Artificial cochlea sound processor environment adaptability testing device

Abstract

The utility model relates to the technical field of artificial cochlea, in particular to an artificial cochlea sound processor environment adaptability testing device which comprises a testing box, a testing assembly and testing equipment. The test box is used for placing a sound processor and a sound production device; the test assembly comprises a water tank added with conductive liquid, an implant is placed in the water tank, and the implant is wirelessly coupled with the sound processor. The device is mainly composed of the test box, the test assembly and the test equipment, and can effectively solve the problems that the test state is single, the test data and information amount are small, and the test efficiency is high. The test device solves the problems that an existing artificial cochlea system can not accurately detect an electric signal output by the implant end of the artificial cochlea system, the test device has the advantages that the test environment is flexibly set, and the operation state of the artificial cochlea system is monitored, and a test assembly is provided with a standard implant which is in wireless coupling operation with a sound processor, normal saline for testing and a load resistor. Therefore, connection with test equipment is facilitated, and the detection convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cochlear implants, in particular to a device for testing the environmental adaptability of a cochlear implant sound processor. Background Art

[0002] The cochlear implant is a revolutionary medical device that provides patients with severe or profound sensorineural hearing loss with the possibility of restoring hearing. The device mainly consists of an external sound processor and an internal implant. With the advancement of technology, the number of cochlear implant users has increased significantly, and the environments in which users live have become more diverse.

[0003] A cochlear implant includes an implant and external devices. The implant part usually includes a receiving coil, an electrode array, a circuit and a package, while the external device includes a microphone, a speech processor, a transmitting coil and a battery. For details, please refer to the cochlear implant simulation system disclosed in the prior art Chinese patent publication number "CN205268385U".

[0004] However, in diverse usage environments, it is crucial to ensure that the sound processor can operate stably. At present, the environmental adaptability test method of cochlear implant sound processors mainly relies on observing the status of their indicator lights to evaluate the operating stability. This method has obvious limitations: first, the amount of information provided by the indicator light status is limited and cannot fully reflect the actual working conditions of the sound processor; second, this test method cannot accurately detect the electrical signals output by the implant end of the cochlear implant system, and thus cannot evaluate its performance and adaptability in the body. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the operating stability is evaluated by observing the status of its indicator light, and a method is proposed to test the environmental adaptability of a cochlear implant sound processor.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] Design a cochlear implant sound processor environmental adaptability test device, including a test box, test components and test equipment;

[0008] The test box is used to place the sound processor and the sound-generating device;

[0009] The test assembly includes a water tank with conductive liquid added, an implant is placed in the water tank, the implant is wirelessly coupled to the sound processor, and a load unit is also provided between the water tank and the implant, and the load unit is electrically connected to the test device.

[0010] Furthermore, the side end of the test box has a test port, and a box cover is detachably connected to the test port, wherein the transmitting coil of the sound processor is attached to the inner side of the box cover.

[0011] Furthermore, the water tank is fixedly connected to the tank cover, and a gasket is provided between the tank cover and the transmitting coil.

[0012] Furthermore, the thickness of the gasket is 1mm-10mm.

[0013] Furthermore, the implant is installed on the inner side of the water tank, the receiving coil of the implant is fixed on the outer side of the tank cover and wirelessly coupled with the transmitting coil, and the interface electrode of the implant is immersed in the conductive liquid.

[0014] Furthermore, the load unit includes a metal sheet fixed in the water tank and immersed in the conductive liquid, the metal sheet is connected to one end of the load resistor through a wire, the other end of the load resistor is connected to the MP1 electrode of the implant through a wire, and the two ends of the load resistor 73 are electrically connected to the test device 3.

[0015] Furthermore, the load resistance is 1 kΩ or 10 kΩ.

[0016] Furthermore, the testing device is an oscilloscope, and the conductive liquid is physiological saline.

[0017] The utility model proposes a cochlear implant sound processor environmental adaptability test device, which has the beneficial effects of: the utility model is mainly composed of a test box, a test component and a test device, which can effectively solve the problems of a single test state, small test data and information volume, and inability to accurately detect the electrical signal output from the implant end of the cochlear implant system. The test device has the advantages of flexible setting of the test environment and monitoring of the operating status of the cochlear implant system. The test component is provided with a standard implant wirelessly coupled to the sound processor, physiological saline for testing and a load resistor, so as to facilitate connection with the test equipment and improve the convenience of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-section structure along AA.

[0021] In the figure: 1. Test box; 11. Box cover; 2. Test assembly; 3. Test equipment; 4. Sound processor; 41. Transmitter coil; 42. Gasket; 5. Sound generator; 6. Implant; 61. Receiving coil; 7. Load unit; 71. Metal sheet; 72. Wire; 73. Load resistor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-3 This is an embodiment of the present invention, which discloses a device for testing the environmental adaptability of a cochlear implant sound processor. Specifically, the device includes a test box 1, a test component 2, and a test device 3;

[0024] The test box 1 is used to place the sound processor 4 and the sound device 5. In a preferred embodiment, the sound device 5 described in the present invention can use a mobile phone or other audio player to play audio signals for the microphone of the sound processor 4 to collect audio;

[0025] The test component 2 includes a water tank with conductive liquid added, an implant 6 is placed in the water tank, the implant 6 is wirelessly coupled to the sound processor 4, and a load unit 7 is also provided between the water tank and the implant 6, and the load unit 7 is electrically connected to the test device 3.

[0026] In some embodiments, the side end of the test box 1 in the present invention has a test port, and the test port is detachably connected to a box cover 11, wherein the transmitting coil 41 of the sound processor 4 is attached to the inner side of the box cover 11. Specifically, the box cover 11 can be connected to the test port by a threaded connection or a snap-on connection. The basic thickness of the box cover 11 is 2 mm, which isolates the test box environment from the outside world, and the sound device 5 and the sound processor 4 can be taken out through the test port. Of course, a partition for supporting the sound device 5 and the sound processor 4 can also be placed inside the test box 1.

[0027] On the basis of the above embodiment, the water tank in this embodiment is fixedly connected to the tank cover 11. Preferably, the water tank in this embodiment can be fixed to the tank cover 11 by fasteners such as bolts. In addition, a drainage hole can be provided at the bottom of the water tank so that the conductive liquid inside the water tank can be discharged first when the water tank is disassembled. A gasket 42 is also provided between the tank cover 11 and the transmitting coil 41.

[0028] Specifically, in this embodiment, the thickness of the gasket 42 is 1 mm to 10 mm. The gasket 42 is blocked between the transmitting coil 41 and the receiving coil 61 to simulate the thickness of the human scalp, thereby ensuring the accuracy of the test data.

[0029] Furthermore, the implant 6 described in this embodiment is installed on the inner side of the water tank, the receiving coil 61 of the implant 6 is fixed on the outer side of the box cover 11 and is wirelessly coupled with the transmitting coil 41, and the interface electrode of the implant 6 is immersed in the conductive liquid. The interface electrodes described in this embodiment are 22 electrodes E1 to E22. The specific circuit principles have been disclosed in the prior art and will not be elaborated here. Specifically, the transmitting coil 41, the implant 6 and the receiving coil 61 described in this embodiment can all be fixed by adhesive connection. Of course, other methods can also be used for fixing in the relevant field, such as fastening with bolts, etc. The specific form can be selected by technical personnel in the relevant field and will not be elaborated here.

[0030] Based on the above embodiment, the load unit 7 in this embodiment includes a metal sheet 71 fixed in the water tank and immersed in the conductive liquid. The metal sheet 71 is connected to one end of the load resistor 73 through a wire 72. The other end of the load resistor 73 is connected to the MP1 electrode of the implant 6 through the wire 72. Both ends of the load resistor 73 are electrically connected to the test device 3.

[0031] The MP1 electrode serves as the implant's reference electrode, while electrodes E1-E22 form a current loop with the MP1 electrode. For example, the signal from the E1 electrode flows through saline into the metal sheet in the load cell, passes through the load, and then returns to the MP1 electrode. Therefore, the oscilloscope can measure the voltage across the load and calculate the current using the equation I = V / R. The oscilloscope detects a bidirectional square wave signal.

[0032] In a further embodiment, the load resistor 73 is 1 kΩ or 10 kΩ. The two specifications of the load resistor 73 can be adaptively selected by those skilled in the art and will not be elaborated herein.

[0033] It should be noted that in this embodiment, the test device 3 is an oscilloscope, and the oscilloscope probes are respectively connected to the two ends of the load resistor 73. During operation, the amplitude, width and frequency of the signal output by the implant 6 are measured by the oscilloscope, and the adaptability of the sound processor to the environment is accurately tested through specific numerical values. The conductive liquid is physiological saline.

[0034] During operation, a cover 11 is installed on the test port of the test box 1 to isolate the test box 1 from the outside world. The sound processor 4 is placed inside the test box 1. The transmitting coil 41 of the sound processor 4 is wirelessly coupled to the receiving coil 61 of the implant 6 outside the test box 1 through the cover 11.

[0035] A sound-generating device 5 such as a mobile phone is placed in the test box 1 to play audio signals for the microphone of the sound processor 4 to collect audio;

[0036] Pour physiological saline into the water tank and connect the load unit 7 load resistor for signal measurement. The implant 6 is installed on the water tank, and its E1-E22 electrodes are immersed in the physiological saline. The MP1 electrode is connected to one end of the load resistor 73 via a micro test clip. A metal sheet 71 welded to a wire 72 is placed in the water tank. One end of the wire 72 is connected to the other end of the load resistor 73. Thereafter, the oscilloscope probes are connected to both ends of the load resistor 73.

[0037] After the sound processor 4 downloads the running program through the cochlear implant debugging system, it is connected to the battery and placed in the test box 1. The transmitting coil 41 is attached to the inner side of the test port box cover 11 of the test box 1 and is wirelessly coupled with the receiving coil 61 of the implant 6 outside the test box 1. The sound-generating device 5 is placed in the test box 1 to play a 1KHz audio signal with a sound intensity of 60 to 70dB. Of course, the test box 1 described in this embodiment is a temperature and humidity control box, which is used to operate the required parameters according to product testing requirements within the temperature range of -20°C to 50°C and the humidity range of 0% RH to 100% RH. At this time, an oscilloscope is used to measure the signal amplitude, width and frequency output from the implant end, and the adaptability of the sound processor to the environment is accurately tested through specific numerical values.

[0038] In summary, the utility model is mainly composed of a test box 1, a test component 2 and a test device 3. It can effectively solve the problems of a single test state, small test data and information volume, and inability to accurately detect the electrical signal output from the implant end of the cochlear implant system. The test device has the advantages of flexible setting of the test environment and monitoring of the operating status of the cochlear implant system. The test component 2 is provided with a standard implant 6 wirelessly coupled with a sound processor 4, physiological saline for testing and a load resistor 73, so as to facilitate connection with the test device 3 and improve the convenience of detection.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cochlear implant sound processor environmental adaptability testing device, characterized in that: The test chamber (1), the test assembly (2) and the test equipment (3) are included; The test box (1) is used to place a sound processor (4) and a sound generating device (5); The test assembly (2) comprises a water tank filled with a conductive liquid, an implant (6) is placed in the water tank, the implant (6) is wirelessly coupled to the sound processor (4), a load unit (7) is further provided between the water tank and the implant (6), and the load unit (7) is electrically connected to the test device (3).

2. The environmental adaptability testing device for a cochlear implant sound processor according to claim 1, characterized in that: The side end of the test box (1) has a test port, and a box cover (11) is detachably connected to the test port, wherein the transmitting coil (41) of the sound processor (4) is attached to the inner side of the box cover (11).

3. The environmental adaptability testing device for a cochlear implant sound processor according to claim 2, characterized in that: The water tank is fixedly connected to the tank cover (11), and a gasket (42) is provided between the tank cover (11) and the transmitting coil (41).

4. The environmental adaptability testing device for a cochlear implant sound processor according to claim 3, characterized in that: The thickness of the gasket (42) is 1 mm to 10 mm.

5. The environmental adaptability testing device for a cochlear implant sound processor according to claim 2, characterized in that: The implant (6) is installed on the inner side of the water tank, the receiving coil (61) of the implant (6) is fixed on the outer side of the tank cover (11) and wirelessly coupled with the transmitting coil (41), and the interface electrode of the implant (6) is immersed in the conductive liquid.

6. The environmental adaptability testing device for a cochlear implant sound processor according to claim 1, characterized in that: The load unit (7) comprises a metal sheet (71) fixed in the water tank and immersed in the conductive liquid, the metal sheet (71) being connected to one end of a load resistor (73) via a wire (72), the other end of the load resistor (73) being connected to the MP1 electrode of the implant (6) via the wire (72), and both ends of the load resistor (73) being electrically connected to the test device (3).

7. The environmental adaptability testing device for a cochlear implant sound processor according to claim 6, characterized in that: The load resistor (73) is 1 kΩ or 10 kΩ.

8. A cochlear implant sound processor environmental adaptability testing device according to any one of claims 1 to 7, characterized in that: The testing device (3) is an oscilloscope, and the conductive liquid is physiological saline.

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