A magnet testing device

Abstract

The utility model provides a magnet testing device, including support frame, is provided with implant magnet fixed module on the top of this support frame, implant magnet is detachably fixed on this implant magnet fixed module, still be equipped with drive motor on this support frame, drive motor is located implant magnet fixed module below, be equipped with extracorporeal magnet fixed module on drive motor, extracorporeal magnet fixed module is fixed with extracorporeal magnet, specifically, implant magnet and this extracorporeal magnet correspond to set up upside down, and implant magnet and extracorporeal magnet between having set distance, drive motor is used for driving extracorporeal magnet fixed module rotation, drive motor is connected with control system, and control system is used for controlling the rotating speed of drive motor, and control system can record the number of turns of drive motor rotation. Be used for carrying out the test to the reliability of cochlear implant magnet, is favorable to guarantee the service life of cochlear implant magnet.

Description

Technical Field

[0001] This utility model relates to the field of cochlear implant technology, and in particular to a magnet testing device for testing the reliability of magnets implanted in cochlear implants. Background Technology

[0002] The cochlear implant system consists of two parts: an external sound processor and an internal implant. The external sound processor collects sound signals through a built-in microphone and converts them into electrical signals. After analysis and encoding, these signals are wirelessly transmitted to the implant via a transmitting coil. The implant decodes the received signals and generates special electrical pulses, which stimulate the auditory nerve in the cochlea through electrodes, thereby producing hearing. The internal implant contains a magnet at the center of the receiving coil, used to attract and fix the transmitting coil magnet. The implant magnet employs a special structural design; during MRI examinations, the internal magnetic core can rotate freely to reduce the influence of external magnetic fields. However, prolonged rotation of the core may cause the coating to peel off, wear down, or the core to become stuck. For this reason, a dedicated testing device is needed to verify the reliability of the implant magnet in the early stages. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a magnet testing device for testing the reliability of cochlear implant magnets, which helps to ensure the service life of cochlear implant magnets.

[0004] To achieve the above and other related objectives, this utility model provides a magnet testing device, including a support frame; an implanted magnet fixing module disposed on the top of the support frame, wherein an implanted magnet is detachably fixed on the implanted magnet fixing module; a drive motor fixedly disposed on the support frame and located below the implanted magnet fixing module, wherein an external magnet fixing module is disposed on the drive motor, and an external magnet is fixedly disposed on the external magnet fixing module; the implanted magnet and the external magnet are vertically corresponding and are separated by a predetermined distance; the drive motor is used to drive the external magnet fixing module to rotate; and a control system connected to the drive motor for controlling the rotational speed of the drive motor, and the control system is capable of recording the number of rotations of the drive motor.

[0005] Furthermore, the support frame includes a top plate, and the top plate has waist-shaped holes on both the left and right sides. The implanted magnet fixing module is connected to the waist-shaped holes on the top plate by fastening bolts.

[0006] Furthermore, the support frame has a central partition in the middle, and the drive motor is fixedly mounted on the central partition.

[0007] Furthermore, the implanted magnet fixing module includes a lower clamping plate and an upper clamping plate, wherein the lower clamping plate is provided with a receiving groove, the implanted magnet is disposed in the receiving groove, the upper clamping plate is connected to the lower clamping plate by the fastening bolt, and the implanted magnet is clamped between the upper clamping plate and the lower clamping plate.

[0008] Furthermore, the external magnet fixing module includes a mounting post, the middle of which is provided with a threaded hole extending along the axial direction of the mounting post, a threaded rod connected to the output shaft of the drive motor, a positioning nut threadedly connected to the threaded rod, the mounting post being threadedly connected to the threaded rod through the threaded hole, and the mounting post being located above the positioning nut; the top of the mounting post is provided with a mounting groove, and the external magnet is fixedly disposed in the mounting groove.

[0009] Furthermore, the external magnet is interference-fitted with the mounting groove.

[0010] Furthermore, the top plate is provided with a clearance notch, which is located below the receiving groove.

[0011] Furthermore, the control system includes a power supply interface, a processor connected to the power supply interface, an output interface connected to the processor, and a display. The power supply interface is used to connect to an external power source, the output interface is connected to the drive motor, the processor is used to control the speed of the drive motor, and the display can display the number of rotations of the drive motor in real time.

[0012] As described above, the magnet testing device of this utility model has the following beneficial effects: In use, the implanted magnet is placed on the top of the support frame by the implanted magnet fixing module, and the external magnet is placed on the drive motor by the external magnet fixing module, so that the implanted magnet and the external magnet are aligned at the center and a set distance is maintained between them, so that the implanted magnet and the external magnet can generate magnetic attraction. Then, the external magnet fixing module is driven to rotate by the drive motor, and the rotation of the external magnet fixing module will drive the external magnet fixed on it to rotate together. The rotation of the external magnet will synchronously drive the magnetic core in the implanted magnet (the implanted magnet includes a shell and a magnetic core set inside the shell) to rotate together. The drive motor is controlled by the control system to rotate at a certain speed and a set number of revolutions. After the test is completed, the implanted magnet is removed, and then the shell of the implanted magnet is opened to check whether the coating of the internal magnetic core has peeled off or worn, so as to determine whether the quality of the implanted magnet is reliable. That is, if the coating of the magnetic core peels off or wears off, it means that the quality of the implanted magnet is reliable and the stability is good; otherwise, the quality of the implanted magnet is unreliable. Attached Figure Description

[0013] Figure 1 The diagram shown is a structural schematic of the magnet testing device provided by this utility model.

[0014] Figure 2 The diagram shown is a structural schematic of the implantable magnet fixation module provided by this utility model.

[0015] Figure 3 The diagram shown is a structural schematic of the external magnet fixation module provided by this utility model.

[0016] Figure 4 The diagram shown is a structural schematic of the support frame provided by this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 10 Support frame

[0019] 11. Top Slab

[0020] 110 Waist-shaped hole

[0021] 111 Avoiding the gap

[0022] 12. Central partition

[0023] 120 through hole

[0024] 121 Connecting hole

[0025] 20 Implanted magnet fixation module

[0026] 21 Lower clamping plate

[0027] 22 Upper clamping plate

[0028] 201 Implanted magnets

[0029] 202 Fastening Bolt

[0030] 30 drive motors

[0031] 31 Threaded rod

[0032] 311 Locating Nut

[0033] 301 Fastening Screw

[0034] 40 External Magnet Fixation Module

[0035] 41 Mounting Column

[0036] 410 threaded hole

[0037] 411 Mounting Slot

[0038] 401 External Magnet

[0039] 50 Control System

[0040] 51 Power Supply Interface

[0041] 52 processor

[0042] 53 Output Interface

[0043] 54 monitors Detailed Implementation

[0044] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Please see Figures 1 to 4 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0048] This invention provides a magnet testing device for testing the reliability of magnets implanted in cochlear implants, such as... Figure 1 As shown, the magnet testing device includes a support frame 10. An implanted magnet fixing module 20 is provided on the top of the support frame 10. An implanted magnet 201 is detachably fixed on the implanted magnet fixing module 20. A drive motor 30 is also provided on the support frame 10. The drive motor 30 is located below the implanted magnet fixing module 20. An external magnet fixing module 40 is provided on the drive motor 30. An external magnet 401 is fixed on the external magnet fixing module 40. Specifically, the implanted magnet 201 and the external magnet 401 are arranged vertically correspondingly, and there is a set distance between the implanted magnet 201 and the external magnet 401. The drive motor 30 is used to drive the external magnet fixing module 40 to rotate. The drive motor 30 is connected to a control system 50. The control system 50 is used to control the rotation speed of the drive motor 30, and the control system 50 can record the number of rotations of the drive motor 30.

[0049] The beneficial effects of the magnet testing device of this utility model are as follows: In use, the implanted magnet 201 is placed on the top of the support frame 10 by the implanted magnet fixing module 20, and the external magnet 401 is placed on the drive motor 30 by the external magnet fixing module 40, so that the implanted magnet 201 and the external magnet 401 are aligned at the center and a set distance is maintained between them, so that the implanted magnet 201 and the external magnet 401 can generate magnetic attraction. Then, the external magnet fixing module 40 is driven to rotate by the drive motor 30, and the rotation of the external magnet fixing module 40 will drive the fixing... The external magnet 401 rotates together with the implanted magnet 201, which in turn drives the magnetic core inside the implanted magnet 201 (which includes a housing and a magnetic core inside the housing) to rotate. The control system 50 controls the drive motor 30 to rotate at a certain speed and a set number of revolutions. After the test is completed, the implanted magnet 201 is removed, and the housing of the implanted magnet is opened to check whether the coating of the magnetic core inside has peeled off or worn. This determines whether the quality of the implanted magnet is reliable. If the coating of the magnetic core peels off or wears off, it means that the quality of the implanted magnet is reliable and has good stability. Otherwise, the quality of the implanted magnet is unreliable.

[0050] Furthermore, such as Figure 1 and Figure 4As shown, in this embodiment, the support frame 10 includes a top plate 11, with waist-shaped holes 110 on both the left and right sides. The implanted magnet fixing module 20 is connected to the waist-shaped holes 110 on the top plate 11 via fastening bolts 202. By providing waist-shaped holes on the top plate 11, when the implanted magnet fixing module 20 is connected to the waist-shaped holes 110 on the top plate 11 via fastening bolts 202, the position of the implanted magnet fixing module 20 can be easily adjusted, making the alignment of the implanted magnet 201 on the implanted magnet fixing module 20 with the external magnet 401 below more precise.

[0051] Furthermore, such as Figure 1 and Figure 2 As shown, in this embodiment, the implanted magnet fixing module 20 includes a lower clamping plate 21 and an upper clamping plate 22. The lower clamping plate 21 has a receiving groove, and the implanted magnet 201 is disposed in the receiving groove. The upper clamping plate 22 is connected to the lower clamping plate 21 by the fastening bolt 202, and the implanted magnet 201 is clamped between the upper clamping plate 21 and the lower clamping plate 22. That is, the fastening bolt 202 passes through the waist-shaped hole 110 on the upper clamping plate 22, the lower clamping plate 21, and the top plate of the support frame. While connecting and fixing the implanted magnet fixing module 20, i.e., the lower clamping plate 21 and the upper clamping plate 22, to the top plate 11, the upper clamping plate 22 is also connected and fixed to the lower clamping plate 21, thereby achieving clamping and fixing of the implanted magnet 201. The structure is simple and easy to assemble and disassemble.

[0052] Furthermore, such as Figure 1 and Figure 3 As shown, in this embodiment, the external magnet fixing module 40 includes a mounting post 41. The mounting post 41 has a threaded hole 410 extending along the axial direction of the mounting post 41 in its middle part. Correspondingly, a threaded rod 31 is connected to the output shaft of the drive motor 30. A positioning nut 311 is threadedly connected to the threaded rod 31. The mounting post 41 is threadedly connected to the threaded rod 31 through the threaded hole 410, and the mounting post 41 is located above the positioning nut 311. A mounting groove 411 is provided at the top of the mounting post 41, and the external magnet 401 is fixedly disposed in the mounting groove 411. This structural design allows for easy adjustment of the distance between the external magnet 401 and the implanted magnet 201 according to different needs. Specifically, by screwing on the mounting post 41, the distance between the top of the mounting post and the implanted magnet 201 can be adjusted by moving the mounting post 41 up and down along the threaded rod 31. After the mounting post 41 is positioned, the positioning nut 311 is screwed on, causing it to abut against the bottom of the mounting post 41, thus positioning the mounting post 41 and ensuring its stability during rotation. Specifically, in this embodiment, the external magnet 401 and the mounting groove 411 are interference-fitted, resulting in a simple structure.

[0053] Furthermore, such as Figure 4As shown, in this embodiment, the top plate 11 is provided with an avoidance notch 111, which is located below the receiving groove, i.e., the implanted magnet 201. This structural design allows the distance between the external magnet 401 and the implanted magnet 201 to be adjusted to a smaller range. For example, the mounting post 41 can be rotated upwards to make the external magnet 401 at the top of the mounting post 41 contact the bottom of the lower clamping plate 21, thereby achieving a smaller adjustment range between the external magnet 401 and the implanted magnet 201.

[0054] Furthermore, such as Figure 1 and Figure 4 As shown, the support frame 10 has a central partition 12 in its middle section, and the drive motor 30 is fixedly mounted on the central partition 12. Specifically, the central partition 12 has a connecting hole 121 and a through hole 120. The drive motor 30 is fixedly connected to the connecting hole 121 on the central partition 12 by a fastening screw 301, and the drive motor is located below the central partition 12. The output shaft of the drive motor 30 extends vertically upward through the through hole 120. This arrangement, placing the drive motor 12 below the central partition 12, separates the drive motor 30 from the external magnet 401 through the central partition 12, thus preventing the drive motor 12 from affecting the test.

[0055] Furthermore, such as Figure 1 As shown, in this embodiment, the control system 50 includes a power supply interface 51, a processor 52 connected to the power supply interface 51, an output interface 53 connected to the processor 52, and a display 54. The power supply interface 51 is used to connect to an external power source, i.e., to connect the power source to the power supply interface 51 through a power adapter. The output interface 53 is connected to the drive motor 30. The processor 52 is used to control the rotation speed of the drive motor 30. The display 54 can display the number of rotations of the drive motor 30 in real time.

[0056] In summary, the magnet testing device of this invention can be used to verify the reliability of the magnetic core of an artificial cochlear implant magnet after a certain number of rotations. It also features a simple structure and convenient operation. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0057] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A magnet testing device, characterized in that, include: Support frame; An implantable magnet fixation module is disposed on the top of the support frame, and an implantable magnet is detachably fixed on the implantable magnet fixation module; A drive motor is fixedly mounted on the support frame and located below the implanted magnet fixation module. An external magnet fixation module is mounted on the drive motor, and an external magnet is fixedly mounted on the external magnet fixation module. The implanted magnet and the external magnet are vertically corresponding and are spaced at a set distance from each other. The drive motor is used to drive the external magnet fixation module to rotate. A control system is connected to the drive motor and is used to control the rotational speed of the drive motor. The control system is also capable of recording the number of revolutions of the drive motor.

2. The magnet testing device according to claim 1, characterized in that, The support frame includes a top plate, and the top plate has waist-shaped holes on both the left and right sides. The implanted magnet fixing module is connected to the waist-shaped holes on the top plate by fastening bolts.

3. The magnet testing device according to claim 1, characterized in that, The support frame has a central partition, and the drive motor is fixedly mounted on the central partition.

4. The magnet testing device according to claim 2, characterized in that, The implanted magnet fixing module includes a lower clamping plate and an upper clamping plate. The lower clamping plate is provided with a receiving groove, and the implanted magnet is disposed in the receiving groove. The upper clamping plate is connected to the lower clamping plate by the fastening bolt, and the implanted magnet is clamped between the upper clamping plate and the lower clamping plate.

5. The magnet testing device according to claim 4, characterized in that, The external magnet fixing module includes a mounting post, a threaded hole extending along the axial direction of the mounting post in the middle of the mounting post, a threaded rod connected to the output shaft of the drive motor, a positioning nut threadedly connected to the threaded rod, the mounting post being threadedly connected to the threaded rod through the threaded hole, and the mounting post being located above the positioning nut; the top of the mounting post is provided with a mounting groove, and the external magnet is fixedly installed in the mounting groove.

6. The magnet testing device according to claim 5, characterized in that, The external magnet is interference-fitted with the mounting slot.

7. The magnet testing device according to claim 5, characterized in that, The top plate is provided with a clearance notch, which is located below the receiving groove.

8. The magnet testing device according to claim 1, characterized in that, The control system includes a power supply interface, a processor connected to the power supply interface, an output interface connected to the processor, and a display. The power supply interface is used to connect to an external power source, the output interface is connected to the drive motor, the processor is used to control the speed of the drive motor, and the display can display the number of rotations of the drive motor in real time.

Images