whole device to prevent the brine from volatilizing.

[0017] Further, the support is a limiting support.

[0018] The constant-temperature testing device for the cochlear implant provided in the utility model has the advantages that the constant-temperature testing device solves the problem that the measurement needs to be performed in a large constant-temperature box or the implant can only be measured at room temperature, the temperature can be adjusted to maximize the proximity to the human body temperature environment, the accuracy of the test is provided, and the impedance of the stimulating electrode part of the implant can be adjusted to simulate the human nerve response signal simulation function, thereby providing great convenience for the test of the implant product. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a principle block diagram of the utility model;

[0022] Figure 4 It is a load switching circuit diagram of the utility model;

[0023] Figure 5 It is the ceramic heating sheet drive circuit schematic diagram of the utility model;

[0024] Figure 6 It is the temperature feedback circuit schematic diagram of the utility model;

[0025] Figure 7 It is the waveform generation circuit schematic diagram of the utility model;

[0026] Figure 8 It is the single-chip microcomputer main control circuit schematic diagram of the utility model.

[0027] In the figure: 1, container shell;11, support part;12, constant temperature tank;13, stimulation tank;14, support table;141, avoidance opening;15, positioning groove;16, support column;2, display control unit;21, adjustment button one;22, adjustment button two;3, input and output unit;31, input connector;32, output connector SMA. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] Referring to Figures 1-8 For an embodiment of the utility model, it discloses a constant temperature testing device of cochlear implant, specifically, the testing device includes container shell 1, the inside of container shell 1 is separated by support part 11 and has constant temperature tank 12 and stimulation tank 13, and the inside of constant temperature tank 12 is also provided with support table 14 for supporting implant;

[0030] The inside of constant temperature tank 12 is installed with temperature control assembly, and the outside of container shell 1 is also installed with display control unit 2 and input and output unit 3, and temperature control assembly and display control unit 2 are electrically connected.

[0031] As preferred, the container shell in the embodiment is rectangular 1, so as to facilitate production and manufacturing, wherein the constant temperature tank 12 is used for placing implant main equipment decoding stimulator part and containing physiological saline, and the reference common electrode of implant is immersed in physiological saline to provide current loop for subsequent implant test.

[0032] The stimulation tank 13 is used for placing implant equipment stimulating electrode part and containing physiological saline to provide current loop for subsequent implant test.

[0033] In some embodiments, the upper end of the support part 11 is provided with a positioning groove 15, and the electrode wire of the implant is constrained in the positioning groove 15, and the positioning groove 15 is used for suspending the stimulation electrode of the implant, so as to avoid the stimulation electrode from contacting the outer wall when placed in the water tank and affecting the measurement result.

[0034] In some embodiments, the display control unit 2 includes a single-chip microcomputer installed in the container shell 1 and a display screen electrically connected with the single-chip microcomputer, and as preferred, the display screen in the embodiment is an o led display screen, which is used for displaying the working temperature of the current constant-temperature testing device, and in the case of neural response telemetry simulation, the load resistance value of the current testing device can be displayed to emit a waveform and an amplitude, the production circuit principle of the waveform is as shown in Figure 7 of course, the generation circuit is also connected with the single-chip microcomputer, and the person skilled in the art only needs to connect the corresponding pins according to the circuit diagram, and the structure will not be described here;

[0035] The front end of the container shell 1 is also provided with an adjusting button one 21 and an adjusting button two 22, and the adjusting button one 21 and the adjusting button two 22 are electrically connected with the single-chip microcomputer, and the adjusting button one 21 in the embodiment is used for adjusting the temperature of the constant-temperature tank 12, so as to simulate the human body temperature environment, and the adjusting button two 22 is used for adjusting the load impedance of the testing device, and the specific adjustment principle will be described in detail later, and will not be described here.

[0036] On the basis of the above-mentioned embodiment, the temperature control assembly in the embodiment includes a ceramic heating sheet and a thermistor installed in the constant-temperature tank 12, and the thermistor in the embodiment is used for detecting the temperature, and of course, a waterproof thermistor is preferably used in the embodiment, and the thermistor is electrically connected with the single-chip microcomputer, and the ceramic heating sheet is electrically connected with the single-chip microcomputer through the adjusting button one 21, and the specific connection can be as shown in Figure 5 and Figure 6 and the thermistor temperature detection and feedback circuit principle diagram.

[0037] In addition, the electrode in the stimulation tank 13 in the embodiment is electrically connected with the single-chip microcomputer through the adjusting button two 22 and a load switching circuit, as shown in Figure 4The load switching circuit of the embodiment is electrically connected with the single-chip microcomputer, and comprises three output circuits, when the adjusting button two 22 is pressed, the single-chip microcomputer is switched to different output circuits, the difference of the three output circuits is input end and load resistance, the three load resistances are R193 with a resistance of 1K, R196 with a resistance of 2K and R199 with a resistance of 10K, when the single-chip microcomputer carries out different port outputs, different load resistance paths can be switched, so that the impedance value between the switching measurement electrodes can be controlled, and the simulated nerve response signal can be controlled to be sent.

[0038] In some embodiments, the input and output unit 3 includes an input connector 31 and an output connector SMA 32, the input connector 31 is DC005, which is mainly 12V DC power supply, used for power supply of the whole system, the input connector DC005 is electrically connected with the single-chip microcomputer, and the single-chip microcomputer is connected with an oscilloscope through the output connector SMA 32.

[0039] Specifically, the table 14 is a tubular structure, and an avoiding opening 141 is further formed in the top of the table 14, the avoiding opening 141 is used for avoiding other parts of the implant to extend outward, wherein the inner side of the constant-temperature tank 12 is further fixedly installed with a supporting column 16, the table 14 is a limiting table, and the table 14 is used for fixing the artificial cochlea implant receiving antenna, so that displacement of the external device during coupling can be avoided, and the implant reference electrode can be effectively immersed in water, and the supporting column 16 is used for further providing support.

[0040] It should be noted that the utility model further includes an isolation upper cover, the isolation upper cover is used for sealing the upper end of the whole device, so that volatilization of the saline water is prevented, and the isolation upper cover is used for sealing the constant-temperature tank 12 and the stimulation tank 13, of course, the isolation upper cover in the embodiment can be directly covered on the upper side of the device, or a fastener such as a bolt can be used to connect and fix the isolation upper cover.

[0041] In conclusion, the constant-temperature detection device provided in the utility model solves the problem that previous measurement needs to be measured in a large constant-temperature box or the implant can only be measured at room temperature, the temperature can be adjusted to maximize the proximity to the human body temperature environment, the accuracy of the test is provided, and secondly, the impedance of the stimulation electrode part of the implant can be adjusted, the human body nerve response signal simulation generating function can be simulated, and great convenience is provided for implant product test.

[0042] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A thermostat testing device for a cochlear implant, comprising a container housing (1), characterized in that: The inside of the container shell (1) is divided into a constant temperature tank (12) and a stimulation tank (13) by a support part (11), and a support table (14) for supporting an implant is arranged in the inside of the constant temperature tank (12); The inside of the constant temperature tank (12) is provided with a temperature control assembly, and the outside of the container shell (1) is provided with a display control unit (2) and an input and output unit (3), and the temperature control assembly and the display control unit (2) are electrically connected.

2. The constant temperature test device of a cochlear implant according to claim 1, characterized in that: The upper end of the support part (11) is provided with a positioning groove (15), and the electrode wire of the implant is constrained in the positioning groove (15).

3. The constant temperature test device for a cochlear implant according to claim 1, wherein: The display control unit (2) comprises a single-chip microcomputer arranged in the container shell (1) and a display screen electrically connected with the single-chip microcomputer. The front end of the container shell (1) is further provided with an adjusting button one (21) and an adjusting button two (22), and the adjusting button one (21) and the adjusting button two (22) are electrically connected with the single-chip microcomputer.

4. The constant temperature test device of a cochlear implant according to claim 3, characterized in that: The temperature control assembly comprises a ceramic heating sheet arranged in the constant temperature tank (12) and a thermistor, the thermistor is electrically connected with the single-chip microcomputer, and the ceramic heating sheet is electrically connected with the single-chip microcomputer through the adjusting button one (21).

5. The constant temperature test device for a cochlear implant according to claim 3, wherein: The electrode in the stimulation tank (13) is electrically connected with the single-chip microcomputer through the adjusting button two (22) and a load switching circuit.

6. The constant temperature test device of a cochlear implant according to claim 3, characterized in that: The input and output unit (3) comprises an input connector (31) and an output connector SMA (32), the input connector (31) is electrically connected with the single-chip microcomputer, and the single-chip microcomputer is externally connected with an oscilloscope through the output connector SMA (32).

7. The constant temperature test device for a cochlear implant according to claim 1, wherein: The support table (14) is a tubular structure, and an avoiding opening (141) is further arranged at the top of the support table (14), and the inside of the constant temperature tank (12) is further fixedly provided with a support column (16).

8. The constant temperature test device for a cochlear implant according to claim 1, wherein: Further comprising an isolation upper cover, the isolation upper cover is used for sealing the upper end of the whole device to prevent the volatilization of saline.

9. The constant temperature test device for a cochlear implant according to claim 1, wherein: The support table (14) is a limiting support table.

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